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/*
* 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 "kmac.hpp"
#if defined(ENABLE_PQC_DBG_LOG)
#include "crypto/mem.h"
#endif
#if defined(CRYPTO_BACKEND_BOTAN)
#include "kmac_botan.hpp"
#endif
#if defined(CRYPTO_BACKEND_OPENSSL)
#error KMAC256 not implemented for OpenSSL Backend
#endif
namespace rnp {
std::unique_ptr<KMAC256>
KMAC256::create()
{
#if defined(CRYPTO_BACKEND_OPENSSL)
#error KMAC256 not implemented for OpenSSL
// return Hash_OpenSSL::create();
#elif defined(CRYPTO_BACKEND_BOTAN)
return KMAC256_Botan::create();
#else
#error "Crypto backend not specified"
#endif
}
std::vector<uint8_t>
KMAC256::domSeparation() const
{
return domSeparation_;
}
std::vector<uint8_t>
KMAC256::customizationString() const
{
return customizationString_;
}
std::vector<uint8_t>
KMAC256::counter() const
{
return counter_;
}
/*
// Input:
// algID - the algorithm ID encoded as octet
fixedInfo = algID
*/
std::vector<uint8_t>
KMAC256::fixedInfo(pgp_pubkey_alg_t alg_id)
{
std::vector<uint8_t> result;
result.push_back(static_cast<uint8_t>(alg_id));
return result;
}
std::vector<uint8_t>
KMAC256::encData(const std::vector<uint8_t> &ecc_key_share,
const std::vector<uint8_t> &ecc_ciphertext,
const std::vector<uint8_t> &kyber_key_share,
const std::vector<uint8_t> &kyber_ciphertext,
pgp_pubkey_alg_t alg_id)
{
std::vector<uint8_t> enc_data;
std::vector<uint8_t> counter_vec = counter();
std::vector<uint8_t> fixedInfo_vec = fixedInfo(alg_id);
/* draft-wussler-openpgp-pqc-02:
eccKemData = eccKeyShare || eccCipherText
kyberKemData = kyberKeyShare || kyberCipherText
encData = counter || eccKemData || kyberKemData || fixedInfo
*/
#if defined(ENABLE_PQC_DBG_LOG)
RNP_LOG_NO_POS_INFO("KMAC256 encData: ");
RNP_LOG_U8VEC(" - counter: %s", counter_vec);
RNP_LOG_U8VEC(" - eccKeyShare: %s", ecc_key_share);
RNP_LOG_U8VEC(" - eccCipherText: %s", ecc_ciphertext);
RNP_LOG_U8VEC(" - kyberKeyShare: %s", kyber_key_share);
RNP_LOG_U8VEC(" - kyberCipherText: %s", kyber_ciphertext);
RNP_LOG_U8VEC(" - fixedInfo: %s", fixedInfo_vec);
#endif
enc_data.insert(enc_data.end(), counter_vec.begin(), counter_vec.end());
enc_data.insert(enc_data.end(), ecc_key_share.begin(), ecc_key_share.end());
enc_data.insert(enc_data.end(), ecc_ciphertext.begin(), ecc_ciphertext.end());
enc_data.insert(enc_data.end(), kyber_key_share.begin(), kyber_key_share.end());
enc_data.insert(enc_data.end(), kyber_ciphertext.begin(), kyber_ciphertext.end());
enc_data.insert(enc_data.end(), fixedInfo_vec.begin(), fixedInfo_vec.end());
return enc_data;
}
KMAC256::~KMAC256()
{
}
} // namespace rnp