public TimeStampResponse GetTimeStampResponse(string digestAlgorithmOid, byte[] digest)
{
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
// tsqGenerator.setReqPolicy("1.3.6.1.4.1.601.10.3.1");
BigInteger nonce = BigInteger.ValueOf(DateTime.Now.Ticks + Environment.TickCount);
TimeStampRequest request = tsqGenerator.Generate(digestAlgorithmOid, digest, nonce);
TimeStampTokenGenerator tsTokenGen = new TimeStampTokenGenerator(keyPair.Private, cert, TspAlgorithms.Sha256, "1.2");
var certs = new ArrayList
{
cert
};
var certStore = X509StoreFactory.Create("Certificate/Collection", new X509CollectionStoreParameters(certs));
tsTokenGen.SetCertificates(certStore);
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
//TimeStampRequest request = reqGen.Generate(TspAlgorithms.Sha1, new byte[20], BigInteger.ValueOf(100));
TimeStampResponseGenerator tsRespGen = new TimeStampResponseGenerator(tsTokenGen, TspAlgorithms.Allowed);
TimeStampResponse tsResp = tsRespGen.Generate(request, BigInteger.ValueOf(23), DateTime.UtcNow);
tsResp = new TimeStampResponse(tsResp.GetEncoded());
return(tsResp);
}
/// <summary>
/// verifica implicitamente la marca a partire dalle sole informazioni contenute nel file TSR
/// </summary>
/// <param name="fileTSR"></param>
/// <returns></returns>
public OutputResponseMarca Verify(byte[] fileTSR)
{
TimeStampRequest tsReq = null;
TimeStampResponse tsRes = null;
if (fileTSR.Length > 0)
{
tsRes = getTsRes(fileTSR);
}
else
{
logger.Debug("File TSR mancante oppure corrotto!");
return(null);
}
TimeStampRequestGenerator tsqGen = new TimeStampRequestGenerator();
//quando impostato a true significa che nella risposta della TSA deve essere incluso il certificato della firma
tsqGen.SetCertReq(true);
//fra i parametri non metto il Nonce perchè questa è una verifica off-line!!!
byte[] fileHash = tsRes.TimeStampToken.TimeStampInfo.TstInfo.MessageImprint.GetHashedMessage();
tsReq = tsqGen.Generate(TspAlgorithms.Sha256, fileHash);
return(checkMarca(tsRes, tsReq));
}
private TimeStampRequest CreateRfc3161RequestBody(byte[] hash, string digestMethod)
{
String digestOid = CryptoConfig.MapNameToOID(CryptoConfig.CreateFromName(digestMethod).GetType().ToString());
TimeStampRequestGenerator tsprg = new TimeStampRequestGenerator();
tsprg.SetCertReq(true);
return(tsprg.Generate(digestOid, hash));
}
public byte[] GetTimeStampToken(byte[] imprint)
{
byte[] respBytes = null;
//// Setup the time stamp request
var tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
//// tsqGenerator.setReqPolicy("1.3.6.1.4.1.601.10.3.1");
var nonce = BigInteger.ValueOf(DateTime.Now.Ticks + Environment.TickCount);
var request = tsqGenerator.Generate(DigestAlgorithms.GetAllowedDigests(this.digestAlgorithm), imprint, nonce);
var requestBytes = request.GetEncoded();
//// Call the communications layer
respBytes = this.GetTsaResponse(requestBytes);
//// Handle the TSA response
var response = new TimeStampResponse(respBytes);
//// validate communication level attributes (RFC 3161 PKIStatus)
response.Validate(request);
var failure = response.GetFailInfo();
var value = (failure == null) ? 0 : failure.IntValue;
if (value != 0)
{
//// @todo: Translate value of 15 error codes defined by PKIFailureInfo to string
throw new IOException(MessageLocalization.GetComposedMessage("invalid.tsa.1.response.code.2", this.url, value));
}
//// @todo: validate the time stap certificate chain (if we want assure we do not sign using an invalid timestamp).
//// extract just the time stamp token (removes communication status info)
var timeStampToken = response.TimeStampToken;
if (timeStampToken == null)
{
throw new IOException(MessageLocalization.GetComposedMessage("tsa.1.failed.to.return.time.stamp.token.2", this.url, response.GetStatusString()));
}
var timeStampInfo = timeStampToken.TimeStampInfo; // to view details
var encoded = timeStampToken.GetEncoded();
Log.Application.Info("Timestamp generated: " + timeStampInfo.GenTime);
if (this.tsaInfo != null)
{
this.tsaInfo.InspectTimeStampTokenInfo(timeStampInfo);
}
//// Update our token size estimate for the next call (padded to be safe)
this.tokenSizeEstimate = encoded.Length + 32;
return(encoded);
}
public byte[] GetTimeStampToken(byte[] imprint)
{
byte[] respBytes = null;
var tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
tsqGenerator.SetReqPolicy("2.16.76.1.6.6");
var nonce = BigInteger.ValueOf(DateTime.Now.Ticks + Environment.TickCount);
var request = tsqGenerator.Generate(DigestAlgorithms.GetAllowedDigest(this.digestAlgorithm), imprint, nonce);
var requestBytes = request.GetEncoded();
respBytes = this.GetTsaResponse(requestBytes);
var response = new TimeStampResponse(respBytes);
response.Validate(request);
var failure = response.GetFailInfo();
var value = (failure == null) ? 0 : failure.IntValue;
if (value != 0)
{
//// @todo: Translate value of 15 error codes defined by PKIFailureInfo to string
var mensagem = string.Format(
"invalid.tsa.1.response.code.2 {0} {1}",
this.url, response.GetStatusString());
throw new IOException(mensagem);
}
//// @todo: validate the time stap certificate chain (if we want assure we do not sign using an invalid timestamp).
var timeStampToken = response.TimeStampToken;
if (timeStampToken == null)
{
var mensagem = string.Format("tsa.1.failed.to.return.time.stamp.token.2 {0} {1}",
this.url, response.GetStatusString());
throw new IOException(mensagem);
}
var timeStampInfo = timeStampToken.TimeStampInfo;
var encoded = timeStampToken.GetEncoded();
Console.WriteLine("Timestamp generated: " + timeStampInfo.GenTime);
if (this.tsaInfo != null)
{
this.tsaInfo.InspectTimeStampTokenInfo(timeStampInfo);
}
this.tokenSizeEstimate = encoded.Length + 32;
return(encoded);
}
/// <summary>Get RFC 3161 timeStampToken.</summary>
/// <remarks>
/// Get RFC 3161 timeStampToken.
/// Method may return null indicating that timestamp should be skipped.
/// </remarks>
/// <param name="imprint">data imprint to be time-stamped</param>
/// <returns>encoded, TSA signed data of the timeStampToken</returns>
/// <exception cref="System.IO.IOException"/>
/// <exception cref="Org.BouncyCastle.Tsp.TSPException"/>
public virtual byte[] GetTimeStampToken(byte[] imprint)
{
byte[] respBytes = null;
// Setup the time stamp request
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
if (tsaReqPolicy != null && tsaReqPolicy.Length > 0)
{
tsqGenerator.SetReqPolicy(tsaReqPolicy);
}
// tsqGenerator.setReqPolicy("1.3.6.1.4.1.601.10.3.1");
BigInteger nonce = BigInteger.ValueOf(SystemUtil.GetTimeBasedSeed());
TimeStampRequest request = tsqGenerator.Generate(new DerObjectIdentifier(DigestAlgorithms.GetAllowedDigest
(digestAlgorithm)), imprint, nonce);
byte[] requestBytes = request.GetEncoded();
// Call the communications layer
respBytes = GetTSAResponse(requestBytes);
// Handle the TSA response
TimeStampResponse response = new TimeStampResponse(respBytes);
// validate communication level attributes (RFC 3161 PKIStatus)
response.Validate(request);
PkiFailureInfo failure = response.GetFailInfo();
int value = (failure == null) ? 0 : failure.IntValue;
if (value != 0)
{
// @todo: Translate value of 15 error codes defined by PKIFailureInfo to string
throw new PdfException(PdfException.InvalidTsa1ResponseCode2).SetMessageParams(tsaURL, value.ToString());
}
// @todo: validate the time stap certificate chain (if we want
// assure we do not sign using an invalid timestamp).
// extract just the time stamp token (removes communication status info)
TimeStampToken tsToken = response.TimeStampToken;
if (tsToken == null)
{
throw new PdfException(PdfException.Tsa1FailedToReturnTimeStampToken2).SetMessageParams(tsaURL, response.GetStatusString
());
}
TimeStampTokenInfo tsTokenInfo = tsToken.TimeStampInfo;
// to view details
byte[] encoded = tsToken.GetEncoded();
LOGGER.Info("Timestamp generated: " + tsTokenInfo.GenTime);
if (tsaInfo != null)
{
tsaInfo.InspectTimeStampTokenInfo(tsTokenInfo);
}
// Update our token size estimate for the next call (padded to be safe)
this.tokenSizeEstimate = encoded.Length + 32;
return(encoded);
}
/// <exception cref="System.Exception"/>
public virtual byte[] GetTimeStampToken(byte[] imprint)
{
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
BigInteger nonce = BigInteger.ValueOf(SystemUtil.GetTimeBasedSeed());
TimeStampRequest request = tsqGenerator.Generate(new DerObjectIdentifier(DigestAlgorithms.GetAllowedDigest
(DIGEST_ALG)), imprint, nonce);
return(new TestTimestampTokenBuilder(tsaCertificateChain, tsaPrivateKey).CreateTimeStampToken(request));
}
private void testAccuracyWithCertsAndOrdering(AsymmetricKeyParameter privateKey, X509Certificate cert, IX509Store certs)
{
TimeStampTokenGenerator tsTokenGen = new TimeStampTokenGenerator(
privateKey, cert, TspAlgorithms.MD5, "1.2.3");
tsTokenGen.SetCertificates(certs);
tsTokenGen.SetAccuracySeconds(1);
tsTokenGen.SetAccuracyMillis(2);
tsTokenGen.SetAccuracyMicros(3);
tsTokenGen.SetOrdering(true);
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
reqGen.SetCertReq(true);
TimeStampRequest request = reqGen.Generate(TspAlgorithms.Sha1, new byte[20], BigInteger.ValueOf(100));
TimeStampResponseGenerator tsRespGen = new TimeStampResponseGenerator(tsTokenGen, TspAlgorithms.Allowed);
//
// This is different to the Java API.
//
TimeStampResponse tsResp = tsRespGen.Generate(request, BigInteger.ValueOf(23), DateTime.UtcNow);
tsResp = new TimeStampResponse(tsResp.GetEncoded());
TimeStampToken tsToken = tsResp.TimeStampToken;
tsResp.Validate(request);
TimeStampTokenInfo tstInfo = tsToken.TimeStampInfo;
GenTimeAccuracy accuracy = tstInfo.GenTimeAccuracy;
Assert.IsTrue(1 == accuracy.Seconds);
Assert.IsTrue(2 == accuracy.Millis);
Assert.IsTrue(3 == accuracy.Micros);
Assert.IsTrue(new BigInteger("23").Equals(tstInfo.SerialNumber));
Assert.IsTrue("1.2.3" == tstInfo.Policy);
IX509Store store = tsToken.GetCertificates();
ICollection certificates = store.GetMatches(null);
Assert.IsTrue(2 == certificates.Count);
}
/**
* Get RFC 3161 timeStampToken.
* Method may return null indicating that timestamp should be skipped.
* @param imprint data imprint to be time-stamped
* @return encoded, TSA signed data of the timeStampToken
*/
public virtual byte[] GetTimeStampToken(byte[] imprint)
{
// Setup the time stamp request
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
// tsqGenerator.setReqPolicy("1.3.6.1.4.1.601.10.3.1");
BigInteger nonce = BigInteger.ValueOf(DateTime.Now.Ticks + Environment.TickCount);
TimeStampRequest request = tsqGenerator.Generate(TsaDigestAlgorithmOID, imprint, nonce);
byte[] requestBytes = request.GetEncoded();
// Call the communications layer
var respBytes = GetTSAResponse(requestBytes);
// Handle the TSA response
TimeStampResponse response = new TimeStampResponse(respBytes);
// validate communication level attributes (RFC 3161 PKIStatus)
response.Validate(request);
var failure = response.GetFailInfo();
int value = (failure == null) ? 0 : failure.IntValue;
if (value != 0)
{
// @todo: Translate value of 15 error codes defined by PKIFailureInfo to string
throw new IOException($"invalid.tsa.1.response.code.2, {TsaURL}, {value}");
}
// @todo: validate the time stap certificate chain (if we want
// assure we do not sign using an invalid timestamp).
// extract just the time stamp token (removes communication status info)
TimeStampToken tsToken = response.TimeStampToken;
if (tsToken == null)
{
throw new IOException($"tsa.1.failed.to.return.time.stamp.token.2, {TsaURL}, {response.GetStatusString()}");
}
TimeStampTokenInfo tsTokenInfo = tsToken.TimeStampInfo; // to view details
byte[] encoded = tsToken.GetEncoded();
logger.Info("Timestamp generated: " + tsTokenInfo.GenTime);
if (tsaInfo != null)
{
tsaInfo.InspectTimeStampTokenInfo(tsTokenInfo);
}
// Update our token size estimate for the next call (padded to be safe)
tokenSizeEstimate = encoded.Length + 32;
return(encoded);
}
/// <summary>
/// Realiza la petición de sellado del hash que se pasa como parametro y devuelve la
/// respuesta del servidor.
/// </summary>
/// <param name="url"></param>
/// <param name="hash"></param>
/// <param name="digestMethod"></param>
/// <param name="certReq"></param>
/// <returns></returns>
public static byte[] GetTimeStamp(string url, byte[] hash, DigestMethod digestMethod, bool certReq)
{
string digestAlg;
TimeStampRequestGenerator tsrq = new TimeStampRequestGenerator();
tsrq.SetCertReq(certReq);
if (digestMethod == DigestMethod.SHA1)
{
digestAlg = TspAlgorithms.Sha1;
}
else if (digestMethod == DigestMethod.SHA256)
{
digestAlg = TspAlgorithms.Sha256;
}
else
{
digestAlg = TspAlgorithms.Sha512;
}
TimeStampRequest tsr = tsrq.Generate(digestAlg, hash, BigInteger.ValueOf(100));
byte[] data = tsr.GetEncoded();
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
req.ContentType = "application/timestamp-query";
req.ContentLength = data.Length;
Stream reqStream = req.GetRequestStream();
reqStream.Write(data, 0, data.Length);
reqStream.Close();
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
if (res == null)
{
return(null);
}
else
{
Stream resStream = new BufferedStream(res.GetResponseStream());
TimeStampResponse tsRes = new TimeStampResponse(resStream);
resStream.Close();
return(tsRes.TimeStampToken.GetEncoded());
}
}
/// <summary>
/// Realiza la petición de sellado del hash que se pasa como parametro y devuelve la
/// respuesta del servidor.
/// </summary>
/// <param name="hash"></param>
/// <param name="digestMethod"></param>
/// <param name="certReq"></param>
/// <returns></returns>
public byte[] GetTimeStamp(byte[] hash, DigestMethod digestMethod, bool certReq)
{
TimeStampRequestGenerator tsrq = new TimeStampRequestGenerator();
tsrq.SetCertReq(certReq);
BigInteger nonce = BigInteger.ValueOf(DateTime.Now.Ticks);
TimeStampRequest tsr = tsrq.Generate(digestMethod.Oid, hash, nonce);
byte[] data = tsr.GetEncoded();
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(_url);
req.Method = "POST";
req.ContentType = "application/timestamp-query";
req.ContentLength = data.Length;
if (!string.IsNullOrEmpty(_user) && !string.IsNullOrEmpty(_password))
{
string auth = string.Format("{0}:{1}", _user, _password);
req.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.Default.GetBytes(auth), Base64FormattingOptions.None);
}
Stream reqStream = req.GetRequestStream();
reqStream.Write(data, 0, data.Length);
reqStream.Close();
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
if (res.StatusCode != HttpStatusCode.OK)
{
throw new Exception("El servidor ha devuelto una respuesta no válida");
}
else
{
Stream resStream = new BufferedStream(res.GetResponseStream());
TimeStampResponse tsRes = new TimeStampResponse(resStream);
resStream.Close();
tsRes.Validate(tsr);
if (tsRes.TimeStampToken == null)
{
throw new Exception("El servidor no ha devuelto ningún sello de tiempo");
}
return(tsRes.TimeStampToken.GetEncoded());
}
}
private bool TestaTimeStamp(string URL)
{
SHA1 sha1 = SHA1CryptoServiceProvider.Create();
byte[] hash = sha1.ComputeHash(Encoding.ASCII.GetBytes("TESTE DE SELO"));
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
reqGen.SetCertReq(true);
TimeStampRequest tsReq = reqGen.Generate(TspAlgorithms.Sha1, hash, BigInteger.ValueOf(100)); byte[] tsData = tsReq.GetEncoded();
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(URL);
req.Method = "POST";
req.ContentType = "application/timestamp-query";
req.Headers.Add("Authorization", "Basic " + Convert.ToBase64String(Encoding.ASCII.GetBytes("9024:")));
req.ContentLength = tsData.Length;
Stream reqStream = req.GetRequestStream();
reqStream.Write(tsData, 0, tsData.Length);
reqStream.Close();
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
if (res == null)
{
return(false);
}
else
{
Stream resStream = new BufferedStream(res.GetResponseStream());
TimeStampResponse tsRes = new TimeStampResponse(resStream); resStream.Close();
try
{
tsRes.Validate(tsReq);
resStream.Close();
return(true);
}
catch (TspException e)
{
resStream.Close();
return(false);
}
//saveresponse
}
}
private byte[] GetTimestampToken(byte[] imprint)
{
byte[] numArray;
try
{
Licensing.ShowDemoMessage();
string value = (new Oid(this.TimeStamping.HashAlgorithm.ToString())).Value;
TimeStampRequestGenerator timeStampRequestGenerator = new TimeStampRequestGenerator();
timeStampRequestGenerator.SetCertReq(true);
if (this.TimeStamping.PolicyOid != null)
{
timeStampRequestGenerator.SetReqPolicy(this.TimeStamping.PolicyOid.Value.ToString());
}
TimeStampRequest timeStampRequest = null;
if (!this.TimeStamping.UseNonce)
{
timeStampRequest = timeStampRequestGenerator.Generate(value, imprint);
}
else
{
long tickCount = (long)Environment.TickCount;
DateTime now = DateTime.Now;
BigInteger bigInteger = BigInteger.ValueOf(tickCount + now.Ticks);
timeStampRequest = timeStampRequestGenerator.Generate(value, imprint, bigInteger);
}
byte[] tSAResponse = this.GetTSAResponse(timeStampRequest.GetEncoded());
TimeStampResponse timeStampResponse = new TimeStampResponse(tSAResponse);
timeStampResponse.Validate(timeStampRequest);
if ((timeStampResponse.GetFailInfo() == null ? 0 : 1) != 0)
{
string[] invalidTimeStampingResponse = new string[] { CustomExceptions.InvalidTimeStampingResponse, "Status: ", null, null, null };
invalidTimeStampingResponse[2] = timeStampResponse.Status.ToString();
invalidTimeStampingResponse[3] = "; Status information : ";
invalidTimeStampingResponse[4] = timeStampResponse.GetStatusString();
throw new WebException(string.Concat(invalidTimeStampingResponse));
}
if (timeStampResponse.TimeStampToken == null)
{
throw new WebException(CustomExceptions.InvalidTimeStampingResponse);
}
numArray = tSAResponse;
}
catch
{
throw;
}
return(numArray);
}
/**
* Get timestamp token - Bouncy Castle request encoding / decoding layer
*/
protected internal byte[] GetTimeStampToken(byte[] imprint)
{
byte[] respBytes = null;
// Setup the time stamp request
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
// tsqGenerator.setReqPolicy("1.3.6.1.4.1.601.10.3.1");
BigInteger nonce = BigInteger.ValueOf(DateTime.Now.Ticks + Environment.TickCount);
TimeStampRequest request = tsqGenerator.Generate(X509ObjectIdentifiers.IdSha1.Id, imprint, nonce);
byte[] requestBytes = request.GetEncoded();
// Call the communications layer
respBytes = GetTSAResponse(requestBytes);
// Handle the TSA response
TimeStampResponse response = new TimeStampResponse(respBytes);
// validate communication level attributes (RFC 3161 PKIStatus)
response.Validate(request);
PkiFailureInfo failure = response.GetFailInfo();
int value = (failure == null) ? 0 : failure.IntValue;
if (value != 0)
{
// @todo: Translate value of 15 error codes defined by PKIFailureInfo to string
throw new Exception("Invalid TSA '" + tsaURL + "' response, code " + value);
}
// @todo: validate the time stap certificate chain (if we want
// assure we do not sign using an invalid timestamp).
// extract just the time stamp token (removes communication status info)
TimeStampToken tsToken = response.TimeStampToken;
if (tsToken == null)
{
throw new Exception("TSA '" + tsaURL + "' failed to return time stamp token: " + response.GetStatusString());
}
TimeStampTokenInfo info = tsToken.TimeStampInfo; // to view details
byte[] encoded = tsToken.GetEncoded();
// Update our token size estimate for the next call (padded to be safe)
this.tokSzEstimate = encoded.Length + 32;
return(encoded);
}
public void TestCertReq()
{
TimeStampTokenGenerator tsTokenGen = new TimeStampTokenGenerator(
privateKey, cert, TspAlgorithms.MD5, "1.2");
tsTokenGen.SetCertificates(certs);
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
//
// request with certReq false
//
reqGen.SetCertReq(false);
TimeStampRequest request = reqGen.Generate(TspAlgorithms.Sha1, new byte[20], BigInteger.ValueOf(100));
TimeStampResponseGenerator tsRespGen = new TimeStampResponseGenerator(tsTokenGen, TspAlgorithms.Allowed);
TimeStampResponse tsResp = tsRespGen.Generate(request, BigInteger.ValueOf(23), DateTime.UtcNow);
tsResp = new TimeStampResponse(tsResp.GetEncoded());
TimeStampToken tsToken = tsResp.TimeStampToken;
Assert.IsNull(tsToken.TimeStampInfo.GenTimeAccuracy); // check for abscence of accuracy
Assert.AreEqual("1.2", tsToken.TimeStampInfo.Policy);
try
{
tsToken.Validate(cert);
}
catch (TspValidationException)
{
Assert.Fail("certReq(false) verification of token failed.");
}
IX509Store respCerts = tsToken.GetCertificates("Collection");
ICollection certsColl = respCerts.GetMatches(null);
if (certsColl.Count != 0)
{
Assert.Fail("certReq(false) found certificates in response.");
}
}
public virtual TimeStampResponse GetTimeStampResponse(string digestAlgorithmOID, byte[] digest)
{
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
// tsqGenerator.setReqPolicy("1.3.6.1.4.1.601.10.3.1");
BigInteger nonce = BigInteger.ValueOf(DateTime.Now.Ticks + Environment.TickCount);
TimeStampRequest request = tsqGenerator.Generate(digestAlgorithmOID, digest, nonce);
byte[] requestBytes = request.GetEncoded();
// Call the communications layer
var respBytes = GetTSAResponse(requestBytes);
// Handle the TSA response
return(new TimeStampResponse(respBytes));
}
private void certReqTest(AsymmetricKeyParameter privateKey, X509Certificate cert, IX509Store certs)
{
TimeStampTokenGenerator tsTokenGen = new TimeStampTokenGenerator(
privateKey, cert, TspAlgorithms.MD5, "1.2");
tsTokenGen.SetCertificates(certs);
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
reqGen.SetCertReq(false);
TimeStampRequest request = reqGen.Generate(TspAlgorithms.Sha1, new byte[20], BigInteger.ValueOf(100));
TimeStampResponseGenerator tsRespGen = new TimeStampResponseGenerator(tsTokenGen, TspAlgorithms.Allowed);
TimeStampResponse tsResp = tsRespGen.Generate(request, BigInteger.ValueOf(23), DateTime.UtcNow);
tsResp = new TimeStampResponse(tsResp.GetEncoded());
TimeStampToken tsToken = tsResp.TimeStampToken;
Assert.IsNull(tsToken.TimeStampInfo.GenTimeAccuracy); // check for abscence of accuracy
Assert.True("1.2".Equals(tsToken.TimeStampInfo.Policy));
try
{
tsToken.Validate(cert);
}
catch (TspValidationException)
{
Assert.Fail("certReq(false) verification of token failed.");
}
IX509Store store = tsToken.GetCertificates();
ICollection certsColl = store.GetMatches(null);
if (certsColl.Count > 0)
{
Assert.Fail("certReq(false) found certificates in response.");
}
}
private byte[] GenerateTimestampToken(byte[] signature, Uri timestampUri)
{
Log.Trace($"Timestamping with server: ${timestampUri}");
var request = WebRequest.CreateHttp(timestampUri);
request.ContentType = "application/timestamp-query";
request.Method = "POST";
request.Timeout = 15000;
var timeStampRequestGenerator = new TimeStampRequestGenerator();
timeStampRequestGenerator.SetCertReq(true);
using (var hasher = new SHA1Managed())
{
signature = hasher.ComputeHash(signature);
}
var timestampRequest = timeStampRequestGenerator.Generate(TspAlgorithms.Sha1, signature, new BigInteger(64, Random));
var timestampRequestRaw = timestampRequest.GetEncoded();
request.ContentLength = timestampRequestRaw.Length;
using (var requestStream = request.GetRequestStream())
{
requestStream.Write(timestampRequestRaw, 0, timestampRequestRaw.Length);
}
using (var response = request.GetResponse())
{
var responseStream = response.GetResponseStream();
if (responseStream == null)
{
throw new IOException("Timestmap server did not contain any response data");
}
using (var bufferedResponseStream = new BufferedStream(responseStream))
{
var timestampResponse = new TimeStampResponse(bufferedResponseStream);
timestampResponse.Validate(timestampRequest);
Log.Trace("Timestamping done");
return(timestampResponse.TimeStampToken.GetEncoded());
}
}
}
public const String ID_TIME_STAMP_TOKEN = "1.2.840.113549.1.9.16.2.14"; // RFC 3161 id-aa-timeStampToken
static public byte[] GetTimestampToken(String tsaURL, string tsaUserName, string tsaPassword, byte[] imprint, ref string error)
{
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
tsqGenerator.SetReqPolicy("1.3.6.1.4.1.601.10.3.1");
BigInteger nonce = BigInteger.ValueOf(DateTime.Now.Ticks);
TimeStampRequest request = tsqGenerator.Generate(X509ObjectIdentifiers.IdSha1.Id, imprint, nonce);
byte[] requestBytes = request.GetEncoded();
byte[] responseBytes = GetTSAResponse(tsaURL, tsaUserName, tsaPassword, requestBytes);
TimeStampResponse response = new TimeStampResponse(responseBytes);
response.Validate(request);
PkiFailureInfo failure = response.GetFailInfo();
int value = (failure == null) ? 0 : failure.IntValue;
if (value != 0)
{
error = string.Format(Resources.TSA_URL_ERROR, tsaURL, value);
return(null);
}
TimeStampToken tsToken = response.TimeStampToken;
if (tsToken == null)
{
error = string.Format(Resources.TSA_READ_ERROR, tsaURL);
return(null);
}
return(tsToken.GetEncoded());
}
public byte[] GetTimeStamp(byte[] hash, DigestMethod digestMethod, bool certReq)
{
TimeStampRequestGenerator timeStampRequestGenerator = new TimeStampRequestGenerator();
timeStampRequestGenerator.SetCertReq(certReq);
BigInteger nonce = BigInteger.ValueOf(DateTime.Now.Ticks);
TimeStampRequest timeStampRequest = timeStampRequestGenerator.Generate(digestMethod.Oid, hash, nonce);
byte[] encoded = timeStampRequest.GetEncoded();
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(_url);
httpWebRequest.Method = "POST";
httpWebRequest.ContentType = "application/timestamp-query";
httpWebRequest.ContentLength = encoded.Length;
if (!string.IsNullOrEmpty(_user) && !string.IsNullOrEmpty(_password))
{
string s = $"{_user}:{_password}";
httpWebRequest.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.Default.GetBytes(s), Base64FormattingOptions.None);
}
Stream requestStream = httpWebRequest.GetRequestStream();
requestStream.Write(encoded, 0, encoded.Length);
requestStream.Close();
HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
if (httpWebResponse.StatusCode != HttpStatusCode.OK)
{
throw new Exception("El servidor ha devuelto una respuesta no válida");
}
Stream stream = new BufferedStream(httpWebResponse.GetResponseStream());
TimeStampResponse timeStampResponse = new TimeStampResponse(stream);
stream.Close();
timeStampResponse.Validate(timeStampRequest);
if (timeStampResponse.TimeStampToken == null)
{
throw new Exception("El servidor no ha devuelto ningún sello de tiempo");
}
return(timeStampResponse.TimeStampToken.GetEncoded());
}
/// <summary>
/// Returns DER encoded time-stamp request.
/// </summary>
/// <returns>Byte array containing DER encoded request.</returns>
public byte[] ToByteArray()
{
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
TimeStampRequest tsreq;
tsqGenerator.SetCertReq(this.CertReq);
if (!string.IsNullOrEmpty(this.ReqPolicy))
{
tsqGenerator.SetReqPolicy(this.ReqPolicy);
}
if (null == this.Nonce)
{
tsreq = tsqGenerator.Generate(this.MessageImprint.HashAlgorithm, this.MessageImprint.HashedMessage);
}
else
{
tsreq = tsqGenerator.Generate(this.MessageImprint.HashAlgorithm, this.MessageImprint.HashedMessage, new Org.BouncyCastle.Math.BigInteger(this.Nonce));
}
return(tsreq.GetEncoded());
}
/// <summary>
/// Ottiene un oggetto TimeStampRequest a partire dall'array di byte del documento da marcare
/// </summary>
/// <param name="filep7m"></param>
/// <returns></returns>
protected TimeStampRequest getTsReq(byte[] filep7m, DerObjectIdentifier oid)
{
TimeStampRequestGenerator tsqGen = new TimeStampRequestGenerator();
//quando impostato a true significa che nella risposta della TSA deve essere incluso il certificato della firma
tsqGen.SetCertReq(true);
byte[] contentHash = null;
//string algorithm = Org.BouncyCastle.Security.DigestUtilities.GetAlgorithmName(oid);
string algorithm = oid.Id.ToString();
contentHash = Org.BouncyCastle.Security.DigestUtilities.CalculateDigest(algorithm, filep7m);
return(tsqGen.Generate(algorithm, contentHash));
/*
*
* TimeStampRequest tsq = null;
*
* if (hashOid.Equals("1.3.14.3.2.26"))
* {
* System.Security.Cryptography.SHA1 sh1 = new System.Security.Cryptography.SHA1CryptoServiceProvider();
* contentHash = sh1.ComputeHash(filep7m);
* tsq = tsqGen.Generate(TspAlgorithms.Sha1 , contentHash);
* }
* if (hashOid.Equals("2.16.840.1.101.3.4.2.1"))
* {
* SHA256Managed sh256 = new SHA256Managed();
* contentHash = sh256.ComputeHash(filep7m);
* tsq = tsqGen.Generate(TspAlgorithms.Sha256, contentHash);
* }
*
* //fra i parametri non metto il Nonce perchè questa è una verifica off-line!!!
* //TimeStampRequest tsq = tsqGen.Generate(TspAlgorithms.Sha1, contentHash);
*
* return tsq;
*/
}
public byte[] GetTimeStampToken(byte[] imprint)
{
TimeStampRequestGenerator tsqGenerator = new TimeStampRequestGenerator();
tsqGenerator.SetCertReq(true);
BigInteger nonce = BigInteger.ValueOf((long)(new TimeSpan(DateTime.Now.Ticks)).TotalMilliseconds);
TimeStampRequest request = tsqGenerator.Generate(new DerObjectIdentifier(
DigestAlgorithms.GetAllowedDigest(DEFAULTHASHALGORITHM)),
imprint, nonce);
JObject time = Timestamp(baseURL, Hex.ToHexString(request.GetMessageImprintDigest()),
accessToken);
String tst = (String)time.GetValue("token");
byte[] token = Base64.Decode(tst);
CmsSignedData cms = new CmsSignedData(token);
TimeStampToken tstToken = new TimeStampToken(cms);
return(tstToken.GetEncoded());
}
public void TestCertReq()
{
TimeStampTokenGenerator tsTokenGen = new TimeStampTokenGenerator(
privateKey, cert, TspAlgorithms.MD5, "1.2");
tsTokenGen.SetCertificates(certs);
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
//
// request with certReq false
//
reqGen.SetCertReq(false);
TimeStampRequest request = reqGen.Generate(TspAlgorithms.Sha1, new byte[20], BigInteger.ValueOf(100));
TimeStampResponseGenerator tsRespGen = new TimeStampResponseGenerator(tsTokenGen, TspAlgorithms.Allowed);
TimeStampResponse tsResp = tsRespGen.Generate(request, BigInteger.ValueOf(23), DateTime.UtcNow);
tsResp = new TimeStampResponse(tsResp.GetEncoded());
TimeStampToken tsToken = tsResp.TimeStampToken;
Assert.IsNull(tsToken.TimeStampInfo.GenTimeAccuracy); // check for abscence of accuracy
Assert.AreEqual("1.2", tsToken.TimeStampInfo.Policy);
try
{
tsToken.Validate(cert);
}
catch (TspValidationException)
{
Assert.Fail("certReq(false) verification of token failed.");
}
IX509Store respCerts = tsToken.GetCertificates("Collection");
ICollection certsColl = respCerts.GetMatches(null);
if (certsColl.Count != 0)
{
Assert.Fail("certReq(false) found certificates in response.");
}
}
/// <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);
}
/// <summary>
/// Creates timestamp from provided data.
/// </summary>
/// <returns>
/// <see cref="TimestampObject" />
/// </returns>
/// <exception cref="System.ArgumentNullException">
/// Hash algorithm not provided.
/// or
/// TSA URL not provided.
/// or
/// Timestamp output format not provided.
/// or
/// Data for timestamping not provided.</exception>
/// <exception cref="AbsoluteTimestamp.TimestampException">Cannot connect to TSA server.</exception>
/// <exception cref="TspValidationException"></exception>
public TimestampObject CreateTimestamp()
{
/* Check that everything has been provided */
if (0 == this.hashAlgorithm)
{
throw new ArgumentNullException("Hash algorithm not provided.");
}
if (String.IsNullOrWhiteSpace(this.tsaPrimaryUrl) && String.IsNullOrWhiteSpace(this.tsaSecondaryUrl))
{
throw new ArgumentNullException("TSA URL not provided.");
}
if (0 == this.outputFormat)
{
throw new ArgumentNullException("Timestamp output format not provided.");
}
if (null == this.timestampData)
{
throw new ArgumentNullException("Data for timestamping not provided.");
}
/* Get hashed data */
byte[] hashedData = this.timestampData.GetHashedData(this.hashAlgorithm);
/* Generate request */
TimeStampRequestGenerator requestGenerator = new TimeStampRequestGenerator();
requestGenerator.SetCertReq(true);
TimeStampRequest request = requestGenerator.Generate(new Oid(this.hashAlgorithm.ToString()).Value, hashedData);
/* Get response */
TimeStampResponse response = GetTimeStampResponse(request);
/* Validate response */
if (!(response.Status == 0 || response.Status == 1))
{
throw new TspValidationException(
string.Format("Invalid response, response status={0}, response status string={1}, response failure info={2}",
response.Status, response.GetStatusString(), response.GetFailInfo().IntValue));
}
/*
* Check this response against to see if it a well formed response for
* the passed in request. It validates message imprint digests and message imprint algorithms.
*
* @param request the request to be checked against
* @throws TspException if the request can not match this response.
*/
response.Validate(request);
TimeStampToken token = response.TimeStampToken;
X509Certificate2 certificate = null;
TimestampObject timestamp = new TimestampObject();
/* Validate certificate */
certificate = TimestampVerifier.ValidateCertificate(token, timestamp, minimumCertificateValidityPeriod);
timestamp.HashAlgorithm = this.hashAlgorithm;
timestamp.Timestamp = Utils.GetTimestampForOutput(response, this.outputFormat, this.timestampData);
return(timestamp);
}
public void TestAccuracyWithCertsAndOrdering()
{
TimeStampTokenGenerator tsTokenGen = new TimeStampTokenGenerator(
privateKey, cert, TspAlgorithms.MD5, "1.2.3");
tsTokenGen.SetCertificates(certs);
tsTokenGen.SetAccuracySeconds(3);
tsTokenGen.SetAccuracyMillis(1);
tsTokenGen.SetAccuracyMicros(2);
tsTokenGen.SetOrdering(true);
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
reqGen.SetCertReq(true);
TimeStampRequest request = reqGen.Generate(TspAlgorithms.Sha1, new byte[20], BigInteger.ValueOf(100));
Assert.IsTrue(request.CertReq);
TimeStampResponseGenerator tsRespGen = new TimeStampResponseGenerator(tsTokenGen, TspAlgorithms.Allowed);
TimeStampResponse tsResp = tsRespGen.Generate(request, BigInteger.ValueOf(23), DateTime.UtcNow);
tsResp = new TimeStampResponse(tsResp.GetEncoded());
TimeStampToken tsToken = tsResp.TimeStampToken;
tsToken.Validate(cert);
//
// check validation
//
tsResp.Validate(request);
//
// check tstInfo
//
TimeStampTokenInfo tstInfo = tsToken.TimeStampInfo;
//
// check accuracy
//
GenTimeAccuracy accuracy = tstInfo.GenTimeAccuracy;
Assert.AreEqual(3, accuracy.Seconds);
Assert.AreEqual(1, accuracy.Millis);
Assert.AreEqual(2, accuracy.Micros);
Assert.AreEqual(BigInteger.ValueOf(23), tstInfo.SerialNumber);
Assert.AreEqual("1.2.3", tstInfo.Policy);
Assert.AreEqual(true, tstInfo.IsOrdered);
Assert.AreEqual(tstInfo.Nonce, BigInteger.ValueOf(100));
//
// test certReq
//
IX509Store store = tsToken.GetCertificates("Collection");
ICollection certificates = store.GetMatches(null);
Assert.AreEqual(2, certificates.Count);
}
public void TestAccuracyWithCertsAndOrdering()
{
TimeStampTokenGenerator tsTokenGen = new TimeStampTokenGenerator(
privateKey, cert, TspAlgorithms.MD5, "1.2.3");
tsTokenGen.SetCertificates(certs);
tsTokenGen.SetAccuracySeconds(3);
tsTokenGen.SetAccuracyMillis(1);
tsTokenGen.SetAccuracyMicros(2);
tsTokenGen.SetOrdering(true);
TimeStampRequestGenerator reqGen = new TimeStampRequestGenerator();
reqGen.SetCertReq(true);
TimeStampRequest request = reqGen.Generate(TspAlgorithms.Sha1, new byte[20], BigInteger.ValueOf(100));
Assert.IsTrue(request.CertReq);
TimeStampResponseGenerator tsRespGen = new TimeStampResponseGenerator(tsTokenGen, TspAlgorithms.Allowed);
TimeStampResponse tsResp = tsRespGen.Generate(request, BigInteger.ValueOf(23), DateTime.UtcNow);
tsResp = new TimeStampResponse(tsResp.GetEncoded());
TimeStampToken tsToken = tsResp.TimeStampToken;
tsToken.Validate(cert);
//
// check validation
//
tsResp.Validate(request);
//
// check tstInfo
//
TimeStampTokenInfo tstInfo = tsToken.TimeStampInfo;
//
// check accuracy
//
GenTimeAccuracy accuracy = tstInfo.GenTimeAccuracy;
Assert.AreEqual(3, accuracy.Seconds);
Assert.AreEqual(1, accuracy.Millis);
Assert.AreEqual(2, accuracy.Micros);
Assert.AreEqual(BigInteger.ValueOf(23), tstInfo.SerialNumber);
Assert.AreEqual("1.2.3", tstInfo.Policy);
Assert.AreEqual(true, tstInfo.IsOrdered);
Assert.AreEqual(tstInfo.Nonce, BigInteger.ValueOf(100));
//
// test certReq
//
IX509Store store = tsToken.GetCertificates("Collection");
ICollection certificates = store.GetMatches(null);
Assert.AreEqual(2, certificates.Count);
}