1 | /* |
2 | * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | #include <stdio.h> |
11 | #include <stdlib.h> |
12 | #include "internal/cryptlib.h" |
13 | #include <openssl/x509.h> |
14 | #include <openssl/rand.h> |
15 | #include "crypto/asn1.h" |
16 | #include "crypto/evp.h" |
17 | #include "crypto/x509.h" |
18 | |
19 | /* Extract a private key from a PKCS8 structure */ |
20 | |
21 | EVP_PKEY *EVP_PKCS82PKEY(const PKCS8_PRIV_KEY_INFO *p8) |
22 | { |
23 | EVP_PKEY *pkey = NULL; |
24 | const ASN1_OBJECT *algoid; |
25 | char obj_tmp[80]; |
26 | |
27 | if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8)) |
28 | return NULL; |
29 | |
30 | if ((pkey = EVP_PKEY_new()) == NULL) { |
31 | EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_MALLOC_FAILURE); |
32 | return NULL; |
33 | } |
34 | |
35 | if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) { |
36 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM); |
37 | i2t_ASN1_OBJECT(obj_tmp, 80, algoid); |
38 | ERR_add_error_data(2, "TYPE=" , obj_tmp); |
39 | goto error; |
40 | } |
41 | |
42 | if (pkey->ameth->priv_decode) { |
43 | if (!pkey->ameth->priv_decode(pkey, p8)) { |
44 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_PRIVATE_KEY_DECODE_ERROR); |
45 | goto error; |
46 | } |
47 | } else { |
48 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_METHOD_NOT_SUPPORTED); |
49 | goto error; |
50 | } |
51 | |
52 | return pkey; |
53 | |
54 | error: |
55 | EVP_PKEY_free(pkey); |
56 | return NULL; |
57 | } |
58 | |
59 | /* Turn a private key into a PKCS8 structure */ |
60 | |
61 | PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(const EVP_PKEY *pkey) |
62 | { |
63 | PKCS8_PRIV_KEY_INFO *p8 = PKCS8_PRIV_KEY_INFO_new(); |
64 | if (p8 == NULL) { |
65 | EVPerr(EVP_F_EVP_PKEY2PKCS8, ERR_R_MALLOC_FAILURE); |
66 | return NULL; |
67 | } |
68 | |
69 | if (pkey->ameth) { |
70 | if (pkey->ameth->priv_encode) { |
71 | if (!pkey->ameth->priv_encode(p8, pkey)) { |
72 | EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_PRIVATE_KEY_ENCODE_ERROR); |
73 | goto error; |
74 | } |
75 | } else { |
76 | EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_METHOD_NOT_SUPPORTED); |
77 | goto error; |
78 | } |
79 | } else { |
80 | EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM); |
81 | goto error; |
82 | } |
83 | return p8; |
84 | error: |
85 | PKCS8_PRIV_KEY_INFO_free(p8); |
86 | return NULL; |
87 | } |
88 | |
89 | /* EVP_PKEY attribute functions */ |
90 | |
91 | int EVP_PKEY_get_attr_count(const EVP_PKEY *key) |
92 | { |
93 | return X509at_get_attr_count(key->attributes); |
94 | } |
95 | |
96 | int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, int lastpos) |
97 | { |
98 | return X509at_get_attr_by_NID(key->attributes, nid, lastpos); |
99 | } |
100 | |
101 | int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, const ASN1_OBJECT *obj, |
102 | int lastpos) |
103 | { |
104 | return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos); |
105 | } |
106 | |
107 | X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc) |
108 | { |
109 | return X509at_get_attr(key->attributes, loc); |
110 | } |
111 | |
112 | X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc) |
113 | { |
114 | return X509at_delete_attr(key->attributes, loc); |
115 | } |
116 | |
117 | int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr) |
118 | { |
119 | if (X509at_add1_attr(&key->attributes, attr)) |
120 | return 1; |
121 | return 0; |
122 | } |
123 | |
124 | int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key, |
125 | const ASN1_OBJECT *obj, int type, |
126 | const unsigned char *bytes, int len) |
127 | { |
128 | if (X509at_add1_attr_by_OBJ(&key->attributes, obj, type, bytes, len)) |
129 | return 1; |
130 | return 0; |
131 | } |
132 | |
133 | int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key, |
134 | int nid, int type, |
135 | const unsigned char *bytes, int len) |
136 | { |
137 | if (X509at_add1_attr_by_NID(&key->attributes, nid, type, bytes, len)) |
138 | return 1; |
139 | return 0; |
140 | } |
141 | |
142 | int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key, |
143 | const char *attrname, int type, |
144 | const unsigned char *bytes, int len) |
145 | { |
146 | if (X509at_add1_attr_by_txt(&key->attributes, attrname, type, bytes, len)) |
147 | return 1; |
148 | return 0; |
149 | } |
150 | |