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 * -aes128 - encrypt output if PEM format 85 * -aes192 - encrypt output if PEM format 86 * -aes256 - encrypt output if PEM format 87 * -camellia128 - encrypt output if PEM format 88 * -camellia192 - encrypt output if PEM format 89 * -camellia256 - encrypt output if PEM format 90 * -text - print a text version 91 * -modulus - print the RSA key modulus 92 * -check - verify key consistency 93 * -pubin - Expect a public key in input file. 94 * -pubout - Output a public key. 95 */ 96 97 int MAIN(int, char **); 98 99 int MAIN(int argc, char **argv) 100 { 101 ENGINE *e = NULL; 102 int ret=1; 103 RSA *rsa=NULL; 104 int i,badops=0, sgckey=0; 105 const EVP_CIPHER *enc=NULL; 106 BIO *out=NULL; 107 int informat,outformat,text=0,check=0,noout=0; 108 int pubin = 0, pubout = 0; 109 char *infile,*outfile,*prog; 110 char *passargin = NULL, *passargout = NULL; 111 char *passin = NULL, *passout = NULL; 112 #ifndef OPENSSL_NO_ENGINE 113 char *engine=NULL; 114 #endif 115 int modulus=0; 116 117 apps_startup(); 118 119 if (bio_err == NULL) 120 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 121 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 122 123 if (!load_config(bio_err, NULL)) 124 goto end; 125 126 infile=NULL; 127 outfile=NULL; 128 informat=FORMAT_PEM; 129 outformat=FORMAT_PEM; 130 131 prog=argv[0]; 132 argc--; 133 argv++; 134 while (argc >= 1) 135 { 136 if (strcmp(*argv,"-inform") == 0) 137 { 138 if (--argc < 1) goto bad; 139 informat=str2fmt(*(++argv)); 140 } 141 else if (strcmp(*argv,"-outform") == 0) 142 { 143 if (--argc < 1) goto bad; 144 outformat=str2fmt(*(++argv)); 145 } 146 else if (strcmp(*argv,"-in") == 0) 147 { 148 if (--argc < 1) goto bad; 149 infile= *(++argv); 150 } 151 else if (strcmp(*argv,"-out") == 0) 152 { 153 if (--argc < 1) goto bad; 154 outfile= *(++argv); 155 } 156 else if (strcmp(*argv,"-passin") == 0) 157 { 158 if (--argc < 1) goto bad; 159 passargin= *(++argv); 160 } 161 else if (strcmp(*argv,"-passout") == 0) 162 { 163 if (--argc < 1) goto bad; 164 passargout= *(++argv); 165 } 166 #ifndef OPENSSL_NO_ENGINE 167 else if (strcmp(*argv,"-engine") == 0) 168 { 169 if (--argc < 1) goto bad; 170 engine= *(++argv); 171 } 172 #endif 173 else if (strcmp(*argv,"-sgckey") == 0) 174 sgckey=1; 175 else if (strcmp(*argv,"-pubin") == 0) 176 pubin=1; 177 else if (strcmp(*argv,"-pubout") == 0) 178 pubout=1; 179 else if (strcmp(*argv,"-noout") == 0) 180 noout=1; 181 else if (strcmp(*argv,"-text") == 0) 182 text=1; 183 else if (strcmp(*argv,"-modulus") == 0) 184 modulus=1; 185 else if (strcmp(*argv,"-check") == 0) 186 check=1; 187 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 188 { 189 BIO_printf(bio_err,"unknown option %s\n",*argv); 190 badops=1; 191 break; 192 } 193 argc--; 194 argv++; 195 } 196 197 if (badops) 198 { 199 bad: 200 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 201 BIO_printf(bio_err,"where options are\n"); 202 BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); 203 BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); 204 BIO_printf(bio_err," -in arg input file\n"); 205 BIO_printf(bio_err," -sgckey Use IIS SGC key format\n"); 206 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 207 BIO_printf(bio_err," -out arg output file\n"); 208 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 209 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 210 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 211 #ifndef OPENSSL_NO_IDEA 212 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 213 #endif 214 #ifndef OPENSSL_NO_AES 215 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 216 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 217 #endif 218 #ifndef OPENSSL_NO_CAMELLIA 219 BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n"); 220 BIO_printf(bio_err," encrypt PEM output with cbc camellia\n"); 221 #endif 222 BIO_printf(bio_err," -text print the key in text\n"); 223 BIO_printf(bio_err," -noout don't print key out\n"); 224 BIO_printf(bio_err," -modulus print the RSA key modulus\n"); 225 BIO_printf(bio_err," -check verify key consistency\n"); 226 BIO_printf(bio_err," -pubin expect a public key in input file\n"); 227 BIO_printf(bio_err," -pubout output a public key\n"); 228 #ifndef OPENSSL_NO_ENGINE 229 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 230 #endif 231 goto end; 232 } 233 234 ERR_load_crypto_strings(); 235 236 #ifndef OPENSSL_NO_ENGINE 237 e = setup_engine(bio_err, engine, 0); 238 #endif 239 240 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 241 BIO_printf(bio_err, "Error getting passwords\n"); 242 goto end; 243 } 244 245 if(check && pubin) { 246 BIO_printf(bio_err, "Only private keys can be checked\n"); 247 goto end; 248 } 249 250 out=BIO_new(BIO_s_file()); 251 252 { 253 EVP_PKEY *pkey; 254 255 if (pubin) 256 pkey = load_pubkey(bio_err, infile, 257 (informat == FORMAT_NETSCAPE && sgckey ? 258 FORMAT_IISSGC : informat), 1, 259 passin, e, "Public Key"); 260 else 261 pkey = load_key(bio_err, infile, 262 (informat == FORMAT_NETSCAPE && sgckey ? 263 FORMAT_IISSGC : informat), 1, 264 passin, e, "Private Key"); 265 266 if (pkey != NULL) 267 rsa = pkey == NULL ? NULL : EVP_PKEY_get1_RSA(pkey); 268 EVP_PKEY_free(pkey); 269 } 270 271 if (rsa == NULL) 272 { 273 ERR_print_errors(bio_err); 274 goto end; 275 } 276 277 if (outfile == NULL) 278 { 279 BIO_set_fp(out,stdout,BIO_NOCLOSE); 280 #ifdef OPENSSL_SYS_VMS 281 { 282 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 283 out = BIO_push(tmpbio, out); 284 } 285 #endif 286 } 287 else 288 { 289 if (BIO_write_filename(out,outfile) <= 0) 290 { 291 perror(outfile); 292 goto end; 293 } 294 } 295 296 if (text) 297 if (!RSA_print(out,rsa,0)) 298 { 299 perror(outfile); 300 ERR_print_errors(bio_err); 301 goto end; 302 } 303 304 if (modulus) 305 { 306 BIO_printf(out,"Modulus="); 307 BN_print(out,rsa->n); 308 BIO_printf(out,"\n"); 309 } 310 311 if (check) 312 { 313 int r = RSA_check_key(rsa); 314 315 if (r == 1) 316 BIO_printf(out,"RSA key ok\n"); 317 else if (r == 0) 318 { 319 unsigned long err; 320 321 while ((err = ERR_peek_error()) != 0 && 322 ERR_GET_LIB(err) == ERR_LIB_RSA && 323 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY && 324 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) 325 { 326 BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err)); 327 ERR_get_error(); /* remove e from error stack */ 328 } 329 } 330 331 if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ 332 { 333 ERR_print_errors(bio_err); 334 goto end; 335 } 336 } 337 338 if (noout) 339 { 340 ret = 0; 341 goto end; 342 } 343 BIO_printf(bio_err,"writing RSA key\n"); 344 if (outformat == FORMAT_ASN1) { 345 if(pubout || pubin) i=i2d_RSA_PUBKEY_bio(out,rsa); 346 else i=i2d_RSAPrivateKey_bio(out,rsa); 347 } 348 #ifndef OPENSSL_NO_RC4 349 else if (outformat == FORMAT_NETSCAPE) 350 { 351 unsigned char *p,*pp; 352 int size; 353 354 i=1; 355 size=i2d_RSA_NET(rsa,NULL,NULL, sgckey); 356 if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL) 357 { 358 BIO_printf(bio_err,"Memory allocation failure\n"); 359 goto end; 360 } 361 pp=p; 362 i2d_RSA_NET(rsa,&p,NULL, sgckey); 363 BIO_write(out,(char *)pp,size); 364 OPENSSL_free(pp); 365 } 366 #endif 367 else if (outformat == FORMAT_PEM) { 368 if(pubout || pubin) 369 i=PEM_write_bio_RSA_PUBKEY(out,rsa); 370 else i=PEM_write_bio_RSAPrivateKey(out,rsa, 371 enc,NULL,0,NULL,passout); 372 } else { 373 BIO_printf(bio_err,"bad output format specified for outfile\n"); 374 goto end; 375 } 376 if (!i) 377 { 378 BIO_printf(bio_err,"unable to write key\n"); 379 ERR_print_errors(bio_err); 380 } 381 else 382 ret=0; 383 end: 384 if(out != NULL) BIO_free_all(out); 385 if(rsa != NULL) RSA_free(rsa); 386 if(passin) OPENSSL_free(passin); 387 if(passout) OPENSSL_free(passout); 388 apps_shutdown(); 389 OPENSSL_EXIT(ret); 390 } 391 #else /* !OPENSSL_NO_RSA */ 392 393 # if PEDANTIC 394 static void *dummy=&dummy; 395 # endif 396 397 #endif 398