mirror of https://github.com/ethereum/go-ethereum
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.6 KiB
54 lines
1.6 KiB
// 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/>.
|
|
|
|
package secp256k1
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
|
|
"github.com/btcsuite/btcd/btcec/v2"
|
|
"github.com/ethereum/go-ethereum/crypto/secp256k1"
|
|
)
|
|
|
|
func TestFuzzer(t *testing.T) {
|
|
a, b := "00000000N0000000/R0000000000000000", "0U0000S0000000mkhP000000000000000U"
|
|
fuzz([]byte(a), []byte(b))
|
|
}
|
|
|
|
func Fuzz(f *testing.F) {
|
|
f.Fuzz(func(t *testing.T, a, b []byte) {
|
|
fuzz(a, b)
|
|
})
|
|
}
|
|
|
|
func fuzz(dataP1, dataP2 []byte) int {
|
|
var (
|
|
curveA = secp256k1.S256()
|
|
curveB = btcec.S256()
|
|
)
|
|
// first point
|
|
x1, y1 := curveB.ScalarBaseMult(dataP1)
|
|
// second points
|
|
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
|
|
}
|
|
|