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/*
* Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/err.h>
#include "crypto/ecx.h"
ECX_KEY *ecx_key_new(OPENSSL_CTX *libctx, ECX_KEY_TYPE type, int haspubkey)
{
ECX_KEY *ret = OPENSSL_zalloc(sizeof(*ret));
if (ret == NULL)
return NULL;
ret->libctx = libctx;
ret->haspubkey = haspubkey;
switch (type) {
case ECX_KEY_TYPE_X25519:
ret->keylen = X25519_KEYLEN;
break;
case ECX_KEY_TYPE_X448:
ret->keylen = X448_KEYLEN;
break;
case ECX_KEY_TYPE_ED25519:
ret->keylen = ED25519_KEYLEN;
break;
case ECX_KEY_TYPE_ED448:
ret->keylen = ED448_KEYLEN;
break;
}
ret->type = type;
ret->references = 1;
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
OPENSSL_free(ret);
return NULL;
}
return ret;
}
void ecx_key_free(ECX_KEY *key)
{
int i;
if (key == NULL)
return;
CRYPTO_DOWN_REF(&key->references, &i, key->lock);
REF_PRINT_COUNT("ECX_KEY", r);
if (i > 0)
return;
REF_ASSERT_ISNT(i < 0);
OPENSSL_secure_clear_free(key->privkey, key->keylen);
CRYPTO_THREAD_lock_free(key->lock);
OPENSSL_free(key);
}
int ecx_key_up_ref(ECX_KEY *key)
{
int i;
if (CRYPTO_UP_REF(&key->references, &i, key->lock) <= 0)
return 0;
REF_PRINT_COUNT("ECX_KEY", key);
REF_ASSERT_ISNT(i < 2);
return ((i > 1) ? 1 : 0);
}
unsigned char *ecx_key_allocate_privkey(ECX_KEY *key)
{
key->privkey = OPENSSL_secure_zalloc(key->keylen);
return key->privkey;
}
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