1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
59 #include "internal/cryptlib.h"
60 #include <openssl/bn.h>
61 #include <openssl/evp.h>
62 #include <openssl/objects.h>
63 #ifndef OPENSSL_NO_ENGINE
64 # include <openssl/engine.h>
66 #include <openssl/x509.h>
67 #include <openssl/asn1.h>
68 #include "internal/asn1_int.h"
69 #include "internal/evp_int.h"
71 EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp,
75 const unsigned char *p = *pp;
77 if ((a == NULL) || (*a == NULL)) {
78 if ((ret = EVP_PKEY_new()) == NULL) {
79 ASN1err(ASN1_F_D2I_PRIVATEKEY, ERR_R_EVP_LIB);
84 #ifndef OPENSSL_NO_ENGINE
85 ENGINE_finish(ret->engine);
90 if (!EVP_PKEY_set_type(ret, type)) {
91 ASN1err(ASN1_F_D2I_PRIVATEKEY, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE);
95 if (!ret->ameth->old_priv_decode ||
96 !ret->ameth->old_priv_decode(ret, &p, length)) {
97 if (ret->ameth->priv_decode) {
98 PKCS8_PRIV_KEY_INFO *p8 = NULL;
99 p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, length);
103 ret = EVP_PKCS82PKEY(p8);
104 PKCS8_PRIV_KEY_INFO_free(p8);
108 ASN1err(ASN1_F_D2I_PRIVATEKEY, ERR_R_ASN1_LIB);
117 if (a == NULL || *a != ret)
123 * This works like d2i_PrivateKey() except it automatically works out the
127 EVP_PKEY *d2i_AutoPrivateKey(EVP_PKEY **a, const unsigned char **pp,
130 STACK_OF(ASN1_TYPE) *inkey;
131 const unsigned char *p;
135 * Dirty trick: read in the ASN1 data into a STACK_OF(ASN1_TYPE): by
136 * analyzing it we can determine the passed structure: this assumes the
137 * input is surrounded by an ASN1 SEQUENCE.
139 inkey = d2i_ASN1_SEQUENCE_ANY(NULL, &p, length);
142 * Since we only need to discern "traditional format" RSA and DSA keys we
143 * can just count the elements.
145 if (sk_ASN1_TYPE_num(inkey) == 6)
146 keytype = EVP_PKEY_DSA;
147 else if (sk_ASN1_TYPE_num(inkey) == 4)
148 keytype = EVP_PKEY_EC;
149 else if (sk_ASN1_TYPE_num(inkey) == 3) { /* This seems to be PKCS8, not
150 * traditional format */
151 PKCS8_PRIV_KEY_INFO *p8 = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, length);
154 sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free);
156 ASN1err(ASN1_F_D2I_AUTOPRIVATEKEY,
157 ASN1_R_UNSUPPORTED_PUBLIC_KEY_TYPE);
160 ret = EVP_PKCS82PKEY(p8);
161 PKCS8_PRIV_KEY_INFO_free(p8);
170 keytype = EVP_PKEY_RSA;
171 sk_ASN1_TYPE_pop_free(inkey, ASN1_TYPE_free);
172 return d2i_PrivateKey(keytype, a, pp, length);