Fix the default digest algorthm of SM2
[openssl.git] / crypto / asn1 / p8_pkey.c
1 /*
2  * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the OpenSSL license (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/asn1t.h>
13 #include <openssl/x509.h>
14 #include "internal/x509_int.h"
15
16 /* Minor tweak to operation: zero private key data */
17 static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
18                    void *exarg)
19 {
20     /* Since the structure must still be valid use ASN1_OP_FREE_PRE */
21     if (operation == ASN1_OP_FREE_PRE) {
22         PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval;
23         if (key->pkey)
24             OPENSSL_cleanse(key->pkey->data, key->pkey->length);
25     }
26     return 1;
27 }
28
29 ASN1_SEQUENCE_cb(PKCS8_PRIV_KEY_INFO, pkey_cb) = {
30         ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, version, ASN1_INTEGER),
31         ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkeyalg, X509_ALGOR),
32         ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkey, ASN1_OCTET_STRING),
33         ASN1_IMP_SET_OF_OPT(PKCS8_PRIV_KEY_INFO, attributes, X509_ATTRIBUTE, 0)
34 } ASN1_SEQUENCE_END_cb(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
35
36 IMPLEMENT_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO)
37
38 int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj,
39                     int version,
40                     int ptype, void *pval, unsigned char *penc, int penclen)
41 {
42     if (version >= 0) {
43         if (!ASN1_INTEGER_set(priv->version, version))
44             return 0;
45     }
46     if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval))
47         return 0;
48     if (penc)
49         ASN1_STRING_set0(priv->pkey, penc, penclen);
50     return 1;
51 }
52
53 int PKCS8_pkey_get0(const ASN1_OBJECT **ppkalg,
54                     const unsigned char **pk, int *ppklen,
55                     const X509_ALGOR **pa, const PKCS8_PRIV_KEY_INFO *p8)
56 {
57     if (ppkalg)
58         *ppkalg = p8->pkeyalg->algorithm;
59     if (pk) {
60         *pk = ASN1_STRING_get0_data(p8->pkey);
61         *ppklen = ASN1_STRING_length(p8->pkey);
62     }
63     if (pa)
64         *pa = p8->pkeyalg;
65     return 1;
66 }
67
68 const STACK_OF(X509_ATTRIBUTE) *
69 PKCS8_pkey_get0_attrs(const PKCS8_PRIV_KEY_INFO *p8)
70 {
71     return p8->attributes;
72 }
73
74 int PKCS8_pkey_add1_attr_by_NID(PKCS8_PRIV_KEY_INFO *p8, int nid, int type,
75                                 const unsigned char *bytes, int len)
76 {
77     if (X509at_add1_attr_by_NID(&p8->attributes, nid, type, bytes, len) != NULL)
78         return 1;
79     return 0;
80 }