Blake2.h

/// Aleth: Ethereum C++ client, tools and libraries.
// Copyright 2019 Aleth Authors.
// Licensed under the GNU General Public License, Version 3.

#pragma once

#include <libdevcore/Common.h>

namespace dev
{
namespace crypto
{
/// Calculates the compression function F used in the BLAKE2 cryptographic hashing algorithm
/// Throws exception in case input data has incorrect size.
/// @param _rounds       the number of rounds
/// @param _stateVector  the state vector - 8 unsigned 64-bit little-endian words
/// @param _t0, _t1      offset counters - unsigned 64-bit little-endian words
/// @param _lastBlock    the final block indicator flag
/// @param _messageBlock the message block vector - 16 unsigned 64-bit little-endian words
/// @returns             updated state vector with unchanged encoding (little-endian)
bytes blake2FCompression(uint32_t _rounds, bytesConstRef _stateVector, bytesConstRef _t0,
    bytesConstRef _t1, bool _lastBlock, bytesConstRef _messageBlock);
}
}  // namespace dev