Org.BouncyCastle.Asn1.Cms.ContentInfo.ToAsn1Object C# (CSharp) Méthode

        public override Asn1Object ToAsn1Object()
        {
            Asn1EncodableVector v = new Asn1EncodableVector(contentType);

            if (content != null)
            {
                v.Add(new BerTaggedObject(0, content));
            }

            return new BerSequence(v);
        }
    }

        private Asn1Object CreateDERForRecipient(byte[] inp, X509Certificate cert)
        {
            String s = "1.2.840.113549.3.2";

            byte[] outp = new byte[100];
            DerObjectIdentifier derob = new DerObjectIdentifier(s);

            byte[]          keyp = IVGenerator.GetIV(16);
            IBufferedCipher cf   = CipherUtilities.GetCipher(derob);
            KeyParameter    kp   = new KeyParameter(keyp);

            byte[]           iv  = IVGenerator.GetIV(cf.GetBlockSize());
            ParametersWithIV piv = new ParametersWithIV(kp, iv);

            cf.Init(true, piv);
            int len = cf.DoFinal(inp, outp, 0);

            byte[] abyte1 = new byte[len];
            System.Array.Copy(outp, 0, abyte1, 0, len);
            DerOctetString        deroctetstring        = new DerOctetString(abyte1);
            KeyTransRecipientInfo keytransrecipientinfo = ComputeRecipientInfo(cert, keyp);
            DerSet derset          = new DerSet(new RecipientInfo(keytransrecipientinfo));
            Asn1EncodableVector ev = new Asn1EncodableVector();

            ev.Add(new DerInteger(58));
            ev.Add(new DerOctetString(iv));
            DerSequence          seq = new DerSequence(ev);
            AlgorithmIdentifier  algorithmidentifier  = new AlgorithmIdentifier(derob, seq);
            EncryptedContentInfo encryptedcontentinfo =
                new EncryptedContentInfo(PkcsObjectIdentifiers.Data, algorithmidentifier, deroctetstring);
            Asn1Set       set = null;
            EnvelopedData env = new EnvelopedData(null, derset, encryptedcontentinfo, set);

            Org.BouncyCastle.Asn1.Cms.ContentInfo contentinfo =
                new Org.BouncyCastle.Asn1.Cms.ContentInfo(PkcsObjectIdentifiers.EnvelopedData, env);
            return(contentinfo.ToAsn1Object());
        }