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#pragma once
/*
* The Sleuth Kit
*
* Brian Carrier [carrier <at> sleuthkit [dot] org]
* Copyright (c) 2018-2019 BlackBag Technologies. All Rights reserved
*
* This software is distributed under the Common Public License 1.0
*/
/**
* This is currently being used only by APFS
*/
#include "../base/tsk_base.h"
#ifdef HAVE_LIBOPENSSL
#include <openssl/evp.h>
#include <memory>
#include <mutex>
class aes_xts_decryptor {
EVP_CIPHER_CTX *_ctx{};
size_t _block_size{};
#ifdef TSK_MULTITHREAD_LIB
std::mutex _ctx_lock{};
#endif
public:
enum AES_MODE { AES_128, AES_256 };
aes_xts_decryptor(AES_MODE mode, const uint8_t *key1, const uint8_t *key2,
size_t block_size) noexcept;
// Not copyable
aes_xts_decryptor(const aes_xts_decryptor &) noexcept = delete;
aes_xts_decryptor &operator=(const aes_xts_decryptor) noexcept = delete;
~aes_xts_decryptor() noexcept;
int decrypt_buffer(void *buffer, size_t length, uint64_t position) noexcept;
int decrypt_block(void *buffer, size_t length, uint64_t block) noexcept;
};
std::unique_ptr<uint8_t[]> pbkdf2_hmac_sha256(const std::string &password,
const void *salt, size_t salt_len,
int iterations,
size_t key_len) noexcept;
std::unique_ptr<uint8_t[]> rfc3394_key_unwrap(
const uint8_t *key, size_t key_len, const void *input, size_t input_len,
const void *iv = nullptr) noexcept;
std::unique_ptr<uint8_t[]> hash_buffer_md5(const void *input,
size_t len) noexcept;
std::unique_ptr<uint8_t[]> hash_buffer_sha256(const void *input,
size_t len) noexcept;
#endif
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