A simple hashing function using DES

DESHash.scala

package com.karlherler.crypto


import com.karlherler.crypto.javax.des.DES



class DESHash(msg: Array[Byte]) {
	private val h0 = Array(0x01.toByte, 0x23.toByte, 0x45.toByte, 
				   0x67.toByte, 0x89.toByte, 0xab.toByte,
				   0xcd.toByte, 0xef.toByte)

	val splitted = {
		val grouped = msg.grouped(8).toArray
		(grouped.dropRight(1) ++ Array(grouped.last.padTo(8, 0.toByte)))
	}
	
	val hash = {
		splitted.foldLeft(h0) { (h, d) =>
			val e = new DES(h)
			e.encrypt(d)
		}.slice(4, 8)
	}
	
}