public static void CreateSignedEnvelope(string plainTextFile, int keySize, string receiverPublicKeyFilePath,
string senderPrivateKeyFilePath, string outputFilePath)
{
var tmpEnvelopeFilePath = Environment.CurrentDirectory + @"\Files\tmp\envelope_tmp.txt";
DigitalEnvelope.CreateEnvelope(plainTextFile, keySize, receiverPublicKeyFilePath,
tmpEnvelopeFilePath);
DigitalSignature.CreateEnvelopeSignature(tmpEnvelopeFilePath, keySize, senderPrivateKeyFilePath,
outputFilePath);
}
