fbeaa3c47d
during "make errors" and thus during "make update". Fix lots of bugs that util/ck_errf.pl can detect automatically. Various others of these are still left to fix; that's why "make update" will complain loudly when run now.
344 lines
10 KiB
C
344 lines
10 KiB
C
/* crypto/asn1/n_pkey.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#ifndef OPENSSL_NO_RSA
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#include <openssl/rsa.h>
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#include <openssl/objects.h>
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#include <openssl/asn1t.h>
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#include <openssl/asn1_mac.h>
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#ifndef OPENSSL_NO_RC4
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typedef struct netscape_pkey_st
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{
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long version;
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X509_ALGOR *algor;
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ASN1_OCTET_STRING *private_key;
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} NETSCAPE_PKEY;
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typedef struct netscape_encrypted_pkey_st
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{
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ASN1_OCTET_STRING *os;
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/* This is the same structure as DigestInfo so use it:
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* although this isn't really anything to do with
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* digests.
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*/
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X509_SIG *enckey;
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} NETSCAPE_ENCRYPTED_PKEY;
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ASN1_BROKEN_SEQUENCE(NETSCAPE_ENCRYPTED_PKEY) = {
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ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, os, ASN1_OCTET_STRING),
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ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, enckey, X509_SIG)
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} ASN1_BROKEN_SEQUENCE_END(NETSCAPE_ENCRYPTED_PKEY)
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DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY)
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DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY,NETSCAPE_ENCRYPTED_PKEY)
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IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY)
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ASN1_SEQUENCE(NETSCAPE_PKEY) = {
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ASN1_SIMPLE(NETSCAPE_PKEY, version, LONG),
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ASN1_SIMPLE(NETSCAPE_PKEY, algor, X509_ALGOR),
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ASN1_SIMPLE(NETSCAPE_PKEY, private_key, ASN1_OCTET_STRING)
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} ASN1_SEQUENCE_END(NETSCAPE_PKEY)
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DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_PKEY)
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DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_PKEY,NETSCAPE_PKEY)
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IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_PKEY)
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static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os,
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int (*cb)(char *buf, int len, const char *prompt,
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int verify),
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int sgckey);
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int i2d_Netscape_RSA(const RSA *a, unsigned char **pp,
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int (*cb)(char *buf, int len, const char *prompt,
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int verify))
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{
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return i2d_RSA_NET(a, pp, cb, 0);
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}
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int i2d_RSA_NET(const RSA *a, unsigned char **pp,
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int (*cb)(char *buf, int len, const char *prompt, int verify),
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int sgckey)
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{
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int i, j, ret = 0;
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int rsalen, pkeylen, olen;
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NETSCAPE_PKEY *pkey = NULL;
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NETSCAPE_ENCRYPTED_PKEY *enckey = NULL;
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unsigned char buf[256],*zz;
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unsigned char key[EVP_MAX_KEY_LENGTH];
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EVP_CIPHER_CTX ctx;
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if (a == NULL) return(0);
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if ((pkey=NETSCAPE_PKEY_new()) == NULL) goto err;
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if ((enckey=NETSCAPE_ENCRYPTED_PKEY_new()) == NULL) goto err;
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pkey->version = 0;
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pkey->algor->algorithm=OBJ_nid2obj(NID_rsaEncryption);
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if ((pkey->algor->parameter=ASN1_TYPE_new()) == NULL) goto err;
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pkey->algor->parameter->type=V_ASN1_NULL;
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rsalen = i2d_RSAPrivateKey(a, NULL);
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/* Fake some octet strings just for the initial length
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* calculation.
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*/
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pkey->private_key->length=rsalen;
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pkeylen=i2d_NETSCAPE_PKEY(pkey,NULL);
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enckey->enckey->digest->length = pkeylen;
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enckey->os->length = 11; /* "private-key" */
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enckey->enckey->algor->algorithm=OBJ_nid2obj(NID_rc4);
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if ((enckey->enckey->algor->parameter=ASN1_TYPE_new()) == NULL) goto err;
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enckey->enckey->algor->parameter->type=V_ASN1_NULL;
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if (pp == NULL)
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{
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olen = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, NULL);
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NETSCAPE_PKEY_free(pkey);
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NETSCAPE_ENCRYPTED_PKEY_free(enckey);
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return olen;
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}
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/* Since its RC4 encrypted length is actual length */
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if ((zz=(unsigned char *)OPENSSL_malloc(rsalen)) == NULL)
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{
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ASN1err(ASN1_F_I2D_RSA_NET,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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pkey->private_key->data = zz;
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/* Write out private key encoding */
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i2d_RSAPrivateKey(a,&zz);
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if ((zz=OPENSSL_malloc(pkeylen)) == NULL)
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{
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ASN1err(ASN1_F_I2D_RSA_NET,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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if (!ASN1_STRING_set(enckey->os, "private-key", -1))
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{
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ASN1err(ASN1_F_I2D_RSA_NET,ERR_R_MALLOC_FAILURE);
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goto err;
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}
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enckey->enckey->digest->data = zz;
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i2d_NETSCAPE_PKEY(pkey,&zz);
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/* Wipe the private key encoding */
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OPENSSL_cleanse(pkey->private_key->data, rsalen);
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if (cb == NULL)
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cb=EVP_read_pw_string;
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i=cb((char *)buf,256,"Enter Private Key password:",1);
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if (i != 0)
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{
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ASN1err(ASN1_F_I2D_RSA_NET,ASN1_R_BAD_PASSWORD_READ);
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goto err;
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}
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i = strlen((char *)buf);
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/* If the key is used for SGC the algorithm is modified a little. */
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if(sgckey) {
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EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL);
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memcpy(buf + 16, "SGCKEYSALT", 10);
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i = 26;
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}
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EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,i,1,key,NULL);
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OPENSSL_cleanse(buf,256);
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/* Encrypt private key in place */
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zz = enckey->enckey->digest->data;
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EVP_CIPHER_CTX_init(&ctx);
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EVP_EncryptInit_ex(&ctx,EVP_rc4(),NULL,key,NULL);
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EVP_EncryptUpdate(&ctx,zz,&i,zz,pkeylen);
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EVP_EncryptFinal_ex(&ctx,zz + i,&j);
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EVP_CIPHER_CTX_cleanup(&ctx);
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ret = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, pp);
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err:
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NETSCAPE_ENCRYPTED_PKEY_free(enckey);
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NETSCAPE_PKEY_free(pkey);
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return(ret);
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}
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RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length,
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int (*cb)(char *buf, int len, const char *prompt,
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int verify))
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{
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return d2i_RSA_NET(a, pp, length, cb, 0);
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}
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RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length,
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int (*cb)(char *buf, int len, const char *prompt, int verify),
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int sgckey)
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{
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RSA *ret=NULL;
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const unsigned char *p, *kp;
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NETSCAPE_ENCRYPTED_PKEY *enckey = NULL;
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p = *pp;
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enckey = d2i_NETSCAPE_ENCRYPTED_PKEY(NULL, &p, length);
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if(!enckey) {
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ASN1err(ASN1_F_D2I_RSA_NET,ASN1_R_DECODING_ERROR);
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return NULL;
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}
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if ((enckey->os->length != 11) || (strncmp("private-key",
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(char *)enckey->os->data,11) != 0))
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{
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ASN1err(ASN1_F_D2I_RSA_NET,ASN1_R_PRIVATE_KEY_HEADER_MISSING);
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NETSCAPE_ENCRYPTED_PKEY_free(enckey);
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return NULL;
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}
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if (OBJ_obj2nid(enckey->enckey->algor->algorithm) != NID_rc4)
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{
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ASN1err(ASN1_F_D2I_RSA_NET,ASN1_R_UNSUPPORTED_ENCRYPTION_ALGORITHM);
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goto err;
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}
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kp = enckey->enckey->digest->data;
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if (cb == NULL)
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cb=EVP_read_pw_string;
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if ((ret=d2i_RSA_NET_2(a, enckey->enckey->digest,cb, sgckey)) == NULL) goto err;
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*pp = p;
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err:
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NETSCAPE_ENCRYPTED_PKEY_free(enckey);
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return ret;
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}
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static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os,
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int (*cb)(char *buf, int len, const char *prompt,
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int verify), int sgckey)
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{
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NETSCAPE_PKEY *pkey=NULL;
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RSA *ret=NULL;
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int i,j;
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unsigned char buf[256];
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const unsigned char *zz;
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unsigned char key[EVP_MAX_KEY_LENGTH];
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EVP_CIPHER_CTX ctx;
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i=cb((char *)buf,256,"Enter Private Key password:",0);
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if (i != 0)
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{
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ASN1err(ASN1_F_D2I_RSA_NET_2,ASN1_R_BAD_PASSWORD_READ);
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goto err;
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}
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i = strlen((char *)buf);
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if(sgckey){
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EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL);
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memcpy(buf + 16, "SGCKEYSALT", 10);
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i = 26;
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}
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EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,i,1,key,NULL);
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OPENSSL_cleanse(buf,256);
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EVP_CIPHER_CTX_init(&ctx);
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EVP_DecryptInit_ex(&ctx,EVP_rc4(),NULL, key,NULL);
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EVP_DecryptUpdate(&ctx,os->data,&i,os->data,os->length);
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EVP_DecryptFinal_ex(&ctx,&(os->data[i]),&j);
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EVP_CIPHER_CTX_cleanup(&ctx);
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os->length=i+j;
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zz=os->data;
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if ((pkey=d2i_NETSCAPE_PKEY(NULL,&zz,os->length)) == NULL)
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{
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ASN1err(ASN1_F_D2I_RSA_NET_2,ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY);
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goto err;
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}
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zz=pkey->private_key->data;
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if ((ret=d2i_RSAPrivateKey(a,&zz,pkey->private_key->length)) == NULL)
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{
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ASN1err(ASN1_F_D2I_RSA_NET_2,ASN1_R_UNABLE_TO_DECODE_RSA_KEY);
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goto err;
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}
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err:
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NETSCAPE_PKEY_free(pkey);
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return(ret);
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}
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#endif /* OPENSSL_NO_RC4 */
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#else /* !OPENSSL_NO_RSA */
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# if PEDANTIC
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static void *dummy=&dummy;
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# endif
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#endif
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