Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -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 STDOUT,"| $^X $xlate $flavour $output"; |
| 176 | |
| 177 | $movkey = $PREFIX eq "aesni" ? "movups" : "movups"; |
| 178 | @_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order |
| 179 | ("%rdi","%rsi","%rdx","%rcx"); # Unix order |
| 180 | |
| 181 | $code=".text\n"; |
| 182 | |
| 183 | $rounds="%eax"; # input to and changed by aesni_[en|de]cryptN !!! |
| 184 | # this is natural Unix argument order for public $PREFIX_[ecb|cbc]_encrypt ... |
| 185 | $inp="%rdi"; |
| 186 | $out="%rsi"; |
| 187 | $len="%rdx"; |
| 188 | $key="%rcx"; # input to and changed by aesni_[en|de]cryptN !!! |
| 189 | $ivp="%r8"; # cbc, ctr, ... |
| 190 | |
| 191 | $rnds_="%r10d"; # backup copy for $rounds |
| 192 | $key_="%r11"; # backup copy for $key |
| 193 | |
| 194 | # %xmm register layout |
| 195 | $rndkey0="%xmm0"; $rndkey1="%xmm1"; |
| 196 | $inout0="%xmm2"; $inout1="%xmm3"; |
| 197 | $inout2="%xmm4"; $inout3="%xmm5"; |
| 198 | $inout4="%xmm6"; $inout5="%xmm7"; |
| 199 | $inout6="%xmm8"; $inout7="%xmm9"; |
| 200 | |
| 201 | $in2="%xmm6"; $in1="%xmm7"; # used in CBC decrypt, CTR, ... |
| 202 | $in0="%xmm8"; $iv="%xmm9"; |
| 203 | |
| 204 | # Inline version of internal aesni_[en|de]crypt1. |
| 205 | # |
| 206 | # Why folded loop? Because aes[enc|dec] is slow enough to accommodate |
| 207 | # cycles which take care of loop variables... |
| 208 | { my $sn; |
| 209 | sub aesni_generate1 { |
| 210 | my ($p,$key,$rounds,$inout,$ivec)=@_; $inout=$inout0 if (!defined($inout)); |
| 211 | ++$sn; |
| 212 | $code.=<<___; |
| 213 | $movkey ($key),$rndkey0 |
| 214 | $movkey 16($key),$rndkey1 |
| 215 | ___ |
| 216 | $code.=<<___ if (defined($ivec)); |
| 217 | xorps $rndkey0,$ivec |
| 218 | lea 32($key),$key |
| 219 | xorps $ivec,$inout |
| 220 | ___ |
| 221 | $code.=<<___ if (!defined($ivec)); |
| 222 | lea 32($key),$key |
| 223 | xorps $rndkey0,$inout |
| 224 | ___ |
| 225 | $code.=<<___; |
| 226 | .Loop_${p}1_$sn: |
| 227 | aes${p} $rndkey1,$inout |
| 228 | dec $rounds |
| 229 | $movkey ($key),$rndkey1 |
| 230 | lea 16($key),$key |
| 231 | jnz .Loop_${p}1_$sn # loop body is 16 bytes |
| 232 | aes${p}last $rndkey1,$inout |
| 233 | ___ |
| 234 | }} |
| 235 | # void $PREFIX_[en|de]crypt (const void *inp,void *out,const AES_KEY *key); |
| 236 | # |
| 237 | { my ($inp,$out,$key) = @_4args; |
| 238 | |
| 239 | $code.=<<___; |
| 240 | .globl ${PREFIX}_encrypt |
| 241 | .type ${PREFIX}_encrypt,\@abi-omnipotent |
| 242 | .align 16 |
| 243 | ${PREFIX}_encrypt: |
| 244 | movups ($inp),$inout0 # load input |
| 245 | mov 240($key),$rounds # key->rounds |
| 246 | ___ |
| 247 | &aesni_generate1("enc",$key,$rounds); |
| 248 | $code.=<<___; |
| 249 | movups $inout0,($out) # output |
| 250 | ret |
| 251 | .size ${PREFIX}_encrypt,.-${PREFIX}_encrypt |
| 252 | |
| 253 | .globl ${PREFIX}_decrypt |
| 254 | .type ${PREFIX}_decrypt,\@abi-omnipotent |
| 255 | .align 16 |
| 256 | ${PREFIX}_decrypt: |
| 257 | movups ($inp),$inout0 # load input |
| 258 | mov 240($key),$rounds # key->rounds |
| 259 | ___ |
| 260 | &aesni_generate1("dec",$key,$rounds); |
| 261 | $code.=<<___; |
| 262 | movups $inout0,($out) # output |
| 263 | ret |
| 264 | .size ${PREFIX}_decrypt, .-${PREFIX}_decrypt |
| 265 | ___ |
| 266 | } |
| 267 | |
| 268 | # _aesni_[en|de]cryptN are private interfaces, N denotes interleave |
| 269 | # factor. Why 3x subroutine were originally used in loops? Even though |
| 270 | # aes[enc|dec] latency was originally 6, it could be scheduled only |
| 271 | # every *2nd* cycle. Thus 3x interleave was the one providing optimal |
| 272 | # utilization, i.e. when subroutine's throughput is virtually same as |
| 273 | # of non-interleaved subroutine [for number of input blocks up to 3]. |
| 274 | # This is why it makes no sense to implement 2x subroutine. |
| 275 | # aes[enc|dec] latency in next processor generation is 8, but the |
| 276 | # instructions can be scheduled every cycle. Optimal interleave for |
| 277 | # new processor is therefore 8x... |
| 278 | sub aesni_generate3 { |
| 279 | my $dir=shift; |
| 280 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 281 | # preserved. $inout[0-2] is cipher/clear text... |
| 282 | $code.=<<___; |
| 283 | .type _aesni_${dir}rypt3,\@abi-omnipotent |
| 284 | .align 16 |
| 285 | _aesni_${dir}rypt3: |
| 286 | $movkey ($key),$rndkey0 |
| 287 | shr \$1,$rounds |
| 288 | $movkey 16($key),$rndkey1 |
| 289 | lea 32($key),$key |
| 290 | xorps $rndkey0,$inout0 |
| 291 | xorps $rndkey0,$inout1 |
| 292 | xorps $rndkey0,$inout2 |
| 293 | $movkey ($key),$rndkey0 |
| 294 | |
| 295 | .L${dir}_loop3: |
| 296 | aes${dir} $rndkey1,$inout0 |
| 297 | aes${dir} $rndkey1,$inout1 |
| 298 | dec $rounds |
| 299 | aes${dir} $rndkey1,$inout2 |
| 300 | $movkey 16($key),$rndkey1 |
| 301 | aes${dir} $rndkey0,$inout0 |
| 302 | aes${dir} $rndkey0,$inout1 |
| 303 | lea 32($key),$key |
| 304 | aes${dir} $rndkey0,$inout2 |
| 305 | $movkey ($key),$rndkey0 |
| 306 | jnz .L${dir}_loop3 |
| 307 | |
| 308 | aes${dir} $rndkey1,$inout0 |
| 309 | aes${dir} $rndkey1,$inout1 |
| 310 | aes${dir} $rndkey1,$inout2 |
| 311 | aes${dir}last $rndkey0,$inout0 |
| 312 | aes${dir}last $rndkey0,$inout1 |
| 313 | aes${dir}last $rndkey0,$inout2 |
| 314 | ret |
| 315 | .size _aesni_${dir}rypt3,.-_aesni_${dir}rypt3 |
| 316 | ___ |
| 317 | } |
| 318 | # 4x interleave is implemented to improve small block performance, |
| 319 | # most notably [and naturally] 4 block by ~30%. One can argue that one |
| 320 | # should have implemented 5x as well, but improvement would be <20%, |
| 321 | # so it's not worth it... |
| 322 | sub aesni_generate4 { |
| 323 | my $dir=shift; |
| 324 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 325 | # preserved. $inout[0-3] is cipher/clear text... |
| 326 | $code.=<<___; |
| 327 | .type _aesni_${dir}rypt4,\@abi-omnipotent |
| 328 | .align 16 |
| 329 | _aesni_${dir}rypt4: |
| 330 | $movkey ($key),$rndkey0 |
| 331 | shr \$1,$rounds |
| 332 | $movkey 16($key),$rndkey1 |
| 333 | lea 32($key),$key |
| 334 | xorps $rndkey0,$inout0 |
| 335 | xorps $rndkey0,$inout1 |
| 336 | xorps $rndkey0,$inout2 |
| 337 | xorps $rndkey0,$inout3 |
| 338 | $movkey ($key),$rndkey0 |
| 339 | |
| 340 | .L${dir}_loop4: |
| 341 | aes${dir} $rndkey1,$inout0 |
| 342 | aes${dir} $rndkey1,$inout1 |
| 343 | dec $rounds |
| 344 | aes${dir} $rndkey1,$inout2 |
| 345 | aes${dir} $rndkey1,$inout3 |
| 346 | $movkey 16($key),$rndkey1 |
| 347 | aes${dir} $rndkey0,$inout0 |
| 348 | aes${dir} $rndkey0,$inout1 |
| 349 | lea 32($key),$key |
| 350 | aes${dir} $rndkey0,$inout2 |
| 351 | aes${dir} $rndkey0,$inout3 |
| 352 | $movkey ($key),$rndkey0 |
| 353 | jnz .L${dir}_loop4 |
| 354 | |
| 355 | aes${dir} $rndkey1,$inout0 |
| 356 | aes${dir} $rndkey1,$inout1 |
| 357 | aes${dir} $rndkey1,$inout2 |
| 358 | aes${dir} $rndkey1,$inout3 |
| 359 | aes${dir}last $rndkey0,$inout0 |
| 360 | aes${dir}last $rndkey0,$inout1 |
| 361 | aes${dir}last $rndkey0,$inout2 |
| 362 | aes${dir}last $rndkey0,$inout3 |
| 363 | ret |
| 364 | .size _aesni_${dir}rypt4,.-_aesni_${dir}rypt4 |
| 365 | ___ |
| 366 | } |
| 367 | sub aesni_generate6 { |
| 368 | my $dir=shift; |
| 369 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 370 | # preserved. $inout[0-5] is cipher/clear text... |
| 371 | $code.=<<___; |
| 372 | .type _aesni_${dir}rypt6,\@abi-omnipotent |
| 373 | .align 16 |
| 374 | _aesni_${dir}rypt6: |
| 375 | $movkey ($key),$rndkey0 |
| 376 | shr \$1,$rounds |
| 377 | $movkey 16($key),$rndkey1 |
| 378 | lea 32($key),$key |
| 379 | xorps $rndkey0,$inout0 |
| 380 | pxor $rndkey0,$inout1 |
| 381 | aes${dir} $rndkey1,$inout0 |
| 382 | pxor $rndkey0,$inout2 |
| 383 | aes${dir} $rndkey1,$inout1 |
| 384 | pxor $rndkey0,$inout3 |
| 385 | aes${dir} $rndkey1,$inout2 |
| 386 | pxor $rndkey0,$inout4 |
| 387 | aes${dir} $rndkey1,$inout3 |
| 388 | pxor $rndkey0,$inout5 |
| 389 | dec $rounds |
| 390 | aes${dir} $rndkey1,$inout4 |
| 391 | $movkey ($key),$rndkey0 |
| 392 | aes${dir} $rndkey1,$inout5 |
| 393 | jmp .L${dir}_loop6_enter |
| 394 | .align 16 |
| 395 | .L${dir}_loop6: |
| 396 | aes${dir} $rndkey1,$inout0 |
| 397 | aes${dir} $rndkey1,$inout1 |
| 398 | dec $rounds |
| 399 | aes${dir} $rndkey1,$inout2 |
| 400 | aes${dir} $rndkey1,$inout3 |
| 401 | aes${dir} $rndkey1,$inout4 |
| 402 | aes${dir} $rndkey1,$inout5 |
| 403 | .L${dir}_loop6_enter: # happens to be 16-byte aligned |
| 404 | $movkey 16($key),$rndkey1 |
| 405 | aes${dir} $rndkey0,$inout0 |
| 406 | aes${dir} $rndkey0,$inout1 |
| 407 | lea 32($key),$key |
| 408 | aes${dir} $rndkey0,$inout2 |
| 409 | aes${dir} $rndkey0,$inout3 |
| 410 | aes${dir} $rndkey0,$inout4 |
| 411 | aes${dir} $rndkey0,$inout5 |
| 412 | $movkey ($key),$rndkey0 |
| 413 | jnz .L${dir}_loop6 |
| 414 | |
| 415 | aes${dir} $rndkey1,$inout0 |
| 416 | aes${dir} $rndkey1,$inout1 |
| 417 | aes${dir} $rndkey1,$inout2 |
| 418 | aes${dir} $rndkey1,$inout3 |
| 419 | aes${dir} $rndkey1,$inout4 |
| 420 | aes${dir} $rndkey1,$inout5 |
| 421 | aes${dir}last $rndkey0,$inout0 |
| 422 | aes${dir}last $rndkey0,$inout1 |
| 423 | aes${dir}last $rndkey0,$inout2 |
| 424 | aes${dir}last $rndkey0,$inout3 |
| 425 | aes${dir}last $rndkey0,$inout4 |
| 426 | aes${dir}last $rndkey0,$inout5 |
| 427 | ret |
| 428 | .size _aesni_${dir}rypt6,.-_aesni_${dir}rypt6 |
| 429 | ___ |
| 430 | } |
| 431 | sub aesni_generate8 { |
| 432 | my $dir=shift; |
| 433 | # As already mentioned it takes in $key and $rounds, which are *not* |
| 434 | # preserved. $inout[0-7] is cipher/clear text... |
| 435 | $code.=<<___; |
| 436 | .type _aesni_${dir}rypt8,\@abi-omnipotent |
| 437 | .align 16 |
| 438 | _aesni_${dir}rypt8: |
| 439 | $movkey ($key),$rndkey0 |
| 440 | shr \$1,$rounds |
| 441 | $movkey 16($key),$rndkey1 |
| 442 | lea 32($key),$key |
| 443 | xorps $rndkey0,$inout0 |
| 444 | xorps $rndkey0,$inout1 |
| 445 | aes${dir} $rndkey1,$inout0 |
| 446 | pxor $rndkey0,$inout2 |
| 447 | aes${dir} $rndkey1,$inout1 |
| 448 | pxor $rndkey0,$inout3 |
| 449 | aes${dir} $rndkey1,$inout2 |
| 450 | pxor $rndkey0,$inout4 |
| 451 | aes${dir} $rndkey1,$inout3 |
| 452 | pxor $rndkey0,$inout5 |
| 453 | dec $rounds |
| 454 | aes${dir} $rndkey1,$inout4 |
| 455 | pxor $rndkey0,$inout6 |
| 456 | aes${dir} $rndkey1,$inout5 |
| 457 | pxor $rndkey0,$inout7 |
| 458 | $movkey ($key),$rndkey0 |
| 459 | aes${dir} $rndkey1,$inout6 |
| 460 | aes${dir} $rndkey1,$inout7 |
| 461 | $movkey 16($key),$rndkey1 |
| 462 | jmp .L${dir}_loop8_enter |
| 463 | .align 16 |
| 464 | .L${dir}_loop8: |
| 465 | aes${dir} $rndkey1,$inout0 |
| 466 | aes${dir} $rndkey1,$inout1 |
| 467 | dec $rounds |
| 468 | aes${dir} $rndkey1,$inout2 |
| 469 | aes${dir} $rndkey1,$inout3 |
| 470 | aes${dir} $rndkey1,$inout4 |
| 471 | aes${dir} $rndkey1,$inout5 |
| 472 | aes${dir} $rndkey1,$inout6 |
| 473 | aes${dir} $rndkey1,$inout7 |
| 474 | $movkey 16($key),$rndkey1 |
| 475 | .L${dir}_loop8_enter: # happens to be 16-byte aligned |
| 476 | aes${dir} $rndkey0,$inout0 |
| 477 | aes${dir} $rndkey0,$inout1 |
| 478 | lea 32($key),$key |
| 479 | aes${dir} $rndkey0,$inout2 |
| 480 | aes${dir} $rndkey0,$inout3 |
| 481 | aes${dir} $rndkey0,$inout4 |
| 482 | aes${dir} $rndkey0,$inout5 |
| 483 | aes${dir} $rndkey0,$inout6 |
| 484 | aes${dir} $rndkey0,$inout7 |
| 485 | $movkey ($key),$rndkey0 |
| 486 | jnz .L${dir}_loop8 |
| 487 | |
| 488 | aes${dir} $rndkey1,$inout0 |
| 489 | aes${dir} $rndkey1,$inout1 |
| 490 | aes${dir} $rndkey1,$inout2 |
| 491 | aes${dir} $rndkey1,$inout3 |
| 492 | aes${dir} $rndkey1,$inout4 |
| 493 | aes${dir} $rndkey1,$inout5 |
| 494 | aes${dir} $rndkey1,$inout6 |
| 495 | aes${dir} $rndkey1,$inout7 |
| 496 | aes${dir}last $rndkey0,$inout0 |
| 497 | aes${dir}last $rndkey0,$inout1 |
| 498 | aes${dir}last $rndkey0,$inout2 |
| 499 | aes${dir}last $rndkey0,$inout3 |
| 500 | aes${dir}last $rndkey0,$inout4 |
| 501 | aes${dir}last $rndkey0,$inout5 |
| 502 | aes${dir}last $rndkey0,$inout6 |
| 503 | aes${dir}last $rndkey0,$inout7 |
| 504 | ret |
| 505 | .size _aesni_${dir}rypt8,.-_aesni_${dir}rypt8 |
| 506 | ___ |
| 507 | } |
| 508 | &aesni_generate3("enc") if ($PREFIX eq "aesni"); |
| 509 | &aesni_generate3("dec"); |
| 510 | &aesni_generate4("enc") if ($PREFIX eq "aesni"); |
| 511 | &aesni_generate4("dec"); |
| 512 | &aesni_generate6("enc") if ($PREFIX eq "aesni"); |
| 513 | &aesni_generate6("dec"); |
| 514 | &aesni_generate8("enc") if ($PREFIX eq "aesni"); |
| 515 | &aesni_generate8("dec"); |
| 516 | |
| 517 | if ($PREFIX eq "aesni") { |
| 518 | ######################################################################## |
| 519 | # void aesni_ecb_encrypt (const void *in, void *out, |
| 520 | # size_t length, const AES_KEY *key, |
| 521 | # int enc); |
| 522 | $code.=<<___; |
| 523 | .globl aesni_ecb_encrypt |
| 524 | .type aesni_ecb_encrypt,\@function,5 |
| 525 | .align 16 |
| 526 | aesni_ecb_encrypt: |
| 527 | and \$-16,$len |
| 528 | jz .Lecb_ret |
| 529 | |
| 530 | mov 240($key),$rounds # key->rounds |
| 531 | $movkey ($key),$rndkey0 |
| 532 | mov $key,$key_ # backup $key |
| 533 | mov $rounds,$rnds_ # backup $rounds |
| 534 | test %r8d,%r8d # 5th argument |
| 535 | jz .Lecb_decrypt |
| 536 | #--------------------------- ECB ENCRYPT ------------------------------# |
| 537 | cmp \$0x80,$len |
| 538 | jb .Lecb_enc_tail |
| 539 | |
| 540 | movdqu ($inp),$inout0 |
| 541 | movdqu 0x10($inp),$inout1 |
| 542 | movdqu 0x20($inp),$inout2 |
| 543 | movdqu 0x30($inp),$inout3 |
| 544 | movdqu 0x40($inp),$inout4 |
| 545 | movdqu 0x50($inp),$inout5 |
| 546 | movdqu 0x60($inp),$inout6 |
| 547 | movdqu 0x70($inp),$inout7 |
| 548 | lea 0x80($inp),$inp |
| 549 | sub \$0x80,$len |
| 550 | jmp .Lecb_enc_loop8_enter |
| 551 | .align 16 |
| 552 | .Lecb_enc_loop8: |
| 553 | movups $inout0,($out) |
| 554 | mov $key_,$key # restore $key |
| 555 | movdqu ($inp),$inout0 |
| 556 | mov $rnds_,$rounds # restore $rounds |
| 557 | movups $inout1,0x10($out) |
| 558 | movdqu 0x10($inp),$inout1 |
| 559 | movups $inout2,0x20($out) |
| 560 | movdqu 0x20($inp),$inout2 |
| 561 | movups $inout3,0x30($out) |
| 562 | movdqu 0x30($inp),$inout3 |
| 563 | movups $inout4,0x40($out) |
| 564 | movdqu 0x40($inp),$inout4 |
| 565 | movups $inout5,0x50($out) |
| 566 | movdqu 0x50($inp),$inout5 |
| 567 | movups $inout6,0x60($out) |
| 568 | movdqu 0x60($inp),$inout6 |
| 569 | movups $inout7,0x70($out) |
| 570 | lea 0x80($out),$out |
| 571 | movdqu 0x70($inp),$inout7 |
| 572 | lea 0x80($inp),$inp |
| 573 | .Lecb_enc_loop8_enter: |
| 574 | |
| 575 | call _aesni_encrypt8 |
| 576 | |
| 577 | sub \$0x80,$len |
| 578 | jnc .Lecb_enc_loop8 |
| 579 | |
| 580 | movups $inout0,($out) |
| 581 | mov $key_,$key # restore $key |
| 582 | movups $inout1,0x10($out) |
| 583 | mov $rnds_,$rounds # restore $rounds |
| 584 | movups $inout2,0x20($out) |
| 585 | movups $inout3,0x30($out) |
| 586 | movups $inout4,0x40($out) |
| 587 | movups $inout5,0x50($out) |
| 588 | movups $inout6,0x60($out) |
| 589 | movups $inout7,0x70($out) |
| 590 | lea 0x80($out),$out |
| 591 | add \$0x80,$len |
| 592 | jz .Lecb_ret |
| 593 | |
| 594 | .Lecb_enc_tail: |
| 595 | movups ($inp),$inout0 |
| 596 | cmp \$0x20,$len |
| 597 | jb .Lecb_enc_one |
| 598 | movups 0x10($inp),$inout1 |
| 599 | je .Lecb_enc_two |
| 600 | movups 0x20($inp),$inout2 |
| 601 | cmp \$0x40,$len |
| 602 | jb .Lecb_enc_three |
| 603 | movups 0x30($inp),$inout3 |
| 604 | je .Lecb_enc_four |
| 605 | movups 0x40($inp),$inout4 |
| 606 | cmp \$0x60,$len |
| 607 | jb .Lecb_enc_five |
| 608 | movups 0x50($inp),$inout5 |
| 609 | je .Lecb_enc_six |
| 610 | movdqu 0x60($inp),$inout6 |
| 611 | call _aesni_encrypt8 |
| 612 | movups $inout0,($out) |
| 613 | movups $inout1,0x10($out) |
| 614 | movups $inout2,0x20($out) |
| 615 | movups $inout3,0x30($out) |
| 616 | movups $inout4,0x40($out) |
| 617 | movups $inout5,0x50($out) |
| 618 | movups $inout6,0x60($out) |
| 619 | jmp .Lecb_ret |
| 620 | .align 16 |
| 621 | .Lecb_enc_one: |
| 622 | ___ |
| 623 | &aesni_generate1("enc",$key,$rounds); |
| 624 | $code.=<<___; |
| 625 | movups $inout0,($out) |
| 626 | jmp .Lecb_ret |
| 627 | .align 16 |
| 628 | .Lecb_enc_two: |
| 629 | xorps $inout2,$inout2 |
| 630 | call _aesni_encrypt3 |
| 631 | movups $inout0,($out) |
| 632 | movups $inout1,0x10($out) |
| 633 | jmp .Lecb_ret |
| 634 | .align 16 |
| 635 | .Lecb_enc_three: |
| 636 | call _aesni_encrypt3 |
| 637 | movups $inout0,($out) |
| 638 | movups $inout1,0x10($out) |
| 639 | movups $inout2,0x20($out) |
| 640 | jmp .Lecb_ret |
| 641 | .align 16 |
| 642 | .Lecb_enc_four: |
| 643 | call _aesni_encrypt4 |
| 644 | movups $inout0,($out) |
| 645 | movups $inout1,0x10($out) |
| 646 | movups $inout2,0x20($out) |
| 647 | movups $inout3,0x30($out) |
| 648 | jmp .Lecb_ret |
| 649 | .align 16 |
| 650 | .Lecb_enc_five: |
| 651 | xorps $inout5,$inout5 |
| 652 | call _aesni_encrypt6 |
| 653 | movups $inout0,($out) |
| 654 | movups $inout1,0x10($out) |
| 655 | movups $inout2,0x20($out) |
| 656 | movups $inout3,0x30($out) |
| 657 | movups $inout4,0x40($out) |
| 658 | jmp .Lecb_ret |
| 659 | .align 16 |
| 660 | .Lecb_enc_six: |
| 661 | call _aesni_encrypt6 |
| 662 | movups $inout0,($out) |
| 663 | movups $inout1,0x10($out) |
| 664 | movups $inout2,0x20($out) |
| 665 | movups $inout3,0x30($out) |
| 666 | movups $inout4,0x40($out) |
| 667 | movups $inout5,0x50($out) |
| 668 | jmp .Lecb_ret |
| 669 | #--------------------------- ECB DECRYPT ------------------------------# |
| 670 | .align 16 |
| 671 | .Lecb_decrypt: |
| 672 | cmp \$0x80,$len |
| 673 | jb .Lecb_dec_tail |
| 674 | |
| 675 | movdqu ($inp),$inout0 |
| 676 | movdqu 0x10($inp),$inout1 |
| 677 | movdqu 0x20($inp),$inout2 |
| 678 | movdqu 0x30($inp),$inout3 |
| 679 | movdqu 0x40($inp),$inout4 |
| 680 | movdqu 0x50($inp),$inout5 |
| 681 | movdqu 0x60($inp),$inout6 |
| 682 | movdqu 0x70($inp),$inout7 |
| 683 | lea 0x80($inp),$inp |
| 684 | sub \$0x80,$len |
| 685 | jmp .Lecb_dec_loop8_enter |
| 686 | .align 16 |
| 687 | .Lecb_dec_loop8: |
| 688 | movups $inout0,($out) |
| 689 | mov $key_,$key # restore $key |
| 690 | movdqu ($inp),$inout0 |
| 691 | mov $rnds_,$rounds # restore $rounds |
| 692 | movups $inout1,0x10($out) |
| 693 | movdqu 0x10($inp),$inout1 |
| 694 | movups $inout2,0x20($out) |
| 695 | movdqu 0x20($inp),$inout2 |
| 696 | movups $inout3,0x30($out) |
| 697 | movdqu 0x30($inp),$inout3 |
| 698 | movups $inout4,0x40($out) |
| 699 | movdqu 0x40($inp),$inout4 |
| 700 | movups $inout5,0x50($out) |
| 701 | movdqu 0x50($inp),$inout5 |
| 702 | movups $inout6,0x60($out) |
| 703 | movdqu 0x60($inp),$inout6 |
| 704 | movups $inout7,0x70($out) |
| 705 | lea 0x80($out),$out |
| 706 | movdqu 0x70($inp),$inout7 |
| 707 | lea 0x80($inp),$inp |
| 708 | .Lecb_dec_loop8_enter: |
| 709 | |
| 710 | call _aesni_decrypt8 |
| 711 | |
| 712 | $movkey ($key_),$rndkey0 |
| 713 | sub \$0x80,$len |
| 714 | jnc .Lecb_dec_loop8 |
| 715 | |
| 716 | movups $inout0,($out) |
| 717 | mov $key_,$key # restore $key |
| 718 | movups $inout1,0x10($out) |
| 719 | mov $rnds_,$rounds # restore $rounds |
| 720 | movups $inout2,0x20($out) |
| 721 | movups $inout3,0x30($out) |
| 722 | movups $inout4,0x40($out) |
| 723 | movups $inout5,0x50($out) |
| 724 | movups $inout6,0x60($out) |
| 725 | movups $inout7,0x70($out) |
| 726 | lea 0x80($out),$out |
| 727 | add \$0x80,$len |
| 728 | jz .Lecb_ret |
| 729 | |
| 730 | .Lecb_dec_tail: |
| 731 | movups ($inp),$inout0 |
| 732 | cmp \$0x20,$len |
| 733 | jb .Lecb_dec_one |
| 734 | movups 0x10($inp),$inout1 |
| 735 | je .Lecb_dec_two |
| 736 | movups 0x20($inp),$inout2 |
| 737 | cmp \$0x40,$len |
| 738 | jb .Lecb_dec_three |
| 739 | movups 0x30($inp),$inout3 |
| 740 | je .Lecb_dec_four |
| 741 | movups 0x40($inp),$inout4 |
| 742 | cmp \$0x60,$len |
| 743 | jb .Lecb_dec_five |
| 744 | movups 0x50($inp),$inout5 |
| 745 | je .Lecb_dec_six |
| 746 | movups 0x60($inp),$inout6 |
| 747 | $movkey ($key),$rndkey0 |
| 748 | call _aesni_decrypt8 |
| 749 | movups $inout0,($out) |
| 750 | movups $inout1,0x10($out) |
| 751 | movups $inout2,0x20($out) |
| 752 | movups $inout3,0x30($out) |
| 753 | movups $inout4,0x40($out) |
| 754 | movups $inout5,0x50($out) |
| 755 | movups $inout6,0x60($out) |
| 756 | jmp .Lecb_ret |
| 757 | .align 16 |
| 758 | .Lecb_dec_one: |
| 759 | ___ |
| 760 | &aesni_generate1("dec",$key,$rounds); |
| 761 | $code.=<<___; |
| 762 | movups $inout0,($out) |
| 763 | jmp .Lecb_ret |
| 764 | .align 16 |
| 765 | .Lecb_dec_two: |
| 766 | xorps $inout2,$inout2 |
| 767 | call _aesni_decrypt3 |
| 768 | movups $inout0,($out) |
| 769 | movups $inout1,0x10($out) |
| 770 | jmp .Lecb_ret |
| 771 | .align 16 |
| 772 | .Lecb_dec_three: |
| 773 | call _aesni_decrypt3 |
| 774 | movups $inout0,($out) |
| 775 | movups $inout1,0x10($out) |
| 776 | movups $inout2,0x20($out) |
| 777 | jmp .Lecb_ret |
| 778 | .align 16 |
| 779 | .Lecb_dec_four: |
| 780 | call _aesni_decrypt4 |
| 781 | movups $inout0,($out) |
| 782 | movups $inout1,0x10($out) |
| 783 | movups $inout2,0x20($out) |
| 784 | movups $inout3,0x30($out) |
| 785 | jmp .Lecb_ret |
| 786 | .align 16 |
| 787 | .Lecb_dec_five: |
| 788 | xorps $inout5,$inout5 |
| 789 | call _aesni_decrypt6 |
| 790 | movups $inout0,($out) |
| 791 | movups $inout1,0x10($out) |
| 792 | movups $inout2,0x20($out) |
| 793 | movups $inout3,0x30($out) |
| 794 | movups $inout4,0x40($out) |
| 795 | jmp .Lecb_ret |
| 796 | .align 16 |
| 797 | .Lecb_dec_six: |
| 798 | call _aesni_decrypt6 |
| 799 | movups $inout0,($out) |
| 800 | movups $inout1,0x10($out) |
| 801 | movups $inout2,0x20($out) |
| 802 | movups $inout3,0x30($out) |
| 803 | movups $inout4,0x40($out) |
| 804 | movups $inout5,0x50($out) |
| 805 | |
| 806 | .Lecb_ret: |
| 807 | ret |
| 808 | .size aesni_ecb_encrypt,.-aesni_ecb_encrypt |
| 809 | ___ |
| 810 | |
| 811 | { |
| 812 | ###################################################################### |
| 813 | # void aesni_ccm64_[en|de]crypt_blocks (const void *in, void *out, |
| 814 | # size_t blocks, const AES_KEY *key, |
| 815 | # const char *ivec,char *cmac); |
| 816 | # |
| 817 | # Handles only complete blocks, operates on 64-bit counter and |
| 818 | # does not update *ivec! Nor does it finalize CMAC value |
| 819 | # (see engine/eng_aesni.c for details) |
| 820 | # |
| 821 | { |
| 822 | my $cmac="%r9"; # 6th argument |
| 823 | |
| 824 | my $increment="%xmm6"; |
| 825 | my $bswap_mask="%xmm7"; |
| 826 | |
| 827 | $code.=<<___; |
| 828 | .globl aesni_ccm64_encrypt_blocks |
| 829 | .type aesni_ccm64_encrypt_blocks,\@function,6 |
| 830 | .align 16 |
| 831 | aesni_ccm64_encrypt_blocks: |
| 832 | ___ |
| 833 | $code.=<<___ if ($win64); |
| 834 | lea -0x58(%rsp),%rsp |
| 835 | movaps %xmm6,(%rsp) |
| 836 | movaps %xmm7,0x10(%rsp) |
| 837 | movaps %xmm8,0x20(%rsp) |
| 838 | movaps %xmm9,0x30(%rsp) |
| 839 | .Lccm64_enc_body: |
| 840 | ___ |
| 841 | $code.=<<___; |
| 842 | mov 240($key),$rounds # key->rounds |
| 843 | movdqu ($ivp),$iv |
| 844 | movdqa .Lincrement64(%rip),$increment |
| 845 | movdqa .Lbswap_mask(%rip),$bswap_mask |
| 846 | |
| 847 | shr \$1,$rounds |
| 848 | lea 0($key),$key_ |
| 849 | movdqu ($cmac),$inout1 |
| 850 | movdqa $iv,$inout0 |
| 851 | mov $rounds,$rnds_ |
| 852 | pshufb $bswap_mask,$iv |
| 853 | jmp .Lccm64_enc_outer |
| 854 | .align 16 |
| 855 | .Lccm64_enc_outer: |
| 856 | $movkey ($key_),$rndkey0 |
| 857 | mov $rnds_,$rounds |
| 858 | movups ($inp),$in0 # load inp |
| 859 | |
| 860 | xorps $rndkey0,$inout0 # counter |
| 861 | $movkey 16($key_),$rndkey1 |
| 862 | xorps $in0,$rndkey0 |
| 863 | lea 32($key_),$key |
| 864 | xorps $rndkey0,$inout1 # cmac^=inp |
| 865 | $movkey ($key),$rndkey0 |
| 866 | |
| 867 | .Lccm64_enc2_loop: |
| 868 | aesenc $rndkey1,$inout0 |
| 869 | dec $rounds |
| 870 | aesenc $rndkey1,$inout1 |
| 871 | $movkey 16($key),$rndkey1 |
| 872 | aesenc $rndkey0,$inout0 |
| 873 | lea 32($key),$key |
| 874 | aesenc $rndkey0,$inout1 |
| 875 | $movkey 0($key),$rndkey0 |
| 876 | jnz .Lccm64_enc2_loop |
| 877 | aesenc $rndkey1,$inout0 |
| 878 | aesenc $rndkey1,$inout1 |
| 879 | paddq $increment,$iv |
| 880 | aesenclast $rndkey0,$inout0 |
| 881 | aesenclast $rndkey0,$inout1 |
| 882 | |
| 883 | dec $len |
| 884 | lea 16($inp),$inp |
| 885 | xorps $inout0,$in0 # inp ^= E(iv) |
| 886 | movdqa $iv,$inout0 |
| 887 | movups $in0,($out) # save output |
| 888 | lea 16($out),$out |
| 889 | pshufb $bswap_mask,$inout0 |
| 890 | jnz .Lccm64_enc_outer |
| 891 | |
| 892 | movups $inout1,($cmac) |
| 893 | ___ |
| 894 | $code.=<<___ if ($win64); |
| 895 | movaps (%rsp),%xmm6 |
| 896 | movaps 0x10(%rsp),%xmm7 |
| 897 | movaps 0x20(%rsp),%xmm8 |
| 898 | movaps 0x30(%rsp),%xmm9 |
| 899 | lea 0x58(%rsp),%rsp |
| 900 | .Lccm64_enc_ret: |
| 901 | ___ |
| 902 | $code.=<<___; |
| 903 | ret |
| 904 | .size aesni_ccm64_encrypt_blocks,.-aesni_ccm64_encrypt_blocks |
| 905 | ___ |
| 906 | ###################################################################### |
| 907 | $code.=<<___; |
| 908 | .globl aesni_ccm64_decrypt_blocks |
| 909 | .type aesni_ccm64_decrypt_blocks,\@function,6 |
| 910 | .align 16 |
| 911 | aesni_ccm64_decrypt_blocks: |
| 912 | ___ |
| 913 | $code.=<<___ if ($win64); |
| 914 | lea -0x58(%rsp),%rsp |
| 915 | movaps %xmm6,(%rsp) |
| 916 | movaps %xmm7,0x10(%rsp) |
| 917 | movaps %xmm8,0x20(%rsp) |
| 918 | movaps %xmm9,0x30(%rsp) |
| 919 | .Lccm64_dec_body: |
| 920 | ___ |
| 921 | $code.=<<___; |
| 922 | mov 240($key),$rounds # key->rounds |
| 923 | movups ($ivp),$iv |
| 924 | movdqu ($cmac),$inout1 |
| 925 | movdqa .Lincrement64(%rip),$increment |
| 926 | movdqa .Lbswap_mask(%rip),$bswap_mask |
| 927 | |
| 928 | movaps $iv,$inout0 |
| 929 | mov $rounds,$rnds_ |
| 930 | mov $key,$key_ |
| 931 | pshufb $bswap_mask,$iv |
| 932 | ___ |
| 933 | &aesni_generate1("enc",$key,$rounds); |
| 934 | $code.=<<___; |
| 935 | movups ($inp),$in0 # load inp |
| 936 | paddq $increment,$iv |
| 937 | lea 16($inp),$inp |
| 938 | jmp .Lccm64_dec_outer |
| 939 | .align 16 |
| 940 | .Lccm64_dec_outer: |
| 941 | xorps $inout0,$in0 # inp ^= E(iv) |
| 942 | movdqa $iv,$inout0 |
| 943 | mov $rnds_,$rounds |
| 944 | movups $in0,($out) # save output |
| 945 | lea 16($out),$out |
| 946 | pshufb $bswap_mask,$inout0 |
| 947 | |
| 948 | sub \$1,$len |
| 949 | jz .Lccm64_dec_break |
| 950 | |
| 951 | $movkey ($key_),$rndkey0 |
| 952 | shr \$1,$rounds |
| 953 | $movkey 16($key_),$rndkey1 |
| 954 | xorps $rndkey0,$in0 |
| 955 | lea 32($key_),$key |
| 956 | xorps $rndkey0,$inout0 |
| 957 | xorps $in0,$inout1 # cmac^=out |
| 958 | $movkey ($key),$rndkey0 |
| 959 | |
| 960 | .Lccm64_dec2_loop: |
| 961 | aesenc $rndkey1,$inout0 |
| 962 | dec $rounds |
| 963 | aesenc $rndkey1,$inout1 |
| 964 | $movkey 16($key),$rndkey1 |
| 965 | aesenc $rndkey0,$inout0 |
| 966 | lea 32($key),$key |
| 967 | aesenc $rndkey0,$inout1 |
| 968 | $movkey 0($key),$rndkey0 |
| 969 | jnz .Lccm64_dec2_loop |
| 970 | movups ($inp),$in0 # load inp |
| 971 | paddq $increment,$iv |
| 972 | aesenc $rndkey1,$inout0 |
| 973 | aesenc $rndkey1,$inout1 |
| 974 | lea 16($inp),$inp |
| 975 | aesenclast $rndkey0,$inout0 |
| 976 | aesenclast $rndkey0,$inout1 |
| 977 | jmp .Lccm64_dec_outer |
| 978 | |
| 979 | .align 16 |
| 980 | .Lccm64_dec_break: |
| 981 | #xorps $in0,$inout1 # cmac^=out |
| 982 | ___ |
| 983 | &aesni_generate1("enc",$key_,$rounds,$inout1,$in0); |
| 984 | $code.=<<___; |
| 985 | movups $inout1,($cmac) |
| 986 | ___ |
| 987 | $code.=<<___ if ($win64); |
| 988 | movaps (%rsp),%xmm6 |
| 989 | movaps 0x10(%rsp),%xmm7 |
| 990 | movaps 0x20(%rsp),%xmm8 |
| 991 | movaps 0x30(%rsp),%xmm9 |
| 992 | lea 0x58(%rsp),%rsp |
| 993 | .Lccm64_dec_ret: |
| 994 | ___ |
| 995 | $code.=<<___; |
| 996 | ret |
| 997 | .size aesni_ccm64_decrypt_blocks,.-aesni_ccm64_decrypt_blocks |
| 998 | ___ |
| 999 | } |
| 1000 | ###################################################################### |
| 1001 | # void aesni_ctr32_encrypt_blocks (const void *in, void *out, |
| 1002 | # size_t blocks, const AES_KEY *key, |
| 1003 | # const char *ivec); |
| 1004 | # |
| 1005 | # Handles only complete blocks, operates on 32-bit counter and |
| 1006 | # does not update *ivec! (see engine/eng_aesni.c for details) |
| 1007 | # |
| 1008 | { |
| 1009 | my $reserved = $win64?0:-0x28; |
| 1010 | my ($in0,$in1,$in2,$in3)=map("%xmm$_",(8..11)); |
| 1011 | my ($iv0,$iv1,$ivec)=("%xmm12","%xmm13","%xmm14"); |
| 1012 | my $bswap_mask="%xmm15"; |
| 1013 | |
| 1014 | $code.=<<___; |
| 1015 | .globl aesni_ctr32_encrypt_blocks |
| 1016 | .type aesni_ctr32_encrypt_blocks,\@function,5 |
| 1017 | .align 16 |
| 1018 | aesni_ctr32_encrypt_blocks: |
| 1019 | ___ |
| 1020 | $code.=<<___ if ($win64); |
| 1021 | lea -0xc8(%rsp),%rsp |
| 1022 | movaps %xmm6,0x20(%rsp) |
| 1023 | movaps %xmm7,0x30(%rsp) |
| 1024 | movaps %xmm8,0x40(%rsp) |
| 1025 | movaps %xmm9,0x50(%rsp) |
| 1026 | movaps %xmm10,0x60(%rsp) |
| 1027 | movaps %xmm11,0x70(%rsp) |
| 1028 | movaps %xmm12,0x80(%rsp) |
| 1029 | movaps %xmm13,0x90(%rsp) |
| 1030 | movaps %xmm14,0xa0(%rsp) |
| 1031 | movaps %xmm15,0xb0(%rsp) |
| 1032 | .Lctr32_body: |
| 1033 | ___ |
| 1034 | $code.=<<___; |
| 1035 | cmp \$1,$len |
| 1036 | je .Lctr32_one_shortcut |
| 1037 | |
| 1038 | movdqu ($ivp),$ivec |
| 1039 | movdqa .Lbswap_mask(%rip),$bswap_mask |
| 1040 | xor $rounds,$rounds |
| 1041 | pextrd \$3,$ivec,$rnds_ # pull 32-bit counter |
| 1042 | pinsrd \$3,$rounds,$ivec # wipe 32-bit counter |
| 1043 | |
| 1044 | mov 240($key),$rounds # key->rounds |
| 1045 | bswap $rnds_ |
| 1046 | pxor $iv0,$iv0 # vector of 3 32-bit counters |
| 1047 | pxor $iv1,$iv1 # vector of 3 32-bit counters |
| 1048 | pinsrd \$0,$rnds_,$iv0 |
| 1049 | lea 3($rnds_),$key_ |
| 1050 | pinsrd \$0,$key_,$iv1 |
| 1051 | inc $rnds_ |
| 1052 | pinsrd \$1,$rnds_,$iv0 |
| 1053 | inc $key_ |
| 1054 | pinsrd \$1,$key_,$iv1 |
| 1055 | inc $rnds_ |
| 1056 | pinsrd \$2,$rnds_,$iv0 |
| 1057 | inc $key_ |
| 1058 | pinsrd \$2,$key_,$iv1 |
| 1059 | movdqa $iv0,$reserved(%rsp) |
| 1060 | pshufb $bswap_mask,$iv0 |
| 1061 | movdqa $iv1,`$reserved+0x10`(%rsp) |
| 1062 | pshufb $bswap_mask,$iv1 |
| 1063 | |
| 1064 | pshufd \$`3<<6`,$iv0,$inout0 # place counter to upper dword |
| 1065 | pshufd \$`2<<6`,$iv0,$inout1 |
| 1066 | pshufd \$`1<<6`,$iv0,$inout2 |
| 1067 | cmp \$6,$len |
| 1068 | jb .Lctr32_tail |
| 1069 | shr \$1,$rounds |
| 1070 | mov $key,$key_ # backup $key |
| 1071 | mov $rounds,$rnds_ # backup $rounds |
| 1072 | sub \$6,$len |
| 1073 | jmp .Lctr32_loop6 |
| 1074 | |
| 1075 | .align 16 |
| 1076 | .Lctr32_loop6: |
| 1077 | pshufd \$`3<<6`,$iv1,$inout3 |
| 1078 | por $ivec,$inout0 # merge counter-less ivec |
| 1079 | $movkey ($key_),$rndkey0 |
| 1080 | pshufd \$`2<<6`,$iv1,$inout4 |
| 1081 | por $ivec,$inout1 |
| 1082 | $movkey 16($key_),$rndkey1 |
| 1083 | pshufd \$`1<<6`,$iv1,$inout5 |
| 1084 | por $ivec,$inout2 |
| 1085 | por $ivec,$inout3 |
| 1086 | xorps $rndkey0,$inout0 |
| 1087 | por $ivec,$inout4 |
| 1088 | por $ivec,$inout5 |
| 1089 | |
| 1090 | # inline _aesni_encrypt6 and interleave last rounds |
| 1091 | # with own code... |
| 1092 | |
| 1093 | pxor $rndkey0,$inout1 |
| 1094 | aesenc $rndkey1,$inout0 |
| 1095 | lea 32($key_),$key |
| 1096 | pxor $rndkey0,$inout2 |
| 1097 | aesenc $rndkey1,$inout1 |
| 1098 | movdqa .Lincrement32(%rip),$iv1 |
| 1099 | pxor $rndkey0,$inout3 |
| 1100 | aesenc $rndkey1,$inout2 |
| 1101 | movdqa $reserved(%rsp),$iv0 |
| 1102 | pxor $rndkey0,$inout4 |
| 1103 | aesenc $rndkey1,$inout3 |
| 1104 | pxor $rndkey0,$inout5 |
| 1105 | $movkey ($key),$rndkey0 |
| 1106 | dec $rounds |
| 1107 | aesenc $rndkey1,$inout4 |
| 1108 | aesenc $rndkey1,$inout5 |
| 1109 | jmp .Lctr32_enc_loop6_enter |
| 1110 | .align 16 |
| 1111 | .Lctr32_enc_loop6: |
| 1112 | aesenc $rndkey1,$inout0 |
| 1113 | aesenc $rndkey1,$inout1 |
| 1114 | dec $rounds |
| 1115 | aesenc $rndkey1,$inout2 |
| 1116 | aesenc $rndkey1,$inout3 |
| 1117 | aesenc $rndkey1,$inout4 |
| 1118 | aesenc $rndkey1,$inout5 |
| 1119 | .Lctr32_enc_loop6_enter: |
| 1120 | $movkey 16($key),$rndkey1 |
| 1121 | aesenc $rndkey0,$inout0 |
| 1122 | aesenc $rndkey0,$inout1 |
| 1123 | lea 32($key),$key |
| 1124 | aesenc $rndkey0,$inout2 |
| 1125 | aesenc $rndkey0,$inout3 |
| 1126 | aesenc $rndkey0,$inout4 |
| 1127 | aesenc $rndkey0,$inout5 |
| 1128 | $movkey ($key),$rndkey0 |
| 1129 | jnz .Lctr32_enc_loop6 |
| 1130 | |
| 1131 | aesenc $rndkey1,$inout0 |
| 1132 | paddd $iv1,$iv0 # increment counter vector |
| 1133 | aesenc $rndkey1,$inout1 |
| 1134 | paddd `$reserved+0x10`(%rsp),$iv1 |
| 1135 | aesenc $rndkey1,$inout2 |
| 1136 | movdqa $iv0,$reserved(%rsp) # save counter vector |
| 1137 | aesenc $rndkey1,$inout3 |
| 1138 | movdqa $iv1,`$reserved+0x10`(%rsp) |
| 1139 | aesenc $rndkey1,$inout4 |
| 1140 | pshufb $bswap_mask,$iv0 # byte swap |
| 1141 | aesenc $rndkey1,$inout5 |
| 1142 | pshufb $bswap_mask,$iv1 |
| 1143 | |
| 1144 | aesenclast $rndkey0,$inout0 |
| 1145 | movups ($inp),$in0 # load input |
| 1146 | aesenclast $rndkey0,$inout1 |
| 1147 | movups 0x10($inp),$in1 |
| 1148 | aesenclast $rndkey0,$inout2 |
| 1149 | movups 0x20($inp),$in2 |
| 1150 | aesenclast $rndkey0,$inout3 |
| 1151 | movups 0x30($inp),$in3 |
| 1152 | aesenclast $rndkey0,$inout4 |
| 1153 | movups 0x40($inp),$rndkey1 |
| 1154 | aesenclast $rndkey0,$inout5 |
| 1155 | movups 0x50($inp),$rndkey0 |
| 1156 | lea 0x60($inp),$inp |
| 1157 | |
| 1158 | xorps $inout0,$in0 # xor |
| 1159 | pshufd \$`3<<6`,$iv0,$inout0 |
| 1160 | xorps $inout1,$in1 |
| 1161 | pshufd \$`2<<6`,$iv0,$inout1 |
| 1162 | movups $in0,($out) # store output |
| 1163 | xorps $inout2,$in2 |
| 1164 | pshufd \$`1<<6`,$iv0,$inout2 |
| 1165 | movups $in1,0x10($out) |
| 1166 | xorps $inout3,$in3 |
| 1167 | movups $in2,0x20($out) |
| 1168 | xorps $inout4,$rndkey1 |
| 1169 | movups $in3,0x30($out) |
| 1170 | xorps $inout5,$rndkey0 |
| 1171 | movups $rndkey1,0x40($out) |
| 1172 | movups $rndkey0,0x50($out) |
| 1173 | lea 0x60($out),$out |
| 1174 | mov $rnds_,$rounds |
| 1175 | sub \$6,$len |
| 1176 | jnc .Lctr32_loop6 |
| 1177 | |
| 1178 | add \$6,$len |
| 1179 | jz .Lctr32_done |
| 1180 | mov $key_,$key # restore $key |
| 1181 | lea 1($rounds,$rounds),$rounds # restore original value |
| 1182 | |
| 1183 | .Lctr32_tail: |
| 1184 | por $ivec,$inout0 |
| 1185 | movups ($inp),$in0 |
| 1186 | cmp \$2,$len |
| 1187 | jb .Lctr32_one |
| 1188 | |
| 1189 | por $ivec,$inout1 |
| 1190 | movups 0x10($inp),$in1 |
| 1191 | je .Lctr32_two |
| 1192 | |
| 1193 | pshufd \$`3<<6`,$iv1,$inout3 |
| 1194 | por $ivec,$inout2 |
| 1195 | movups 0x20($inp),$in2 |
| 1196 | cmp \$4,$len |
| 1197 | jb .Lctr32_three |
| 1198 | |
| 1199 | pshufd \$`2<<6`,$iv1,$inout4 |
| 1200 | por $ivec,$inout3 |
| 1201 | movups 0x30($inp),$in3 |
| 1202 | je .Lctr32_four |
| 1203 | |
| 1204 | por $ivec,$inout4 |
| 1205 | xorps $inout5,$inout5 |
| 1206 | |
| 1207 | call _aesni_encrypt6 |
| 1208 | |
| 1209 | movups 0x40($inp),$rndkey1 |
| 1210 | xorps $inout0,$in0 |
| 1211 | xorps $inout1,$in1 |
| 1212 | movups $in0,($out) |
| 1213 | xorps $inout2,$in2 |
| 1214 | movups $in1,0x10($out) |
| 1215 | xorps $inout3,$in3 |
| 1216 | movups $in2,0x20($out) |
| 1217 | xorps $inout4,$rndkey1 |
| 1218 | movups $in3,0x30($out) |
| 1219 | movups $rndkey1,0x40($out) |
| 1220 | jmp .Lctr32_done |
| 1221 | |
| 1222 | .align 16 |
| 1223 | .Lctr32_one_shortcut: |
| 1224 | movups ($ivp),$inout0 |
| 1225 | movups ($inp),$in0 |
| 1226 | mov 240($key),$rounds # key->rounds |
| 1227 | .Lctr32_one: |
| 1228 | ___ |
| 1229 | &aesni_generate1("enc",$key,$rounds); |
| 1230 | $code.=<<___; |
| 1231 | xorps $inout0,$in0 |
| 1232 | movups $in0,($out) |
| 1233 | jmp .Lctr32_done |
| 1234 | |
| 1235 | .align 16 |
| 1236 | .Lctr32_two: |
| 1237 | xorps $inout2,$inout2 |
| 1238 | call _aesni_encrypt3 |
| 1239 | xorps $inout0,$in0 |
| 1240 | xorps $inout1,$in1 |
| 1241 | movups $in0,($out) |
| 1242 | movups $in1,0x10($out) |
| 1243 | jmp .Lctr32_done |
| 1244 | |
| 1245 | .align 16 |
| 1246 | .Lctr32_three: |
| 1247 | call _aesni_encrypt3 |
| 1248 | xorps $inout0,$in0 |
| 1249 | xorps $inout1,$in1 |
| 1250 | movups $in0,($out) |
| 1251 | xorps $inout2,$in2 |
| 1252 | movups $in1,0x10($out) |
| 1253 | movups $in2,0x20($out) |
| 1254 | jmp .Lctr32_done |
| 1255 | |
| 1256 | .align 16 |
| 1257 | .Lctr32_four: |
| 1258 | call _aesni_encrypt4 |
| 1259 | xorps $inout0,$in0 |
| 1260 | xorps $inout1,$in1 |
| 1261 | movups $in0,($out) |
| 1262 | xorps $inout2,$in2 |
| 1263 | movups $in1,0x10($out) |
| 1264 | xorps $inout3,$in3 |
| 1265 | movups $in2,0x20($out) |
| 1266 | movups $in3,0x30($out) |
| 1267 | |
| 1268 | .Lctr32_done: |
| 1269 | ___ |
| 1270 | $code.=<<___ if ($win64); |
| 1271 | movaps 0x20(%rsp),%xmm6 |
| 1272 | movaps 0x30(%rsp),%xmm7 |
| 1273 | movaps 0x40(%rsp),%xmm8 |
| 1274 | movaps 0x50(%rsp),%xmm9 |
| 1275 | movaps 0x60(%rsp),%xmm10 |
| 1276 | movaps 0x70(%rsp),%xmm11 |
| 1277 | movaps 0x80(%rsp),%xmm12 |
| 1278 | movaps 0x90(%rsp),%xmm13 |
| 1279 | movaps 0xa0(%rsp),%xmm14 |
| 1280 | movaps 0xb0(%rsp),%xmm15 |
| 1281 | lea 0xc8(%rsp),%rsp |
| 1282 | .Lctr32_ret: |
| 1283 | ___ |
| 1284 | $code.=<<___; |
| 1285 | ret |
| 1286 | .size aesni_ctr32_encrypt_blocks,.-aesni_ctr32_encrypt_blocks |
| 1287 | ___ |
| 1288 | } |
| 1289 | |
| 1290 | ###################################################################### |
| 1291 | # void aesni_xts_[en|de]crypt(const char *inp,char *out,size_t len, |
| 1292 | # const AES_KEY *key1, const AES_KEY *key2 |
| 1293 | # const unsigned char iv[16]); |
| 1294 | # |
| 1295 | { |
| 1296 | my @tweak=map("%xmm$_",(10..15)); |
| 1297 | my ($twmask,$twres,$twtmp)=("%xmm8","%xmm9",@tweak[4]); |
| 1298 | my ($key2,$ivp,$len_)=("%r8","%r9","%r9"); |
| 1299 | my $frame_size = 0x68 + ($win64?160:0); |
| 1300 | |
| 1301 | $code.=<<___; |
| 1302 | .globl aesni_xts_encrypt |
| 1303 | .type aesni_xts_encrypt,\@function,6 |
| 1304 | .align 16 |
| 1305 | aesni_xts_encrypt: |
| 1306 | lea -$frame_size(%rsp),%rsp |
| 1307 | ___ |
| 1308 | $code.=<<___ if ($win64); |
| 1309 | movaps %xmm6,0x60(%rsp) |
| 1310 | movaps %xmm7,0x70(%rsp) |
| 1311 | movaps %xmm8,0x80(%rsp) |
| 1312 | movaps %xmm9,0x90(%rsp) |
| 1313 | movaps %xmm10,0xa0(%rsp) |
| 1314 | movaps %xmm11,0xb0(%rsp) |
| 1315 | movaps %xmm12,0xc0(%rsp) |
| 1316 | movaps %xmm13,0xd0(%rsp) |
| 1317 | movaps %xmm14,0xe0(%rsp) |
| 1318 | movaps %xmm15,0xf0(%rsp) |
| 1319 | .Lxts_enc_body: |
| 1320 | ___ |
| 1321 | $code.=<<___; |
| 1322 | movups ($ivp),@tweak[5] # load clear-text tweak |
| 1323 | mov 240(%r8),$rounds # key2->rounds |
| 1324 | mov 240($key),$rnds_ # key1->rounds |
| 1325 | ___ |
| 1326 | # generate the tweak |
| 1327 | &aesni_generate1("enc",$key2,$rounds,@tweak[5]); |
| 1328 | $code.=<<___; |
| 1329 | mov $key,$key_ # backup $key |
| 1330 | mov $rnds_,$rounds # backup $rounds |
| 1331 | mov $len,$len_ # backup $len |
| 1332 | and \$-16,$len |
| 1333 | |
| 1334 | movdqa .Lxts_magic(%rip),$twmask |
| 1335 | pxor $twtmp,$twtmp |
| 1336 | pcmpgtd @tweak[5],$twtmp # broadcast upper bits |
| 1337 | ___ |
| 1338 | for ($i=0;$i<4;$i++) { |
| 1339 | $code.=<<___; |
| 1340 | pshufd \$0x13,$twtmp,$twres |
| 1341 | pxor $twtmp,$twtmp |
| 1342 | movdqa @tweak[5],@tweak[$i] |
| 1343 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1344 | pand $twmask,$twres # isolate carry and residue |
| 1345 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1346 | pxor $twres,@tweak[5] |
| 1347 | ___ |
| 1348 | } |
| 1349 | $code.=<<___; |
| 1350 | sub \$16*6,$len |
| 1351 | jc .Lxts_enc_short |
| 1352 | |
| 1353 | shr \$1,$rounds |
| 1354 | sub \$1,$rounds |
| 1355 | mov $rounds,$rnds_ |
| 1356 | jmp .Lxts_enc_grandloop |
| 1357 | |
| 1358 | .align 16 |
| 1359 | .Lxts_enc_grandloop: |
| 1360 | pshufd \$0x13,$twtmp,$twres |
| 1361 | movdqa @tweak[5],@tweak[4] |
| 1362 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1363 | movdqu `16*0`($inp),$inout0 # load input |
| 1364 | pand $twmask,$twres # isolate carry and residue |
| 1365 | movdqu `16*1`($inp),$inout1 |
| 1366 | pxor $twres,@tweak[5] |
| 1367 | |
| 1368 | movdqu `16*2`($inp),$inout2 |
| 1369 | pxor @tweak[0],$inout0 # input^=tweak |
| 1370 | movdqu `16*3`($inp),$inout3 |
| 1371 | pxor @tweak[1],$inout1 |
| 1372 | movdqu `16*4`($inp),$inout4 |
| 1373 | pxor @tweak[2],$inout2 |
| 1374 | movdqu `16*5`($inp),$inout5 |
| 1375 | lea `16*6`($inp),$inp |
| 1376 | pxor @tweak[3],$inout3 |
| 1377 | $movkey ($key_),$rndkey0 |
| 1378 | pxor @tweak[4],$inout4 |
| 1379 | pxor @tweak[5],$inout5 |
| 1380 | |
| 1381 | # inline _aesni_encrypt6 and interleave first and last rounds |
| 1382 | # with own code... |
| 1383 | $movkey 16($key_),$rndkey1 |
| 1384 | pxor $rndkey0,$inout0 |
| 1385 | pxor $rndkey0,$inout1 |
| 1386 | movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks |
| 1387 | aesenc $rndkey1,$inout0 |
| 1388 | lea 32($key_),$key |
| 1389 | pxor $rndkey0,$inout2 |
| 1390 | movdqa @tweak[1],`16*1`(%rsp) |
| 1391 | aesenc $rndkey1,$inout1 |
| 1392 | pxor $rndkey0,$inout3 |
| 1393 | movdqa @tweak[2],`16*2`(%rsp) |
| 1394 | aesenc $rndkey1,$inout2 |
| 1395 | pxor $rndkey0,$inout4 |
| 1396 | movdqa @tweak[3],`16*3`(%rsp) |
| 1397 | aesenc $rndkey1,$inout3 |
| 1398 | pxor $rndkey0,$inout5 |
| 1399 | $movkey ($key),$rndkey0 |
| 1400 | dec $rounds |
| 1401 | movdqa @tweak[4],`16*4`(%rsp) |
| 1402 | aesenc $rndkey1,$inout4 |
| 1403 | movdqa @tweak[5],`16*5`(%rsp) |
| 1404 | aesenc $rndkey1,$inout5 |
| 1405 | pxor $twtmp,$twtmp |
| 1406 | pcmpgtd @tweak[5],$twtmp |
| 1407 | jmp .Lxts_enc_loop6_enter |
| 1408 | |
| 1409 | .align 16 |
| 1410 | .Lxts_enc_loop6: |
| 1411 | aesenc $rndkey1,$inout0 |
| 1412 | aesenc $rndkey1,$inout1 |
| 1413 | dec $rounds |
| 1414 | aesenc $rndkey1,$inout2 |
| 1415 | aesenc $rndkey1,$inout3 |
| 1416 | aesenc $rndkey1,$inout4 |
| 1417 | aesenc $rndkey1,$inout5 |
| 1418 | .Lxts_enc_loop6_enter: |
| 1419 | $movkey 16($key),$rndkey1 |
| 1420 | aesenc $rndkey0,$inout0 |
| 1421 | aesenc $rndkey0,$inout1 |
| 1422 | lea 32($key),$key |
| 1423 | aesenc $rndkey0,$inout2 |
| 1424 | aesenc $rndkey0,$inout3 |
| 1425 | aesenc $rndkey0,$inout4 |
| 1426 | aesenc $rndkey0,$inout5 |
| 1427 | $movkey ($key),$rndkey0 |
| 1428 | jnz .Lxts_enc_loop6 |
| 1429 | |
| 1430 | pshufd \$0x13,$twtmp,$twres |
| 1431 | pxor $twtmp,$twtmp |
| 1432 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1433 | aesenc $rndkey1,$inout0 |
| 1434 | pand $twmask,$twres # isolate carry and residue |
| 1435 | aesenc $rndkey1,$inout1 |
| 1436 | pcmpgtd @tweak[5],$twtmp # broadcast upper bits |
| 1437 | aesenc $rndkey1,$inout2 |
| 1438 | pxor $twres,@tweak[5] |
| 1439 | aesenc $rndkey1,$inout3 |
| 1440 | aesenc $rndkey1,$inout4 |
| 1441 | aesenc $rndkey1,$inout5 |
| 1442 | $movkey 16($key),$rndkey1 |
| 1443 | |
| 1444 | pshufd \$0x13,$twtmp,$twres |
| 1445 | pxor $twtmp,$twtmp |
| 1446 | movdqa @tweak[5],@tweak[0] |
| 1447 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1448 | aesenc $rndkey0,$inout0 |
| 1449 | pand $twmask,$twres # isolate carry and residue |
| 1450 | aesenc $rndkey0,$inout1 |
| 1451 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1452 | aesenc $rndkey0,$inout2 |
| 1453 | pxor $twres,@tweak[5] |
| 1454 | aesenc $rndkey0,$inout3 |
| 1455 | aesenc $rndkey0,$inout4 |
| 1456 | aesenc $rndkey0,$inout5 |
| 1457 | $movkey 32($key),$rndkey0 |
| 1458 | |
| 1459 | pshufd \$0x13,$twtmp,$twres |
| 1460 | pxor $twtmp,$twtmp |
| 1461 | movdqa @tweak[5],@tweak[1] |
| 1462 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1463 | aesenc $rndkey1,$inout0 |
| 1464 | pand $twmask,$twres # isolate carry and residue |
| 1465 | aesenc $rndkey1,$inout1 |
| 1466 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1467 | aesenc $rndkey1,$inout2 |
| 1468 | pxor $twres,@tweak[5] |
| 1469 | aesenc $rndkey1,$inout3 |
| 1470 | aesenc $rndkey1,$inout4 |
| 1471 | aesenc $rndkey1,$inout5 |
| 1472 | |
| 1473 | pshufd \$0x13,$twtmp,$twres |
| 1474 | pxor $twtmp,$twtmp |
| 1475 | movdqa @tweak[5],@tweak[2] |
| 1476 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1477 | aesenclast $rndkey0,$inout0 |
| 1478 | pand $twmask,$twres # isolate carry and residue |
| 1479 | aesenclast $rndkey0,$inout1 |
| 1480 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1481 | aesenclast $rndkey0,$inout2 |
| 1482 | pxor $twres,@tweak[5] |
| 1483 | aesenclast $rndkey0,$inout3 |
| 1484 | aesenclast $rndkey0,$inout4 |
| 1485 | aesenclast $rndkey0,$inout5 |
| 1486 | |
| 1487 | pshufd \$0x13,$twtmp,$twres |
| 1488 | pxor $twtmp,$twtmp |
| 1489 | movdqa @tweak[5],@tweak[3] |
| 1490 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1491 | xorps `16*0`(%rsp),$inout0 # output^=tweak |
| 1492 | pand $twmask,$twres # isolate carry and residue |
| 1493 | xorps `16*1`(%rsp),$inout1 |
| 1494 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1495 | pxor $twres,@tweak[5] |
| 1496 | |
| 1497 | xorps `16*2`(%rsp),$inout2 |
| 1498 | movups $inout0,`16*0`($out) # write output |
| 1499 | xorps `16*3`(%rsp),$inout3 |
| 1500 | movups $inout1,`16*1`($out) |
| 1501 | xorps `16*4`(%rsp),$inout4 |
| 1502 | movups $inout2,`16*2`($out) |
| 1503 | xorps `16*5`(%rsp),$inout5 |
| 1504 | movups $inout3,`16*3`($out) |
| 1505 | mov $rnds_,$rounds # restore $rounds |
| 1506 | movups $inout4,`16*4`($out) |
| 1507 | movups $inout5,`16*5`($out) |
| 1508 | lea `16*6`($out),$out |
| 1509 | sub \$16*6,$len |
| 1510 | jnc .Lxts_enc_grandloop |
| 1511 | |
| 1512 | lea 3($rounds,$rounds),$rounds # restore original value |
| 1513 | mov $key_,$key # restore $key |
| 1514 | mov $rounds,$rnds_ # backup $rounds |
| 1515 | |
| 1516 | .Lxts_enc_short: |
| 1517 | add \$16*6,$len |
| 1518 | jz .Lxts_enc_done |
| 1519 | |
| 1520 | cmp \$0x20,$len |
| 1521 | jb .Lxts_enc_one |
| 1522 | je .Lxts_enc_two |
| 1523 | |
| 1524 | cmp \$0x40,$len |
| 1525 | jb .Lxts_enc_three |
| 1526 | je .Lxts_enc_four |
| 1527 | |
| 1528 | pshufd \$0x13,$twtmp,$twres |
| 1529 | movdqa @tweak[5],@tweak[4] |
| 1530 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1531 | movdqu ($inp),$inout0 |
| 1532 | pand $twmask,$twres # isolate carry and residue |
| 1533 | movdqu 16*1($inp),$inout1 |
| 1534 | pxor $twres,@tweak[5] |
| 1535 | |
| 1536 | movdqu 16*2($inp),$inout2 |
| 1537 | pxor @tweak[0],$inout0 |
| 1538 | movdqu 16*3($inp),$inout3 |
| 1539 | pxor @tweak[1],$inout1 |
| 1540 | movdqu 16*4($inp),$inout4 |
| 1541 | lea 16*5($inp),$inp |
| 1542 | pxor @tweak[2],$inout2 |
| 1543 | pxor @tweak[3],$inout3 |
| 1544 | pxor @tweak[4],$inout4 |
| 1545 | |
| 1546 | call _aesni_encrypt6 |
| 1547 | |
| 1548 | xorps @tweak[0],$inout0 |
| 1549 | movdqa @tweak[5],@tweak[0] |
| 1550 | xorps @tweak[1],$inout1 |
| 1551 | xorps @tweak[2],$inout2 |
| 1552 | movdqu $inout0,($out) |
| 1553 | xorps @tweak[3],$inout3 |
| 1554 | movdqu $inout1,16*1($out) |
| 1555 | xorps @tweak[4],$inout4 |
| 1556 | movdqu $inout2,16*2($out) |
| 1557 | movdqu $inout3,16*3($out) |
| 1558 | movdqu $inout4,16*4($out) |
| 1559 | lea 16*5($out),$out |
| 1560 | jmp .Lxts_enc_done |
| 1561 | |
| 1562 | .align 16 |
| 1563 | .Lxts_enc_one: |
| 1564 | movups ($inp),$inout0 |
| 1565 | lea 16*1($inp),$inp |
| 1566 | xorps @tweak[0],$inout0 |
| 1567 | ___ |
| 1568 | &aesni_generate1("enc",$key,$rounds); |
| 1569 | $code.=<<___; |
| 1570 | xorps @tweak[0],$inout0 |
| 1571 | movdqa @tweak[1],@tweak[0] |
| 1572 | movups $inout0,($out) |
| 1573 | lea 16*1($out),$out |
| 1574 | jmp .Lxts_enc_done |
| 1575 | |
| 1576 | .align 16 |
| 1577 | .Lxts_enc_two: |
| 1578 | movups ($inp),$inout0 |
| 1579 | movups 16($inp),$inout1 |
| 1580 | lea 32($inp),$inp |
| 1581 | xorps @tweak[0],$inout0 |
| 1582 | xorps @tweak[1],$inout1 |
| 1583 | |
| 1584 | call _aesni_encrypt3 |
| 1585 | |
| 1586 | xorps @tweak[0],$inout0 |
| 1587 | movdqa @tweak[2],@tweak[0] |
| 1588 | xorps @tweak[1],$inout1 |
| 1589 | movups $inout0,($out) |
| 1590 | movups $inout1,16*1($out) |
| 1591 | lea 16*2($out),$out |
| 1592 | jmp .Lxts_enc_done |
| 1593 | |
| 1594 | .align 16 |
| 1595 | .Lxts_enc_three: |
| 1596 | movups ($inp),$inout0 |
| 1597 | movups 16*1($inp),$inout1 |
| 1598 | movups 16*2($inp),$inout2 |
| 1599 | lea 16*3($inp),$inp |
| 1600 | xorps @tweak[0],$inout0 |
| 1601 | xorps @tweak[1],$inout1 |
| 1602 | xorps @tweak[2],$inout2 |
| 1603 | |
| 1604 | call _aesni_encrypt3 |
| 1605 | |
| 1606 | xorps @tweak[0],$inout0 |
| 1607 | movdqa @tweak[3],@tweak[0] |
| 1608 | xorps @tweak[1],$inout1 |
| 1609 | xorps @tweak[2],$inout2 |
| 1610 | movups $inout0,($out) |
| 1611 | movups $inout1,16*1($out) |
| 1612 | movups $inout2,16*2($out) |
| 1613 | lea 16*3($out),$out |
| 1614 | jmp .Lxts_enc_done |
| 1615 | |
| 1616 | .align 16 |
| 1617 | .Lxts_enc_four: |
| 1618 | movups ($inp),$inout0 |
| 1619 | movups 16*1($inp),$inout1 |
| 1620 | movups 16*2($inp),$inout2 |
| 1621 | xorps @tweak[0],$inout0 |
| 1622 | movups 16*3($inp),$inout3 |
| 1623 | lea 16*4($inp),$inp |
| 1624 | xorps @tweak[1],$inout1 |
| 1625 | xorps @tweak[2],$inout2 |
| 1626 | xorps @tweak[3],$inout3 |
| 1627 | |
| 1628 | call _aesni_encrypt4 |
| 1629 | |
| 1630 | xorps @tweak[0],$inout0 |
| 1631 | movdqa @tweak[5],@tweak[0] |
| 1632 | xorps @tweak[1],$inout1 |
| 1633 | xorps @tweak[2],$inout2 |
| 1634 | movups $inout0,($out) |
| 1635 | xorps @tweak[3],$inout3 |
| 1636 | movups $inout1,16*1($out) |
| 1637 | movups $inout2,16*2($out) |
| 1638 | movups $inout3,16*3($out) |
| 1639 | lea 16*4($out),$out |
| 1640 | jmp .Lxts_enc_done |
| 1641 | |
| 1642 | .align 16 |
| 1643 | .Lxts_enc_done: |
| 1644 | and \$15,$len_ |
| 1645 | jz .Lxts_enc_ret |
| 1646 | mov $len_,$len |
| 1647 | |
| 1648 | .Lxts_enc_steal: |
| 1649 | movzb ($inp),%eax # borrow $rounds ... |
| 1650 | movzb -16($out),%ecx # ... and $key |
| 1651 | lea 1($inp),$inp |
| 1652 | mov %al,-16($out) |
| 1653 | mov %cl,0($out) |
| 1654 | lea 1($out),$out |
| 1655 | sub \$1,$len |
| 1656 | jnz .Lxts_enc_steal |
| 1657 | |
| 1658 | sub $len_,$out # rewind $out |
| 1659 | mov $key_,$key # restore $key |
| 1660 | mov $rnds_,$rounds # restore $rounds |
| 1661 | |
| 1662 | movups -16($out),$inout0 |
| 1663 | xorps @tweak[0],$inout0 |
| 1664 | ___ |
| 1665 | &aesni_generate1("enc",$key,$rounds); |
| 1666 | $code.=<<___; |
| 1667 | xorps @tweak[0],$inout0 |
| 1668 | movups $inout0,-16($out) |
| 1669 | |
| 1670 | .Lxts_enc_ret: |
| 1671 | ___ |
| 1672 | $code.=<<___ if ($win64); |
| 1673 | movaps 0x60(%rsp),%xmm6 |
| 1674 | movaps 0x70(%rsp),%xmm7 |
| 1675 | movaps 0x80(%rsp),%xmm8 |
| 1676 | movaps 0x90(%rsp),%xmm9 |
| 1677 | movaps 0xa0(%rsp),%xmm10 |
| 1678 | movaps 0xb0(%rsp),%xmm11 |
| 1679 | movaps 0xc0(%rsp),%xmm12 |
| 1680 | movaps 0xd0(%rsp),%xmm13 |
| 1681 | movaps 0xe0(%rsp),%xmm14 |
| 1682 | movaps 0xf0(%rsp),%xmm15 |
| 1683 | ___ |
| 1684 | $code.=<<___; |
| 1685 | lea $frame_size(%rsp),%rsp |
| 1686 | .Lxts_enc_epilogue: |
| 1687 | ret |
| 1688 | .size aesni_xts_encrypt,.-aesni_xts_encrypt |
| 1689 | ___ |
| 1690 | |
| 1691 | $code.=<<___; |
| 1692 | .globl aesni_xts_decrypt |
| 1693 | .type aesni_xts_decrypt,\@function,6 |
| 1694 | .align 16 |
| 1695 | aesni_xts_decrypt: |
| 1696 | lea -$frame_size(%rsp),%rsp |
| 1697 | ___ |
| 1698 | $code.=<<___ if ($win64); |
| 1699 | movaps %xmm6,0x60(%rsp) |
| 1700 | movaps %xmm7,0x70(%rsp) |
| 1701 | movaps %xmm8,0x80(%rsp) |
| 1702 | movaps %xmm9,0x90(%rsp) |
| 1703 | movaps %xmm10,0xa0(%rsp) |
| 1704 | movaps %xmm11,0xb0(%rsp) |
| 1705 | movaps %xmm12,0xc0(%rsp) |
| 1706 | movaps %xmm13,0xd0(%rsp) |
| 1707 | movaps %xmm14,0xe0(%rsp) |
| 1708 | movaps %xmm15,0xf0(%rsp) |
| 1709 | .Lxts_dec_body: |
| 1710 | ___ |
| 1711 | $code.=<<___; |
| 1712 | movups ($ivp),@tweak[5] # load clear-text tweak |
| 1713 | mov 240($key2),$rounds # key2->rounds |
| 1714 | mov 240($key),$rnds_ # key1->rounds |
| 1715 | ___ |
| 1716 | # generate the tweak |
| 1717 | &aesni_generate1("enc",$key2,$rounds,@tweak[5]); |
| 1718 | $code.=<<___; |
| 1719 | xor %eax,%eax # if ($len%16) len-=16; |
| 1720 | test \$15,$len |
| 1721 | setnz %al |
| 1722 | shl \$4,%rax |
| 1723 | sub %rax,$len |
| 1724 | |
| 1725 | mov $key,$key_ # backup $key |
| 1726 | mov $rnds_,$rounds # backup $rounds |
| 1727 | mov $len,$len_ # backup $len |
| 1728 | and \$-16,$len |
| 1729 | |
| 1730 | movdqa .Lxts_magic(%rip),$twmask |
| 1731 | pxor $twtmp,$twtmp |
| 1732 | pcmpgtd @tweak[5],$twtmp # broadcast upper bits |
| 1733 | ___ |
| 1734 | for ($i=0;$i<4;$i++) { |
| 1735 | $code.=<<___; |
| 1736 | pshufd \$0x13,$twtmp,$twres |
| 1737 | pxor $twtmp,$twtmp |
| 1738 | movdqa @tweak[5],@tweak[$i] |
| 1739 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1740 | pand $twmask,$twres # isolate carry and residue |
| 1741 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1742 | pxor $twres,@tweak[5] |
| 1743 | ___ |
| 1744 | } |
| 1745 | $code.=<<___; |
| 1746 | sub \$16*6,$len |
| 1747 | jc .Lxts_dec_short |
| 1748 | |
| 1749 | shr \$1,$rounds |
| 1750 | sub \$1,$rounds |
| 1751 | mov $rounds,$rnds_ |
| 1752 | jmp .Lxts_dec_grandloop |
| 1753 | |
| 1754 | .align 16 |
| 1755 | .Lxts_dec_grandloop: |
| 1756 | pshufd \$0x13,$twtmp,$twres |
| 1757 | movdqa @tweak[5],@tweak[4] |
| 1758 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1759 | movdqu `16*0`($inp),$inout0 # load input |
| 1760 | pand $twmask,$twres # isolate carry and residue |
| 1761 | movdqu `16*1`($inp),$inout1 |
| 1762 | pxor $twres,@tweak[5] |
| 1763 | |
| 1764 | movdqu `16*2`($inp),$inout2 |
| 1765 | pxor @tweak[0],$inout0 # input^=tweak |
| 1766 | movdqu `16*3`($inp),$inout3 |
| 1767 | pxor @tweak[1],$inout1 |
| 1768 | movdqu `16*4`($inp),$inout4 |
| 1769 | pxor @tweak[2],$inout2 |
| 1770 | movdqu `16*5`($inp),$inout5 |
| 1771 | lea `16*6`($inp),$inp |
| 1772 | pxor @tweak[3],$inout3 |
| 1773 | $movkey ($key_),$rndkey0 |
| 1774 | pxor @tweak[4],$inout4 |
| 1775 | pxor @tweak[5],$inout5 |
| 1776 | |
| 1777 | # inline _aesni_decrypt6 and interleave first and last rounds |
| 1778 | # with own code... |
| 1779 | $movkey 16($key_),$rndkey1 |
| 1780 | pxor $rndkey0,$inout0 |
| 1781 | pxor $rndkey0,$inout1 |
| 1782 | movdqa @tweak[0],`16*0`(%rsp) # put aside tweaks |
| 1783 | aesdec $rndkey1,$inout0 |
| 1784 | lea 32($key_),$key |
| 1785 | pxor $rndkey0,$inout2 |
| 1786 | movdqa @tweak[1],`16*1`(%rsp) |
| 1787 | aesdec $rndkey1,$inout1 |
| 1788 | pxor $rndkey0,$inout3 |
| 1789 | movdqa @tweak[2],`16*2`(%rsp) |
| 1790 | aesdec $rndkey1,$inout2 |
| 1791 | pxor $rndkey0,$inout4 |
| 1792 | movdqa @tweak[3],`16*3`(%rsp) |
| 1793 | aesdec $rndkey1,$inout3 |
| 1794 | pxor $rndkey0,$inout5 |
| 1795 | $movkey ($key),$rndkey0 |
| 1796 | dec $rounds |
| 1797 | movdqa @tweak[4],`16*4`(%rsp) |
| 1798 | aesdec $rndkey1,$inout4 |
| 1799 | movdqa @tweak[5],`16*5`(%rsp) |
| 1800 | aesdec $rndkey1,$inout5 |
| 1801 | pxor $twtmp,$twtmp |
| 1802 | pcmpgtd @tweak[5],$twtmp |
| 1803 | jmp .Lxts_dec_loop6_enter |
| 1804 | |
| 1805 | .align 16 |
| 1806 | .Lxts_dec_loop6: |
| 1807 | aesdec $rndkey1,$inout0 |
| 1808 | aesdec $rndkey1,$inout1 |
| 1809 | dec $rounds |
| 1810 | aesdec $rndkey1,$inout2 |
| 1811 | aesdec $rndkey1,$inout3 |
| 1812 | aesdec $rndkey1,$inout4 |
| 1813 | aesdec $rndkey1,$inout5 |
| 1814 | .Lxts_dec_loop6_enter: |
| 1815 | $movkey 16($key),$rndkey1 |
| 1816 | aesdec $rndkey0,$inout0 |
| 1817 | aesdec $rndkey0,$inout1 |
| 1818 | lea 32($key),$key |
| 1819 | aesdec $rndkey0,$inout2 |
| 1820 | aesdec $rndkey0,$inout3 |
| 1821 | aesdec $rndkey0,$inout4 |
| 1822 | aesdec $rndkey0,$inout5 |
| 1823 | $movkey ($key),$rndkey0 |
| 1824 | jnz .Lxts_dec_loop6 |
| 1825 | |
| 1826 | pshufd \$0x13,$twtmp,$twres |
| 1827 | pxor $twtmp,$twtmp |
| 1828 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1829 | aesdec $rndkey1,$inout0 |
| 1830 | pand $twmask,$twres # isolate carry and residue |
| 1831 | aesdec $rndkey1,$inout1 |
| 1832 | pcmpgtd @tweak[5],$twtmp # broadcast upper bits |
| 1833 | aesdec $rndkey1,$inout2 |
| 1834 | pxor $twres,@tweak[5] |
| 1835 | aesdec $rndkey1,$inout3 |
| 1836 | aesdec $rndkey1,$inout4 |
| 1837 | aesdec $rndkey1,$inout5 |
| 1838 | $movkey 16($key),$rndkey1 |
| 1839 | |
| 1840 | pshufd \$0x13,$twtmp,$twres |
| 1841 | pxor $twtmp,$twtmp |
| 1842 | movdqa @tweak[5],@tweak[0] |
| 1843 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1844 | aesdec $rndkey0,$inout0 |
| 1845 | pand $twmask,$twres # isolate carry and residue |
| 1846 | aesdec $rndkey0,$inout1 |
| 1847 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1848 | aesdec $rndkey0,$inout2 |
| 1849 | pxor $twres,@tweak[5] |
| 1850 | aesdec $rndkey0,$inout3 |
| 1851 | aesdec $rndkey0,$inout4 |
| 1852 | aesdec $rndkey0,$inout5 |
| 1853 | $movkey 32($key),$rndkey0 |
| 1854 | |
| 1855 | pshufd \$0x13,$twtmp,$twres |
| 1856 | pxor $twtmp,$twtmp |
| 1857 | movdqa @tweak[5],@tweak[1] |
| 1858 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1859 | aesdec $rndkey1,$inout0 |
| 1860 | pand $twmask,$twres # isolate carry and residue |
| 1861 | aesdec $rndkey1,$inout1 |
| 1862 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1863 | aesdec $rndkey1,$inout2 |
| 1864 | pxor $twres,@tweak[5] |
| 1865 | aesdec $rndkey1,$inout3 |
| 1866 | aesdec $rndkey1,$inout4 |
| 1867 | aesdec $rndkey1,$inout5 |
| 1868 | |
| 1869 | pshufd \$0x13,$twtmp,$twres |
| 1870 | pxor $twtmp,$twtmp |
| 1871 | movdqa @tweak[5],@tweak[2] |
| 1872 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1873 | aesdeclast $rndkey0,$inout0 |
| 1874 | pand $twmask,$twres # isolate carry and residue |
| 1875 | aesdeclast $rndkey0,$inout1 |
| 1876 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1877 | aesdeclast $rndkey0,$inout2 |
| 1878 | pxor $twres,@tweak[5] |
| 1879 | aesdeclast $rndkey0,$inout3 |
| 1880 | aesdeclast $rndkey0,$inout4 |
| 1881 | aesdeclast $rndkey0,$inout5 |
| 1882 | |
| 1883 | pshufd \$0x13,$twtmp,$twres |
| 1884 | pxor $twtmp,$twtmp |
| 1885 | movdqa @tweak[5],@tweak[3] |
| 1886 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1887 | xorps `16*0`(%rsp),$inout0 # output^=tweak |
| 1888 | pand $twmask,$twres # isolate carry and residue |
| 1889 | xorps `16*1`(%rsp),$inout1 |
| 1890 | pcmpgtd @tweak[5],$twtmp # broadcat upper bits |
| 1891 | pxor $twres,@tweak[5] |
| 1892 | |
| 1893 | xorps `16*2`(%rsp),$inout2 |
| 1894 | movups $inout0,`16*0`($out) # write output |
| 1895 | xorps `16*3`(%rsp),$inout3 |
| 1896 | movups $inout1,`16*1`($out) |
| 1897 | xorps `16*4`(%rsp),$inout4 |
| 1898 | movups $inout2,`16*2`($out) |
| 1899 | xorps `16*5`(%rsp),$inout5 |
| 1900 | movups $inout3,`16*3`($out) |
| 1901 | mov $rnds_,$rounds # restore $rounds |
| 1902 | movups $inout4,`16*4`($out) |
| 1903 | movups $inout5,`16*5`($out) |
| 1904 | lea `16*6`($out),$out |
| 1905 | sub \$16*6,$len |
| 1906 | jnc .Lxts_dec_grandloop |
| 1907 | |
| 1908 | lea 3($rounds,$rounds),$rounds # restore original value |
| 1909 | mov $key_,$key # restore $key |
| 1910 | mov $rounds,$rnds_ # backup $rounds |
| 1911 | |
| 1912 | .Lxts_dec_short: |
| 1913 | add \$16*6,$len |
| 1914 | jz .Lxts_dec_done |
| 1915 | |
| 1916 | cmp \$0x20,$len |
| 1917 | jb .Lxts_dec_one |
| 1918 | je .Lxts_dec_two |
| 1919 | |
| 1920 | cmp \$0x40,$len |
| 1921 | jb .Lxts_dec_three |
| 1922 | je .Lxts_dec_four |
| 1923 | |
| 1924 | pshufd \$0x13,$twtmp,$twres |
| 1925 | movdqa @tweak[5],@tweak[4] |
| 1926 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1927 | movdqu ($inp),$inout0 |
| 1928 | pand $twmask,$twres # isolate carry and residue |
| 1929 | movdqu 16*1($inp),$inout1 |
| 1930 | pxor $twres,@tweak[5] |
| 1931 | |
| 1932 | movdqu 16*2($inp),$inout2 |
| 1933 | pxor @tweak[0],$inout0 |
| 1934 | movdqu 16*3($inp),$inout3 |
| 1935 | pxor @tweak[1],$inout1 |
| 1936 | movdqu 16*4($inp),$inout4 |
| 1937 | lea 16*5($inp),$inp |
| 1938 | pxor @tweak[2],$inout2 |
| 1939 | pxor @tweak[3],$inout3 |
| 1940 | pxor @tweak[4],$inout4 |
| 1941 | |
| 1942 | call _aesni_decrypt6 |
| 1943 | |
| 1944 | xorps @tweak[0],$inout0 |
| 1945 | xorps @tweak[1],$inout1 |
| 1946 | xorps @tweak[2],$inout2 |
| 1947 | movdqu $inout0,($out) |
| 1948 | xorps @tweak[3],$inout3 |
| 1949 | movdqu $inout1,16*1($out) |
| 1950 | xorps @tweak[4],$inout4 |
| 1951 | movdqu $inout2,16*2($out) |
| 1952 | pxor $twtmp,$twtmp |
| 1953 | movdqu $inout3,16*3($out) |
| 1954 | pcmpgtd @tweak[5],$twtmp |
| 1955 | movdqu $inout4,16*4($out) |
| 1956 | lea 16*5($out),$out |
| 1957 | pshufd \$0x13,$twtmp,@tweak[1] # $twres |
| 1958 | and \$15,$len_ |
| 1959 | jz .Lxts_dec_ret |
| 1960 | |
| 1961 | movdqa @tweak[5],@tweak[0] |
| 1962 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 1963 | pand $twmask,@tweak[1] # isolate carry and residue |
| 1964 | pxor @tweak[5],@tweak[1] |
| 1965 | jmp .Lxts_dec_done2 |
| 1966 | |
| 1967 | .align 16 |
| 1968 | .Lxts_dec_one: |
| 1969 | movups ($inp),$inout0 |
| 1970 | lea 16*1($inp),$inp |
| 1971 | xorps @tweak[0],$inout0 |
| 1972 | ___ |
| 1973 | &aesni_generate1("dec",$key,$rounds); |
| 1974 | $code.=<<___; |
| 1975 | xorps @tweak[0],$inout0 |
| 1976 | movdqa @tweak[1],@tweak[0] |
| 1977 | movups $inout0,($out) |
| 1978 | movdqa @tweak[2],@tweak[1] |
| 1979 | lea 16*1($out),$out |
| 1980 | jmp .Lxts_dec_done |
| 1981 | |
| 1982 | .align 16 |
| 1983 | .Lxts_dec_two: |
| 1984 | movups ($inp),$inout0 |
| 1985 | movups 16($inp),$inout1 |
| 1986 | lea 32($inp),$inp |
| 1987 | xorps @tweak[0],$inout0 |
| 1988 | xorps @tweak[1],$inout1 |
| 1989 | |
| 1990 | call _aesni_decrypt3 |
| 1991 | |
| 1992 | xorps @tweak[0],$inout0 |
| 1993 | movdqa @tweak[2],@tweak[0] |
| 1994 | xorps @tweak[1],$inout1 |
| 1995 | movdqa @tweak[3],@tweak[1] |
| 1996 | movups $inout0,($out) |
| 1997 | movups $inout1,16*1($out) |
| 1998 | lea 16*2($out),$out |
| 1999 | jmp .Lxts_dec_done |
| 2000 | |
| 2001 | .align 16 |
| 2002 | .Lxts_dec_three: |
| 2003 | movups ($inp),$inout0 |
| 2004 | movups 16*1($inp),$inout1 |
| 2005 | movups 16*2($inp),$inout2 |
| 2006 | lea 16*3($inp),$inp |
| 2007 | xorps @tweak[0],$inout0 |
| 2008 | xorps @tweak[1],$inout1 |
| 2009 | xorps @tweak[2],$inout2 |
| 2010 | |
| 2011 | call _aesni_decrypt3 |
| 2012 | |
| 2013 | xorps @tweak[0],$inout0 |
| 2014 | movdqa @tweak[3],@tweak[0] |
| 2015 | xorps @tweak[1],$inout1 |
| 2016 | movdqa @tweak[5],@tweak[1] |
| 2017 | xorps @tweak[2],$inout2 |
| 2018 | movups $inout0,($out) |
| 2019 | movups $inout1,16*1($out) |
| 2020 | movups $inout2,16*2($out) |
| 2021 | lea 16*3($out),$out |
| 2022 | jmp .Lxts_dec_done |
| 2023 | |
| 2024 | .align 16 |
| 2025 | .Lxts_dec_four: |
| 2026 | pshufd \$0x13,$twtmp,$twres |
| 2027 | movdqa @tweak[5],@tweak[4] |
| 2028 | paddq @tweak[5],@tweak[5] # psllq 1,$tweak |
| 2029 | movups ($inp),$inout0 |
| 2030 | pand $twmask,$twres # isolate carry and residue |
| 2031 | movups 16*1($inp),$inout1 |
| 2032 | pxor $twres,@tweak[5] |
| 2033 | |
| 2034 | movups 16*2($inp),$inout2 |
| 2035 | xorps @tweak[0],$inout0 |
| 2036 | movups 16*3($inp),$inout3 |
| 2037 | lea 16*4($inp),$inp |
| 2038 | xorps @tweak[1],$inout1 |
| 2039 | xorps @tweak[2],$inout2 |
| 2040 | xorps @tweak[3],$inout3 |
| 2041 | |
| 2042 | call _aesni_decrypt4 |
| 2043 | |
| 2044 | xorps @tweak[0],$inout0 |
| 2045 | movdqa @tweak[4],@tweak[0] |
| 2046 | xorps @tweak[1],$inout1 |
| 2047 | movdqa @tweak[5],@tweak[1] |
| 2048 | xorps @tweak[2],$inout2 |
| 2049 | movups $inout0,($out) |
| 2050 | xorps @tweak[3],$inout3 |
| 2051 | movups $inout1,16*1($out) |
| 2052 | movups $inout2,16*2($out) |
| 2053 | movups $inout3,16*3($out) |
| 2054 | lea 16*4($out),$out |
| 2055 | jmp .Lxts_dec_done |
| 2056 | |
| 2057 | .align 16 |
| 2058 | .Lxts_dec_done: |
| 2059 | and \$15,$len_ |
| 2060 | jz .Lxts_dec_ret |
| 2061 | .Lxts_dec_done2: |
| 2062 | mov $len_,$len |
| 2063 | mov $key_,$key # restore $key |
| 2064 | mov $rnds_,$rounds # restore $rounds |
| 2065 | |
| 2066 | movups ($inp),$inout0 |
| 2067 | xorps @tweak[1],$inout0 |
| 2068 | ___ |
| 2069 | &aesni_generate1("dec",$key,$rounds); |
| 2070 | $code.=<<___; |
| 2071 | xorps @tweak[1],$inout0 |
| 2072 | movups $inout0,($out) |
| 2073 | |
| 2074 | .Lxts_dec_steal: |
| 2075 | movzb 16($inp),%eax # borrow $rounds ... |
| 2076 | movzb ($out),%ecx # ... and $key |
| 2077 | lea 1($inp),$inp |
| 2078 | mov %al,($out) |
| 2079 | mov %cl,16($out) |
| 2080 | lea 1($out),$out |
| 2081 | sub \$1,$len |
| 2082 | jnz .Lxts_dec_steal |
| 2083 | |
| 2084 | sub $len_,$out # rewind $out |
| 2085 | mov $key_,$key # restore $key |
| 2086 | mov $rnds_,$rounds # restore $rounds |
| 2087 | |
| 2088 | movups ($out),$inout0 |
| 2089 | xorps @tweak[0],$inout0 |
| 2090 | ___ |
| 2091 | &aesni_generate1("dec",$key,$rounds); |
| 2092 | $code.=<<___; |
| 2093 | xorps @tweak[0],$inout0 |
| 2094 | movups $inout0,($out) |
| 2095 | |
| 2096 | .Lxts_dec_ret: |
| 2097 | ___ |
| 2098 | $code.=<<___ if ($win64); |
| 2099 | movaps 0x60(%rsp),%xmm6 |
| 2100 | movaps 0x70(%rsp),%xmm7 |
| 2101 | movaps 0x80(%rsp),%xmm8 |
| 2102 | movaps 0x90(%rsp),%xmm9 |
| 2103 | movaps 0xa0(%rsp),%xmm10 |
| 2104 | movaps 0xb0(%rsp),%xmm11 |
| 2105 | movaps 0xc0(%rsp),%xmm12 |
| 2106 | movaps 0xd0(%rsp),%xmm13 |
| 2107 | movaps 0xe0(%rsp),%xmm14 |
| 2108 | movaps 0xf0(%rsp),%xmm15 |
| 2109 | ___ |
| 2110 | $code.=<<___; |
| 2111 | lea $frame_size(%rsp),%rsp |
| 2112 | .Lxts_dec_epilogue: |
| 2113 | ret |
| 2114 | .size aesni_xts_decrypt,.-aesni_xts_decrypt |
| 2115 | ___ |
| 2116 | } }} |
| 2117 | |
| 2118 | ######################################################################## |
| 2119 | # void $PREFIX_cbc_encrypt (const void *inp, void *out, |
| 2120 | # size_t length, const AES_KEY *key, |
| 2121 | # unsigned char *ivp,const int enc); |
| 2122 | { |
| 2123 | my $reserved = $win64?0x40:-0x18; # used in decrypt |
| 2124 | $code.=<<___; |
| 2125 | .globl ${PREFIX}_cbc_encrypt |
| 2126 | .type ${PREFIX}_cbc_encrypt,\@function,6 |
| 2127 | .align 16 |
| 2128 | ${PREFIX}_cbc_encrypt: |
| 2129 | test $len,$len # check length |
| 2130 | jz .Lcbc_ret |
| 2131 | |
| 2132 | mov 240($key),$rnds_ # key->rounds |
| 2133 | mov $key,$key_ # backup $key |
| 2134 | test %r9d,%r9d # 6th argument |
| 2135 | jz .Lcbc_decrypt |
| 2136 | #--------------------------- CBC ENCRYPT ------------------------------# |
| 2137 | movups ($ivp),$inout0 # load iv as initial state |
| 2138 | mov $rnds_,$rounds |
| 2139 | cmp \$16,$len |
| 2140 | jb .Lcbc_enc_tail |
| 2141 | sub \$16,$len |
| 2142 | jmp .Lcbc_enc_loop |
| 2143 | .align 16 |
| 2144 | .Lcbc_enc_loop: |
| 2145 | movups ($inp),$inout1 # load input |
| 2146 | lea 16($inp),$inp |
| 2147 | #xorps $inout1,$inout0 |
| 2148 | ___ |
| 2149 | &aesni_generate1("enc",$key,$rounds,$inout0,$inout1); |
| 2150 | $code.=<<___; |
| 2151 | mov $rnds_,$rounds # restore $rounds |
| 2152 | mov $key_,$key # restore $key |
| 2153 | movups $inout0,0($out) # store output |
| 2154 | lea 16($out),$out |
| 2155 | sub \$16,$len |
| 2156 | jnc .Lcbc_enc_loop |
| 2157 | add \$16,$len |
| 2158 | jnz .Lcbc_enc_tail |
| 2159 | movups $inout0,($ivp) |
| 2160 | jmp .Lcbc_ret |
| 2161 | |
| 2162 | .Lcbc_enc_tail: |
| 2163 | mov $len,%rcx # zaps $key |
| 2164 | xchg $inp,$out # $inp is %rsi and $out is %rdi now |
| 2165 | .long 0x9066A4F3 # rep movsb |
| 2166 | mov \$16,%ecx # zero tail |
| 2167 | sub $len,%rcx |
| 2168 | xor %eax,%eax |
| 2169 | .long 0x9066AAF3 # rep stosb |
| 2170 | lea -16(%rdi),%rdi # rewind $out by 1 block |
| 2171 | mov $rnds_,$rounds # restore $rounds |
| 2172 | mov %rdi,%rsi # $inp and $out are the same |
| 2173 | mov $key_,$key # restore $key |
| 2174 | xor $len,$len # len=16 |
| 2175 | jmp .Lcbc_enc_loop # one more spin |
| 2176 | #--------------------------- CBC DECRYPT ------------------------------# |
| 2177 | .align 16 |
| 2178 | .Lcbc_decrypt: |
| 2179 | ___ |
| 2180 | $code.=<<___ if ($win64); |
| 2181 | lea -0x58(%rsp),%rsp |
| 2182 | movaps %xmm6,(%rsp) |
| 2183 | movaps %xmm7,0x10(%rsp) |
| 2184 | movaps %xmm8,0x20(%rsp) |
| 2185 | movaps %xmm9,0x30(%rsp) |
| 2186 | .Lcbc_decrypt_body: |
| 2187 | ___ |
| 2188 | $code.=<<___; |
| 2189 | movups ($ivp),$iv |
| 2190 | mov $rnds_,$rounds |
| 2191 | cmp \$0x70,$len |
| 2192 | jbe .Lcbc_dec_tail |
| 2193 | shr \$1,$rnds_ |
| 2194 | sub \$0x70,$len |
| 2195 | mov $rnds_,$rounds |
| 2196 | movaps $iv,$reserved(%rsp) |
| 2197 | jmp .Lcbc_dec_loop8_enter |
| 2198 | .align 16 |
| 2199 | .Lcbc_dec_loop8: |
| 2200 | movaps $rndkey0,$reserved(%rsp) # save IV |
| 2201 | movups $inout7,($out) |
| 2202 | lea 0x10($out),$out |
| 2203 | .Lcbc_dec_loop8_enter: |
| 2204 | $movkey ($key),$rndkey0 |
| 2205 | movups ($inp),$inout0 # load input |
| 2206 | movups 0x10($inp),$inout1 |
| 2207 | $movkey 16($key),$rndkey1 |
| 2208 | |
| 2209 | lea 32($key),$key |
| 2210 | movdqu 0x20($inp),$inout2 |
| 2211 | xorps $rndkey0,$inout0 |
| 2212 | movdqu 0x30($inp),$inout3 |
| 2213 | xorps $rndkey0,$inout1 |
| 2214 | movdqu 0x40($inp),$inout4 |
| 2215 | aesdec $rndkey1,$inout0 |
| 2216 | pxor $rndkey0,$inout2 |
| 2217 | movdqu 0x50($inp),$inout5 |
| 2218 | aesdec $rndkey1,$inout1 |
| 2219 | pxor $rndkey0,$inout3 |
| 2220 | movdqu 0x60($inp),$inout6 |
| 2221 | aesdec $rndkey1,$inout2 |
| 2222 | pxor $rndkey0,$inout4 |
| 2223 | movdqu 0x70($inp),$inout7 |
| 2224 | aesdec $rndkey1,$inout3 |
| 2225 | pxor $rndkey0,$inout5 |
| 2226 | dec $rounds |
| 2227 | aesdec $rndkey1,$inout4 |
| 2228 | pxor $rndkey0,$inout6 |
| 2229 | aesdec $rndkey1,$inout5 |
| 2230 | pxor $rndkey0,$inout7 |
| 2231 | $movkey ($key),$rndkey0 |
| 2232 | aesdec $rndkey1,$inout6 |
| 2233 | aesdec $rndkey1,$inout7 |
| 2234 | $movkey 16($key),$rndkey1 |
| 2235 | |
| 2236 | call .Ldec_loop8_enter |
| 2237 | |
| 2238 | movups ($inp),$rndkey1 # re-load input |
| 2239 | movups 0x10($inp),$rndkey0 |
| 2240 | xorps $reserved(%rsp),$inout0 # ^= IV |
| 2241 | xorps $rndkey1,$inout1 |
| 2242 | movups 0x20($inp),$rndkey1 |
| 2243 | xorps $rndkey0,$inout2 |
| 2244 | movups 0x30($inp),$rndkey0 |
| 2245 | xorps $rndkey1,$inout3 |
| 2246 | movups 0x40($inp),$rndkey1 |
| 2247 | xorps $rndkey0,$inout4 |
| 2248 | movups 0x50($inp),$rndkey0 |
| 2249 | xorps $rndkey1,$inout5 |
| 2250 | movups 0x60($inp),$rndkey1 |
| 2251 | xorps $rndkey0,$inout6 |
| 2252 | movups 0x70($inp),$rndkey0 # IV |
| 2253 | xorps $rndkey1,$inout7 |
| 2254 | movups $inout0,($out) |
| 2255 | movups $inout1,0x10($out) |
| 2256 | movups $inout2,0x20($out) |
| 2257 | movups $inout3,0x30($out) |
| 2258 | mov $rnds_,$rounds # restore $rounds |
| 2259 | movups $inout4,0x40($out) |
| 2260 | mov $key_,$key # restore $key |
| 2261 | movups $inout5,0x50($out) |
| 2262 | lea 0x80($inp),$inp |
| 2263 | movups $inout6,0x60($out) |
| 2264 | lea 0x70($out),$out |
| 2265 | sub \$0x80,$len |
| 2266 | ja .Lcbc_dec_loop8 |
| 2267 | |
| 2268 | movaps $inout7,$inout0 |
| 2269 | movaps $rndkey0,$iv |
| 2270 | add \$0x70,$len |
| 2271 | jle .Lcbc_dec_tail_collected |
| 2272 | movups $inout0,($out) |
| 2273 | lea 1($rnds_,$rnds_),$rounds |
| 2274 | lea 0x10($out),$out |
| 2275 | .Lcbc_dec_tail: |
| 2276 | movups ($inp),$inout0 |
| 2277 | movaps $inout0,$in0 |
| 2278 | cmp \$0x10,$len |
| 2279 | jbe .Lcbc_dec_one |
| 2280 | |
| 2281 | movups 0x10($inp),$inout1 |
| 2282 | movaps $inout1,$in1 |
| 2283 | cmp \$0x20,$len |
| 2284 | jbe .Lcbc_dec_two |
| 2285 | |
| 2286 | movups 0x20($inp),$inout2 |
| 2287 | movaps $inout2,$in2 |
| 2288 | cmp \$0x30,$len |
| 2289 | jbe .Lcbc_dec_three |
| 2290 | |
| 2291 | movups 0x30($inp),$inout3 |
| 2292 | cmp \$0x40,$len |
| 2293 | jbe .Lcbc_dec_four |
| 2294 | |
| 2295 | movups 0x40($inp),$inout4 |
| 2296 | cmp \$0x50,$len |
| 2297 | jbe .Lcbc_dec_five |
| 2298 | |
| 2299 | movups 0x50($inp),$inout5 |
| 2300 | cmp \$0x60,$len |
| 2301 | jbe .Lcbc_dec_six |
| 2302 | |
| 2303 | movups 0x60($inp),$inout6 |
| 2304 | movaps $iv,$reserved(%rsp) # save IV |
| 2305 | call _aesni_decrypt8 |
| 2306 | movups ($inp),$rndkey1 |
| 2307 | movups 0x10($inp),$rndkey0 |
| 2308 | xorps $reserved(%rsp),$inout0 # ^= IV |
| 2309 | xorps $rndkey1,$inout1 |
| 2310 | movups 0x20($inp),$rndkey1 |
| 2311 | xorps $rndkey0,$inout2 |
| 2312 | movups 0x30($inp),$rndkey0 |
| 2313 | xorps $rndkey1,$inout3 |
| 2314 | movups 0x40($inp),$rndkey1 |
| 2315 | xorps $rndkey0,$inout4 |
| 2316 | movups 0x50($inp),$rndkey0 |
| 2317 | xorps $rndkey1,$inout5 |
| 2318 | movups 0x60($inp),$iv # IV |
| 2319 | xorps $rndkey0,$inout6 |
| 2320 | movups $inout0,($out) |
| 2321 | movups $inout1,0x10($out) |
| 2322 | movups $inout2,0x20($out) |
| 2323 | movups $inout3,0x30($out) |
| 2324 | movups $inout4,0x40($out) |
| 2325 | movups $inout5,0x50($out) |
| 2326 | lea 0x60($out),$out |
| 2327 | movaps $inout6,$inout0 |
| 2328 | sub \$0x70,$len |
| 2329 | jmp .Lcbc_dec_tail_collected |
| 2330 | .align 16 |
| 2331 | .Lcbc_dec_one: |
| 2332 | ___ |
| 2333 | &aesni_generate1("dec",$key,$rounds); |
| 2334 | $code.=<<___; |
| 2335 | xorps $iv,$inout0 |
| 2336 | movaps $in0,$iv |
| 2337 | sub \$0x10,$len |
| 2338 | jmp .Lcbc_dec_tail_collected |
| 2339 | .align 16 |
| 2340 | .Lcbc_dec_two: |
| 2341 | xorps $inout2,$inout2 |
| 2342 | call _aesni_decrypt3 |
| 2343 | xorps $iv,$inout0 |
| 2344 | xorps $in0,$inout1 |
| 2345 | movups $inout0,($out) |
| 2346 | movaps $in1,$iv |
| 2347 | movaps $inout1,$inout0 |
| 2348 | lea 0x10($out),$out |
| 2349 | sub \$0x20,$len |
| 2350 | jmp .Lcbc_dec_tail_collected |
| 2351 | .align 16 |
| 2352 | .Lcbc_dec_three: |
| 2353 | call _aesni_decrypt3 |
| 2354 | xorps $iv,$inout0 |
| 2355 | xorps $in0,$inout1 |
| 2356 | movups $inout0,($out) |
| 2357 | xorps $in1,$inout2 |
| 2358 | movups $inout1,0x10($out) |
| 2359 | movaps $in2,$iv |
| 2360 | movaps $inout2,$inout0 |
| 2361 | lea 0x20($out),$out |
| 2362 | sub \$0x30,$len |
| 2363 | jmp .Lcbc_dec_tail_collected |
| 2364 | .align 16 |
| 2365 | .Lcbc_dec_four: |
| 2366 | call _aesni_decrypt4 |
| 2367 | xorps $iv,$inout0 |
| 2368 | movups 0x30($inp),$iv |
| 2369 | xorps $in0,$inout1 |
| 2370 | movups $inout0,($out) |
| 2371 | xorps $in1,$inout2 |
| 2372 | movups $inout1,0x10($out) |
| 2373 | xorps $in2,$inout3 |
| 2374 | movups $inout2,0x20($out) |
| 2375 | movaps $inout3,$inout0 |
| 2376 | lea 0x30($out),$out |
| 2377 | sub \$0x40,$len |
| 2378 | jmp .Lcbc_dec_tail_collected |
| 2379 | .align 16 |
| 2380 | .Lcbc_dec_five: |
| 2381 | xorps $inout5,$inout5 |
| 2382 | call _aesni_decrypt6 |
| 2383 | movups 0x10($inp),$rndkey1 |
| 2384 | movups 0x20($inp),$rndkey0 |
| 2385 | xorps $iv,$inout0 |
| 2386 | xorps $in0,$inout1 |
| 2387 | xorps $rndkey1,$inout2 |
| 2388 | movups 0x30($inp),$rndkey1 |
| 2389 | xorps $rndkey0,$inout3 |
| 2390 | movups 0x40($inp),$iv |
| 2391 | xorps $rndkey1,$inout4 |
| 2392 | movups $inout0,($out) |
| 2393 | movups $inout1,0x10($out) |
| 2394 | movups $inout2,0x20($out) |
| 2395 | movups $inout3,0x30($out) |
| 2396 | lea 0x40($out),$out |
| 2397 | movaps $inout4,$inout0 |
| 2398 | sub \$0x50,$len |
| 2399 | jmp .Lcbc_dec_tail_collected |
| 2400 | .align 16 |
| 2401 | .Lcbc_dec_six: |
| 2402 | call _aesni_decrypt6 |
| 2403 | movups 0x10($inp),$rndkey1 |
| 2404 | movups 0x20($inp),$rndkey0 |
| 2405 | xorps $iv,$inout0 |
| 2406 | xorps $in0,$inout1 |
| 2407 | xorps $rndkey1,$inout2 |
| 2408 | movups 0x30($inp),$rndkey1 |
| 2409 | xorps $rndkey0,$inout3 |
| 2410 | movups 0x40($inp),$rndkey0 |
| 2411 | xorps $rndkey1,$inout4 |
| 2412 | movups 0x50($inp),$iv |
| 2413 | xorps $rndkey0,$inout5 |
| 2414 | movups $inout0,($out) |
| 2415 | movups $inout1,0x10($out) |
| 2416 | movups $inout2,0x20($out) |
| 2417 | movups $inout3,0x30($out) |
| 2418 | movups $inout4,0x40($out) |
| 2419 | lea 0x50($out),$out |
| 2420 | movaps $inout5,$inout0 |
| 2421 | sub \$0x60,$len |
| 2422 | jmp .Lcbc_dec_tail_collected |
| 2423 | .align 16 |
| 2424 | .Lcbc_dec_tail_collected: |
| 2425 | and \$15,$len |
| 2426 | movups $iv,($ivp) |
| 2427 | jnz .Lcbc_dec_tail_partial |
| 2428 | movups $inout0,($out) |
| 2429 | jmp .Lcbc_dec_ret |
| 2430 | .align 16 |
| 2431 | .Lcbc_dec_tail_partial: |
| 2432 | movaps $inout0,$reserved(%rsp) |
| 2433 | mov \$16,%rcx |
| 2434 | mov $out,%rdi |
| 2435 | sub $len,%rcx |
| 2436 | lea $reserved(%rsp),%rsi |
| 2437 | .long 0x9066A4F3 # rep movsb |
| 2438 | |
| 2439 | .Lcbc_dec_ret: |
| 2440 | ___ |
| 2441 | $code.=<<___ if ($win64); |
| 2442 | movaps (%rsp),%xmm6 |
| 2443 | movaps 0x10(%rsp),%xmm7 |
| 2444 | movaps 0x20(%rsp),%xmm8 |
| 2445 | movaps 0x30(%rsp),%xmm9 |
| 2446 | lea 0x58(%rsp),%rsp |
| 2447 | ___ |
| 2448 | $code.=<<___; |
| 2449 | .Lcbc_ret: |
| 2450 | ret |
| 2451 | .size ${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt |
| 2452 | ___ |
| 2453 | } |
| 2454 | # int $PREFIX_set_[en|de]crypt_key (const unsigned char *userKey, |
| 2455 | # int bits, AES_KEY *key) |
| 2456 | { my ($inp,$bits,$key) = @_4args; |
| 2457 | $bits =~ s/%r/%e/; |
| 2458 | |
| 2459 | $code.=<<___; |
| 2460 | .globl ${PREFIX}_set_decrypt_key |
| 2461 | .type ${PREFIX}_set_decrypt_key,\@abi-omnipotent |
| 2462 | .align 16 |
| 2463 | ${PREFIX}_set_decrypt_key: |
| 2464 | .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 |
| 2465 | call __aesni_set_encrypt_key |
| 2466 | shl \$4,$bits # rounds-1 after _aesni_set_encrypt_key |
| 2467 | test %eax,%eax |
| 2468 | jnz .Ldec_key_ret |
| 2469 | lea 16($key,$bits),$inp # points at the end of key schedule |
| 2470 | |
| 2471 | $movkey ($key),%xmm0 # just swap |
| 2472 | $movkey ($inp),%xmm1 |
| 2473 | $movkey %xmm0,($inp) |
| 2474 | $movkey %xmm1,($key) |
| 2475 | lea 16($key),$key |
| 2476 | lea -16($inp),$inp |
| 2477 | |
| 2478 | .Ldec_key_inverse: |
| 2479 | $movkey ($key),%xmm0 # swap and inverse |
| 2480 | $movkey ($inp),%xmm1 |
| 2481 | aesimc %xmm0,%xmm0 |
| 2482 | aesimc %xmm1,%xmm1 |
| 2483 | lea 16($key),$key |
| 2484 | lea -16($inp),$inp |
| 2485 | $movkey %xmm0,16($inp) |
| 2486 | $movkey %xmm1,-16($key) |
| 2487 | cmp $key,$inp |
| 2488 | ja .Ldec_key_inverse |
| 2489 | |
| 2490 | $movkey ($key),%xmm0 # inverse middle |
| 2491 | aesimc %xmm0,%xmm0 |
| 2492 | $movkey %xmm0,($inp) |
| 2493 | .Ldec_key_ret: |
| 2494 | add \$8,%rsp |
| 2495 | ret |
| 2496 | .LSEH_end_set_decrypt_key: |
| 2497 | .size ${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key |
| 2498 | ___ |
| 2499 | |
| 2500 | # This is based on submission by |
| 2501 | # |
| 2502 | # Huang Ying <ying.huang@intel.com> |
| 2503 | # Vinodh Gopal <vinodh.gopal@intel.com> |
| 2504 | # Kahraman Akdemir |
| 2505 | # |
| 2506 | # Agressively optimized in respect to aeskeygenassist's critical path |
| 2507 | # and is contained in %xmm0-5 to meet Win64 ABI requirement. |
| 2508 | # |
| 2509 | $code.=<<___; |
| 2510 | .globl ${PREFIX}_set_encrypt_key |
| 2511 | .type ${PREFIX}_set_encrypt_key,\@abi-omnipotent |
| 2512 | .align 16 |
| 2513 | ${PREFIX}_set_encrypt_key: |
| 2514 | __aesni_set_encrypt_key: |
| 2515 | .byte 0x48,0x83,0xEC,0x08 # sub rsp,8 |
| 2516 | mov \$-1,%rax |
| 2517 | test $inp,$inp |
| 2518 | jz .Lenc_key_ret |
| 2519 | test $key,$key |
| 2520 | jz .Lenc_key_ret |
| 2521 | |
| 2522 | movups ($inp),%xmm0 # pull first 128 bits of *userKey |
| 2523 | xorps %xmm4,%xmm4 # low dword of xmm4 is assumed 0 |
| 2524 | lea 16($key),%rax |
| 2525 | cmp \$256,$bits |
| 2526 | je .L14rounds |
| 2527 | cmp \$192,$bits |
| 2528 | je .L12rounds |
| 2529 | cmp \$128,$bits |
| 2530 | jne .Lbad_keybits |
| 2531 | |
| 2532 | .L10rounds: |
| 2533 | mov \$9,$bits # 10 rounds for 128-bit key |
| 2534 | $movkey %xmm0,($key) # round 0 |
| 2535 | aeskeygenassist \$0x1,%xmm0,%xmm1 # round 1 |
| 2536 | call .Lkey_expansion_128_cold |
| 2537 | aeskeygenassist \$0x2,%xmm0,%xmm1 # round 2 |
| 2538 | call .Lkey_expansion_128 |
| 2539 | aeskeygenassist \$0x4,%xmm0,%xmm1 # round 3 |
| 2540 | call .Lkey_expansion_128 |
| 2541 | aeskeygenassist \$0x8,%xmm0,%xmm1 # round 4 |
| 2542 | call .Lkey_expansion_128 |
| 2543 | aeskeygenassist \$0x10,%xmm0,%xmm1 # round 5 |
| 2544 | call .Lkey_expansion_128 |
| 2545 | aeskeygenassist \$0x20,%xmm0,%xmm1 # round 6 |
| 2546 | call .Lkey_expansion_128 |
| 2547 | aeskeygenassist \$0x40,%xmm0,%xmm1 # round 7 |
| 2548 | call .Lkey_expansion_128 |
| 2549 | aeskeygenassist \$0x80,%xmm0,%xmm1 # round 8 |
| 2550 | call .Lkey_expansion_128 |
| 2551 | aeskeygenassist \$0x1b,%xmm0,%xmm1 # round 9 |
| 2552 | call .Lkey_expansion_128 |
| 2553 | aeskeygenassist \$0x36,%xmm0,%xmm1 # round 10 |
| 2554 | call .Lkey_expansion_128 |
| 2555 | $movkey %xmm0,(%rax) |
| 2556 | mov $bits,80(%rax) # 240(%rdx) |
| 2557 | xor %eax,%eax |
| 2558 | jmp .Lenc_key_ret |
| 2559 | |
| 2560 | .align 16 |
| 2561 | .L12rounds: |
| 2562 | movq 16($inp),%xmm2 # remaining 1/3 of *userKey |
| 2563 | mov \$11,$bits # 12 rounds for 192 |
| 2564 | $movkey %xmm0,($key) # round 0 |
| 2565 | aeskeygenassist \$0x1,%xmm2,%xmm1 # round 1,2 |
| 2566 | call .Lkey_expansion_192a_cold |
| 2567 | aeskeygenassist \$0x2,%xmm2,%xmm1 # round 2,3 |
| 2568 | call .Lkey_expansion_192b |
| 2569 | aeskeygenassist \$0x4,%xmm2,%xmm1 # round 4,5 |
| 2570 | call .Lkey_expansion_192a |
| 2571 | aeskeygenassist \$0x8,%xmm2,%xmm1 # round 5,6 |
| 2572 | call .Lkey_expansion_192b |
| 2573 | aeskeygenassist \$0x10,%xmm2,%xmm1 # round 7,8 |
| 2574 | call .Lkey_expansion_192a |
| 2575 | aeskeygenassist \$0x20,%xmm2,%xmm1 # round 8,9 |
| 2576 | call .Lkey_expansion_192b |
| 2577 | aeskeygenassist \$0x40,%xmm2,%xmm1 # round 10,11 |
| 2578 | call .Lkey_expansion_192a |
| 2579 | aeskeygenassist \$0x80,%xmm2,%xmm1 # round 11,12 |
| 2580 | call .Lkey_expansion_192b |
| 2581 | $movkey %xmm0,(%rax) |
| 2582 | mov $bits,48(%rax) # 240(%rdx) |
| 2583 | xor %rax, %rax |
| 2584 | jmp .Lenc_key_ret |
| 2585 | |
| 2586 | .align 16 |
| 2587 | .L14rounds: |
| 2588 | movups 16($inp),%xmm2 # remaning half of *userKey |
| 2589 | mov \$13,$bits # 14 rounds for 256 |
| 2590 | lea 16(%rax),%rax |
| 2591 | $movkey %xmm0,($key) # round 0 |
| 2592 | $movkey %xmm2,16($key) # round 1 |
| 2593 | aeskeygenassist \$0x1,%xmm2,%xmm1 # round 2 |
| 2594 | call .Lkey_expansion_256a_cold |
| 2595 | aeskeygenassist \$0x1,%xmm0,%xmm1 # round 3 |
| 2596 | call .Lkey_expansion_256b |
| 2597 | aeskeygenassist \$0x2,%xmm2,%xmm1 # round 4 |
| 2598 | call .Lkey_expansion_256a |
| 2599 | aeskeygenassist \$0x2,%xmm0,%xmm1 # round 5 |
| 2600 | call .Lkey_expansion_256b |
| 2601 | aeskeygenassist \$0x4,%xmm2,%xmm1 # round 6 |
| 2602 | call .Lkey_expansion_256a |
| 2603 | aeskeygenassist \$0x4,%xmm0,%xmm1 # round 7 |
| 2604 | call .Lkey_expansion_256b |
| 2605 | aeskeygenassist \$0x8,%xmm2,%xmm1 # round 8 |
| 2606 | call .Lkey_expansion_256a |
| 2607 | aeskeygenassist \$0x8,%xmm0,%xmm1 # round 9 |
| 2608 | call .Lkey_expansion_256b |
| 2609 | aeskeygenassist \$0x10,%xmm2,%xmm1 # round 10 |
| 2610 | call .Lkey_expansion_256a |
| 2611 | aeskeygenassist \$0x10,%xmm0,%xmm1 # round 11 |
| 2612 | call .Lkey_expansion_256b |
| 2613 | aeskeygenassist \$0x20,%xmm2,%xmm1 # round 12 |
| 2614 | call .Lkey_expansion_256a |
| 2615 | aeskeygenassist \$0x20,%xmm0,%xmm1 # round 13 |
| 2616 | call .Lkey_expansion_256b |
| 2617 | aeskeygenassist \$0x40,%xmm2,%xmm1 # round 14 |
| 2618 | call .Lkey_expansion_256a |
| 2619 | $movkey %xmm0,(%rax) |
| 2620 | mov $bits,16(%rax) # 240(%rdx) |
| 2621 | xor %rax,%rax |
| 2622 | jmp .Lenc_key_ret |
| 2623 | |
| 2624 | .align 16 |
| 2625 | .Lbad_keybits: |
| 2626 | mov \$-2,%rax |
| 2627 | .Lenc_key_ret: |
| 2628 | add \$8,%rsp |
| 2629 | ret |
| 2630 | .LSEH_end_set_encrypt_key: |
| 2631 | |
| 2632 | .align 16 |
| 2633 | .Lkey_expansion_128: |
| 2634 | $movkey %xmm0,(%rax) |
| 2635 | lea 16(%rax),%rax |
| 2636 | .Lkey_expansion_128_cold: |
| 2637 | shufps \$0b00010000,%xmm0,%xmm4 |
| 2638 | xorps %xmm4, %xmm0 |
| 2639 | shufps \$0b10001100,%xmm0,%xmm4 |
| 2640 | xorps %xmm4, %xmm0 |
| 2641 | shufps \$0b11111111,%xmm1,%xmm1 # critical path |
| 2642 | xorps %xmm1,%xmm0 |
| 2643 | ret |
| 2644 | |
| 2645 | .align 16 |
| 2646 | .Lkey_expansion_192a: |
| 2647 | $movkey %xmm0,(%rax) |
| 2648 | lea 16(%rax),%rax |
| 2649 | .Lkey_expansion_192a_cold: |
| 2650 | movaps %xmm2, %xmm5 |
| 2651 | .Lkey_expansion_192b_warm: |
| 2652 | shufps \$0b00010000,%xmm0,%xmm4 |
| 2653 | movdqa %xmm2,%xmm3 |
| 2654 | xorps %xmm4,%xmm0 |
| 2655 | shufps \$0b10001100,%xmm0,%xmm4 |
| 2656 | pslldq \$4,%xmm3 |
| 2657 | xorps %xmm4,%xmm0 |
| 2658 | pshufd \$0b01010101,%xmm1,%xmm1 # critical path |
| 2659 | pxor %xmm3,%xmm2 |
| 2660 | pxor %xmm1,%xmm0 |
| 2661 | pshufd \$0b11111111,%xmm0,%xmm3 |
| 2662 | pxor %xmm3,%xmm2 |
| 2663 | ret |
| 2664 | |
| 2665 | .align 16 |
| 2666 | .Lkey_expansion_192b: |
| 2667 | movaps %xmm0,%xmm3 |
| 2668 | shufps \$0b01000100,%xmm0,%xmm5 |
| 2669 | $movkey %xmm5,(%rax) |
| 2670 | shufps \$0b01001110,%xmm2,%xmm3 |
| 2671 | $movkey %xmm3,16(%rax) |
| 2672 | lea 32(%rax),%rax |
| 2673 | jmp .Lkey_expansion_192b_warm |
| 2674 | |
| 2675 | .align 16 |
| 2676 | .Lkey_expansion_256a: |
| 2677 | $movkey %xmm2,(%rax) |
| 2678 | lea 16(%rax),%rax |
| 2679 | .Lkey_expansion_256a_cold: |
| 2680 | shufps \$0b00010000,%xmm0,%xmm4 |
| 2681 | xorps %xmm4,%xmm0 |
| 2682 | shufps \$0b10001100,%xmm0,%xmm4 |
| 2683 | xorps %xmm4,%xmm0 |
| 2684 | shufps \$0b11111111,%xmm1,%xmm1 # critical path |
| 2685 | xorps %xmm1,%xmm0 |
| 2686 | ret |
| 2687 | |
| 2688 | .align 16 |
| 2689 | .Lkey_expansion_256b: |
| 2690 | $movkey %xmm0,(%rax) |
| 2691 | lea 16(%rax),%rax |
| 2692 | |
| 2693 | shufps \$0b00010000,%xmm2,%xmm4 |
| 2694 | xorps %xmm4,%xmm2 |
| 2695 | shufps \$0b10001100,%xmm2,%xmm4 |
| 2696 | xorps %xmm4,%xmm2 |
| 2697 | shufps \$0b10101010,%xmm1,%xmm1 # critical path |
| 2698 | xorps %xmm1,%xmm2 |
| 2699 | ret |
| 2700 | .size ${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key |
| 2701 | .size __aesni_set_encrypt_key,.-__aesni_set_encrypt_key |
| 2702 | ___ |
| 2703 | } |
| 2704 | |
| 2705 | $code.=<<___; |
| 2706 | .align 64 |
| 2707 | .Lbswap_mask: |
| 2708 | .byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0 |
| 2709 | .Lincrement32: |
| 2710 | .long 6,6,6,0 |
| 2711 | .Lincrement64: |
| 2712 | .long 1,0,0,0 |
| 2713 | .Lxts_magic: |
| 2714 | .long 0x87,0,1,0 |
| 2715 | |
| 2716 | .asciz "AES for Intel AES-NI, CRYPTOGAMS by <appro\@openssl.org>" |
| 2717 | .align 64 |
| 2718 | ___ |
| 2719 | |
| 2720 | # EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, |
| 2721 | # CONTEXT *context,DISPATCHER_CONTEXT *disp) |
| 2722 | if ($win64) { |
| 2723 | $rec="%rcx"; |
| 2724 | $frame="%rdx"; |
| 2725 | $context="%r8"; |
| 2726 | $disp="%r9"; |
| 2727 | |
| 2728 | $code.=<<___; |
| 2729 | .extern __imp_RtlVirtualUnwind |
| 2730 | ___ |
| 2731 | $code.=<<___ if ($PREFIX eq "aesni"); |
| 2732 | .type ecb_se_handler,\@abi-omnipotent |
| 2733 | .align 16 |
| 2734 | ecb_se_handler: |
| 2735 | push %rsi |
| 2736 | push %rdi |
| 2737 | push %rbx |
| 2738 | push %rbp |
| 2739 | push %r12 |
| 2740 | push %r13 |
| 2741 | push %r14 |
| 2742 | push %r15 |
| 2743 | pushfq |
| 2744 | sub \$64,%rsp |
| 2745 | |
| 2746 | mov 152($context),%rax # pull context->Rsp |
| 2747 | |
| 2748 | jmp .Lcommon_seh_tail |
| 2749 | .size ecb_se_handler,.-ecb_se_handler |
| 2750 | |
| 2751 | .type ccm64_se_handler,\@abi-omnipotent |
| 2752 | .align 16 |
| 2753 | ccm64_se_handler: |
| 2754 | push %rsi |
| 2755 | push %rdi |
| 2756 | push %rbx |
| 2757 | push %rbp |
| 2758 | push %r12 |
| 2759 | push %r13 |
| 2760 | push %r14 |
| 2761 | push %r15 |
| 2762 | pushfq |
| 2763 | sub \$64,%rsp |
| 2764 | |
| 2765 | mov 120($context),%rax # pull context->Rax |
| 2766 | mov 248($context),%rbx # pull context->Rip |
| 2767 | |
| 2768 | mov 8($disp),%rsi # disp->ImageBase |
| 2769 | mov 56($disp),%r11 # disp->HandlerData |
| 2770 | |
| 2771 | mov 0(%r11),%r10d # HandlerData[0] |
| 2772 | lea (%rsi,%r10),%r10 # prologue label |
| 2773 | cmp %r10,%rbx # context->Rip<prologue label |
| 2774 | jb .Lcommon_seh_tail |
| 2775 | |
| 2776 | mov 152($context),%rax # pull context->Rsp |
| 2777 | |
| 2778 | mov 4(%r11),%r10d # HandlerData[1] |
| 2779 | lea (%rsi,%r10),%r10 # epilogue label |
| 2780 | cmp %r10,%rbx # context->Rip>=epilogue label |
| 2781 | jae .Lcommon_seh_tail |
| 2782 | |
| 2783 | lea 0(%rax),%rsi # %xmm save area |
| 2784 | lea 512($context),%rdi # &context.Xmm6 |
| 2785 | mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) |
| 2786 | .long 0xa548f3fc # cld; rep movsq |
| 2787 | lea 0x58(%rax),%rax # adjust stack pointer |
| 2788 | |
| 2789 | jmp .Lcommon_seh_tail |
| 2790 | .size ccm64_se_handler,.-ccm64_se_handler |
| 2791 | |
| 2792 | .type ctr32_se_handler,\@abi-omnipotent |
| 2793 | .align 16 |
| 2794 | ctr32_se_handler: |
| 2795 | push %rsi |
| 2796 | push %rdi |
| 2797 | push %rbx |
| 2798 | push %rbp |
| 2799 | push %r12 |
| 2800 | push %r13 |
| 2801 | push %r14 |
| 2802 | push %r15 |
| 2803 | pushfq |
| 2804 | sub \$64,%rsp |
| 2805 | |
| 2806 | mov 120($context),%rax # pull context->Rax |
| 2807 | mov 248($context),%rbx # pull context->Rip |
| 2808 | |
| 2809 | lea .Lctr32_body(%rip),%r10 |
| 2810 | cmp %r10,%rbx # context->Rip<"prologue" label |
| 2811 | jb .Lcommon_seh_tail |
| 2812 | |
| 2813 | mov 152($context),%rax # pull context->Rsp |
| 2814 | |
| 2815 | lea .Lctr32_ret(%rip),%r10 |
| 2816 | cmp %r10,%rbx |
| 2817 | jae .Lcommon_seh_tail |
| 2818 | |
| 2819 | lea 0x20(%rax),%rsi # %xmm save area |
| 2820 | lea 512($context),%rdi # &context.Xmm6 |
| 2821 | mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) |
| 2822 | .long 0xa548f3fc # cld; rep movsq |
| 2823 | lea 0xc8(%rax),%rax # adjust stack pointer |
| 2824 | |
| 2825 | jmp .Lcommon_seh_tail |
| 2826 | .size ctr32_se_handler,.-ctr32_se_handler |
| 2827 | |
| 2828 | .type xts_se_handler,\@abi-omnipotent |
| 2829 | .align 16 |
| 2830 | xts_se_handler: |
| 2831 | push %rsi |
| 2832 | push %rdi |
| 2833 | push %rbx |
| 2834 | push %rbp |
| 2835 | push %r12 |
| 2836 | push %r13 |
| 2837 | push %r14 |
| 2838 | push %r15 |
| 2839 | pushfq |
| 2840 | sub \$64,%rsp |
| 2841 | |
| 2842 | mov 120($context),%rax # pull context->Rax |
| 2843 | mov 248($context),%rbx # pull context->Rip |
| 2844 | |
| 2845 | mov 8($disp),%rsi # disp->ImageBase |
| 2846 | mov 56($disp),%r11 # disp->HandlerData |
| 2847 | |
| 2848 | mov 0(%r11),%r10d # HandlerData[0] |
| 2849 | lea (%rsi,%r10),%r10 # prologue lable |
| 2850 | cmp %r10,%rbx # context->Rip<prologue label |
| 2851 | jb .Lcommon_seh_tail |
| 2852 | |
| 2853 | mov 152($context),%rax # pull context->Rsp |
| 2854 | |
| 2855 | mov 4(%r11),%r10d # HandlerData[1] |
| 2856 | lea (%rsi,%r10),%r10 # epilogue label |
| 2857 | cmp %r10,%rbx # context->Rip>=epilogue label |
| 2858 | jae .Lcommon_seh_tail |
| 2859 | |
| 2860 | lea 0x60(%rax),%rsi # %xmm save area |
| 2861 | lea 512($context),%rdi # & context.Xmm6 |
| 2862 | mov \$20,%ecx # 10*sizeof(%xmm0)/sizeof(%rax) |
| 2863 | .long 0xa548f3fc # cld; rep movsq |
| 2864 | lea 0x68+160(%rax),%rax # adjust stack pointer |
| 2865 | |
| 2866 | jmp .Lcommon_seh_tail |
| 2867 | .size xts_se_handler,.-xts_se_handler |
| 2868 | ___ |
| 2869 | $code.=<<___; |
| 2870 | .type cbc_se_handler,\@abi-omnipotent |
| 2871 | .align 16 |
| 2872 | cbc_se_handler: |
| 2873 | push %rsi |
| 2874 | push %rdi |
| 2875 | push %rbx |
| 2876 | push %rbp |
| 2877 | push %r12 |
| 2878 | push %r13 |
| 2879 | push %r14 |
| 2880 | push %r15 |
| 2881 | pushfq |
| 2882 | sub \$64,%rsp |
| 2883 | |
| 2884 | mov 152($context),%rax # pull context->Rsp |
| 2885 | mov 248($context),%rbx # pull context->Rip |
| 2886 | |
| 2887 | lea .Lcbc_decrypt(%rip),%r10 |
| 2888 | cmp %r10,%rbx # context->Rip<"prologue" label |
| 2889 | jb .Lcommon_seh_tail |
| 2890 | |
| 2891 | lea .Lcbc_decrypt_body(%rip),%r10 |
| 2892 | cmp %r10,%rbx # context->Rip<cbc_decrypt_body |
| 2893 | jb .Lrestore_cbc_rax |
| 2894 | |
| 2895 | lea .Lcbc_ret(%rip),%r10 |
| 2896 | cmp %r10,%rbx # context->Rip>="epilogue" label |
| 2897 | jae .Lcommon_seh_tail |
| 2898 | |
| 2899 | lea 0(%rax),%rsi # top of stack |
| 2900 | lea 512($context),%rdi # &context.Xmm6 |
| 2901 | mov \$8,%ecx # 4*sizeof(%xmm0)/sizeof(%rax) |
| 2902 | .long 0xa548f3fc # cld; rep movsq |
| 2903 | lea 0x58(%rax),%rax # adjust stack pointer |
| 2904 | jmp .Lcommon_seh_tail |
| 2905 | |
| 2906 | .Lrestore_cbc_rax: |
| 2907 | mov 120($context),%rax |
| 2908 | |
| 2909 | .Lcommon_seh_tail: |
| 2910 | mov 8(%rax),%rdi |
| 2911 | mov 16(%rax),%rsi |
| 2912 | mov %rax,152($context) # restore context->Rsp |
| 2913 | mov %rsi,168($context) # restore context->Rsi |
| 2914 | mov %rdi,176($context) # restore context->Rdi |
| 2915 | |
| 2916 | mov 40($disp),%rdi # disp->ContextRecord |
| 2917 | mov $context,%rsi # context |
| 2918 | mov \$154,%ecx # sizeof(CONTEXT) |
| 2919 | .long 0xa548f3fc # cld; rep movsq |
| 2920 | |
| 2921 | mov $disp,%rsi |
| 2922 | xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER |
| 2923 | mov 8(%rsi),%rdx # arg2, disp->ImageBase |
| 2924 | mov 0(%rsi),%r8 # arg3, disp->ControlPc |
| 2925 | mov 16(%rsi),%r9 # arg4, disp->FunctionEntry |
| 2926 | mov 40(%rsi),%r10 # disp->ContextRecord |
| 2927 | lea 56(%rsi),%r11 # &disp->HandlerData |
| 2928 | lea 24(%rsi),%r12 # &disp->EstablisherFrame |
| 2929 | mov %r10,32(%rsp) # arg5 |
| 2930 | mov %r11,40(%rsp) # arg6 |
| 2931 | mov %r12,48(%rsp) # arg7 |
| 2932 | mov %rcx,56(%rsp) # arg8, (NULL) |
| 2933 | call *__imp_RtlVirtualUnwind(%rip) |
| 2934 | |
| 2935 | mov \$1,%eax # ExceptionContinueSearch |
| 2936 | add \$64,%rsp |
| 2937 | popfq |
| 2938 | pop %r15 |
| 2939 | pop %r14 |
| 2940 | pop %r13 |
| 2941 | pop %r12 |
| 2942 | pop %rbp |
| 2943 | pop %rbx |
| 2944 | pop %rdi |
| 2945 | pop %rsi |
| 2946 | ret |
| 2947 | .size cbc_se_handler,.-cbc_se_handler |
| 2948 | |
| 2949 | .section .pdata |
| 2950 | .align 4 |
| 2951 | ___ |
| 2952 | $code.=<<___ if ($PREFIX eq "aesni"); |
| 2953 | .rva .LSEH_begin_aesni_ecb_encrypt |
| 2954 | .rva .LSEH_end_aesni_ecb_encrypt |
| 2955 | .rva .LSEH_info_ecb |
| 2956 | |
| 2957 | .rva .LSEH_begin_aesni_ccm64_encrypt_blocks |
| 2958 | .rva .LSEH_end_aesni_ccm64_encrypt_blocks |
| 2959 | .rva .LSEH_info_ccm64_enc |
| 2960 | |
| 2961 | .rva .LSEH_begin_aesni_ccm64_decrypt_blocks |
| 2962 | .rva .LSEH_end_aesni_ccm64_decrypt_blocks |
| 2963 | .rva .LSEH_info_ccm64_dec |
| 2964 | |
| 2965 | .rva .LSEH_begin_aesni_ctr32_encrypt_blocks |
| 2966 | .rva .LSEH_end_aesni_ctr32_encrypt_blocks |
| 2967 | .rva .LSEH_info_ctr32 |
| 2968 | |
| 2969 | .rva .LSEH_begin_aesni_xts_encrypt |
| 2970 | .rva .LSEH_end_aesni_xts_encrypt |
| 2971 | .rva .LSEH_info_xts_enc |
| 2972 | |
| 2973 | .rva .LSEH_begin_aesni_xts_decrypt |
| 2974 | .rva .LSEH_end_aesni_xts_decrypt |
| 2975 | .rva .LSEH_info_xts_dec |
| 2976 | ___ |
| 2977 | $code.=<<___; |
| 2978 | .rva .LSEH_begin_${PREFIX}_cbc_encrypt |
| 2979 | .rva .LSEH_end_${PREFIX}_cbc_encrypt |
| 2980 | .rva .LSEH_info_cbc |
| 2981 | |
| 2982 | .rva ${PREFIX}_set_decrypt_key |
| 2983 | .rva .LSEH_end_set_decrypt_key |
| 2984 | .rva .LSEH_info_key |
| 2985 | |
| 2986 | .rva ${PREFIX}_set_encrypt_key |
| 2987 | .rva .LSEH_end_set_encrypt_key |
| 2988 | .rva .LSEH_info_key |
| 2989 | .section .xdata |
| 2990 | .align 8 |
| 2991 | ___ |
| 2992 | $code.=<<___ if ($PREFIX eq "aesni"); |
| 2993 | .LSEH_info_ecb: |
| 2994 | .byte 9,0,0,0 |
| 2995 | .rva ecb_se_handler |
| 2996 | .LSEH_info_ccm64_enc: |
| 2997 | .byte 9,0,0,0 |
| 2998 | .rva ccm64_se_handler |
| 2999 | .rva .Lccm64_enc_body,.Lccm64_enc_ret # HandlerData[] |
| 3000 | .LSEH_info_ccm64_dec: |
| 3001 | .byte 9,0,0,0 |
| 3002 | .rva ccm64_se_handler |
| 3003 | .rva .Lccm64_dec_body,.Lccm64_dec_ret # HandlerData[] |
| 3004 | .LSEH_info_ctr32: |
| 3005 | .byte 9,0,0,0 |
| 3006 | .rva ctr32_se_handler |
| 3007 | .LSEH_info_xts_enc: |
| 3008 | .byte 9,0,0,0 |
| 3009 | .rva xts_se_handler |
| 3010 | .rva .Lxts_enc_body,.Lxts_enc_epilogue # HandlerData[] |
| 3011 | .LSEH_info_xts_dec: |
| 3012 | .byte 9,0,0,0 |
| 3013 | .rva xts_se_handler |
| 3014 | .rva .Lxts_dec_body,.Lxts_dec_epilogue # HandlerData[] |
| 3015 | ___ |
| 3016 | $code.=<<___; |
| 3017 | .LSEH_info_cbc: |
| 3018 | .byte 9,0,0,0 |
| 3019 | .rva cbc_se_handler |
| 3020 | .LSEH_info_key: |
| 3021 | .byte 0x01,0x04,0x01,0x00 |
| 3022 | .byte 0x04,0x02,0x00,0x00 # sub rsp,8 |
| 3023 | ___ |
| 3024 | } |
| 3025 | |
| 3026 | sub rex { |
| 3027 | local *opcode=shift; |
| 3028 | my ($dst,$src)=@_; |
| 3029 | my $rex=0; |
| 3030 | |
| 3031 | $rex|=0x04 if($dst>=8); |
| 3032 | $rex|=0x01 if($src>=8); |
| 3033 | push @opcode,$rex|0x40 if($rex); |
| 3034 | } |
| 3035 | |
| 3036 | sub aesni { |
| 3037 | my $line=shift; |
| 3038 | my @opcode=(0x66); |
| 3039 | |
| 3040 | if ($line=~/(aeskeygenassist)\s+\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) { |
| 3041 | rex(\@opcode,$4,$3); |
| 3042 | push @opcode,0x0f,0x3a,0xdf; |
| 3043 | push @opcode,0xc0|($3&7)|(($4&7)<<3); # ModR/M |
| 3044 | my $c=$2; |
| 3045 | push @opcode,$c=~/^0/?oct($c):$c; |
| 3046 | return ".byte\t".join(',',@opcode); |
| 3047 | } |
| 3048 | elsif ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) { |
| 3049 | my %opcodelet = ( |
| 3050 | "aesimc" => 0xdb, |
| 3051 | "aesenc" => 0xdc, "aesenclast" => 0xdd, |
| 3052 | "aesdec" => 0xde, "aesdeclast" => 0xdf |
| 3053 | ); |
| 3054 | return undef if (!defined($opcodelet{$1})); |
| 3055 | rex(\@opcode,$3,$2); |
| 3056 | push @opcode,0x0f,0x38,$opcodelet{$1}; |
| 3057 | push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M |
| 3058 | return ".byte\t".join(',',@opcode); |
| 3059 | } |
| 3060 | return $line; |
| 3061 | } |
| 3062 | |
| 3063 | $code =~ s/\`([^\`]*)\`/eval($1)/gem; |
| 3064 | $code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem; |
| 3065 | |
| 3066 | print $code; |
| 3067 | |
| 3068 | close STDOUT; |