[331] | 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 <stdlib.h>
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| 12 | #include "internal/cryptlib.h"
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| 13 | #include <openssl/x509.h>
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| 14 | #include <openssl/rand.h>
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| 15 | #include "internal/asn1_int.h"
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| 16 | #include "internal/evp_int.h"
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| 17 | #include "internal/x509_int.h"
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| 18 |
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| 19 | /* Extract a private key from a PKCS8 structure */
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| 20 |
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| 21 | EVP_PKEY *EVP_PKCS82PKEY(const PKCS8_PRIV_KEY_INFO *p8)
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| 22 | {
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| 23 | EVP_PKEY *pkey = NULL;
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| 24 | const ASN1_OBJECT *algoid;
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| 25 | char obj_tmp[80];
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| 26 |
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| 27 | if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
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| 28 | return NULL;
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| 29 |
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| 30 | if ((pkey = EVP_PKEY_new()) == NULL) {
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| 31 | EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_MALLOC_FAILURE);
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| 32 | return NULL;
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| 33 | }
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| 34 |
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| 35 | if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) {
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| 36 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
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| 37 | i2t_ASN1_OBJECT(obj_tmp, 80, algoid);
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| 38 | ERR_add_error_data(2, "TYPE=", obj_tmp);
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| 39 | goto error;
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| 40 | }
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| 41 |
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| 42 | if (pkey->ameth->priv_decode) {
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| 43 | if (!pkey->ameth->priv_decode(pkey, p8)) {
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| 44 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_PRIVATE_KEY_DECODE_ERROR);
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| 45 | goto error;
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| 46 | }
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| 47 | } else {
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| 48 | EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_METHOD_NOT_SUPPORTED);
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| 49 | goto error;
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| 50 | }
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| 51 |
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| 52 | return pkey;
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| 53 |
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| 54 | error:
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| 55 | EVP_PKEY_free(pkey);
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| 56 | return NULL;
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| 57 | }
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| 58 |
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| 59 | /* Turn a private key into a PKCS8 structure */
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| 60 |
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| 61 | PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
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| 62 | {
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| 63 | PKCS8_PRIV_KEY_INFO *p8 = PKCS8_PRIV_KEY_INFO_new();
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| 64 | if (p8 == NULL) {
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| 65 | EVPerr(EVP_F_EVP_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
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| 66 | return NULL;
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| 67 | }
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| 68 |
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| 69 | if (pkey->ameth) {
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| 70 | if (pkey->ameth->priv_encode) {
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| 71 | if (!pkey->ameth->priv_encode(p8, pkey)) {
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| 72 | EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_PRIVATE_KEY_ENCODE_ERROR);
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| 73 | goto error;
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| 74 | }
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| 75 | } else {
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| 76 | EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_METHOD_NOT_SUPPORTED);
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| 77 | goto error;
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| 78 | }
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| 79 | } else {
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| 80 | EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
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| 81 | goto error;
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| 82 | }
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| 83 | RAND_add(p8->pkey->data, p8->pkey->length, 0.0);
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| 84 | return p8;
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| 85 | error:
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| 86 | PKCS8_PRIV_KEY_INFO_free(p8);
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| 87 | return NULL;
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| 88 | }
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| 89 |
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| 90 | /* EVP_PKEY attribute functions */
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| 91 |
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| 92 | int EVP_PKEY_get_attr_count(const EVP_PKEY *key)
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| 93 | {
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| 94 | return X509at_get_attr_count(key->attributes);
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| 95 | }
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| 96 |
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| 97 | int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, int lastpos)
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| 98 | {
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| 99 | return X509at_get_attr_by_NID(key->attributes, nid, lastpos);
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| 100 | }
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| 101 |
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| 102 | int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, const ASN1_OBJECT *obj,
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| 103 | int lastpos)
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| 104 | {
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| 105 | return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos);
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| 106 | }
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| 107 |
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| 108 | X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
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| 109 | {
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| 110 | return X509at_get_attr(key->attributes, loc);
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| 111 | }
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| 112 |
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| 113 | X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
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| 114 | {
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| 115 | return X509at_delete_attr(key->attributes, loc);
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| 116 | }
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| 117 |
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| 118 | int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
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| 119 | {
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| 120 | if (X509at_add1_attr(&key->attributes, attr))
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| 121 | return 1;
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| 122 | return 0;
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| 123 | }
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| 124 |
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| 125 | int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key,
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| 126 | const ASN1_OBJECT *obj, int type,
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| 127 | const unsigned char *bytes, int len)
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| 128 | {
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| 129 | if (X509at_add1_attr_by_OBJ(&key->attributes, obj, type, bytes, len))
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| 130 | return 1;
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| 131 | return 0;
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| 132 | }
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| 133 |
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| 134 | int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key,
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| 135 | int nid, int type,
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| 136 | const unsigned char *bytes, int len)
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| 137 | {
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| 138 | if (X509at_add1_attr_by_NID(&key->attributes, nid, type, bytes, len))
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| 139 | return 1;
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| 140 | return 0;
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| 141 | }
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| 142 |
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| 143 | int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key,
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| 144 | const char *attrname, int type,
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| 145 | const unsigned char *bytes, int len)
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| 146 | {
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| 147 | if (X509at_add1_attr_by_txt(&key->attributes, attrname, type, bytes, len))
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| 148 | return 1;
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| 149 | return 0;
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| 150 | }
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