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