poanetwork
/
quorum
mirror of https://github.com/poanetwork/quorum.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

crypto: fix error check in toECDSA (#15632) 

With this change,

    key, err := crypto.HexToECDSA("000000...")
    
returns nil key and an error instead of a non-nil key with nil X
and Y inside. Issue found by @guidovranken.
This commit is contained in:
Felix Lange 2017-12-11 22:49:09 +01:00 committed by GitHub
parent 2499b1b139
commit 1a32bdf92c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
crypto/crypto.go
View File

@ -98,6 +98,9 @@ func toECDSA(d []byte, strict bool) (*ecdsa.PrivateKey, error) {
}
priv.D = new(big.Int).SetBytes(d)
priv.PublicKey.X, priv.PublicKey.Y = priv.PublicKey.Curve.ScalarBaseMult(d)
if priv.PublicKey.X == nil {
return nil, errors.New("invalid private key")
}
return priv, nil
}

9
crypto/crypto_test.go
View File

@ -40,6 +40,15 @@ func TestKeccak256Hash(t *testing.T) {
checkhash(t, "Sha3-256-array", func(in []byte) []byte { h := Keccak256Hash(in); return h[:] }, msg, exp)
}
func TestToECDSAErrors(t *testing.T) {
if _, err := HexToECDSA("0000000000000000000000000000000000000000000000000000000000000000"); err == nil {
t.Fatal("HexToECDSA should've returned error")
}
if _, err := HexToECDSA("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); err == nil {
t.Fatal("HexToECDSA should've returned error")
}
}
func BenchmarkSha3(b *testing.B) {
a := []byte("hello world")
for i := 0; i < b.N; i++ {