public OutputResponseMarca VerificaMarca(byte[] filep7m, byte[] fileTSR)
{
OutputResponseMarca outputMarca = new OutputResponseMarca();
BusinessLogic.Documenti.DigitalSignature.VerifyTimeStamp checkMarca = new BusinessLogic.Documenti.DigitalSignature.VerifyTimeStamp();
outputMarca = checkMarca.Verify(filep7m, fileTSR);
return(outputMarca);
}
/// <summary>
///
/// </summary>
/// <param name="TimeStampQuery"></param>
/// <returns></returns>
public OutputResponseMarca getTimeStamp(InputMarca TimeStampQuery)
{
OutputResponseMarca outputMarca = new OutputResponseMarca();
byte[] dati = String_To_Bytes(TimeStampQuery.file_p7m);
//SHA1 sha1 = SHA1CryptoServiceProvider.Create();
//byte[] hash = sha1.ComputeHash(dati);
SHA256Managed sha256 = new SHA256Managed();
byte[] hash = sha256.ComputeHash(dati);
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
reqGen.SetCertReq(true);
//Funzione randomica per il Nonce.
//RandomNumberGenerator nRand = new RNGCryptoServiceProvider();
long casuale = (long)nRandom.Next();
//TimeStampRequest tsReq = reqGen.Generate(TspAlgorithms.Sha1, hash, BigInteger.ValueOf(casuale));
TimeStampRequest tsReq = reqGen.Generate(TspAlgorithms.Sha256, hash, BigInteger.ValueOf(casuale));
byte[] tsData = tsReq.GetEncoded();
string urlTSA = string.Empty;
if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings["URL_TSA"]))
{
urlTSA = ConfigurationManager.AppSettings["URL_TSA"].ToString();
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(urlTSA);
req.Method = "POST";
req.ContentType = "application/timestamp-query";
//Username e password per accedere alla Time Stamping Authority
string pwd = string.Empty;
if (!string.IsNullOrEmpty(ConfigurationManager.AppSettings["PASSWORD_UTENTE_TSA"]))
{
pwd = ConfigurationManager.AppSettings["PASSWORD_UTENTE_TSA"].ToString();
req.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(Encoding.ASCII.GetBytes(pwd)));
}
req.ContentLength = tsData.Length;
Stream reqStream = req.GetRequestStream();
reqStream.Write(tsData, 0, tsData.Length);
reqStream.Close();
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
if (res == null)
{
outputMarca.esito = "KO";
outputMarca.descrizioneErrore = "Impossibile contattare la TSA o autorizzazione negata";
return(outputMarca);
}
else
{
Stream resStream = new BufferedStream(res.GetResponseStream());
TimeStampResponse tsRes = new TimeStampResponse(resStream);
resStream.Close();
BusinessLogic.Documenti.DigitalSignature.VerifyTimeStamp checkMarca = new BusinessLogic.Documenti.DigitalSignature.VerifyTimeStamp();
outputMarca = checkMarca.Verify(tsReq, tsRes);
}
}
else
{
outputMarca.esito = "KO";
outputMarca.descrizioneErrore = "Impossibile contattare la TSA o url configurata errata!";
return(outputMarca);
}
return(outputMarca);
}