encryption key must be the same output

Hi,
 

Problem
The code seems to be working fine, but there is an issue with the encryption key. The encryption key is hardcoded as "wgqpwijwlalgbxbd" in both the Encrypt and Decrypt functions. However, the desired output is to have the same encryption key as "wgqpwijwlalgbxbd".

Cause
The issue is that the encryption key is hardcoded in the code, and it is not being dynamically generated based on the desired output.

Try this code

using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;

namespace Decryption
{
    public class Program
    {
        public static void Main()
        {
            Console.WriteLine("Enter the encrypted text:");
            string plainText = Console.ReadLine();
            string encryptionKey = GenerateEncryptionKey();
            string encryptedText = Encrypt(plainText, encryptionKey);
            Console.WriteLine("Encrypted Text VB: " + encryptedText);

            string decryptedText = Decrypt(encryptedText, encryptionKey);
            Console.WriteLine("Decrypted Text VB: " + decryptedText);

            Console.ReadLine();
        }

        private static string GenerateEncryptionKey()
        {
            return "wgqpwijwlalgbxbd";
        }

        private static string Encrypt(string clearText, string encryptionKey)
        {
            byte[] clearBytes = Encoding.Unicode.GetBytes(clearText);
            using (Aes encryptor = Aes.Create())
            {
                Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(encryptionKey, new byte[] { 0x49, 0x76, 0x61, 0x6E, 0x20, 0x4D, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 });
                encryptor.Key = pdb.GetBytes(32);
                encryptor.IV = pdb.GetBytes(16);
                using (MemoryStream ms = new MemoryStream())
                {
                    using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateEncryptor(), CryptoStreamMode.Write))
                    {
                        cs.Write(clearBytes, 0, clearBytes.Length);
                    }
                    return Convert.ToBase64String(ms.ToArray());
                }
            }
        }

        private static string Decrypt(string cipherText, string encryptionKey)
        {
            byte[] cipherBytes = Convert.FromBase64String(cipherText);
            using (Aes encryptor = Aes.Create())
            {
                Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(encryptionKey, new byte[] { 0x49, 0x76, 0x61, 0x6E, 0x20, 0x4D, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 });
                encryptor.Key = pdb.GetBytes(32);
                encryptor.IV = pdb.GetBytes(16);
                using (MemoryStream ms = new MemoryStream())
                {
                    using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateDecryptor(), CryptoStreamMode.Write))
                    {
                        cs.Write(cipherBytes, 0, cipherBytes.Length);
                    }
                    return Encoding.Unicode.GetString(ms.ToArray());
                }
            }
        }
    }
}

In this updated code, I have added a new method called GenerateEncryptionKey that returns the desired encryption key "wgqpwijwlalgbxbd". This method can be modified to generate the encryption key dynamically if needed.