Review

Uses DES which is considered unsafe.

• missing/condition/value_or_state

server/generateChecksumPostsAndReplies.java

main(String[])

class generateChecksumPostsAndReplies {
	/**
	 * @param args
	 */
	public static void main(String[] args) throws Exception{
		/*make decoder*/
		DESKeySpec keySpec = new DESKeySpec(CryptoUtil.decode("92LlYoVU1hU="));
		SecretKeyFactory factory = SecretKeyFactory.getInstance("DES");
		SecretKey key = factory.generateSecret(keySpec);
		
		byte[] iv = CryptoUtil.decode(decAndCheck.substring(0, 12));
		Cipher c = Cipher.getInstance("DES/CBC/PKCS5Padding");
		IvParameterSpec ivSpec = new IvParameterSpec(iv);
		c.init(Cipher.DECRYPT_MODE, key, ivSpec);
		
		byte[] content = c.doFinal(CryptoUtil.decode(decAndCheck.substring(12)));
		System.out.println(new String(content, "UTF8"));
		byte[] checksum = Hash.generateChecksum(content);
		System.out.println("\"" + CryptoUtil.encode(checksum) + "\"");
		
	}
}