--- /dev/null
+/* 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;
+ EVP_CIPHER_CTX_init(&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) {
+ if (!EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL))
+ goto err;
+ memcpy(buf + 16, "SGCKEYSALT", 10);
+ i = 26;
+ }
+
+ if (!EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,i,1,key,NULL))
+ goto err;
+ OPENSSL_cleanse(buf,256);
+
+ /* Encrypt private key in place */
+ zz = enckey->enckey->digest->data;
+ if (!EVP_EncryptInit_ex(&ctx,EVP_rc4(),NULL,key,NULL))
+ goto err;
+ if (!EVP_EncryptUpdate(&ctx,zz,&i,zz,pkeylen))
+ goto err;
+ if (!EVP_EncryptFinal_ex(&ctx,zz + i,&j))
+ goto err;
+
+ ret = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, pp);
+err:
+ EVP_CIPHER_CTX_cleanup(&ctx);
+ 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;
+ EVP_CIPHER_CTX_init(&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){
+ if (!EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL))
+ goto err;
+ memcpy(buf + 16, "SGCKEYSALT", 10);
+ i = 26;
+ }
+
+ if (!EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,i,1,key,NULL))
+ goto err;
+ OPENSSL_cleanse(buf,256);
+
+ if (!EVP_DecryptInit_ex(&ctx,EVP_rc4(),NULL, key,NULL))
+ goto err;
+ if (!EVP_DecryptUpdate(&ctx,os->data,&i,os->data,os->length))
+ goto err;
+ if (!EVP_DecryptFinal_ex(&ctx,&(os->data[i]),&j))
+ goto err;
+ 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:
+ EVP_CIPHER_CTX_cleanup(&ctx);
+ NETSCAPE_PKEY_free(pkey);
+ return(ret);
+ }
+
+#endif /* OPENSSL_NO_RC4 */
+
+#else /* !OPENSSL_NO_RSA */
+
+# if PEDANTIC
+static void *dummy=&dummy;
+# endif
+
+#endif
projects / cassiopeia.git / blobdiff