遇到Java Security: Illegal key size or default parameters，解決方式如下：
Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 6
Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 7 Download
Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 8 Download
在去把檔案丟到 ${java.home}/jre/lib/security/ 裡就可以了