Inheritance: Asn1Object, IEnumerable
        public CmsEnvelopedData(
            ContentInfo contentInfo)
        {
            this.contentInfo = contentInfo;

			EnvelopedData envData = EnvelopedData.GetInstance(contentInfo.Content);

			//
			// read the recipients
			//
			Asn1Set recipientInfos = envData.RecipientInfos;

			//
			// read the encrypted content info
			//
			EncryptedContentInfo encInfo = envData.EncryptedContentInfo;
			this.encAlg = encInfo.ContentEncryptionAlgorithm;
			CmsReadable readable = new CmsProcessableByteArray(encInfo.EncryptedContent.GetOctets());
			CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsEnvelopedSecureReadable(
				this.encAlg, readable);

			//
			// build the RecipientInformationStore
			//
			this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);

			this.unprotectedAttributes = envData.UnprotectedAttrs;
        }
		public CmsAuthEnvelopedData(
			ContentInfo contentInfo)
		{
			this.contentInfo = contentInfo;

			AuthEnvelopedData authEnvData = AuthEnvelopedData.GetInstance(contentInfo.Content);

			this.originator = authEnvData.OriginatorInfo;

			//
	        // read the recipients
	        //
	        Asn1Set recipientInfos = authEnvData.RecipientInfos;

			//
			// read the auth-encrypted content info
			//
			EncryptedContentInfo authEncInfo = authEnvData.AuthEncryptedContentInfo;
			this.authEncAlg = authEncInfo.ContentEncryptionAlgorithm;
			CmsSecureReadable secureReadable = new AuthEnvelopedSecureReadable(this);

			//
			// build the RecipientInformationStore
			//
			this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);

			// FIXME These need to be passed to the AEAD cipher as AAD (Additional Authenticated Data)
			this.authAttrs = authEnvData.AuthAttrs;
			this.mac = authEnvData.Mac.GetOctets();
			this.unauthAttrs = authEnvData.UnauthAttrs;
		}
 public OriginatorInfo(
     Asn1Set certs,
     Asn1Set crls)
 {
     this.certs = certs;
     this.crls = crls;
 }
		public OriginatorInfo(
            Asn1Sequence seq)
        {
            switch (seq.Count)
            {
            case 0:     // empty
                break;
            case 1:
                Asn1TaggedObject o = (Asn1TaggedObject) seq[0];
                switch (o.TagNo)
                {
                case 0 :
                    certs = Asn1Set.GetInstance(o, false);
                    break;
                case 1 :
                    crls = Asn1Set.GetInstance(o, false);
                    break;
                default:
                    throw new ArgumentException("Bad tag in OriginatorInfo: " + o.TagNo);
                }
                break;
            case 2:
                certs = Asn1Set.GetInstance((Asn1TaggedObject) seq[0], false);
                crls  = Asn1Set.GetInstance((Asn1TaggedObject) seq[1], false);
                break;
            default:
                throw new ArgumentException("OriginatorInfo too big");
            }
        }
		public CmsAuthenticatedData(
			ContentInfo contentInfo)
		{
			this.contentInfo = contentInfo;

			AuthenticatedData authData = AuthenticatedData.GetInstance(contentInfo.Content);

			//
			// read the recipients
			//
			Asn1Set recipientInfos = authData.RecipientInfos;

			this.macAlg = authData.MacAlgorithm;

			//
			// read the authenticated content info
			//
			ContentInfo encInfo = authData.EncapsulatedContentInfo;
			CmsReadable readable = new CmsProcessableByteArray(
				Asn1OctetString.GetInstance(encInfo.Content).GetOctets());
			CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable(
				this.macAlg, readable);

			//
			// build the RecipientInformationStore
			//
			this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);

			this.authAttrs = authData.AuthAttrs;
			this.mac = authData.Mac.GetOctets();
			this.unauthAttrs = authData.UnauthAttrs;
		}
		public EnvelopedData(
            OriginatorInfo			originatorInfo,
            Asn1Set					recipientInfos,
            EncryptedContentInfo	encryptedContentInfo,
            Asn1Set					unprotectedAttrs)
        {
            if (originatorInfo != null || unprotectedAttrs != null)
            {
                version = new DerInteger(2);
            }
            else
            {
                version = new DerInteger(0);

				foreach (object o in recipientInfos)
				{
                    RecipientInfo ri = RecipientInfo.GetInstance(o);

					if (!ri.Version.Equals(version))
                    {
                        version = new DerInteger(2);
                        break;
                    }
                }
            }

			this.originatorInfo = originatorInfo;
            this.recipientInfos = recipientInfos;
            this.encryptedContentInfo = encryptedContentInfo;
            this.unprotectedAttrs = unprotectedAttrs;
        }
		public AttributeX509(
            DerObjectIdentifier	attrType,
            Asn1Set				attrValues)
        {
            this.attrType = attrType;
            this.attrValues = attrValues;
        }
Example #8
0
		public SafeBag(
            DerObjectIdentifier	oid,
            Asn1Object			obj)
        {
            this.bagID = oid;
            this.bagValue = obj;
            this.bagAttributes = null;
        }
		private AttributeX509(
            Asn1Sequence seq)
        {
			if (seq.Count != 2)
				throw new ArgumentException("Bad sequence size: " + seq.Count);

			attrType = DerObjectIdentifier.GetInstance(seq[0]);
			attrValues = Asn1Set.GetInstance(seq[1]);
        }
Example #10
0
        private AttributePkcs(
            Asn1Sequence seq)
        {
            if (seq.Count != 2)
                throw new ArgumentException("Wrong number of elements in sequence", "seq");

            attrType = DerObjectIdentifier.GetInstance(seq[0]);
            attrValues = Asn1Set.GetInstance(seq[1]);
        }
		public Pkcs10CertificationRequestDelaySigned(
			string					signatureAlgorithm,
			X509Name				subject,
			AsymmetricKeyParameter	publicKey,
			Asn1Set					attributes,
			AsymmetricKeyParameter	signingKey)
			: base(signatureAlgorithm, subject, publicKey, attributes, signingKey)
		{
		}
Example #12
0
		public SafeBag(
            DerObjectIdentifier	oid,
            Asn1Object			obj,
            Asn1Set				bagAttributes)
        {
            this.bagID = oid;
            this.bagValue = obj;
            this.bagAttributes = bagAttributes;
        }
Example #13
0
		public SafeBag(
            Asn1Sequence seq)
        {
            this.bagID = (DerObjectIdentifier) seq[0];
            this.bagValue = ((DerTaggedObject) seq[1]).GetObject();
            if (seq.Count == 3)
            {
                this.bagAttributes = (Asn1Set) seq[2];
            }
        }
        /**
         * Generates a certificate object and initializes it with the data
         * read from the input stream inStream.
         */
        public X509Certificate ReadCertificate(
            Stream inStream)
        {
            if (inStream == null)
                throw new ArgumentNullException("inStream");
            if (!inStream.CanRead)
                throw new ArgumentException("inStream must be read-able", "inStream");

            if (currentStream == null)
            {
                currentStream = inStream;
                sData = null;
                sDataObjectCount = 0;
            }
            else if (currentStream != inStream) // reset if input stream has changed
            {
                currentStream = inStream;
                sData = null;
                sDataObjectCount = 0;
            }

            try
            {
                if (sData != null)
                {
                    if (sDataObjectCount != sData.Count)
                    {
                        return GetCertificate();
                    }

                    sData = null;
                    sDataObjectCount = 0;
                    return null;
                }

                PushbackStream pis = new PushbackStream(inStream);
                int tag = pis.ReadByte();

                if (tag < 0)
                    return null;

                pis.Unread(tag);

                if (tag != 0x30)  // assume ascii PEM encoded.
                {
                    return ReadPemCertificate(pis);
                }

                return ReadDerCertificate(new Asn1InputStream(pis));
            }
            catch (Exception e)
            {
                throw new CertificateException("Failed to read certificate", e);
            }
        }
Example #15
0
		public AttributeTable(
            Asn1Set s)
        {
            this.attributes = Platform.CreateHashtable(s.Count);

			for (int i = 0; i != s.Count; i++)
            {
                AttributeX509 a = AttributeX509.GetInstance(s[i]);

				attributes.Add(a.AttrType, a);
            }
        }
        internal static RecipientInformationStore BuildRecipientInformationStore(
            Asn1Set recipientInfos, CmsSecureReadable secureReadable)
        {
            IList infos = Platform.CreateArrayList();
            for (int i = 0; i != recipientInfos.Count; i++)
            {
                RecipientInfo info = RecipientInfo.GetInstance(recipientInfos[i]);

                ReadRecipientInfo(infos, info, secureReadable);
            }
            return new RecipientInformationStore(infos);
        }
        public AttributeTable(
            Asn1Set s)
        {
            this.attributes = Platform.CreateHashtable(s.Count);

			for (int i = 0; i != s.Count; i++)
            {
                Attribute a = Attribute.GetInstance(s[i]);

                AddAttribute(a);
            }
        }
 public EnvelopedData(
     OriginatorInfo originatorInfo,
     Asn1Set recipientInfos,
     EncryptedContentInfo encryptedContentInfo,
     Attributes unprotectedAttrs)
 {
     this.version = new DerInteger(CalculateVersion(originatorInfo, recipientInfos, Asn1Set.GetInstance(unprotectedAttrs)));
     this.originatorInfo = originatorInfo;
     this.recipientInfos = recipientInfos;
     this.encryptedContentInfo = encryptedContentInfo;
     this.unprotectedAttrs = Asn1Set.GetInstance(unprotectedAttrs);
 }
        static string BuildPartitionedCrlDistributionPoint(string partitionedCrlDistributionPoint, Asn1Set dset)
        {
            foreach (DerSequence relativeDn in dset)
            {
                var relativeDnOid = ((DerObjectIdentifier)relativeDn[0]).Id;
                var relativeDnName = (string)X509Name.RFC2253Symbols[new DerObjectIdentifier(relativeDnOid)];
                var relativeDnValue = ((DerStringBase)relativeDn[1]).GetString();

                var comma = partitionedCrlDistributionPoint.Length > 0 ? "," : "";
                partitionedCrlDistributionPoint = relativeDnName + "=" + relativeDnValue + comma + partitionedCrlDistributionPoint;
            }
            return partitionedCrlDistributionPoint;
        }
Example #20
0
        public SignedData(
			Asn1Set     digestAlgorithms,
			ContentInfo contentInfo,
			Asn1Set     certificates,
			Asn1Set     crls,
			Asn1Set     signerInfos)
        {
            this.version = CalculateVersion(contentInfo.ContentType, certificates, crls, signerInfos);
            this.digestAlgorithms = digestAlgorithms;
            this.contentInfo = contentInfo;
            this.certificates = certificates;
            this.crls = crls;
            this.signerInfos = signerInfos;
        }
Example #21
0
 public SignedData(
     DerInteger        _version,
     Asn1Set           _digestAlgorithms,
     ContentInfo       _contentInfo,
     Asn1Set           _certificates,
     Asn1Set           _crls,
     Asn1Set           _signerInfos)
 {
     version          = _version;
     digestAlgorithms = _digestAlgorithms;
     contentInfo      = _contentInfo;
     certificates     = _certificates;
     crls             = _crls;
     signerInfos      = _signerInfos;
 }
Example #22
0
 public SignerInfo(
     SignerIdentifier        sid,
     AlgorithmIdentifier     digAlgorithm,
     Attributes              authenticatedAttributes,
     AlgorithmIdentifier     digEncryptionAlgorithm,
     Asn1OctetString         encryptedDigest,
     Attributes              unauthenticatedAttributes)
 {
     this.version = new DerInteger(sid.IsTagged ? 3 : 1);
     this.sid = sid;
     this.digAlgorithm = digAlgorithm;
     this.authenticatedAttributes = Asn1Set.GetInstance(authenticatedAttributes);
     this.digEncryptionAlgorithm = digEncryptionAlgorithm;
     this.encryptedDigest = encryptedDigest;
     this.unauthenticatedAttributes = Asn1Set.GetInstance(unauthenticatedAttributes);
 }
Example #23
0
        private SignedData(
            Asn1Sequence seq)
        {
            IEnumerator e = seq.GetEnumerator();

            e.MoveNext();
            version = (DerInteger)e.Current;

            e.MoveNext();
            digestAlgorithms = ((Asn1Set)e.Current);

            e.MoveNext();
            contentInfo = ContentInfo.GetInstance(e.Current);

            while (e.MoveNext())
            {
                Asn1Object o = (Asn1Object)e.Current;

                //
                // an interesting feature of SignedData is that there appear
                // to be varying implementations...
                // for the moment we ignore anything which doesn't fit.
                //
                if (o is Asn1TaggedObject)
                {
                    Asn1TaggedObject tagged = (Asn1TaggedObject)o;

                    switch (tagged.TagNo)
                    {
                        case 0:
                            certBer = tagged is BerTaggedObject;
                            certificates = Asn1Set.GetInstance(tagged, false);
                            break;
                        case 1:
                            crlsBer = tagged is BerTaggedObject;
                            crls = Asn1Set.GetInstance(tagged, false);
                            break;
                        default:
                            throw new ArgumentException("unknown tag value " + tagged.TagNo);
                    }
                }
                else
                {
                    signerInfos = (Asn1Set) o;
                }
            }
        }
Example #24
0
		public SignerInfo(
            DerInteger              version,
            IssuerAndSerialNumber   issuerAndSerialNumber,
            AlgorithmIdentifier     digAlgorithm,
            Asn1Set                 authenticatedAttributes,
            AlgorithmIdentifier     digEncryptionAlgorithm,
            Asn1OctetString         encryptedDigest,
            Asn1Set                 unauthenticatedAttributes)
        {
            this.version = version;
            this.issuerAndSerialNumber = issuerAndSerialNumber;
            this.digAlgorithm = digAlgorithm;
            this.authenticatedAttributes = authenticatedAttributes;
            this.digEncryptionAlgorithm = digEncryptionAlgorithm;
            this.encryptedDigest = encryptedDigest;
            this.unauthenticatedAttributes = unauthenticatedAttributes;
        }
		private X509Crl ReadDerCrl(
			Asn1InputStream dIn)
		{
			Asn1Sequence seq = (Asn1Sequence)dIn.ReadObject();

			if (seq.Count > 1 && seq[0] is DerObjectIdentifier)
			{
				if (seq[0].Equals(PkcsObjectIdentifiers.SignedData))
				{
					sCrlData = SignedData.GetInstance(
						Asn1Sequence.GetInstance((Asn1TaggedObject) seq[1], true)).Crls;

					return GetCrl();
				}
			}

			return CreateX509Crl(CertificateList.GetInstance(seq));
		}
		internal SignerInformation(
			SignerInfo			info,
			DerObjectIdentifier	contentType,
			CmsProcessable		content,
			IDigestCalculator	digestCalculator)
		{
			this.info = info;
			this.sid = new SignerID();
			this.contentType = contentType;
			this.isCounterSignature = contentType == null;

			try
			{
				SignerIdentifier s = info.SignerID;

				if (s.IsTagged)
				{
					Asn1OctetString octs = Asn1OctetString.GetInstance(s.ID);

					sid.SubjectKeyIdentifier = octs.GetEncoded();
				}
				else
				{
					Asn1.Cms.IssuerAndSerialNumber iAnds =
						Asn1.Cms.IssuerAndSerialNumber.GetInstance(s.ID);

					sid.Issuer = iAnds.Name;
					sid.SerialNumber = iAnds.SerialNumber.Value;
				}
			}
			catch (IOException)
			{
				throw new ArgumentException("invalid sid in SignerInfo");
			}

			this.digestAlgorithm = info.DigestAlgorithm;
			this.signedAttributeSet = info.AuthenticatedAttributes;
			this.unsignedAttributeSet = info.UnauthenticatedAttributes;
			this.encryptionAlgorithm = info.DigestEncryptionAlgorithm;
			this.signature = info.EncryptedDigest.GetOctets();

			this.content = content;
			this.digestCalculator = digestCalculator;
		}
Example #27
0
        internal IX509Store CreateAttributeStore(
			string	type,
			Asn1Set	certSet)
        {
            IList certs = new ArrayList();

            if (certSet != null)
            {
                foreach (Asn1Encodable ae in certSet)
                {
                    try
                    {
                        Asn1Object obj = ae.ToAsn1Object();

                        if (obj is Asn1TaggedObject)
                        {
                            Asn1TaggedObject tagged = (Asn1TaggedObject)obj;

                            if (tagged.TagNo == 2)
                            {
                                certs.Add(
                                    new X509V2AttributeCertificate(
                                        Asn1Sequence.GetInstance(tagged, false).GetEncoded()));
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        throw new CmsException("can't re-encode attribute certificate!", ex);
                    }
                }
            }

            try
            {
                return X509StoreFactory.Create(
                    "AttributeCertificate/" + type,
                    new X509CollectionStoreParameters(certs));
            }
            catch (ArgumentException e)
            {
                throw new CmsException("can't setup the X509Store", e);
            }
        }
		private IX509AttributeCertificate ReadDerCertificate(
			Asn1InputStream dIn)
		{
			Asn1Sequence seq = (Asn1Sequence)dIn.ReadObject();

			if (seq.Count > 1 && seq[0] is DerObjectIdentifier)
			{
				if (seq[0].Equals(PkcsObjectIdentifiers.SignedData))
				{
					sData = SignedData.GetInstance(
						Asn1Sequence.GetInstance((Asn1TaggedObject) seq[1], true)).Certificates;

					return GetCertificate();
				}
			}

//			return new X509V2AttributeCertificate(seq.getEncoded());
			return new X509V2AttributeCertificate(AttributeCertificate.GetInstance(seq));
		}
Example #29
0
        public SignerInfo(
            Asn1Sequence seq)
        {
            IEnumerator e = seq.GetEnumerator();

            e.MoveNext();
            version = (DerInteger) e.Current;

            e.MoveNext();
            sid = SignerIdentifier.GetInstance(e.Current);

            e.MoveNext();
            digAlgorithm = AlgorithmIdentifier.GetInstance(e.Current);

            e.MoveNext();
            object obj = e.Current;

            if (obj is Asn1TaggedObject)
            {
                authenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject) obj, false);

                e.MoveNext();
                digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(e.Current);
            }
            else
            {
                authenticatedAttributes = null;
                digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(obj);
            }

            e.MoveNext();
            encryptedDigest = DerOctetString.GetInstance(e.Current);

            if (e.MoveNext())
            {
                unauthenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject) e.Current, false);
            }
            else
            {
                unauthenticatedAttributes = null;
            }
        }
        public EnvelopedData(
            Asn1Sequence seq)
        {
            int index = 0;

            version = (DerInteger) seq[index++];

            object tmp = seq[index++];

            if (tmp is Asn1TaggedObject)
            {
                originatorInfo = OriginatorInfo.GetInstance((Asn1TaggedObject) tmp, false);
                tmp = seq[index++];
            }

            recipientInfos = Asn1Set.GetInstance(tmp);
            encryptedContentInfo = EncryptedContentInfo.GetInstance(seq[index++]);

            if (seq.Count > index)
            {
                unprotectedAttrs = Asn1Set.GetInstance((Asn1TaggedObject) seq[index], false);
            }
        }
Example #31
0
 public Asn1SetParserImpl(
     Asn1Set outer)
 {
     this.outer = outer;
     this.max   = outer.Count;
 }
Example #32
0
        /// <summary>
        /// Questo metodo verifica se l'associazione fra marca e file è valida, verifica inoltre la
        /// validità del certificato firmatario della marca e la data di scadenza della marca; infine
        /// restituisce (se le verifiche vanno a buon fine) tutti i dati contenuti nella marca.
        /// </summary>
        /// <param name="tsRes"></param>
        /// <param name="tsReq"></param>
        /// <returns></returns>
        protected OutputResponseMarca checkMarca(TimeStampResponse tsRes, TimeStampRequest tsReq)
        {
            OutputResponseMarca outTSR = new OutputResponseMarca();

            try
            {
                tsRes.Validate(tsReq);
                outTSR.esito             = "OK";
                outTSR.descrizioneErrore = string.Empty;
            }
            catch (TspException e)
            {
                outTSR.esito             = "KO";
                outTSR.descrizioneErrore = "verifica della marca fallita: " + e.Message;
                logger.Debug("verifica della marca fallita: " + e.Message);
                //return outTSR;
            }

            TimeStampToken tsToken = tsRes.TimeStampToken;

            //Verifica data scadenza marca secondo l'ora locale
            Org.BouncyCastle.X509.Store.IX509Store store = tsToken.GetCertificates("Collection");
            Org.BouncyCastle.X509.X509Certificate  cert  = (Org.BouncyCastle.X509.X509Certificate) new ArrayList(store.GetMatches(tsToken.SignerID))[0];
            //se la data attuale è maggiore di quella di scadenza del certificato che ha firmato la marca
            //allora la marca è scaduta!!!
            if (DateTime.Now.CompareTo(cert.NotAfter.ToLocalTime()) > 0)
            {
                //outTSR.esito = "KO";
                outTSR.descrizioneErrore = "marca temporale scaduta";
                logger.Debug("marca temporale scaduta");
                //return outTSR;
            }

            try
            {
                //estrazione delle informazioni dalla marca
                outTSR.dsm            = cert.NotAfter.ToLocalTime().ToString();
                outTSR.sernum         = tsToken.TimeStampInfo.SerialNumber.ToString();
                outTSR.fhash          = byteArrayToHexa(tsToken.TimeStampInfo.TstInfo.MessageImprint.GetHashedMessage());
                outTSR.docm           = tsToken.TimeStampInfo.TstInfo.GenTime.TimeString;
                outTSR.docm_date      = tsToken.TimeStampInfo.GenTime.ToLocalTime().ToString();
                outTSR.marca          = Convert.ToBase64String(tsRes.GetEncoded());
                outTSR.algCertificato = cert.SigAlgName;
                outTSR.fromDate       = cert.NotBefore.ToLocalTime().ToString();
                outTSR.snCertificato  = cert.SerialNumber.ToString();
                //Algoritmo hash utilizzato per l'impronta
                string algHashOid = tsToken.TimeStampInfo.MessageImprintAlgOid;
                if (!string.IsNullOrEmpty(algHashOid))
                {
                    System.Security.Cryptography.Oid oidHash = new System.Security.Cryptography.Oid(algHashOid);
                    outTSR.algHash = oidHash.FriendlyName;
                }

                outTSR.TSA = new TSARFC2253();

                //Con le TSA di test potrebbe non essere valorizzato l'oggetto TSA
                logger.Debug("Controllo TSA : " + tsToken.TimeStampInfo.Tsa);
                try
                {
                    if (tsToken.TimeStampInfo.Tsa != null)
                    {
                        string oid      = string.Empty;
                        string oidValue = string.Empty;
                        logger.Debug("TagNo: " + tsToken.TimeStampInfo.Tsa.TagNo);
                        for (int n = 0; n < tsToken.TimeStampInfo.Tsa.TagNo; n++)
                        {
                            logger.Debug("Tag: " + n);
                            Org.BouncyCastle.Asn1.Asn1Sequence seq = (Org.BouncyCastle.Asn1.Asn1Sequence)tsToken.TimeStampInfo.Tsa.Name.ToAsn1Object();

                            //Obsoleto
                            //Org.BouncyCastle.Asn1.Asn1Object obj = (Org.BouncyCastle.Asn1.Asn1Object)seq.GetObjectAt(n);
                            Org.BouncyCastle.Asn1.Asn1Object obj = (Org.BouncyCastle.Asn1.Asn1Object)seq[n];

                            Org.BouncyCastle.Asn1.Asn1Set set1 = (Org.BouncyCastle.Asn1.Asn1Set)obj.ToAsn1Object();

                            //Obsoleto
                            //seq = (Org.BouncyCastle.Asn1.Asn1Sequence)set1.GetObjectAt(0);
                            //obj = (Org.BouncyCastle.Asn1.Asn1Object)seq.GetObjectAt(0);
                            seq = (Org.BouncyCastle.Asn1.Asn1Sequence)set1[0];
                            obj = (Org.BouncyCastle.Asn1.Asn1Object)seq[0];


                            oid = obj.ToString();

                            //Obsoleto
                            //obj = (Org.BouncyCastle.Asn1.Asn1Object)seq.GetObjectAt(1);
                            obj = (Org.BouncyCastle.Asn1.Asn1Object)seq[1];

                            oidValue = obj.ToString();
                            System.Security.Cryptography.Oid oid_obj = new System.Security.Cryptography.Oid(oid);
                            string friendly = oid_obj.FriendlyName;
                            logger.Debug("oid: " + oid + " friendly: " + friendly);
                            switch (friendly)
                            {
                            case "CN":
                                outTSR.TSA.CN = oidValue;
                                break;

                            case "OU":
                                outTSR.TSA.OU = oidValue;
                                break;

                            case "O":
                                outTSR.TSA.O = oidValue;
                                break;

                            case "C":
                                outTSR.TSA.C = oidValue;
                                break;
                            }
                        }
                        outTSR.TSA.TSARFC2253Name = "CN=" + outTSR.TSA.CN + ",OU=" + outTSR.TSA.OU + ",O=" + outTSR.TSA.O + ",C=" + outTSR.TSA.C;
                    }
                }
                catch (Exception e)
                {
                    logger.Debug("Eccezione controllo TSA : " + e.Message);
                }
                logger.Debug("Fine Controllo TSA");
            }
            catch (Exception eTsp)
            {
                outTSR.esito             = "KO";
                outTSR.descrizioneErrore = "estrazione delle informazioni dalla marca fallita: " + eTsp.Message;
                logger.Debug("estrazione delle informazioni dalla marca fallita: " + eTsp.Message);
                //return outTSR;
            }

            //verifico l'esistenza del documento al quale è associata la marca temporale
            //Commentata perchè l'impronta del documento è ancora calcolata con SHA1 invece che SHA256
            //DocsPaDB.Query_DocsPAWS.Documenti documento = new DocsPaDB.Query_DocsPAWS.Documenti();
            //outTSR.timestampedDoc = documento.GetDocNumberByImpronta(outTSR.fhash);
            //if (string.IsNullOrEmpty(outTSR.timestampedDoc))
            //{
            //    outTSR.timestampedDoc = "Non esiste alcun documento associato alla marca temporale.";
            //}

            //costruisco l'oggetto rappresentante il contenuto in chiaro della marca
            outTSR.DecryptedTSR             = new Marca();
            outTSR.DecryptedTSR.content     = contentMarca(outTSR);
            outTSR.DecryptedTSR.contentType = "text/html"; //"application/x-html";
            outTSR.DecryptedTSR.length      = outTSR.DecryptedTSR.content.Length;

            return(outTSR);
        }