libvirt/src/util/vircrypto.h

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/*
* vircrypto.h: cryptographic helper APIs
*
* Copyright (C) 2014, 2016 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "internal.h"
#define VIR_CRYPTO_HASH_SIZE_MD5 16
#define VIR_CRYPTO_HASH_SIZE_SHA256 32
typedef enum {
VIR_CRYPTO_HASH_MD5, /* Don't use this except for historic compat */
VIR_CRYPTO_HASH_SHA256,
VIR_CRYPTO_HASH_LAST
} virCryptoHash;
typedef enum {
VIR_CRYPTO_CIPHER_NONE = 0,
VIR_CRYPTO_CIPHER_AES256CBC,
VIR_CRYPTO_CIPHER_LAST
} virCryptoCipher;
ssize_t
virCryptoHashBuf(virCryptoHash hash,
const char *input,
unsigned char *output)
ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
ATTRIBUTE_RETURN_CHECK;
int
virCryptoHashString(virCryptoHash hash,
const char *input,
char **output)
ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
ATTRIBUTE_RETURN_CHECK;
bool virCryptoHaveCipher(virCryptoCipher algorithm);
int virCryptoEncryptData(virCryptoCipher algorithm,
uint8_t *enckey, size_t enckeylen,
uint8_t *iv, size_t ivlen,
uint8_t *data, size_t datalen,
uint8_t **ciphertext, size_t *ciphertextlen)
ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(6)
ATTRIBUTE_NONNULL(8) ATTRIBUTE_NONNULL(9) ATTRIBUTE_RETURN_CHECK;