| 1 | /*
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| 2 | * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include "internal/cryptlib.h"
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| 12 | #include <openssl/asn1t.h>
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| 13 | #include <openssl/x509.h>
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| 14 | #include "crypto/x509.h"
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| 15 |
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| 16 | /* Minor tweak to operation: zero private key data */
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| 17 | static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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| 18 | void *exarg)
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| 19 | {
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| 20 | /* Since the structure must still be valid use ASN1_OP_FREE_PRE */
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| 21 | if (operation == ASN1_OP_FREE_PRE) {
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| 22 | PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval;
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| 23 | if (key->pkey)
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| 24 | OPENSSL_cleanse(key->pkey->data, key->pkey->length);
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| 25 | }
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| 26 | return 1;
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| 27 | }
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| 28 |
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| 29 | ASN1_SEQUENCE_cb(PKCS8_PRIV_KEY_INFO, pkey_cb) = {
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| 30 | ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, version, ASN1_INTEGER),
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| 31 | ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkeyalg, X509_ALGOR),
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| 32 | ASN1_SIMPLE(PKCS8_PRIV_KEY_INFO, pkey, ASN1_OCTET_STRING),
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| 33 | ASN1_IMP_SET_OF_OPT(PKCS8_PRIV_KEY_INFO, attributes, X509_ATTRIBUTE, 0)
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| 34 | } ASN1_SEQUENCE_END_cb(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO)
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| 35 |
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| 36 | IMPLEMENT_ASN1_FUNCTIONS(PKCS8_PRIV_KEY_INFO)
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| 37 |
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| 38 | int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj,
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| 39 | int version,
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| 40 | int ptype, void *pval, unsigned char *penc, int penclen)
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| 41 | {
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| 42 | if (version >= 0) {
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| 43 | if (!ASN1_INTEGER_set(priv->version, version))
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| 44 | return 0;
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| 45 | }
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| 46 | if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval))
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| 47 | return 0;
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| 48 | if (penc)
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| 49 | ASN1_STRING_set0(priv->pkey, penc, penclen);
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| 50 | return 1;
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| 51 | }
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| 52 |
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| 53 | int PKCS8_pkey_get0(const ASN1_OBJECT **ppkalg,
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| 54 | const unsigned char **pk, int *ppklen,
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| 55 | const X509_ALGOR **pa, const PKCS8_PRIV_KEY_INFO *p8)
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| 56 | {
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| 57 | if (ppkalg)
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| 58 | *ppkalg = p8->pkeyalg->algorithm;
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| 59 | if (pk) {
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| 60 | *pk = ASN1_STRING_get0_data(p8->pkey);
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| 61 | *ppklen = ASN1_STRING_length(p8->pkey);
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| 62 | }
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| 63 | if (pa)
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| 64 | *pa = p8->pkeyalg;
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| 65 | return 1;
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| 66 | }
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| 67 |
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| 68 | const STACK_OF(X509_ATTRIBUTE) *
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| 69 | PKCS8_pkey_get0_attrs(const PKCS8_PRIV_KEY_INFO *p8)
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| 70 | {
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| 71 | return p8->attributes;
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| 72 | }
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| 73 |
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| 74 | int PKCS8_pkey_add1_attr_by_NID(PKCS8_PRIV_KEY_INFO *p8, int nid, int type,
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| 75 | const unsigned char *bytes, int len)
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| 76 | {
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| 77 | if (X509at_add1_attr_by_NID(&p8->attributes, nid, type, bytes, len) != NULL)
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| 78 | return 1;
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| 79 | return 0;
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| 80 | }
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