hmac.hpp

#pragma once
#include <vanetza/common/byte_buffer.hpp>
#include <array>
#include <cstdint>
 
namespace vanetza
{
namespace security
{
 
using HmacKey = std::array<uint8_t, 32>;
using KeyTag = std::array<uint8_t, 16>;
 
/**
 * \brief generate HMAC key and create HMAC tag on data
 * \param data data to be tagged
 * \param hmacKey generated HMAC key
 * \return tag of data generated with hmacKey
*/
KeyTag create_hmac_tag(const vanetza::ByteBuffer& data, const HmacKey& hmacKey);
 
#if defined VANETZA_WITH_OPENSSL
KeyTag create_hmac_tag_openssl(const vanetza::ByteBuffer& data, const HmacKey& hmacKey);
#endif
 
#if defined VANETZA_WITH_CRYPTOPP
KeyTag create_hmac_tag_cryptopp(const vanetza::ByteBuffer& data, const HmacKey& hmacKey);
#endif
 
} // namespace security
} // namespace vanetza