Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* rsautl.c */ |
| 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| 3 | * project 2000. |
| 4 | */ |
| 5 | /* ==================================================================== |
| 6 | * Copyright (c) 2000 The OpenSSL Project. All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in |
| 17 | * the documentation and/or other materials provided with the |
| 18 | * distribution. |
| 19 | * |
| 20 | * 3. All advertising materials mentioning features or use of this |
| 21 | * software must display the following acknowledgment: |
| 22 | * "This product includes software developed by the OpenSSL Project |
| 23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| 24 | * |
| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 26 | * endorse or promote products derived from this software without |
| 27 | * prior written permission. For written permission, please contact |
| 28 | * licensing@OpenSSL.org. |
| 29 | * |
| 30 | * 5. Products derived from this software may not be called "OpenSSL" |
| 31 | * nor may "OpenSSL" appear in their names without prior written |
| 32 | * permission of the OpenSSL Project. |
| 33 | * |
| 34 | * 6. Redistributions of any form whatsoever must retain the following |
| 35 | * acknowledgment: |
| 36 | * "This product includes software developed by the OpenSSL Project |
| 37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| 38 | * |
| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 51 | * ==================================================================== |
| 52 | * |
| 53 | * This product includes cryptographic software written by Eric Young |
| 54 | * (eay@cryptsoft.com). This product includes software written by Tim |
| 55 | * Hudson (tjh@cryptsoft.com). |
| 56 | * |
| 57 | */ |
| 58 | |
| 59 | #include <openssl/opensslconf.h> |
| 60 | #ifndef OPENSSL_NO_RSA |
| 61 | |
| 62 | #include "apps.h" |
| 63 | #include <string.h> |
| 64 | #include <openssl/err.h> |
| 65 | #include <openssl/pem.h> |
| 66 | #include <openssl/rsa.h> |
| 67 | |
| 68 | #define RSA_SIGN 1 |
| 69 | #define RSA_VERIFY 2 |
| 70 | #define RSA_ENCRYPT 3 |
| 71 | #define RSA_DECRYPT 4 |
| 72 | |
| 73 | #define KEY_PRIVKEY 1 |
| 74 | #define KEY_PUBKEY 2 |
| 75 | #define KEY_CERT 3 |
| 76 | |
| 77 | static void usage(void); |
| 78 | |
| 79 | #undef PROG |
| 80 | |
| 81 | #define PROG rsautl_main |
| 82 | |
| 83 | int MAIN(int argc, char **); |
| 84 | |
| 85 | int MAIN(int argc, char **argv) |
| 86 | { |
| 87 | ENGINE *e = NULL; |
| 88 | BIO *in = NULL, *out = NULL; |
| 89 | char *infile = NULL, *outfile = NULL; |
| 90 | #ifndef OPENSSL_NO_ENGINE |
| 91 | char *engine = NULL; |
| 92 | #endif |
| 93 | char *keyfile = NULL; |
| 94 | char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY; |
| 95 | int keyform = FORMAT_PEM; |
| 96 | char need_priv = 0, badarg = 0, rev = 0; |
| 97 | char hexdump = 0, asn1parse = 0; |
| 98 | X509 *x; |
| 99 | EVP_PKEY *pkey = NULL; |
| 100 | RSA *rsa = NULL; |
| 101 | unsigned char *rsa_in = NULL, *rsa_out = NULL, pad; |
| 102 | char *passargin = NULL, *passin = NULL; |
| 103 | int rsa_inlen, rsa_outlen = 0; |
| 104 | int keysize; |
| 105 | |
| 106 | int ret = 1; |
| 107 | |
| 108 | argc--; |
| 109 | argv++; |
| 110 | |
| 111 | if(!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); |
| 112 | |
| 113 | if (!load_config(bio_err, NULL)) |
| 114 | goto end; |
| 115 | ERR_load_crypto_strings(); |
| 116 | OpenSSL_add_all_algorithms(); |
| 117 | pad = RSA_PKCS1_PADDING; |
| 118 | |
| 119 | while(argc >= 1) |
| 120 | { |
| 121 | if (!strcmp(*argv,"-in")) { |
| 122 | if (--argc < 1) |
| 123 | badarg = 1; |
| 124 | else |
| 125 | infile= *(++argv); |
| 126 | } else if (!strcmp(*argv,"-out")) { |
| 127 | if (--argc < 1) |
| 128 | badarg = 1; |
| 129 | else |
| 130 | outfile= *(++argv); |
| 131 | } else if(!strcmp(*argv, "-inkey")) { |
| 132 | if (--argc < 1) |
| 133 | badarg = 1; |
| 134 | else |
| 135 | keyfile = *(++argv); |
| 136 | } else if (!strcmp(*argv,"-passin")) { |
| 137 | if (--argc < 1) |
| 138 | badarg = 1; |
| 139 | else |
| 140 | passargin= *(++argv); |
| 141 | } else if (strcmp(*argv,"-keyform") == 0) { |
| 142 | if (--argc < 1) |
| 143 | badarg = 1; |
| 144 | else |
| 145 | keyform=str2fmt(*(++argv)); |
| 146 | #ifndef OPENSSL_NO_ENGINE |
| 147 | } else if(!strcmp(*argv, "-engine")) { |
| 148 | if (--argc < 1) |
| 149 | badarg = 1; |
| 150 | else |
| 151 | engine = *(++argv); |
| 152 | #endif |
| 153 | } else if(!strcmp(*argv, "-pubin")) { |
| 154 | key_type = KEY_PUBKEY; |
| 155 | } else if(!strcmp(*argv, "-certin")) { |
| 156 | key_type = KEY_CERT; |
| 157 | } |
| 158 | else if(!strcmp(*argv, "-asn1parse")) asn1parse = 1; |
| 159 | else if(!strcmp(*argv, "-hexdump")) hexdump = 1; |
| 160 | else if(!strcmp(*argv, "-raw")) pad = RSA_NO_PADDING; |
| 161 | else if(!strcmp(*argv, "-oaep")) pad = RSA_PKCS1_OAEP_PADDING; |
| 162 | else if(!strcmp(*argv, "-ssl")) pad = RSA_SSLV23_PADDING; |
| 163 | else if(!strcmp(*argv, "-pkcs")) pad = RSA_PKCS1_PADDING; |
| 164 | else if(!strcmp(*argv, "-x931")) pad = RSA_X931_PADDING; |
| 165 | else if(!strcmp(*argv, "-sign")) { |
| 166 | rsa_mode = RSA_SIGN; |
| 167 | need_priv = 1; |
| 168 | } else if(!strcmp(*argv, "-verify")) rsa_mode = RSA_VERIFY; |
| 169 | else if(!strcmp(*argv, "-rev")) rev = 1; |
| 170 | else if(!strcmp(*argv, "-encrypt")) rsa_mode = RSA_ENCRYPT; |
| 171 | else if(!strcmp(*argv, "-decrypt")) { |
| 172 | rsa_mode = RSA_DECRYPT; |
| 173 | need_priv = 1; |
| 174 | } else badarg = 1; |
| 175 | if(badarg) { |
| 176 | usage(); |
| 177 | goto end; |
| 178 | } |
| 179 | argc--; |
| 180 | argv++; |
| 181 | } |
| 182 | |
| 183 | if(need_priv && (key_type != KEY_PRIVKEY)) { |
| 184 | BIO_printf(bio_err, "A private key is needed for this operation\n"); |
| 185 | goto end; |
| 186 | } |
| 187 | |
| 188 | #ifndef OPENSSL_NO_ENGINE |
| 189 | e = setup_engine(bio_err, engine, 0); |
| 190 | #endif |
| 191 | if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { |
| 192 | BIO_printf(bio_err, "Error getting password\n"); |
| 193 | goto end; |
| 194 | } |
| 195 | |
| 196 | /* FIXME: seed PRNG only if needed */ |
| 197 | app_RAND_load_file(NULL, bio_err, 0); |
| 198 | |
| 199 | switch(key_type) { |
| 200 | case KEY_PRIVKEY: |
| 201 | pkey = load_key(bio_err, keyfile, keyform, 0, |
| 202 | passin, e, "Private Key"); |
| 203 | break; |
| 204 | |
| 205 | case KEY_PUBKEY: |
| 206 | pkey = load_pubkey(bio_err, keyfile, keyform, 0, |
| 207 | NULL, e, "Public Key"); |
| 208 | break; |
| 209 | |
| 210 | case KEY_CERT: |
| 211 | x = load_cert(bio_err, keyfile, keyform, |
| 212 | NULL, e, "Certificate"); |
| 213 | if(x) { |
| 214 | pkey = X509_get_pubkey(x); |
| 215 | X509_free(x); |
| 216 | } |
| 217 | break; |
| 218 | } |
| 219 | |
| 220 | if(!pkey) { |
| 221 | return 1; |
| 222 | } |
| 223 | |
| 224 | rsa = EVP_PKEY_get1_RSA(pkey); |
| 225 | EVP_PKEY_free(pkey); |
| 226 | |
| 227 | if(!rsa) { |
| 228 | BIO_printf(bio_err, "Error getting RSA key\n"); |
| 229 | ERR_print_errors(bio_err); |
| 230 | goto end; |
| 231 | } |
| 232 | |
| 233 | |
| 234 | if(infile) { |
| 235 | if(!(in = BIO_new_file(infile, "rb"))) { |
| 236 | BIO_printf(bio_err, "Error Reading Input File\n"); |
| 237 | ERR_print_errors(bio_err); |
| 238 | goto end; |
| 239 | } |
| 240 | } else in = BIO_new_fp(stdin, BIO_NOCLOSE); |
| 241 | |
| 242 | if(outfile) { |
| 243 | if(!(out = BIO_new_file(outfile, "wb"))) { |
| 244 | BIO_printf(bio_err, "Error Reading Output File\n"); |
| 245 | ERR_print_errors(bio_err); |
| 246 | goto end; |
| 247 | } |
| 248 | } else { |
| 249 | out = BIO_new_fp(stdout, BIO_NOCLOSE); |
| 250 | #ifdef OPENSSL_SYS_VMS |
| 251 | { |
| 252 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| 253 | out = BIO_push(tmpbio, out); |
| 254 | } |
| 255 | #endif |
| 256 | } |
| 257 | |
| 258 | keysize = RSA_size(rsa); |
| 259 | |
| 260 | rsa_in = OPENSSL_malloc(keysize * 2); |
| 261 | rsa_out = OPENSSL_malloc(keysize); |
| 262 | |
| 263 | /* Read the input data */ |
| 264 | rsa_inlen = BIO_read(in, rsa_in, keysize * 2); |
| 265 | if(rsa_inlen <= 0) { |
| 266 | BIO_printf(bio_err, "Error reading input Data\n"); |
| 267 | exit(1); |
| 268 | } |
| 269 | if(rev) { |
| 270 | int i; |
| 271 | unsigned char ctmp; |
| 272 | for(i = 0; i < rsa_inlen/2; i++) { |
| 273 | ctmp = rsa_in[i]; |
| 274 | rsa_in[i] = rsa_in[rsa_inlen - 1 - i]; |
| 275 | rsa_in[rsa_inlen - 1 - i] = ctmp; |
| 276 | } |
| 277 | } |
| 278 | switch(rsa_mode) { |
| 279 | |
| 280 | case RSA_VERIFY: |
| 281 | rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
| 282 | break; |
| 283 | |
| 284 | case RSA_SIGN: |
| 285 | rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
| 286 | break; |
| 287 | |
| 288 | case RSA_ENCRYPT: |
| 289 | rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
| 290 | break; |
| 291 | |
| 292 | case RSA_DECRYPT: |
| 293 | rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
| 294 | break; |
| 295 | |
| 296 | } |
| 297 | |
| 298 | if(rsa_outlen <= 0) { |
| 299 | BIO_printf(bio_err, "RSA operation error\n"); |
| 300 | ERR_print_errors(bio_err); |
| 301 | goto end; |
| 302 | } |
| 303 | ret = 0; |
| 304 | if(asn1parse) { |
| 305 | if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) { |
| 306 | ERR_print_errors(bio_err); |
| 307 | } |
| 308 | } else if(hexdump) BIO_dump(out, (char *)rsa_out, rsa_outlen); |
| 309 | else BIO_write(out, rsa_out, rsa_outlen); |
| 310 | end: |
| 311 | RSA_free(rsa); |
| 312 | BIO_free(in); |
| 313 | BIO_free_all(out); |
| 314 | if(rsa_in) OPENSSL_free(rsa_in); |
| 315 | if(rsa_out) OPENSSL_free(rsa_out); |
| 316 | if(passin) OPENSSL_free(passin); |
| 317 | return ret; |
| 318 | } |
| 319 | |
| 320 | static void usage() |
| 321 | { |
| 322 | BIO_printf(bio_err, "Usage: rsautl [options]\n"); |
| 323 | BIO_printf(bio_err, "-in file input file\n"); |
| 324 | BIO_printf(bio_err, "-out file output file\n"); |
| 325 | BIO_printf(bio_err, "-inkey file input key\n"); |
| 326 | BIO_printf(bio_err, "-keyform arg private key format - default PEM\n"); |
| 327 | BIO_printf(bio_err, "-pubin input is an RSA public\n"); |
| 328 | BIO_printf(bio_err, "-certin input is a certificate carrying an RSA public key\n"); |
| 329 | BIO_printf(bio_err, "-ssl use SSL v2 padding\n"); |
| 330 | BIO_printf(bio_err, "-raw use no padding\n"); |
| 331 | BIO_printf(bio_err, "-pkcs use PKCS#1 v1.5 padding (default)\n"); |
| 332 | BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n"); |
| 333 | BIO_printf(bio_err, "-sign sign with private key\n"); |
| 334 | BIO_printf(bio_err, "-verify verify with public key\n"); |
| 335 | BIO_printf(bio_err, "-encrypt encrypt with public key\n"); |
| 336 | BIO_printf(bio_err, "-decrypt decrypt with private key\n"); |
| 337 | BIO_printf(bio_err, "-hexdump hex dump output\n"); |
| 338 | #ifndef OPENSSL_NO_ENGINE |
| 339 | BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n"); |
| 340 | BIO_printf (bio_err, "-passin arg pass phrase source\n"); |
| 341 | #endif |
| 342 | |
| 343 | } |
| 344 | |
| 345 | #else /* !OPENSSL_NO_RSA */ |
| 346 | |
| 347 | # if PEDANTIC |
| 348 | static void *dummy=&dummy; |
| 349 | # endif |
| 350 | |
| 351 | #endif |