hash160.go

package util

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())
}