Java tutorial
//package com.java2s; import java.security.NoSuchAlgorithmException; import javax.crypto.Cipher; public class Main { /** * Determines if unlimited-strength cryptography is allowed, i.e. if this JRE has then the unlimited strength policy * files installed. * * @return true if unlimited strength cryptography is allowed, otherwise false */ public static boolean isUnlimitedStrengthAllowed() { try { return Cipher.getMaxAllowedKeyLength("AES") >= 256; } catch (NoSuchAlgorithmException e) { return false; } } }