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