Java字符串加密

问题内容：

我在我的iPhone应用程序中使用Objective C中的加密类，但是我在努力通过Android应用程序在JAVA中使用相同的功能。我的加密代码如下：

NSString * _secret = @"password";
NSString * _key = @"1428324560542678";

StringEncryption *crypto = [[StringEncryption alloc] init];
NSData *_secretData = [_secret dataUsingEncoding:NSUTF8StringEncoding];
CCOptions padding = kCCOptionPKCS7Padding;
NSData *encryptedData = [crypto encrypt:_secretData key:[_key dataUsingEncoding:NSUTF8StringEncoding] padding:&padding];

我试图在JAVA中复制它，但是当我编码相同的数据时却得到了不同的字符串。所以我做错了事，但我无法弄清楚。这是我的JAVA代码：

byte[] key = "1428324560542678".getBytes();

Cipher c = null;
            try {
                c = Cipher.getInstance("AES/ECB/PKCS7Padding");
            } catch (NoSuchAlgorithmException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (NoSuchPaddingException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

SecretKeySpec k =  new SecretKeySpec(key, "AES");
            try {
                c.init(Cipher.ENCRYPT_MODE, k);
            } catch (InvalidKeyException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

    try {
        EditText tv1passwordText = (EditText) findViewById(R.id.password);
        String password = URLEncoder.encode(tv1passwordText.getText().toString(), "UTF-8");

            byte[] encryptedData = c.doFinal( password.getBytes());

谁能看到我要去哪里错了？

根据以下注释，我添加了getBytes，但是生成的字符串仍然不同：

byte[] key = null;
            try {
                key = "1428324560542678".getBytes("UTF-8");
            } catch (UnsupportedEncodingException e2) {
                // TODO Auto-generated catch block
                e2.printStackTrace();
            }

            Cipher c = null;
            try {
                c = Cipher.getInstance("AES/ECB/PKCS7Padding");
            } catch (NoSuchAlgorithmException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (NoSuchPaddingException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            SecretKeySpec k =  new SecretKeySpec(key, "AES");
            try {
                c.init(Cipher.ENCRYPT_MODE, k);
            } catch (InvalidKeyException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            try {
                EditText tv1passwordText = (EditText) findViewById(R.id.password);

                byte[] password = tv1passwordText.getText().toString().getBytes("UTF-8");

                byte[] encryptedData = c.doFinal(password);

问题答案：

这是加密和解密的示例：

public static SecretKey generateKey() throws NoSuchAlgorithmException, InvalidKeySpecException {
    return secret = new SecretKeySpec(password.getBytes(), "AES");
}

public static byte[] encryptMsg(String message, SecretKey secret) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidParameterSpecException, IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException {
/* Encrypt the message. */
    Cipher cipher = null;
    cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, secret);
    byte[] cipherText = cipher.doFinal(message.getBytes("UTF-8"));
    return cipherText;
}

public static String decryptMsg(byte[] cipherText, SecretKey secret) throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidParameterSpecException, InvalidAlgorithmParameterException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException, UnsupportedEncodingException {

    /* Decrypt the message, given derived encContentValues and initialization vector. */
    Cipher cipher = null;
    cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
   cipher.init(Cipher.DECRYPT_MODE, secret);
    String decryptString = new String(cipher.doFinal(cipherText), "UTF-8");
    return decryptString;
}

加密：

    SecretKey secret = EncUtil.generateKey();
    EncUtil.encryptMsg(<String to Encrypt>, secret))

解密

    EncUtil.decryptMsg(<byte[]>, secret))

Java字符串加密

微信关注