Question

嗨大家我解码文本时遇到问题，当我需要解码VS Debugger向我显示“输入数据不是一个完整的块”。我尝试了各种方法来解决这个问题，但我找不到:( 有人能帮助我吗？感谢。

        //Encoding
        try
        {
            MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
            UTF8Encoding utf8 = new UTF8Encoding();
            AesCryptoServiceProvider aes = new AesCryptoServiceProvider();
            aes.KeySize = 256;
            aes.BlockSize = 128;
            string str = System.IO.File.ReadAllText(pathread);
            aes.IV = md5.ComputeHash(utf8.GetBytes(textBox3.Text));
            aes.Key = md5.ComputeHash(utf8.GetBytes(textBox4.Text));
            aes.Mode = System.Security.Cryptography.CipherMode.CBC;

            aes.Padding = System.Security.Cryptography.PaddingMode.PKCS7;
            ICryptoTransform ic2 = aes.CreateEncryptor();
            byte[] enc = ic2.TransformFinalBlock(utf8.GetBytes(str), 0, utf8.GetBytes(str).Length);
            richTextBox1.Text = BitConverter.ToString(enc);
            //string toraj = BitConverter.ToString(ic2.TransformFinalBlock(utf8.GetBytes(str), 0, utf8.GetBytes(str).Length));
        }
        catch (Exception e1)
        {
            MessageBox.Show(e1.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }



        //Decoding
        MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
        UTF8Encoding utf8 = new UTF8Encoding();
        AesCryptoServiceProvider aes = new AesCryptoServiceProvider();
        aes.KeySize = 256;
        aes.BlockSize = 128;
        string str =  richTextBox1.Text.ToString();

        aes.IV = md5.ComputeHash(utf8.GetBytes(textBox3.Text));
        aes.Key = md5.ComputeHash(utf8.GetBytes(textBox4.Text));
        aes.Mode = System.Security.Cryptography.CipherMode.CBC;
        MessageBox.Show(str);
        byte[] encrypted = Encoding.UTF8.GetBytes(str);
        aes.Padding = System.Security.Cryptography.PaddingMode.PKCS7;
        ICryptoTransform ic5 = aes.CreateDecryptor();
        //for (int x = 0; x <= encrypted.Length; x++)
        //{
        //    Array.Reverse(encrypted);
        //}
        MessageBox.Show(encrypted[0].ToString("X"));

       MessageBox.Show( utf8.GetString(ic5.TransformFinalBlock(utf8.GetBytes(richTextBox1.Text), 0, utf8.GetBytes(richTextBox1.Text).Length)));

Answer 1

richTextBox1.Text = BitConverter.ToString(enc);

这是您将字节写入文本框。

utf8.GetBytes(richTextBox1.Text)

这就是你如何把它们搞定的。你真的认为这会产生相同的字节吗？拿一个调试器，在加密它们之前和解密之前检查两个字节数组。然后找到一种方法来存储你的字节数组而不改变它。您可以单独存储它或您可以更改将其写入文本框或的例程，您可以更改从文本框中读取它的例程。选择你最喜欢的那个。

在C＃上使用AES解码的问题

1 个答案: