t_pkey.c revision 68651
1/* crypto/asn1/t_pkey.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 <stdio.h> 60#include "cryptlib.h" 61#include <openssl/buffer.h> 62#include <openssl/bn.h> 63#ifndef NO_RSA 64#include <openssl/rsa.h> 65#endif 66#ifndef NO_DH 67#include <openssl/dh.h> 68#endif 69#ifndef NO_DSA 70#include <openssl/dsa.h> 71#endif 72 73static int print(BIO *fp,const char *str,BIGNUM *num, 74 unsigned char *buf,int off); 75#ifndef NO_RSA 76#ifndef NO_FP_API 77int RSA_print_fp(FILE *fp, RSA *x, int off) 78 { 79 BIO *b; 80 int ret; 81 82 if ((b=BIO_new(BIO_s_file())) == NULL) 83 { 84 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB); 85 return(0); 86 } 87 BIO_set_fp(b,fp,BIO_NOCLOSE); 88 ret=RSA_print(b,x,off); 89 BIO_free(b); 90 return(ret); 91 } 92#endif 93 94int RSA_print(BIO *bp, RSA *x, int off) 95 { 96 char str[128]; 97 const char *s; 98 unsigned char *m=NULL; 99 int i,ret=0; 100 101 i=RSA_size(x); 102 m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10); 103 if (m == NULL) 104 { 105 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE); 106 goto err; 107 } 108 109 if (off) 110 { 111 if (off > 128) off=128; 112 memset(str,' ',off); 113 } 114 if (x->d != NULL) 115 { 116 if (off && (BIO_write(bp,str,off) <= 0)) goto err; 117 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n)) 118 <= 0) goto err; 119 } 120 121 if (x->d == NULL) 122 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n)); 123 else 124 strcpy(str,"modulus:"); 125 if (!print(bp,str,x->n,m,off)) goto err; 126 s=(x->d == NULL)?"Exponent:":"publicExponent:"; 127 if (!print(bp,s,x->e,m,off)) goto err; 128 if (!print(bp,"privateExponent:",x->d,m,off)) goto err; 129 if (!print(bp,"prime1:",x->p,m,off)) goto err; 130 if (!print(bp,"prime2:",x->q,m,off)) goto err; 131 if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err; 132 if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err; 133 if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err; 134 ret=1; 135err: 136 if (m != NULL) OPENSSL_free(m); 137 return(ret); 138 } 139#endif /* NO_RSA */ 140 141#ifndef NO_DSA 142#ifndef NO_FP_API 143int DSA_print_fp(FILE *fp, DSA *x, int off) 144 { 145 BIO *b; 146 int ret; 147 148 if ((b=BIO_new(BIO_s_file())) == NULL) 149 { 150 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB); 151 return(0); 152 } 153 BIO_set_fp(b,fp,BIO_NOCLOSE); 154 ret=DSA_print(b,x,off); 155 BIO_free(b); 156 return(ret); 157 } 158#endif 159 160int DSA_print(BIO *bp, DSA *x, int off) 161 { 162 char str[128]; 163 unsigned char *m=NULL; 164 int i,ret=0; 165 BIGNUM *bn=NULL; 166 167 if (x->p != NULL) 168 bn=x->p; 169 else if (x->priv_key != NULL) 170 bn=x->priv_key; 171 else if (x->pub_key != NULL) 172 bn=x->pub_key; 173 174 /* larger than needed but what the hell :-) */ 175 if (bn != NULL) 176 i=BN_num_bytes(bn)*2; 177 else 178 i=256; 179 m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10); 180 if (m == NULL) 181 { 182 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE); 183 goto err; 184 } 185 186 if (off) 187 { 188 if (off > 128) off=128; 189 memset(str,' ',off); 190 } 191 if (x->priv_key != NULL) 192 { 193 if (off && (BIO_write(bp,str,off) <= 0)) goto err; 194 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p)) 195 <= 0) goto err; 196 } 197 198 if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off)) 199 goto err; 200 if ((x->pub_key != NULL) && !print(bp,"pub: ",x->pub_key,m,off)) 201 goto err; 202 if ((x->p != NULL) && !print(bp,"P: ",x->p,m,off)) goto err; 203 if ((x->q != NULL) && !print(bp,"Q: ",x->q,m,off)) goto err; 204 if ((x->g != NULL) && !print(bp,"G: ",x->g,m,off)) goto err; 205 ret=1; 206err: 207 if (m != NULL) OPENSSL_free(m); 208 return(ret); 209 } 210#endif /* !NO_DSA */ 211 212static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf, 213 int off) 214 { 215 int n,i; 216 char str[128]; 217 const char *neg; 218 219 if (num == NULL) return(1); 220 neg=(num->neg)?"-":""; 221 if (off) 222 { 223 if (off > 128) off=128; 224 memset(str,' ',off); 225 if (BIO_write(bp,str,off) <= 0) return(0); 226 } 227 228 if (BN_num_bytes(num) <= BN_BYTES) 229 { 230 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg, 231 (unsigned long)num->d[0],neg,(unsigned long)num->d[0]) 232 <= 0) return(0); 233 } 234 else 235 { 236 buf[0]=0; 237 if (BIO_printf(bp,"%s%s",number, 238 (neg[0] == '-')?" (Negative)":"") <= 0) 239 return(0); 240 n=BN_bn2bin(num,&buf[1]); 241 242 if (buf[1] & 0x80) 243 n++; 244 else buf++; 245 246 for (i=0; i<n; i++) 247 { 248 if ((i%15) == 0) 249 { 250 str[0]='\n'; 251 memset(&(str[1]),' ',off+4); 252 if (BIO_write(bp,str,off+1+4) <= 0) return(0); 253 } 254 if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":") 255 <= 0) return(0); 256 } 257 if (BIO_write(bp,"\n",1) <= 0) return(0); 258 } 259 return(1); 260 } 261 262#ifndef NO_DH 263#ifndef NO_FP_API 264int DHparams_print_fp(FILE *fp, DH *x) 265 { 266 BIO *b; 267 int ret; 268 269 if ((b=BIO_new(BIO_s_file())) == NULL) 270 { 271 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB); 272 return(0); 273 } 274 BIO_set_fp(b,fp,BIO_NOCLOSE); 275 ret=DHparams_print(b, x); 276 BIO_free(b); 277 return(ret); 278 } 279#endif 280 281int DHparams_print(BIO *bp, DH *x) 282 { 283 unsigned char *m=NULL; 284 int reason=ERR_R_BUF_LIB,i,ret=0; 285 286 i=BN_num_bytes(x->p); 287 m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10); 288 if (m == NULL) 289 { 290 reason=ERR_R_MALLOC_FAILURE; 291 goto err; 292 } 293 294 if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n", 295 BN_num_bits(x->p)) <= 0) 296 goto err; 297 if (!print(bp,"prime:",x->p,m,4)) goto err; 298 if (!print(bp,"generator:",x->g,m,4)) goto err; 299 if (x->length != 0) 300 { 301 if (BIO_printf(bp," recommended-private-length: %d bits\n", 302 (int)x->length) <= 0) goto err; 303 } 304 ret=1; 305 if (0) 306 { 307err: 308 DHerr(DH_F_DHPARAMS_PRINT,reason); 309 } 310 if (m != NULL) OPENSSL_free(m); 311 return(ret); 312 } 313#endif 314 315#ifndef NO_DSA 316#ifndef NO_FP_API 317int DSAparams_print_fp(FILE *fp, DSA *x) 318 { 319 BIO *b; 320 int ret; 321 322 if ((b=BIO_new(BIO_s_file())) == NULL) 323 { 324 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB); 325 return(0); 326 } 327 BIO_set_fp(b,fp,BIO_NOCLOSE); 328 ret=DSAparams_print(b, x); 329 BIO_free(b); 330 return(ret); 331 } 332#endif 333 334int DSAparams_print(BIO *bp, DSA *x) 335 { 336 unsigned char *m=NULL; 337 int reason=ERR_R_BUF_LIB,i,ret=0; 338 339 i=BN_num_bytes(x->p); 340 m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10); 341 if (m == NULL) 342 { 343 reason=ERR_R_MALLOC_FAILURE; 344 goto err; 345 } 346 347 if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n", 348 BN_num_bits(x->p)) <= 0) 349 goto err; 350 if (!print(bp,"p:",x->p,m,4)) goto err; 351 if (!print(bp,"q:",x->q,m,4)) goto err; 352 if (!print(bp,"g:",x->g,m,4)) goto err; 353 ret=1; 354err: 355 if (m != NULL) OPENSSL_free(m); 356 DSAerr(DSA_F_DSAPARAMS_PRINT,reason); 357 return(ret); 358 } 359 360#endif /* !NO_DSA */ 361 362