package crypto import ( "bytes" "encoding/hex" "fmt" "testing" "time" "github.com/ethereum/go-ethereum/ethutil" "github.com/obscuren/secp256k1-go" ) // These tests are sanity checks. // They should ensure that we don't e.g. use Sha3-224 instead of Sha3-256 // and that the sha3 library uses keccak-f permutation. func TestSha3(t *testing.T) { msg := []byte("abc") exp, _ := hex.DecodeString("4e03657aea45a94fc7d47ba826c8d667c0d1e6e33a64a036ec44f58fa12d6c45") checkhash(t, "Sha3-256", Sha3, msg, exp) } func TestSha256(t *testing.T) { msg := []byte("abc") exp, _ := hex.DecodeString("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad") checkhash(t, "Sha256", Sha256, msg, exp) } func TestRipemd160(t *testing.T) { msg := []byte("abc") exp, _ := hex.DecodeString("8eb208f7e05d987a9b044a8e98c6b087f15a0bfc") checkhash(t, "Ripemd160", Ripemd160, msg, exp) } func checkhash(t *testing.T, name string, f func([]byte) []byte, msg, exp []byte) { sum := f(msg) if bytes.Compare(exp, sum) != 0 { t.Errorf("hash %s returned wrong result.\ngot: %x\nwant: %x", name, sum, exp) } } func BenchmarkSha3(b *testing.B) { a := []byte("hello world") amount := 1000000 start := time.Now() for i := 0; i < amount; i++ { Sha3(a) } fmt.Println(amount, ":", time.Since(start)) } func Test0Key(t *testing.T) { key := ethutil.Hex2Bytes("1111111111111111111111111111111111111111111111111111111111111111") p, err := secp256k1.GeneratePubKey(key) addr := Sha3(p[1:])[12:] fmt.Printf("%x\n", p) fmt.Printf("%v %x\n", err, addr) }