forked from cerc-io/plugeth
51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
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// Copyright 2021 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// build +gofuzz
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package secp256k1
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import (
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"fmt"
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"github.com/btcsuite/btcd/btcec"
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"github.com/ethereum/go-ethereum/crypto/secp256k1"
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fuzz "github.com/google/gofuzz"
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)
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func Fuzz(input []byte) int {
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var (
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fuzzer = fuzz.NewFromGoFuzz(input)
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curveA = secp256k1.S256()
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curveB = btcec.S256()
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dataP1 []byte
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dataP2 []byte
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)
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// first point
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fuzzer.Fuzz(&dataP1)
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x1, y1 := curveB.ScalarBaseMult(dataP1)
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// second point
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fuzzer.Fuzz(&dataP2)
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x2, y2 := curveB.ScalarBaseMult(dataP2)
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resAX, resAY := curveA.Add(x1, y1, x2, y2)
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resBX, resBY := curveB.Add(x1, y1, x2, y2)
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if resAX.Cmp(resBX) != 0 || resAY.Cmp(resBY) != 0 {
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fmt.Printf("%s %s %s %s\n", x1, y1, x2, y2)
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panic(fmt.Sprintf("Addition failed: geth: %s %s btcd: %s %s", resAX, resAY, resBX, resBY))
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}
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return 0
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}
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