| /* 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 <openssl/opensslconf.h> |
| #if !defined(OPENSSL_SYS_STARBOARD) |
| #include <stdio.h> |
| #endif // !defined(OPENSSL_SYS_STARBOARD) |
| #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 = OPENSSL_port_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; |
| OPENSSL_port_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) || (OPENSSL_port_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 = OPENSSL_port_strlen((char *)buf); |
| if (sgckey) { |
| if (!EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL)) |
| goto err; |
| OPENSSL_port_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 |
