Igor Mandrigin fb3d2ff6fe
Introduce the dependency vendoring tool: dep. (#551)
* Introduce `dep`, the dependency vendoring tool.

Use commits from `go-ethereum@release/1.7` for most of the dependencies.

* Update dependencies.
2018-01-25 14:08:43 +01:00

24 lines
532 B
Go

// Copyright (c) 2013-2017 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package btcutil
import (
"crypto/sha256"
"hash"
"golang.org/x/crypto/ripemd160"
)
// Calculate the hash of hasher over buf.
func calcHash(buf []byte, hasher hash.Hash) []byte {
hasher.Write(buf)
return hasher.Sum(nil)
}
// Hash160 calculates the hash ripemd160(sha256(b)).
func Hash160(buf []byte) []byte {
return calcHash(calcHash(buf, sha256.New()), ripemd160.New())
}