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 char *engine = NULL; 92 char *keyfile = NULL; 93 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY; 94 int keyform = FORMAT_PEM; 95 char need_priv = 0, badarg = 0, rev = 0; 96 char hexdump = 0, asn1parse = 0; 97 X509 *x; 98 EVP_PKEY *pkey = NULL; 99 RSA *rsa = NULL; 100 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad; 101 char *passargin = NULL, *passin = NULL; 102 int rsa_inlen, rsa_outlen = 0; 103 int keysize; 104 105 int ret = 1; 106 107 argc--; 108 argv++; 109 110 if (!bio_err) 111 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 if (!strcmp(*argv, "-in")) { 121 if (--argc < 1) 122 badarg = 1; 123 else 124 infile = *(++argv); 125 } else if (!strcmp(*argv, "-out")) { 126 if (--argc < 1) 127 badarg = 1; 128 else 129 outfile = *(++argv); 130 } else if (!strcmp(*argv, "-inkey")) { 131 if (--argc < 1) 132 badarg = 1; 133 else 134 keyfile = *(++argv); 135 } else if (!strcmp(*argv, "-passin")) { 136 if (--argc < 1) 137 badarg = 1; 138 else 139 passargin = *(++argv); 140 } else if (strcmp(*argv, "-keyform") == 0) { 141 if (--argc < 1) 142 badarg = 1; 143 else 144 keyform = str2fmt(*(++argv)); 145 # ifndef OPENSSL_NO_ENGINE 146 } else if (!strcmp(*argv, "-engine")) { 147 if (--argc < 1) 148 badarg = 1; 149 else 150 engine = *(++argv); 151 # endif 152 } else if (!strcmp(*argv, "-pubin")) { 153 key_type = KEY_PUBKEY; 154 } else if (!strcmp(*argv, "-certin")) { 155 key_type = KEY_CERT; 156 } else if (!strcmp(*argv, "-asn1parse")) 157 asn1parse = 1; 158 else if (!strcmp(*argv, "-hexdump")) 159 hexdump = 1; 160 else if (!strcmp(*argv, "-raw")) 161 pad = RSA_NO_PADDING; 162 else if (!strcmp(*argv, "-oaep")) 163 pad = RSA_PKCS1_OAEP_PADDING; 164 else if (!strcmp(*argv, "-ssl")) 165 pad = RSA_SSLV23_PADDING; 166 else if (!strcmp(*argv, "-pkcs")) 167 pad = RSA_PKCS1_PADDING; 168 else if (!strcmp(*argv, "-x931")) 169 pad = RSA_X931_PADDING; 170 else if (!strcmp(*argv, "-sign")) { 171 rsa_mode = RSA_SIGN; 172 need_priv = 1; 173 } else if (!strcmp(*argv, "-verify")) 174 rsa_mode = RSA_VERIFY; 175 else if (!strcmp(*argv, "-rev")) 176 rev = 1; 177 else if (!strcmp(*argv, "-encrypt")) 178 rsa_mode = RSA_ENCRYPT; 179 else if (!strcmp(*argv, "-decrypt")) { 180 rsa_mode = RSA_DECRYPT; 181 need_priv = 1; 182 } else 183 badarg = 1; 184 if (badarg) { 185 usage(); 186 goto end; 187 } 188 argc--; 189 argv++; 190 } 191 192 if (need_priv && (key_type != KEY_PRIVKEY)) { 193 BIO_printf(bio_err, "A private key is needed for this operation\n"); 194 goto end; 195 } 196 e = setup_engine(bio_err, engine, 0); 197 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { 198 BIO_printf(bio_err, "Error getting password\n"); 199 goto end; 200 } 201 202 /* FIXME: seed PRNG only if needed */ 203 app_RAND_load_file(NULL, bio_err, 0); 204 205 switch (key_type) { 206 case KEY_PRIVKEY: 207 pkey = load_key(bio_err, keyfile, keyform, 0, 208 passin, e, "Private Key"); 209 break; 210 211 case KEY_PUBKEY: 212 pkey = load_pubkey(bio_err, keyfile, keyform, 0, 213 NULL, e, "Public Key"); 214 break; 215 216 case KEY_CERT: 217 x = load_cert(bio_err, keyfile, keyform, NULL, e, "Certificate"); 218 if (x) { 219 pkey = X509_get_pubkey(x); 220 X509_free(x); 221 } 222 break; 223 } 224 225 if (!pkey) { 226 return 1; 227 } 228 229 rsa = EVP_PKEY_get1_RSA(pkey); 230 EVP_PKEY_free(pkey); 231 232 if (!rsa) { 233 BIO_printf(bio_err, "Error getting RSA key\n"); 234 ERR_print_errors(bio_err); 235 goto end; 236 } 237 238 if (infile) { 239 if (!(in = BIO_new_file(infile, "rb"))) { 240 BIO_printf(bio_err, "Error Reading Input File\n"); 241 ERR_print_errors(bio_err); 242 goto end; 243 } 244 } else 245 in = BIO_new_fp(stdin, BIO_NOCLOSE); 246 247 if (outfile) { 248 if (!(out = BIO_new_file(outfile, "wb"))) { 249 BIO_printf(bio_err, "Error Writing Output File\n"); 250 ERR_print_errors(bio_err); 251 goto end; 252 } 253 } else { 254 out = BIO_new_fp(stdout, BIO_NOCLOSE); 255 # ifdef OPENSSL_SYS_VMS 256 { 257 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 258 out = BIO_push(tmpbio, out); 259 } 260 # endif 261 } 262 263 keysize = RSA_size(rsa); 264 265 rsa_in = OPENSSL_malloc(keysize * 2); 266 rsa_out = OPENSSL_malloc(keysize); 267 if (!rsa_in || !rsa_out) { 268 BIO_printf(bio_err, "Out of memory\n"); 269 ERR_print_errors(bio_err); 270 goto end; 271 } 272 273 /* Read the input data */ 274 rsa_inlen = BIO_read(in, rsa_in, keysize * 2); 275 if (rsa_inlen < 0) { 276 BIO_printf(bio_err, "Error reading input Data\n"); 277 exit(1); 278 } 279 if (rev) { 280 int i; 281 unsigned char ctmp; 282 for (i = 0; i < rsa_inlen / 2; i++) { 283 ctmp = rsa_in[i]; 284 rsa_in[i] = rsa_in[rsa_inlen - 1 - i]; 285 rsa_in[rsa_inlen - 1 - i] = ctmp; 286 } 287 } 288 switch (rsa_mode) { 289 290 case RSA_VERIFY: 291 rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 292 break; 293 294 case RSA_SIGN: 295 rsa_outlen = 296 RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 297 break; 298 299 case RSA_ENCRYPT: 300 rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 301 break; 302 303 case RSA_DECRYPT: 304 rsa_outlen = 305 RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 306 break; 307 308 } 309 310 if (rsa_outlen < 0) { 311 BIO_printf(bio_err, "RSA operation error\n"); 312 ERR_print_errors(bio_err); 313 goto end; 314 } 315 ret = 0; 316 if (asn1parse) { 317 if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) { 318 ERR_print_errors(bio_err); 319 } 320 } else if (hexdump) 321 BIO_dump(out, (char *)rsa_out, rsa_outlen); 322 else 323 BIO_write(out, rsa_out, rsa_outlen); 324 end: 325 RSA_free(rsa); 326 release_engine(e); 327 BIO_free(in); 328 BIO_free_all(out); 329 if (rsa_in) 330 OPENSSL_free(rsa_in); 331 if (rsa_out) 332 OPENSSL_free(rsa_out); 333 if (passin) 334 OPENSSL_free(passin); 335 return ret; 336 } 337 338 static void usage() 339 { 340 BIO_printf(bio_err, "Usage: rsautl [options]\n"); 341 BIO_printf(bio_err, "-in file input file\n"); 342 BIO_printf(bio_err, "-out file output file\n"); 343 BIO_printf(bio_err, "-inkey file input key\n"); 344 BIO_printf(bio_err, "-keyform arg private key format - default PEM\n"); 345 BIO_printf(bio_err, "-pubin input is an RSA public\n"); 346 BIO_printf(bio_err, 347 "-certin input is a certificate carrying an RSA public key\n"); 348 BIO_printf(bio_err, "-ssl use SSL v2 padding\n"); 349 BIO_printf(bio_err, "-raw use no padding\n"); 350 BIO_printf(bio_err, 351 "-pkcs use PKCS#1 v1.5 padding (default)\n"); 352 BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n"); 353 BIO_printf(bio_err, "-sign sign with private key\n"); 354 BIO_printf(bio_err, "-verify verify with public key\n"); 355 BIO_printf(bio_err, "-encrypt encrypt with public key\n"); 356 BIO_printf(bio_err, "-decrypt decrypt with private key\n"); 357 BIO_printf(bio_err, "-hexdump hex dump output\n"); 358 # ifndef OPENSSL_NO_ENGINE 359 BIO_printf(bio_err, 360 "-engine e use engine e, possibly a hardware device.\n"); 361 BIO_printf(bio_err, "-passin arg pass phrase source\n"); 362 # endif 363 364 } 365 366 #else /* !OPENSSL_NO_RSA */ 367 368 # if PEDANTIC 369 static void *dummy = &dummy; 370 # endif 371 372 #endif 373