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 = "bob@google.org";
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”。我需要垫钥匙吗?我该怎么办?
还需要为ECB或CBC设置任何内容吗?
谢谢