RC2加密Java

我需要一个java应用程序上的数据库密钥加密/解密算法。 我必须使用以前使用c#实现的算法，但是它使用的一些类没有java等价物

这是c代码：

在java中创建等效代码有什么帮助吗？还是其他选择

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谢谢

这应该能帮到你

public static String encrypt(byte[] key, byte[] iv, String unencrypted) throws NoSuchAlgorithmException,
        NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException,
        IllegalBlockSizeException, BadPaddingException{
    RC2ParameterSpec ivSpec = new RC2ParameterSpec(key.length*8, iv);
    Cipher cipher = Cipher.getInstance("RC2/CBC/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(key, "RC2"), ivSpec);
    byte[] encrypted = cipher.doFinal(unencrypted.getBytes());
    return DatatypeConverter.printBase64Binary(encrypted);
}

public static String decrypt(byte[] key, byte[] iv, String encrypted) throws NoSuchAlgorithmException,
        NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException,
        IllegalBlockSizeException, BadPaddingException{
    RC2ParameterSpec ivSpec = new RC2ParameterSpec(key.length*8, iv);
    Cipher cipher = Cipher.getInstance("RC2/CBC/PKCS5Padding");
    cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(key, "RC2"), ivSpec);
    byte[] decrypted = cipher.doFinal(DatatypeConverter.parseBase64Binary(encrypted));

    return new String(decrypted);
}

使用相同的键和IV（代码中的向量），这些方法将生成与您列出的代码兼容的输入/输出

public static String encrypt(byte[] key, byte[] iv, String unencrypted) throws NoSuchAlgorithmException,
        NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException,
        IllegalBlockSizeException, BadPaddingException{
    RC2ParameterSpec ivSpec = new RC2ParameterSpec(key.length*8, iv);
    Cipher cipher = Cipher.getInstance("RC2/CBC/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(key, "RC2"), ivSpec);
    byte[] encrypted = cipher.doFinal(unencrypted.getBytes());
    return DatatypeConverter.printBase64Binary(encrypted);
}

public static String decrypt(byte[] key, byte[] iv, String encrypted) throws NoSuchAlgorithmException,
        NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException,
        IllegalBlockSizeException, BadPaddingException{
    RC2ParameterSpec ivSpec = new RC2ParameterSpec(key.length*8, iv);
    Cipher cipher = Cipher.getInstance("RC2/CBC/PKCS5Padding");
    cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(key, "RC2"), ivSpec);
    byte[] decrypted = cipher.doFinal(DatatypeConverter.parseBase64Binary(encrypted));

    return new String(decrypted);
}