John Newbigin jnewbigin

jehrhardt / KeyLengthDetector.java

Created March 15, 2013 06:23

Detect the allowed size of AES keys on the JVM. If the size is <= 256, it is limited. To fix it JCE unlimted stregth files are needed.

	import javax.crypto.Cipher;
	import java.security.NoSuchAlgorithmException;

	public class KeyLengthDetector {
	public static void main(String[] args) {
	int allowedKeyLength = 0;

	try {
	allowedKeyLength = Cipher.getMaxAllowedKeyLength("AES");
	} catch (NoSuchAlgorithmException e) {