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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 "buffer.h"
62#include "bn.h"
63#ifndef NO_RSA
64#include "rsa.h"
65#endif
66#ifndef NO_DH
67#include "dh.h"
68#endif
69#ifndef NO_DSA
70#include "dsa.h"
71#endif
72
73/* DHerr(DH_F_DHPARAMS_PRINT,ERR_R_MALLOC_FAILURE);
74 * DSAerr(DSA_F_DSAPARAMS_PRINT,ERR_R_MALLOC_FAILURE);
75 */
76
77#ifndef NOPROTO
78static int print(BIO *fp,char *str,BIGNUM *num,
79 unsigned char *buf,int off);
80#else
81static int print();
82#endif
83
84#ifndef NO_RSA
85#ifndef NO_FP_API
86int RSA_print_fp(fp,x,off)
87FILE *fp;
88RSA *x;
89int off;
90 {
91 BIO *b;
92 int ret;
93
94 if ((b=BIO_new(BIO_s_file())) == NULL)
95 {
96 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
97 return(0);
98 }
99 BIO_set_fp(b,fp,BIO_NOCLOSE);
100 ret=RSA_print(b,x,off);
101 BIO_free(b);
102 return(ret);
103 }
104#endif
105
106int RSA_print(bp,x,off)
107BIO *bp;
108RSA *x;
109int off;
110 {
111 char str[128],*s;
112 unsigned char *m=NULL;
113 int i,ret=0;
114
115 i=RSA_size(x);
116 m=(unsigned char *)Malloc((unsigned int)i+10);
117 if (m == NULL)
118 {
119 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
120 goto err;
121 }
122
123 if (off)
124 {
125 if (off > 128) off=128;
126 memset(str,' ',off);
127 }
128 if (x->d != NULL)
129 {
130 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
131 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
132 <= 0) goto err;
133 }
134
135 if (x->d == NULL)
136 sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
137 else
138 strcpy(str,"modulus:");
139 if (!print(bp,str,x->n,m,off)) goto err;
140 s=(x->d == NULL)?"Exponent:":"publicExponent:";
141 if (!print(bp,s,x->e,m,off)) goto err;
142 if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
143 if (!print(bp,"prime1:",x->p,m,off)) goto err;
144 if (!print(bp,"prime2:",x->q,m,off)) goto err;
145 if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
146 if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
147 if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
148 ret=1;
149err:
150 if (m != NULL) Free((char *)m);
151 return(ret);
152 }
153#endif /* NO_RSA */
154
155#ifndef NO_DSA
156#ifndef NO_FP_API
157int DSA_print_fp(fp,x,off)
158FILE *fp;
159DSA *x;
160int off;
161 {
162 BIO *b;
163 int ret;
164
165 if ((b=BIO_new(BIO_s_file())) == NULL)
166 {
167 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
168 return(0);
169 }
170 BIO_set_fp(b,fp,BIO_NOCLOSE);
171 ret=DSA_print(b,x,off);
172 BIO_free(b);
173 return(ret);
174 }
175#endif
176
177int DSA_print(bp,x,off)
178BIO *bp;
179DSA *x;
180int off;
181 {
182 char str[128];
183 unsigned char *m=NULL;
184 int i,ret=0;
185 BIGNUM *bn=NULL;
186
187 if (x->p != NULL)
188 bn=x->p;
189 else if (x->priv_key != NULL)
190 bn=x->priv_key;
191 else if (x->pub_key != NULL)
192 bn=x->pub_key;
193
194 /* larger than needed but what the hell :-) */
195 if (bn != NULL)
196 i=BN_num_bytes(bn)*2;
197 else
198 i=256;
199 m=(unsigned char *)Malloc((unsigned int)i+10);
200 if (m == NULL)
201 {
202 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
203 goto err;
204 }
205
206 if (off)
207 {
208 if (off > 128) off=128;
209 memset(str,' ',off);
210 }
211 if (x->priv_key != NULL)
212 {
213 if (off && (BIO_write(bp,str,off) <= 0)) goto err;
214 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
215 <= 0) goto err;
216 }
217
218 if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
219 goto err;
220 if ((x->pub_key != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
221 goto err;
222 if ((x->p != NULL) && !print(bp,"P: ",x->p,m,off)) goto err;
223 if ((x->q != NULL) && !print(bp,"Q: ",x->q,m,off)) goto err;
224 if ((x->g != NULL) && !print(bp,"G: ",x->g,m,off)) goto err;
225 ret=1;
226err:
227 if (m != NULL) Free((char *)m);
228 return(ret);
229 }
230#endif /* !NO_DSA */
231
232static int print(bp,number,num,buf,off)
233BIO *bp;
234char *number;
235BIGNUM *num;
236unsigned char *buf;
237int off;
238 {
239 int n,i;
240 char str[128],*neg;
241
242 if (num == NULL) return(1);
243 neg=(num->neg)?"-":"";
244 if (off)
245 {
246 if (off > 128) off=128;
247 memset(str,' ',off);
248 if (BIO_write(bp,str,off) <= 0) return(0);
249 }
250
251 if (BN_num_bytes(num) <= BN_BYTES)
252 {
253 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
254 (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
255 <= 0) return(0);
256 }
257 else
258 {
259 buf[0]=0;
260 if (BIO_printf(bp,"%s%s",number,
261 (neg[0] == '-')?" (Negative)":"") <= 0)
262 return(0);
263 n=BN_bn2bin(num,&buf[1]);
264
265 if (buf[1] & 0x80)
266 n++;
267 else buf++;
268
269 for (i=0; i<n; i++)
270 {
271 if ((i%15) == 0)
272 {
273 str[0]='\n';
274 memset(&(str[1]),' ',off+4);
275 if (BIO_write(bp,str,off+1+4) <= 0) return(0);
276 }
277 if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
278 <= 0) return(0);
279 }
280 if (BIO_write(bp,"\n",1) <= 0) return(0);
281 }
282 return(1);
283 }
284
285#ifndef NO_DH
286#ifndef NO_FP_API
287int DHparams_print_fp(fp,x)
288FILE *fp;
289DH *x;
290 {
291 BIO *b;
292 int ret;
293
294 if ((b=BIO_new(BIO_s_file())) == NULL)
295 {
296 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
297 return(0);
298 }
299 BIO_set_fp(b,fp,BIO_NOCLOSE);
300 ret=DHparams_print(b, x);
301 BIO_free(b);
302 return(ret);
303 }
304#endif
305
306int DHparams_print(bp,x)
307BIO *bp;
308DH *x;
309 {
310 unsigned char *m=NULL;
311 int reason=ERR_R_BUF_LIB,i,ret=0;
312
313 i=BN_num_bytes(x->p);
314 m=(unsigned char *)Malloc((unsigned int)i+10);
315 if (m == NULL)
316 {
317 reason=ERR_R_MALLOC_FAILURE;
318 goto err;
319 }
320
321 if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
322 BN_num_bits(x->p)) <= 0)
323 goto err;
324 if (!print(bp,"prime:",x->p,m,4)) goto err;
325 if (!print(bp,"generator:",x->g,m,4)) goto err;
326 if (x->length != 0)
327 {
328 if (BIO_printf(bp," recomented-private-length: %d bits\n",
329 (int)x->length) <= 0) goto err;
330 }
331 ret=1;
332 if (0)
333 {
334err:
335 DHerr(DH_F_DHPARAMS_PRINT,reason);
336 }
337 if (m != NULL) Free((char *)m);
338 return(ret);
339 }
340#endif
341
342#ifndef NO_DSA
343#ifndef NO_FP_API
344int DSAparams_print_fp(fp,x)
345FILE *fp;
346DSA *x;
347 {
348 BIO *b;
349 int ret;
350
351 if ((b=BIO_new(BIO_s_file())) == NULL)
352 {
353 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
354 return(0);
355 }
356 BIO_set_fp(b,fp,BIO_NOCLOSE);
357 ret=DSAparams_print(b, x);
358 BIO_free(b);
359 return(ret);
360 }
361#endif
362
363int DSAparams_print(bp,x)
364BIO *bp;
365DSA *x;
366 {
367 unsigned char *m=NULL;
368 int reason=ERR_R_BUF_LIB,i,ret=0;
369
370 i=BN_num_bytes(x->p);
371 m=(unsigned char *)Malloc((unsigned int)i+10);
372 if (m == NULL)
373 {
374 reason=ERR_R_MALLOC_FAILURE;
375 goto err;
376 }
377
378 if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
379 BN_num_bits(x->p)) <= 0)
380 goto err;
381 if (!print(bp,"p:",x->p,m,4)) goto err;
382 if (!print(bp,"q:",x->q,m,4)) goto err;
383 if (!print(bp,"g:",x->g,m,4)) goto err;
384 ret=1;
385err:
386 if (m != NULL) Free((char *)m);
387 DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
388 return(ret);
389 }
390
391#endif /* !NO_DSA */
392