poseidon2.hpp

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// === AUDIT STATUS ===
// internal:    { status: not started, auditors: [], date: YYYY-MM-DD }
// external_1:  { status: not started, auditors: [], date: YYYY-MM-DD }
// external_2:  { status: not started, auditors: [], date: YYYY-MM-DD }
// =====================
 
#pragma once
 
#include "poseidon2_params.hpp"
#include "poseidon2_permutation.hpp"
#include "sponge/sponge.hpp"
 
namespace bb::crypto {
 
template <typename Params> class Poseidon2 {
  public:
    using FF = typename Params::FF;
 
    // We choose our rate to be t-1 and capacity to be 1.
    using Sponge = FieldSponge<FF, Params::t - 1, 1, Params::t, Poseidon2Permutation<Params>>;
 
    static FF hash(const std::vector<FF>& input);
};
 
extern template class Poseidon2<Poseidon2Bn254ScalarFieldParams>;
} // namespace bb::crypto