AES加密報錯Illegal key size

報錯

java.security.InvalidKeyException: Illegal key size
    at javax.crypto.Cipher.checkCryptoPerm(Cipher.java:1039) ~[na:1.8.0_71]
    at javax.crypto.Cipher.implInit(Cipher.java:805) ~[na:1.8.0_71]
    at javax.crypto.Cipher.chooseProvider(Cipher.java:864) ~[na:1.8.0_71]
    at javax.crypto.Cipher.init(Cipher.java:1396) ~[na:1.8.0_71]
    at javax.crypto.Cipher.init(Cipher.java:1327) ~[na:1.8.0_71]

 

解決方案

下載lib包

https://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html

替換jdk安裝目錄下 jre* \lib\security 中的 local_policy.jar  和 US_export_policy.jar 兩個jar包