1 /* rsautl.c */ 2 /* Written by Dr Stephen N Henson (steve (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh (at) 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 #endif 346
