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

/* crypto/asn1/n_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"
#ifndef OPENSSL_NO_RSA
# include <openssl/rsa.h>
# include <openssl/objects.h>
# include <openssl/asn1t.h>
# include <openssl/asn1_mac.h>
# include <openssl/evp.h>
# include <openssl/x509.h>

# ifndef OPENSSL_NO_RC4

typedef struct netscape_pkey_st {
    long version;
    X509_ALGOR *algor;
    ASN1_OCTET_STRING *private_key;
} NETSCAPE_PKEY;

typedef struct netscape_encrypted_pkey_st {
    ASN1_OCTET_STRING *os;
    /*
     * This is the same structure as DigestInfo so use it: although this
     * isn't really anything to do with digests.
     */
    X509_SIG *enckey;
} NETSCAPE_ENCRYPTED_PKEY;


ASN1_BROKEN_SEQUENCE(NETSCAPE_ENCRYPTED_PKEY) = {
        ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, os, ASN1_OCTET_STRING),
        ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, enckey, X509_SIG)
} ASN1_BROKEN_SEQUENCE_END(NETSCAPE_ENCRYPTED_PKEY)

DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY)
DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY,NETSCAPE_ENCRYPTED_PKEY)
IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY)

ASN1_SEQUENCE(NETSCAPE_PKEY) = {
        ASN1_SIMPLE(NETSCAPE_PKEY, version, LONG),
        ASN1_SIMPLE(NETSCAPE_PKEY, algor, X509_ALGOR),
        ASN1_SIMPLE(NETSCAPE_PKEY, private_key, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(NETSCAPE_PKEY)

DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_PKEY)
DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_PKEY,NETSCAPE_PKEY)
IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_PKEY)

static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os,
                          int (*cb) (char *buf, int len, const char *prompt,
                                     int verify), int sgckey);

int i2d_Netscape_RSA(const RSA *a, unsigned char **pp,
                     int (*cb) (char *buf, int len, const char *prompt,
                                int verify))
{
    return i2d_RSA_NET(a, pp, cb, 0);
}

int i2d_RSA_NET(const RSA *a, unsigned char **pp,
                int (*cb) (char *buf, int len, const char *prompt,
                           int verify), int sgckey)
{
    int i, j, ret = 0;
    int rsalen, pkeylen, olen;
    NETSCAPE_PKEY *pkey = NULL;
    NETSCAPE_ENCRYPTED_PKEY *enckey = NULL;
    unsigned char buf[256], *zz;
    unsigned char key[EVP_MAX_KEY_LENGTH];
    EVP_CIPHER_CTX ctx;

    if (a == NULL)
        return (0);

    if ((pkey = NETSCAPE_PKEY_new()) == NULL)
        goto err;
    if ((enckey = NETSCAPE_ENCRYPTED_PKEY_new()) == NULL)
        goto err;
    pkey->version = 0;

    pkey->algor->algorithm = OBJ_nid2obj(NID_rsaEncryption);
    if ((pkey->algor->parameter = ASN1_TYPE_new()) == NULL)
        goto err;
    pkey->algor->parameter->type = V_ASN1_NULL;

    rsalen = i2d_RSAPrivateKey(a, NULL);

    /*
     * Fake some octet strings just for the initial length calculation.
     */

    pkey->private_key->length = rsalen;

    pkeylen = i2d_NETSCAPE_PKEY(pkey, NULL);

    enckey->enckey->digest->length = pkeylen;

    enckey->os->length = 11;    /* "private-key" */

    enckey->enckey->algor->algorithm = OBJ_nid2obj(NID_rc4);
    if ((enckey->enckey->algor->parameter = ASN1_TYPE_new()) == NULL)
        goto err;
    enckey->enckey->algor->parameter->type = V_ASN1_NULL;

    if (pp == NULL) {
        olen = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, NULL);
        NETSCAPE_PKEY_free(pkey);
        NETSCAPE_ENCRYPTED_PKEY_free(enckey);
        return olen;
    }

    /* Since its RC4 encrypted length is actual length */
    if ((zz = (unsigned char *)OPENSSL_malloc(rsalen)) == NULL) {
        ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE);
        goto err;
    }

    pkey->private_key->data = zz;
    /* Write out private key encoding */
    i2d_RSAPrivateKey(a, &zz);

    if ((zz = OPENSSL_malloc(pkeylen)) == NULL) {
        ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE);
        goto err;
    }

    if (!ASN1_STRING_set(enckey->os, "private-key", -1)) {
        ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE);
        goto err;
    }
    enckey->enckey->digest->data = zz;
    i2d_NETSCAPE_PKEY(pkey, &zz);

    /* Wipe the private key encoding */
    OPENSSL_cleanse(pkey->private_key->data, rsalen);

    if (cb == NULL)
        cb = EVP_read_pw_string;
    i = cb((char *)buf, 256, "Enter Private Key password:", 1);
    if (i != 0) {
        ASN1err(ASN1_F_I2D_RSA_NET, ASN1_R_BAD_PASSWORD_READ);
        goto err;
    }
    i = strlen((char *)buf);
    /* If the key is used for SGC the algorithm is modified a little. */
    if (sgckey) {
        EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL);
        memcpy(buf + 16, "SGCKEYSALT", 10);
        i = 26;
    }

    EVP_BytesToKey(EVP_rc4(), EVP_md5(), NULL, buf, i, 1, key, NULL);
    OPENSSL_cleanse(buf, 256);

    /* Encrypt private key in place */
    zz = enckey->enckey->digest->data;
    EVP_CIPHER_CTX_init(&ctx);
    EVP_EncryptInit_ex(&ctx, EVP_rc4(), NULL, key, NULL);
    EVP_EncryptUpdate(&ctx, zz, &i, zz, pkeylen);
    EVP_EncryptFinal_ex(&ctx, zz + i, &j);
    EVP_CIPHER_CTX_cleanup(&ctx);

    ret = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, pp);
 err:
    NETSCAPE_ENCRYPTED_PKEY_free(enckey);
    NETSCAPE_PKEY_free(pkey);
    return (ret);
}

RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length,
                      int (*cb) (char *buf, int len, const char *prompt,
                                 int verify))
{
    return d2i_RSA_NET(a, pp, length, cb, 0);
}

RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length,
                 int (*cb) (char *buf, int len, const char *prompt,
                            int verify), int sgckey)
{
    RSA *ret = NULL;
    const unsigned char *p;
    NETSCAPE_ENCRYPTED_PKEY *enckey = NULL;

    p = *pp;

    enckey = d2i_NETSCAPE_ENCRYPTED_PKEY(NULL, &p, length);
    if (!enckey) {
        ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_DECODING_ERROR);
        return NULL;
    }

    if ((enckey->os->length != 11) || (strncmp("private-key",
                                               (char *)enckey->os->data,
                                               11) != 0)) {
        ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_PRIVATE_KEY_HEADER_MISSING);
        NETSCAPE_ENCRYPTED_PKEY_free(enckey);
        return NULL;
    }
    if (OBJ_obj2nid(enckey->enckey->algor->algorithm) != NID_rc4) {
        ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_UNSUPPORTED_ENCRYPTION_ALGORITHM);
        goto err;
    }
    if (cb == NULL)
        cb = EVP_read_pw_string;
    if ((ret = d2i_RSA_NET_2(a, enckey->enckey->digest, cb, sgckey)) == NULL)
        goto err;

    *pp = p;

 err:
    NETSCAPE_ENCRYPTED_PKEY_free(enckey);
    return ret;

}

static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os,
                          int (*cb) (char *buf, int len, const char *prompt,
                                     int verify), int sgckey)
{
    NETSCAPE_PKEY *pkey = NULL;
    RSA *ret = NULL;
    int i, j;
    unsigned char buf[256];
    const unsigned char *zz;
    unsigned char key[EVP_MAX_KEY_LENGTH];
    EVP_CIPHER_CTX ctx;

    i = cb((char *)buf, 256, "Enter Private Key password:", 0);
    if (i != 0) {
        ASN1err(ASN1_F_D2I_RSA_NET_2, ASN1_R_BAD_PASSWORD_READ);
        goto err;
    }

    i = strlen((char *)buf);
    if (sgckey) {
        EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL);
        memcpy(buf + 16, "SGCKEYSALT", 10);
        i = 26;
    }

    EVP_BytesToKey(EVP_rc4(), EVP_md5(), NULL, buf, i, 1, key, NULL);
    OPENSSL_cleanse(buf, 256);

    EVP_CIPHER_CTX_init(&ctx);
    EVP_DecryptInit_ex(&ctx, EVP_rc4(), NULL, key, NULL);
    EVP_DecryptUpdate(&ctx, os->data, &i, os->data, os->length);
    EVP_DecryptFinal_ex(&ctx, &(os->data[i]), &j);
    EVP_CIPHER_CTX_cleanup(&ctx);
    os->length = i + j;

    zz = os->data;

    if ((pkey = d2i_NETSCAPE_PKEY(NULL, &zz, os->length)) == NULL) {
        ASN1err(ASN1_F_D2I_RSA_NET_2,
                ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY);
        goto err;
    }

    zz = pkey->private_key->data;
    if ((ret = d2i_RSAPrivateKey(a, &zz, pkey->private_key->length)) == NULL) {
        ASN1err(ASN1_F_D2I_RSA_NET_2, ASN1_R_UNABLE_TO_DECODE_RSA_KEY);
        goto err;
    }
 err:
    NETSCAPE_PKEY_free(pkey);
    return (ret);
}

# endif                         /* OPENSSL_NO_RC4 */

#else                           /* !OPENSSL_NO_RSA */

# if PEDANTIC
static void *dummy = &dummy;
# endif

#endif
Commit	Line	Data
d02b48c6	1	/* crypto/asn1/n_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.
40720ce3	8	*
d02b48c6 RE	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).
40720ce3	15	*
d02b48c6 RE	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.
40720ce3	22	*
d02b48c6 RE	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 :-).
40720ce3	37	* 4. If you include any Windows specific code (or a derivative thereof) from
d02b48c6 RE	38	* the apps directory (application code) you must include an acknowledgement:
d02b48c6 RE	39	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40720ce3	40	*
d02b48c6 RE	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.
40720ce3	52	*
d02b48c6 RE	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"
536b73e7	61	#ifndef OPENSSL_NO_RSA
40720ce3 MC	62	# include <openssl/rsa.h>
	63	# include <openssl/objects.h>
	64	# include <openssl/asn1t.h>
	65	# include <openssl/asn1_mac.h>
	66	# include <openssl/evp.h>
	67	# include <openssl/x509.h>
	68
	69	# ifndef OPENSSL_NO_RC4
	70
	71	typedef struct netscape_pkey_st {
	72	long version;
	73	X509_ALGOR *algor;
	74	ASN1_OCTET_STRING *private_key;
	75	} NETSCAPE_PKEY;
	76
	77	typedef struct netscape_encrypted_pkey_st {
	78	ASN1_OCTET_STRING *os;
	79	/*
	80	* This is the same structure as DigestInfo so use it: although this
	81	* isn't really anything to do with digests.
	82	*/
	83	X509_SIG *enckey;
	84	} NETSCAPE_ENCRYPTED_PKEY;
9d6b1ce6 DSH	85
	86
	87	ASN1_BROKEN_SEQUENCE(NETSCAPE_ENCRYPTED_PKEY) = {
40720ce3 MC	88	ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, os, ASN1_OCTET_STRING),
40720ce3 MC	89	ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, enckey, X509_SIG)
d339187b	90	} ASN1_BROKEN_SEQUENCE_END(NETSCAPE_ENCRYPTED_PKEY)
9d6b1ce6	91
65ee74fb LJ	92	DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY)
65ee74fb LJ	93	DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY,NETSCAPE_ENCRYPTED_PKEY)
9d6b1ce6 DSH	94	IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY)
	95
	96	ASN1_SEQUENCE(NETSCAPE_PKEY) = {
40720ce3 MC	97	ASN1_SIMPLE(NETSCAPE_PKEY, version, LONG),
	98	ASN1_SIMPLE(NETSCAPE_PKEY, algor, X509_ALGOR),
	99	ASN1_SIMPLE(NETSCAPE_PKEY, private_key, ASN1_OCTET_STRING)
d339187b	100	} ASN1_SEQUENCE_END(NETSCAPE_PKEY)
9d6b1ce6	101
65ee74fb LJ	102	DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_PKEY)
65ee74fb LJ	103	DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_PKEY,NETSCAPE_PKEY)
9d6b1ce6 DSH	104	IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_PKEY)
	105
	106	static RSA d2i_RSA_NET_2(RSA a, ASN1_OCTET_STRING os,
40720ce3 MC	107	int (cb) (char buf, int len, const char *prompt,
40720ce3 MC	108	int verify), int sgckey);
f5d7a031	109
41a15c4f	110	int i2d_Netscape_RSA(const RSA a, unsigned char *pp,
40720ce3 MC	111	int (cb) (char buf, int len, const char *prompt,
40720ce3 MC	112	int verify))
d3ed8ceb	113	{
40720ce3	114	return i2d_RSA_NET(a, pp, cb, 0);
d3ed8ceb DSH	115	}
d3ed8ceb DSH	116
41a15c4f	117	int i2d_RSA_NET(const RSA a, unsigned char *pp,
40720ce3 MC	118	int (cb) (char buf, int len, const char *prompt,
	119	int verify), int sgckey)
	120	{
	121	int i, j, ret = 0;
	122	int rsalen, pkeylen, olen;
	123	NETSCAPE_PKEY *pkey = NULL;
	124	NETSCAPE_ENCRYPTED_PKEY *enckey = NULL;
	125	unsigned char buf[256], *zz;
	126	unsigned char key[EVP_MAX_KEY_LENGTH];
	127	EVP_CIPHER_CTX ctx;
	128
	129	if (a == NULL)
	130	return (0);
	131
	132	if ((pkey = NETSCAPE_PKEY_new()) == NULL)
	133	goto err;
	134	if ((enckey = NETSCAPE_ENCRYPTED_PKEY_new()) == NULL)
	135	goto err;
	136	pkey->version = 0;
	137
	138	pkey->algor->algorithm = OBJ_nid2obj(NID_rsaEncryption);
	139	if ((pkey->algor->parameter = ASN1_TYPE_new()) == NULL)
	140	goto err;
	141	pkey->algor->parameter->type = V_ASN1_NULL;
	142
	143	rsalen = i2d_RSAPrivateKey(a, NULL);
	144
	145	/*
	146	* Fake some octet strings just for the initial length calculation.
	147	*/
	148
	149	pkey->private_key->length = rsalen;
	150
	151	pkeylen = i2d_NETSCAPE_PKEY(pkey, NULL);
	152
	153	enckey->enckey->digest->length = pkeylen;
	154
	155	enckey->os->length = 11; /* "private-key" */
	156
	157	enckey->enckey->algor->algorithm = OBJ_nid2obj(NID_rc4);
	158	if ((enckey->enckey->algor->parameter = ASN1_TYPE_new()) == NULL)
	159	goto err;
	160	enckey->enckey->algor->parameter->type = V_ASN1_NULL;
	161
	162	if (pp == NULL) {
	163	olen = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, NULL);
	164	NETSCAPE_PKEY_free(pkey);
	165	NETSCAPE_ENCRYPTED_PKEY_free(enckey);
	166	return olen;
	167	}
	168
	169	/* Since its RC4 encrypted length is actual length */
	170	if ((zz = (unsigned char *)OPENSSL_malloc(rsalen)) == NULL) {
	171	ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE);
	172	goto err;
	173	}
	174
	175	pkey->private_key->data = zz;
	176	/* Write out private key encoding */
	177	i2d_RSAPrivateKey(a, &zz);
	178
	179	if ((zz = OPENSSL_malloc(pkeylen)) == NULL) {
	180	ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE);
	181	goto err;
182	}
183
184	if (!ASN1_STRING_set(enckey->os, "private-key", -1)) {
185	ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE);
186	goto err;
187	}
188	enckey->enckey->digest->data = zz;
189	i2d_NETSCAPE_PKEY(pkey, &zz);
190
191	/* Wipe the private key encoding */
192	OPENSSL_cleanse(pkey->private_key->data, rsalen);
193
194	if (cb == NULL)
195	cb = EVP_read_pw_string;
196	i = cb((char *)buf, 256, "Enter Private Key password:", 1);
197	if (i != 0) {
198	ASN1err(ASN1_F_I2D_RSA_NET, ASN1_R_BAD_PASSWORD_READ);
199	goto err;
200	}
201	i = strlen((char *)buf);
202	/* If the key is used for SGC the algorithm is modified a little. */
203	if (sgckey) {
204	EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL);
205	memcpy(buf + 16, "SGCKEYSALT", 10);
206	i = 26;
207	}
208
209	EVP_BytesToKey(EVP_rc4(), EVP_md5(), NULL, buf, i, 1, key, NULL);
210	OPENSSL_cleanse(buf, 256);
211
212	/* Encrypt private key in place */
213	zz = enckey->enckey->digest->data;
214	EVP_CIPHER_CTX_init(&ctx);
215	EVP_EncryptInit_ex(&ctx, EVP_rc4(), NULL, key, NULL);
216	EVP_EncryptUpdate(&ctx, zz, &i, zz, pkeylen);
217	EVP_EncryptFinal_ex(&ctx, zz + i, &j);
218	EVP_CIPHER_CTX_cleanup(&ctx);
219
220	ret = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, pp);
221	err:
222	NETSCAPE_ENCRYPTED_PKEY_free(enckey);
223	NETSCAPE_PKEY_free(pkey);
224	return (ret);
225	}
d3ed8ceb	226
41a15c4f	227	RSA d2i_Netscape_RSA(RSA a, const unsigned char *pp, long length,
40720ce3 MC	228	int (cb) (char buf, int len, const char *prompt,
40720ce3 MC	229	int verify))
d3ed8ceb	230	{
40720ce3	231	return d2i_RSA_NET(a, pp, length, cb, 0);
d3ed8ceb DSH	232	}
d3ed8ceb DSH	233
41a15c4f	234	RSA d2i_RSA_NET(RSA a, const unsigned char *pp, long length,
40720ce3 MC	235	int (cb) (char buf, int len, const char *prompt,
	236	int verify), int sgckey)
	237	{
	238	RSA *ret = NULL;
	239	const unsigned char *p;
	240	NETSCAPE_ENCRYPTED_PKEY *enckey = NULL;
	241
	242	p = *pp;
	243
	244	enckey = d2i_NETSCAPE_ENCRYPTED_PKEY(NULL, &p, length);
	245	if (!enckey) {
	246	ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_DECODING_ERROR);
	247	return NULL;
	248	}
	249
	250	if ((enckey->os->length != 11) \|\| (strncmp("private-key",
	251	(char *)enckey->os->data,
	252	11) != 0)) {
	253	ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_PRIVATE_KEY_HEADER_MISSING);
	254	NETSCAPE_ENCRYPTED_PKEY_free(enckey);
	255	return NULL;
	256	}
	257	if (OBJ_obj2nid(enckey->enckey->algor->algorithm) != NID_rc4) {
	258	ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_UNSUPPORTED_ENCRYPTION_ALGORITHM);
	259	goto err;
	260	}
	261	if (cb == NULL)
	262	cb = EVP_read_pw_string;
	263	if ((ret = d2i_RSA_NET_2(a, enckey->enckey->digest, cb, sgckey)) == NULL)
	264	goto err;
	265
	266	*pp = p;
	267
	268	err:
	269	NETSCAPE_ENCRYPTED_PKEY_free(enckey);
	270	return ret;
	271
	272	}
d3ed8ceb	273
9d6b1ce6	274	static RSA d2i_RSA_NET_2(RSA a, ASN1_OCTET_STRING os,
40720ce3 MC	275	int (cb) (char buf, int len, const char *prompt,
	276	int verify), int sgckey)
	277	{
	278	NETSCAPE_PKEY *pkey = NULL;
	279	RSA *ret = NULL;
	280	int i, j;
	281	unsigned char buf[256];
	282	const unsigned char *zz;
	283	unsigned char key[EVP_MAX_KEY_LENGTH];
	284	EVP_CIPHER_CTX ctx;
	285
	286	i = cb((char *)buf, 256, "Enter Private Key password:", 0);
	287	if (i != 0) {
	288	ASN1err(ASN1_F_D2I_RSA_NET_2, ASN1_R_BAD_PASSWORD_READ);
	289	goto err;
	290	}
	291
	292	i = strlen((char *)buf);
	293	if (sgckey) {
	294	EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL);
	295	memcpy(buf + 16, "SGCKEYSALT", 10);
	296	i = 26;
	297	}
	298
	299	EVP_BytesToKey(EVP_rc4(), EVP_md5(), NULL, buf, i, 1, key, NULL);
	300	OPENSSL_cleanse(buf, 256);
	301
	302	EVP_CIPHER_CTX_init(&ctx);
	303	EVP_DecryptInit_ex(&ctx, EVP_rc4(), NULL, key, NULL);
	304	EVP_DecryptUpdate(&ctx, os->data, &i, os->data, os->length);
	305	EVP_DecryptFinal_ex(&ctx, &(os->data[i]), &j);
	306	EVP_CIPHER_CTX_cleanup(&ctx);
	307	os->length = i + j;
	308
	309	zz = os->data;
	310
	311	if ((pkey = d2i_NETSCAPE_PKEY(NULL, &zz, os->length)) == NULL) {
	312	ASN1err(ASN1_F_D2I_RSA_NET_2,
	313	ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY);
	314	goto err;
	315	}
	316
	317	zz = pkey->private_key->data;
	318	if ((ret = d2i_RSAPrivateKey(a, &zz, pkey->private_key->length)) == NULL) {
	319	ASN1err(ASN1_F_D2I_RSA_NET_2, ASN1_R_UNABLE_TO_DECODE_RSA_KEY);
	320	goto err;
	321	}
	322	err:
	323	NETSCAPE_PKEY_free(pkey);
	324	return (ret);
	325	}
	326
	327	# endif /* OPENSSL_NO_RC4 */
	328
	329	#else /* !OPENSSL_NO_RSA */
752d706a BL	330
752d706a BL	331	# if PEDANTIC
40720ce3	332	static void *dummy = &dummy;
752d706a BL	333	# endif
752d706a BL	334
f5d7a031	335	#endif