[thirdparty/openssl.git] / crypto / pem / pem_pkey.c

/* crypto/pem/pem_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/objects.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/pkcs12.h>
#include <openssl/pem.h>
#include "asn1_locl.h"

int pem_check_suffix(const char *pem_str, const char *suffix);

EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
	{
	char *nm=NULL;
	const unsigned char *p=NULL;
	unsigned char *data=NULL;
	long len;
	int slen;
	EVP_PKEY *ret=NULL;

	if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u))
		return NULL;
	p = data;

	if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0)
		{
		const EVP_PKEY_ASN1_METHOD *ameth;
		ameth = EVP_PKEY_asn1_find_str(nm, slen);
		if (!ameth || !ameth->old_priv_decode)
			goto p8err;
		ret=d2i_PrivateKey(ameth->pkey_id,x,&p,len);
		}
	else if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
		PKCS8_PRIV_KEY_INFO *p8inf;
		p8inf=d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len);
		if(!p8inf) goto p8err;
		ret = EVP_PKCS82PKEY(p8inf);
		if(x) {
			if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
			*x = ret;
		}
		PKCS8_PRIV_KEY_INFO_free(p8inf);
	} else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
		PKCS8_PRIV_KEY_INFO *p8inf;
		X509_SIG *p8;
		int klen;
		char psbuf[PEM_BUFSIZE];
		p8 = d2i_X509_SIG(NULL, &p, len);
		if(!p8) goto p8err;
		if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
		else klen=PEM_def_callback(psbuf,PEM_BUFSIZE,0,u);
		if (klen <= 0) {
			PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY,
					PEM_R_BAD_PASSWORD_READ);
			X509_SIG_free(p8);
			goto err;
		}
		p8inf = PKCS8_decrypt(p8, psbuf, klen);
		X509_SIG_free(p8);
		if(!p8inf) goto p8err;
		ret = EVP_PKCS82PKEY(p8inf);
		if(x) {
			if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
			*x = ret;
		}
		PKCS8_PRIV_KEY_INFO_free(p8inf);
	}
p8err:
	if (ret == NULL)
		PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY,ERR_R_ASN1_LIB);
err:
	OPENSSL_free(nm);
	OPENSSL_free(data);
	return(ret);
	}

int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
                                               unsigned char *kstr, int klen,
                                               pem_password_cb *cb, void *u)
	{
	char pem_str[80];
	if (!x->ameth || !x->ameth->old_priv_encode)
		return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
							(char *)kstr, klen,
							cb, u);

	BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
	return PEM_ASN1_write_bio((i2d_of_void *)openssl_fcast(i2d_PrivateKey),
				pem_str,bp,(char *)x,enc,kstr,klen,cb,u);
	}


#ifndef OPENSSL_NO_FP_API
EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
	{
        BIO *b;
        EVP_PKEY *ret;

        if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		PEMerr(PEM_F_PEM_READ_PRIVATEKEY,ERR_R_BUF_LIB);
                return(0);
		}
        BIO_set_fp(b,fp,BIO_NOCLOSE);
        ret=PEM_read_bio_PrivateKey(b,x,cb,u);
        BIO_free(b);
        return(ret);
	}

int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
                                               unsigned char *kstr, int klen,
                                               pem_password_cb *cb, void *u)
	{
        BIO *b;
        int ret;

        if ((b=BIO_new_fp(fp, BIO_NOCLOSE)) == NULL)
		{
		PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY,ERR_R_BUF_LIB);
                return 0;
		}
        ret=PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
        BIO_free(b);
        return ret;
	}

#endif
Commit	Line	Data
1241126a DSH	1	/* crypto/pem/pem_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/objects.h>
	63	#include <openssl/evp.h>
	64	#include <openssl/rand.h>
65	#include <openssl/x509.h>
66	#include <openssl/pkcs12.h>
67	#include <openssl/pem.h>
e4263314	68	#include "asn1_locl.h"
1241126a	69
e4263314	70	int pem_check_suffix(const char pem_str, const char suffix);
1241126a DSH	71
	72	EVP_PKEY PEM_read_bio_PrivateKey(BIO bp, EVP_PKEY *x, pem_password_cb cb, void *u)
	73	{
	74	char *nm=NULL;
875a644a RL	75	const unsigned char *p=NULL;
875a644a RL	76	unsigned char *data=NULL;
1241126a	77	long len;
e4263314	78	int slen;
1241126a DSH	79	EVP_PKEY *ret=NULL;
	80
	81	if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u))
	82	return NULL;
	83	p = data;
	84
e4263314 DSH	85	if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0)
	86	{
	87	const EVP_PKEY_ASN1_METHOD *ameth;
	88	ameth = EVP_PKEY_asn1_find_str(nm, slen);
	89	if (!ameth \|\| !ameth->old_priv_decode)
	90	goto p8err;
	91	ret=d2i_PrivateKey(ameth->pkey_id,x,&p,len);
	92	}
1241126a DSH	93	else if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
	94	PKCS8_PRIV_KEY_INFO *p8inf;
	95	p8inf=d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len);
9f353dd6	96	if(!p8inf) goto p8err;
1241126a	97	ret = EVP_PKCS82PKEY(p8inf);
f727266a RL	98	if(x) {
	99	if(x) EVP_PKEY_free((EVP_PKEY )*x);
	100	*x = ret;
	101	}
1241126a DSH	102	PKCS8_PRIV_KEY_INFO_free(p8inf);
	103	} else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
	104	PKCS8_PRIV_KEY_INFO *p8inf;
	105	X509_SIG *p8;
	106	int klen;
	107	char psbuf[PEM_BUFSIZE];
	108	p8 = d2i_X509_SIG(NULL, &p, len);
	109	if(!p8) goto p8err;
	110	if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
	111	else klen=PEM_def_callback(psbuf,PEM_BUFSIZE,0,u);
	112	if (klen <= 0) {
8afca8d9	113	PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY,
1241126a	114	PEM_R_BAD_PASSWORD_READ);
d735c649	115	X509_SIG_free(p8);
1241126a DSH	116	goto err;
	117	}
	118	p8inf = PKCS8_decrypt(p8, psbuf, klen);
	119	X509_SIG_free(p8);
	120	if(!p8inf) goto p8err;
	121	ret = EVP_PKCS82PKEY(p8inf);
	122	if(x) {
	123	if(x) EVP_PKEY_free((EVP_PKEY )*x);
	124	*x = ret;
	125	}
	126	PKCS8_PRIV_KEY_INFO_free(p8inf);
	127	}
	128	p8err:
	129	if (ret == NULL)
8afca8d9	130	PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY,ERR_R_ASN1_LIB);
1241126a DSH	131	err:
	132	OPENSSL_free(nm);
	133	OPENSSL_free(data);
	134	return(ret);
	135	}
	136
e4263314 DSH	137	int PEM_write_bio_PrivateKey(BIO bp, EVP_PKEY x, const EVP_CIPHER *enc,
	138	unsigned char *kstr, int klen,
	139	pem_password_cb cb, void u)
	140	{
	141	char pem_str[80];
	142	if (!x->ameth \|\| !x->ameth->old_priv_encode)
	143	return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
	144	(char *)kstr, klen,
	145	cb, u);
	146
	147	BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
	148	return PEM_ASN1_write_bio((i2d_of_void *)openssl_fcast(i2d_PrivateKey),
	149	pem_str,bp,(char *)x,enc,kstr,klen,cb,u);
	150	}
	151
	152
1241126a DSH	153	#ifndef OPENSSL_NO_FP_API
	154	EVP_PKEY PEM_read_PrivateKey(FILE fp, EVP_PKEY *x, pem_password_cb cb, void *u)
	155	{
	156	BIO *b;
	157	EVP_PKEY *ret;
	158
	159	if ((b=BIO_new(BIO_s_file())) == NULL)
	160	{
8afca8d9	161	PEMerr(PEM_F_PEM_READ_PRIVATEKEY,ERR_R_BUF_LIB);
1241126a DSH	162	return(0);
	163	}
	164	BIO_set_fp(b,fp,BIO_NOCLOSE);
	165	ret=PEM_read_bio_PrivateKey(b,x,cb,u);
	166	BIO_free(b);
	167	return(ret);
	168	}
e4263314 DSH	169
	170	int PEM_write_PrivateKey(FILE fp, EVP_PKEY x, const EVP_CIPHER *enc,
	171	unsigned char *kstr, int klen,
	172	pem_password_cb cb, void u)
	173	{
	174	BIO *b;
	175	int ret;
	176
	177	if ((b=BIO_new_fp(fp, BIO_NOCLOSE)) == NULL)
	178	{
	179	PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY,ERR_R_BUF_LIB);
	180	return 0;
	181	}
	182	ret=PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
	183	BIO_free(b);
	184	return ret;
	185	}
	186
1241126a	187	#endif