/// <summary>
/// Unprotects the specified data.
/// </summary>
/// <param name="data">The data.</param>
/// <param name="entropy">The entropy.</param>
/// <returns></returns>
public byte[] Unprotect(byte[] data, string entropy = "")
{
var validated = _sign.Decode(data);
var decoded = _encrypt.Decode(validated);
//need to reverse things done in protect before returning: subtract entropy from the end and ensure it matches
var entropyBytes = GetBytes(entropy);
var decodedEntropy = new byte[entropyBytes.Length];
var decodedDataLength = decoded.Length - entropyBytes.Length;
Array.Copy(decoded, decodedDataLength, decodedEntropy, 0, entropyBytes.Length);
var rez = decodedEntropy.SequenceEqual(entropyBytes) ? GetSubArray(decoded, decodedDataLength) : null;
return(rez);
}
/// <summary>
/// Unprotects the specified data.
/// </summary>
/// <param name="data">The data.</param>
/// <param name="entropy">The entropy.</param>
/// <returns></returns>
public byte[] Unprotect(byte[] data, string entropy = "")
{
var validated = _sign.Decode(data);
return(_encrypt.Decode(validated));
}