rsa.c revision 109998
1316557Sngie/* apps/rsa.c */ 2346920Sngie/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3316557Sngie * All rights reserved. 4316557Sngie * 5316557Sngie * This package is an SSL implementation written 6316557Sngie * by Eric Young (eay@cryptsoft.com). 7316557Sngie * The implementation was written so as to conform with Netscapes SSL. 8316557Sngie * 9316557Sngie * This library is free for commercial and non-commercial use as long as 10316557Sngie * the following conditions are aheared to. The following conditions 11316557Sngie * apply to all code found in this distribution, be it the RC4, RSA, 12316557Sngie * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13316557Sngie * included with this distribution is covered by the same copyright terms 14316557Sngie * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15316557Sngie * 16316557Sngie * Copyright remains Eric Young's, and as such any Copyright notices in 17316557Sngie * the code are not to be removed. 18316557Sngie * If this package is used in a product, Eric Young should be given attribution 19316557Sngie * as the author of the parts of the library used. 20316557Sngie * This can be in the form of a textual message at program startup or 21316557Sngie * in documentation (online or textual) provided with the package. 22316557Sngie * 23316557Sngie * Redistribution and use in source and binary forms, with or without 24316557Sngie * modification, are permitted provided that the following conditions 25316557Sngie * are met: 26321117Sngie * 1. Redistributions of source code must retain the copyright 27321117Sngie * notice, this list of conditions and the following disclaimer. 28321117Sngie * 2. Redistributions in binary form must reproduce the above copyright 29316557Sngie * notice, this list of conditions and the following disclaimer in the 30316557Sngie * documentation and/or other materials provided with the distribution. 31316557Sngie * 3. All advertising materials mentioning features or use of this software 32316557Sngie * must display the following acknowledgement: 33316557Sngie * "This product includes cryptographic software written by 34316557Sngie * Eric Young (eay@cryptsoft.com)" 35316557Sngie * The word 'cryptographic' can be left out if the rouines from the library 36316557Sngie * being used are not cryptographic related :-). 37316557Sngie * 4. If you include any Windows specific code (or a derivative thereof) from 38316557Sngie * the apps directory (application code) you must include an acknowledgement: 39316557Sngie * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40316557Sngie * 41316557Sngie * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42316557Sngie * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43316557Sngie * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44316557Sngie * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45316557Sngie * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46316557Sngie * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47316557Sngie * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48316557Sngie * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49316557Sngie * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50316557Sngie * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51316557Sngie * SUCH DAMAGE. 52316557Sngie * 53316557Sngie * The licence and distribution terms for any publically available version or 54316557Sngie * derivative of this code cannot be changed. i.e. this code cannot simply be 55316557Sngie * copied and put under another distribution licence 56316557Sngie * [including the GNU Public Licence.] 57316557Sngie */ 58316557Sngie 59316557Sngie#ifndef OPENSSL_NO_RSA 60316557Sngie#include <stdio.h> 61316557Sngie#include <stdlib.h> 62316557Sngie#include <string.h> 63316557Sngie#include <time.h> 64316557Sngie#include "apps.h" 65316557Sngie#include <openssl/bio.h> 66316557Sngie#include <openssl/err.h> 67316557Sngie#include <openssl/rsa.h> 68316557Sngie#include <openssl/evp.h> 69316557Sngie#include <openssl/x509.h> 70316557Sngie#include <openssl/pem.h> 71316557Sngie 72316557Sngie#undef PROG 73316557Sngie#define PROG rsa_main 74316557Sngie 75316557Sngie/* -inform arg - input format - default PEM (one of DER, NET or PEM) 76316557Sngie * -outform arg - output format - default PEM 77316557Sngie * -in arg - input file - default stdin 78316557Sngie * -out arg - output file - default stdout 79316557Sngie * -des - encrypt output if PEM format with DES in cbc mode 80316557Sngie * -des3 - encrypt output if PEM format 81316557Sngie * -idea - encrypt output if PEM format 82316557Sngie * -aes128 - encrypt output if PEM format 83316557Sngie * -aes192 - encrypt output if PEM format 84316557Sngie * -aes256 - encrypt output if PEM format 85316557Sngie * -text - print a text version 86316557Sngie * -modulus - print the RSA key modulus 87316557Sngie * -check - verify key consistency 88316557Sngie * -pubin - Expect a public key in input file. 89316557Sngie * -pubout - Output a public key. 90316557Sngie */ 91316557Sngie 92316557Sngieint MAIN(int, char **); 93316557Sngie 94316557Sngieint MAIN(int argc, char **argv) 95316557Sngie { 96316557Sngie ENGINE *e = NULL; 97316557Sngie int ret=1; 98316557Sngie RSA *rsa=NULL; 99316557Sngie int i,badops=0, sgckey=0; 100316557Sngie const EVP_CIPHER *enc=NULL; 101316557Sngie BIO *out=NULL; 102316557Sngie int informat,outformat,text=0,check=0,noout=0; 103316557Sngie int pubin = 0, pubout = 0; 104316557Sngie char *infile,*outfile,*prog; 105316557Sngie char *passargin = NULL, *passargout = NULL; 106316557Sngie char *passin = NULL, *passout = NULL; 107316557Sngie char *engine=NULL; 108316557Sngie int modulus=0; 109316557Sngie 110316557Sngie apps_startup(); 111316557Sngie 112316557Sngie if (bio_err == NULL) 113316557Sngie if ((bio_err=BIO_new(BIO_s_file())) != NULL) 114316557Sngie BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 115316557Sngie 116316557Sngie if (!load_config(bio_err, NULL)) 117316557Sngie goto end; 118316557Sngie 119316557Sngie infile=NULL; 120316557Sngie outfile=NULL; 121316557Sngie informat=FORMAT_PEM; 122316557Sngie outformat=FORMAT_PEM; 123316557Sngie 124316557Sngie prog=argv[0]; 125316557Sngie argc--; 126316557Sngie argv++; 127316557Sngie while (argc >= 1) 128316557Sngie { 129316557Sngie if (strcmp(*argv,"-inform") == 0) 130316557Sngie { 131316557Sngie if (--argc < 1) goto bad; 132316557Sngie informat=str2fmt(*(++argv)); 133316557Sngie } 134316557Sngie else if (strcmp(*argv,"-outform") == 0) 135316557Sngie { 136316557Sngie if (--argc < 1) goto bad; 137316557Sngie outformat=str2fmt(*(++argv)); 138316557Sngie } 139316557Sngie else if (strcmp(*argv,"-in") == 0) 140316557Sngie { 141316557Sngie if (--argc < 1) goto bad; 142316557Sngie infile= *(++argv); 143316557Sngie } 144316557Sngie else if (strcmp(*argv,"-out") == 0) 145316557Sngie { 146316557Sngie if (--argc < 1) goto bad; 147316557Sngie outfile= *(++argv); 148316557Sngie } 149316557Sngie else if (strcmp(*argv,"-passin") == 0) 150316557Sngie { 151316557Sngie if (--argc < 1) goto bad; 152316557Sngie passargin= *(++argv); 153316557Sngie } 154316557Sngie else if (strcmp(*argv,"-passout") == 0) 155316557Sngie { 156316557Sngie if (--argc < 1) goto bad; 157316557Sngie passargout= *(++argv); 158316557Sngie } 159316557Sngie else if (strcmp(*argv,"-engine") == 0) 160316557Sngie { 161 if (--argc < 1) goto bad; 162 engine= *(++argv); 163 } 164 else if (strcmp(*argv,"-sgckey") == 0) 165 sgckey=1; 166 else if (strcmp(*argv,"-pubin") == 0) 167 pubin=1; 168 else if (strcmp(*argv,"-pubout") == 0) 169 pubout=1; 170 else if (strcmp(*argv,"-noout") == 0) 171 noout=1; 172 else if (strcmp(*argv,"-text") == 0) 173 text=1; 174 else if (strcmp(*argv,"-modulus") == 0) 175 modulus=1; 176 else if (strcmp(*argv,"-check") == 0) 177 check=1; 178 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 179 { 180 BIO_printf(bio_err,"unknown option %s\n",*argv); 181 badops=1; 182 break; 183 } 184 argc--; 185 argv++; 186 } 187 188 if (badops) 189 { 190bad: 191 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 192 BIO_printf(bio_err,"where options are\n"); 193 BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); 194 BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); 195 BIO_printf(bio_err," -in arg input file\n"); 196 BIO_printf(bio_err," -sgckey Use IIS SGC key format\n"); 197 BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 198 BIO_printf(bio_err," -out arg output file\n"); 199 BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 200 BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 201 BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 202#ifndef OPENSSL_NO_IDEA 203 BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 204#endif 205#ifndef OPENSSL_NO_AES 206 BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 207 BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 208#endif 209 BIO_printf(bio_err," -text print the key in text\n"); 210 BIO_printf(bio_err," -noout don't print key out\n"); 211 BIO_printf(bio_err," -modulus print the RSA key modulus\n"); 212 BIO_printf(bio_err," -check verify key consistency\n"); 213 BIO_printf(bio_err," -pubin expect a public key in input file\n"); 214 BIO_printf(bio_err," -pubout output a public key\n"); 215 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 216 goto end; 217 } 218 219 ERR_load_crypto_strings(); 220 221 e = setup_engine(bio_err, engine, 0); 222 223 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 224 BIO_printf(bio_err, "Error getting passwords\n"); 225 goto end; 226 } 227 228 if(check && pubin) { 229 BIO_printf(bio_err, "Only private keys can be checked\n"); 230 goto end; 231 } 232 233 out=BIO_new(BIO_s_file()); 234 235 { 236 EVP_PKEY *pkey; 237 238 if (pubin) 239 pkey = load_pubkey(bio_err, infile, 240 (informat == FORMAT_NETSCAPE && sgckey ? 241 FORMAT_IISSGC : informat), 1, 242 passin, e, "Public Key"); 243 else 244 pkey = load_key(bio_err, infile, 245 (informat == FORMAT_NETSCAPE && sgckey ? 246 FORMAT_IISSGC : informat), 1, 247 passin, e, "Private Key"); 248 249 if (pkey != NULL) 250 rsa = pkey == NULL ? NULL : EVP_PKEY_get1_RSA(pkey); 251 EVP_PKEY_free(pkey); 252 } 253 254 if (rsa == NULL) 255 { 256 ERR_print_errors(bio_err); 257 goto end; 258 } 259 260 if (outfile == NULL) 261 { 262 BIO_set_fp(out,stdout,BIO_NOCLOSE); 263#ifdef OPENSSL_SYS_VMS 264 { 265 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 266 out = BIO_push(tmpbio, out); 267 } 268#endif 269 } 270 else 271 { 272 if (BIO_write_filename(out,outfile) <= 0) 273 { 274 perror(outfile); 275 goto end; 276 } 277 } 278 279 if (text) 280 if (!RSA_print(out,rsa,0)) 281 { 282 perror(outfile); 283 ERR_print_errors(bio_err); 284 goto end; 285 } 286 287 if (modulus) 288 { 289 BIO_printf(out,"Modulus="); 290 BN_print(out,rsa->n); 291 BIO_printf(out,"\n"); 292 } 293 294 if (check) 295 { 296 int r = RSA_check_key(rsa); 297 298 if (r == 1) 299 BIO_printf(out,"RSA key ok\n"); 300 else if (r == 0) 301 { 302 long err; 303 304 while ((err = ERR_peek_error()) != 0 && 305 ERR_GET_LIB(err) == ERR_LIB_RSA && 306 ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY && 307 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) 308 { 309 BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err)); 310 ERR_get_error(); /* remove e from error stack */ 311 } 312 } 313 314 if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ 315 { 316 ERR_print_errors(bio_err); 317 goto end; 318 } 319 } 320 321 if (noout) 322 { 323 ret = 0; 324 goto end; 325 } 326 BIO_printf(bio_err,"writing RSA key\n"); 327 if (outformat == FORMAT_ASN1) { 328 if(pubout || pubin) i=i2d_RSA_PUBKEY_bio(out,rsa); 329 else i=i2d_RSAPrivateKey_bio(out,rsa); 330 } 331#ifndef OPENSSL_NO_RC4 332 else if (outformat == FORMAT_NETSCAPE) 333 { 334 unsigned char *p,*pp; 335 int size; 336 337 i=1; 338 size=i2d_RSA_NET(rsa,NULL,NULL, sgckey); 339 if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL) 340 { 341 BIO_printf(bio_err,"Memory allocation failure\n"); 342 goto end; 343 } 344 pp=p; 345 i2d_RSA_NET(rsa,&p,NULL, sgckey); 346 BIO_write(out,(char *)pp,size); 347 OPENSSL_free(pp); 348 } 349#endif 350 else if (outformat == FORMAT_PEM) { 351 if(pubout || pubin) 352 i=PEM_write_bio_RSA_PUBKEY(out,rsa); 353 else i=PEM_write_bio_RSAPrivateKey(out,rsa, 354 enc,NULL,0,NULL,passout); 355 } else { 356 BIO_printf(bio_err,"bad output format specified for outfile\n"); 357 goto end; 358 } 359 if (!i) 360 { 361 BIO_printf(bio_err,"unable to write key\n"); 362 ERR_print_errors(bio_err); 363 } 364 else 365 ret=0; 366end: 367 if(out != NULL) BIO_free_all(out); 368 if(rsa != NULL) RSA_free(rsa); 369 if(passin) OPENSSL_free(passin); 370 if(passout) OPENSSL_free(passout); 371 apps_shutdown(); 372 OPENSSL_EXIT(ret); 373 } 374#else /* !OPENSSL_NO_RSA */ 375 376# if PEDANTIC 377static void *dummy=&dummy; 378# endif 379 380#endif 381