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[C#] 纯文本查看 复制代码

private async void Button_Click(object sender, RoutedEventArgs e)

{

    try

    {

        string KEY的ras加密 = EncryptWithPublicKey("abc");

        KEY的ras加密 = KEY的ras加密.Replace('+', '-').Replace('/', '_');



        string 加密后的密文 = AesEncrypt("abc");

        加密后的密文 = 加密后的密文.Replace('+', '-').Replace('/', '_');

    }

    catch (Exception ex)

    {

        // 处理异常

    }

}



static string EncryptWithPublicKey(string plainText)

{

    const string publicKeyPem = @"-----BEGIN PUBLIC KEY-----

MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8H6Gp7XP6UvEQzvUgGnt9nPX4exn1aNlmeyloMl6g2rEggeTNMp7I3iLPzQDbt6yedCru971fducKc2DgF/y2CcwAdqaKdxm0dSI2Zs4QLNYbKwWJ65wkgUh8+TJBnk+PGTgoxZ2wzvhJyRGjGhsFvLmZkUYPPxAPSNfjB3+/4wIDAQAB

-----END PUBLIC KEY-----";



    using (RSA rsa = RSA.Create())

    {

        rsa.ImportFromPem(publicKeyPem);

        byte[] plainBytes = Encoding.UTF8.GetBytes(plainText);

        byte[] encryptedBytes = rsa.Encrypt(plainBytes, RSAEncryptionPadding.Pkcs1);

        return Convert.ToBase64String(encryptedBytes);

    }

}



private string AesEncrypt(string plaintext)

{

    string key = "4a2c09ffbc6e7d0414d1ae731e3a0ce5"; // 32字节，AES-256

    byte[] keyBytes = Encoding.UTF8.GetBytes(key); // 正好32字节

    byte[] ivBytes = new byte[16]; // 16字节全0

    

    using (Aes aes = Aes.Create())

    {

        aes.Key = keyBytes;

        aes.IV = ivBytes;

        aes.Mode = CipherMode.CBC;

        aes.Padding = PaddingMode.PKCS7;



        using (ICryptoTransform encryptor = aes.CreateEncryptor())

        {

            byte[] plainBytes = Encoding.UTF8.GetBytes(plaintext);

            byte[] encryptedBytes = encryptor.TransformFinalBlock(plainBytes, 0, plainBytes.Length);

            return Convert.ToBase64String(encryptedBytes);

        }

    }

}