1 | /* |
2 | * Copyright 1995-2016 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 "internal/cryptlib.h" |
12 | #include <openssl/bn.h> |
13 | #include <openssl/evp.h> |
14 | #include <openssl/objects.h> |
15 | #include <openssl/asn1.h> |
16 | #include <openssl/rsa.h> |
17 | #include <openssl/dsa.h> |
18 | #include <openssl/ec.h> |
19 | |
20 | #include "crypto/evp.h" |
21 | |
22 | EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp, |
23 | long length) |
24 | { |
25 | EVP_PKEY *ret; |
26 | |
27 | if ((a == NULL) || (*a == NULL)) { |
28 | if ((ret = EVP_PKEY_new()) == NULL) { |
29 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_EVP_LIB); |
30 | return NULL; |
31 | } |
32 | } else |
33 | ret = *a; |
34 | |
35 | if (type != EVP_PKEY_id(ret) && !EVP_PKEY_set_type(ret, type)) { |
36 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_EVP_LIB); |
37 | goto err; |
38 | } |
39 | |
40 | switch (EVP_PKEY_id(ret)) { |
41 | #ifndef OPENSSL_NO_RSA |
42 | case EVP_PKEY_RSA: |
43 | if ((ret->pkey.rsa = d2i_RSAPublicKey(NULL, pp, length)) == NULL) { |
44 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB); |
45 | goto err; |
46 | } |
47 | break; |
48 | #endif |
49 | #ifndef OPENSSL_NO_DSA |
50 | case EVP_PKEY_DSA: |
51 | /* TMP UGLY CAST */ |
52 | if (!d2i_DSAPublicKey(&ret->pkey.dsa, pp, length)) { |
53 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB); |
54 | goto err; |
55 | } |
56 | break; |
57 | #endif |
58 | #ifndef OPENSSL_NO_EC |
59 | case EVP_PKEY_EC: |
60 | if (!o2i_ECPublicKey(&ret->pkey.ec, pp, length)) { |
61 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB); |
62 | goto err; |
63 | } |
64 | break; |
65 | #endif |
66 | default: |
67 | ASN1err(ASN1_F_D2I_PUBLICKEY, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE); |
68 | goto err; |
69 | } |
70 | if (a != NULL) |
71 | (*a) = ret; |
72 | return ret; |
73 | err: |
74 | if (a == NULL || *a != ret) |
75 | EVP_PKEY_free(ret); |
76 | return NULL; |
77 | } |
78 | |