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 #ifndef OPENSSL_NO_RSA 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <string.h> 63 #include <time.h> 64 #include "apps.h" 65 #include <openssl/bio.h> 66 #include <openssl/err.h> 67 #include <openssl/rsa.h> 68 #include <openssl/evp.h> 69 #include <openssl/x509.h> 70 #include <openssl/pem.h> 71 72 #undef PROG 73 #define PROG rsa_main 74 75 /* -inform arg - input format - default PEM (one of DER, NET or PEM) 76 * -outform arg - output format - default PEM 77 * -in arg - input file - default stdin 78 * -out arg - output file - default stdout 79 * -des - encrypt output if PEM format with DES in cbc mode 80 * -des3 - encrypt output if PEM format 81 * -idea - encrypt output if PEM format 82 * -aes128 - encrypt output if PEM format 83 * -aes192 - encrypt output if PEM format 84 * -aes256 - encrypt output if PEM format 85 * -text - print a text version 86 * -modulus - print the RSA key modulus 87 * -check - verify key consistency 88 * -pubin - Expect a public key in input file. 89 * -pubout - Output a public key. 90 */ 91 92 int MAIN(int, char **); 93 94 int MAIN(int argc, char **argv) 95 { 96 ENGINE *e = NULL; 97 int ret=1; 98 RSA *rsa=NULL; 99 int i,badops=0, sgckey=0; 100 const EVP_CIPHER *enc=NULL; 101 BIO *out=NULL; 102 int informat,outformat,text=0,check=0,noout=0; 103 int pubin = 0, pubout = 0; 104 char *infile,*outfile,*prog; 105 char *passargin = NULL, *passargout = NULL; 106 char *passin = NULL, *passout = NULL; 107 #ifndef OPENSSL_NO_ENGINE 108 char *engine=NULL; 109 #endif 110 int modulus=0; 111 112 apps_startup(); 113 114 if (bio_err == NULL) 115 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 116 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 117 118 if (!load_config(bio_err, NULL)) 119 goto end; 120 121 infile=NULL; 122 outfile=NULL; 123 informat=FORMAT_PEM; 124 outformat=FORMAT_PEM; 125 126 prog=argv[0]; 127 argc--; 128 argv++; 129 while (argc >= 1) 130 { 131 if (strcmp(*argv,"-inform") == 0) 132 { 133 if (--argc < 1) goto bad; 134 informat=str2fmt(*(++argv)); 135 } 136 else if (strcmp(*argv,"-outform") == 0) 137 { 138 if (--argc < 1) goto bad; 139 outformat=str2fmt(*(++argv)); 140 } 141 else if (strcmp(*argv,"-in") == 0) 142 { 143 if (--argc < 1) goto bad; 144 infile= *(++argv); 145 } 146 else if (strcmp(*argv,"-out") == 0) 147 { 148 if (--argc < 1) goto bad; 149 outfile= *(++argv); 150 } 151 else if (strcmp(*argv,"-passin") == 0) 152 { 153 if (--argc < 1) goto bad; 154 passargin= *(++argv); 155 } 156 else if (strcmp(*argv,"-passout") == 0) 157 { 158 if (--argc < 1) goto bad; 159 passargout= *(++argv); 160 } 161 #ifndef OPENSSL_NO_ENGINE 162 else if (strcmp(*argv,"-engine") == 0) 163 { 164 if (--argc < 1) goto bad; 165 engine= *(++argv); 166 } 167 #endif 168 else if (strcmp(*argv,"-sgckey") == 0) 169 sgckey=1; 170 else if (strcmp(*argv,"-pubin") == 0) 171 pubin=1; 172 else if (strcmp(*argv,"-pubout") == 0) 173 pubout=1; 174 else if (strcmp(*argv,"-noout") == 0) 175 noout=1; 176 else if (strcmp(*argv,"-text") == 0) 177 text=1; 178 else if (strcmp(*argv,"-modulus") == 0) 179 modulus=1; 180 else if (strcmp(*argv,"-check") == 0) 181 check=1; 182 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 183 { 184 BIO_printf(bio_err,"unknown option %s\n",*argv); 185 badops=1; 186 break; 187 } 188 argc--; 189 argv++; 190 } 191 192 if (badops) 193 { 194 bad: 195 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 196 BIO_printf(bio_err,"where options are\n"); 197 BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); 198 BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); 199 BIO_printf(bio_err," -in arg input file\n"); 200 BIO_printf(bio_err," -sgckey Use IIS SGC key format\n"); 201 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 202 BIO_printf(bio_err," -out arg output file\n"); 203 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 204 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 205 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 206 #ifndef OPENSSL_NO_IDEA 207 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 208 #endif 209 #ifndef OPENSSL_NO_AES 210 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 211 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 212 #endif 213 BIO_printf(bio_err," -text print the key in text\n"); 214 BIO_printf(bio_err," -noout don't print key out\n"); 215 BIO_printf(bio_err," -modulus print the RSA key modulus\n"); 216 BIO_printf(bio_err," -check verify key consistency\n"); 217 BIO_printf(bio_err," -pubin expect a public key in input file\n"); 218 BIO_printf(bio_err," -pubout output a public key\n"); 219 #ifndef OPENSSL_NO_ENGINE 220 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 221 #endif 222 goto end; 223 } 224 225 ERR_load_crypto_strings(); 226 227 #ifndef OPENSSL_NO_ENGINE 228 e = setup_engine(bio_err, engine, 0); 229 #endif 230 231 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 232 BIO_printf(bio_err, "Error getting passwords\n"); 233 goto end; 234 } 235 236 if(check && pubin) { 237 BIO_printf(bio_err, "Only private keys can be checked\n"); 238 goto end; 239 } 240 241 out=BIO_new(BIO_s_file()); 242 243 { 244 EVP_PKEY *pkey; 245 246 if (pubin) 247 pkey = load_pubkey(bio_err, infile, 248 (informat == FORMAT_NETSCAPE && sgckey ? 249 FORMAT_IISSGC : informat), 1, 250 passin, e, "Public Key"); 251 else 252 pkey = load_key(bio_err, infile, 253 (informat == FORMAT_NETSCAPE && sgckey ? 254 FORMAT_IISSGC : informat), 1, 255 passin, e, "Private Key"); 256 257 if (pkey != NULL) 258 rsa = pkey == NULL ? NULL : EVP_PKEY_get1_RSA(pkey); 259 EVP_PKEY_free(pkey); 260 } 261 262 if (rsa == NULL) 263 { 264 ERR_print_errors(bio_err); 265 goto end; 266 } 267 268 if (outfile == NULL) 269 { 270 BIO_set_fp(out,stdout,BIO_NOCLOSE); 271 #ifdef OPENSSL_SYS_VMS 272 { 273 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 274 out = BIO_push(tmpbio, out); 275 } 276 #endif 277 } 278 else 279 { 280 if (BIO_write_filename(out,outfile) <= 0) 281 { 282 perror(outfile); 283 goto end; 284 } 285 } 286 287 if (text) 288 if (!RSA_print(out,rsa,0)) 289 { 290 perror(outfile); 291 ERR_print_errors(bio_err); 292 goto end; 293 } 294 295 if (modulus) 296 { 297 BIO_printf(out,"Modulus="); 298 BN_print(out,rsa->n); 299 BIO_printf(out,"\n"); 300 } 301 302 if (check) 303 { 304 int r = RSA_check_key(rsa); 305 306 if (r == 1) 307 BIO_printf(out,"RSA key ok\n"); 308 else if (r == 0) 309 { 310 long err; 311 312 while ((err = ERR_peek_error()) != 0 && 313 ERR_GET_LIB(err) == ERR_LIB_RSA && 314 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY && 315 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) 316 { 317 BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err)); 318 ERR_get_error(); /* remove e from error stack */ 319 } 320 } 321 322 if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ 323 { 324 ERR_print_errors(bio_err); 325 goto end; 326 } 327 } 328 329 if (noout) 330 { 331 ret = 0; 332 goto end; 333 } 334 BIO_printf(bio_err,"writing RSA key\n"); 335 if (outformat == FORMAT_ASN1) { 336 if(pubout || pubin) i=i2d_RSA_PUBKEY_bio(out,rsa); 337 else i=i2d_RSAPrivateKey_bio(out,rsa); 338 } 339 #ifndef OPENSSL_NO_RC4 340 else if (outformat == FORMAT_NETSCAPE) 341 { 342 unsigned char *p,*pp; 343 int size; 344 345 i=1; 346 size=i2d_RSA_NET(rsa,NULL,NULL, sgckey); 347 if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL) 348 { 349 BIO_printf(bio_err,"Memory allocation failure\n"); 350 goto end; 351 } 352 pp=p; 353 i2d_RSA_NET(rsa,&p,NULL, sgckey); 354 BIO_write(out,(char *)pp,size); 355 OPENSSL_free(pp); 356 } 357 #endif 358 else if (outformat == FORMAT_PEM) { 359 if(pubout || pubin) 360 i=PEM_write_bio_RSA_PUBKEY(out,rsa); 361 else i=PEM_write_bio_RSAPrivateKey(out,rsa, 362 enc,NULL,0,NULL,passout); 363 } else { 364 BIO_printf(bio_err,"bad output format specified for outfile\n"); 365 goto end; 366 } 367 if (!i) 368 { 369 BIO_printf(bio_err,"unable to write key\n"); 370 ERR_print_errors(bio_err); 371 } 372 else 373 ret=0; 374 end: 375 if(out != NULL) BIO_free_all(out); 376 if(rsa != NULL) RSA_free(rsa); 377 if(passin) OPENSSL_free(passin); 378 if(passout) OPENSSL_free(passout); 379 apps_shutdown(); 380 OPENSSL_EXIT(ret); 381 } 382 #else /* !OPENSSL_NO_RSA */ 383 384 # if PEDANTIC 385 static void *dummy=&dummy; 386 # endif 387 388 #endif 389