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 #ifndef OPENSSL_NO_RSA 60 61 #include "apps.h" 62 #include <string.h> 63 #include <openssl/err.h> 64 #include <openssl/pem.h> 65 66 #define RSA_SIGN 1 67 #define RSA_VERIFY 2 68 #define RSA_ENCRYPT 3 69 #define RSA_DECRYPT 4 70 71 #define KEY_PRIVKEY 1 72 #define KEY_PUBKEY 2 73 #define KEY_CERT 3 74 75 static void usage(void); 76 77 #undef PROG 78 79 #define PROG rsautl_main 80 81 int MAIN(int argc, char **); 82 83 int MAIN(int argc, char **argv) 84 { 85 ENGINE *e = NULL; 86 BIO *in = NULL, *out = NULL; 87 char *infile = NULL, *outfile = NULL; 88 #ifndef OPENSSL_NO_ENGINE 89 char *engine = NULL; 90 #endif 91 char *keyfile = NULL; 92 char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY; 93 int keyform = FORMAT_PEM; 94 char need_priv = 0, badarg = 0, rev = 0; 95 char hexdump = 0, asn1parse = 0; 96 X509 *x; 97 EVP_PKEY *pkey = NULL; 98 RSA *rsa = NULL; 99 unsigned char *rsa_in = NULL, *rsa_out = NULL, pad; 100 char *passargin = NULL, *passin = NULL; 101 int rsa_inlen, rsa_outlen = 0; 102 int keysize; 103 104 int ret = 1; 105 106 argc--; 107 argv++; 108 109 if(!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 110 111 if (!load_config(bio_err, NULL)) 112 goto end; 113 ERR_load_crypto_strings(); 114 OpenSSL_add_all_algorithms(); 115 pad = RSA_PKCS1_PADDING; 116 117 while(argc >= 1) 118 { 119 if (!strcmp(*argv,"-in")) { 120 if (--argc < 1) badarg = 1; 121 infile= *(++argv); 122 } else if (!strcmp(*argv,"-out")) { 123 if (--argc < 1) badarg = 1; 124 outfile= *(++argv); 125 } else if(!strcmp(*argv, "-inkey")) { 126 if (--argc < 1) badarg = 1; 127 keyfile = *(++argv); 128 } else if (!strcmp(*argv,"-passin")) { 129 if (--argc < 1) badarg = 1; 130 passargin= *(++argv); 131 } else if (strcmp(*argv,"-keyform") == 0) { 132 if (--argc < 1) badarg = 1; 133 keyform=str2fmt(*(++argv)); 134 #ifndef OPENSSL_NO_ENGINE 135 } else if(!strcmp(*argv, "-engine")) { 136 if (--argc < 1) badarg = 1; 137 engine = *(++argv); 138 #endif 139 } else if(!strcmp(*argv, "-pubin")) { 140 key_type = KEY_PUBKEY; 141 } else if(!strcmp(*argv, "-certin")) { 142 key_type = KEY_CERT; 143 } 144 else if(!strcmp(*argv, "-asn1parse")) asn1parse = 1; 145 else if(!strcmp(*argv, "-hexdump")) hexdump = 1; 146 else if(!strcmp(*argv, "-raw")) pad = RSA_NO_PADDING; 147 else if(!strcmp(*argv, "-oaep")) pad = RSA_PKCS1_OAEP_PADDING; 148 else if(!strcmp(*argv, "-ssl")) pad = RSA_SSLV23_PADDING; 149 else if(!strcmp(*argv, "-pkcs")) pad = RSA_PKCS1_PADDING; 150 else if(!strcmp(*argv, "-sign")) { 151 rsa_mode = RSA_SIGN; 152 need_priv = 1; 153 } else if(!strcmp(*argv, "-verify")) rsa_mode = RSA_VERIFY; 154 else if(!strcmp(*argv, "-rev")) rev = 1; 155 else if(!strcmp(*argv, "-encrypt")) rsa_mode = RSA_ENCRYPT; 156 else if(!strcmp(*argv, "-decrypt")) { 157 rsa_mode = RSA_DECRYPT; 158 need_priv = 1; 159 } else badarg = 1; 160 if(badarg) { 161 usage(); 162 goto end; 163 } 164 argc--; 165 argv++; 166 } 167 168 if(need_priv && (key_type != KEY_PRIVKEY)) { 169 BIO_printf(bio_err, "A private key is needed for this operation\n"); 170 goto end; 171 } 172 173 #ifndef OPENSSL_NO_ENGINE 174 e = setup_engine(bio_err, engine, 0); 175 #endif 176 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { 177 BIO_printf(bio_err, "Error getting password\n"); 178 goto end; 179 } 180 181 /* FIXME: seed PRNG only if needed */ 182 app_RAND_load_file(NULL, bio_err, 0); 183 184 switch(key_type) { 185 case KEY_PRIVKEY: 186 pkey = load_key(bio_err, keyfile, keyform, 0, 187 passin, e, "Private Key"); 188 break; 189 190 case KEY_PUBKEY: 191 pkey = load_pubkey(bio_err, keyfile, keyform, 0, 192 NULL, e, "Public Key"); 193 break; 194 195 case KEY_CERT: 196 x = load_cert(bio_err, keyfile, keyform, 197 NULL, e, "Certificate"); 198 if(x) { 199 pkey = X509_get_pubkey(x); 200 X509_free(x); 201 } 202 break; 203 } 204 205 if(!pkey) { 206 return 1; 207 } 208 209 rsa = EVP_PKEY_get1_RSA(pkey); 210 EVP_PKEY_free(pkey); 211 212 if(!rsa) { 213 BIO_printf(bio_err, "Error getting RSA key\n"); 214 ERR_print_errors(bio_err); 215 goto end; 216 } 217 218 219 if(infile) { 220 if(!(in = BIO_new_file(infile, "rb"))) { 221 BIO_printf(bio_err, "Error Reading Input File\n"); 222 ERR_print_errors(bio_err); 223 goto end; 224 } 225 } else in = BIO_new_fp(stdin, BIO_NOCLOSE); 226 227 if(outfile) { 228 if(!(out = BIO_new_file(outfile, "wb"))) { 229 BIO_printf(bio_err, "Error Reading Output File\n"); 230 ERR_print_errors(bio_err); 231 goto end; 232 } 233 } else { 234 out = BIO_new_fp(stdout, BIO_NOCLOSE); 235 #ifdef OPENSSL_SYS_VMS 236 { 237 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 238 out = BIO_push(tmpbio, out); 239 } 240 #endif 241 } 242 243 keysize = RSA_size(rsa); 244 245 rsa_in = OPENSSL_malloc(keysize * 2); 246 rsa_out = OPENSSL_malloc(keysize); 247 248 /* Read the input data */ 249 rsa_inlen = BIO_read(in, rsa_in, keysize * 2); 250 if(rsa_inlen <= 0) { 251 BIO_printf(bio_err, "Error reading input Data\n"); 252 exit(1); 253 } 254 if(rev) { 255 int i; 256 unsigned char ctmp; 257 for(i = 0; i < rsa_inlen/2; i++) { 258 ctmp = rsa_in[i]; 259 rsa_in[i] = rsa_in[rsa_inlen - 1 - i]; 260 rsa_in[rsa_inlen - 1 - i] = ctmp; 261 } 262 } 263 switch(rsa_mode) { 264 265 case RSA_VERIFY: 266 rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 267 break; 268 269 case RSA_SIGN: 270 rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 271 break; 272 273 case RSA_ENCRYPT: 274 rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 275 break; 276 277 case RSA_DECRYPT: 278 rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); 279 break; 280 281 } 282 283 if(rsa_outlen <= 0) { 284 BIO_printf(bio_err, "RSA operation error\n"); 285 ERR_print_errors(bio_err); 286 goto end; 287 } 288 ret = 0; 289 if(asn1parse) { 290 if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) { 291 ERR_print_errors(bio_err); 292 } 293 } else if(hexdump) BIO_dump(out, (char *)rsa_out, rsa_outlen); 294 else BIO_write(out, rsa_out, rsa_outlen); 295 end: 296 RSA_free(rsa); 297 BIO_free(in); 298 BIO_free_all(out); 299 if(rsa_in) OPENSSL_free(rsa_in); 300 if(rsa_out) OPENSSL_free(rsa_out); 301 if(passin) OPENSSL_free(passin); 302 return ret; 303 } 304 305 static void usage() 306 { 307 BIO_printf(bio_err, "Usage: rsautl [options]\n"); 308 BIO_printf(bio_err, "-in file input file\n"); 309 BIO_printf(bio_err, "-out file output file\n"); 310 BIO_printf(bio_err, "-inkey file input key\n"); 311 BIO_printf(bio_err, "-keyform arg private key format - default PEM\n"); 312 BIO_printf(bio_err, "-pubin input is an RSA public\n"); 313 BIO_printf(bio_err, "-certin input is a certificate carrying an RSA public key\n"); 314 BIO_printf(bio_err, "-ssl use SSL v2 padding\n"); 315 BIO_printf(bio_err, "-raw use no padding\n"); 316 BIO_printf(bio_err, "-pkcs use PKCS#1 v1.5 padding (default)\n"); 317 BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n"); 318 BIO_printf(bio_err, "-sign sign with private key\n"); 319 BIO_printf(bio_err, "-verify verify with public key\n"); 320 BIO_printf(bio_err, "-encrypt encrypt with public key\n"); 321 BIO_printf(bio_err, "-decrypt decrypt with private key\n"); 322 BIO_printf(bio_err, "-hexdump hex dump output\n"); 323 #ifndef OPENSSL_NO_ENGINE 324 BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n"); 325 BIO_printf (bio_err, "-passin arg pass phrase source\n"); 326 #endif 327 328 } 329 330 #endif 331