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 OPENSSL_NO_RSA
64#include <openssl/rsa.h>
65#endif
66#ifndef OPENSSL_NO_DH
67#include <openssl/dh.h>
68#endif
69#ifndef OPENSSL_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 OPENSSL_NO_RSA
76#ifndef OPENSSL_NO_FP_API
77int RSA_print_fp(FILE *fp, const 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, const 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 (x->d != NULL)
134		{
135		if(!BIO_indent(bp,off,128))
136		   goto err;
137		if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
138			<= 0) goto err;
139		}
140
141	if (x->d == NULL)
142		BIO_snprintf(str,sizeof str,"Modulus (%d bit):",BN_num_bits(x->n));
143	else
144		BUF_strlcpy(str,"modulus:",sizeof str);
145	if (!print(bp,str,x->n,m,off)) goto err;
146	s=(x->d == NULL)?"Exponent:":"publicExponent:";
147	if (!print(bp,s,x->e,m,off)) goto err;
148	if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
149	if (!print(bp,"prime1:",x->p,m,off)) goto err;
150	if (!print(bp,"prime2:",x->q,m,off)) goto err;
151	if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
152	if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
153	if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
154	ret=1;
155err:
156	if (m != NULL) OPENSSL_free(m);
157	return(ret);
158	}
159#endif /* OPENSSL_NO_RSA */
160
161#ifndef OPENSSL_NO_DSA
162#ifndef OPENSSL_NO_FP_API
163int DSA_print_fp(FILE *fp, const DSA *x, int off)
164	{
165	BIO *b;
166	int ret;
167
168	if ((b=BIO_new(BIO_s_file())) == NULL)
169		{
170		DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
171		return(0);
172		}
173	BIO_set_fp(b,fp,BIO_NOCLOSE);
174	ret=DSA_print(b,x,off);
175	BIO_free(b);
176	return(ret);
177	}
178#endif
179
180int DSA_print(BIO *bp, const DSA *x, int off)
181	{
182	unsigned char *m=NULL;
183	int ret=0;
184	size_t buf_len=0,i;
185
186	if (x->p)
187		buf_len = (size_t)BN_num_bytes(x->p);
188	if (x->q)
189		if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
190			buf_len = i;
191	if (x->g)
192		if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
193			buf_len = i;
194	if (x->priv_key)
195		if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
196			buf_len = i;
197	if (x->pub_key)
198		if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
199			buf_len = i;
200
201	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
202	if (m == NULL)
203		{
204		DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
205		goto err;
206		}
207
208	if (x->priv_key != NULL)
209		{
210		if(!BIO_indent(bp,off,128))
211		   goto err;
212		if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
213			<= 0) goto err;
214		}
215
216	if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
217		goto err;
218	if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
219		goto err;
220	if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
221	if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
222	if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
223	ret=1;
224err:
225	if (m != NULL) OPENSSL_free(m);
226	return(ret);
227	}
228#endif /* !OPENSSL_NO_DSA */
229
230static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
231	     int off)
232	{
233	int n,i;
234	const char *neg;
235
236	if (num == NULL) return(1);
237	neg=(num->neg)?"-":"";
238	if(!BIO_indent(bp,off,128))
239		return 0;
240
241	if (BN_num_bytes(num) <= BN_BYTES)
242		{
243		if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
244			(unsigned long)num->d[0],neg,(unsigned long)num->d[0])
245			<= 0) return(0);
246		}
247	else
248		{
249		buf[0]=0;
250		if (BIO_printf(bp,"%s%s",number,
251			(neg[0] == '-')?" (Negative)":"") <= 0)
252			return(0);
253		n=BN_bn2bin(num,&buf[1]);
254
255		if (buf[1] & 0x80)
256			n++;
257		else	buf++;
258
259		for (i=0; i<n; i++)
260			{
261			if ((i%15) == 0)
262				{
263				if(BIO_puts(bp,"\n") <= 0
264				   || !BIO_indent(bp,off+4,128))
265				    return 0;
266				}
267			if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
268				<= 0) return(0);
269			}
270		if (BIO_write(bp,"\n",1) <= 0) return(0);
271		}
272	return(1);
273	}
274
275#ifndef OPENSSL_NO_DH
276#ifndef OPENSSL_NO_FP_API
277int DHparams_print_fp(FILE *fp, const DH *x)
278        {
279        BIO *b;
280        int ret;
281
282        if ((b=BIO_new(BIO_s_file())) == NULL)
283		{
284		DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
285                return(0);
286		}
287        BIO_set_fp(b,fp,BIO_NOCLOSE);
288        ret=DHparams_print(b, x);
289        BIO_free(b);
290        return(ret);
291        }
292#endif
293
294int DHparams_print(BIO *bp, const DH *x)
295	{
296	unsigned char *m=NULL;
297	int reason=ERR_R_BUF_LIB,ret=0;
298	size_t buf_len=0, i;
299
300	if (x->p)
301		buf_len = (size_t)BN_num_bytes(x->p);
302	if (x->g)
303		if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
304			buf_len = i;
305	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
306	if (m == NULL)
307		{
308		reason=ERR_R_MALLOC_FAILURE;
309		goto err;
310		}
311
312	if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
313		BN_num_bits(x->p)) <= 0)
314		goto err;
315	if (!print(bp,"prime:",x->p,m,4)) goto err;
316	if (!print(bp,"generator:",x->g,m,4)) goto err;
317	if (x->length != 0)
318		{
319		if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
320			(int)x->length) <= 0) goto err;
321		}
322	ret=1;
323	if (0)
324		{
325err:
326		DHerr(DH_F_DHPARAMS_PRINT,reason);
327		}
328	if (m != NULL) OPENSSL_free(m);
329	return(ret);
330	}
331#endif
332
333#ifndef OPENSSL_NO_DSA
334#ifndef OPENSSL_NO_FP_API
335int DSAparams_print_fp(FILE *fp, const DSA *x)
336        {
337        BIO *b;
338        int ret;
339
340        if ((b=BIO_new(BIO_s_file())) == NULL)
341		{
342		DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
343                return(0);
344		}
345        BIO_set_fp(b,fp,BIO_NOCLOSE);
346        ret=DSAparams_print(b, x);
347        BIO_free(b);
348        return(ret);
349        }
350#endif
351
352int DSAparams_print(BIO *bp, const DSA *x)
353	{
354	unsigned char *m=NULL;
355	int reason=ERR_R_BUF_LIB,ret=0;
356	size_t buf_len=0,i;
357
358	if (x->p)
359		buf_len = (size_t)BN_num_bytes(x->p);
360	if (x->q)
361		if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
362			buf_len = i;
363	if (x->g)
364		if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
365			buf_len = i;
366	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
367	if (m == NULL)
368		{
369		reason=ERR_R_MALLOC_FAILURE;
370		goto err;
371		}
372
373	if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
374		BN_num_bits(x->p)) <= 0)
375		goto err;
376	if (!print(bp,"p:",x->p,m,4)) goto err;
377	if (!print(bp,"q:",x->q,m,4)) goto err;
378	if (!print(bp,"g:",x->g,m,4)) goto err;
379	ret=1;
380err:
381	if (m != NULL) OPENSSL_free(m);
382	DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
383	return(ret);
384	}
385
386#endif /* !OPENSSL_NO_DSA */
387
388