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？