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Commit | Line | Data |
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2039c421 | 1 | /* |
38fc02a7 | 2 | * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
365a2d99 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
2039c421 RS |
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 | |
d02b48c6 RE |
8 | */ |
9 | ||
f41ac0ee P |
10 | /* |
11 | * DSA low level APIs are deprecated for public use, but still ok for | |
12 | * internal use. | |
13 | */ | |
14 | #include "internal/deprecated.h" | |
15 | ||
d02b48c6 | 16 | #include <stdio.h> |
b39fc560 | 17 | #include "internal/cryptlib.h" |
ec577822 BM |
18 | #include <openssl/bn.h> |
19 | #include <openssl/evp.h> | |
20 | #include <openssl/objects.h> | |
f66c3032 | 21 | #include <openssl/asn1.h> |
3c27208f RS |
22 | #include <openssl/rsa.h> |
23 | #include <openssl/dsa.h> | |
24 | #include <openssl/ec.h> | |
d02b48c6 | 25 | |
25f2138b | 26 | #include "crypto/evp.h" |
3aeb9348 | 27 | |
875a644a | 28 | EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp, |
0f113f3e MC |
29 | long length) |
30 | { | |
31 | EVP_PKEY *ret; | |
615a9b87 | 32 | EVP_PKEY *copy = NULL; |
d02b48c6 | 33 | |
0f113f3e MC |
34 | if ((a == NULL) || (*a == NULL)) { |
35 | if ((ret = EVP_PKEY_new()) == NULL) { | |
9311d0c4 | 36 | ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB); |
26a7d938 | 37 | return NULL; |
0f113f3e | 38 | } |
615a9b87 | 39 | } else { |
0f113f3e | 40 | ret = *a; |
d02b48c6 | 41 | |
615a9b87 TM |
42 | #ifndef OPENSSL_NO_EC |
43 | if (evp_pkey_is_provided(ret) | |
44 | && EVP_PKEY_get_base_id(ret) == EVP_PKEY_EC) { | |
45 | if (!evp_pkey_copy_downgraded(©, ret)) | |
46 | goto err; | |
47 | } | |
48 | #endif | |
49 | } | |
50 | ||
51 | if ((type != EVP_PKEY_get_id(ret) || copy != NULL) | |
52 | && !EVP_PKEY_set_type(ret, type)) { | |
9311d0c4 | 53 | ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB); |
0f113f3e MC |
54 | goto err; |
55 | } | |
c18e51ba | 56 | |
8582dccc | 57 | switch (EVP_PKEY_get_base_id(ret)) { |
0f113f3e | 58 | case EVP_PKEY_RSA: |
3aeb9348 | 59 | if ((ret->pkey.rsa = d2i_RSAPublicKey(NULL, pp, length)) == NULL) { |
9311d0c4 | 60 | ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB); |
0f113f3e MC |
61 | goto err; |
62 | } | |
63 | break; | |
cf1b7d96 | 64 | #ifndef OPENSSL_NO_DSA |
0f113f3e | 65 | case EVP_PKEY_DSA: |
3aeb9348 | 66 | if (!d2i_DSAPublicKey(&ret->pkey.dsa, pp, length)) { |
9311d0c4 | 67 | ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB); |
0f113f3e MC |
68 | goto err; |
69 | } | |
70 | break; | |
4d94ae00 | 71 | #endif |
14a7cfb3 | 72 | #ifndef OPENSSL_NO_EC |
0f113f3e | 73 | case EVP_PKEY_EC: |
615a9b87 TM |
74 | if (copy != NULL) { |
75 | /* use downgraded parameters from copy */ | |
76 | ret->pkey.ec = copy->pkey.ec; | |
77 | copy->pkey.ec = NULL; | |
78 | } | |
3aeb9348 | 79 | if (!o2i_ECPublicKey(&ret->pkey.ec, pp, length)) { |
9311d0c4 | 80 | ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB); |
0f113f3e MC |
81 | goto err; |
82 | } | |
83 | break; | |
d02b48c6 | 84 | #endif |
0f113f3e | 85 | default: |
9311d0c4 | 86 | ERR_raise(ERR_LIB_ASN1, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE); |
0f113f3e | 87 | goto err; |
0f113f3e MC |
88 | } |
89 | if (a != NULL) | |
90 | (*a) = ret; | |
615a9b87 | 91 | EVP_PKEY_free(copy); |
26a7d938 | 92 | return ret; |
0f113f3e | 93 | err: |
c5ba2d99 | 94 | if (a == NULL || *a != ret) |
0f113f3e | 95 | EVP_PKEY_free(ret); |
615a9b87 | 96 | EVP_PKEY_free(copy); |
26a7d938 | 97 | return NULL; |
0f113f3e | 98 | } |