t_pkey.c revision 100936 
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 ret=0;
100	size_t buf_len=0, i;
101
102	if (x->n)
103		buf_len = (size_t)BN_num_bytes(x->n);
104	if (x->e)
105		if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
106			buf_len = i;
107	if (x->d)
108		if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
109			buf_len = i;
110	if (x->p)
111		if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
112			buf_len = i;
113	if (x->q)
114		if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
115			buf_len = i;
116	if (x->dmp1)
117		if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
118			buf_len = i;
119	if (x->dmq1)
120		if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
121			buf_len = i;
122	if (x->iqmp)
123		if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
124			buf_len = i;
125
126	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
127	if (m == NULL)
128		{
129		RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
130		goto err;
131		}
132
133	if (off)
134		{
135		if (off > 128) off=128;
136		memset(str,' ',off);
137		}
138	if (x->d != NULL)
139		{
140		if (off && (BIO_write(bp,str,off) <= 0)) goto err;
141		if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
142			<= 0) goto err;
143		}
144
145	if (x->d == NULL)
146		sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
147	else
148		strcpy(str,"modulus:");
149	if (!print(bp,str,x->n,m,off)) goto err;
150	s=(x->d == NULL)?"Exponent:":"publicExponent:";
151	if (!print(bp,s,x->e,m,off)) goto err;
152	if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
153	if (!print(bp,"prime1:",x->p,m,off)) goto err;
154	if (!print(bp,"prime2:",x->q,m,off)) goto err;
155	if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
156	if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
157	if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
158	ret=1;
159err:
160	if (m != NULL) OPENSSL_free(m);
161	return(ret);
162	}
163#endif /* NO_RSA */
164
165#ifndef NO_DSA
166#ifndef NO_FP_API
167int DSA_print_fp(FILE *fp, DSA *x, int off)
168	{
169	BIO *b;
170	int ret;
171
172	if ((b=BIO_new(BIO_s_file())) == NULL)
173		{
174		DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
175		return(0);
176		}
177	BIO_set_fp(b,fp,BIO_NOCLOSE);
178	ret=DSA_print(b,x,off);
179	BIO_free(b);
180	return(ret);
181	}
182#endif
183
184int DSA_print(BIO *bp, DSA *x, int off)
185	{
186	char str[128];
187	unsigned char *m=NULL;
188	int ret=0;
189	size_t buf_len=0,i;
190
191	if (x->p)
192		buf_len = (size_t)BN_num_bytes(x->p);
193	if (x->q)
194		if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
195			buf_len = i;
196	if (x->g)
197		if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
198			buf_len = i;
199	if (x->priv_key)
200		if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
201			buf_len = i;
202	if (x->pub_key)
203		if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
204			buf_len = i;
205
206	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
207	if (m == NULL)
208		{
209		DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
210		goto err;
211		}
212
213	if (off)
214		{
215		if (off > 128) off=128;
216		memset(str,' ',off);
217		}
218	if (x->priv_key != NULL)
219		{
220		if (off && (BIO_write(bp,str,off) <= 0)) goto err;
221		if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
222			<= 0) goto err;
223		}
224
225	if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
226		goto err;
227	if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
228		goto err;
229	if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
230	if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
231	if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
232	ret=1;
233err:
234	if (m != NULL) OPENSSL_free(m);
235	return(ret);
236	}
237#endif /* !NO_DSA */
238
239static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
240	     int off)
241	{
242	int n,i;
243	char str[128];
244	const char *neg;
245
246	if (num == NULL) return(1);
247	neg=(num->neg)?"-":"";
248	if (off)
249		{
250		if (off > 128) off=128;
251		memset(str,' ',off);
252		if (BIO_write(bp,str,off) <= 0) return(0);
253		}
254
255	if (BN_num_bytes(num) <= BN_BYTES)
256		{
257		if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
258			(unsigned long)num->d[0],neg,(unsigned long)num->d[0])
259			<= 0) return(0);
260		}
261	else
262		{
263		buf[0]=0;
264		if (BIO_printf(bp,"%s%s",number,
265			(neg[0] == '-')?" (Negative)":"") <= 0)
266			return(0);
267		n=BN_bn2bin(num,&buf[1]);
268
269		if (buf[1] & 0x80)
270			n++;
271		else	buf++;
272
273		for (i=0; i<n; i++)
274			{
275			if ((i%15) == 0)
276				{
277				str[0]='\n';
278				memset(&(str[1]),' ',off+4);
279				if (BIO_write(bp,str,off+1+4) <= 0) return(0);
280				}
281			if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
282				<= 0) return(0);
283			}
284		if (BIO_write(bp,"\n",1) <= 0) return(0);
285		}
286	return(1);
287	}
288
289#ifndef NO_DH
290#ifndef NO_FP_API
291int DHparams_print_fp(FILE *fp, DH *x)
292        {
293        BIO *b;
294        int ret;
295
296        if ((b=BIO_new(BIO_s_file())) == NULL)
297		{
298		DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
299                return(0);
300		}
301        BIO_set_fp(b,fp,BIO_NOCLOSE);
302        ret=DHparams_print(b, x);
303        BIO_free(b);
304        return(ret);
305        }
306#endif
307
308int DHparams_print(BIO *bp, DH *x)
309	{
310	unsigned char *m=NULL;
311	int reason=ERR_R_BUF_LIB,ret=0;
312	size_t buf_len=0, i;
313
314	if (x->p)
315		buf_len = (size_t)BN_num_bytes(x->p);
316	if (x->g)
317		if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
318			buf_len = i;
319	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
320	if (m == NULL)
321		{
322		reason=ERR_R_MALLOC_FAILURE;
323		goto err;
324		}
325
326	if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
327		BN_num_bits(x->p)) <= 0)
328		goto err;
329	if (!print(bp,"prime:",x->p,m,4)) goto err;
330	if (!print(bp,"generator:",x->g,m,4)) goto err;
331	if (x->length != 0)
332		{
333		if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
334			(int)x->length) <= 0) goto err;
335		}
336	ret=1;
337	if (0)
338		{
339err:
340		DHerr(DH_F_DHPARAMS_PRINT,reason);
341		}
342	if (m != NULL) OPENSSL_free(m);
343	return(ret);
344	}
345#endif
346
347#ifndef NO_DSA
348#ifndef NO_FP_API
349int DSAparams_print_fp(FILE *fp, DSA *x)
350        {
351        BIO *b;
352        int ret;
353
354        if ((b=BIO_new(BIO_s_file())) == NULL)
355		{
356		DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
357                return(0);
358		}
359        BIO_set_fp(b,fp,BIO_NOCLOSE);
360        ret=DSAparams_print(b, x);
361        BIO_free(b);
362        return(ret);
363        }
364#endif
365
366int DSAparams_print(BIO *bp, DSA *x)
367	{
368	unsigned char *m=NULL;
369	int reason=ERR_R_BUF_LIB,ret=0;
370	size_t buf_len=0, i;
371
372	if (x->p)
373		buf_len = (size_t)BN_num_bytes(x->p);
374	if (x->q)
375		if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
376			buf_len = i;
377	if (x->g)
378		if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
379			buf_len = i;
380	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
381	if (m == NULL)
382		{
383		reason=ERR_R_MALLOC_FAILURE;
384		goto err;
385		}
386
387	if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
388		BN_num_bits(x->p)) <= 0)
389		goto err;
390	if (!print(bp,"p:",x->p,m,4)) goto err;
391	if (!print(bp,"q:",x->q,m,4)) goto err;
392	if (!print(bp,"g:",x->g,m,4)) goto err;
393	ret=1;
394err:
395	if (m != NULL) OPENSSL_free(m);
396	DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
397	return(ret);
398	}
399
400#endif /* !NO_DSA */
401
402