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/*
* Copyright (c) 2021, [Ribose Inc](https://www.ribose.com).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "symmetric.h"
#include "cipher.hpp"
#if defined(CRYPTO_BACKEND_OPENSSL)
#include "cipher_ossl.hpp"
#elif defined(CRYPTO_BACKEND_BOTAN)
#include "cipher_botan.hpp"
#endif
std::unique_ptr<Cipher>
Cipher::encryption(pgp_symm_alg_t cipher,
pgp_cipher_mode_t mode,
size_t tag_size,
bool disable_padding)
{
#if defined(CRYPTO_BACKEND_OPENSSL)
return Cipher_OpenSSL::encryption(cipher, mode, tag_size, disable_padding);
#elif defined(CRYPTO_BACKEND_BOTAN)
return Cipher_Botan::encryption(cipher, mode, tag_size, disable_padding);
#else
#error "Crypto backend not specified"
#endif
}
std::unique_ptr<Cipher>
Cipher::decryption(pgp_symm_alg_t cipher,
pgp_cipher_mode_t mode,
size_t tag_size,
bool disable_padding)
{
#if defined(CRYPTO_BACKEND_OPENSSL)
return Cipher_OpenSSL::decryption(cipher, mode, tag_size, disable_padding);
#elif defined(CRYPTO_BACKEND_BOTAN)
return Cipher_Botan::decryption(cipher, mode, tag_size, disable_padding);
#else
#error "Crypto backend not specified"
#endif
}
Cipher::Cipher(pgp_symm_alg_t alg) : m_alg(alg)
{
}
Cipher::~Cipher()
{
}
size_t
Cipher::block_size() const
{
return pgp_block_size(m_alg);
}
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