[thirdparty/openssl.git] / crypto / asn1 / t_pkey.c

/* crypto/asn1/t_pkey.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.]
 */

#include <stdio.h>
#include "cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/bn.h>
#ifndef OPENSSL_NO_RSA
#include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_DH
#include <openssl/dh.h>
#endif
#ifndef OPENSSL_NO_DSA
#include <openssl/dsa.h>
#endif
#ifndef OPENSSL_NO_ECDSA
#include <openssl/ecdsa.h>
#endif

static int print(BIO *fp,const char *str,BIGNUM *num,
		unsigned char *buf,int off);
#ifndef OPENSSL_NO_RSA
#ifndef OPENSSL_NO_FP_API
int RSA_print_fp(FILE *fp, const RSA *x, int off)
	{
	BIO *b;
	int ret;

	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
		return(0);
		}
	BIO_set_fp(b,fp,BIO_NOCLOSE);
	ret=RSA_print(b,x,off);
	BIO_free(b);
	return(ret);
	}
#endif

int RSA_print(BIO *bp, const RSA *x, int off)
	{
	char str[128];
	const char *s;
	unsigned char *m=NULL;
	int i,ret=0;

	i=RSA_size(x);
	m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
	if (m == NULL)
		{
		RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
		goto err;
		}

	if (off)
		{
		if (off > 128) off=128;
		memset(str,' ',off);
		}
	if (x->d != NULL)
		{
		if (off && (BIO_write(bp,str,off) <= 0)) goto err;
		if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
			<= 0) goto err;
		}

	if (x->d == NULL)
		sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
	else
		strcpy(str,"modulus:");
	if (!print(bp,str,x->n,m,off)) goto err;
	s=(x->d == NULL)?"Exponent:":"publicExponent:";
	if (!print(bp,s,x->e,m,off)) goto err;
	if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
	if (!print(bp,"prime1:",x->p,m,off)) goto err;
	if (!print(bp,"prime2:",x->q,m,off)) goto err;
	if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
	if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
	if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
	ret=1;
err:
	if (m != NULL) OPENSSL_free(m);
	return(ret);
	}
#endif /* OPENSSL_NO_RSA */

#ifndef OPENSSL_NO_DSA
#ifndef OPENSSL_NO_FP_API
int DSA_print_fp(FILE *fp, const DSA *x, int off)
	{
	BIO *b;
	int ret;

	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
		return(0);
		}
	BIO_set_fp(b,fp,BIO_NOCLOSE);
	ret=DSA_print(b,x,off);
	BIO_free(b);
	return(ret);
	}
#endif

int DSA_print(BIO *bp, const DSA *x, int off)
	{
	char str[128];
	unsigned char *m=NULL;
	int i,ret=0;
	BIGNUM *bn=NULL;

	if (x->p != NULL)
		bn=x->p;
	else if (x->priv_key != NULL)
		bn=x->priv_key;
	else if (x->pub_key != NULL)
		bn=x->pub_key;
		
	/* larger than needed but what the hell :-) */
	if (bn != NULL)
		i=BN_num_bytes(bn)*2;
	else
		i=256;
	m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
	if (m == NULL)
		{
		DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
		goto err;
		}

	if (off)
		{
		if (off > 128) off=128;
		memset(str,' ',off);
		}
	if (x->priv_key != NULL)
		{
		if (off && (BIO_write(bp,str,off) <= 0)) goto err;
		if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
			<= 0) goto err;
		}

	if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
		goto err;
	if ((x->pub_key  != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
		goto err;
	if ((x->p != NULL) && !print(bp,"P:   ",x->p,m,off)) goto err;
	if ((x->q != NULL) && !print(bp,"Q:   ",x->q,m,off)) goto err;
	if ((x->g != NULL) && !print(bp,"G:   ",x->g,m,off)) goto err;
	ret=1;
err:
	if (m != NULL) OPENSSL_free(m);
	return(ret);
	}
#endif /* !OPENSSL_NO_DSA */

#ifndef OPENSSL_NO_ECDSA
#ifndef OPENSSL_NO_FP_API
int ECDSA_print_fp(FILE *fp, const ECDSA *x, int off)
{
	BIO *b;
	int ret;
 
	if ((b=BIO_new(BIO_s_file())) == NULL)
	{
		ECDSAerr(ECDSA_F_ECDSA_PRINT_FP, ERR_R_BIO_LIB);
		return(0);
	}
	BIO_set_fp(b, fp, BIO_NOCLOSE);
	ret = ECDSA_print(b, x, off);
	BIO_free(b);
	return(ret);
}
#endif

int ECDSA_print(BIO *bp, const ECDSA *x, int off)
	{
	char str[128];
	unsigned char *buffer=NULL;
	int     i, buf_len=0, ret=0, reason=ERR_R_BIO_LIB;
	BIGNUM  *tmp_1=NULL, *tmp_2=NULL, *tmp_3=NULL,
		*tmp_4=NULL, *tmp_5=NULL;
	BN_CTX  *ctx=NULL;
	EC_POINT *point=NULL;
 
	/* TODO: fields other than prime fields */
       
	if (!x || !x->group)
		{
		reason = ECDSA_R_MISSING_PARAMETERS;
		goto err;
		}
	if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL ||
		(tmp_3 = BN_new()) == NULL || (ctx = BN_CTX_new()) == NULL)
		{
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
		}
	if (!EC_GROUP_get_curve_GFp(x->group, tmp_1, tmp_2, tmp_3, ctx))
		{
		reason = ERR_R_EC_LIB;
		goto err;
		}
	if ((point = EC_GROUP_get0_generator(x->group)) == NULL)
		{
		reason = ERR_R_EC_LIB;
		goto err;
		}
	if ((buf_len = EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED, NULL, 0, ctx)) == 0)
		{
		reason = ECDSA_R_UNEXPECTED_PARAMETER_LENGTH;
		goto err;
		}
	if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
		{
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
		}
	if (!EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED, 
				buffer, buf_len, ctx)) goto err;
	if ((tmp_4 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
		{
		reason = ERR_R_BN_LIB;
		goto err;
		}
	if ((i = EC_POINT_point2oct(x->group, x->pub_key, POINT_CONVERSION_COMPRESSED, NULL, 0, ctx)) == 0)
		{
		reason = ECDSA_R_UNEXPECTED_PARAMETER_LENGTH;
		goto err;
		}
	if (i > buf_len && (buffer = OPENSSL_realloc(buffer, i)) == NULL)
		{
		reason = ERR_R_MALLOC_FAILURE;
		buf_len = i;
		goto err;
		}
	if (!EC_POINT_point2oct(x->group, x->pub_key, POINT_CONVERSION_COMPRESSED, 
				buffer, buf_len, ctx))
		{
		reason = ERR_R_EC_LIB;
		goto err;
		}
	if ((tmp_5 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
		{
		reason = ERR_R_BN_LIB;
		goto err;
		}
	if (tmp_1 != NULL)
		i = BN_num_bytes(tmp_1)*2;
	else
		i=256;
	if ((i + 10) > buf_len && (buffer = OPENSSL_realloc(buffer, i+10)) == NULL)
		{
		reason = ERR_R_MALLOC_FAILURE;
		buf_len = i;
		goto err;
		}
	if (off)
		{
		if (off > 128) off=128;
		memset(str,' ',off);
		}
	if (x->priv_key != NULL)
		{
		if (off && (BIO_write(bp, str, off) <= 0)) goto err;
		if (BIO_printf(bp, "Private-Key: (%d bit)\n", BN_num_bits(tmp_1)) <= 0) goto err;
		}
  
	if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key, buffer, off)) goto err;
	if ((tmp_5 != NULL) && !print(bp, "pub: ", tmp_5, buffer, off)) goto err;
	if ((tmp_1 != NULL) && !print(bp, "P:   ", tmp_1, buffer, off)) goto err;
	if ((tmp_2 != NULL) && !print(bp, "A:   ", tmp_2, buffer, off)) goto err;
	if ((tmp_3 != NULL) && !print(bp, "B:   ", tmp_3, buffer, off)) goto err;
	if ((tmp_4 != NULL) && !print(bp, "Gen: ", tmp_4, buffer, off)) goto err;
	ret=1;
err:
	if (!ret)
 		ECDSAerr(ECDSA_F_ECDSA_PRINT, reason);
	if (tmp_1) BN_free(tmp_1);
	if (tmp_2) BN_free(tmp_2);
	if (tmp_3) BN_free(tmp_3);
	if (tmp_4) BN_free(tmp_4);
	if (tmp_5) BN_free(tmp_5);
	if (ctx)   BN_CTX_free(ctx);
	if (buffer != NULL) OPENSSL_free(buffer);
	return(ret);
	}
#endif

static int print(BIO *bp, const char *number, BIGNUM *num, unsigned char *buf,
	     int off)
	{
	int n,i;
	char str[128];
	const char *neg;

	if (num == NULL) return(1);
	neg=(num->neg)?"-":"";
	if (off)
		{
		if (off > 128) off=128;
		memset(str,' ',off);
		if (BIO_write(bp,str,off) <= 0) return(0);
		}

	if (BN_num_bytes(num) <= BN_BYTES)
		{
		if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
			(unsigned long)num->d[0],neg,(unsigned long)num->d[0])
			<= 0) return(0);
		}
	else
		{
		buf[0]=0;
		if (BIO_printf(bp,"%s%s",number,
			(neg[0] == '-')?" (Negative)":"") <= 0)
			return(0);
		n=BN_bn2bin(num,&buf[1]);
	
		if (buf[1] & 0x80)
			n++;
		else	buf++;

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

#ifndef OPENSSL_NO_DH
#ifndef OPENSSL_NO_FP_API
int DHparams_print_fp(FILE *fp, const DH *x)
	{
	BIO *b;
	int ret;

	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
		return(0);
		}
	BIO_set_fp(b,fp,BIO_NOCLOSE);
	ret=DHparams_print(b, x);
	BIO_free(b);
	return(ret);
	}
#endif

int DHparams_print(BIO *bp, const DH *x)
	{
	unsigned char *m=NULL;
	int reason=ERR_R_BUF_LIB,i,ret=0;

	i=BN_num_bytes(x->p);
	m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
	if (m == NULL)
		{
		reason=ERR_R_MALLOC_FAILURE;
		goto err;
		}

	if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
		BN_num_bits(x->p)) <= 0)
		goto err;
	if (!print(bp,"prime:",x->p,m,4)) goto err;
	if (!print(bp,"generator:",x->g,m,4)) goto err;
	if (x->length != 0)
		{
		if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
			(int)x->length) <= 0) goto err;
		}
	ret=1;
	if (0)
		{
err:
		DHerr(DH_F_DHPARAMS_PRINT,reason);
		}
	if (m != NULL) OPENSSL_free(m);
	return(ret);
	}
#endif

#ifndef OPENSSL_NO_DSA
#ifndef OPENSSL_NO_FP_API
int DSAparams_print_fp(FILE *fp, const DSA *x)
	{
	BIO *b;
	int ret;

	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
		return(0);
		}
	BIO_set_fp(b,fp,BIO_NOCLOSE);
	ret=DSAparams_print(b, x);
	BIO_free(b);
	return(ret);
	}
#endif

int DSAparams_print(BIO *bp, const DSA *x)
	{
	unsigned char *m=NULL;
	int reason=ERR_R_BUF_LIB,i,ret=0;

	i=BN_num_bytes(x->p);
	m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
	if (m == NULL)
		{
		reason=ERR_R_MALLOC_FAILURE;
		goto err;
		}

	if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
		BN_num_bits(x->p)) <= 0)
		goto err;
	if (!print(bp,"p:",x->p,m,4)) goto err;
	if (!print(bp,"q:",x->q,m,4)) goto err;
	if (!print(bp,"g:",x->g,m,4)) goto err;
	ret=1;
err:
	if (m != NULL) OPENSSL_free(m);
	DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
	return(ret);
	}

#endif /* !OPENSSL_NO_DSA */

#ifndef OPENSSL_NO_ECDSA
#ifndef OPENSSL_NO_FP_API
int ECDSAParameters_print_fp(FILE *fp, const ECDSA *x)
	{
	BIO *b;
	int ret;
 
	if ((b=BIO_new(BIO_s_file())) == NULL)
	{
		ECDSAerr(ECDSA_F_ECDSAPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
		return(0);
	}
	BIO_set_fp(b, fp, BIO_NOCLOSE);
	ret = ECDSAParameters_print(b, x);
	BIO_free(b);
	return(ret);
	}
#endif

int ECDSAParameters_print(BIO *bp, const ECDSA *x)
       {
       unsigned char *buffer=NULL;
       int     buf_len;
       int     reason=ERR_R_EC_LIB, i, ret=0;
       BIGNUM  *tmp_1=NULL, *tmp_2=NULL, *tmp_3=NULL, *tmp_4=NULL;
       BN_CTX  *ctx=NULL;
       EC_POINT *point=NULL;
 
       /* TODO: fields other than prime fields */
       if (!x || !x->group)
       {
		reason = ECDSA_R_MISSING_PARAMETERS;
		goto err;
       }
       if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL ||
	   (tmp_3 = BN_new()) == NULL || (ctx = BN_CTX_new()) == NULL)
       {
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
	}
	if (!EC_GROUP_get_curve_GFp(x->group, tmp_1, tmp_2, tmp_3, ctx)) goto err;
	if ((point = EC_GROUP_get0_generator(x->group)) == NULL) goto err;
	buf_len = EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED, NULL, 0, ctx);
	if (!buf_len || (buffer = OPENSSL_malloc(buf_len)) == NULL)
	{
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
	}
	if (!EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED, buffer, buf_len, ctx))
	{
		reason = ERR_R_EC_LIB;
		goto err;
	}
	if ((tmp_4 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
	{
		reason = ERR_R_BN_LIB;
		goto err;
	}
  
	i = BN_num_bits(tmp_1) + 10;
	if (i > buf_len && (buffer = OPENSSL_realloc(buffer, i)) == NULL)
	{
		reason=ERR_R_MALLOC_FAILURE;
		goto err;
	}
 
	if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n", BN_num_bits(tmp_1)) <= 0) goto err;
	if (!print(bp, "Prime p:", tmp_1, buffer, 4)) goto err;
	if (!print(bp, "Curve a:", tmp_2, buffer, 4)) goto err;
	if (!print(bp, "Curve b:", tmp_3, buffer, 4)) goto err;
	if (!print(bp, "Generator ( compressed ) :", tmp_4, buffer, 4)) goto err; 
	ret=1;
err:
	if (tmp_1)  BN_free(tmp_1);
	if (tmp_2)  BN_free(tmp_2);
	if (tmp_3)  BN_free(tmp_3);
	if (tmp_4)  BN_free(tmp_4);
	if (ctx)    BN_CTX_free(ctx);
	if (buffer) OPENSSL_free(buffer);
	ECDSAerr(ECDSA_F_ECDSAPARAMETERS_PRINT, reason);
	return(ret);
	}
  
#endif
Commit	Line	Data
d02b48c6	1	/* crypto/asn1/t_pkey.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	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"
ec577822 BM	61	#include <openssl/buffer.h>
ec577822 BM	62	#include <openssl/bn.h>
cf1b7d96	63	#ifndef OPENSSL_NO_RSA
ec577822	64	#include <openssl/rsa.h>
d02b48c6	65	#endif
cf1b7d96	66	#ifndef OPENSSL_NO_DH
ec577822	67	#include <openssl/dh.h>
d02b48c6	68	#endif
cf1b7d96	69	#ifndef OPENSSL_NO_DSA
ec577822	70	#include <openssl/dsa.h>
d02b48c6	71	#endif
4d94ae00 BM	72	#ifndef OPENSSL_NO_ECDSA
	73	#include <openssl/ecdsa.h>
	74	#endif
d02b48c6	75
e778802f	76	static int print(BIO fp,const char str,BIGNUM *num,
d02b48c6	77	unsigned char *buf,int off);
cf1b7d96 RL	78	#ifndef OPENSSL_NO_RSA
cf1b7d96 RL	79	#ifndef OPENSSL_NO_FP_API
7081f3bd	80	int RSA_print_fp(FILE fp, const RSA x, int off)
4d94ae00 BM	81	{
	82	BIO *b;
	83	int ret;
d02b48c6	84
4d94ae00	85	if ((b=BIO_new(BIO_s_file())) == NULL)
d02b48c6 RE	86	{
d02b48c6 RE	87	RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
4d94ae00	88	return(0);
d02b48c6	89	}
4d94ae00 BM	90	BIO_set_fp(b,fp,BIO_NOCLOSE);
	91	ret=RSA_print(b,x,off);
	92	BIO_free(b);
	93	return(ret);
	94	}
d02b48c6 RE	95	#endif
d02b48c6 RE	96
7081f3bd	97	int RSA_print(BIO bp, const RSA x, int off)
d02b48c6	98	{
e778802f BL	99	char str[128];
e778802f BL	100	const char *s;
d02b48c6 RE	101	unsigned char *m=NULL;
	102	int i,ret=0;
	103
	104	i=RSA_size(x);
26a3a48d	105	m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
d02b48c6 RE	106	if (m == NULL)
	107	{
	108	RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
	109	goto err;
	110	}
	111
	112	if (off)
	113	{
	114	if (off > 128) off=128;
	115	memset(str,' ',off);
	116	}
	117	if (x->d != NULL)
	118	{
	119	if (off && (BIO_write(bp,str,off) <= 0)) goto err;
	120	if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->n))
	121	<= 0) goto err;
	122	}
	123
	124	if (x->d == NULL)
	125	sprintf(str,"Modulus (%d bit):",BN_num_bits(x->n));
	126	else
	127	strcpy(str,"modulus:");
	128	if (!print(bp,str,x->n,m,off)) goto err;
	129	s=(x->d == NULL)?"Exponent:":"publicExponent:";
	130	if (!print(bp,s,x->e,m,off)) goto err;
	131	if (!print(bp,"privateExponent:",x->d,m,off)) goto err;
	132	if (!print(bp,"prime1:",x->p,m,off)) goto err;
	133	if (!print(bp,"prime2:",x->q,m,off)) goto err;
	134	if (!print(bp,"exponent1:",x->dmp1,m,off)) goto err;
	135	if (!print(bp,"exponent2:",x->dmq1,m,off)) goto err;
	136	if (!print(bp,"coefficient:",x->iqmp,m,off)) goto err;
	137	ret=1;
	138	err:
26a3a48d	139	if (m != NULL) OPENSSL_free(m);
d02b48c6 RE	140	return(ret);
d02b48c6 RE	141	}
cf1b7d96	142	#endif /* OPENSSL_NO_RSA */
d02b48c6	143
cf1b7d96 RL	144	#ifndef OPENSSL_NO_DSA
cf1b7d96 RL	145	#ifndef OPENSSL_NO_FP_API
a4aba800	146	int DSA_print_fp(FILE fp, const DSA x, int off)
d02b48c6 RE	147	{
	148	BIO *b;
	149	int ret;
	150
	151	if ((b=BIO_new(BIO_s_file())) == NULL)
	152	{
	153	DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
	154	return(0);
	155	}
	156	BIO_set_fp(b,fp,BIO_NOCLOSE);
	157	ret=DSA_print(b,x,off);
	158	BIO_free(b);
	159	return(ret);
	160	}
	161	#endif
	162
a4aba800	163	int DSA_print(BIO bp, const DSA x, int off)
d02b48c6 RE	164	{
	165	char str[128];
	166	unsigned char *m=NULL;
	167	int i,ret=0;
	168	BIGNUM *bn=NULL;
	169
	170	if (x->p != NULL)
	171	bn=x->p;
	172	else if (x->priv_key != NULL)
	173	bn=x->priv_key;
	174	else if (x->pub_key != NULL)
	175	bn=x->pub_key;
	176
	177	/* larger than needed but what the hell :-) */
	178	if (bn != NULL)
	179	i=BN_num_bytes(bn)*2;
	180	else
	181	i=256;
26a3a48d	182	m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
d02b48c6 RE	183	if (m == NULL)
	184	{
	185	DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
	186	goto err;
	187	}
	188
	189	if (off)
	190	{
	191	if (off > 128) off=128;
	192	memset(str,' ',off);
	193	}
	194	if (x->priv_key != NULL)
	195	{
	196	if (off && (BIO_write(bp,str,off) <= 0)) goto err;
	197	if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
	198	<= 0) goto err;
	199	}
	200
	201	if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
	202	goto err;
	203	if ((x->pub_key != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
	204	goto err;
	205	if ((x->p != NULL) && !print(bp,"P: ",x->p,m,off)) goto err;
	206	if ((x->q != NULL) && !print(bp,"Q: ",x->q,m,off)) goto err;
	207	if ((x->g != NULL) && !print(bp,"G: ",x->g,m,off)) goto err;
	208	ret=1;
	209	err:
26a3a48d	210	if (m != NULL) OPENSSL_free(m);
d02b48c6 RE	211	return(ret);
d02b48c6 RE	212	}
cf1b7d96	213	#endif /* !OPENSSL_NO_DSA */
d02b48c6	214
4d94ae00 BM	215	#ifndef OPENSSL_NO_ECDSA
	216	#ifndef OPENSSL_NO_FP_API
	217	int ECDSA_print_fp(FILE fp, const ECDSA x, int off)
	218	{
	219	BIO *b;
	220	int ret;
	221
	222	if ((b=BIO_new(BIO_s_file())) == NULL)
	223	{
	224	ECDSAerr(ECDSA_F_ECDSA_PRINT_FP, ERR_R_BIO_LIB);
	225	return(0);
	226	}
	227	BIO_set_fp(b, fp, BIO_NOCLOSE);
	228	ret = ECDSA_print(b, x, off);
	229	BIO_free(b);
	230	return(ret);
	231	}
	232	#endif
	233
	234	int ECDSA_print(BIO bp, const ECDSA x, int off)
	235	{
	236	char str[128];
	237	unsigned char *buffer=NULL;
	238	int i, buf_len=0, ret=0, reason=ERR_R_BIO_LIB;
	239	BIGNUM tmp_1=NULL, tmp_2=NULL, *tmp_3=NULL,
	240	tmp_4=NULL, tmp_5=NULL;
	241	BN_CTX *ctx=NULL;
	242	EC_POINT *point=NULL;
	243
	244	/* TODO: fields other than prime fields */
	245
	246	if (!x \|\| !x->group)
	247	{
	248	reason = ECDSA_R_MISSING_PARAMETERS;
	249	goto err;
	250	}
	251	if ((tmp_1 = BN_new()) == NULL \|\| (tmp_2 = BN_new()) == NULL \|\|
	252	(tmp_3 = BN_new()) == NULL \|\| (ctx = BN_CTX_new()) == NULL)
	253	{
	254	reason = ERR_R_MALLOC_FAILURE;
	255	goto err;
	256	}
	257	if (!EC_GROUP_get_curve_GFp(x->group, tmp_1, tmp_2, tmp_3, ctx))
	258	{
	259	reason = ERR_R_EC_LIB;
	260	goto err;
	261	}
	262	if ((point = EC_GROUP_get0_generator(x->group)) == NULL)
	263	{
	264	reason = ERR_R_EC_LIB;
	265	goto err;
	266	}
	267	if ((buf_len = EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED, NULL, 0, ctx)) == 0)
	268	{
	269	reason = ECDSA_R_UNEXPECTED_PARAMETER_LENGTH;
	270	goto err;
	271	}
	272	if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
	273	{
	274	reason = ERR_R_MALLOC_FAILURE;
	275	goto err;
	276	}
	277	if (!EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED,
	278	buffer, buf_len, ctx)) goto err;
279	if ((tmp_4 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
280	{
281	reason = ERR_R_BN_LIB;
282	goto err;
283	}
284	if ((i = EC_POINT_point2oct(x->group, x->pub_key, POINT_CONVERSION_COMPRESSED, NULL, 0, ctx)) == 0)
285	{
286	reason = ECDSA_R_UNEXPECTED_PARAMETER_LENGTH;
287	goto err;
288	}
289	if (i > buf_len && (buffer = OPENSSL_realloc(buffer, i)) == NULL)
290	{
291	reason = ERR_R_MALLOC_FAILURE;
292	buf_len = i;
293	goto err;
294	}
295	if (!EC_POINT_point2oct(x->group, x->pub_key, POINT_CONVERSION_COMPRESSED,
296	buffer, buf_len, ctx))
297	{
298	reason = ERR_R_EC_LIB;
299	goto err;
300	}
301	if ((tmp_5 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
302	{
303	reason = ERR_R_BN_LIB;
304	goto err;
305	}
306	if (tmp_1 != NULL)
307	i = BN_num_bytes(tmp_1)*2;
308	else
309	i=256;
310	if ((i + 10) > buf_len && (buffer = OPENSSL_realloc(buffer, i+10)) == NULL)
311	{
312	reason = ERR_R_MALLOC_FAILURE;
313	buf_len = i;
314	goto err;
315	}
316	if (off)
317	{
318	if (off > 128) off=128;
319	memset(str,' ',off);
320	}
321	if (x->priv_key != NULL)
322	{
323	if (off && (BIO_write(bp, str, off) <= 0)) goto err;
324	if (BIO_printf(bp, "Private-Key: (%d bit)\n", BN_num_bits(tmp_1)) <= 0) goto err;
325	}
326
327	if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key, buffer, off)) goto err;
328	if ((tmp_5 != NULL) && !print(bp, "pub: ", tmp_5, buffer, off)) goto err;
329	if ((tmp_1 != NULL) && !print(bp, "P: ", tmp_1, buffer, off)) goto err;
330	if ((tmp_2 != NULL) && !print(bp, "A: ", tmp_2, buffer, off)) goto err;
331	if ((tmp_3 != NULL) && !print(bp, "B: ", tmp_3, buffer, off)) goto err;
332	if ((tmp_4 != NULL) && !print(bp, "Gen: ", tmp_4, buffer, off)) goto err;
333	ret=1;
334	err:
335	if (!ret)
336	ECDSAerr(ECDSA_F_ECDSA_PRINT, reason);
337	if (tmp_1) BN_free(tmp_1);
338	if (tmp_2) BN_free(tmp_2);
339	if (tmp_3) BN_free(tmp_3);
340	if (tmp_4) BN_free(tmp_4);
341	if (tmp_5) BN_free(tmp_5);
342	if (ctx) BN_CTX_free(ctx);
343	if (buffer != NULL) OPENSSL_free(buffer);
344	return(ret);
345	}
346	#endif
347
6b691a5c UM	348	static int print(BIO bp, const char number, BIGNUM num, unsigned char buf,
6b691a5c UM	349	int off)
d02b48c6 RE	350	{
d02b48c6 RE	351	int n,i;
e778802f BL	352	char str[128];
e778802f BL	353	const char *neg;
d02b48c6 RE	354
	355	if (num == NULL) return(1);
	356	neg=(num->neg)?"-":"";
	357	if (off)
	358	{
	359	if (off > 128) off=128;
	360	memset(str,' ',off);
	361	if (BIO_write(bp,str,off) <= 0) return(0);
	362	}
	363
	364	if (BN_num_bytes(num) <= BN_BYTES)
	365	{
	366	if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
	367	(unsigned long)num->d[0],neg,(unsigned long)num->d[0])
	368	<= 0) return(0);
	369	}
	370	else
	371	{
	372	buf[0]=0;
	373	if (BIO_printf(bp,"%s%s",number,
	374	(neg[0] == '-')?" (Negative)":"") <= 0)
	375	return(0);
	376	n=BN_bn2bin(num,&buf[1]);
	377
	378	if (buf[1] & 0x80)
	379	n++;
	380	else buf++;
	381
	382	for (i=0; i<n; i++)
	383	{
	384	if ((i%15) == 0)
	385	{
	386	str[0]='\n';
	387	memset(&(str[1]),' ',off+4);
	388	if (BIO_write(bp,str,off+1+4) <= 0) return(0);
	389	}
	390	if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
	391	<= 0) return(0);
	392	}
	393	if (BIO_write(bp,"\n",1) <= 0) return(0);
	394	}
	395	return(1);
	396	}
	397
cf1b7d96 RL	398	#ifndef OPENSSL_NO_DH
cf1b7d96 RL	399	#ifndef OPENSSL_NO_FP_API
f971ccb2	400	int DHparams_print_fp(FILE fp, const DH x)
4d94ae00 BM	401	{
	402	BIO *b;
	403	int ret;
d02b48c6	404
4d94ae00	405	if ((b=BIO_new(BIO_s_file())) == NULL)
d02b48c6 RE	406	{
d02b48c6 RE	407	DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
4d94ae00	408	return(0);
d02b48c6	409	}
4d94ae00 BM	410	BIO_set_fp(b,fp,BIO_NOCLOSE);
	411	ret=DHparams_print(b, x);
	412	BIO_free(b);
	413	return(ret);
	414	}
d02b48c6 RE	415	#endif
d02b48c6 RE	416
f971ccb2	417	int DHparams_print(BIO bp, const DH x)
d02b48c6 RE	418	{
	419	unsigned char *m=NULL;
	420	int reason=ERR_R_BUF_LIB,i,ret=0;
	421
	422	i=BN_num_bytes(x->p);
26a3a48d	423	m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
d02b48c6 RE	424	if (m == NULL)
	425	{
	426	reason=ERR_R_MALLOC_FAILURE;
	427	goto err;
	428	}
	429
	430	if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
	431	BN_num_bits(x->p)) <= 0)
	432	goto err;
	433	if (!print(bp,"prime:",x->p,m,4)) goto err;
	434	if (!print(bp,"generator:",x->g,m,4)) goto err;
	435	if (x->length != 0)
	436	{
657e60fa	437	if (BIO_printf(bp," recommended-private-length: %d bits\n",
d02b48c6 RE	438	(int)x->length) <= 0) goto err;
	439	}
	440	ret=1;
58964a49 RE	441	if (0)
58964a49 RE	442	{
d02b48c6	443	err:
58964a49 RE	444	DHerr(DH_F_DHPARAMS_PRINT,reason);
58964a49 RE	445	}
26a3a48d	446	if (m != NULL) OPENSSL_free(m);
d02b48c6 RE	447	return(ret);
	448	}
	449	#endif
	450
cf1b7d96 RL	451	#ifndef OPENSSL_NO_DSA
cf1b7d96 RL	452	#ifndef OPENSSL_NO_FP_API
a4aba800	453	int DSAparams_print_fp(FILE fp, const DSA x)
4d94ae00 BM	454	{
	455	BIO *b;
	456	int ret;
d02b48c6	457
4d94ae00	458	if ((b=BIO_new(BIO_s_file())) == NULL)
d02b48c6 RE	459	{
d02b48c6 RE	460	DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
4d94ae00	461	return(0);
d02b48c6	462	}
4d94ae00 BM	463	BIO_set_fp(b,fp,BIO_NOCLOSE);
	464	ret=DSAparams_print(b, x);
	465	BIO_free(b);
	466	return(ret);
	467	}
d02b48c6 RE	468	#endif
d02b48c6 RE	469
a4aba800	470	int DSAparams_print(BIO bp, const DSA x)
d02b48c6 RE	471	{
	472	unsigned char *m=NULL;
	473	int reason=ERR_R_BUF_LIB,i,ret=0;
	474
	475	i=BN_num_bytes(x->p);
26a3a48d	476	m=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
d02b48c6 RE	477	if (m == NULL)
	478	{
	479	reason=ERR_R_MALLOC_FAILURE;
	480	goto err;
	481	}
	482
	483	if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
	484	BN_num_bits(x->p)) <= 0)
	485	goto err;
	486	if (!print(bp,"p:",x->p,m,4)) goto err;
	487	if (!print(bp,"q:",x->q,m,4)) goto err;
	488	if (!print(bp,"g:",x->g,m,4)) goto err;
	489	ret=1;
	490	err:
26a3a48d	491	if (m != NULL) OPENSSL_free(m);
d02b48c6 RE	492	DSAerr(DSA_F_DSAPARAMS_PRINT,reason);
	493	return(ret);
	494	}
	495
cf1b7d96	496	#endif /* !OPENSSL_NO_DSA */
d02b48c6	497
4d94ae00 BM	498	#ifndef OPENSSL_NO_ECDSA
	499	#ifndef OPENSSL_NO_FP_API
	500	int ECDSAParameters_print_fp(FILE fp, const ECDSA x)
	501	{
	502	BIO *b;
	503	int ret;
	504
	505	if ((b=BIO_new(BIO_s_file())) == NULL)
	506	{
	507	ECDSAerr(ECDSA_F_ECDSAPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
	508	return(0);
	509	}
	510	BIO_set_fp(b, fp, BIO_NOCLOSE);
	511	ret = ECDSAParameters_print(b, x);
	512	BIO_free(b);
	513	return(ret);
	514	}
	515	#endif
	516
	517	int ECDSAParameters_print(BIO bp, const ECDSA x)
	518	{
	519	unsigned char *buffer=NULL;
	520	int buf_len;
	521	int reason=ERR_R_EC_LIB, i, ret=0;
	522	BIGNUM tmp_1=NULL, tmp_2=NULL, tmp_3=NULL, tmp_4=NULL;
	523	BN_CTX *ctx=NULL;
	524	EC_POINT *point=NULL;
	525
	526	/* TODO: fields other than prime fields */
	527	if (!x \|\| !x->group)
	528	{
	529	reason = ECDSA_R_MISSING_PARAMETERS;
	530	goto err;
	531	}
	532	if ((tmp_1 = BN_new()) == NULL \|\| (tmp_2 = BN_new()) == NULL \|\|
	533	(tmp_3 = BN_new()) == NULL \|\| (ctx = BN_CTX_new()) == NULL)
	534	{
	535	reason = ERR_R_MALLOC_FAILURE;
	536	goto err;
	537	}
	538	if (!EC_GROUP_get_curve_GFp(x->group, tmp_1, tmp_2, tmp_3, ctx)) goto err;
	539	if ((point = EC_GROUP_get0_generator(x->group)) == NULL) goto err;
	540	buf_len = EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED, NULL, 0, ctx);
	541	if (!buf_len \|\| (buffer = OPENSSL_malloc(buf_len)) == NULL)
	542	{
	543	reason = ERR_R_MALLOC_FAILURE;
	544	goto err;
	545	}
	546	if (!EC_POINT_point2oct(x->group, point, POINT_CONVERSION_COMPRESSED, buffer, buf_len, ctx))
	547	{
	548	reason = ERR_R_EC_LIB;
	549	goto err;
	550	}
	551	if ((tmp_4 = BN_bin2bn(buffer, buf_len, NULL)) == NULL)
	552	{
	553	reason = ERR_R_BN_LIB;
	554	goto err;
	555	}
	556
	557	i = BN_num_bits(tmp_1) + 10;
	558	if (i > buf_len && (buffer = OPENSSL_realloc(buffer, i)) == NULL)
	559	{
	560	reason=ERR_R_MALLOC_FAILURE;
	561	goto err;
562	}
563
564	if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n", BN_num_bits(tmp_1)) <= 0) goto err;
565	if (!print(bp, "Prime p:", tmp_1, buffer, 4)) goto err;
566	if (!print(bp, "Curve a:", tmp_2, buffer, 4)) goto err;
567	if (!print(bp, "Curve b:", tmp_3, buffer, 4)) goto err;
568	if (!print(bp, "Generator ( compressed ) :", tmp_4, buffer, 4)) goto err;
569	ret=1;
570	err:
571	if (tmp_1) BN_free(tmp_1);
572	if (tmp_2) BN_free(tmp_2);
573	if (tmp_3) BN_free(tmp_3);
574	if (tmp_4) BN_free(tmp_4);
575	if (ctx) BN_CTX_free(ctx);
576	if (buffer) OPENSSL_free(buffer);
577	ECDSAerr(ECDSA_F_ECDSAPARAMETERS_PRINT, reason);
578	return(ret);
579	}
580
581	#endif