| /* crypto/asn1/d2i_pr.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" |
| #include <openssl/bn.h> |
| #include <openssl/evp.h> |
| #include <openssl/objects.h> |
| #ifndef OPENSSL_NO_ENGINE |
| # include <openssl/engine.h> |
| #endif |
| #include <openssl/x509.h> |
| #include <openssl/asn1.h> |
| #include "asn1_locl.h" |
| |
| EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp, |
| long length) |
| { |
| EVP_PKEY *ret; |
| const unsigned char *p = *pp; |
| |
| if ((a == NULL) || (*a == NULL)) { |
| if ((ret = EVP_PKEY_new()) == NULL) { |
| ASN1err(ASN1_F_D2I_PRIVATEKEY, ERR_R_EVP_LIB); |
| return (NULL); |
| } |
| } else { |
| ret = *a; |
| #ifndef OPENSSL_NO_ENGINE |
| if (ret->engine) { |
| ENGINE_finish(ret->engine); |
| ret->engine = NULL; |
| } |
| #endif |
| } |
| |
| if (!EVP_PKEY_set_type(ret, type)) { |
| ASN1err(ASN1_F_D2I_PRIVATEKEY, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE); |
| goto err; |
| } |
| |
| if (!ret->ameth->old_priv_decode || |
| !ret->ameth->old_priv_decode(ret, &p, length)) { |
| if (ret->ameth->priv_decode) { |
| PKCS8_PRIV_KEY_INFO *p8 = NULL; |
| p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, length); |
| if (!p8) |
| goto err; |
| EVP_PKEY_free(ret); |
| ret = EVP_PKCS82PKEY(p8); |
| PKCS8_PRIV_KEY_INFO_free(p8); |
| if (ret == NULL) |
| goto err; |
| } else { |
| ASN1err(ASN1_F_D2I_PRIVATEKEY, ERR_R_ASN1_LIB); |
| goto err; |
| } |
| } |
| *pp = p; |
| if (a != NULL) |
| (*a) = ret; |
| return (ret); |
| err: |
| if ((ret != NULL) && ((a == NULL) || (*a != ret))) |
| EVP_PKEY_free(ret); |
| return (NULL); |
| } |
| |
| /* |
| * This works like d2i_PrivateKey() except it automatically works out the |
| * type |
| */ |
| |
| EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp, |
| long length) |
| { |
| STACK_OF(ASN1_TYPE) *inkey; |
| const unsigned char *p; |
| int keytype; |
| p = *pp; |
| /* |
| * Dirty trick: read in the ASN1 data into a STACK_OF(ASN1_TYPE): by |
| * analyzing it we can determine the passed structure: this assumes the |
| * input is surrounded by an ASN1 SEQUENCE. |
| */ |
| inkey = d2i_ASN1_SEQUENCE_ANY(NULL, &p, length); |
| p = *pp; |
| /* |
| * Since we only need to discern "traditional format" RSA and DSA keys we |
| * can just count the elements. |
| */ |
| if (sk_ASN1_TYPE_num(inkey) == 6) |
| keytype = EVP_PKEY_DSA; |
| else if (sk_ASN1_TYPE_num(inkey) == 4) |
| keytype = EVP_PKEY_EC; |
| else if (sk_ASN1_TYPE_num(inkey) == 3) { /* This seems to be PKCS8, not |
| * traditional format */ |
| PKCS8_PRIV_KEY_INFO *p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, length); |
| EVP_PKEY *ret; |
| |
| sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free); |
| if (!p8) { |
| ASN1err(ASN1_F_D2I_AUTOPRIVATEKEY, |
| ASN1_R_UNSUPPORTED_PUBLIC_KEY_TYPE); |
| return NULL; |
| } |
| ret = EVP_PKCS82PKEY(p8); |
| PKCS8_PRIV_KEY_INFO_free(p8); |
| if (ret == NULL) |
| return NULL; |
| *pp = p; |
| if (a) { |
| *a = ret; |
| } |
| return ret; |
| } else |
| keytype = EVP_PKEY_RSA; |
| sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free); |
| return d2i_PrivateKey(keytype, a, pp, length); |
| } |
