Alexandre Lision | f26d3e5 | 2014-04-14 16:22:31 -0400 | [diff] [blame] | 1 | #!/usr/bin/env perl |
| 2 | # |
| 3 | # ==================================================================== |
| 4 | # Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL |
| 5 | # project. The module is, however, dual licensed under OpenSSL and |
| 6 | # CRYPTOGAMS licenses depending on where you obtain it. For further |
| 7 | # details see http://www.openssl.org/~appro/cryptogams/. |
| 8 | # ==================================================================== |
| 9 | # |
| 10 | # This module implements support for Intel AES-NI extension. In |
| 11 | # OpenSSL context it's used with Intel engine, but can also be used as |
| 12 | # drop-in replacement for crypto/aes/asm/aes-x86_64.pl [see below for |
| 13 | # details]. |
| 14 | # |
| 15 | # Performance. |
| 16 | # |
| 17 | # Given aes(enc|dec) instructions' latency asymptotic performance for |
| 18 | # non-parallelizable modes such as CBC encrypt is 3.75 cycles per byte |
| 19 | # processed with 128-bit key. And given their throughput asymptotic |
| 20 | # performance for parallelizable modes is 1.25 cycles per byte. Being |
| 21 | # asymptotic limit it's not something you commonly achieve in reality, |
| 22 | # but how close does one get? Below are results collected for |
| 23 | # different modes and block sized. Pairs of numbers are for en-/ |
| 24 | # decryption. |
| 25 | # |
| 26 | # 16-byte 64-byte 256-byte 1-KB 8-KB |
| 27 | # ECB 4.25/4.25 1.38/1.38 1.28/1.28 1.26/1.26 1.26/1.26 |
| 28 | # CTR 5.42/5.42 1.92/1.92 1.44/1.44 1.28/1.28 1.26/1.26 |
| 29 | # CBC 4.38/4.43 4.15/1.43 4.07/1.32 4.07/1.29 4.06/1.28 |
| 30 | # CCM 5.66/9.42 4.42/5.41 4.16/4.40 4.09/4.15 4.06/4.07 |
| 31 | # OFB 5.42/5.42 4.64/4.64 4.44/4.44 4.39/4.39 4.38/4.38 |
| 32 | # CFB 5.73/5.85 5.56/5.62 5.48/5.56 5.47/5.55 5.47/5.55 |
| 33 | # |
| 34 | # ECB, CTR, CBC and CCM results are free from EVP overhead. This means |
| 35 | # that otherwise used 'openssl speed -evp aes-128-??? -engine aesni |
| 36 | # [-decrypt]' will exhibit 10-15% worse results for smaller blocks. |
| 37 | # The results were collected with specially crafted speed.c benchmark |
| 38 | # in order to compare them with results reported in "Intel Advanced |
| 39 | # Encryption Standard (AES) New Instruction Set" White Paper Revision |
| 40 | # 3.0 dated May 2010. All above results are consistently better. This |
| 41 | # module also provides better performance for block sizes smaller than |
| 42 | # 128 bytes in points *not* represented in the above table. |
| 43 | # |
| 44 | # Looking at the results for 8-KB buffer. |
| 45 | # |
| 46 | # CFB and OFB results are far from the limit, because implementation |
| 47 | # uses "generic" CRYPTO_[c|o]fb128_encrypt interfaces relying on |
| 48 | # single-block aesni_encrypt, which is not the most optimal way to go. |
| 49 | # CBC encrypt result is unexpectedly high and there is no documented |
| 50 | # explanation for it. Seemingly there is a small penalty for feeding |
| 51 | # the result back to AES unit the way it's done in CBC mode. There is |
| 52 | # nothing one can do and the result appears optimal. CCM result is |
| 53 | # identical to CBC, because CBC-MAC is essentially CBC encrypt without |
| 54 | # saving output. CCM CTR "stays invisible," because it's neatly |
| 55 | # interleaved wih CBC-MAC. This provides ~30% improvement over |
| 56 | # "straghtforward" CCM implementation with CTR and CBC-MAC performed |
| 57 | # disjointly. Parallelizable modes practically achieve the theoretical |
| 58 | # limit. |
| 59 | # |
| 60 | # Looking at how results vary with buffer size. |
| 61 | # |
| 62 | # Curves are practically saturated at 1-KB buffer size. In most cases |
| 63 | # "256-byte" performance is >95%, and "64-byte" is ~90% of "8-KB" one. |
| 64 | # CTR curve doesn't follow this pattern and is "slowest" changing one |
| 65 | # with "256-byte" result being 87% of "8-KB." This is because overhead |
| 66 | # in CTR mode is most computationally intensive. Small-block CCM |
| 67 | # decrypt is slower than encrypt, because first CTR and last CBC-MAC |
| 68 | # iterations can't be interleaved. |
| 69 | # |
| 70 | # Results for 192- and 256-bit keys. |
| 71 | # |
| 72 | # EVP-free results were observed to scale perfectly with number of |
| 73 | # rounds for larger block sizes, i.e. 192-bit result being 10/12 times |
| 74 | # lower and 256-bit one - 10/14. Well, in CBC encrypt case differences |
| 75 | # are a tad smaller, because the above mentioned penalty biases all |
| 76 | # results by same constant value. In similar way function call |
| 77 | # overhead affects small-block performance, as well as OFB and CFB |
| 78 | # results. Differences are not large, most common coefficients are |
| 79 | # 10/11.7 and 10/13.4 (as opposite to 10/12.0 and 10/14.0), but one |
| 80 | # observe even 10/11.2 and 10/12.4 (CTR, OFB, CFB)... |
| 81 | |
| 82 | # January 2011 |
| 83 | # |
| 84 | # While Westmere processor features 6 cycles latency for aes[enc|dec] |
| 85 | # instructions, which can be scheduled every second cycle, Sandy |
| 86 | # Bridge spends 8 cycles per instruction, but it can schedule them |
| 87 | # every cycle. This means that code targeting Westmere would perform |
| 88 | # suboptimally on Sandy Bridge. Therefore this update. |
| 89 | # |
| 90 | # In addition, non-parallelizable CBC encrypt (as well as CCM) is |
| 91 | # optimized. Relative improvement might appear modest, 8% on Westmere, |
| 92 | # but in absolute terms it's 3.77 cycles per byte encrypted with |
| 93 | # 128-bit key on Westmere, and 5.07 - on Sandy Bridge. These numbers |
| 94 | # should be compared to asymptotic limits of 3.75 for Westmere and |
| 95 | # 5.00 for Sandy Bridge. Actually, the fact that they get this close |
| 96 | # to asymptotic limits is quite amazing. Indeed, the limit is |
| 97 | # calculated as latency times number of rounds, 10 for 128-bit key, |
| 98 | # and divided by 16, the number of bytes in block, or in other words |
| 99 | # it accounts *solely* for aesenc instructions. But there are extra |
| 100 | # instructions, and numbers so close to the asymptotic limits mean |
| 101 | # that it's as if it takes as little as *one* additional cycle to |
| 102 | # execute all of them. How is it possible? It is possible thanks to |
| 103 | # out-of-order execution logic, which manages to overlap post- |
| 104 | # processing of previous block, things like saving the output, with |
| 105 | # actual encryption of current block, as well as pre-processing of |
| 106 | # current block, things like fetching input and xor-ing it with |
| 107 | # 0-round element of the key schedule, with actual encryption of |
| 108 | # previous block. Keep this in mind... |
| 109 | # |
| 110 | # For parallelizable modes, such as ECB, CBC decrypt, CTR, higher |
| 111 | # performance is achieved by interleaving instructions working on |
| 112 | # independent blocks. In which case asymptotic limit for such modes |
| 113 | # can be obtained by dividing above mentioned numbers by AES |
| 114 | # instructions' interleave factor. Westmere can execute at most 3 |
| 115 | # instructions at a time, meaning that optimal interleave factor is 3, |
| 116 | # and that's where the "magic" number of 1.25 come from. "Optimal |
| 117 | # interleave factor" means that increase of interleave factor does |
| 118 | # not improve performance. The formula has proven to reflect reality |
| 119 | # pretty well on Westmere... Sandy Bridge on the other hand can |
| 120 | # execute up to 8 AES instructions at a time, so how does varying |
| 121 | # interleave factor affect the performance? Here is table for ECB |
| 122 | # (numbers are cycles per byte processed with 128-bit key): |
| 123 | # |
| 124 | # instruction interleave factor 3x 6x 8x |
| 125 | # theoretical asymptotic limit 1.67 0.83 0.625 |
| 126 | # measured performance for 8KB block 1.05 0.86 0.84 |
| 127 | # |
| 128 | # "as if" interleave factor 4.7x 5.8x 6.0x |
| 129 | # |
| 130 | # Further data for other parallelizable modes: |
| 131 | # |
| 132 | # CBC decrypt 1.16 0.93 0.93 |
| 133 | # CTR 1.14 0.91 n/a |
| 134 | # |
| 135 | # Well, given 3x column it's probably inappropriate to call the limit |
| 136 | # asymptotic, if it can be surpassed, isn't it? What happens there? |
| 137 | # Rewind to CBC paragraph for the answer. Yes, out-of-order execution |
| 138 | # magic is responsible for this. Processor overlaps not only the |
| 139 | # additional instructions with AES ones, but even AES instuctions |
| 140 | # processing adjacent triplets of independent blocks. In the 6x case |
| 141 | # additional instructions still claim disproportionally small amount |
| 142 | # of additional cycles, but in 8x case number of instructions must be |
| 143 | # a tad too high for out-of-order logic to cope with, and AES unit |
| 144 | # remains underutilized... As you can see 8x interleave is hardly |
| 145 | # justifiable, so there no need to feel bad that 32-bit aesni-x86.pl |
| 146 | # utilizies 6x interleave because of limited register bank capacity. |
| 147 | # |
| 148 | # Higher interleave factors do have negative impact on Westmere |
| 149 | # performance. While for ECB mode it's negligible ~1.5%, other |
| 150 | # parallelizables perform ~5% worse, which is outweighed by ~25% |
| 151 | # improvement on Sandy Bridge. To balance regression on Westmere |
| 152 | # CTR mode was implemented with 6x aesenc interleave factor. |
| 153 | |
| 154 | # April 2011 |
| 155 | # |
| 156 | # Add aesni_xts_[en|de]crypt. Westmere spends 1.33 cycles processing |
| 157 | # one byte out of 8KB with 128-bit key, Sandy Bridge - 0.97. Just like |
| 158 | # in CTR mode AES instruction interleave factor was chosen to be 6x. |
| 159 | |
| 160 | $PREFIX="aesni"; # if $PREFIX is set to "AES", the script |
| 161 | # generates drop-in replacement for |
| 162 | # crypto/aes/asm/aes-x86_64.pl:-) |
| 163 | |
| 164 | $flavour = shift; |
| 165 | $output = shift; |
| 166 | if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } |
| 167 | |
| 168 | $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); |
| 169 | |
| 170 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; |
| 171 | ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or |
| 172 | ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or |
| 173 | die "can't locate x86_64-xlate.pl"; |
| 174 | |
| 175 | open OUT,"| \"$^X\" $xlate $flavour $output"; |
| 176 | *STDOUT=*OUT; |
| 177 | |
| 178 | $movkey = $PREFIX eq "aesni" ? "movups" : "movups"; |
| 179 | @_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order |
| 180 | ("%rdi","%rsi","%rdx","%rcx"); # Unix order |
| 181 | |
| 182 | $code=".text\n"; |
| 183 | |
| 184 | $rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!! |
| 185 | # this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ... |
| 186 | $inp="%rdi"; |
| 187 | $out="%rsi"; |
| 188 | $len="%rdx"; |
| 189 | $key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!! |
| 190 | $ivp="%r8"; # cbc, ctr, ... |
| 191 | |
| 192 | $rnds_="%r10d"; # backup copy for $rounds |
| 193 | $key_="%r11"; # backup copy for $key |
| 194 | |
| 195 | # %xmm register layout |
| 196 | $rndkey0="%xmm0"; $rndkey1="%xmm1"; |
| 197 | $inout0="%xmm2"; $inout1="%xmm3"; |
| 198 | $inout2="%xmm4"; $inout3="%xmm5"; |
| 199 | $inout4="%xmm6"; $inout5="%xmm7"; |
| 200 | $inout6="%xmm8"; $inout7="%xmm9"; |
| 201 | |
| 202 | $in2="%xmm6"; $in1="%xmm7"; # used in CBC decrypt, CTR, ... |
| 203 | $in0="%xmm8"; $iv="%xmm9"; |
| 204 | |
| 205 | # Inline version of internal aesni_[en|de]crypt1. |
| 206 | # |
| 207 | # Why folded loop? Because aes[enc|dec] is slow enough to accommodate |
| 208 | # cycles which take care of loop variables... |
| 209 | { my $sn; |
| 210 | sub aesni_generate1 { |
| 211 | my ($p,$key,$rounds,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout)); |
| 212 | ++$sn; |
| 213 | $code.=<<___; |
| 214 | $movkey ($key),$rndkey0 |
| 215 | $movkey 16($key),$rndkey1 |
| 216 | ___ |
| 217 | $code.=<<___ if (defined($ivec)); |
| 218 | xorps $rndkey0,$ivec |
| 219 | lea 32($key),$key |
| 220 | xorps $ivec,$inout |
| 221 | ___ |
| 222 | $code.=<<___ if (!defined($ivec)); |
| 223 | lea 32($key),$key |
| 224 | xorps $rndkey0,$inout |
| 225 | ___ |
| 226 | $code.=<<___; |
| 227 | .Loop_${p}1_$sn: |
| 228 | aes${p} $rndkey1,$inout |
| 229 | dec $rounds |
| 230 | $movkey ($key),$rndkey1 |
| 231 | lea 16($key),$key |
| 232 | jnz .Loop_${p}1_$sn # loop body is 16 bytes |
| 233 | aes${p}last $rndkey1,$inout |
| 234 | ___ |
| 235 | }} |
| 236 | # void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key); |
| 237 | # |
| 238 | { my ($inp,$out,$key) = @_4args; |
| 239 | |
| 240 | $code.=<<___; |
| 241 | .globl ${PREFIX}_encrypt |
| 242 | .type ${PREFIX}_encrypt,\@abi-omnipotent |
| 243 | .align 16 |
| 244 | ${PREFIX}_encrypt: |
| 245 | movups ($inp),$inout0 # load input |
| 246 | mov 240($key),$rounds # key->rounds |
| 247 | ___ |
| 248 | &aesni_generate1("enc",$key,$rounds); |
| 249 | $code.=<<___; |
| 250 | movups $inout0,($out) # output |
| 251 | ret |
| 252 | .size ${PREFIX}_encrypt,.-${PREFIX}_encrypt |
| 253 | |
| 254 | .globl ${PREFIX}_decrypt |
| 255 | .type ${PREFIX}_decrypt,\@abi-omnipotent |
| 256 | .align 16 |
| 257 | ${PREFIX}_decrypt: |
| 258 | movups ($inp),$inout0 # load input |
| 259 | mov 240($key),$rounds # key->rounds |
| 260 | ___ |
| 261 | &aesni_generate1("dec",$key,$rounds); |
| 262 | $code.=<<___; |
| 263 | movups $inout0,($out) # output |
| 264 | ret |
| 265 | .size ${PREFIX}_decrypt, .-${PREFIX}_decrypt |
| 266 | ___ |
| 267 | } |
| 268 | |
| 269 | # _aesni_[en|de]cryptN are private interfaces, N denotes interleave |
| 270 | # factor. Why 3x subroutine were originally used in loops? Even though |
| 271 | # aes[enc|dec] latency was originally 6, it could be scheduled only |
| 272 | # every *2nd* cycle. Thus 3x interleave was the one providing optimal |
| 273 | # utilization, i.e. when subroutine's throughput is virtually same as |
| 274 | # of non-interleaved subroutine [for number of input blocks up to 3]. |
| 275 | # This is why it makes no sense to implement 2x subroutine. |
| 276 | # aes[enc|dec] latency in next processor generation is 8, but the |
| 277 | # instructions can be scheduled every cycle. Optimal interleave for |
| 278 | # new processor is therefore 8x... |
| 279 | sub aesni_generate3 { |
| 280 | my $dir=shift; |
| 281 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 282 | # preserved. $inout[0-2] is cipher/clear text... |
| 283 | $code.=<<___; |
| 284 | .type _aesni_${dir}rypt3,\@abi-omnipotent |
| 285 | .align 16 |
| 286 | _aesni_${dir}rypt3: |
| 287 | $movkey ($key),$rndkey0 |
| 288 | shr \$1,$rounds |
| 289 | $movkey 16($key),$rndkey1 |
| 290 | lea 32($key),$key |
| 291 | xorps $rndkey0,$inout0 |
| 292 | xorps $rndkey0,$inout1 |
| 293 | xorps $rndkey0,$inout2 |
| 294 | $movkey ($key),$rndkey0 |
| 295 | |
| 296 | .L${dir}_loop3: |
| 297 | aes${dir} $rndkey1,$inout0 |
| 298 | aes${dir} $rndkey1,$inout1 |
| 299 | dec $rounds |
| 300 | aes${dir} $rndkey1,$inout2 |
| 301 | $movkey 16($key),$rndkey1 |
| 302 | aes${dir} $rndkey0,$inout0 |
| 303 | aes${dir} $rndkey0,$inout1 |
| 304 | lea 32($key),$key |
| 305 | aes${dir} $rndkey0,$inout2 |
| 306 | $movkey ($key),$rndkey0 |
| 307 | jnz .L${dir}_loop3 |
| 308 | |
| 309 | aes${dir} $rndkey1,$inout0 |
| 310 | aes${dir} $rndkey1,$inout1 |
| 311 | aes${dir} $rndkey1,$inout2 |
| 312 | aes${dir}last $rndkey0,$inout0 |
| 313 | aes${dir}last $rndkey0,$inout1 |
| 314 | aes${dir}last $rndkey0,$inout2 |
| 315 | ret |
| 316 | .size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3 |
| 317 | ___ |
| 318 | } |
| 319 | # 4x interleave is implemented to improve small block performance, |
| 320 | # most notably [and naturally] 4 block by ~30%. One can argue that one |
| 321 | # should have implemented 5x as well, but improvement would be <20%, |
| 322 | # so it's not worth it... |
| 323 | sub aesni_generate4 { |
| 324 | my $dir=shift; |
| 325 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 326 | # preserved. $inout[0-3] is cipher/clear text... |
| 327 | $code.=<<___; |
| 328 | .type _aesni_${dir}rypt4,\@abi-omnipotent |
| 329 | .align 16 |
| 330 | _aesni_${dir}rypt4: |
| 331 | $movkey ($key),$rndkey0 |
| 332 | shr \$1,$rounds |
| 333 | $movkey 16($key),$rndkey1 |
| 334 | lea 32($key),$key |
| 335 | xorps $rndkey0,$inout0 |
| 336 | xorps $rndkey0,$inout1 |
| 337 | xorps $rndkey0,$inout2 |
| 338 | xorps $rndkey0,$inout3 |
| 339 | $movkey ($key),$rndkey0 |
| 340 | |
| 341 | .L${dir}_loop4: |
| 342 | aes${dir} $rndkey1,$inout0 |
| 343 | aes${dir} $rndkey1,$inout1 |
| 344 | dec $rounds |
| 345 | aes${dir} $rndkey1,$inout2 |
| 346 | aes${dir} $rndkey1,$inout3 |
| 347 | $movkey 16($key),$rndkey1 |
| 348 | aes${dir} $rndkey0,$inout0 |
| 349 | aes${dir} $rndkey0,$inout1 |
| 350 | lea 32($key),$key |
| 351 | aes${dir} $rndkey0,$inout2 |
| 352 | aes${dir} $rndkey0,$inout3 |
| 353 | $movkey ($key),$rndkey0 |
| 354 | jnz .L${dir}_loop4 |
| 355 | |
| 356 | aes${dir} $rndkey1,$inout0 |
| 357 | aes${dir} $rndkey1,$inout1 |
| 358 | aes${dir} $rndkey1,$inout2 |
| 359 | aes${dir} $rndkey1,$inout3 |
| 360 | aes${dir}last $rndkey0,$inout0 |
| 361 | aes${dir}last $rndkey0,$inout1 |
| 362 | aes${dir}last $rndkey0,$inout2 |
| 363 | aes${dir}last $rndkey0,$inout3 |
| 364 | ret |
| 365 | .size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4 |
| 366 | ___ |
| 367 | } |
| 368 | sub aesni_generate6 { |
| 369 | my $dir=shift; |
| 370 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 371 | # preserved. $inout[0-5] is cipher/clear text... |
| 372 | $code.=<<___; |
| 373 | .type _aesni_${dir}rypt6,\@abi-omnipotent |
| 374 | .align 16 |
| 375 | _aesni_${dir}rypt6: |
| 376 | $movkey ($key),$rndkey0 |
| 377 | shr \$1,$rounds |
| 378 | $movkey 16($key),$rndkey1 |
| 379 | lea 32($key),$key |
| 380 | xorps $rndkey0,$inout0 |
| 381 | pxor $rndkey0,$inout1 |
| 382 | aes${dir} $rndkey1,$inout0 |
| 383 | pxor $rndkey0,$inout2 |
| 384 | aes${dir} $rndkey1,$inout1 |
| 385 | pxor $rndkey0,$inout3 |
| 386 | aes${dir} $rndkey1,$inout2 |
| 387 | pxor $rndkey0,$inout4 |
| 388 | aes${dir} $rndkey1,$inout3 |
| 389 | pxor $rndkey0,$inout5 |
| 390 | dec $rounds |
| 391 | aes${dir} $rndkey1,$inout4 |
| 392 | $movkey ($key),$rndkey0 |
| 393 | aes${dir} $rndkey1,$inout5 |
| 394 | jmp .L${dir}_loop6_enter |
| 395 | .align 16 |
| 396 | .L${dir}_loop6: |
| 397 | aes${dir} $rndkey1,$inout0 |
| 398 | aes${dir} $rndkey1,$inout1 |
| 399 | dec $rounds |
| 400 | aes${dir} $rndkey1,$inout2 |
| 401 | aes${dir} $rndkey1,$inout3 |
| 402 | aes${dir} $rndkey1,$inout4 |
| 403 | aes${dir} $rndkey1,$inout5 |
| 404 | .L${dir}_loop6_enter: # happens to be 16-byte aligned |
| 405 | $movkey 16($key),$rndkey1 |
| 406 | aes${dir} $rndkey0,$inout0 |
| 407 | aes${dir} $rndkey0,$inout1 |
| 408 | lea 32($key),$key |
| 409 | aes${dir} $rndkey0,$inout2 |
| 410 | aes${dir} $rndkey0,$inout3 |
| 411 | aes${dir} $rndkey0,$inout4 |
| 412 | aes${dir} $rndkey0,$inout5 |
| 413 | $movkey ($key),$rndkey0 |
| 414 | jnz .L${dir}_loop6 |
| 415 | |
| 416 | aes${dir} $rndkey1,$inout0 |
| 417 | aes${dir} $rndkey1,$inout1 |
| 418 | aes${dir} $rndkey1,$inout2 |
| 419 | aes${dir} $rndkey1,$inout3 |
| 420 | aes${dir} $rndkey1,$inout4 |
| 421 | aes${dir} $rndkey1,$inout5 |
| 422 | aes${dir}last $rndkey0,$inout0 |
| 423 | aes${dir}last $rndkey0,$inout1 |
| 424 | aes${dir}last $rndkey0,$inout2 |
| 425 | aes${dir}last $rndkey0,$inout3 |
| 426 | aes${dir}last $rndkey0,$inout4 |
| 427 | aes${dir}last $rndkey0,$inout5 |
| 428 | ret |
| 429 | .size _aesni_${dir}rypt6,.-_aesni_${dir}rypt6 |
| 430 | ___ |
| 431 | } |
| 432 | sub aesni_generate8 { |
| 433 | my $dir=shift; |
| 434 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 435 | # preserved. $inout[0-7] is cipher/clear text... |
| 436 | $code.=<<___; |
| 437 | .type _aesni_${dir}rypt8,\@abi-omnipotent |
| 438 | .align 16 |
| 439 | _aesni_${dir}rypt8: |
| 440 | $movkey ($key),$rndkey0 |
| 441 | shr \$1,$rounds |
| 442 | $movkey 16($key),$rndkey1 |
| 443 | lea 32($key),$key |
| 444 | xorps $rndkey0,$inout0 |
| 445 | xorps $rndkey0,$inout1 |
| 446 | aes${dir} $rndkey1,$inout0 |
| 447 | pxor $rndkey0,$inout2 |
| 448 | aes${dir} $rndkey1,$inout1 |
| 449 | pxor $rndkey0,$inout3 |
| 450 | aes${dir} $rndkey1,$inout2 |
| 451 | pxor $rndkey0,$inout4 |
| 452 | aes${dir} $rndkey1,$inout3 |
| 453 | pxor $rndkey0,$inout5 |
| 454 | dec $rounds |
| 455 | aes${dir} $rndkey1,$inout4 |
| 456 | pxor $rndkey0,$inout6 |
| 457 | aes${dir} $rndkey1,$inout5 |
| 458 | pxor $rndkey0,$inout7 |
| 459 | $movkey ($key),$rndkey0 |
| 460 | aes${dir} $rndkey1,$inout6 |
| 461 | aes${dir} $rndkey1,$inout7 |
| 462 | $movkey 16($key),$rndkey1 |
| 463 | jmp .L${dir}_loop8_enter |
| 464 | .align 16 |
| 465 | .L${dir}_loop8: |
| 466 | aes${dir} $rndkey1,$inout0 |
| 467 | aes${dir} $rndkey1,$inout1 |
| 468 | dec $rounds |
| 469 | aes${dir} $rndkey1,$inout2 |
| 470 | aes${dir} $rndkey1,$inout3 |
| 471 | aes${dir} $rndkey1,$inout4 |
| 472 | aes${dir} $rndkey1,$inout5 |
| 473 | aes${dir} $rndkey1,$inout6 |
| 474 | aes${dir} $rndkey1,$inout7 |
| 475 | $movkey 16($key),$rndkey1 |
| 476 | .L${dir}_loop8_enter: # happens to be 16-byte aligned |
| 477 | aes${dir} $rndkey0,$inout0 |
| 478 | aes${dir} $rndkey0,$inout1 |
| 479 | lea 32($key),$key |
| 480 | aes${dir} $rndkey0,$inout2 |
| 481 | aes${dir} $rndkey0,$inout3 |
| 482 | aes${dir} $rndkey0,$inout4 |
| 483 | aes${dir} $rndkey0,$inout5 |
| 484 | aes${dir} $rndkey0,$inout6 |
| 485 | aes${dir} $rndkey0,$inout7 |
| 486 | $movkey ($key),$rndkey0 |
| 487 | jnz .L${dir}_loop8 |
| 488 | |
| 489 | aes${dir} $rndkey1,$inout0 |
| 490 | aes${dir} $rndkey1,$inout1 |
| 491 | aes${dir} $rndkey1,$inout2 |
| 492 | aes${dir} $rndkey1,$inout3 |
| 493 | aes${dir} $rndkey1,$inout4 |
| 494 | aes${dir} $rndkey1,$inout5 |
| 495 | aes${dir} $rndkey1,$inout6 |
| 496 | aes${dir} $rndkey1,$inout7 |
| 497 | aes${dir}last $rndkey0,$inout0 |
| 498 | aes${dir}last $rndkey0,$inout1 |
| 499 | aes${dir}last $rndkey0,$inout2 |
| 500 | aes${dir}last $rndkey0,$inout3 |
| 501 | aes${dir}last $rndkey0,$inout4 |
| 502 | aes${dir}last $rndkey0,$inout5 |
| 503 | aes${dir}last $rndkey0,$inout6 |
| 504 | aes${dir}last $rndkey0,$inout7 |
| 505 | ret |
| 506 | .size _aesni_${dir}rypt8,.-_aesni_${dir}rypt8 |
| 507 | ___ |
| 508 | } |
| 509 | &aesni_generate3("enc") if ($PREFIX eq "aesni"); |
| 510 | &aesni_generate3("dec"); |
| 511 | &aesni_generate4("enc") if ($PREFIX eq "aesni"); |
| 512 | &aesni_generate4("dec"); |
| 513 | &aesni_generate6("enc") if ($PREFIX eq "aesni"); |
| 514 | &aesni_generate6("dec"); |
| 515 | &aesni_generate8("enc") if ($PREFIX eq "aesni"); |
| 516 | &aesni_generate8("dec"); |
| 517 | |
| 518 | if ($PREFIX eq "aesni") { |
| 519 | ######################################################################## |
| 520 | # void aesni_ecb_encrypt (const void *in, void *out, |
| 521 | # size_t length, const AES_KEY *key, |
| 522 | # int enc); |
| 523 | $code.=<<___; |
| 524 | .globl aesni_ecb_encrypt |
| 525 | .type aesni_ecb_encrypt,\@function,5 |
| 526 | .align 16 |
| 527 | aesni_ecb_encrypt: |
| 528 | and \$-16,$len |
| 529 | jz .Lecb_ret |
| 530 | |
| 531 | mov 240($key),$rounds # key->rounds |
| 532 | $movkey ($key),$rndkey0 |
| 533 | mov $key,$key_ # backup $key |
| 534 | mov $rounds,$rnds_ # backup $rounds |
| 535 | test %r8d,%r8d # 5th argument |
| 536 | jz .Lecb_decrypt |
| 537 | #--------------------------- ECB ENCRYPT ------------------------------# |
| 538 | cmp \$0x80,$len |
| 539 | jb .Lecb_enc_tail |
| 540 | |
| 541 | movdqu ($inp),$inout0 |
| 542 | movdqu 0x10($inp),$inout1 |
| 543 | movdqu 0x20($inp),$inout2 |
| 544 | movdqu 0x30($inp),$inout3 |
| 545 | movdqu 0x40($inp),$inout4 |
| 546 | movdqu 0x50($inp),$inout5 |
| 547 | movdqu 0x60($inp),$inout6 |
| 548 | movdqu 0x70($inp),$inout7 |
| 549 | lea 0x80($inp),$inp |
| 550 | sub \$0x80,$len |
| 551 | jmp .Lecb_enc_loop8_enter |
| 552 | .align 16 |
| 553 | .Lecb_enc_loop8: |
| 554 | movups $inout0,($out) |
| 555 | mov $key_,$key # restore $key |
| 556 | movdqu ($inp),$inout0 |
| 557 | mov $rnds_,$rounds # restore $rounds |
| 558 | movups $inout1,0x10($out) |
| 559 | movdqu 0x10($inp),$inout1 |
| 560 | movups $inout2,0x20($out) |
| 561 | movdqu 0x20($inp),$inout2 |
| 562 | movups $inout3,0x30($out) |
| 563 | movdqu 0x30($inp),$inout3 |
| 564 | movups $inout4,0x40($out) |
| 565 | movdqu 0x40($inp),$inout4 |
| 566 | movups $inout5,0x50($out) |
| 567 | movdqu 0x50($inp),$inout5 |
| 568 | movups $inout6,0x60($out) |
| 569 | movdqu 0x60($inp),$inout6 |
| 570 | movups $inout7,0x70($out) |
| 571 | lea 0x80($out),$out |
| 572 | movdqu 0x70($inp),$inout7 |
| 573 | lea 0x80($inp),$inp |
| 574 | .Lecb_enc_loop8_enter: |
| 575 | |
| 576 | call _aesni_encrypt8 |
| 577 | |
| 578 | sub \$0x80,$len |
| 579 | jnc .Lecb_enc_loop8 |
| 580 | |
| 581 | movups $inout0,($out) |
| 582 | mov $key_,$key # restore $key |
| 583 | movups $inout1,0x10($out) |
| 584 | mov $rnds_,$rounds # restore $rounds |
| 585 | movups $inout2,0x20($out) |
| 586 | movups $inout3,0x30($out) |
| 587 | movups $inout4,0x40($out) |
| 588 | movups $inout5,0x50($out) |
| 589 | movups $inout6,0x60($out) |
| 590 | movups $inout7,0x70($out) |
| 591 | lea 0x80($out),$out |
| 592 | add \$0x80,$len |
| 593 | jz .Lecb_ret |
| 594 | |
| 595 | .Lecb_enc_tail: |
| 596 | movups ($inp),$inout0 |
| 597 | cmp \$0x20,$len |
| 598 | jb .Lecb_enc_one |
| 599 | movups 0x10($inp),$inout1 |
| 600 | je .Lecb_enc_two |
| 601 | movups 0x20($inp),$inout2 |
| 602 | cmp \$0x40,$len |
| 603 | jb .Lecb_enc_three |
| 604 | movups 0x30($inp),$inout3 |
| 605 | je .Lecb_enc_four |
| 606 | movups 0x40($inp),$inout4 |
| 607 | cmp \$0x60,$len |
| 608 | jb .Lecb_enc_five |
| 609 | movups 0x50($inp),$inout5 |
| 610 | je .Lecb_enc_six |
| 611 | movdqu 0x60($inp),$inout6 |
| 612 | call _aesni_encrypt8 |
| 613 | movups $inout0,($out) |
| 614 | movups $inout1,0x10($out) |
| 615 | movups $inout2,0x20($out) |
| 616 | movups $inout3,0x30($out) |
| 617 | movups $inout4,0x40($out) |
| 618 | movups $inout5,0x50($out) |
| 619 | movups $inout6,0x60($out) |
| 620 | jmp .Lecb_ret |
| 621 | .align 16 |
| 622 | .Lecb_enc_one: |
| 623 | ___ |
| 624 | &aesni_generate1("enc",$key,$rounds); |
| 625 | $code.=<<___; |
| 626 | movups $inout0,($out) |
| 627 | jmp .Lecb_ret |
| 628 | .align 16 |
| 629 | .Lecb_enc_two: |
| 630 | xorps $inout2,$inout2 |
| 631 | call _aesni_encrypt3 |
| 632 | movups $inout0,($out) |
| 633 | movups $inout1,0x10($out) |
| 634 | jmp .Lecb_ret |
| 635 | .align 16 |
| 636 | .Lecb_enc_three: |
| 637 | call _aesni_encrypt3 |
| 638 | movups $inout0,($out) |
| 639 | movups $inout1,0x10($out) |
| 640 | movups $inout2,0x20($out) |
| 641 | jmp .Lecb_ret |
| 642 | .align 16 |
| 643 | .Lecb_enc_four: |
| 644 | call _aesni_encrypt4 |
| 645 | movups $inout0,($out) |
| 646 | movups $inout1,0x10($out) |
| 647 | movups $inout2,0x20($out) |
| 648 | movups $inout3,0x30($out) |
| 649 | jmp .Lecb_ret |
| 650 | .align 16 |
| 651 | .Lecb_enc_five: |
| 652 | xorps $inout5,$inout5 |
| 653 | call _aesni_encrypt6 |
| 654 | movups $inout0,($out) |
| 655 | movups $inout1,0x10($out) |
| 656 | movups $inout2,0x20($out) |
| 657 | movups $inout3,0x30($out) |
| 658 | movups $inout4,0x40($out) |
| 659 | jmp .Lecb_ret |
| 660 | .align 16 |
| 661 | .Lecb_enc_six: |
| 662 | call _aesni_encrypt6 |
| 663 | movups $inout0,($out) |
| 664 | movups $inout1,0x10($out) |
| 665 | movups $inout2,0x20($out) |
| 666 | movups $inout3,0x30($out) |
| 667 | movups $inout4,0x40($out) |
| 668 | movups $inout5,0x50($out) |
| 669 | jmp .Lecb_ret |
| 670 | #--------------------------- ECB DECRYPT ------------------------------# |
| 671 | .align 16 |
| 672 | .Lecb_decrypt: |
| 673 | cmp \$0x80,$len |
| 674 | jb .Lecb_dec_tail |
| 675 | |
| 676 | movdqu ($inp),$inout0 |
| 677 | movdqu 0x10($inp),$inout1 |
| 678 | movdqu 0x20($inp),$inout2 |
| 679 | movdqu 0x30($inp),$inout3 |
| 680 | movdqu 0x40($inp),$inout4 |
| 681 | movdqu 0x50($inp),$inout5 |
| 682 | movdqu 0x60($inp),$inout6 |
| 683 | movdqu 0x70($inp),$inout7 |
| 684 | lea 0x80($inp),$inp |
| 685 | sub \$0x80,$len |
| 686 | jmp .Lecb_dec_loop8_enter |
| 687 | .align 16 |
| 688 | .Lecb_dec_loop8: |
| 689 | movups $inout0,($out) |
| 690 | mov $key_,$key # restore $key |
| 691 | movdqu ($inp),$inout0 |
| 692 | mov $rnds_,$rounds # restore $rounds |
| 693 | movups $inout1,0x10($out) |
| 694 | movdqu 0x10($inp),$inout1 |
| 695 | movups $inout2,0x20($out) |
| 696 | movdqu 0x20($inp),$inout2 |
| 697 | movups $inout3,0x30($out) |
| 698 | movdqu 0x30($inp),$inout3 |
| 699 | movups $inout4,0x40($out) |
| 700 | movdqu 0x40($inp),$inout4 |
| 701 | movups $inout5,0x50($out) |
| 702 | movdqu 0x50($inp),$inout5 |
| 703 | movups $inout6,0x60($out) |
| 704 | movdqu 0x60($inp),$inout6 |
| 705 | movups $inout7,0x70($out) |
| 706 | lea 0x80($out),$out |
| 707 | movdqu 0x70($inp),$inout7 |
| 708 | lea 0x80($inp),$inp |
| 709 | .Lecb_dec_loop8_enter: |
| 710 | |
| 711 | call _aesni_decrypt8 |
| 712 | |
| 713 | $movkey ($key_),$rndkey0 |
| 714 | sub \$0x80,$len |
| 715 | jnc .Lecb_dec_loop8 |
| 716 | |
| 717 | movups $inout0,($out) |
| 718 | mov $key_,$key # restore $key |
| 719 | movups $inout1,0x10($out) |
| 720 | mov $rnds_,$rounds # restore $rounds |
| 721 | movups $inout2,0x20($out) |
| 722 | movups $inout3,0x30($out) |
| 723 | movups $inout4,0x40($out) |
| 724 | movups $inout5,0x50($out) |
| 725 | movups $inout6,0x60($out) |
| 726 | movups $inout7,0x70($out) |
| 727 | lea 0x80($out),$out |
| 728 | add \$0x80,$len |
| 729 | jz .Lecb_ret |
| 730 | |
| 731 | .Lecb_dec_tail: |
| 732 | movups ($inp),$inout0 |
| 733 | cmp \$0x20,$len |
| 734 | jb .Lecb_dec_one |
| 735 | movups 0x10($inp),$inout1 |
| 736 | je .Lecb_dec_two |
| 737 | movups 0x20($inp),$inout2 |
| 738 | cmp \$0x40,$len |
| 739 | jb .Lecb_dec_three |
| 740 | movups 0x30($inp),$inout3 |
| 741 | je .Lecb_dec_four |
| 742 | movups 0x40($inp),$inout4 |
| 743 | cmp \$0x60,$len |
| 744 | jb .Lecb_dec_five |
| 745 | movups 0x50($inp),$inout5 |
| 746 | je .Lecb_dec_six |
| 747 | movups 0x60($inp),$inout6 |
| 748 | $movkey ($key),$rndkey0 |
| 749 | call _aesni_decrypt8 |
| 750 | movups $inout0,($out) |
| 751 | movups $inout1,0x10($out) |
| 752 | movups $inout2,0x20($out) |
| 753 | movups $inout3,0x30($out) |
| 754 | movups $inout4,0x40($out) |
| 755 | movups $inout5,0x50($out) |
| 756 | movups $inout6,0x60($out) |
| 757 | jmp .Lecb_ret |
| 758 | .align 16 |
| 759 | .Lecb_dec_one: |
| 760 | ___ |
| 761 | &aesni_generate1("dec",$key,$rounds); |
| 762 | $code.=<<___; |
| 763 | movups $inout0,($out) |
| 764 | jmp .Lecb_ret |
| 765 | .align 16 |
| 766 | .Lecb_dec_two: |
| 767 | xorps $inout2,$inout2 |
| 768 | call _aesni_decrypt3 |
| 769 | movups $inout0,($out) |
| 770 | movups $inout1,0x10($out) |
| 771 | jmp .Lecb_ret |
| 772 | .align 16 |
| 773 | .Lecb_dec_three: |
| 774 | call _aesni_decrypt3 |
| 775 | movups $inout0,($out) |
| 776 | movups $inout1,0x10($out) |
| 777 | movups $inout2,0x20($out) |
| 778 | jmp .Lecb_ret |
| 779 | .align 16 |
| 780 | .Lecb_dec_four: |
| 781 | call _aesni_decrypt4 |
| 782 | movups $inout0,($out) |
| 783 | movups $inout1,0x10($out) |
| 784 | movups $inout2,0x20($out) |
| 785 | movups $inout3,0x30($out) |
| 786 | jmp .Lecb_ret |
| 787 | .align 16 |
| 788 | .Lecb_dec_five: |
| 789 | xorps $inout5,$inout5 |
| 790 | call _aesni_decrypt6 |
| 791 | movups $inout0,($out) |
| 792 | movups $inout1,0x10($out) |
| 793 | movups $inout2,0x20($out) |
| 794 | movups $inout3,0x30($out) |
| 795 | movups $inout4,0x40($out) |
| 796 | jmp .Lecb_ret |
| 797 | .align 16 |
| 798 | .Lecb_dec_six: |
| 799 | call _aesni_decrypt6 |
| 800 | movups $inout0,($out) |
| 801 | movups $inout1,0x10($out) |
| 802 | movups $inout2,0x20($out) |
| 803 | movups $inout3,0x30($out) |
| 804 | movups $inout4,0x40($out) |
| 805 | movups $inout5,0x50($out) |
| 806 | |
| 807 | .Lecb_ret: |
| 808 | ret |
| 809 | .size aesni_ecb_encrypt,.-aesni_ecb_encrypt |
| 810 | ___ |
| 811 | |
| 812 | { |
| 813 | ###################################################################### |
| 814 | # void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out, |
| 815 | # size_t blocks, const AES_KEY *key, |
| 816 | # const char *ivec,char *cmac); |
| 817 | # |
| 818 | # Handles only complete blocks, operates on 64-bit counter and |
| 819 | # does not update *ivec! Nor does it finalize CMAC value |
| 820 | # (see engine/eng_aesni.c for details) |
| 821 | # |
| 822 | { |
| 823 | my $cmac="%r9"; # 6th argument |
| 824 | |
| 825 | my $increment="%xmm6"; |
| 826 | my $bswap_mask="%xmm7"; |
| 827 | |
| 828 | $code.=<<___; |
| 829 | .globl aesni_ccm64_encrypt_blocks |
| 830 | .type aesni_ccm64_encrypt_blocks,\@function,6 |
| 831 | .align 16 |
| 832 | aesni_ccm64_encrypt_blocks: |
| 833 | ___ |
| 834 | $code.=<<___ if ($win64); |
| 835 | lea -0x58(%rsp),%rsp |
| 836 | movaps %xmm6,(%rsp) |
| 837 | movaps %xmm7,0x10(%rsp) |
| 838 | movaps %xmm8,0x20(%rsp) |
| 839 | movaps %xmm9,0x30(%rsp) |
| 840 | .Lccm64_enc_body: |
| 841 | ___ |
| 842 | $code.=<<___; |
| 843 | mov 240($key),$rounds # key->rounds |
| 844 | movdqu ($ivp),$iv |
| 845 | movdqa .Lincrement64(%rip),$increment |
| 846 | movdqa .Lbswap_mask(%rip),$bswap_mask |
| 847 | |
| 848 | shr \$1,$rounds |
| 849 | lea 0($key),$key_ |
| 850 | movdqu ($cmac),$inout1 |
| 851 | movdqa $iv,$inout0 |
| 852 | mov $rounds,$rnds_ |
| 853 | pshufb $bswap_mask,$iv |
| 854 | jmp .Lccm64_enc_outer |
| 855 | .align 16 |
| 856 | .Lccm64_enc_outer: |
| 857 | $movkey ($key_),$rndkey0 |
| 858 | mov $rnds_,$rounds |
| 859 | movups ($inp),$in0 # load inp |
| 860 | |
| 861 | xorps $rndkey0,$inout0 # counter |
| 862 | $movkey 16($key_),$rndkey1 |
| 863 | xorps $in0,$rndkey0 |
| 864 | lea 32($key_),$key |
| 865 | xorps $rndkey0,$inout1 # cmac^=inp |
| 866 | $movkey ($key),$rndkey0 |
| 867 | |
| 868 | .Lccm64_enc2_loop: |
| 869 | aesenc $rndkey1,$inout0 |
| 870 | dec $rounds |
| 871 | aesenc $rndkey1,$inout1 |
| 872 | $movkey 16($key),$rndkey1 |
| 873 | aesenc $rndkey0,$inout0 |
| 874 | lea 32($key),$key |
| 875 | aesenc $rndkey0,$inout1 |
| 876 | $movkey 0($key),$rndkey0 |
| 877 | jnz .Lccm64_enc2_loop |
| 878 | aesenc $rndkey1,$inout0 |
| 879 | aesenc $rndkey1,$inout1 |
| 880 | paddq $increment,$iv |
| 881 | aesenclast $rndkey0,$inout0 |
| 882 | aesenclast $rndkey0,$inout1 |
| 883 | |
| 884 | dec $len |
| 885 | lea 16($inp),$inp |
| 886 | xorps $inout0,$in0 # inp ^= E(iv) |
| 887 | movdqa $iv,$inout0 |
| 888 | movups $in0,($out) # save output |
| 889 | lea 16($out),$out |
| 890 | pshufb $bswap_mask,$inout0 |
| 891 | jnz .Lccm64_enc_outer |
| 892 | |
| 893 | movups $inout1,($cmac) |
| 894 | ___ |
| 895 | $code.=<<___ if ($win64); |
| 896 | movaps (%rsp),%xmm6 |
| 897 | movaps 0x10(%rsp),%xmm7 |
| 898 | movaps 0x20(%rsp),%xmm8 |
| 899 | movaps 0x30(%rsp),%xmm9 |
| 900 | lea 0x58(%rsp),%rsp |
| 901 | .Lccm64_enc_ret: |
| 902 | ___ |
| 903 | $code.=<<___; |
| 904 | ret |
| 905 | .size aesni_ccm64_encrypt_blocks,.-aesni_ccm64_encrypt_blocks |
| 906 | ___ |
| 907 | ###################################################################### |
| 908 | $code.=<<___; |
| 909 | .globl aesni_ccm64_decrypt_blocks |
| 910 | .type aesni_ccm64_decrypt_blocks,\@function,6 |
| 911 | .align 16 |
| 912 | aesni_ccm64_decrypt_blocks: |
| 913 | ___ |
| 914 | $code.=<<___ if ($win64); |
| 915 | lea -0x58(%rsp),%rsp |
| 916 | movaps %xmm6,(%rsp) |
| 917 | movaps %xmm7,0x10(%rsp) |
| 918 | movaps %xmm8,0x20(%rsp) |
| 919 | movaps %xmm9,0x30(%rsp) |
| 920 | .Lccm64_dec_body: |
| 921 | ___ |
| 922 | $code.=<<___; |
| 923 | mov 240($key),$rounds # key->rounds |
| 924 | movups ($ivp),$iv |
| 925 | movdqu ($cmac),$inout1 |
| 926 | movdqa .Lincrement64(%rip),$increment |
| 927 | movdqa .Lbswap_mask(%rip),$bswap_mask |
| 928 | |
| 929 | movaps $iv,$inout0 |
| 930 | mov $rounds,$rnds_ |
| 931 | mov $key,$key_ |
| 932 | pshufb $bswap_mask,$iv |
| 933 | ___ |
| 934 | &aesni_generate1("enc",$key,$rounds); |
| 935 | $code.=<<___; |
| 936 | movups ($inp),$in0 # load inp |
| 937 | paddq $increment,$iv |
| 938 | lea 16($inp),$inp |
| 939 | jmp .Lccm64_dec_outer |
| 940 | .align 16 |
| 941 | .Lccm64_dec_outer: |
| 942 | xorps $inout0,$in0 # inp ^= E(iv) |
| 943 | movdqa $iv,$inout0 |
| 944 | mov $rnds_,$rounds |
| 945 | movups $in0,($out) # save output |
| 946 | lea 16($out),$out |
| 947 | pshufb $bswap_mask,$inout0 |
| 948 | |
| 949 | sub \$1,$len |
| 950 | jz .Lccm64_dec_break |
| 951 | |
| 952 | $movkey ($key_),$rndkey0 |
| 953 | shr \$1,$rounds |
| 954 | $movkey 16($key_),$rndkey1 |
| 955 | xorps $rndkey0,$in0 |
| 956 | lea 32($key_),$key |
| 957 | xorps $rndkey0,$inout0 |
| 958 | xorps $in0,$inout1 # cmac^=out |
| 959 | $movkey ($key),$rndkey0 |
| 960 | |
| 961 | .Lccm64_dec2_loop: |
| 962 | aesenc $rndkey1,$inout0 |
| 963 | dec $rounds |
| 964 | aesenc $rndkey1,$inout1 |
| 965 | $movkey 16($key),$rndkey1 |
| 966 | aesenc $rndkey0,$inout0 |
| 967 | lea 32($key),$key |
| 968 | aesenc $rndkey0,$inout1 |
| 969 | $movkey 0($key),$rndkey0 |
| 970 | jnz .Lccm64_dec2_loop |
| 971 | movups ($inp),$in0 # load inp |
| 972 | paddq $increment,$iv |
| 973 | aesenc $rndkey1,$inout0 |
| 974 | aesenc $rndkey1,$inout1 |
| 975 | lea 16($inp),$inp |
| 976 | aesenclast $rndkey0,$inout0 |
| 977 | aesenclast $rndkey0,$inout1 |
| 978 | jmp .Lccm64_dec_outer |
| 979 | |
| 980 | .align 16 |
| 981 | .Lccm64_dec_break: |
| 982 | #xorps $in0,$inout1 # cmac^=out |
| 983 | ___ |
| 984 | &aesni_generate1("enc",$key_,$rounds,$inout1,$in0); |
| 985 | $code.=<<___; |
| 986 | movups $inout1,($cmac) |
| 987 | ___ |
| 988 | $code.=<<___ if ($win64); |
| 989 | movaps (%rsp),%xmm6 |
| 990 | movaps 0x10(%rsp),%xmm7 |
| 991 | movaps 0x20(%rsp),%xmm8 |
| 992 | movaps 0x30(%rsp),%xmm9 |
| 993 | lea 0x58(%rsp),%rsp |
| 994 | .Lccm64_dec_ret: |
| 995 | ___ |
| 996 | $code.=<<___; |
| 997 | ret |
| 998 | .size aesni_ccm64_decrypt_blocks,.-aesni_ccm64_decrypt_blocks |
| 999 | ___ |
| 1000 | } |
| 1001 | ###################################################################### |
| 1002 | # void aesni_ctr32_encrypt_blocks (const void *in, void *out, |
| 1003 | # size_t blocks, const AES_KEY *key, |
| 1004 | # const char *ivec); |
| 1005 | # |
| 1006 | # Handles only complete blocks, operates on 32-bit counter and |
| 1007 | # does not update *ivec! (see engine/eng_aesni.c for details) |
| 1008 | # |
| 1009 | { |
| 1010 | my $reserved = $win64?0:-0x28; |
| 1011 | my ($in0,$in1,$in2,$in3)=map("%xmm$_",(8..11)); |
| 1012 | my ($iv0,$iv1,$ivec)=("%xmm12","%xmm13","%xmm14"); |
| 1013 | my $bswap_mask="%xmm15"; |
| 1014 | |
| 1015 | $code.=<<___; |
| 1016 | .globl aesni_ctr32_encrypt_blocks |
| 1017 | .type aesni_ctr32_encrypt_blocks,\@function,5 |
| 1018 | .align 16 |
| 1019 | aesni_ctr32_encrypt_blocks: |
| 1020 | ___ |
| 1021 | $code.=<<___ if ($win64); |
| 1022 | lea -0xc8(%rsp),%rsp |
| 1023 | movaps %xmm6,0x20(%rsp) |
| 1024 | movaps %xmm7,0x30(%rsp) |
| 1025 | movaps %xmm8,0x40(%rsp) |
| 1026 | movaps %xmm9,0x50(%rsp) |
| 1027 | movaps %xmm10,0x60(%rsp) |
| 1028 | movaps %xmm11,0x70(%rsp) |
| 1029 | movaps %xmm12,0x80(%rsp) |
| 1030 | movaps %xmm13,0x90(%rsp) |
| 1031 | movaps %xmm14,0xa0(%rsp) |
| 1032 | movaps %xmm15,0xb0(%rsp) |
| 1033 | .Lctr32_body: |
| 1034 | ___ |
| 1035 | $code.=<<___; |
| 1036 | cmp \$1,$len |
| 1037 | je .Lctr32_one_shortcut |
| 1038 | |
| 1039 | movdqu ($ivp),$ivec |
| 1040 | movdqa .Lbswap_mask(%rip),$bswap_mask |
| 1041 | xor $rounds,$rounds |
| 1042 | pextrd \$3,$ivec,$rnds_ # pull 32-bit counter |
| 1043 | pinsrd \$3,$rounds,$ivec # wipe 32-bit counter |
| 1044 | |
| 1045 | mov 240($key),$rounds # key->rounds |
| 1046 | bswap $rnds_ |
| 1047 | pxor $iv0,$iv0 # vector of 3 32-bit counters |
| 1048 | pxor $iv1,$iv1 # vector of 3 32-bit counters |
| 1049 | pinsrd \$0,$rnds_,$iv0 |
| 1050 | lea 3($rnds_),$key_ |
| 1051 | pinsrd \$0,$key_,$iv1 |
| 1052 | inc $rnds_ |
| 1053 | pinsrd \$1,$rnds_,$iv0 |
| 1054 | inc $key_ |
| 1055 | pinsrd \$1,$key_,$iv1 |
| 1056 | inc $rnds_ |
| 1057 | pinsrd \$2,$rnds_,$iv0 |
| 1058 | inc $key_ |
| 1059 | pinsrd \$2,$key_,$iv1 |
| 1060 | movdqa $iv0,$reserved(%rsp) |
| 1061 | pshufb $bswap_mask,$iv0 |
| 1062 | movdqa $iv1,`$reserved+0x10`(%rsp) |
| 1063 | pshufb $bswap_mask,$iv1 |
| 1064 | |
| 1065 | pshufd \$`3<<6`,$iv0,$inout0 # place counter to upper dword |
| 1066 | pshufd \$`2<<6`,$iv0,$inout1 |
| 1067 | pshufd \$`1<<6`,$iv0,$inout2 |
| 1068 | cmp \$6,$len |
| 1069 | jb .Lctr32_tail |
| 1070 | shr \$1,$rounds |
| 1071 | mov $key,$key_ # backup $key |
| 1072 | mov $rounds,$rnds_ # backup $rounds |
| 1073 | sub \$6,$len |
| 1074 | jmp .Lctr32_loop6 |
| 1075 | |
| 1076 | .align 16 |
| 1077 | .Lctr32_loop6: |
| 1078 | pshufd \$`3<<6`,$iv1,$inout3 |
| 1079 | por $ivec,$inout0 # merge counter-less ivec |
| 1080 | $movkey ($key_),$rndkey0 |
| 1081 | pshufd \$`2<<6`,$iv1,$inout4 |
| 1082 | por $ivec,$inout1 |
| 1083 | $movkey 16($key_),$rndkey1 |
| 1084 | pshufd \$`1<<6`,$iv1,$inout5 |
| 1085 | por $ivec,$inout2 |
| 1086 | por $ivec,$inout3 |
| 1087 | xorps $rndkey0,$inout0 |
| 1088 | por $ivec,$inout4 |
| 1089 | por $ivec,$inout5 |
| 1090 | |
| 1091 | # inline _aesni_encrypt6 and interleave last rounds |
| 1092 | # with own code... |
| 1093 | |
| 1094 | pxor $rndkey0,$inout1 |
| 1095 | aesenc $rndkey1,$inout0 |
| 1096 | lea 32($key_),$key |
| 1097 | pxor $rndkey0,$inout2 |
| 1098 | aesenc $rndkey1,$inout1 |
| 1099 | movdqa .Lincrement32(%rip),$iv1 |
| 1100 | pxor $rndkey0,$inout3 |
| 1101 | aesenc $rndkey1,$inout2 |
| 1102 | movdqa $reserved(%rsp),$iv0 |
| 1103 | pxor $rndkey0,$inout4 |
| 1104 | aesenc $rndkey1,$inout3 |
| 1105 | pxor $rndkey0,$inout5 |
| 1106 | $movkey ($key),$rndkey0 |
| 1107 | dec $rounds |
| 1108 | aesenc $rndkey1,$inout4 |
| 1109 | aesenc $rndkey1,$inout5 |
| 1110 | jmp .Lctr32_enc_loop6_enter |
| 1111 | .align 16 |
| 1112 | .Lctr32_enc_loop6: |
| 1113 | aesenc $rndkey1,$inout0 |
| 1114 | aesenc $rndkey1,$inout1 |
| 1115 | dec $rounds |
| 1116 | aesenc $rndkey1,$inout2 |
| 1117 | aesenc $rndkey1,$inout3 |
| 1118 | aesenc $rndkey1,$inout4 |
| 1119 | aesenc $rndkey1,$inout5 |
| 1120 | .Lctr32_enc_loop6_enter: |
| 1121 | $movkey 16($key),$rndkey1 |
| 1122 | aesenc $rndkey0,$inout0 |
| 1123 | aesenc $rndkey0,$inout1 |
| 1124 | lea 32($key),$key |
| 1125 | aesenc $rndkey0,$inout2 |
| 1126 | aesenc $rndkey0,$inout3 |
| 1127 | aesenc $rndkey0,$inout4 |
| 1128 | aesenc $rndkey0,$inout5 |
| 1129 | $movkey ($key),$rndkey0 |
| 1130 | jnz .Lctr32_enc_loop6 |
| 1131 | |
| 1132 | aesenc $rndkey1,$inout0 |
| 1133 | paddd $iv1,$iv0 # increment counter vector |
| 1134 | aesenc $rndkey1,$inout1 |
| 1135 | paddd `$reserved+0x10`(%rsp),$iv1 |
| 1136 | aesenc $rndkey1,$inout2 |
| 1137 | movdqa $iv0,$reserved(%rsp) # save counter vector |
| 1138 | aesenc $rndkey1,$inout3 |
| 1139 | movdqa $iv1,`$reserved+0x10`(%rsp) |
| 1140 | aesenc $rndkey1,$inout4 |
| 1141 | pshufb $bswap_mask,$iv0 # byte swap |
| 1142 | aesenc $rndkey1,$inout5 |
| 1143 | pshufb $bswap_mask,$iv1 |
| 1144 | |
| 1145 | aesenclast $rndkey0,$inout0 |
| 1146 | movups ($inp),$in0 # load input |
| 1147 | aesenclast $rndkey0,$inout1 |
| 1148 | movups 0x10($inp),$in1 |
| 1149 | aesenclast $rndkey0,$inout2 |
| 1150 | movups 0x20($inp),$in2 |
| 1151 | aesenclast $rndkey0,$inout3 |
| 1152 | movups 0x30($inp),$in3 |
| 1153 | aesenclast $rndkey0,$inout4 |
| 1154 | movups 0x40($inp),$rndkey1 |
| 1155 | aesenclast $rndkey0,$inout5 |
| 1156 | movups 0x50($inp),$rndkey0 |
| 1157 | lea 0x60($inp),$inp |
| 1158 | |
| 1159 | xorps $inout0,$in0 # xor |
| 1160 | pshufd \$`3<<6`,$iv0,$inout0 |
| 1161 | xorps $inout1,$in1 |
| 1162 | pshufd \$`2<<6`,$iv0,$inout1 |
| 1163 | movups $in0,($out) # store output |
| 1164 | xorps $inout2,$in2 |
| 1165 | pshufd \$`1<<6`,$iv0,$inout2 |
| 1166 | movups $in1,0x10($out) |
| 1167 | xorps $inout3,$in3 |
| 1168 | movups $in2,0x20($out) |
| 1169 | xorps $inout4,$rndkey1 |
| 1170 | movups $in3,0x30($out) |
| 1171 | xorps $inout5,$rndkey0 |
| 1172 | movups $rndkey1,0x40($out) |
| 1173 | movups $rndkey0,0x50($out) |
| 1174 | lea 0x60($out),$out |
| 1175 | mov $rnds_,$rounds |
| 1176 | sub \$6,$len |
| 1177 | jnc .Lctr32_loop6 |
| 1178 | |
| 1179 | add \$6,$len |
| 1180 | jz .Lctr32_done |
| 1181 | mov $key_,$key # restore $key |
| 1182 | lea 1($rounds,$rounds),$rounds # restore original value |
| 1183 | |
| 1184 | .Lctr32_tail: |
| 1185 | por $ivec,$inout0 |
| 1186 | movups ($inp),$in0 |
| 1187 | cmp \$2,$len |
| 1188 | jb .Lctr32_one |
| 1189 | |
| 1190 | por $ivec,$inout1 |
| 1191 | movups 0x10($inp),$in1 |
| 1192 | je .Lctr32_two |
| 1193 | |
| 1194 | pshufd \$`3<<6`,$iv1,$inout3 |
| 1195 | por $ivec,$inout2 |
| 1196 | movups 0x20($inp),$in2 |
| 1197 | cmp \$4,$len |
| 1198 | jb .Lctr32_three |
| 1199 | |
| 1200 | pshufd \$`2<<6`,$iv1,$inout4 |
| 1201 | por $ivec,$inout3 |
| 1202 | movups 0x30($inp),$in3 |
| 1203 | je .Lctr32_four |
| 1204 | |
| 1205 | por $ivec,$inout4 |
| 1206 | xorps $inout5,$inout5 |
| 1207 | |
| 1208 | call _aesni_encrypt6 |
| 1209 | |
| 1210 | movups 0x40($inp),$rndkey1 |
| 1211 | xorps $inout0,$in0 |
| 1212 | xorps $inout1,$in1 |
| 1213 | movups $in0,($out) |
| 1214 | xorps $inout2,$in2 |
| 1215 | movups $in1,0x10($out) |
| 1216 | xorps $inout3,$in3 |
| 1217 | movups $in2,0x20($out) |
| 1218 | xorps $inout4,$rndkey1 |
| 1219 | movups $in3,0x30($out) |
| 1220 | movups $rndkey1,0x40($out) |
| 1221 | jmp .Lctr32_done |
| 1222 | |
| 1223 | .align 16 |
| 1224 | .Lctr32_one_shortcut: |
| 1225 | movups ($ivp),$inout0 |
| 1226 | movups ($inp),$in0 |
| 1227 | mov 240($key),$rounds # key->rounds |
| 1228 | .Lctr32_one: |
| 1229 | ___ |
| 1230 | &aesni_generate1("enc",$key,$rounds); |
| 1231 | $code.=<<___; |
| 1232 | xorps $inout0,$in0 |
| 1233 | movups $in0,($out) |
| 1234 | jmp .Lctr32_done |
| 1235 | |
| 1236 | .align 16 |
| 1237 | .Lctr32_two: |
| 1238 | xorps $inout2,$inout2 |
| 1239 | call _aesni_encrypt3 |
| 1240 | xorps $inout0,$in0 |
| 1241 | xorps $inout1,$in1 |
| 1242 | movups $in0,($out) |
| 1243 | movups $in1,0x10($out) |
| 1244 | jmp .Lctr32_done |
| 1245 | |
| 1246 | .align 16 |
| 1247 | .Lctr32_three: |
| 1248 | call _aesni_encrypt3 |
| 1249 | xorps $inout0,$in0 |
| 1250 | xorps $inout1,$in1 |
| 1251 | movups $in0,($out) |
| 1252 | xorps $inout2,$in2 |
| 1253 | movups $in1,0x10($out) |
| 1254 | movups $in2,0x20($out) |
| 1255 | jmp .Lctr32_done |
| 1256 | |
| 1257 | .align 16 |
| 1258 | .Lctr32_four: |
| 1259 | call _aesni_encrypt4 |
| 1260 | xorps $inout0,$in0 |
| 1261 | xorps $inout1,$in1 |
| 1262 | movups $in0,($out) |
| 1263 | xorps $inout2,$in2 |
| 1264 | movups $in1,0x10($out) |
| 1265 | xorps $inout3,$in3 |
| 1266 | movups $in2,0x20($out) |
| 1267 | movups $in3,0x30($out) |
| 1268 | |
| 1269 | .Lctr32_done: |
| 1270 | ___ |
| 1271 | $code.=<<___ if ($win64); |
| 1272 | movaps 0x20(%rsp),%xmm6 |
| 1273 | movaps 0x30(%rsp),%xmm7 |
| 1274 | movaps 0x40(%rsp),%xmm8 |
| 1275 | movaps 0x50(%rsp),%xmm9 |
| 1276 | movaps 0x60(%rsp),%xmm10 |
| 1277 | movaps 0x70(%rsp),%xmm11 |
| 1278 | movaps 0x80(%rsp),%xmm12 |
| 1279 | movaps 0x90(%rsp),%xmm13 |
| 1280 | movaps 0xa0(%rsp),%xmm14 |
| 1281 | movaps 0xb0(%rsp),%xmm15 |
| 1282 | lea 0xc8(%rsp),%rsp |
| 1283 | .Lctr32_ret: |
| 1284 | ___ |
| 1285 | $code.=<<___; |
| 1286 | ret |
| 1287 | .size aesni_ctr32_encrypt_blocks,.-aesni_ctr32_encrypt_blocks |
| 1288 | ___ |
| 1289 | } |
| 1290 | |
| 1291 | ###################################################################### |
| 1292 | # void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len, |
| 1293 | # const AES_KEY *key1, const AES_KEY *key2 |
| 1294 | # const unsigned char iv[16]); |
| 1295 | # |
| 1296 | { |
| 1297 | my @tweak=map("%xmm$_",(10..15)); |
| 1298 | my ($twmask,$twres,$twtmp)=("%xmm8","%xmm9",@tweak[4]); |
| 1299 | my ($key2,$ivp,$len_)=("%r8","%r9","%r9"); |
| 1300 | my $frame_size = 0x68 + ($win64?160:0); |
| 1301 | |
| 1302 | $code.=<<___; |
| 1303 | .globl aesni_xts_encrypt |
| 1304 | .type aesni_xts_encrypt,\@function,6 |
| 1305 | .align 16 |
| 1306 | aesni_xts_encrypt: |
| 1307 | lea -$frame_size(%rsp),%rsp |
| 1308 | ___ |
| 1309 | $code.=<<___ if ($win64); |
| 1310 | movaps %xmm6,0x60(%rsp) |
| 1311 | movaps %xmm7,0x70(%rsp) |
| 1312 | movaps %xmm8,0x80(%rsp) |
| 1313 | movaps %xmm9,0x90(%rsp) |
| 1314 | movaps %xmm10,0xa0(%rsp) |
| 1315 | movaps %xmm11,0xb0(%rsp) |
| 1316 | movaps %xmm12,0xc0(%rsp) |
| 1317 | movaps %xmm13,0xd0(%rsp) |
| 1318 | movaps %xmm14,0xe0(%rsp) |
| 1319 | movaps %xmm15,0xf0(%rsp) |
| 1320 | .Lxts_enc_body: |
| 1321 | ___ |
| 1322 | $code.=<<___; |
| 1323 | movups ($ivp),@tweak[5] # load clear-text tweak |
| 1324 | mov 240(%r8),$rounds # key2->rounds |
| 1325 | mov 240($key),$rnds_ # key1->rounds |
| 1326 | ___ |
| 1327 | # generate the tweak |
| 1328 | &aesni_generate1("enc",$key2,$rounds,@tweak[5]); |
| 1329 | $code.=<<___; |
| 1330 | mov $key,$key_ # backup $key |
| 1331 | mov $rnds_,$rounds # backup $rounds |
| 1332 | mov $len,$len_ # backup $len |
| 1333 | and \$-16,$len |
| 1334 | |
| 1335 | movdqa .Lxts_magic(%rip),$twmask |
| 1336 | pxor $twtmp,$twtmp |
| 1337 | pcmpgtd @tweak[5],$twtmp # broadcast upper bits |
| 1338 | ___ |
| 1339 | for ($i=0;$i<4;$i++) { |
| 1340 | $code.=<<___; |
| 1341 | pshufd \$0x13,$twtmp,$twres |
| 1342 | pxor $twtmp,$twtmp |
| 1343 | movdqa @tweak[5],@tweak[$i] |
| 1344 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1345 | pand $twmask,$twres # isolate carry and residue |
| 1346 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1347 | pxor $twres,@tweak[5] |
| 1348 | ___ |
| 1349 | } |
| 1350 | $code.=<<___; |
| 1351 | sub \$16*6,$len |
| 1352 | jc .Lxts_enc_short |
| 1353 | |
| 1354 | shr \$1,$rounds |
| 1355 | sub \$1,$rounds |
| 1356 | mov $rounds,$rnds_ |
| 1357 | jmp .Lxts_enc_grandloop |
| 1358 | |
| 1359 | .align 16 |
| 1360 | .Lxts_enc_grandloop: |
| 1361 | pshufd \$0x13,$twtmp,$twres |
| 1362 | movdqa @tweak[5],@tweak[4] |
| 1363 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1364 | movdqu `16*0`($inp),$inout0 # load input |
| 1365 | pand $twmask,$twres # isolate carry and residue |
| 1366 | movdqu `16*1`($inp),$inout1 |
| 1367 | pxor $twres,@tweak[5] |
| 1368 | |
| 1369 | movdqu `16*2`($inp),$inout2 |
| 1370 | pxor @tweak[0],$inout0 # input^=tweak |
| 1371 | movdqu `16*3`($inp),$inout3 |
| 1372 | pxor @tweak[1],$inout1 |
| 1373 | movdqu `16*4`($inp),$inout4 |
| 1374 | pxor @tweak[2],$inout2 |
| 1375 | movdqu `16*5`($inp),$inout5 |
| 1376 | lea `16*6`($inp),$inp |
| 1377 | pxor @tweak[3],$inout3 |
| 1378 | $movkey ($key_),$rndkey0 |
| 1379 | pxor @tweak[4],$inout4 |
| 1380 | pxor @tweak[5],$inout5 |
| 1381 | |
| 1382 | # inline _aesni_encrypt6 and interleave first and last rounds |
| 1383 | # with own code... |
| 1384 | $movkey 16($key_),$rndkey1 |
| 1385 | pxor $rndkey0,$inout0 |
| 1386 | pxor $rndkey0,$inout1 |
| 1387 | movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks |
| 1388 | aesenc $rndkey1,$inout0 |
| 1389 | lea 32($key_),$key |
| 1390 | pxor $rndkey0,$inout2 |
| 1391 | movdqa @tweak[1],`16*1`(%rsp) |
| 1392 | aesenc $rndkey1,$inout1 |
| 1393 | pxor $rndkey0,$inout3 |
| 1394 | movdqa @tweak[2],`16*2`(%rsp) |
| 1395 | aesenc $rndkey1,$inout2 |
| 1396 | pxor $rndkey0,$inout4 |
| 1397 | movdqa @tweak[3],`16*3`(%rsp) |
| 1398 | aesenc $rndkey1,$inout3 |
| 1399 | pxor $rndkey0,$inout5 |
| 1400 | $movkey ($key),$rndkey0 |
| 1401 | dec $rounds |
| 1402 | movdqa @tweak[4],`16*4`(%rsp) |
| 1403 | aesenc $rndkey1,$inout4 |
| 1404 | movdqa @tweak[5],`16*5`(%rsp) |
| 1405 | aesenc $rndkey1,$inout5 |
| 1406 | pxor $twtmp,$twtmp |
| 1407 | pcmpgtd @tweak[5],$twtmp |
| 1408 | jmp .Lxts_enc_loop6_enter |
| 1409 | |
| 1410 | .align 16 |
| 1411 | .Lxts_enc_loop6: |
| 1412 | aesenc $rndkey1,$inout0 |
| 1413 | aesenc $rndkey1,$inout1 |
| 1414 | dec $rounds |
| 1415 | aesenc $rndkey1,$inout2 |
| 1416 | aesenc $rndkey1,$inout3 |
| 1417 | aesenc $rndkey1,$inout4 |
| 1418 | aesenc $rndkey1,$inout5 |
| 1419 | .Lxts_enc_loop6_enter: |
| 1420 | $movkey 16($key),$rndkey1 |
| 1421 | aesenc $rndkey0,$inout0 |
| 1422 | aesenc $rndkey0,$inout1 |
| 1423 | lea 32($key),$key |
| 1424 | aesenc $rndkey0,$inout2 |
| 1425 | aesenc $rndkey0,$inout3 |
| 1426 | aesenc $rndkey0,$inout4 |
| 1427 | aesenc $rndkey0,$inout5 |
| 1428 | $movkey ($key),$rndkey0 |
| 1429 | jnz .Lxts_enc_loop6 |
| 1430 | |
| 1431 | pshufd \$0x13,$twtmp,$twres |
| 1432 | pxor $twtmp,$twtmp |
| 1433 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1434 | aesenc $rndkey1,$inout0 |
| 1435 | pand $twmask,$twres # isolate carry and residue |
| 1436 | aesenc $rndkey1,$inout1 |
| 1437 | pcmpgtd @tweak[5],$twtmp # broadcast upper bits |
| 1438 | aesenc $rndkey1,$inout2 |
| 1439 | pxor $twres,@tweak[5] |
| 1440 | aesenc $rndkey1,$inout3 |
| 1441 | aesenc $rndkey1,$inout4 |
| 1442 | aesenc $rndkey1,$inout5 |
| 1443 | $movkey 16($key),$rndkey1 |
| 1444 | |
| 1445 | pshufd \$0x13,$twtmp,$twres |
| 1446 | pxor $twtmp,$twtmp |
| 1447 | movdqa @tweak[5],@tweak[0] |
| 1448 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1449 | aesenc $rndkey0,$inout0 |
| 1450 | pand $twmask,$twres # isolate carry and residue |
| 1451 | aesenc $rndkey0,$inout1 |
| 1452 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1453 | aesenc $rndkey0,$inout2 |
| 1454 | pxor $twres,@tweak[5] |
| 1455 | aesenc $rndkey0,$inout3 |
| 1456 | aesenc $rndkey0,$inout4 |
| 1457 | aesenc $rndkey0,$inout5 |
| 1458 | $movkey 32($key),$rndkey0 |
| 1459 | |
| 1460 | pshufd \$0x13,$twtmp,$twres |
| 1461 | pxor $twtmp,$twtmp |
| 1462 | movdqa @tweak[5],@tweak[1] |
| 1463 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1464 | aesenc $rndkey1,$inout0 |
| 1465 | pand $twmask,$twres # isolate carry and residue |
| 1466 | aesenc $rndkey1,$inout1 |
| 1467 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1468 | aesenc $rndkey1,$inout2 |
| 1469 | pxor $twres,@tweak[5] |
| 1470 | aesenc $rndkey1,$inout3 |
| 1471 | aesenc $rndkey1,$inout4 |
| 1472 | aesenc $rndkey1,$inout5 |
| 1473 | |
| 1474 | pshufd \$0x13,$twtmp,$twres |
| 1475 | pxor $twtmp,$twtmp |
| 1476 | movdqa @tweak[5],@tweak[2] |
| 1477 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1478 | aesenclast $rndkey0,$inout0 |
| 1479 | pand $twmask,$twres # isolate carry and residue |
| 1480 | aesenclast $rndkey0,$inout1 |
| 1481 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1482 | aesenclast $rndkey0,$inout2 |
| 1483 | pxor $twres,@tweak[5] |
| 1484 | aesenclast $rndkey0,$inout3 |
| 1485 | aesenclast $rndkey0,$inout4 |
| 1486 | aesenclast $rndkey0,$inout5 |
| 1487 | |
| 1488 | pshufd \$0x13,$twtmp,$twres |
| 1489 | pxor $twtmp,$twtmp |
| 1490 | movdqa @tweak[5],@tweak[3] |
| 1491 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1492 | xorps `16*0`(%rsp),$inout0 # output^=tweak |
| 1493 | pand $twmask,$twres # isolate carry and residue |
| 1494 | xorps `16*1`(%rsp),$inout1 |
| 1495 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1496 | pxor $twres,@tweak[5] |
| 1497 | |
| 1498 | xorps `16*2`(%rsp),$inout2 |
| 1499 | movups $inout0,`16*0`($out) # write output |
| 1500 | xorps `16*3`(%rsp),$inout3 |
| 1501 | movups $inout1,`16*1`($out) |
| 1502 | xorps `16*4`(%rsp),$inout4 |
| 1503 | movups $inout2,`16*2`($out) |
| 1504 | xorps `16*5`(%rsp),$inout5 |
| 1505 | movups $inout3,`16*3`($out) |
| 1506 | mov $rnds_,$rounds # restore $rounds |
| 1507 | movups $inout4,`16*4`($out) |
| 1508 | movups $inout5,`16*5`($out) |
| 1509 | lea `16*6`($out),$out |
| 1510 | sub \$16*6,$len |
| 1511 | jnc .Lxts_enc_grandloop |
| 1512 | |
| 1513 | lea 3($rounds,$rounds),$rounds # restore original value |
| 1514 | mov $key_,$key # restore $key |
| 1515 | mov $rounds,$rnds_ # backup $rounds |
| 1516 | |
| 1517 | .Lxts_enc_short: |
| 1518 | add \$16*6,$len |
| 1519 | jz .Lxts_enc_done |
| 1520 | |
| 1521 | cmp \$0x20,$len |
| 1522 | jb .Lxts_enc_one |
| 1523 | je .Lxts_enc_two |
| 1524 | |
| 1525 | cmp \$0x40,$len |
| 1526 | jb .Lxts_enc_three |
| 1527 | je .Lxts_enc_four |
| 1528 | |
| 1529 | pshufd \$0x13,$twtmp,$twres |
| 1530 | movdqa @tweak[5],@tweak[4] |
| 1531 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1532 | movdqu ($inp),$inout0 |
| 1533 | pand $twmask,$twres # isolate carry and residue |
| 1534 | movdqu 16*1($inp),$inout1 |
| 1535 | pxor $twres,@tweak[5] |
| 1536 | |
| 1537 | movdqu 16*2($inp),$inout2 |
| 1538 | pxor @tweak[0],$inout0 |
| 1539 | movdqu 16*3($inp),$inout3 |
| 1540 | pxor @tweak[1],$inout1 |
| 1541 | movdqu 16*4($inp),$inout4 |
| 1542 | lea 16*5($inp),$inp |
| 1543 | pxor @tweak[2],$inout2 |
| 1544 | pxor @tweak[3],$inout3 |
| 1545 | pxor @tweak[4],$inout4 |
| 1546 | |
| 1547 | call _aesni_encrypt6 |
| 1548 | |
| 1549 | xorps @tweak[0],$inout0 |
| 1550 | movdqa @tweak[5],@tweak[0] |
| 1551 | xorps @tweak[1],$inout1 |
| 1552 | xorps @tweak[2],$inout2 |
| 1553 | movdqu $inout0,($out) |
| 1554 | xorps @tweak[3],$inout3 |
| 1555 | movdqu $inout1,16*1($out) |
| 1556 | xorps @tweak[4],$inout4 |
| 1557 | movdqu $inout2,16*2($out) |
| 1558 | movdqu $inout3,16*3($out) |
| 1559 | movdqu $inout4,16*4($out) |
| 1560 | lea 16*5($out),$out |
| 1561 | jmp .Lxts_enc_done |
| 1562 | |
| 1563 | .align 16 |
| 1564 | .Lxts_enc_one: |
| 1565 | movups ($inp),$inout0 |
| 1566 | lea 16*1($inp),$inp |
| 1567 | xorps @tweak[0],$inout0 |
| 1568 | ___ |
| 1569 | &aesni_generate1("enc",$key,$rounds); |
| 1570 | $code.=<<___; |
| 1571 | xorps @tweak[0],$inout0 |
| 1572 | movdqa @tweak[1],@tweak[0] |
| 1573 | movups $inout0,($out) |
| 1574 | lea 16*1($out),$out |
| 1575 | jmp .Lxts_enc_done |
| 1576 | |
| 1577 | .align 16 |
| 1578 | .Lxts_enc_two: |
| 1579 | movups ($inp),$inout0 |
| 1580 | movups 16($inp),$inout1 |
| 1581 | lea 32($inp),$inp |
| 1582 | xorps @tweak[0],$inout0 |
| 1583 | xorps @tweak[1],$inout1 |
| 1584 | |
| 1585 | call _aesni_encrypt3 |
| 1586 | |
| 1587 | xorps @tweak[0],$inout0 |
| 1588 | movdqa @tweak[2],@tweak[0] |
| 1589 | xorps @tweak[1],$inout1 |
| 1590 | movups $inout0,($out) |
| 1591 | movups $inout1,16*1($out) |
| 1592 | lea 16*2($out),$out |
| 1593 | jmp .Lxts_enc_done |
| 1594 | |
| 1595 | .align 16 |
| 1596 | .Lxts_enc_three: |
| 1597 | movups ($inp),$inout0 |
| 1598 | movups 16*1($inp),$inout1 |
| 1599 | movups 16*2($inp),$inout2 |
| 1600 | lea 16*3($inp),$inp |
| 1601 | xorps @tweak[0],$inout0 |
| 1602 | xorps @tweak[1],$inout1 |
| 1603 | xorps @tweak[2],$inout2 |
| 1604 | |
| 1605 | call _aesni_encrypt3 |
| 1606 | |
| 1607 | xorps @tweak[0],$inout0 |
| 1608 | movdqa @tweak[3],@tweak[0] |
| 1609 | xorps @tweak[1],$inout1 |
| 1610 | xorps @tweak[2],$inout2 |
| 1611 | movups $inout0,($out) |
| 1612 | movups $inout1,16*1($out) |
| 1613 | movups $inout2,16*2($out) |
| 1614 | lea 16*3($out),$out |
| 1615 | jmp .Lxts_enc_done |
| 1616 | |
| 1617 | .align 16 |
| 1618 | .Lxts_enc_four: |
| 1619 | movups ($inp),$inout0 |
| 1620 | movups 16*1($inp),$inout1 |
| 1621 | movups 16*2($inp),$inout2 |
| 1622 | xorps @tweak[0],$inout0 |
| 1623 | movups 16*3($inp),$inout3 |
| 1624 | lea 16*4($inp),$inp |
| 1625 | xorps @tweak[1],$inout1 |
| 1626 | xorps @tweak[2],$inout2 |
| 1627 | xorps @tweak[3],$inout3 |
| 1628 | |
| 1629 | call _aesni_encrypt4 |
| 1630 | |
| 1631 | xorps @tweak[0],$inout0 |
| 1632 | movdqa @tweak[5],@tweak[0] |
| 1633 | xorps @tweak[1],$inout1 |
| 1634 | xorps @tweak[2],$inout2 |
| 1635 | movups $inout0,($out) |
| 1636 | xorps @tweak[3],$inout3 |
| 1637 | movups $inout1,16*1($out) |
| 1638 | movups $inout2,16*2($out) |
| 1639 | movups $inout3,16*3($out) |
| 1640 | lea 16*4($out),$out |
| 1641 | jmp .Lxts_enc_done |
| 1642 | |
| 1643 | .align 16 |
| 1644 | .Lxts_enc_done: |
| 1645 | and \$15,$len_ |
| 1646 | jz .Lxts_enc_ret |
| 1647 | mov $len_,$len |
| 1648 | |
| 1649 | .Lxts_enc_steal: |
| 1650 | movzb ($inp),%eax # borrow $rounds ... |
| 1651 | movzb -16($out),%ecx # ... and $key |
| 1652 | lea 1($inp),$inp |
| 1653 | mov %al,-16($out) |
| 1654 | mov %cl,0($out) |
| 1655 | lea 1($out),$out |
| 1656 | sub \$1,$len |
| 1657 | jnz .Lxts_enc_steal |
| 1658 | |
| 1659 | sub $len_,$out # rewind $out |
| 1660 | mov $key_,$key # restore $key |
| 1661 | mov $rnds_,$rounds # restore $rounds |
| 1662 | |
| 1663 | movups -16($out),$inout0 |
| 1664 | xorps @tweak[0],$inout0 |
| 1665 | ___ |
| 1666 | &aesni_generate1("enc",$key,$rounds); |
| 1667 | $code.=<<___; |
| 1668 | xorps @tweak[0],$inout0 |
| 1669 | movups $inout0,-16($out) |
| 1670 | |
| 1671 | .Lxts_enc_ret: |
| 1672 | ___ |
| 1673 | $code.=<<___ if ($win64); |
| 1674 | movaps 0x60(%rsp),%xmm6 |
| 1675 | movaps 0x70(%rsp),%xmm7 |
| 1676 | movaps 0x80(%rsp),%xmm8 |
| 1677 | movaps 0x90(%rsp),%xmm9 |
| 1678 | movaps 0xa0(%rsp),%xmm10 |
| 1679 | movaps 0xb0(%rsp),%xmm11 |
| 1680 | movaps 0xc0(%rsp),%xmm12 |
| 1681 | movaps 0xd0(%rsp),%xmm13 |
| 1682 | movaps 0xe0(%rsp),%xmm14 |
| 1683 | movaps 0xf0(%rsp),%xmm15 |
| 1684 | ___ |
| 1685 | $code.=<<___; |
| 1686 | lea $frame_size(%rsp),%rsp |
| 1687 | .Lxts_enc_epilogue: |
| 1688 | ret |
| 1689 | .size aesni_xts_encrypt,.-aesni_xts_encrypt |
| 1690 | ___ |
| 1691 | |
| 1692 | $code.=<<___; |
| 1693 | .globl aesni_xts_decrypt |
| 1694 | .type aesni_xts_decrypt,\@function,6 |
| 1695 | .align 16 |
| 1696 | aesni_xts_decrypt: |
| 1697 | lea -$frame_size(%rsp),%rsp |
| 1698 | ___ |
| 1699 | $code.=<<___ if ($win64); |
| 1700 | movaps %xmm6,0x60(%rsp) |
| 1701 | movaps %xmm7,0x70(%rsp) |
| 1702 | movaps %xmm8,0x80(%rsp) |
| 1703 | movaps %xmm9,0x90(%rsp) |
| 1704 | movaps %xmm10,0xa0(%rsp) |
| 1705 | movaps %xmm11,0xb0(%rsp) |
| 1706 | movaps %xmm12,0xc0(%rsp) |
| 1707 | movaps %xmm13,0xd0(%rsp) |
| 1708 | movaps %xmm14,0xe0(%rsp) |
| 1709 | movaps %xmm15,0xf0(%rsp) |
| 1710 | .Lxts_dec_body: |
| 1711 | ___ |
| 1712 | $code.=<<___; |
| 1713 | movups ($ivp),@tweak[5] # load clear-text tweak |
| 1714 | mov 240($key2),$rounds # key2->rounds |
| 1715 | mov 240($key),$rnds_ # key1->rounds |
| 1716 | ___ |
| 1717 | # generate the tweak |
| 1718 | &aesni_generate1("enc",$key2,$rounds,@tweak[5]); |
| 1719 | $code.=<<___; |
| 1720 | xor %eax,%eax # if ($len%16) len-=16; |
| 1721 | test \$15,$len |
| 1722 | setnz %al |
| 1723 | shl \$4,%rax |
| 1724 | sub %rax,$len |
| 1725 | |
| 1726 | mov $key,$key_ # backup $key |
| 1727 | mov $rnds_,$rounds # backup $rounds |
| 1728 | mov $len,$len_ # backup $len |
| 1729 | and \$-16,$len |
| 1730 | |
| 1731 | movdqa .Lxts_magic(%rip),$twmask |
| 1732 | pxor $twtmp,$twtmp |
| 1733 | pcmpgtd @tweak[5],$twtmp # broadcast upper bits |
| 1734 | ___ |
| 1735 | for ($i=0;$i<4;$i++) { |
| 1736 | $code.=<<___; |
| 1737 | pshufd \$0x13,$twtmp,$twres |
| 1738 | pxor $twtmp,$twtmp |
| 1739 | movdqa @tweak[5],@tweak[$i] |
| 1740 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1741 | pand $twmask,$twres # isolate carry and residue |
| 1742 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1743 | pxor $twres,@tweak[5] |
| 1744 | ___ |
| 1745 | } |
| 1746 | $code.=<<___; |
| 1747 | sub \$16*6,$len |
| 1748 | jc .Lxts_dec_short |
| 1749 | |
| 1750 | shr \$1,$rounds |
| 1751 | sub \$1,$rounds |
| 1752 | mov $rounds,$rnds_ |
| 1753 | jmp .Lxts_dec_grandloop |
| 1754 | |
| 1755 | .align 16 |
| 1756 | .Lxts_dec_grandloop: |
| 1757 | pshufd \$0x13,$twtmp,$twres |
| 1758 | movdqa @tweak[5],@tweak[4] |
| 1759 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1760 | movdqu `16*0`($inp),$inout0 # load input |
| 1761 | pand $twmask,$twres # isolate carry and residue |
| 1762 | movdqu `16*1`($inp),$inout1 |
| 1763 | pxor $twres,@tweak[5] |
| 1764 | |
| 1765 | movdqu `16*2`($inp),$inout2 |
| 1766 | pxor @tweak[0],$inout0 # input^=tweak |
| 1767 | movdqu `16*3`($inp),$inout3 |
| 1768 | pxor @tweak[1],$inout1 |
| 1769 | movdqu `16*4`($inp),$inout4 |
| 1770 | pxor @tweak[2],$inout2 |
| 1771 | movdqu `16*5`($inp),$inout5 |
| 1772 | lea `16*6`($inp),$inp |
| 1773 | pxor @tweak[3],$inout3 |
| 1774 | $movkey ($key_),$rndkey0 |
| 1775 | pxor @tweak[4],$inout4 |
| 1776 | pxor @tweak[5],$inout5 |
| 1777 | |
| 1778 | # inline _aesni_decrypt6 and interleave first and last rounds |
| 1779 | # with own code... |
| 1780 | $movkey 16($key_),$rndkey1 |
| 1781 | pxor $rndkey0,$inout0 |
| 1782 | pxor $rndkey0,$inout1 |
| 1783 | movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks |
| 1784 | aesdec $rndkey1,$inout0 |
| 1785 | lea 32($key_),$key |
| 1786 | pxor $rndkey0,$inout2 |
| 1787 | movdqa @tweak[1],`16*1`(%rsp) |
| 1788 | aesdec $rndkey1,$inout1 |
| 1789 | pxor $rndkey0,$inout3 |
| 1790 | movdqa @tweak[2],`16*2`(%rsp) |
| 1791 | aesdec $rndkey1,$inout2 |
| 1792 | pxor $rndkey0,$inout4 |
| 1793 | movdqa @tweak[3],`16*3`(%rsp) |
| 1794 | aesdec $rndkey1,$inout3 |
| 1795 | pxor $rndkey0,$inout5 |
| 1796 | $movkey ($key),$rndkey0 |
| 1797 | dec $rounds |
| 1798 | movdqa @tweak[4],`16*4`(%rsp) |
| 1799 | aesdec $rndkey1,$inout4 |
| 1800 | movdqa @tweak[5],`16*5`(%rsp) |
| 1801 | aesdec $rndkey1,$inout5 |
| 1802 | pxor $twtmp,$twtmp |
| 1803 | pcmpgtd @tweak[5],$twtmp |
| 1804 | jmp .Lxts_dec_loop6_enter |
| 1805 | |
| 1806 | .align 16 |
| 1807 | .Lxts_dec_loop6: |
| 1808 | aesdec $rndkey1,$inout0 |
| 1809 | aesdec $rndkey1,$inout1 |
| 1810 | dec $rounds |
| 1811 | aesdec $rndkey1,$inout2 |
| 1812 | aesdec $rndkey1,$inout3 |
| 1813 | aesdec $rndkey1,$inout4 |
| 1814 | aesdec $rndkey1,$inout5 |
| 1815 | .Lxts_dec_loop6_enter: |
| 1816 | $movkey 16($key),$rndkey1 |
| 1817 | aesdec $rndkey0,$inout0 |
| 1818 | aesdec $rndkey0,$inout1 |
| 1819 | lea 32($key),$key |
| 1820 | aesdec $rndkey0,$inout2 |
| 1821 | aesdec $rndkey0,$inout3 |
| 1822 | aesdec $rndkey0,$inout4 |
| 1823 | aesdec $rndkey0,$inout5 |
| 1824 | $movkey ($key),$rndkey0 |
| 1825 | jnz .Lxts_dec_loop6 |
| 1826 | |
| 1827 | pshufd \$0x13,$twtmp,$twres |
| 1828 | pxor $twtmp,$twtmp |
| 1829 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1830 | aesdec $rndkey1,$inout0 |
| 1831 | pand $twmask,$twres # isolate carry and residue |
| 1832 | aesdec $rndkey1,$inout1 |
| 1833 | pcmpgtd @tweak[5],$twtmp # broadcast upper bits |
| 1834 | aesdec $rndkey1,$inout2 |
| 1835 | pxor $twres,@tweak[5] |
| 1836 | aesdec $rndkey1,$inout3 |
| 1837 | aesdec $rndkey1,$inout4 |
| 1838 | aesdec $rndkey1,$inout5 |
| 1839 | $movkey 16($key),$rndkey1 |
| 1840 | |
| 1841 | pshufd \$0x13,$twtmp,$twres |
| 1842 | pxor $twtmp,$twtmp |
| 1843 | movdqa @tweak[5],@tweak[0] |
| 1844 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1845 | aesdec $rndkey0,$inout0 |
| 1846 | pand $twmask,$twres # isolate carry and residue |
| 1847 | aesdec $rndkey0,$inout1 |
| 1848 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1849 | aesdec $rndkey0,$inout2 |
| 1850 | pxor $twres,@tweak[5] |
| 1851 | aesdec $rndkey0,$inout3 |
| 1852 | aesdec $rndkey0,$inout4 |
| 1853 | aesdec $rndkey0,$inout5 |
| 1854 | $movkey 32($key),$rndkey0 |
| 1855 | |
| 1856 | pshufd \$0x13,$twtmp,$twres |
| 1857 | pxor $twtmp,$twtmp |
| 1858 | movdqa @tweak[5],@tweak[1] |
| 1859 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1860 | aesdec $rndkey1,$inout0 |
| 1861 | pand $twmask,$twres # isolate carry and residue |
| 1862 | aesdec $rndkey1,$inout1 |
| 1863 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1864 | aesdec $rndkey1,$inout2 |
| 1865 | pxor $twres,@tweak[5] |
| 1866 | aesdec $rndkey1,$inout3 |
| 1867 | aesdec $rndkey1,$inout4 |
| 1868 | aesdec $rndkey1,$inout5 |
| 1869 | |
| 1870 | pshufd \$0x13,$twtmp,$twres |
| 1871 | pxor $twtmp,$twtmp |
| 1872 | movdqa @tweak[5],@tweak[2] |
| 1873 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1874 | aesdeclast $rndkey0,$inout0 |
| 1875 | pand $twmask,$twres # isolate carry and residue |
| 1876 | aesdeclast $rndkey0,$inout1 |
| 1877 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1878 | aesdeclast $rndkey0,$inout2 |
| 1879 | pxor $twres,@tweak[5] |
| 1880 | aesdeclast $rndkey0,$inout3 |
| 1881 | aesdeclast $rndkey0,$inout4 |
| 1882 | aesdeclast $rndkey0,$inout5 |
| 1883 | |
| 1884 | pshufd \$0x13,$twtmp,$twres |
| 1885 | pxor $twtmp,$twtmp |
| 1886 | movdqa @tweak[5],@tweak[3] |
| 1887 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1888 | xorps `16*0`(%rsp),$inout0 # output^=tweak |
| 1889 | pand $twmask,$twres # isolate carry and residue |
| 1890 | xorps `16*1`(%rsp),$inout1 |
| 1891 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1892 | pxor $twres,@tweak[5] |
| 1893 | |
| 1894 | xorps `16*2`(%rsp),$inout2 |
| 1895 | movups $inout0,`16*0`($out) # write output |
| 1896 | xorps `16*3`(%rsp),$inout3 |
| 1897 | movups $inout1,`16*1`($out) |
| 1898 | xorps `16*4`(%rsp),$inout4 |
| 1899 | movups $inout2,`16*2`($out) |
| 1900 | xorps `16*5`(%rsp),$inout5 |
| 1901 | movups $inout3,`16*3`($out) |
| 1902 | mov $rnds_,$rounds # restore $rounds |
| 1903 | movups $inout4,`16*4`($out) |
| 1904 | movups $inout5,`16*5`($out) |
| 1905 | lea `16*6`($out),$out |
| 1906 | sub \$16*6,$len |
| 1907 | jnc .Lxts_dec_grandloop |
| 1908 | |
| 1909 | lea 3($rounds,$rounds),$rounds # restore original value |
| 1910 | mov $key_,$key # restore $key |
| 1911 | mov $rounds,$rnds_ # backup $rounds |
| 1912 | |
| 1913 | .Lxts_dec_short: |
| 1914 | add \$16*6,$len |
| 1915 | jz .Lxts_dec_done |
| 1916 | |
| 1917 | cmp \$0x20,$len |
| 1918 | jb .Lxts_dec_one |
| 1919 | je .Lxts_dec_two |
| 1920 | |
| 1921 | cmp \$0x40,$len |
| 1922 | jb .Lxts_dec_three |
| 1923 | je .Lxts_dec_four |
| 1924 | |
| 1925 | pshufd \$0x13,$twtmp,$twres |
| 1926 | movdqa @tweak[5],@tweak[4] |
| 1927 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1928 | movdqu ($inp),$inout0 |
| 1929 | pand $twmask,$twres # isolate carry and residue |
| 1930 | movdqu 16*1($inp),$inout1 |
| 1931 | pxor $twres,@tweak[5] |
| 1932 | |
| 1933 | movdqu 16*2($inp),$inout2 |
| 1934 | pxor @tweak[0],$inout0 |
| 1935 | movdqu 16*3($inp),$inout3 |
| 1936 | pxor @tweak[1],$inout1 |
| 1937 | movdqu 16*4($inp),$inout4 |
| 1938 | lea 16*5($inp),$inp |
| 1939 | pxor @tweak[2],$inout2 |
| 1940 | pxor @tweak[3],$inout3 |
| 1941 | pxor @tweak[4],$inout4 |
| 1942 | |
| 1943 | call _aesni_decrypt6 |
| 1944 | |
| 1945 | xorps @tweak[0],$inout0 |
| 1946 | xorps @tweak[1],$inout1 |
| 1947 | xorps @tweak[2],$inout2 |
| 1948 | movdqu $inout0,($out) |
| 1949 | xorps @tweak[3],$inout3 |
| 1950 | movdqu $inout1,16*1($out) |
| 1951 | xorps @tweak[4],$inout4 |
| 1952 | movdqu $inout2,16*2($out) |
| 1953 | pxor $twtmp,$twtmp |
| 1954 | movdqu $inout3,16*3($out) |
| 1955 | pcmpgtd @tweak[5],$twtmp |
| 1956 | movdqu $inout4,16*4($out) |
| 1957 | lea 16*5($out),$out |
| 1958 | pshufd \$0x13,$twtmp,@tweak[1] # $twres |
| 1959 | and \$15,$len_ |
| 1960 | jz .Lxts_dec_ret |
| 1961 | |
| 1962 | movdqa @tweak[5],@tweak[0] |
| 1963 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1964 | pand $twmask,@tweak[1] # isolate carry and residue |
| 1965 | pxor @tweak[5],@tweak[1] |
| 1966 | jmp .Lxts_dec_done2 |
| 1967 | |
| 1968 | .align 16 |
| 1969 | .Lxts_dec_one: |
| 1970 | movups ($inp),$inout0 |
| 1971 | lea 16*1($inp),$inp |
| 1972 | xorps @tweak[0],$inout0 |
| 1973 | ___ |
| 1974 | &aesni_generate1("dec",$key,$rounds); |
| 1975 | $code.=<<___; |
| 1976 | xorps @tweak[0],$inout0 |
| 1977 | movdqa @tweak[1],@tweak[0] |
| 1978 | movups $inout0,($out) |
| 1979 | movdqa @tweak[2],@tweak[1] |
| 1980 | lea 16*1($out),$out |
| 1981 | jmp .Lxts_dec_done |
| 1982 | |
| 1983 | .align 16 |
| 1984 | .Lxts_dec_two: |
| 1985 | movups ($inp),$inout0 |
| 1986 | movups 16($inp),$inout1 |
| 1987 | lea 32($inp),$inp |
| 1988 | xorps @tweak[0],$inout0 |
| 1989 | xorps @tweak[1],$inout1 |
| 1990 | |
| 1991 | call _aesni_decrypt3 |
| 1992 | |
| 1993 | xorps @tweak[0],$inout0 |
| 1994 | movdqa @tweak[2],@tweak[0] |
| 1995 | xorps @tweak[1],$inout1 |
| 1996 | movdqa @tweak[3],@tweak[1] |
| 1997 | movups $inout0,($out) |
| 1998 | movups $inout1,16*1($out) |
| 1999 | lea 16*2($out),$out |
| 2000 | jmp .Lxts_dec_done |
| 2001 | |
| 2002 | .align 16 |
| 2003 | .Lxts_dec_three: |
| 2004 | movups ($inp),$inout0 |
| 2005 | movups 16*1($inp),$inout1 |
| 2006 | movups 16*2($inp),$inout2 |
| 2007 | lea 16*3($inp),$inp |
| 2008 | xorps @tweak[0],$inout0 |
| 2009 | xorps @tweak[1],$inout1 |
| 2010 | xorps @tweak[2],$inout2 |
| 2011 | |
| 2012 | call _aesni_decrypt3 |
| 2013 | |
| 2014 | xorps @tweak[0],$inout0 |
| 2015 | movdqa @tweak[3],@tweak[0] |
| 2016 | xorps @tweak[1],$inout1 |
| 2017 | movdqa @tweak[5],@tweak[1] |
| 2018 | xorps @tweak[2],$inout2 |
| 2019 | movups $inout0,($out) |
| 2020 | movups $inout1,16*1($out) |
| 2021 | movups $inout2,16*2($out) |
| 2022 | lea 16*3($out),$out |
| 2023 | jmp .Lxts_dec_done |
| 2024 | |
| 2025 | .align 16 |
| 2026 | .Lxts_dec_four: |
| 2027 | pshufd \$0x13,$twtmp,$twres |
| 2028 | movdqa @tweak[5],@tweak[4] |
| 2029 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 2030 | movups ($inp),$inout0 |
| 2031 | pand $twmask,$twres # isolate carry and residue |
| 2032 | movups 16*1($inp),$inout1 |
| 2033 | pxor $twres,@tweak[5] |
| 2034 | |
| 2035 | movups 16*2($inp),$inout2 |
| 2036 | xorps @tweak[0],$inout0 |
| 2037 | movups 16*3($inp),$inout3 |
| 2038 | lea 16*4($inp),$inp |
| 2039 | xorps @tweak[1],$inout1 |
| 2040 | xorps @tweak[2],$inout2 |
| 2041 | xorps @tweak[3],$inout3 |
| 2042 | |
| 2043 | call _aesni_decrypt4 |
| 2044 | |
| 2045 | xorps @tweak[0],$inout0 |
| 2046 | movdqa @tweak[4],@tweak[0] |
| 2047 | xorps @tweak[1],$inout1 |
| 2048 | movdqa @tweak[5],@tweak[1] |
| 2049 | xorps @tweak[2],$inout2 |
| 2050 | movups $inout0,($out) |
| 2051 | xorps @tweak[3],$inout3 |
| 2052 | movups $inout1,16*1($out) |
| 2053 | movups $inout2,16*2($out) |
| 2054 | movups $inout3,16*3($out) |
| 2055 | lea 16*4($out),$out |
| 2056 | jmp .Lxts_dec_done |
| 2057 | |
| 2058 | .align 16 |
| 2059 | .Lxts_dec_done: |
| 2060 | and \$15,$len_ |
| 2061 | jz .Lxts_dec_ret |
| 2062 | .Lxts_dec_done2: |
| 2063 | mov $len_,$len |
| 2064 | mov $key_,$key # restore $key |
| 2065 | mov $rnds_,$rounds # restore $rounds |
| 2066 | |
| 2067 | movups ($inp),$inout0 |
| 2068 | xorps @tweak[1],$inout0 |
| 2069 | ___ |
| 2070 | &aesni_generate1("dec",$key,$rounds); |
| 2071 | $code.=<<___; |
| 2072 | xorps @tweak[1],$inout0 |
| 2073 | movups $inout0,($out) |
| 2074 | |
| 2075 | .Lxts_dec_steal: |
| 2076 | movzb 16($inp),%eax # borrow $rounds ... |
| 2077 | movzb ($out),%ecx # ... and $key |
| 2078 | lea 1($inp),$inp |
| 2079 | mov %al,($out) |
| 2080 | mov %cl,16($out) |
| 2081 | lea 1($out),$out |
| 2082 | sub \$1,$len |
| 2083 | jnz .Lxts_dec_steal |
| 2084 | |
| 2085 | sub $len_,$out # rewind $out |
| 2086 | mov $key_,$key # restore $key |
| 2087 | mov $rnds_,$rounds # restore $rounds |
| 2088 | |
| 2089 | movups ($out),$inout0 |
| 2090 | xorps @tweak[0],$inout0 |
| 2091 | ___ |
| 2092 | &aesni_generate1("dec",$key,$rounds); |
| 2093 | $code.=<<___; |
| 2094 | xorps @tweak[0],$inout0 |
| 2095 | movups $inout0,($out) |
| 2096 | |
| 2097 | .Lxts_dec_ret: |
| 2098 | ___ |
| 2099 | $code.=<<___ if ($win64); |
| 2100 | movaps 0x60(%rsp),%xmm6 |
| 2101 | movaps 0x70(%rsp),%xmm7 |
| 2102 | movaps 0x80(%rsp),%xmm8 |
| 2103 | movaps 0x90(%rsp),%xmm9 |
| 2104 | movaps 0xa0(%rsp),%xmm10 |
| 2105 | movaps 0xb0(%rsp),%xmm11 |
| 2106 | movaps 0xc0(%rsp),%xmm12 |
| 2107 | movaps 0xd0(%rsp),%xmm13 |
| 2108 | movaps 0xe0(%rsp),%xmm14 |
| 2109 | movaps 0xf0(%rsp),%xmm15 |
| 2110 | ___ |
| 2111 | $code.=<<___; |
| 2112 | lea $frame_size(%rsp),%rsp |
| 2113 | .Lxts_dec_epilogue: |
| 2114 | ret |
| 2115 | .size aesni_xts_decrypt,.-aesni_xts_decrypt |
| 2116 | ___ |
| 2117 | } }} |
| 2118 | |
| 2119 | ######################################################################## |
| 2120 | # void $PREFIX_cbc_encrypt (const void *inp, void *out, |
| 2121 | # size_t length, const AES_KEY *key, |
| 2122 | # unsigned char *ivp,const int enc); |
| 2123 | { |
| 2124 | my $reserved = $win64?0x40:-0x18; # used in decrypt |
| 2125 | $code.=<<___; |
| 2126 | .globl ${PREFIX}_cbc_encrypt |
| 2127 | .type ${PREFIX}_cbc_encrypt,\@function,6 |
| 2128 | .align 16 |
| 2129 | ${PREFIX}_cbc_encrypt: |
| 2130 | test $len,$len # check length |
| 2131 | jz .Lcbc_ret |
| 2132 | |
| 2133 | mov 240($key),$rnds_ # key->rounds |
| 2134 | mov $key,$key_ # backup $key |
| 2135 | test %r9d,%r9d # 6th argument |
| 2136 | jz .Lcbc_decrypt |
| 2137 | #--------------------------- CBC ENCRYPT ------------------------------# |
| 2138 | movups ($ivp),$inout0 # load iv as initial state |
| 2139 | mov $rnds_,$rounds |
| 2140 | cmp \$16,$len |
| 2141 | jb .Lcbc_enc_tail |
| 2142 | sub \$16,$len |
| 2143 | jmp .Lcbc_enc_loop |
| 2144 | .align 16 |
| 2145 | .Lcbc_enc_loop: |
| 2146 | movups ($inp),$inout1 # load input |
| 2147 | lea 16($inp),$inp |
| 2148 | #xorps $inout1,$inout0 |
| 2149 | ___ |
| 2150 | &aesni_generate1("enc",$key,$rounds,$inout0,$inout1); |
| 2151 | $code.=<<___; |
| 2152 | mov $rnds_,$rounds # restore $rounds |
| 2153 | mov $key_,$key # restore $key |
| 2154 | movups $inout0,0($out) # store output |
| 2155 | lea 16($out),$out |
| 2156 | sub \$16,$len |
| 2157 | jnc .Lcbc_enc_loop |
| 2158 | add \$16,$len |
| 2159 | jnz .Lcbc_enc_tail |
| 2160 | movups $inout0,($ivp) |
| 2161 | jmp .Lcbc_ret |
| 2162 | |
| 2163 | .Lcbc_enc_tail: |
| 2164 | mov $len,%rcx # zaps $key |
| 2165 | xchg $inp,$out # $inp is %rsi and $out is %rdi now |
| 2166 | .long 0x9066A4F3 # rep movsb |
| 2167 | mov \$16,%ecx # zero tail |
| 2168 | sub $len,%rcx |
| 2169 | xor %eax,%eax |
| 2170 | .long 0x9066AAF3 # rep stosb |
| 2171 | lea -16(%rdi),%rdi # rewind $out by 1 block |
| 2172 | mov $rnds_,$rounds # restore $rounds |
| 2173 | mov %rdi,%rsi # $inp and $out are the same |
| 2174 | mov $key_,$key # restore $key |
| 2175 | xor $len,$len # len=16 |
| 2176 | jmp .Lcbc_enc_loop # one more spin |
| 2177 | #--------------------------- CBC DECRYPT ------------------------------# |
| 2178 | .align 16 |
| 2179 | .Lcbc_decrypt: |
| 2180 | ___ |
| 2181 | $code.=<<___ if ($win64); |
| 2182 | lea -0x58(%rsp),%rsp |
| 2183 | movaps %xmm6,(%rsp) |
| 2184 | movaps %xmm7,0x10(%rsp) |
| 2185 | movaps %xmm8,0x20(%rsp) |
| 2186 | movaps %xmm9,0x30(%rsp) |
| 2187 | .Lcbc_decrypt_body: |
| 2188 | ___ |
| 2189 | $code.=<<___; |
| 2190 | movups ($ivp),$iv |
| 2191 | mov $rnds_,$rounds |
| 2192 | cmp \$0x70,$len |
| 2193 | jbe .Lcbc_dec_tail |
| 2194 | shr \$1,$rnds_ |
| 2195 | sub \$0x70,$len |
| 2196 | mov $rnds_,$rounds |
| 2197 | movaps $iv,$reserved(%rsp) |
| 2198 | jmp .Lcbc_dec_loop8_enter |
| 2199 | .align 16 |
| 2200 | .Lcbc_dec_loop8: |
| 2201 | movaps $rndkey0,$reserved(%rsp) # save IV |
| 2202 | movups $inout7,($out) |
| 2203 | lea 0x10($out),$out |
| 2204 | .Lcbc_dec_loop8_enter: |
| 2205 | $movkey ($key),$rndkey0 |
| 2206 | movups ($inp),$inout0 # load input |
| 2207 | movups 0x10($inp),$inout1 |
| 2208 | $movkey 16($key),$rndkey1 |
| 2209 | |
| 2210 | lea 32($key),$key |
| 2211 | movdqu 0x20($inp),$inout2 |
| 2212 | xorps $rndkey0,$inout0 |
| 2213 | movdqu 0x30($inp),$inout3 |
| 2214 | xorps $rndkey0,$inout1 |
| 2215 | movdqu 0x40($inp),$inout4 |
| 2216 | aesdec $rndkey1,$inout0 |
| 2217 | pxor $rndkey0,$inout2 |
| 2218 | movdqu 0x50($inp),$inout5 |
| 2219 | aesdec $rndkey1,$inout1 |
| 2220 | pxor $rndkey0,$inout3 |
| 2221 | movdqu 0x60($inp),$inout6 |
| 2222 | aesdec $rndkey1,$inout2 |
| 2223 | pxor $rndkey0,$inout4 |
| 2224 | movdqu 0x70($inp),$inout7 |
| 2225 | aesdec $rndkey1,$inout3 |
| 2226 | pxor $rndkey0,$inout5 |
| 2227 | dec $rounds |
| 2228 | aesdec $rndkey1,$inout4 |
| 2229 | pxor $rndkey0,$inout6 |
| 2230 | aesdec $rndkey1,$inout5 |
| 2231 | pxor $rndkey0,$inout7 |
| 2232 | $movkey ($key),$rndkey0 |
| 2233 | aesdec $rndkey1,$inout6 |
| 2234 | aesdec $rndkey1,$inout7 |
| 2235 | $movkey 16($key),$rndkey1 |
| 2236 | |
| 2237 | call .Ldec_loop8_enter |
| 2238 | |
| 2239 | movups ($inp),$rndkey1 # re-load input |
| 2240 | movups 0x10($inp),$rndkey0 |
| 2241 | xorps $reserved(%rsp),$inout0 # ^= IV |
| 2242 | xorps $rndkey1,$inout1 |
| 2243 | movups 0x20($inp),$rndkey1 |
| 2244 | xorps $rndkey0,$inout2 |
| 2245 | movups 0x30($inp),$rndkey0 |
| 2246 | xorps $rndkey1,$inout3 |
| 2247 | movups 0x40($inp),$rndkey1 |
| 2248 | xorps $rndkey0,$inout4 |
| 2249 | movups 0x50($inp),$rndkey0 |
| 2250 | xorps $rndkey1,$inout5 |
| 2251 | movups 0x60($inp),$rndkey1 |
| 2252 | xorps $rndkey0,$inout6 |
| 2253 | movups 0x70($inp),$rndkey0 # IV |
| 2254 | xorps $rndkey1,$inout7 |
| 2255 | movups $inout0,($out) |
| 2256 | movups $inout1,0x10($out) |
| 2257 | movups $inout2,0x20($out) |
| 2258 | movups $inout3,0x30($out) |
| 2259 | mov $rnds_,$rounds # restore $rounds |
| 2260 | movups $inout4,0x40($out) |
| 2261 | mov $key_,$key # restore $key |
| 2262 | movups $inout5,0x50($out) |
| 2263 | lea 0x80($inp),$inp |
| 2264 | movups $inout6,0x60($out) |
| 2265 | lea 0x70($out),$out |
| 2266 | sub \$0x80,$len |
| 2267 | ja .Lcbc_dec_loop8 |
| 2268 | |
| 2269 | movaps $inout7,$inout0 |
| 2270 | movaps $rndkey0,$iv |
| 2271 | add \$0x70,$len |
| 2272 | jle .Lcbc_dec_tail_collected |
| 2273 | movups $inout0,($out) |
| 2274 | lea 1($rnds_,$rnds_),$rounds |
| 2275 | lea 0x10($out),$out |
| 2276 | .Lcbc_dec_tail: |
| 2277 | movups ($inp),$inout0 |
| 2278 | movaps $inout0,$in0 |
| 2279 | cmp \$0x10,$len |
| 2280 | jbe .Lcbc_dec_one |
| 2281 | |
| 2282 | movups 0x10($inp),$inout1 |
| 2283 | movaps $inout1,$in1 |
| 2284 | cmp \$0x20,$len |
| 2285 | jbe .Lcbc_dec_two |
| 2286 | |
| 2287 | movups 0x20($inp),$inout2 |
| 2288 | movaps $inout2,$in2 |
| 2289 | cmp \$0x30,$len |
| 2290 | jbe .Lcbc_dec_three |
| 2291 | |
| 2292 | movups 0x30($inp),$inout3 |
| 2293 | cmp \$0x40,$len |
| 2294 | jbe .Lcbc_dec_four |
| 2295 | |
| 2296 | movups 0x40($inp),$inout4 |
| 2297 | cmp \$0x50,$len |
| 2298 | jbe .Lcbc_dec_five |
| 2299 | |
| 2300 | movups 0x50($inp),$inout5 |
| 2301 | cmp \$0x60,$len |
| 2302 | jbe .Lcbc_dec_six |
| 2303 | |
| 2304 | movups 0x60($inp),$inout6 |
| 2305 | movaps $iv,$reserved(%rsp) # save IV |
| 2306 | call _aesni_decrypt8 |
| 2307 | movups ($inp),$rndkey1 |
| 2308 | movups 0x10($inp),$rndkey0 |
| 2309 | xorps $reserved(%rsp),$inout0 # ^= IV |
| 2310 | xorps $rndkey1,$inout1 |
| 2311 | movups 0x20($inp),$rndkey1 |
| 2312 | xorps $rndkey0,$inout2 |
| 2313 | movups 0x30($inp),$rndkey0 |
| 2314 | xorps $rndkey1,$inout3 |
| 2315 | movups 0x40($inp),$rndkey1 |
| 2316 | xorps $rndkey0,$inout4 |
| 2317 | movups 0x50($inp),$rndkey0 |
| 2318 | xorps $rndkey1,$inout5 |
| 2319 | movups 0x60($inp),$iv # IV |
| 2320 | xorps $rndkey0,$inout6 |
| 2321 | movups $inout0,($out) |
| 2322 | movups $inout1,0x10($out) |
| 2323 | movups $inout2,0x20($out) |
| 2324 | movups $inout3,0x30($out) |
| 2325 | movups $inout4,0x40($out) |
| 2326 | movups $inout5,0x50($out) |
| 2327 | lea 0x60($out),$out |
| 2328 | movaps $inout6,$inout0 |
| 2329 | sub \$0x70,$len |
| 2330 | jmp .Lcbc_dec_tail_collected |
| 2331 | .align 16 |
| 2332 | .Lcbc_dec_one: |
| 2333 | ___ |
| 2334 | &aesni_generate1("dec",$key,$rounds); |
| 2335 | $code.=<<___; |
| 2336 | xorps $iv,$inout0 |
| 2337 | movaps $in0,$iv |
| 2338 | sub \$0x10,$len |
| 2339 | jmp .Lcbc_dec_tail_collected |
| 2340 | .align 16 |
| 2341 | .Lcbc_dec_two: |
| 2342 | xorps $inout2,$inout2 |
| 2343 | call _aesni_decrypt3 |
| 2344 | xorps $iv,$inout0 |
| 2345 | xorps $in0,$inout1 |
| 2346 | movups $inout0,($out) |
| 2347 | movaps $in1,$iv |
| 2348 | movaps $inout1,$inout0 |
| 2349 | lea 0x10($out),$out |
| 2350 | sub \$0x20,$len |
| 2351 | jmp .Lcbc_dec_tail_collected |
| 2352 | .align 16 |
| 2353 | .Lcbc_dec_three: |
| 2354 | call _aesni_decrypt3 |
| 2355 | xorps $iv,$inout0 |
| 2356 | xorps $in0,$inout1 |
| 2357 | movups $inout0,($out) |
| 2358 | xorps $in1,$inout2 |
| 2359 | movups $inout1,0x10($out) |
| 2360 | movaps $in2,$iv |
| 2361 | movaps $inout2,$inout0 |
| 2362 | lea 0x20($out),$out |
| 2363 | sub \$0x30,$len |
| 2364 | jmp .Lcbc_dec_tail_collected |
| 2365 | .align 16 |
| 2366 | .Lcbc_dec_four: |
| 2367 | call _aesni_decrypt4 |
| 2368 | xorps $iv,$inout0 |
| 2369 | movups 0x30($inp),$iv |
| 2370 | xorps $in0,$inout1 |
| 2371 | movups $inout0,($out) |
| 2372 | xorps $in1,$inout2 |
| 2373 | movups $inout1,0x10($out) |
| 2374 | xorps $in2,$inout3 |
| 2375 | movups $inout2,0x20($out) |
| 2376 | movaps $inout3,$inout0 |
| 2377 | lea 0x30($out),$out |
| 2378 | sub \$0x40,$len |
| 2379 | jmp .Lcbc_dec_tail_collected |
| 2380 | .align 16 |
| 2381 | .Lcbc_dec_five: |
| 2382 | xorps $inout5,$inout5 |
| 2383 | call _aesni_decrypt6 |
| 2384 | movups 0x10($inp),$rndkey1 |
| 2385 | movups 0x20($inp),$rndkey0 |
| 2386 | xorps $iv,$inout0 |
| 2387 | xorps $in0,$inout1 |
| 2388 | xorps $rndkey1,$inout2 |
| 2389 | movups 0x30($inp),$rndkey1 |
| 2390 | xorps $rndkey0,$inout3 |
| 2391 | movups 0x40($inp),$iv |
| 2392 | xorps $rndkey1,$inout4 |
| 2393 | movups $inout0,($out) |
| 2394 | movups $inout1,0x10($out) |
| 2395 | movups $inout2,0x20($out) |
| 2396 | movups $inout3,0x30($out) |
| 2397 | lea 0x40($out),$out |
| 2398 | movaps $inout4,$inout0 |
| 2399 | sub \$0x50,$len |
| 2400 | jmp .Lcbc_dec_tail_collected |
| 2401 | .align 16 |
| 2402 | .Lcbc_dec_six: |
| 2403 | call _aesni_decrypt6 |
| 2404 | movups 0x10($inp),$rndkey1 |
| 2405 | movups 0x20($inp),$rndkey0 |
| 2406 | xorps $iv,$inout0 |
| 2407 | xorps $in0,$inout1 |
| 2408 | xorps $rndkey1,$inout2 |
| 2409 | movups 0x30($inp),$rndkey1 |
| 2410 | xorps $rndkey0,$inout3 |
| 2411 | movups 0x40($inp),$rndkey0 |
| 2412 | xorps $rndkey1,$inout4 |
| 2413 | movups 0x50($inp),$iv |
| 2414 | xorps $rndkey0,$inout5 |
| 2415 | movups $inout0,($out) |
| 2416 | movups $inout1,0x10($out) |
| 2417 | movups $inout2,0x20($out) |
| 2418 | movups $inout3,0x30($out) |
| 2419 | movups $inout4,0x40($out) |
| 2420 | lea 0x50($out),$out |
| 2421 | movaps $inout5,$inout0 |
| 2422 | sub \$0x60,$len |
| 2423 | jmp .Lcbc_dec_tail_collected |
| 2424 | .align 16 |
| 2425 | .Lcbc_dec_tail_collected: |
| 2426 | and \$15,$len |
| 2427 | movups $iv,($ivp) |
| 2428 | jnz .Lcbc_dec_tail_partial |
| 2429 | movups $inout0,($out) |
| 2430 | jmp .Lcbc_dec_ret |
| 2431 | .align 16 |
| 2432 | .Lcbc_dec_tail_partial: |
| 2433 | movaps $inout0,$reserved(%rsp) |
| 2434 | mov \$16,%rcx |
| 2435 | mov $out,%rdi |
| 2436 | sub $len,%rcx |
| 2437 | lea $reserved(%rsp),%rsi |
| 2438 | .long 0x9066A4F3 # rep movsb |
| 2439 | |
| 2440 | .Lcbc_dec_ret: |
| 2441 | ___ |
| 2442 | $code.=<<___ if ($win64); |
| 2443 | movaps (%rsp),%xmm6 |
| 2444 | movaps 0x10(%rsp),%xmm7 |
| 2445 | movaps 0x20(%rsp),%xmm8 |
| 2446 | movaps 0x30(%rsp),%xmm9 |
| 2447 | lea 0x58(%rsp),%rsp |
| 2448 | ___ |
| 2449 | $code.=<<___; |
| 2450 | .Lcbc_ret: |
| 2451 | ret |
| 2452 | .size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt |
| 2453 | ___ |
| 2454 | } |
| 2455 | # int $PREFIX_set_[en|de]crypt_key (const unsigned char *userKey, |
| 2456 | # int bits, AES_KEY *key) |
| 2457 | { my ($inp,$bits,$key) = @_4args; |
| 2458 | $bits =~ s/%r/%e/; |
| 2459 | |
| 2460 | $code.=<<___; |
| 2461 | .globl ${PREFIX}_set_decrypt_key |
| 2462 | .type ${PREFIX}_set_decrypt_key,\@abi-omnipotent |
| 2463 | .align 16 |
| 2464 | ${PREFIX}_set_decrypt_key: |
| 2465 | .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 |
| 2466 | call __aesni_set_encrypt_key |
| 2467 | shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key |
| 2468 | test %eax,%eax |
| 2469 | jnz .Ldec_key_ret |
| 2470 | lea 16($key,$bits),$inp # points at the end of key schedule |
| 2471 | |
| 2472 | $movkey ($key),%xmm0 # just swap |
| 2473 | $movkey ($inp),%xmm1 |
| 2474 | $movkey %xmm0,($inp) |
| 2475 | $movkey %xmm1,($key) |
| 2476 | lea 16($key),$key |
| 2477 | lea -16($inp),$inp |
| 2478 | |
| 2479 | .Ldec_key_inverse: |
| 2480 | $movkey ($key),%xmm0 # swap and inverse |
| 2481 | $movkey ($inp),%xmm1 |
| 2482 | aesimc %xmm0,%xmm0 |
| 2483 | aesimc %xmm1,%xmm1 |
| 2484 | lea 16($key),$key |
| 2485 | lea -16($inp),$inp |
| 2486 | $movkey %xmm0,16($inp) |
| 2487 | $movkey %xmm1,-16($key) |
| 2488 | cmp $key,$inp |
| 2489 | ja .Ldec_key_inverse |
| 2490 | |
| 2491 | $movkey ($key),%xmm0 # inverse middle |
| 2492 | aesimc %xmm0,%xmm0 |
| 2493 | $movkey %xmm0,($inp) |
| 2494 | .Ldec_key_ret: |
| 2495 | add \$8,%rsp |
| 2496 | ret |
| 2497 | .LSEH_end_set_decrypt_key: |
| 2498 | .size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key |
| 2499 | ___ |
| 2500 | |
| 2501 | # This is based on submission by |
| 2502 | # |
| 2503 | # Huang Ying <ying.huang@intel.com> |
| 2504 | # Vinodh Gopal <vinodh.gopal@intel.com> |
| 2505 | # Kahraman Akdemir |
| 2506 | # |
| 2507 | # Agressively optimized in respect to aeskeygenassist's critical path |
| 2508 | # and is contained in %xmm0-5 to meet Win64 ABI requirement. |
| 2509 | # |
| 2510 | $code.=<<___; |
| 2511 | .globl ${PREFIX}_set_encrypt_key |
| 2512 | .type ${PREFIX}_set_encrypt_key,\@abi-omnipotent |
| 2513 | .align 16 |
| 2514 | ${PREFIX}_set_encrypt_key: |
| 2515 | __aesni_set_encrypt_key: |
| 2516 | .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 |
| 2517 | mov \$-1,%rax |
| 2518 | test $inp,$inp |
| 2519 | jz .Lenc_key_ret |
| 2520 | test $key,$key |
| 2521 | jz .Lenc_key_ret |
| 2522 | |
| 2523 | movups ($inp),%xmm0 # pull first 128 bits of *userKey |
| 2524 | xorps %xmm4,%xmm4 # low dword of xmm4 is assumed 0 |
| 2525 | lea 16($key),%rax |
| 2526 | cmp \$256,$bits |
| 2527 | je .L14rounds |
| 2528 | cmp \$192,$bits |
| 2529 | je .L12rounds |
| 2530 | cmp \$128,$bits |
| 2531 | jne .Lbad_keybits |
| 2532 | |
| 2533 | .L10rounds: |
| 2534 | mov \$9,$bits # 10 rounds for 128-bit key |
| 2535 | $movkey %xmm0,($key) # round 0 |
| 2536 | aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1 |
| 2537 | call .Lkey_expansion_128_cold |
| 2538 | aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2 |
| 2539 | call .Lkey_expansion_128 |
| 2540 | aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3 |
| 2541 | call .Lkey_expansion_128 |
| 2542 | aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4 |
| 2543 | call .Lkey_expansion_128 |
| 2544 | aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5 |
| 2545 | call .Lkey_expansion_128 |
| 2546 | aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6 |
| 2547 | call .Lkey_expansion_128 |
| 2548 | aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7 |
| 2549 | call .Lkey_expansion_128 |
| 2550 | aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8 |
| 2551 | call .Lkey_expansion_128 |
| 2552 | aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9 |
| 2553 | call .Lkey_expansion_128 |
| 2554 | aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10 |
| 2555 | call .Lkey_expansion_128 |
| 2556 | $movkey %xmm0,(%rax) |
| 2557 | mov $bits,80(%rax) # 240(%rdx) |
| 2558 | xor %eax,%eax |
| 2559 | jmp .Lenc_key_ret |
| 2560 | |
| 2561 | .align 16 |
| 2562 | .L12rounds: |
| 2563 | movq 16($inp),%xmm2 # remaining 1/3 of *userKey |
| 2564 | mov \$11,$bits # 12 rounds for 192 |
| 2565 | $movkey %xmm0,($key) # round 0 |
| 2566 | aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2 |
| 2567 | call .Lkey_expansion_192a_cold |
| 2568 | aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3 |
| 2569 | call .Lkey_expansion_192b |
| 2570 | aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5 |
| 2571 | call .Lkey_expansion_192a |
| 2572 | aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6 |
| 2573 | call .Lkey_expansion_192b |
| 2574 | aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8 |
| 2575 | call .Lkey_expansion_192a |
| 2576 | aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9 |
| 2577 | call .Lkey_expansion_192b |
| 2578 | aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11 |
| 2579 | call .Lkey_expansion_192a |
| 2580 | aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12 |
| 2581 | call .Lkey_expansion_192b |
| 2582 | $movkey %xmm0,(%rax) |
| 2583 | mov $bits,48(%rax) # 240(%rdx) |
| 2584 | xor %rax, %rax |
| 2585 | jmp .Lenc_key_ret |
| 2586 | |
| 2587 | .align 16 |
| 2588 | .L14rounds: |
| 2589 | movups 16($inp),%xmm2 # remaning half of *userKey |
| 2590 | mov \$13,$bits # 14 rounds for 256 |
| 2591 | lea 16(%rax),%rax |
| 2592 | $movkey %xmm0,($key) # round 0 |
| 2593 | $movkey %xmm2,16($key) # round 1 |
| 2594 | aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2 |
| 2595 | call .Lkey_expansion_256a_cold |
| 2596 | aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3 |
| 2597 | call .Lkey_expansion_256b |
| 2598 | aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4 |
| 2599 | call .Lkey_expansion_256a |
| 2600 | aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5 |
| 2601 | call .Lkey_expansion_256b |
| 2602 | aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6 |
| 2603 | call .Lkey_expansion_256a |
| 2604 | aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7 |
| 2605 | call .Lkey_expansion_256b |
| 2606 | aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8 |
| 2607 | call .Lkey_expansion_256a |
| 2608 | aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9 |
| 2609 | call .Lkey_expansion_256b |
| 2610 | aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10 |
| 2611 | call .Lkey_expansion_256a |
| 2612 | aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11 |
| 2613 | call .Lkey_expansion_256b |
| 2614 | aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12 |
| 2615 | call .Lkey_expansion_256a |
| 2616 | aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13 |
| 2617 | call .Lkey_expansion_256b |
| 2618 | aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14 |
| 2619 | call .Lkey_expansion_256a |
| 2620 | $movkey %xmm0,(%rax) |
| 2621 | mov $bits,16(%rax) # 240(%rdx) |
| 2622 | xor %rax,%rax |
| 2623 | jmp .Lenc_key_ret |
| 2624 | |
| 2625 | .align 16 |
| 2626 | .Lbad_keybits: |
| 2627 | mov \$-2,%rax |
| 2628 | .Lenc_key_ret: |
| 2629 | add \$8,%rsp |
| 2630 | ret |
| 2631 | .LSEH_end_set_encrypt_key: |
| 2632 | |
| 2633 | .align 16 |
| 2634 | .Lkey_expansion_128: |
| 2635 | $movkey %xmm0,(%rax) |
| 2636 | lea 16(%rax),%rax |
| 2637 | .Lkey_expansion_128_cold: |
| 2638 | shufps \$0b00010000,%xmm0,%xmm4 |
| 2639 | xorps %xmm4, %xmm0 |
| 2640 | shufps \$0b10001100,%xmm0,%xmm4 |
| 2641 | xorps %xmm4, %xmm0 |
| 2642 | shufps \$0b11111111,%xmm1,%xmm1 # critical path |
| 2643 | xorps %xmm1,%xmm0 |
| 2644 | ret |
| 2645 | |
| 2646 | .align 16 |
| 2647 | .Lkey_expansion_192a: |
| 2648 | $movkey %xmm0,(%rax) |
| 2649 | lea 16(%rax),%rax |
| 2650 | .Lkey_expansion_192a_cold: |
| 2651 | movaps %xmm2, %xmm5 |
| 2652 | .Lkey_expansion_192b_warm: |
| 2653 | shufps \$0b00010000,%xmm0,%xmm4 |
| 2654 | movdqa %xmm2,%xmm3 |
| 2655 | xorps %xmm4,%xmm0 |
| 2656 | shufps \$0b10001100,%xmm0,%xmm4 |
| 2657 | pslldq \$4,%xmm3 |
| 2658 | xorps %xmm4,%xmm0 |
| 2659 | pshufd \$0b01010101,%xmm1,%xmm1 # critical path |
| 2660 | pxor %xmm3,%xmm2 |
| 2661 | pxor %xmm1,%xmm0 |
| 2662 | pshufd \$0b11111111,%xmm0,%xmm3 |
| 2663 | pxor %xmm3,%xmm2 |
| 2664 | ret |
| 2665 | |
| 2666 | .align 16 |
| 2667 | .Lkey_expansion_192b: |
| 2668 | movaps %xmm0,%xmm3 |
| 2669 | shufps \$0b01000100,%xmm0,%xmm5 |
| 2670 | $movkey %xmm5,(%rax) |
| 2671 | shufps \$0b01001110,%xmm2,%xmm3 |
| 2672 | $movkey %xmm3,16(%rax) |
| 2673 | lea 32(%rax),%rax |
| 2674 | jmp .Lkey_expansion_192b_warm |
| 2675 | |
| 2676 | .align 16 |
| 2677 | .Lkey_expansion_256a: |
| 2678 | $movkey %xmm2,(%rax) |
| 2679 | lea 16(%rax),%rax |
| 2680 | .Lkey_expansion_256a_cold: |
| 2681 | shufps \$0b00010000,%xmm0,%xmm4 |
| 2682 | xorps %xmm4,%xmm0 |
| 2683 | shufps \$0b10001100,%xmm0,%xmm4 |
| 2684 | xorps %xmm4,%xmm0 |
| 2685 | shufps \$0b11111111,%xmm1,%xmm1 # critical path |
| 2686 | xorps %xmm1,%xmm0 |
| 2687 | ret |
| 2688 | |
| 2689 | .align 16 |
| 2690 | .Lkey_expansion_256b: |
| 2691 | $movkey %xmm0,(%rax) |
| 2692 | lea 16(%rax),%rax |
| 2693 | |
| 2694 | shufps \$0b00010000,%xmm2,%xmm4 |
| 2695 | xorps %xmm4,%xmm2 |
| 2696 | shufps \$0b10001100,%xmm2,%xmm4 |
| 2697 | xorps %xmm4,%xmm2 |
| 2698 | shufps \$0b10101010,%xmm1,%xmm1 # critical path |
| 2699 | xorps %xmm1,%xmm2 |
| 2700 | ret |
| 2701 | .size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key |
| 2702 | .size __aesni_set_encrypt_key,.-__aesni_set_encrypt_key |
| 2703 | ___ |
| 2704 | } |
| 2705 | |
| 2706 | $code.=<<___; |
| 2707 | .align 64 |
| 2708 | .Lbswap_mask: |
| 2709 | .byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0 |
| 2710 | .Lincrement32: |
| 2711 | .long 6,6,6,0 |
| 2712 | .Lincrement64: |
| 2713 | .long 1,0,0,0 |
| 2714 | .Lxts_magic: |
| 2715 | .long 0x87,0,1,0 |
| 2716 | |
| 2717 | .asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>" |
| 2718 | .align 64 |
| 2719 | ___ |
| 2720 | |
| 2721 | # EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, |
| 2722 | # CONTEXT *context,DISPATCHER_CONTEXT *disp) |
| 2723 | if ($win64) { |
| 2724 | $rec="%rcx"; |
| 2725 | $frame="%rdx"; |
| 2726 | $context="%r8"; |
| 2727 | $disp="%r9"; |
| 2728 | |
| 2729 | $code.=<<___; |
| 2730 | .extern __imp_RtlVirtualUnwind |
| 2731 | ___ |
| 2732 | $code.=<<___ if ($PREFIX eq "aesni"); |
| 2733 | .type ecb_se_handler,\@abi-omnipotent |
| 2734 | .align 16 |
| 2735 | ecb_se_handler: |
| 2736 | push %rsi |
| 2737 | push %rdi |
| 2738 | push %rbx |
| 2739 | push %rbp |
| 2740 | push %r12 |
| 2741 | push %r13 |
| 2742 | push %r14 |
| 2743 | push %r15 |
| 2744 | pushfq |
| 2745 | sub \$64,%rsp |
| 2746 | |
| 2747 | mov 152($context),%rax # pull context->Rsp |
| 2748 | |
| 2749 | jmp .Lcommon_seh_tail |
| 2750 | .size ecb_se_handler,.-ecb_se_handler |
| 2751 | |
| 2752 | .type ccm64_se_handler,\@abi-omnipotent |
| 2753 | .align 16 |
| 2754 | ccm64_se_handler: |
| 2755 | push %rsi |
| 2756 | push %rdi |
| 2757 | push %rbx |
| 2758 | push %rbp |
| 2759 | push %r12 |
| 2760 | push %r13 |
| 2761 | push %r14 |
| 2762 | push %r15 |
| 2763 | pushfq |
| 2764 | sub \$64,%rsp |
| 2765 | |
| 2766 | mov 120($context),%rax # pull context->Rax |
| 2767 | mov 248($context),%rbx # pull context->Rip |
| 2768 | |
| 2769 | mov 8($disp),%rsi # disp->ImageBase |
| 2770 | mov 56($disp),%r11 # disp->HandlerData |
| 2771 | |
| 2772 | mov 0(%r11),%r10d # HandlerData[0] |
| 2773 | lea (%rsi,%r10),%r10 # prologue label |
| 2774 | cmp %r10,%rbx # context->Rip<prologue label |
| 2775 | jb .Lcommon_seh_tail |
| 2776 | |
| 2777 | mov 152($context),%rax # pull context->Rsp |
| 2778 | |
| 2779 | mov 4(%r11),%r10d # HandlerData[1] |
| 2780 | lea (%rsi,%r10),%r10 # epilogue label |
| 2781 | cmp %r10,%rbx # context->Rip>=epilogue label |
| 2782 | jae .Lcommon_seh_tail |
| 2783 | |
| 2784 | lea 0(%rax),%rsi # %xmm save area |
| 2785 | lea 512($context),%rdi # &context.Xmm6 |
| 2786 | mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) |
| 2787 | .long 0xa548f3fc # cld; rep movsq |
| 2788 | lea 0x58(%rax),%rax # adjust stack pointer |
| 2789 | |
| 2790 | jmp .Lcommon_seh_tail |
| 2791 | .size ccm64_se_handler,.-ccm64_se_handler |
| 2792 | |
| 2793 | .type ctr32_se_handler,\@abi-omnipotent |
| 2794 | .align 16 |
| 2795 | ctr32_se_handler: |
| 2796 | push %rsi |
| 2797 | push %rdi |
| 2798 | push %rbx |
| 2799 | push %rbp |
| 2800 | push %r12 |
| 2801 | push %r13 |
| 2802 | push %r14 |
| 2803 | push %r15 |
| 2804 | pushfq |
| 2805 | sub \$64,%rsp |
| 2806 | |
| 2807 | mov 120($context),%rax # pull context->Rax |
| 2808 | mov 248($context),%rbx # pull context->Rip |
| 2809 | |
| 2810 | lea .Lctr32_body(%rip),%r10 |
| 2811 | cmp %r10,%rbx # context->Rip<"prologue" label |
| 2812 | jb .Lcommon_seh_tail |
| 2813 | |
| 2814 | mov 152($context),%rax # pull context->Rsp |
| 2815 | |
| 2816 | lea .Lctr32_ret(%rip),%r10 |
| 2817 | cmp %r10,%rbx |
| 2818 | jae .Lcommon_seh_tail |
| 2819 | |
| 2820 | lea 0x20(%rax),%rsi # %xmm save area |
| 2821 | lea 512($context),%rdi # &context.Xmm6 |
| 2822 | mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) |
| 2823 | .long 0xa548f3fc # cld; rep movsq |
| 2824 | lea 0xc8(%rax),%rax # adjust stack pointer |
| 2825 | |
| 2826 | jmp .Lcommon_seh_tail |
| 2827 | .size ctr32_se_handler,.-ctr32_se_handler |
| 2828 | |
| 2829 | .type xts_se_handler,\@abi-omnipotent |
| 2830 | .align 16 |
| 2831 | xts_se_handler: |
| 2832 | push %rsi |
| 2833 | push %rdi |
| 2834 | push %rbx |
| 2835 | push %rbp |
| 2836 | push %r12 |
| 2837 | push %r13 |
| 2838 | push %r14 |
| 2839 | push %r15 |
| 2840 | pushfq |
| 2841 | sub \$64,%rsp |
| 2842 | |
| 2843 | mov 120($context),%rax # pull context->Rax |
| 2844 | mov 248($context),%rbx # pull context->Rip |
| 2845 | |
| 2846 | mov 8($disp),%rsi # disp->ImageBase |
| 2847 | mov 56($disp),%r11 # disp->HandlerData |
| 2848 | |
| 2849 | mov 0(%r11),%r10d # HandlerData[0] |
| 2850 | lea (%rsi,%r10),%r10 # prologue lable |
| 2851 | cmp %r10,%rbx # context->Rip<prologue label |
| 2852 | jb .Lcommon_seh_tail |
| 2853 | |
| 2854 | mov 152($context),%rax # pull context->Rsp |
| 2855 | |
| 2856 | mov 4(%r11),%r10d # HandlerData[1] |
| 2857 | lea (%rsi,%r10),%r10 # epilogue label |
| 2858 | cmp %r10,%rbx # context->Rip>=epilogue label |
| 2859 | jae .Lcommon_seh_tail |
| 2860 | |
| 2861 | lea 0x60(%rax),%rsi # %xmm save area |
| 2862 | lea 512($context),%rdi # & context.Xmm6 |
| 2863 | mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) |
| 2864 | .long 0xa548f3fc # cld; rep movsq |
| 2865 | lea 0x68+160(%rax),%rax # adjust stack pointer |
| 2866 | |
| 2867 | jmp .Lcommon_seh_tail |
| 2868 | .size xts_se_handler,.-xts_se_handler |
| 2869 | ___ |
| 2870 | $code.=<<___; |
| 2871 | .type cbc_se_handler,\@abi-omnipotent |
| 2872 | .align 16 |
| 2873 | cbc_se_handler: |
| 2874 | push %rsi |
| 2875 | push %rdi |
| 2876 | push %rbx |
| 2877 | push %rbp |
| 2878 | push %r12 |
| 2879 | push %r13 |
| 2880 | push %r14 |
| 2881 | push %r15 |
| 2882 | pushfq |
| 2883 | sub \$64,%rsp |
| 2884 | |
| 2885 | mov 152($context),%rax # pull context->Rsp |
| 2886 | mov 248($context),%rbx # pull context->Rip |
| 2887 | |
| 2888 | lea .Lcbc_decrypt(%rip),%r10 |
| 2889 | cmp %r10,%rbx # context->Rip<"prologue" label |
| 2890 | jb .Lcommon_seh_tail |
| 2891 | |
| 2892 | lea .Lcbc_decrypt_body(%rip),%r10 |
| 2893 | cmp %r10,%rbx # context->Rip<cbc_decrypt_body |
| 2894 | jb .Lrestore_cbc_rax |
| 2895 | |
| 2896 | lea .Lcbc_ret(%rip),%r10 |
| 2897 | cmp %r10,%rbx # context->Rip>="epilogue" label |
| 2898 | jae .Lcommon_seh_tail |
| 2899 | |
| 2900 | lea 0(%rax),%rsi # top of stack |
| 2901 | lea 512($context),%rdi # &context.Xmm6 |
| 2902 | mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) |
| 2903 | .long 0xa548f3fc # cld; rep movsq |
| 2904 | lea 0x58(%rax),%rax # adjust stack pointer |
| 2905 | jmp .Lcommon_seh_tail |
| 2906 | |
| 2907 | .Lrestore_cbc_rax: |
| 2908 | mov 120($context),%rax |
| 2909 | |
| 2910 | .Lcommon_seh_tail: |
| 2911 | mov 8(%rax),%rdi |
| 2912 | mov 16(%rax),%rsi |
| 2913 | mov %rax,152($context) # restore context->Rsp |
| 2914 | mov %rsi,168($context) # restore context->Rsi |
| 2915 | mov %rdi,176($context) # restore context->Rdi |
| 2916 | |
| 2917 | mov 40($disp),%rdi # disp->ContextRecord |
| 2918 | mov $context,%rsi # context |
| 2919 | mov \$154,%ecx # sizeof(CONTEXT) |
| 2920 | .long 0xa548f3fc # cld; rep movsq |
| 2921 | |
| 2922 | mov $disp,%rsi |
| 2923 | xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER |
| 2924 | mov 8(%rsi),%rdx # arg2, disp->ImageBase |
| 2925 | mov 0(%rsi),%r8 # arg3, disp->ControlPc |
| 2926 | mov 16(%rsi),%r9 # arg4, disp->FunctionEntry |
| 2927 | mov 40(%rsi),%r10 # disp->ContextRecord |
| 2928 | lea 56(%rsi),%r11 # &disp->HandlerData |
| 2929 | lea 24(%rsi),%r12 # &disp->EstablisherFrame |
| 2930 | mov %r10,32(%rsp) # arg5 |
| 2931 | mov %r11,40(%rsp) # arg6 |
| 2932 | mov %r12,48(%rsp) # arg7 |
| 2933 | mov %rcx,56(%rsp) # arg8, (NULL) |
| 2934 | call *__imp_RtlVirtualUnwind(%rip) |
| 2935 | |
| 2936 | mov \$1,%eax # ExceptionContinueSearch |
| 2937 | add \$64,%rsp |
| 2938 | popfq |
| 2939 | pop %r15 |
| 2940 | pop %r14 |
| 2941 | pop %r13 |
| 2942 | pop %r12 |
| 2943 | pop %rbp |
| 2944 | pop %rbx |
| 2945 | pop %rdi |
| 2946 | pop %rsi |
| 2947 | ret |
| 2948 | .size cbc_se_handler,.-cbc_se_handler |
| 2949 | |
| 2950 | .section .pdata |
| 2951 | .align 4 |
| 2952 | ___ |
| 2953 | $code.=<<___ if ($PREFIX eq "aesni"); |
| 2954 | .rva .LSEH_begin_aesni_ecb_encrypt |
| 2955 | .rva .LSEH_end_aesni_ecb_encrypt |
| 2956 | .rva .LSEH_info_ecb |
| 2957 | |
| 2958 | .rva .LSEH_begin_aesni_ccm64_encrypt_blocks |
| 2959 | .rva .LSEH_end_aesni_ccm64_encrypt_blocks |
| 2960 | .rva .LSEH_info_ccm64_enc |
| 2961 | |
| 2962 | .rva .LSEH_begin_aesni_ccm64_decrypt_blocks |
| 2963 | .rva .LSEH_end_aesni_ccm64_decrypt_blocks |
| 2964 | .rva .LSEH_info_ccm64_dec |
| 2965 | |
| 2966 | .rva .LSEH_begin_aesni_ctr32_encrypt_blocks |
| 2967 | .rva .LSEH_end_aesni_ctr32_encrypt_blocks |
| 2968 | .rva .LSEH_info_ctr32 |
| 2969 | |
| 2970 | .rva .LSEH_begin_aesni_xts_encrypt |
| 2971 | .rva .LSEH_end_aesni_xts_encrypt |
| 2972 | .rva .LSEH_info_xts_enc |
| 2973 | |
| 2974 | .rva .LSEH_begin_aesni_xts_decrypt |
| 2975 | .rva .LSEH_end_aesni_xts_decrypt |
| 2976 | .rva .LSEH_info_xts_dec |
| 2977 | ___ |
| 2978 | $code.=<<___; |
| 2979 | .rva .LSEH_begin_${PREFIX}_cbc_encrypt |
| 2980 | .rva .LSEH_end_${PREFIX}_cbc_encrypt |
| 2981 | .rva .LSEH_info_cbc |
| 2982 | |
| 2983 | .rva ${PREFIX}_set_decrypt_key |
| 2984 | .rva .LSEH_end_set_decrypt_key |
| 2985 | .rva .LSEH_info_key |
| 2986 | |
| 2987 | .rva ${PREFIX}_set_encrypt_key |
| 2988 | .rva .LSEH_end_set_encrypt_key |
| 2989 | .rva .LSEH_info_key |
| 2990 | .section .xdata |
| 2991 | .align 8 |
| 2992 | ___ |
| 2993 | $code.=<<___ if ($PREFIX eq "aesni"); |
| 2994 | .LSEH_info_ecb: |
| 2995 | .byte 9,0,0,0 |
| 2996 | .rva ecb_se_handler |
| 2997 | .LSEH_info_ccm64_enc: |
| 2998 | .byte 9,0,0,0 |
| 2999 | .rva ccm64_se_handler |
| 3000 | .rva .Lccm64_enc_body,.Lccm64_enc_ret # HandlerData[] |
| 3001 | .LSEH_info_ccm64_dec: |
| 3002 | .byte 9,0,0,0 |
| 3003 | .rva ccm64_se_handler |
| 3004 | .rva .Lccm64_dec_body,.Lccm64_dec_ret # HandlerData[] |
| 3005 | .LSEH_info_ctr32: |
| 3006 | .byte 9,0,0,0 |
| 3007 | .rva ctr32_se_handler |
| 3008 | .LSEH_info_xts_enc: |
| 3009 | .byte 9,0,0,0 |
| 3010 | .rva xts_se_handler |
| 3011 | .rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[] |
| 3012 | .LSEH_info_xts_dec: |
| 3013 | .byte 9,0,0,0 |
| 3014 | .rva xts_se_handler |
| 3015 | .rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[] |
| 3016 | ___ |
| 3017 | $code.=<<___; |
| 3018 | .LSEH_info_cbc: |
| 3019 | .byte 9,0,0,0 |
| 3020 | .rva cbc_se_handler |
| 3021 | .LSEH_info_key: |
| 3022 | .byte 0x01,0x04,0x01,0x00 |
| 3023 | .byte 0x04,0x02,0x00,0x00 # sub rsp,8 |
| 3024 | ___ |
| 3025 | } |
| 3026 | |
| 3027 | sub rex { |
| 3028 | local *opcode=shift; |
| 3029 | my ($dst,$src)=@_; |
| 3030 | my $rex=0; |
| 3031 | |
| 3032 | $rex|=0x04 if($dst>=8); |
| 3033 | $rex|=0x01 if($src>=8); |
| 3034 | push @opcode,$rex|0x40 if($rex); |
| 3035 | } |
| 3036 | |
| 3037 | sub aesni { |
| 3038 | my $line=shift; |
| 3039 | my @opcode=(0x66); |
| 3040 | |
| 3041 | if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) { |
| 3042 | rex(\@opcode,$4,$3); |
| 3043 | push @opcode,0x0f,0x3a,0xdf; |
| 3044 | push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M |
| 3045 | my $c=$2; |
| 3046 | push @opcode,$c=~/^0/?oct($c):$c; |
| 3047 | return ".byte\t".join(',',@opcode); |
| 3048 | } |
| 3049 | elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) { |
| 3050 | my %opcodelet = ( |
| 3051 | "aesimc" => 0xdb, |
| 3052 | "aesenc" => 0xdc, "aesenclast" => 0xdd, |
| 3053 | "aesdec" => 0xde, "aesdeclast" => 0xdf |
| 3054 | ); |
| 3055 | return undef if (!defined($opcodelet{$1})); |
| 3056 | rex(\@opcode,$3,$2); |
| 3057 | push @opcode,0x0f,0x38,$opcodelet{$1}; |
| 3058 | push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M |
| 3059 | return ".byte\t".join(',',@opcode); |
| 3060 | } |
| 3061 | return $line; |
| 3062 | } |
| 3063 | |
| 3064 | $code =~ s/\`([^\`]*)\`/eval($1)/gem; |
| 3065 | $code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem; |
| 3066 | |
| 3067 | print $code; |
| 3068 | |
| 3069 | close STDOUT; |