public CmsEnvelopedDataParser(
			Stream envelopedData)
			: base(envelopedData)
		{
			this._attrNotRead = true;
			this.envelopedData = new EnvelopedDataParser(
				(Asn1SequenceParser)this.contentInfo.GetContent(Asn1Tags.Sequence));

			// TODO Validate version?
			//DerInteger version = this.envelopedData.Version;

			//
			// read the recipients
			//
			Asn1Set recipientInfos = Asn1Set.GetInstance(this.envelopedData.GetRecipientInfos().ToAsn1Object());

			//
			// read the encrypted content info
			//
			EncryptedContentInfoParser encInfo = this.envelopedData.GetEncryptedContentInfo();
			this._encAlg = encInfo.ContentEncryptionAlgorithm;
			ICmsReadable readable = new CmsProcessableInputStream(
				((Asn1OctetStringParser)encInfo.GetEncryptedContent(Asn1Tags.OctetString)).GetOctetStream());
			CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsEnvelopedSecureReadable(
				this._encAlg, readable);

			//
			// build the RecipientInformationStore
			//
			this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
				recipientInfos, secureReadable);
		}
        public CmsAuthenticatedDataParser(
            Stream envelopedData)
            : base(envelopedData)
        {
            this.authAttrNotRead = true;
            this.authData        = new AuthenticatedDataParser(
                (Asn1SequenceParser)contentInfo.GetContent(Asn1Tags.Sequence));

            // TODO Validate version?
            //DerInteger version = this.authData.getVersion();

            //
            // read the recipients
            //
            Asn1Set recipientInfos = Asn1Set.GetInstance(authData.GetRecipientInfos().ToAsn1Object());

            this.macAlg = authData.GetMacAlgorithm();

            //
            // read the authenticated content info
            //
            ContentInfoParser data     = authData.GetEnapsulatedContentInfo();
            ICmsReadable      readable = new CmsProcessableInputStream(
                ((Asn1OctetStringParser)data.GetContent(Asn1Tags.OctetString)).GetOctetStream());
            CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable(
                this.macAlg, readable);

            //
            // build the RecipientInformationStore
            //
            this._recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
                recipientInfos, secureReadable);
        }
Beispiel #3
0
        public CmsEnvelopedDataParser(
            Stream envelopedData)
            : base(envelopedData)
        {
            this._attrNotRead  = true;
            this.envelopedData = new EnvelopedDataParser(
                (Asn1SequenceParser)this.contentInfo.GetContent(Asn1Tags.Sequence));

            // TODO Validate version?
            //DerInteger version = this.envelopedData.Version;

            //
            // read the recipients
            //
            Asn1Set recipientInfos = Asn1Set.GetInstance(this.envelopedData.GetRecipientInfos().ToAsn1Object());

            //
            // read the encrypted content info
            //
            EncryptedContentInfoParser encInfo = this.envelopedData.GetEncryptedContentInfo();

            this._encAlg = encInfo.ContentEncryptionAlgorithm;
            ICmsReadable readable = new CmsProcessableInputStream(
                ((Asn1OctetStringParser)encInfo.GetEncryptedContent(Asn1Tags.OctetString)).GetOctetStream());
            CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsEnvelopedSecureReadable(
                this._encAlg, readable);

            //
            // build the RecipientInformationStore
            //
            this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
                recipientInfos, secureReadable);
        }
		public CmsAuthenticatedDataParser(
			Stream envelopedData)
			: base(envelopedData)
		{
			this.authAttrNotRead = true;
			this.authData = new AuthenticatedDataParser(
				(Asn1SequenceParser)contentInfo.GetContent(Asn1Tags.Sequence));

			// TODO Validate version?
			//DerInteger version = this.authData.getVersion();

			//
			// read the recipients
			//
			Asn1Set recipientInfos = Asn1Set.GetInstance(authData.GetRecipientInfos().ToAsn1Object());

			this.macAlg = authData.GetMacAlgorithm();

			//
			// read the authenticated content info
			//
			ContentInfoParser data = authData.GetEnapsulatedContentInfo();
			ICmsReadable readable = new CmsProcessableInputStream(
				((Asn1OctetStringParser)data.GetContent(Asn1Tags.OctetString)).GetOctetStream());
			CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable(
				this.macAlg, readable);

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