[thirdparty/openssl.git] / crypto / ec / eck_prn.c

/* crypto/ec/eck_prn.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * Binary polynomial ECC support in OpenSSL originally developed by 
 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 */

#include <stdio.h>
#include "cryptlib.h"
#include <openssl/evp.h>
#include <openssl/ec.h>

#ifndef OPENSSL_NO_FP_API
int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
	{
	BIO *b;
	int ret;

	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
		return(0);
		}
	BIO_set_fp(b, fp, BIO_NOCLOSE);
	ret = ECPKParameters_print(b, x, off);
	BIO_free(b);
	return(ret);
	}

int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
	{
	BIO *b;
	int ret;
 
	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
		return(0);
		}
	BIO_set_fp(b, fp, BIO_NOCLOSE);
	ret = EC_KEY_print(b, x, off);
	BIO_free(b);
	return(ret);
	}

int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
	{
	BIO *b;
	int ret;
 
	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
		return(0);
		}
	BIO_set_fp(b, fp, BIO_NOCLOSE);
	ret = ECParameters_print(b, x);
	BIO_free(b);
	return(ret);
	}
#endif

int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
	{
	EVP_PKEY *pk;
	int ret;
	pk = EVP_PKEY_new();
	if (!pk || !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x))
		return 0;
	ret = EVP_PKEY_print_private(bp, pk, off, NULL);
	EVP_PKEY_free(pk);
	return ret;
	}

int ECParameters_print(BIO *bp, const EC_KEY *x)
	{
	EVP_PKEY *pk;
	int ret;
	pk = EVP_PKEY_new();
	if (!pk || !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x))
		return 0;
	ret = EVP_PKEY_print_params(bp, pk, 4, NULL);
	EVP_PKEY_free(pk);
	return ret;
	}

static int print_bin(BIO *fp, const char *str, const unsigned char *num,
		size_t len, int off);

int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
	{
	unsigned char *buffer=NULL;
	size_t	buf_len=0, i;
	int     ret=0, reason=ERR_R_BIO_LIB;
	BN_CTX  *ctx=NULL;
	const EC_POINT *point=NULL;
	BIGNUM	*p=NULL, *a=NULL, *b=NULL, *gen=NULL,
		*order=NULL, *cofactor=NULL;
	const unsigned char *seed;
	size_t	seed_len=0;
	
	static const char *gen_compressed = "Generator (compressed):";
	static const char *gen_uncompressed = "Generator (uncompressed):";
	static const char *gen_hybrid = "Generator (hybrid):";
 
	if (!x)
		{
		reason = ERR_R_PASSED_NULL_PARAMETER;
		goto err;
		}

	ctx = BN_CTX_new();
	if (ctx == NULL)
		{
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
		}

	if (EC_GROUP_get_asn1_flag(x))
		{
		/* the curve parameter are given by an asn1 OID */
		int nid;

		if (!BIO_indent(bp, off, 128))
			goto err;

		nid = EC_GROUP_get_curve_name(x);
		if (nid == 0)
			goto err;

		if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
			goto err;
		if (BIO_printf(bp, "\n") <= 0)
			goto err;
		}
	else
		{
		/* explicit parameters */
		int is_char_two = 0;
		point_conversion_form_t form;
		int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));

		if (tmp_nid == NID_X9_62_characteristic_two_field)
			is_char_two = 1;

		if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
			(b = BN_new()) == NULL || (order = BN_new()) == NULL ||
			(cofactor = BN_new()) == NULL)
			{
			reason = ERR_R_MALLOC_FAILURE;
			goto err;
			}

		if (is_char_two)
			{
			if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx))
				{
				reason = ERR_R_EC_LIB;
				goto err;
				}
			}
		else /* prime field */
			{
			if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
				{
				reason = ERR_R_EC_LIB;
				goto err;
				}
			}

		if ((point = EC_GROUP_get0_generator(x)) == NULL)
			{
			reason = ERR_R_EC_LIB;
			goto err;
			}
		if (!EC_GROUP_get_order(x, order, NULL) || 
            		!EC_GROUP_get_cofactor(x, cofactor, NULL))
			{
			reason = ERR_R_EC_LIB;
			goto err;
			}
		
		form = EC_GROUP_get_point_conversion_form(x);

		if ((gen = EC_POINT_point2bn(x, point, 
				form, NULL, ctx)) == NULL)
			{
			reason = ERR_R_EC_LIB;
			goto err;
			}

		buf_len = (size_t)BN_num_bytes(p);
		if (buf_len < (i = (size_t)BN_num_bytes(a)))
			buf_len = i;
		if (buf_len < (i = (size_t)BN_num_bytes(b)))
			buf_len = i;
		if (buf_len < (i = (size_t)BN_num_bytes(gen)))
			buf_len = i;
		if (buf_len < (i = (size_t)BN_num_bytes(order)))
			buf_len = i;
		if (buf_len < (i = (size_t)BN_num_bytes(cofactor))) 
			buf_len = i;

		if ((seed = EC_GROUP_get0_seed(x)) != NULL)
			seed_len = EC_GROUP_get_seed_len(x);

		buf_len += 10;
		if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
			{
			reason = ERR_R_MALLOC_FAILURE;
			goto err;
			}

		if (!BIO_indent(bp, off, 128))
			goto err;

		/* print the 'short name' of the field type */
		if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
			<= 0)
			goto err;  

		if (is_char_two)
			{
			/* print the 'short name' of the base type OID */
			int basis_type = EC_GROUP_get_basis_type(x);
			if (basis_type == 0)
				goto err;

			if (!BIO_indent(bp, off, 128))
				goto err;

			if (BIO_printf(bp, "Basis Type: %s\n", 
				OBJ_nid2sn(basis_type)) <= 0)
				goto err;

			/* print the polynomial */
			if ((p != NULL) && !ASN1_bn_print(bp, "Polynomial:", p, buffer,
				off))
				goto err;
			}
		else
			{
			if ((p != NULL) && !ASN1_bn_print(bp, "Prime:", p, buffer,off))
				goto err;
			}
		if ((a != NULL) && !ASN1_bn_print(bp, "A:   ", a, buffer, off)) 
			goto err;
		if ((b != NULL) && !ASN1_bn_print(bp, "B:   ", b, buffer, off))
			goto err;
		if (form == POINT_CONVERSION_COMPRESSED)
			{
			if ((gen != NULL) && !ASN1_bn_print(bp, gen_compressed, gen,
				buffer, off))
				goto err;
			}
		else if (form == POINT_CONVERSION_UNCOMPRESSED)
			{
			if ((gen != NULL) && !ASN1_bn_print(bp, gen_uncompressed, gen,
				buffer, off))
				goto err;
			}
		else /* form == POINT_CONVERSION_HYBRID */
			{
			if ((gen != NULL) && !ASN1_bn_print(bp, gen_hybrid, gen,
				buffer, off))
				goto err;
			}
		if ((order != NULL) && !ASN1_bn_print(bp, "Order: ", order, 
			buffer, off)) goto err;
		if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofactor, 
			buffer, off)) goto err;
		if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
			goto err;
		}
	ret=1;
err:
	if (!ret)
 		ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
	if (p) 
		BN_free(p);
	if (a) 
		BN_free(a);
	if (b)
		BN_free(b);
	if (gen)
		BN_free(gen);
	if (order)
		BN_free(order);
	if (cofactor)
		BN_free(cofactor);
	if (ctx)
		BN_CTX_free(ctx);
	if (buffer != NULL) 
		OPENSSL_free(buffer);
	return(ret);	
	}

static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
		size_t len, int off)
	{
	size_t i;
	char str[128];

	if (buf == NULL)
		return 1;
	if (off)
		{
		if (off > 128)
			off=128;
		memset(str,' ',off);
		if (BIO_write(fp, str, off) <= 0)
			return 0;
		}

	if (BIO_printf(fp,"%s", name) <= 0)
		return 0;

	for (i=0; i<len; i++)
		{
		if ((i%15) == 0)
			{
			str[0]='\n';
			memset(&(str[1]),' ',off+4);
			if (BIO_write(fp, str, off+1+4) <= 0)
				return 0;
			}
		if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
			return 0;
		}
	if (BIO_write(fp,"\n",1) <= 0)
		return 0;

	return 1;
	}
Commit	Line	Data
1b593194 DSH	1	/* crypto/ec/eck_prn.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	* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
	60	* Binary polynomial ECC support in OpenSSL originally developed by
	61	* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
	62	*/
	63
	64	#include <stdio.h>
65	#include "cryptlib.h"
66	#include <openssl/evp.h>
67	#include <openssl/ec.h>
68
69	#ifndef OPENSSL_NO_FP_API
70	int ECPKParameters_print_fp(FILE fp, const EC_GROUP x, int off)
71	{
72	BIO *b;
73	int ret;
74
75	if ((b=BIO_new(BIO_s_file())) == NULL)
76	{
77	ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
78	return(0);
79	}
80	BIO_set_fp(b, fp, BIO_NOCLOSE);
81	ret = ECPKParameters_print(b, x, off);
82	BIO_free(b);
83	return(ret);
84	}
85
86	int EC_KEY_print_fp(FILE fp, const EC_KEY x, int off)
87	{
88	BIO *b;
89	int ret;
90
91	if ((b=BIO_new(BIO_s_file())) == NULL)
92	{
93	ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
94	return(0);
95	}
96	BIO_set_fp(b, fp, BIO_NOCLOSE);
97	ret = EC_KEY_print(b, x, off);
98	BIO_free(b);
99	return(ret);
100	}
101
102	int ECParameters_print_fp(FILE fp, const EC_KEY x)
103	{
104	BIO *b;
105	int ret;
106
107	if ((b=BIO_new(BIO_s_file())) == NULL)
108	{
109	ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
110	return(0);
111	}
112	BIO_set_fp(b, fp, BIO_NOCLOSE);
113	ret = ECParameters_print(b, x);
114	BIO_free(b);
115	return(ret);
116	}
117	#endif
118
119	int EC_KEY_print(BIO bp, const EC_KEY x, int off)
120	{
121	EVP_PKEY *pk;
122	int ret;
123	pk = EVP_PKEY_new();
124	if (!pk \|\| !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x))
125	return 0;
126	ret = EVP_PKEY_print_private(bp, pk, off, NULL);
127	EVP_PKEY_free(pk);
128	return ret;
129	}
130
131	int ECParameters_print(BIO bp, const EC_KEY x)
132	{
133	EVP_PKEY *pk;
134	int ret;
135	pk = EVP_PKEY_new();
136	if (!pk \|\| !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x))
137	return 0;
138	ret = EVP_PKEY_print_params(bp, pk, 4, NULL);
139	EVP_PKEY_free(pk);
140	return ret;
141	}
142
143	static int print_bin(BIO fp, const char str, const unsigned char *num,
144	size_t len, int off);
145
146	int ECPKParameters_print(BIO bp, const EC_GROUP x, int off)
147	{
148	unsigned char *buffer=NULL;
149	size_t buf_len=0, i;
150	int ret=0, reason=ERR_R_BIO_LIB;
151	BN_CTX *ctx=NULL;
152	const EC_POINT *point=NULL;
153	BIGNUM p=NULL, a=NULL, b=NULL, gen=NULL,
154	order=NULL, cofactor=NULL;
155	const unsigned char *seed;
156	size_t seed_len=0;
157
158	static const char *gen_compressed = "Generator (compressed):";
159	static const char *gen_uncompressed = "Generator (uncompressed):";
160	static const char *gen_hybrid = "Generator (hybrid):";
161
162	if (!x)
163	{
164	reason = ERR_R_PASSED_NULL_PARAMETER;
165	goto err;
166	}
167
168	ctx = BN_CTX_new();
169	if (ctx == NULL)
170	{
171	reason = ERR_R_MALLOC_FAILURE;
172	goto err;
173	}
174
175	if (EC_GROUP_get_asn1_flag(x))
176	{
177	/* the curve parameter are given by an asn1 OID */
178	int nid;
179
180	if (!BIO_indent(bp, off, 128))
181	goto err;
182
183	nid = EC_GROUP_get_curve_name(x);
184	if (nid == 0)
185	goto err;
186
187	if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
188	goto err;
189	if (BIO_printf(bp, "\n") <= 0)
190	goto err;
191	}
192	else
193	{
194	/* explicit parameters */
195	int is_char_two = 0;
196	point_conversion_form_t form;
197	int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
198
199	if (tmp_nid == NID_X9_62_characteristic_two_field)
200	is_char_two = 1;
201
202	if ((p = BN_new()) == NULL \|\| (a = BN_new()) == NULL \|\|
203	(b = BN_new()) == NULL \|\| (order = BN_new()) == NULL \|\|
204	(cofactor = BN_new()) == NULL)
205	{
206	reason = ERR_R_MALLOC_FAILURE;
207	goto err;
208	}
209
210	if (is_char_two)
211	{
212	if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx))
213	{
214	reason = ERR_R_EC_LIB;
215	goto err;
216	}
217	}
218	else /* prime field */
219	{
220	if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
221	{
222	reason = ERR_R_EC_LIB;
223	goto err;
224	}
225	}
226
227	if ((point = EC_GROUP_get0_generator(x)) == NULL)
228	{
229	reason = ERR_R_EC_LIB;
230	goto err;
231	}
232	if (!EC_GROUP_get_order(x, order, NULL) \|\|
233	!EC_GROUP_get_cofactor(x, cofactor, NULL))
234	{
235	reason = ERR_R_EC_LIB;
236	goto err;
237	}
238
239	form = EC_GROUP_get_point_conversion_form(x);
240
241	if ((gen = EC_POINT_point2bn(x, point,
242	form, NULL, ctx)) == NULL)
243	{
244	reason = ERR_R_EC_LIB;
245	goto err;
246	}
247
248	buf_len = (size_t)BN_num_bytes(p);
249	if (buf_len < (i = (size_t)BN_num_bytes(a)))
250	buf_len = i;
251	if (buf_len < (i = (size_t)BN_num_bytes(b)))
252	buf_len = i;
253	if (buf_len < (i = (size_t)BN_num_bytes(gen)))
254	buf_len = i;
255	if (buf_len < (i = (size_t)BN_num_bytes(order)))
256	buf_len = i;
257	if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
258	buf_len = i;
259
260	if ((seed = EC_GROUP_get0_seed(x)) != NULL)
261	seed_len = EC_GROUP_get_seed_len(x);
262
263	buf_len += 10;
264	if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
265	{
266	reason = ERR_R_MALLOC_FAILURE;
267	goto err;
268	}
269
270	if (!BIO_indent(bp, off, 128))
271	goto err;
272
273	/* print the 'short name' of the field type */
274	if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
275	<= 0)
276	goto err;
277
278	if (is_char_two)
279	{
280	/* print the 'short name' of the base type OID */
281	int basis_type = EC_GROUP_get_basis_type(x);
282	if (basis_type == 0)
283	goto err;
284
285	if (!BIO_indent(bp, off, 128))
286	goto err;
287
288	if (BIO_printf(bp, "Basis Type: %s\n",
289	OBJ_nid2sn(basis_type)) <= 0)
290	goto err;
291
292	/* print the polynomial */
293	if ((p != NULL) && !ASN1_bn_print(bp, "Polynomial:", p, buffer,
294	off))
295	goto err;
296	}
297	else
298	{
299	if ((p != NULL) && !ASN1_bn_print(bp, "Prime:", p, buffer,off))
300	goto err;
301	}
302	if ((a != NULL) && !ASN1_bn_print(bp, "A: ", a, buffer, off))
303	goto err;
304	if ((b != NULL) && !ASN1_bn_print(bp, "B: ", b, buffer, off))
305	goto err;
306	if (form == POINT_CONVERSION_COMPRESSED)
307	{
308	if ((gen != NULL) && !ASN1_bn_print(bp, gen_compressed, gen,
309	buffer, off))
310	goto err;
311	}
312	else if (form == POINT_CONVERSION_UNCOMPRESSED)
313	{
314	if ((gen != NULL) && !ASN1_bn_print(bp, gen_uncompressed, gen,
315	buffer, off))
316	goto err;
317	}
318	else /* form == POINT_CONVERSION_HYBRID */
319	{
320	if ((gen != NULL) && !ASN1_bn_print(bp, gen_hybrid, gen,
321	buffer, off))
322	goto err;
323	}
324	if ((order != NULL) && !ASN1_bn_print(bp, "Order: ", order,
325	buffer, off)) goto err;
326	if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofactor,
327	buffer, off)) goto err;
328	if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
329	goto err;
330	}
331	ret=1;
332	err:
333	if (!ret)
334	ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
335	if (p)
336	BN_free(p);
337	if (a)
338	BN_free(a);
339	if (b)
340	BN_free(b);
341	if (gen)
342	BN_free(gen);
343	if (order)
344	BN_free(order);
345	if (cofactor)
346	BN_free(cofactor);
347	if (ctx)
348	BN_CTX_free(ctx);
349	if (buffer != NULL)
350	OPENSSL_free(buffer);
351	return(ret);
352	}
353
354	static int print_bin(BIO fp, const char name, const unsigned char *buf,
355	size_t len, int off)
356	{
357	size_t i;
358	char str[128];
359
360	if (buf == NULL)
361	return 1;
362	if (off)
363	{
364	if (off > 128)
365	off=128;
366	memset(str,' ',off);
367	if (BIO_write(fp, str, off) <= 0)
368	return 0;
369	}
370
371	if (BIO_printf(fp,"%s", name) <= 0)
372	return 0;
373
374	for (i=0; i<len; i++)
375	{
376	if ((i%15) == 0)
377	{
378	str[0]='\n';
379	memset(&(str[1]),' ',off+4);
380	if (BIO_write(fp, str, off+1+4) <= 0)
381	return 0;
382	}
383	if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
384	return 0;
385	}
386	if (BIO_write(fp,"\n",1) <= 0)
387	return 0;
388
389	return 1;
390	}