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tests, secp256k1: secp256k1 fuzzer implementation (#2906)
* added secp256k1 fuzzer * Updated references to secp256k1 and erigon-lib * Update go.sum * Update go.mod * Update go.mod * Update go.sum Co-authored-by: ledgerwatch <akhounov@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| // 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/>. | ||
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| // build +gofuzz | ||
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| package secp256k1 | ||
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| import ( | ||
| "fmt" | ||
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| "github.com/btcsuite/btcd/btcec" | ||
| fuzz "github.com/google/gofuzz" | ||
| "github.com/ledgerwatch/secp256k1" | ||
| ) | ||
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| 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: erigon: %s %s btcd: %s %s", resAX, resAY, resBX, resBY)) | ||
| } | ||
| return 0 | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| package secp256k1 | ||
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| import "testing" | ||
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| func TestFuzzer(t *testing.T) { | ||
| test := "00000000N0000000/R00000000000000000U0000S0000000mkhP000000000000000U" | ||
| Fuzz([]byte(test)) | ||
| } |