using System;
using System.Security.Cryptography;
using System.Text;
 
class BasicSecurityCheck
{
    // ฟังก์ชันสำหรับการเข้ารหัสข้อมูล
    public static string EncryptString(string plainText, string key)
    {
        using (Aes aesAlg = Aes.Create())
        {
            aesAlg.Key = Encoding.UTF8.GetBytes(key.PadLeft(32)); // กำหนดคีย์ 32 ไบต์
            aesAlg.IV = Encoding.UTF8.GetBytes(key.PadRight(16).Substring(0, 16)); // กำหนด IV 16 ไบต์
 
            ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
            byte[] encrypted = encryptor.TransformFinalBlock(Encoding.UTF8.GetBytes(plainText), 0, plainText.Length);
            return Convert.ToBase64String(encrypted);
        }
    }
 
    static void Main(string[] args)
    {
        string plainText = "SensitiveData";
        string key = "MySecretKey12345"; // คีย์ที่ใช้ในการเข้ารหัส
 
        string encryptedText = EncryptString(plainText, key);
        Console.WriteLine("ข้อมูลที่เข้ารหัส: " + encryptedText);
    }
}
 

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