//public static byte[] EncryptWithDerivedPassword(byte[] bytesToBeEncrypted, string password)
//{
// CRYPTO.CryptoInformation cryptoInformation = new CryptoInformation();
// cryptoInformation.SetCryptoPassword(password);
// var derivekey = GetDerived(passwordBytes);
// return EncryptWithDerivedKey(bytesToBeEncrypted, derivekey);
//}
//public static byte[] EncryptWithDerivedKey(byte[] bytesToBeEncrypted, Rfc2898DeriveBytes passwordDerived)
//{
// const int keysize = 256;
// const int ivsize = 128;
// byte[] deriverdkey = passwordDerived.GetBytes(keysize / 8);
// byte[] deriverdIV = passwordDerived.GetBytes(ivsize / 8);
// CRYPTO.CryptoInformation()
// return Encrypt(bytesToBeEncrypted, deriverdkey, deriverdIV);
//}
/// <summary>
/// Encryptage binaire AES
/// </summary>
/// <param name="bytesToBeEncrypted">data</param>
/// <param name="passwordBytes">password</param>
/// <param name="WithBeforeSalt">Ajoutera un bloc 16byte aléatoire au début</param>
/// <returns></returns>
public static byte[] Encrypt(byte[] bytesToBeEncrypted, ICryptoOption cryptoInformation)
{
if (cryptoInformation == null)
{
throw new ArgumentNullException("cryptoInformation");
}
if (bytesToBeEncrypted == null)
{
return(null);
}
byte[] encryptedBytes = null;
System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch();
using (MemoryStream ms = new MemoryStream())
{
using (RijndaelManaged AES = new RijndaelManaged())
{
//AES.KeySize = 256;
//AES.BlockSize = 128;
//AES.Padding= PaddingMode. = null;
AES.Key = cryptoInformation.GetCryptoKeyBytes(); //passwordDerived.GetBytes(AES.KeySize / 8);
AES.IV = cryptoInformation.GetCryptoIVBytes();
//AES.IV = GenerateRandomBytes(16); //passwordDerived.GetBytes(AES.BlockSize / 8); //InitializedVector
AES.Mode = CipherMode.CBC;
using (var cs = new CryptoStream(ms, AES.CreateEncryptor(), CryptoStreamMode.Write))
{
cs.Write(bytesToBeEncrypted, 0, bytesToBeEncrypted.Length);
cs.Close();
}
encryptedBytes = ms.ToArray();
}
}
return(encryptedBytes);
//return Encrypt(bytesToBeEncrypted, GetDerived(passwordBytes), WithAdditionalSalt);
}
///// <summary>
///// Décryptage Binaire AES
///// </summary>
//public static byte[] Decrypt(byte[] bytesToBeDecrypted, string password, string initializationVector = null)
//{
// // Hash the password with SHA256
// byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
// passwordBytes = SHA256.Create().ComputeHash(passwordBytes);
// // Vecteur d'initialisation
// byte[] bytesInitializationVector = (!string.IsNullOrEmpty(initializationVector)) ? Encoding.UTF8.GetBytes(initializationVector) : new byte[16];
// return Decrypt(bytesToBeDecrypted, passwordBytes, bytesInitializationVector);
//}
///// <summary>
///// Décryptage Binaire AES
///// </summary>
//public static byte[] DecryptWithDerivedKey(byte[] bytesToBeDecrypted, Rfc2898DeriveBytes passwordDerived)
//{
// const int keysize = 256;
// const int BlockSize = 128;
// byte[] deriverdkey = passwordDerived.GetBytes(keysize / 8);
// byte[] deriverdIV = passwordDerived.GetBytes(BlockSize / 8);
// return Decrypt(bytesToBeDecrypted, deriverdkey, deriverdIV);
//}
///// <summary>
///// Décryptage Binaire AES
///// </summary>
//public static byte[] DecryptWithDerivedKey(byte[] bytesToBeDecrypted, string password)
//{
// // Hash the password with SHA256
// byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
// passwordBytes = SHA256.Create().ComputeHash(passwordBytes); // permet d'avoir la clef sur 32 byte
// var derivekey = GetDerived(passwordBytes);
// return DecryptWithDerivedKey(bytesToBeDecrypted, derivekey);
//}
/// <summary>
/// Décryptage Binaire AES
/// </summary>
public static byte[] Decrypt(byte[] bytesToBeDecrypted, ICryptoOption cryptoInformation)
{
if (cryptoInformation == null)
{
throw new ArgumentNullException("cryptoInformation");
}
if (bytesToBeDecrypted == null)
{
return(null);
}
byte[] decryptedBytes = null;
using (MemoryStream ms = new MemoryStream())
{
using (RijndaelManaged AES = new RijndaelManaged())
{
AES.KeySize = 256;
AES.BlockSize = 128;
AES.Key = cryptoInformation.GetCryptoKeyBytes();
AES.IV = cryptoInformation.GetCryptoIVBytes();
AES.Mode = CipherMode.CBC;
using (var cs = new CryptoStream(ms, AES.CreateDecryptor(), CryptoStreamMode.Write))
{
cs.Write(bytesToBeDecrypted, 0, bytesToBeDecrypted.Length);
cs.Close();
}
decryptedBytes = ms.ToArray();
}
}
return(decryptedBytes);
}
