public static Byte[] fromAES(String sPass, Byte[] bMessage)
{
// Key mat
hPickman.AES_KEY_MAT oKeyMat = ComputeSha256KeyMat(sPass);
// Encrypt
using (Aes aes = Aes.Create())
{
aes.Key = oKeyMat.bKey;
aes.IV = oKeyMat.bIV;
ICryptoTransform dec = aes.CreateDecryptor(aes.Key, aes.IV);
using (MemoryStream ms = new MemoryStream())
{
using (CryptoStream cs = new CryptoStream(ms, dec, CryptoStreamMode.Write))
{
using (BinaryWriter sw = new BinaryWriter(cs))
{
sw.Write(bMessage);
}
return(ms.ToArray());
}
}
}
}
public static hPickman.AES_KEY_MAT ComputeSha256KeyMat(String sPass)
{
hPickman.AES_KEY_MAT oKeyMat = new hPickman.AES_KEY_MAT();
Encoding enc = Encoding.UTF8;
SHA256 sha256 = new SHA256CryptoServiceProvider();
oKeyMat.bKey = sha256.ComputeHash(enc.GetBytes(sPass));
// Hash sPass reverse
oKeyMat.bIV = sha256.ComputeHash(enc.GetBytes(new String(sPass.Reverse().ToArray())));
Array.Resize(ref oKeyMat.bIV, 16);
return(oKeyMat);
}
