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- //
- // https://github.com/priore/SOAPEngine/blob/master/CSHARP/AES256Class.cs
- //
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Web;
- using System.Security.Cryptography;
- using System.IO;
- using System.Text;
- namespace SOAPEngine.Cryptography
- {
- public class AES256Class
- {
- public static string EncryptText(string input, string password)
- {
- // Get the bytes of the string
- byte[] bytesToBeEncrypted = UTF8Encoding.UTF8.GetBytes(input);
- byte[] passwordBytes = UTF8Encoding.UTF8.GetBytes(password);
- // Hash the password with SHA256
- passwordBytes = SHA256.Create().ComputeHash(passwordBytes);
- byte[] bytesEncrypted = AES_Encrypt(bytesToBeEncrypted, passwordBytes);
- return Convert.ToBase64String(bytesEncrypted);
- }
- public static byte[] AES_Encrypt(byte[] bytesToBeEncrypted, byte[] passwordBytes)
- {
- byte[] encryptedBytes = null;
- using (RijndaelManaged AES = new RijndaelManaged())
- {
- AES.KeySize = 256;
- AES.BlockSize = 128;
- AES.Mode = CipherMode.ECB;
- AES.Padding = PaddingMode.PKCS7;
- AES.Key = passwordBytes;
- using (ICryptoTransform encrypto = AES.CreateEncryptor())
- {
- encryptedBytes = encrypto.TransformFinalBlock(bytesToBeEncrypted, 0, bytesToBeEncrypted.Length);
- }
- }
- return encryptedBytes;
- }
- public static string DecryptText(string input, string password)
- {
- // Get the bytes of the string
- byte[] bytesToBeDecrypted = Convert.FromBase64String(input);
- byte[] passwordBytes = UTF8Encoding.UTF8.GetBytes(password);
- passwordBytes = SHA256.Create().ComputeHash(passwordBytes);
- byte[] bytesDecrypted = AES_Decrypt(bytesToBeDecrypted, passwordBytes);
- return UTF8Encoding.UTF8.GetString(bytesDecrypted);
- }
- public static byte[] AES_Decrypt(byte[] bytesToBeDecrypted, byte[] passwordBytes)
- {
- byte[] decryptedBytes = null;
- using (RijndaelManaged AES = new RijndaelManaged())
- {
- AES.KeySize = 256;
- AES.BlockSize = 128;
- AES.Mode = CipherMode.ECB;
- AES.Padding = PaddingMode.PKCS7;
- AES.Key = passwordBytes;
- using (ICryptoTransform decrypto = AES.CreateDecryptor())
- {
- decryptedBytes = decrypto.TransformFinalBlock(bytesToBeDecrypted, 0, bytesToBeDecrypted.Length);
- }
- }
- return decryptedBytes;
- }
- }
- }
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