Errore marcatura temporale TSA

8/20/2015 1:22:28 PM

mbarbagin

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Errore marcatura temporale TSA

Visual Studio 2005 - .NET 2.0
NCryptoki.dll versione 1.5.3.1
NDigitSign.dll versione 1.3.1.1
NCryptoMngd.dll versione 1.1.2.1
NSCAPI.dll versione 1.2.1.2
itextsharp.dll versione 5.0.5.0
BouncyCastle.Crypto.dll versione 1.7.4675.27319

La sola firma dei documenti funziona correttamente. Quando invece tento di firmare e marcare temporalmente ottengo il seguente errore:

malformed timestamp response: System.ArgumentException: Unknown object in 'TimeStampResp' factory: Org.BouncyCastle.Asn1.DerUnknownTag

in Org.BouncyCastle.Asn1.Tsp.TimeStampResp.GetInstance(Object o)
in Org.BouncyCastle.Tsp.TimeStampResponse.readTimeStampResp(Asn1InputStream input)

Questo è il codice di esempio che uso per firmare e marcare un documento:

Dim cfgInput as string = "prova.pdf"
Dim cfgOutput as string = "prova.pdf.p7m.m7m"
Dim cfgPKCS as string = "bit4ipki.dll"
Dim iSlotSel as integer = 0
Dim cfgPIN as string = "12345678"
' Test TS
Dim cfgTSUrl as string = "https://portal.actalis.it/tsa/FrontEnd"
Dim cfgTSuser as string = "xxxx"
Dim cfgTSpwd as string = "yyyy"
' Test TS con proxy
Dim cfgProxyHost as string = "proxy-server"
Dim cfgProxyPort as integer = 3128
Dim cfgProxyUser as string = "aaaa"
Dim cfgProxyPwd as string = "bbbb"

dsign = New DigitalSigner(cfgPKCS)
dsign.OpenSession(iSlotSel)
dsign.Login(cfgPIN)
Dim sel = New QualifiedCertificateSelector
Dim tsa As TSAClient = Nothing
If cfgTSurl <> "" Then
If cfgProxyHost <> "" And cfgProxyPort > 0 Then
Dim pr As New WebProxy(cfgProxyHost, cfgProxyPort)
If cfgProxyUser <> "" Then pr.Credentials = New NetworkCredential(cfgProxyUser, cfgProxyPwd)
TSAClient.Proxy = pr
End If
If cfgTSuser = "" Then
tsa = New TSAClient(cfgTSurl)
Else
tsa = New TSAClient(cfgTSurl, cfgTSuser, cfgTSpwd)
End If
End If
dsign.CAdES = True
dsign.Multisignature = false
dsign.AddCACertificate = True
dsign.Detached = False
dsign.TsaClient = tsa
Dim sd As SignedDocument = dsign.Sign(data, sel)
Dim signedData(sd.ToByteArray().Length) As Byte
signedData = sd.ToByteArray
dsign.Logout()
dsign.CloseSession()
dsign.Finalize()
File.Delete(cfgOutput)
Dim fso As New FileStream(cfgOutput, FileMode.CreateNew)
fso.Write(signedData, 0, CInt(signedData.Length))
fso.Close()

6/22/2016 12:32:16 PM

Ricard

Total Posts 5

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Re: Errore marcatura temporale TSA

Hi,

To me, works with this code :

var selector = new ByIdCertificateSelector(certificateId);
var pdfSigner = new PDFDigitalSigner(digitalSigner);

pdfSigner.AddCACertificate = true;

if (timestamp)
{

pdfSigner.TsaClient = new TSAClient(Configuration.TSAClientUrl,Configuration.TSAClientUserName,Configuration.TSAClientPassword);
}
try
{
pdfSigner.SignPDFFile(inFileName, selector, outFileName);
}
catch (DigitalSignatureException ex)
{
Logger.Log.Error(() => "error code -> " + ex.ErrorCode.ToString("x"));
Logger.Log.Error(() => "error string -> " + ex.ErrorString);

throw;
}

But timestamp is generated without ca subordinated and some tools show a error, like certificate is not associated to timestamp.

Regards

6/30/2016 10:54:18 AM

Admin

Total Posts 30

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Re: Errore marcatura temporale TSA

Considerando lo stacktrace che ci hai inviato sembrerebbe un problema dovuto al formato del response della timestamping authority di actalis.

Difatti fallisce il parsing del TSA response.

Sei sicuro che la TSA abbia risposto con un timestamp e non con un errore (es password errata o qualcos'altro)?