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