做解密操作,出現如下錯誤 java.security.InvalidKeyException: Illegal key size
// 設置解密模式為AES的CBC模式
Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
SecretKeySpec key_spec = new SecretKeySpec(aesKey, "AES");
IvParameterSpec iv = new IvParameterSpec(Arrays.copyOfRange(aesKey, 0, 16));
cipher.init(Cipher.DECRYPT_MODE, key_spec, iv);
異常原因:如果密鑰大於128, 會拋出java.security.InvalidKeyException: Illegal key size 異常
解決方法:JDK7的下載地址: http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html
將兩個jar文件放到%JDK_HOME%\jre\lib\security目錄下覆蓋原來文件。
