2014-07-07 20:03:50 -07:00
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package p2p
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2014-06-07 19:09:47 -07:00
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import (
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2014-07-01 14:50:24 -07:00
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"crypto/sha256"
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2014-06-07 19:09:47 -07:00
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)
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2014-07-09 14:27:32 -07:00
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// doubleSha256 calculates sha256(sha256(b)) and returns the resulting bytes.
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func doubleSha256(b []byte) []byte {
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2014-06-07 19:09:47 -07:00
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hasher := sha256.New()
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hasher.Write(b)
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sum := hasher.Sum(nil)
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hasher.Reset()
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hasher.Write(sum)
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return hasher.Sum(nil)
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}
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