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3bc4b00e69
git-subtree-dir: src/dashbls git-subtree-split: 66ee820fbc9e3b97370db8c164904af48327a124
169 lines
5.2 KiB
C++
169 lines
5.2 KiB
C++
// Copyright (c) 2021 The Dash Core developers
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <vector>
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#include <stdint.h>
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#include "dashbls/bls.hpp"
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#include "privatekey.h"
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#include "elements.h"
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#include "blschia.h"
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#include "threshold.h"
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#include "utils.hpp"
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#include "error.h"
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std::vector<bls::Bytes> toVectorHashes(void** elems, const size_t len) {
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std::vector<bls::Bytes> vec;
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vec.reserve(len);
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for (int i = 0 ; i < len; ++i) {
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vec.push_back(
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bls::Bytes((uint8_t*)elems[i], HashSize)
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);
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}
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return vec;
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}
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CPrivateKey CThresholdPrivateKeyShare(void** sks, const size_t sksLen, const void* hash, bool* didErr) {
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bls::PrivateKey* sk = nullptr;
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try {
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sk = new bls::PrivateKey(
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bls::Threshold::PrivateKeyShare(
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toBLSVector<bls::PrivateKey>(sks, sksLen),
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bls::Bytes((uint8_t*)hash, HashSize)
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)
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);
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} catch(const std::exception& ex) {
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gErrMsg = ex.what();
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*didErr = true;
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return nullptr;
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}
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*didErr = false;
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return sk;
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}
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CPrivateKey CThresholdPrivateKeyRecover(void** sks,
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const size_t sksLen,
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void** hashes,
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const size_t hashesLen,
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bool* didErr) {
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bls::PrivateKey* sk = nullptr;
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std::vector<bls::Bytes> pop = toVectorHashes(hashes, hashesLen);
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try {
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sk = new bls::PrivateKey(
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bls::Threshold::PrivateKeyRecover(
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toBLSVector<bls::PrivateKey>(sks, sksLen),
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toVectorHashes(hashes, hashesLen)
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)
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);
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} catch(const std::exception& ex) {
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gErrMsg = ex.what();
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*didErr = true;
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return nullptr;
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}
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*didErr = false;
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return sk;
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}
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CG1Element CThresholdPublicKeyShare(void** pks, const size_t pksLen, const void* hash, bool* didErr) {
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bls::G1Element* el = nullptr;
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try {
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el = new bls::G1Element(
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bls::Threshold::PublicKeyShare(
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toBLSVector<bls::G1Element>(pks, pksLen),
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bls::Bytes((uint8_t*)hash, HashSize)
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)
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);
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} catch(const std::exception& ex) {
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gErrMsg = ex.what();
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*didErr = true;
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return nullptr;
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}
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*didErr = false;
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return el;
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}
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CG1Element CThresholdPublicKeyRecover(void** pks,
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const size_t pksLen,
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void** hashes,
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const size_t hashesLen,
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bool* didErr) {
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bls::G1Element* el = nullptr;
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try {
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el = new bls::G1Element(
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bls::Threshold::PublicKeyRecover(
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toBLSVector<bls::G1Element>(pks, pksLen),
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toVectorHashes(hashes, hashesLen)
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)
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);
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} catch(const std::exception& ex) {
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gErrMsg = ex.what();
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*didErr = true;
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return nullptr;
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}
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*didErr = false;
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return el;
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}
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CG2Element CThresholdSignatureShare(void** sigs, const size_t sigsLen, const void* hash, bool* didErr) {
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bls::G2Element* el = nullptr;
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try {
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el = new bls::G2Element(
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bls::Threshold::SignatureShare(
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toBLSVector<bls::G2Element>(sigs, sigsLen),
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bls::Bytes((uint8_t*)hash, HashSize)
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)
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);
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} catch(const std::exception& ex) {
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gErrMsg = ex.what();
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*didErr = true;
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return nullptr;
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}
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*didErr = false;
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return el;
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}
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CG2Element CThresholdSignatureRecover(void** sigs,
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const size_t sigsLen,
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void** hashes,
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const size_t hashesLen,
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bool* didErr) {
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bls::G2Element* el = nullptr;
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try {
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el = new bls::G2Element(
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bls::Threshold::SignatureRecover(
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toBLSVector<bls::G2Element>(sigs, sigsLen),
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toVectorHashes(hashes, hashesLen)
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)
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);
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} catch(const std::exception& ex) {
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gErrMsg = ex.what();
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*didErr = true;
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return nullptr;
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}
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*didErr = false;
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return el;
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}
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CG2Element CThresholdSign(const CPrivateKey sk, const void* hash) {
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bls::PrivateKey* skPtr = (bls::PrivateKey*)sk;
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return new bls::G2Element(
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bls::Threshold::Sign(*skPtr, bls::Bytes((uint8_t*)hash, HashSize))
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);
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}
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bool CThresholdVerify(const CG1Element pk, const void* hash, const CG2Element sig) {
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bls::G1Element* pkPtr = (bls::G1Element*)pk;
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bls::G2Element* sigPtr = (bls::G2Element*)sig;
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return bls::Threshold::Verify(*pkPtr, bls::Bytes((uint8_t*)hash, HashSize), *sigPtr);
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}
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