allocation dup.read(hash) return append(b, hash...) } const ( magicSHA3 = "sha\x08" magicShake = "sha\x09" magicCShake = "sha\x0a" magicKeccak = "sha\x0b" // magic || rate || main state || n || sponge direction marshaledSize = len(magicSHA3) + 1 + 200 + 1 + 1 ) func (d *Digest) MarshalBinary() ([]byte, error) { return d.AppendBinary(make([]byte, 0, marshaledSize)) } func (d *Digest) AppendBinary(b []byte) ([]byte, error) { switch d.dsbyte { case dsbyteSHA3: b = append(b, magicSHA3...) case dsbyteShake:...