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

/* crypto/ec/eck_prn.c */
/*
 * Written by Nils Larsch for the OpenSSL project.
 */
/* ====================================================================
 * Copyright (c) 1998-2005 The OpenSSL Project.  All rights reserved.
 *
 * 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 above 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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * Portions originally developed by SUN MICROSYSTEMS, INC., and
 * contributed to the OpenSSL project.
 */

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

#ifndef OPENSSL_NO_STDIO
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;
        const char *nname;

        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;
        nname = EC_curve_nid2nist(nid);
        if (nname) {
            if (!BIO_indent(bp, off, 128))
                goto err;
            if (BIO_printf(bp, "NIST CURVE: %s\n", nname) <= 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;
        }
#ifndef OPENSSL_NO_EC2M
        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 */
#endif
        {
            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);
    BN_free(p);
    BN_free(a);
    BN_free(b);
    BN_free(gen);
    BN_free(order);
    BN_free(cofactor);
    BN_CTX_free(ctx);
    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 > 0) {
        if (off > 128)
            off = 128;
        memset(str, ' ', off);
        if (BIO_write(fp, str, off) <= 0)
            return 0;
    } else {
        off = 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	1	/* crypto/ec/eck_prn.c */
a4e75b3d DSH	2	/*
	3	* Written by Nils Larsch for the OpenSSL project.
	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
1b593194	7	*
1b593194 DSH	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
a4e75b3d DSH	11	*
a4e75b3d DSH	12	* 1. Redistributions of source code must retain the above copyright
0f113f3e	13	* notice, this list of conditions and the following disclaimer.
a4e75b3d	14	*
1b593194	15	* 2. Redistributions in binary form must reproduce the above copyright
a4e75b3d DSH	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* openssl-core@openssl.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*
	53	* This product includes cryptographic software written by Eric Young
	54	* (eay@cryptsoft.com). This product includes software written by Tim
	55	* Hudson (tjh@cryptsoft.com).
	56	*
1b593194 DSH	57	*/
	58	/* ====================================================================
	59	* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
0f113f3e	60	* Portions originally developed by SUN MICROSYSTEMS, INC., and
a4e75b3d	61	* contributed to the OpenSSL project.
1b593194 DSH	62	*/
	63
	64	#include <stdio.h>
b39fc560	65	#include "internal/cryptlib.h"
1b593194 DSH	66	#include <openssl/evp.h>
1b593194 DSH	67	#include <openssl/ec.h>
1e26a8ba	68	#include <openssl/bn.h>
1b593194	69
4b618848	70	#ifndef OPENSSL_NO_STDIO
1b593194	71	int ECPKParameters_print_fp(FILE fp, const EC_GROUP x, int off)
0f113f3e MC	72	{
	73	BIO *b;
	74	int ret;
	75
	76	if ((b = BIO_new(BIO_s_file())) == NULL) {
	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	}
1b593194 DSH	85
1b593194 DSH	86	int EC_KEY_print_fp(FILE fp, const EC_KEY x, int off)
0f113f3e MC	87	{
	88	BIO *b;
	89	int ret;
	90
	91	if ((b = BIO_new(BIO_s_file())) == NULL) {
	92	ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
	93	return (0);
	94	}
	95	BIO_set_fp(b, fp, BIO_NOCLOSE);
	96	ret = EC_KEY_print(b, x, off);
	97	BIO_free(b);
	98	return (ret);
	99	}
1b593194 DSH	100
1b593194 DSH	101	int ECParameters_print_fp(FILE fp, const EC_KEY x)
0f113f3e MC	102	{
	103	BIO *b;
	104	int ret;
	105
	106	if ((b = BIO_new(BIO_s_file())) == NULL) {
	107	ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
	108	return (0);
	109	}
	110	BIO_set_fp(b, fp, BIO_NOCLOSE);
	111	ret = ECParameters_print(b, x);
	112	BIO_free(b);
	113	return (ret);
	114	}
1b593194 DSH	115	#endif
	116
	117	int EC_KEY_print(BIO bp, const EC_KEY x, int off)
0f113f3e MC	118	{
	119	EVP_PKEY *pk;
	120	int ret;
	121	pk = EVP_PKEY_new();
	122	if (!pk \|\| !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x))
	123	return 0;
	124	ret = EVP_PKEY_print_private(bp, pk, off, NULL);
	125	EVP_PKEY_free(pk);
	126	return ret;
	127	}
1b593194 DSH	128
1b593194 DSH	129	int ECParameters_print(BIO bp, const EC_KEY x)
0f113f3e MC	130	{
	131	EVP_PKEY *pk;
	132	int ret;
	133	pk = EVP_PKEY_new();
	134	if (!pk \|\| !EVP_PKEY_set1_EC_KEY(pk, (EC_KEY *)x))
	135	return 0;
	136	ret = EVP_PKEY_print_params(bp, pk, 4, NULL);
	137	EVP_PKEY_free(pk);
	138	return ret;
	139	}
1b593194 DSH	140
1b593194 DSH	141	static int print_bin(BIO fp, const char str, const unsigned char *num,
0f113f3e	142	size_t len, int off);
1b593194 DSH	143
1b593194 DSH	144	int ECPKParameters_print(BIO bp, const EC_GROUP x, int off)
0f113f3e MC	145	{
	146	unsigned char *buffer = NULL;
	147	size_t buf_len = 0, i;
	148	int ret = 0, reason = ERR_R_BIO_LIB;
	149	BN_CTX *ctx = NULL;
	150	const EC_POINT *point = NULL;
	151	BIGNUM p = NULL, a = NULL, b = NULL, gen = NULL,
	152	order = NULL, cofactor = NULL;
	153	const unsigned char *seed;
	154	size_t seed_len = 0;
	155
	156	static const char *gen_compressed = "Generator (compressed):";
	157	static const char *gen_uncompressed = "Generator (uncompressed):";
	158	static const char *gen_hybrid = "Generator (hybrid):";
	159
	160	if (!x) {
	161	reason = ERR_R_PASSED_NULL_PARAMETER;
	162	goto err;
	163	}
	164
	165	ctx = BN_CTX_new();
	166	if (ctx == NULL) {
	167	reason = ERR_R_MALLOC_FAILURE;
	168	goto err;
	169	}
	170
	171	if (EC_GROUP_get_asn1_flag(x)) {
	172	/* the curve parameter are given by an asn1 OID */
	173	int nid;
	174	const char *nname;
	175
	176	if (!BIO_indent(bp, off, 128))
	177	goto err;
	178
	179	nid = EC_GROUP_get_curve_name(x);
	180	if (nid == 0)
	181	goto err;
	182	if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
	183	goto err;
	184	if (BIO_printf(bp, "\n") <= 0)
	185	goto err;
	186	nname = EC_curve_nid2nist(nid);
	187	if (nname) {
	188	if (!BIO_indent(bp, off, 128))
	189	goto err;
	190	if (BIO_printf(bp, "NIST CURVE: %s\n", nname) <= 0)
	191	goto err;
	192	}
	193	} else {
	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	reason = ERR_R_MALLOC_FAILURE;
	206	goto err;
	207	}
b3310161	208	#ifndef OPENSSL_NO_EC2M
0f113f3e MC	209	if (is_char_two) {
	210	if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx)) {
	211	reason = ERR_R_EC_LIB;
	212	goto err;
	213	}
	214	} else /* prime field */
b3310161	215	#endif
0f113f3e MC	216	{
	217	if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx)) {
	218	reason = ERR_R_EC_LIB;
	219	goto err;
	220	}
	221	}
	222
	223	if ((point = EC_GROUP_get0_generator(x)) == NULL) {
	224	reason = ERR_R_EC_LIB;
	225	goto err;
	226	}
	227	if (!EC_GROUP_get_order(x, order, NULL) \|\|
	228	!EC_GROUP_get_cofactor(x, cofactor, NULL)) {
	229	reason = ERR_R_EC_LIB;
	230	goto err;
	231	}
	232
	233	form = EC_GROUP_get_point_conversion_form(x);
	234
	235	if ((gen = EC_POINT_point2bn(x, point, form, NULL, ctx)) == NULL) {
	236	reason = ERR_R_EC_LIB;
	237	goto err;
	238	}
	239
	240	buf_len = (size_t)BN_num_bytes(p);
	241	if (buf_len < (i = (size_t)BN_num_bytes(a)))
	242	buf_len = i;
	243	if (buf_len < (i = (size_t)BN_num_bytes(b)))
	244	buf_len = i;
	245	if (buf_len < (i = (size_t)BN_num_bytes(gen)))
	246	buf_len = i;
	247	if (buf_len < (i = (size_t)BN_num_bytes(order)))
	248	buf_len = i;
	249	if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
	250	buf_len = i;
	251
	252	if ((seed = EC_GROUP_get0_seed(x)) != NULL)
	253	seed_len = EC_GROUP_get_seed_len(x);
	254
	255	buf_len += 10;
	256	if ((buffer = OPENSSL_malloc(buf_len)) == NULL) {
	257	reason = ERR_R_MALLOC_FAILURE;
	258	goto err;
	259	}
	260
	261	if (!BIO_indent(bp, off, 128))
	262	goto err;
	263
	264	/* print the 'short name' of the field type */
	265	if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
	266	<= 0)
	267	goto err;
	268
	269	if (is_char_two) {
	270	/* print the 'short name' of the base type OID */
	271	int basis_type = EC_GROUP_get_basis_type(x);
	272	if (basis_type == 0)
	273	goto err;
	274
	275	if (!BIO_indent(bp, off, 128))
	276	goto err;
	277
	278	if (BIO_printf(bp, "Basis Type: %s\n",
	279	OBJ_nid2sn(basis_type)) <= 0)
280	goto err;
281
282	/* print the polynomial */
283	if ((p != NULL) && !ASN1_bn_print(bp, "Polynomial:", p, buffer,
284	off))
285	goto err;
286	} else {
287	if ((p != NULL) && !ASN1_bn_print(bp, "Prime:", p, buffer, off))
288	goto err;
289	}
290	if ((a != NULL) && !ASN1_bn_print(bp, "A: ", a, buffer, off))
291	goto err;
292	if ((b != NULL) && !ASN1_bn_print(bp, "B: ", b, buffer, off))
293	goto err;
294	if (form == POINT_CONVERSION_COMPRESSED) {
295	if ((gen != NULL) && !ASN1_bn_print(bp, gen_compressed, gen,
296	buffer, off))
297	goto err;
298	} else if (form == POINT_CONVERSION_UNCOMPRESSED) {
299	if ((gen != NULL) && !ASN1_bn_print(bp, gen_uncompressed, gen,
300	buffer, off))
301	goto err;
302	} else { /* form == POINT_CONVERSION_HYBRID */
303
304	if ((gen != NULL) && !ASN1_bn_print(bp, gen_hybrid, gen,
305	buffer, off))
306	goto err;
307	}
308	if ((order != NULL) && !ASN1_bn_print(bp, "Order: ", order,
309	buffer, off))
310	goto err;
311	if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofactor,
312	buffer, off))
313	goto err;
314	if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
315	goto err;
316	}
317	ret = 1;
318	err:
319	if (!ret)
320	ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
23a1d5e9 RS	321	BN_free(p);
	322	BN_free(a);
	323	BN_free(b);
	324	BN_free(gen);
	325	BN_free(order);
	326	BN_free(cofactor);
	327	BN_CTX_free(ctx);
b548a1f1	328	OPENSSL_free(buffer);
0f113f3e MC	329	return (ret);
0f113f3e MC	330	}
1b593194 DSH	331
1b593194 DSH	332	static int print_bin(BIO fp, const char name, const unsigned char *buf,
0f113f3e MC	333	size_t len, int off)
	334	{
	335	size_t i;
	336	char str[128];
	337
	338	if (buf == NULL)
	339	return 1;
3deeeeb6	340	if (off > 0) {
0f113f3e MC	341	if (off > 128)
	342	off = 128;
	343	memset(str, ' ', off);
	344	if (BIO_write(fp, str, off) <= 0)
	345	return 0;
3deeeeb6 MC	346	} else {
3deeeeb6 MC	347	off = 0;
0f113f3e MC	348	}
	349
	350	if (BIO_printf(fp, "%s", name) <= 0)
	351	return 0;
	352
	353	for (i = 0; i < len; i++) {
	354	if ((i % 15) == 0) {
	355	str[0] = '\n';
	356	memset(&(str[1]), ' ', off + 4);
	357	if (BIO_write(fp, str, off + 1 + 4) <= 0)
	358	return 0;
	359	}
	360	if (BIO_printf(fp, "%02x%s", buf[i], ((i + 1) == len) ? "" : ":") <=
	361	0)
	362	return 0;
	363	}
	364	if (BIO_write(fp, "\n", 1) <= 0)
	365	return 0;
	366
	367	return 1;
	368	}