1 /* apps/rsa.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <openssl/opensslconf.h> 60 #ifndef OPENSSL_NO_RSA 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <time.h> 65 #include "apps.h" 66 #include <openssl/bio.h> 67 #include <openssl/err.h> 68 #include <openssl/rsa.h> 69 #include <openssl/evp.h> 70 #include <openssl/x509.h> 71 #include <openssl/pem.h> 72 #include <openssl/bn.h> 73 74 #undef PROG 75 #define PROG rsa_main 76 77 /* -inform arg - input format - default PEM (one of DER, NET or PEM) 78 * -outform arg - output format - default PEM 79 * -in arg - input file - default stdin 80 * -out arg - output file - default stdout 81 * -des - encrypt output if PEM format with DES in cbc mode 82 * -des3 - encrypt output if PEM format 83 * -idea - encrypt output if PEM format 84 * -seed - encrypt output if PEM format 85 * -aes128 - encrypt output if PEM format 86 * -aes192 - encrypt output if PEM format 87 * -aes256 - encrypt output if PEM format 88 * -camellia128 - encrypt output if PEM format 89 * -camellia192 - encrypt output if PEM format 90 * -camellia256 - encrypt output if PEM format 91 * -text - print a text version 92 * -modulus - print the RSA key modulus 93 * -check - verify key consistency 94 * -pubin - Expect a public key in input file. 95 * -pubout - Output a public key. 96 */ 97 98 int MAIN(int, char **); 99 100 int MAIN(int argc, char **argv) 101 { 102 ENGINE *e = NULL; 103 int ret=1; 104 RSA *rsa=NULL; 105 int i,badops=0, sgckey=0; 106 const EVP_CIPHER *enc=NULL; 107 BIO *out=NULL; 108 int informat,outformat,text=0,check=0,noout=0; 109 int pubin = 0, pubout = 0; 110 char *infile,*outfile,*prog; 111 char *passargin = NULL, *passargout = NULL; 112 char *passin = NULL, *passout = NULL; 113 #ifndef OPENSSL_NO_ENGINE 114 char *engine=NULL; 115 #endif 116 int modulus=0; 117 118 apps_startup(); 119 120 if (bio_err == NULL) 121 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 122 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 123 124 if (!load_config(bio_err, NULL)) 125 goto end; 126 127 infile=NULL; 128 outfile=NULL; 129 informat=FORMAT_PEM; 130 outformat=FORMAT_PEM; 131 132 prog=argv[0]; 133 argc--; 134 argv++; 135 while (argc >= 1) 136 { 137 if (strcmp(*argv,"-inform") == 0) 138 { 139 if (--argc < 1) goto bad; 140 informat=str2fmt(*(++argv)); 141 } 142 else if (strcmp(*argv,"-outform") == 0) 143 { 144 if (--argc < 1) goto bad; 145 outformat=str2fmt(*(++argv)); 146 } 147 else if (strcmp(*argv,"-in") == 0) 148 { 149 if (--argc < 1) goto bad; 150 infile= *(++argv); 151 } 152 else if (strcmp(*argv,"-out") == 0) 153 { 154 if (--argc < 1) goto bad; 155 outfile= *(++argv); 156 } 157 else if (strcmp(*argv,"-passin") == 0) 158 { 159 if (--argc < 1) goto bad; 160 passargin= *(++argv); 161 } 162 else if (strcmp(*argv,"-passout") == 0) 163 { 164 if (--argc < 1) goto bad; 165 passargout= *(++argv); 166 } 167 #ifndef OPENSSL_NO_ENGINE 168 else if (strcmp(*argv,"-engine") == 0) 169 { 170 if (--argc < 1) goto bad; 171 engine= *(++argv); 172 } 173 #endif 174 else if (strcmp(*argv,"-sgckey") == 0) 175 sgckey=1; 176 else if (strcmp(*argv,"-pubin") == 0) 177 pubin=1; 178 else if (strcmp(*argv,"-pubout") == 0) 179 pubout=1; 180 else if (strcmp(*argv,"-noout") == 0) 181 noout=1; 182 else if (strcmp(*argv,"-text") == 0) 183 text=1; 184 else if (strcmp(*argv,"-modulus") == 0) 185 modulus=1; 186 else if (strcmp(*argv,"-check") == 0) 187 check=1; 188 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 189 { 190 BIO_printf(bio_err,"unknown option %s\n",*argv); 191 badops=1; 192 break; 193 } 194 argc--; 195 argv++; 196 } 197 198 if (badops) 199 { 200 bad: 201 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 202 BIO_printf(bio_err,"where options are\n"); 203 BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); 204 BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); 205 BIO_printf(bio_err," -in arg input file\n"); 206 BIO_printf(bio_err," -sgckey Use IIS SGC key format\n"); 207 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 208 BIO_printf(bio_err," -out arg output file\n"); 209 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 210 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 211 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 212 #ifndef OPENSSL_NO_IDEA 213 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 214 #endif 215 #ifndef OPENSSL_NO_SEED 216 BIO_printf(bio_err," -seed encrypt PEM output with cbc seed\n"); 217 #endif 218 #ifndef OPENSSL_NO_AES 219 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 220 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 221 #endif 222 #ifndef OPENSSL_NO_CAMELLIA 223 BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n"); 224 BIO_printf(bio_err," encrypt PEM output with cbc camellia\n"); 225 #endif 226 BIO_printf(bio_err," -text print the key in text\n"); 227 BIO_printf(bio_err," -noout don't print key out\n"); 228 BIO_printf(bio_err," -modulus print the RSA key modulus\n"); 229 BIO_printf(bio_err," -check verify key consistency\n"); 230 BIO_printf(bio_err," -pubin expect a public key in input file\n"); 231 BIO_printf(bio_err," -pubout output a public key\n"); 232 #ifndef OPENSSL_NO_ENGINE 233 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 234 #endif 235 goto end; 236 } 237 238 ERR_load_crypto_strings(); 239 240 #ifndef OPENSSL_NO_ENGINE 241 e = setup_engine(bio_err, engine, 0); 242 #endif 243 244 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 245 BIO_printf(bio_err, "Error getting passwords\n"); 246 goto end; 247 } 248 249 if(check && pubin) { 250 BIO_printf(bio_err, "Only private keys can be checked\n"); 251 goto end; 252 } 253 254 out=BIO_new(BIO_s_file()); 255 256 { 257 EVP_PKEY *pkey; 258 259 if (pubin) 260 pkey = load_pubkey(bio_err, infile, 261 (informat == FORMAT_NETSCAPE && sgckey ? 262 FORMAT_IISSGC : informat), 1, 263 passin, e, "Public Key"); 264 else 265 pkey = load_key(bio_err, infile, 266 (informat == FORMAT_NETSCAPE && sgckey ? 267 FORMAT_IISSGC : informat), 1, 268 passin, e, "Private Key"); 269 270 if (pkey != NULL) 271 rsa = pkey == NULL ? NULL : EVP_PKEY_get1_RSA(pkey); 272 EVP_PKEY_free(pkey); 273 } 274 275 if (rsa == NULL) 276 { 277 ERR_print_errors(bio_err); 278 goto end; 279 } 280 281 if (outfile == NULL) 282 { 283 BIO_set_fp(out,stdout,BIO_NOCLOSE); 284 #ifdef OPENSSL_SYS_VMS 285 { 286 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 287 out = BIO_push(tmpbio, out); 288 } 289 #endif 290 } 291 else 292 { 293 if (BIO_write_filename(out,outfile) <= 0) 294 { 295 perror(outfile); 296 goto end; 297 } 298 } 299 300 if (text) 301 if (!RSA_print(out,rsa,0)) 302 { 303 perror(outfile); 304 ERR_print_errors(bio_err); 305 goto end; 306 } 307 308 if (modulus) 309 { 310 BIO_printf(out,"Modulus="); 311 BN_print(out,rsa->n); 312 BIO_printf(out,"\n"); 313 } 314 315 if (check) 316 { 317 int r = RSA_check_key(rsa); 318 319 if (r == 1) 320 BIO_printf(out,"RSA key ok\n"); 321 else if (r == 0) 322 { 323 unsigned long err; 324 325 while ((err = ERR_peek_error()) != 0 && 326 ERR_GET_LIB(err) == ERR_LIB_RSA && 327 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY && 328 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) 329 { 330 BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err)); 331 ERR_get_error(); /* remove e from error stack */ 332 } 333 } 334 335 if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ 336 { 337 ERR_print_errors(bio_err); 338 goto end; 339 } 340 } 341 342 if (noout) 343 { 344 ret = 0; 345 goto end; 346 } 347 BIO_printf(bio_err,"writing RSA key\n"); 348 if (outformat == FORMAT_ASN1) { 349 if(pubout || pubin) i=i2d_RSA_PUBKEY_bio(out,rsa); 350 else i=i2d_RSAPrivateKey_bio(out,rsa); 351 } 352 #ifndef OPENSSL_NO_RC4 353 else if (outformat == FORMAT_NETSCAPE) 354 { 355 unsigned char *p,*pp; 356 int size; 357 358 i=1; 359 size=i2d_RSA_NET(rsa,NULL,NULL, sgckey); 360 if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL) 361 { 362 BIO_printf(bio_err,"Memory allocation failure\n"); 363 goto end; 364 } 365 pp=p; 366 i2d_RSA_NET(rsa,&p,NULL, sgckey); 367 BIO_write(out,(char *)pp,size); 368 OPENSSL_free(pp); 369 } 370 #endif 371 else if (outformat == FORMAT_PEM) { 372 if(pubout || pubin) 373 i=PEM_write_bio_RSA_PUBKEY(out,rsa); 374 else i=PEM_write_bio_RSAPrivateKey(out,rsa, 375 enc,NULL,0,NULL,passout); 376 } else { 377 BIO_printf(bio_err,"bad output format specified for outfile\n"); 378 goto end; 379 } 380 if (!i) 381 { 382 BIO_printf(bio_err,"unable to write key\n"); 383 ERR_print_errors(bio_err); 384 } 385 else 386 ret=0; 387 end: 388 if(out != NULL) BIO_free_all(out); 389 if(rsa != NULL) RSA_free(rsa); 390 if(passin) OPENSSL_free(passin); 391 if(passout) OPENSSL_free(passout); 392 apps_shutdown(); 393 OPENSSL_EXIT(ret); 394 } 395 #else /* !OPENSSL_NO_RSA */ 396 397 # if PEDANTIC 398 static void *dummy=&dummy; 399 # endif 400 401 #endif 402