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