tendermint/p2p/util.go

package p2p

import (
	"crypto/sha256"
)

// DoubleSha256 calculates sha256(sha256(b)) and returns the resulting bytes.
func DoubleSha256(b []byte) []byte {
	hasher := sha256.New()
	hasher.Write(b)
	sum := hasher.Sum(nil)
	hasher.Reset()
	hasher.Write(sum)
	return hasher.Sum(nil)
}
package rename peer -> p2p 2014-07-07 20:03:50 -07:00			`package p2p`
stripped addrmanager from btcd 2014-06-07 19:09:47 -07:00
			`import (`
go fmt 2014-07-01 14:50:24 -07:00			`"crypto/sha256"`
stripped addrmanager from btcd 2014-06-07 19:09:47 -07:00			`)`

			`// DoubleSha256 calculates sha256(sha256(b)) and returns the resulting bytes.`
			`func DoubleSha256(b []byte) []byte {`
			`hasher := sha256.New()`
			`hasher.Write(b)`
			`sum := hasher.Sum(nil)`
			`hasher.Reset()`
			`hasher.Write(sum)`
			`return hasher.Sum(nil)`
			`}`