Java AES并使用我自己的密钥

Question

我想使用我自己的密钥使用AES加密字符串。但是我在密钥的位长度上遇到了麻烦。您能否查看我的代码并查看需要修复/更改的内容。public static void main(String[] args) throws Exception {    String username = "[e-mail]";    String password = "Password1";    String secretID = "BlahBlahBlah";    String SALT2 = "deliciously salty";    // Get the Key    byte[] key = (SALT2 + username + password).getBytes();    System.out.println((SALT2 + username + password).getBytes().length);    // Need to pad key for AES    // TODO: Best way?    // Generate the secret key specs.    SecretKeySpec secretKeySpec = new SecretKeySpec(key, "AES");    // Instantiate the cipher    Cipher cipher = Cipher.getInstance("AES");    cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);    byte[] encrypted = cipher.doFinal((secrectID).getBytes());    System.out.println("encrypted string: " + asHex(encrypted));    cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);    byte[] original = cipher.doFinal(encrypted);    String originalString = new String(original);    System.out.println("Original string: " + originalString + "\nOriginal string (Hex): " + asHex(original));}现在，我得到一个异常“ 无效的AES密钥长度：86个字节 ”。我是否需要垫钥匙？我该怎么办？还需要为ECB或CBC设置任何内容吗？