24 lines
561 B
Go
24 lines
561 B
Go
// Copyright (c) 2013-2014 Conformal Systems LLC.
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package btcutil
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import (
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"hash"
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"code.google.com/p/go.crypto/ripemd160"
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"github.com/conformal/fastsha256"
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)
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// Calculate the hash of hasher over buf.
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func calcHash(buf []byte, hasher hash.Hash) []byte {
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hasher.Write(buf)
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return hasher.Sum(nil)
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}
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// Hash160 calculates the hash ripemd160(sha256(b)).
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func Hash160(buf []byte) []byte {
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return calcHash(calcHash(buf, fastsha256.New()), ripemd160.New())
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}
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