示例#1
0
        internal override void Encode(
            DerOutputStream derOut)
        {
            if (derOut is Asn1OutputStream || derOut is BerOutputStream)
            {
                derOut.WriteTag((byte)(Asn1Tags.Constructed | Asn1Tags.Tagged), tagNo);
                derOut.WriteByte(0x80);

                if (!IsEmpty())
                {
                    if (!explicitly)
                    {
                        IEnumerable eObj;
                        if (obj is Asn1OctetString)
                        {
                            if (obj is BerOctetString)
                            {
                                eObj = (BerOctetString)obj;
                            }
                            else
                            {
                                Asn1OctetString octs = (Asn1OctetString)obj;
                                eObj = new BerOctetString(octs.GetOctets());
                            }
                        }
                        else if (obj is Asn1Sequence)
                        {
                            eObj = (Asn1Sequence)obj;
                        }
                        else if (obj is Asn1Set)
                        {
                            eObj = (Asn1Set)obj;
                        }
                        else
                        {
                            throw Platform.CreateNotImplementedException(Platform.GetTypeName(obj));
                        }

                        foreach (Asn1Encodable o in eObj)
                        {
                            derOut.WriteObject(o);
                        }
                    }
                    else
                    {
                        derOut.WriteObject(obj);
                    }
                }

                derOut.WriteByte(0x00);
                derOut.WriteByte(0x00);
            }
            else
            {
                base.Encode(derOut);
            }
        }
示例#2
0
        /**
         * return an Octet string from a tagged object.
         *
         * @param obj the tagged object holding the object we want.
         * @param explicitly true if the object is meant to be explicitly
         *              tagged false otherwise.
         * @exception ArgumentException if the tagged object cannot
         *              be converted.
         */
        public static Asn1OctetString GetInstance(
            Asn1TaggedObject obj,
            bool isExplicit)
        {
            Asn1Object o = obj.GetObject();

            if (isExplicit || o is Asn1OctetString)
            {
                return(GetInstance(o));
            }

            return(BerOctetString.FromSequence(Asn1Sequence.GetInstance(o)));
        }