1 /* rsautl.c */ 2 /* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4 * 2000. 5 */ 6 /* ==================================================================== 7 * Copyright (c) 2000 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * licensing@OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 * 54 * This product includes cryptographic software written by Eric Young 55 * (eay@cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh@cryptsoft.com). 57 * 58 */ 59 60 #include <openssl/opensslconf.h> 61 #ifndef OPENSSL_NO_RSA 62 63 # include "apps.h" 64 # include <string.h> 65 # include <openssl/err.h> 66 # include <openssl/pem.h> 67 # include <openssl/rsa.h> 68 69 # define RSA_SIGN 1 70 # define RSA_VERIFY 2 71 # define RSA_ENCRYPT 3 72 # define RSA_DECRYPT 4 73 74 # define KEY_PRIVKEY 1 75 # define KEY_PUBKEY 2 76 # define KEY_CERT 3 77 78 static void usage(void); 79 80 # undef PROG 81 82 # define PROG rsautl_main 83 84 int MAIN(int argc, char **); 85 86 int MAIN(int argc, char **argv) 87 { 88 ENGINE *e = NULL; 89 BIO *in = NULL, *out = NULL; 90 char *infile = NULL, *outfile = NULL; 91 # ifndef OPENSSL_NO_ENGINE 92 char *engine = NULL; 93 # endif 94 char *keyfile = NULL; 95 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY; 96 int keyform = FORMAT_PEM; 97 char need_priv = 0, badarg = 0, rev = 0; 98 char hexdump = 0, asn1parse = 0; 99 X509 *x; 100 EVP_PKEY *pkey = NULL; 101 RSA *rsa = NULL; 102 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad; 103 char *passargin = NULL, *passin = NULL; 104 int rsa_inlen, rsa_outlen = 0; 105 int keysize; 106 107 int ret = 1; 108 109 argc--; 110 argv++; 111 112 if (!bio_err) 113 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 114 115 if (!load_config(bio_err, NULL)) 116 goto end; 117 ERR_load_crypto_strings(); 118 OpenSSL_add_all_algorithms(); 119 pad = RSA_PKCS1_PADDING; 120 121 while (argc >= 1) { 122 if (!strcmp(*argv, "-in")) { 123 if (--argc < 1) 124 badarg = 1; 125 else 126 infile = *(++argv); 127 } else if (!strcmp(*argv, "-out")) { 128 if (--argc < 1) 129 badarg = 1; 130 else 131 outfile = *(++argv); 132 } else if (!strcmp(*argv, "-inkey")) { 133 if (--argc < 1) 134 badarg = 1; 135 else 136 keyfile = *(++argv); 137 } else if (!strcmp(*argv, "-passin")) { 138 if (--argc < 1) 139 badarg = 1; 140 else 141 passargin = *(++argv); 142 } else if (strcmp(*argv, "-keyform") == 0) { 143 if (--argc < 1) 144 badarg = 1; 145 else 146 keyform = str2fmt(*(++argv)); 147 # ifndef OPENSSL_NO_ENGINE 148 } else if (!strcmp(*argv, "-engine")) { 149 if (--argc < 1) 150 badarg = 1; 151 else 152 engine = *(++argv); 153 # endif 154 } else if (!strcmp(*argv, "-pubin")) { 155 key_type = KEY_PUBKEY; 156 } else if (!strcmp(*argv, "-certin")) { 157 key_type = KEY_CERT; 158 } else if (!strcmp(*argv, "-asn1parse")) 159 asn1parse = 1; 160 else if (!strcmp(*argv, "-hexdump")) 161 hexdump = 1; 162 else if (!strcmp(*argv, "-raw")) 163 pad = RSA_NO_PADDING; 164 else if (!strcmp(*argv, "-oaep")) 165 pad = RSA_PKCS1_OAEP_PADDING; 166 else if (!strcmp(*argv, "-ssl")) 167 pad = RSA_SSLV23_PADDING; 168 else if (!strcmp(*argv, "-pkcs")) 169 pad = RSA_PKCS1_PADDING; 170 else if (!strcmp(*argv, "-x931")) 171 pad = RSA_X931_PADDING; 172 else if (!strcmp(*argv, "-sign")) { 173 rsa_mode = RSA_SIGN; 174 need_priv = 1; 175 } else if (!strcmp(*argv, "-verify")) 176 rsa_mode = RSA_VERIFY; 177 else if (!strcmp(*argv, "-rev")) 178 rev = 1; 179 else if (!strcmp(*argv, "-encrypt")) 180 rsa_mode = RSA_ENCRYPT; 181 else if (!strcmp(*argv, "-decrypt")) { 182 rsa_mode = RSA_DECRYPT; 183 need_priv = 1; 184 } else 185 badarg = 1; 186 if (badarg) { 187 usage(); 188 goto end; 189 } 190 argc--; 191 argv++; 192 } 193 194 if (need_priv && (key_type != KEY_PRIVKEY)) { 195 BIO_printf(bio_err, "A private key is needed for this operation\n"); 196 goto end; 197 } 198 # ifndef OPENSSL_NO_ENGINE 199 e = setup_engine(bio_err, engine, 0); 200 # endif 201 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { 202 BIO_printf(bio_err, "Error getting password\n"); 203 goto end; 204 } 205 206 /* FIXME: seed PRNG only if needed */ 207 app_RAND_load_file(NULL, bio_err, 0); 208 209 switch (key_type) { 210 case KEY_PRIVKEY: 211 pkey = load_key(bio_err, keyfile, keyform, 0, 212 passin, e, "Private Key"); 213 break; 214 215 case KEY_PUBKEY: 216 pkey = load_pubkey(bio_err, keyfile, keyform, 0, 217 NULL, e, "Public Key"); 218 break; 219 220 case KEY_CERT: 221 x = load_cert(bio_err, keyfile, keyform, NULL, e, "Certificate"); 222 if (x) { 223 pkey = X509_get_pubkey(x); 224 X509_free(x); 225 } 226 break; 227 } 228 229 if (!pkey) { 230 return 1; 231 } 232 233 rsa = EVP_PKEY_get1_RSA(pkey); 234 EVP_PKEY_free(pkey); 235 236 if (!rsa) { 237 BIO_printf(bio_err, "Error getting RSA key\n"); 238 ERR_print_errors(bio_err); 239 goto end; 240 } 241 242 if (infile) { 243 if (!(in = BIO_new_file(infile, "rb"))) { 244 BIO_printf(bio_err, "Error Reading Input File\n"); 245 ERR_print_errors(bio_err); 246 goto end; 247 } 248 } else 249 in = BIO_new_fp(stdin, BIO_NOCLOSE); 250 251 if (outfile) { 252 if (!(out = BIO_new_file(outfile, "wb"))) { 253 BIO_printf(bio_err, "Error Writing Output File\n"); 254 ERR_print_errors(bio_err); 255 goto end; 256 } 257 } else { 258 out = BIO_new_fp(stdout, BIO_NOCLOSE); 259 # ifdef OPENSSL_SYS_VMS 260 { 261 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 262 out = BIO_push(tmpbio, out); 263 } 264 # endif 265 } 266 267 keysize = RSA_size(rsa); 268 269 rsa_in = OPENSSL_malloc(keysize * 2); 270 rsa_out = OPENSSL_malloc(keysize); 271 if (!rsa_in || !rsa_out) { 272 BIO_printf(bio_err, "Out of memory\n"); 273 ERR_print_errors(bio_err); 274 goto end; 275 } 276 277 /* Read the input data */ 278 rsa_inlen = BIO_read(in, rsa_in, keysize * 2); 279 if (rsa_inlen < 0) { 280 BIO_printf(bio_err, "Error reading input Data\n"); 281 exit(1); 282 } 283 if (rev) { 284 int i; 285 unsigned char ctmp; 286 for (i = 0; i < rsa_inlen / 2; i++) { 287 ctmp = rsa_in[i]; 288 rsa_in[i] = rsa_in[rsa_inlen - 1 - i]; 289 rsa_in[rsa_inlen - 1 - i] = ctmp; 290 } 291 } 292 switch (rsa_mode) { 293 294 case RSA_VERIFY: 295 rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 296 break; 297 298 case RSA_SIGN: 299 rsa_outlen = 300 RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 301 break; 302 303 case RSA_ENCRYPT: 304 rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 305 break; 306 307 case RSA_DECRYPT: 308 rsa_outlen = 309 RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 310 break; 311 312 } 313 314 if (rsa_outlen < 0) { 315 BIO_printf(bio_err, "RSA operation error\n"); 316 ERR_print_errors(bio_err); 317 goto end; 318 } 319 ret = 0; 320 if (asn1parse) { 321 if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) { 322 ERR_print_errors(bio_err); 323 } 324 } else if (hexdump) 325 BIO_dump(out, (char *)rsa_out, rsa_outlen); 326 else 327 BIO_write(out, rsa_out, rsa_outlen); 328 end: 329 RSA_free(rsa); 330 BIO_free(in); 331 BIO_free_all(out); 332 if (rsa_in) 333 OPENSSL_free(rsa_in); 334 if (rsa_out) 335 OPENSSL_free(rsa_out); 336 if (passin) 337 OPENSSL_free(passin); 338 return ret; 339 } 340 341 static void usage() 342 { 343 BIO_printf(bio_err, "Usage: rsautl [options]\n"); 344 BIO_printf(bio_err, "-in file input file\n"); 345 BIO_printf(bio_err, "-out file output file\n"); 346 BIO_printf(bio_err, "-inkey file input key\n"); 347 BIO_printf(bio_err, "-keyform arg private key format - default PEM\n"); 348 BIO_printf(bio_err, "-pubin input is an RSA public\n"); 349 BIO_printf(bio_err, 350 "-certin input is a certificate carrying an RSA public key\n"); 351 BIO_printf(bio_err, "-ssl use SSL v2 padding\n"); 352 BIO_printf(bio_err, "-raw use no padding\n"); 353 BIO_printf(bio_err, 354 "-pkcs use PKCS#1 v1.5 padding (default)\n"); 355 BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n"); 356 BIO_printf(bio_err, "-sign sign with private key\n"); 357 BIO_printf(bio_err, "-verify verify with public key\n"); 358 BIO_printf(bio_err, "-encrypt encrypt with public key\n"); 359 BIO_printf(bio_err, "-decrypt decrypt with private key\n"); 360 BIO_printf(bio_err, "-hexdump hex dump output\n"); 361 # ifndef OPENSSL_NO_ENGINE 362 BIO_printf(bio_err, 363 "-engine e use engine e, possibly a hardware device.\n"); 364 BIO_printf(bio_err, "-passin arg pass phrase source\n"); 365 # endif 366 367 } 368 369 #else /* !OPENSSL_NO_RSA */ 370 371 # if PEDANTIC 372 static void *dummy = &dummy; 373 # endif 374 375 #endif 376