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CLSAG prototypes

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sowle 2022-07-13 04:35:15 +02:00
parent 74f6ce33ac
commit 26f34edc83
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GPG key ID: C07A24B2D89D49FC
3 changed files with 73 additions and 3 deletions
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23
src/common/crypto_serialization.h
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@ -18,6 +18,7 @@
#include "crypto/crypto.h"
#include "crypto/hash.h"
#include "crypto/range_proofs.h"
#include "crypto/clsag.h"
#include "boost_serialization_maps.h"
//
@ -26,7 +27,7 @@
namespace crypto
{
struct bpp_signature_serialized : public crypto::bpp_signature
struct bpp_signature_serialized : public bpp_signature
{
BEGIN_SERIALIZE_OBJECT()
FIELD(L)
@ -51,7 +52,7 @@ namespace crypto
END_BOOST_SERIALIZATION()
};
struct bppe_signature_serialized : public crypto::bppe_signature
struct bppe_signature_serialized : public bppe_signature
{
BEGIN_SERIALIZE_OBJECT()
FIELD(L)
@ -77,7 +78,23 @@ namespace crypto
BOOST_SERIALIZE(delta_2)
END_BOOST_SERIALIZATION()
};
}
struct CLSAG_GG_signature_serialized : public CLSAG_GG_signature
{
BEGIN_SERIALIZE_OBJECT()
FIELD(c)
FIELD((std::vector<scalar_t>&)(r))
FIELD(K1)
END_SERIALIZE()
BEGIN_BOOST_SERIALIZATION()
BOOST_SERIALIZE(c)
BOOST_SERIALIZE((std::vector<scalar_t>&)(r))
BOOST_SERIALIZE(K1)
END_BOOST_SERIALIZATION()
};
} // namespace crypto
BLOB_SERIALIZER(crypto::chacha8_iv);
BLOB_SERIALIZER(crypto::hash);

19
src/crypto/clsag.cpp Normal file
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@ -0,0 +1,19 @@
// Copyright (c) 2022 Zano Project
// Copyright (c) 2022 sowle (val@zano.org, crypto.sowle@gmail.com)
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
//
// This file contains implementation of CLSAG (s.a. https://eprint.iacr.org/2019/654.pdf by Goodel at el)
//
#include "clsag.h"
namespace crypto
{
bool generate_CLSAG_GG(const hash& m, const std::vector<CLSAG_GG_input_ref_t>& ring, const point_t& pseudo_out_amount_commitment, const key_image& ki,
const scalar_t& secret_x, const scalar_t& secret_f, CLSAG_GG_signature& sig)
{
return false;
}
} // namespace crypto

34
src/crypto/clsag.h Normal file
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@ -0,0 +1,34 @@
// Copyright (c) 2022 Zano Project
// Copyright (c) 2022 sowle (val@zano.org, crypto.sowle@gmail.com)
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
//
// This file contains implementation of CLSAG (s.a. https://eprint.iacr.org/2019/654.pdf by Goodel at el)
//
#pragma once
#include "crypto-sugar.h"
namespace crypto
{
// GG stands for double layers (ring dimentions) both with respect to group element G
struct CLSAG_GG_signature
{
scalar_t c;
scalar_vec_t r; // size = size of the ring
public_key K1; // auxiliary key image for layer 1
};
struct CLSAG_GG_input_ref_t
{
CLSAG_GG_input_ref_t(const public_key& stealth_address, const public_key& amount_commitment)
: stealth_address(stealth_address), amount_commitment(amount_commitment) {}
const public_key& stealth_address;
const public_key& amount_commitment;
};
bool generate_CLSAG_GG(const hash& m, const std::vector<CLSAG_GG_input_ref_t>& ring, const point_t& pseudo_out_amount_commitment, const key_image& ki,
const scalar_t& secret_x, const scalar_t& secret_f, CLSAG_GG_signature& sig);
} // namespace crypto