public static byte[] Decrypt(byte[] data, string keysPair)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (keysPair == null)
{
throw new ArgumentNullException(nameof(keysPair));
}
CryptoHelper.Separate(out var encryptedKey, out var encryptedData, data, AsymmetricEncryption.KeySize);
var commonKey = AsymmetricEncryption.Decrypt(encryptedKey, keysPair);
return(SymmetricEncryption.Decrypt(encryptedData, commonKey));
}
public static byte[] Encrypt(byte[] data, string publicKey)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (publicKey == null)
{
throw new ArgumentNullException(nameof(publicKey));
}
var commonKey = SymmetricEncryption.GenerateKey();
var encryptedKey = AsymmetricEncryption.Encrypt(commonKey, publicKey);
var encryptedData = SymmetricEncryption.Encrypt(data, commonKey);
CryptoHelper.Concat(encryptedKey, encryptedData, out var result);
return(result);
}
public static void Encrypt(Stream input, Stream output, string publicKey)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
if (publicKey == null)
{
throw new ArgumentNullException(nameof(publicKey));
}
var commonKey = SymmetricEncryption.GenerateKey();
var encryptedKey = AsymmetricEncryption.Encrypt(commonKey, publicKey);
output.Write(encryptedKey, 0, encryptedKey.Length);
SymmetricEncryption.Encrypt(input, output, commonKey);
}
public static void Decrypt(Stream input, Stream output, string keysPair)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
if (keysPair == null)
{
throw new ArgumentNullException(nameof(keysPair));
}
var encryptedKey = new byte[AsymmetricEncryption.KeySize];
input.Read(encryptedKey, 0, encryptedKey.Length);
var commonKey = AsymmetricEncryption.Decrypt(encryptedKey, keysPair);
SymmetricEncryption.Decrypt(input, output, commonKey);
}
public static AsymmetricKeys GenerateKeys() => AsymmetricEncryption.GenerateKeys();
