/// <summary>
/// Decrypt binary data
/// </summary>
public byte[] DecryptData(EncryptedBlob blob, string private_asymmetric_key)
{
_rsa.FromXmlString(private_asymmetric_key);
_aes.Key = _rsa.Decrypt(blob.EncryptedSymmetricKey, true);
_aes.IV = _rsa.Decrypt(blob.EncryptedSymmetricIV, true);
using (ICryptoTransform decryptor = _aes.CreateDecryptor())
{
return(decryptor.TransformFinalBlock(blob.EncryptedData, 0, blob.EncryptedData.Length));
}
}
/// <summary>
/// Encrypt binary data
/// </summary>
public EncryptedBlob EncryptData(byte[] raw_binary_data, string public_asymmetric_key)
{
_aes.GenerateKey();
_aes.GenerateIV();
byte[] encrypted_data;
using (ICryptoTransform encryptor = _aes.CreateEncryptor())
{
encrypted_data = encryptor.TransformFinalBlock(raw_binary_data, 0, raw_binary_data.Length);
}
EncryptedBlob blob = new EncryptedBlob();
blob.EncryptedData = encrypted_data;
_rsa.FromXmlString(public_asymmetric_key);
blob.EncryptedSymmetricKey = _rsa.Encrypt(_aes.Key, true);
blob.EncryptedSymmetricIV = _rsa.Encrypt(_aes.IV, true);
return(blob);
}
/// <summary>
/// Decrypt a string
/// </summary>
public string DecryptString(EncryptedBlob blob, string private_asymmetric_key)
{
return(_unicode.GetString(DecryptData(blob, private_asymmetric_key)));
}
