Exemple #1
0
        static Rfc3161TimeStampReq()
        {
            Rfc3161TimeStampReq decoded = default;
            AsnValueReader      reader;

            reader          = new AsnValueReader(DefaultCertReq, AsnEncodingRules.DER);
            decoded.CertReq = reader.ReadBoolean();
            reader.ThrowIfNotEmpty();
        }
        internal static void Decode(AsnReader reader, out Rfc3161TimeStampReq decoded)
        {
            if (reader == null)
            {
                throw new ArgumentNullException(nameof(reader));
            }

            Decode(reader, Asn1Tag.Sequence, out decoded);
        }
Exemple #3
0
        internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out Rfc3161TimeStampReq decoded)
        {
            decoded = default;
            AsnValueReader      sequenceReader = reader.ReadSequence(expectedTag);
            AsnValueReader      defaultReader;
            AsnValueReader      collectionReader;
            ReadOnlySpan <byte> rebindSpan = rebind.Span;
            int offset;
            ReadOnlySpan <byte> tmpSpan;


            if (!sequenceReader.TryReadInt32(out decoded.Version))
            {
                sequenceReader.ThrowIfNotEmpty();
            }

            System.Security.Cryptography.Pkcs.Asn1.MessageImprint.Decode(ref sequenceReader, rebind, out decoded.MessageImprint);

            if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.ObjectIdentifier))
            {
                decoded.ReqPolicy = sequenceReader.ReadObjectIdentifier();
            }


            if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Integer))
            {
                tmpSpan       = sequenceReader.ReadIntegerBytes();
                decoded.Nonce = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
            }


            if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Boolean))
            {
                decoded.CertReq = sequenceReader.ReadBoolean();
            }
            else
            {
                defaultReader   = new AsnValueReader(DefaultCertReq, AsnEncodingRules.DER);
                decoded.CertReq = defaultReader.ReadBoolean();
            }


            if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
            {
                // Decode SEQUENCE OF for Extensions
                {
                    collectionReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
                    var tmpList = new List <System.Security.Cryptography.Asn1.X509ExtensionAsn>();
                    System.Security.Cryptography.Asn1.X509ExtensionAsn tmpItem;

                    while (collectionReader.HasData)
                    {
                        System.Security.Cryptography.Asn1.X509ExtensionAsn.Decode(ref collectionReader, rebind, out tmpItem);
                        tmpList.Add(tmpItem);
                    }

                    decoded.Extensions = tmpList.ToArray();
                }
            }


            sequenceReader.ThrowIfNotEmpty();
        }
Exemple #4
0
 internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out Rfc3161TimeStampReq decoded)
 {
     Decode(ref reader, Asn1Tag.Sequence, rebind, out decoded);
 }
        internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out Rfc3161TimeStampReq decoded)
        {
            if (reader == null)
            {
                throw new ArgumentNullException(nameof(reader));
            }

            decoded = default;
            AsnReader sequenceReader = reader.ReadSequence(expectedTag);
            AsnReader defaultReader;
            AsnReader collectionReader;


            if (!sequenceReader.TryReadInt32(out decoded.Version))
            {
                sequenceReader.ThrowIfNotEmpty();
            }

            System.Security.Cryptography.Pkcs.Asn1.MessageImprint.Decode(sequenceReader, out decoded.MessageImprint);

            if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.ObjectIdentifier))
            {
                decoded.ReqPolicy = sequenceReader.ReadObjectIdentifier();
            }


            if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Integer))
            {
                decoded.Nonce = sequenceReader.GetIntegerBytes();
            }


            if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Boolean))
            {
                decoded.CertReq = sequenceReader.ReadBoolean();
            }
            else
            {
                defaultReader   = new AsnReader(s_defaultCertReq, AsnEncodingRules.DER);
                decoded.CertReq = defaultReader.ReadBoolean();
            }


            if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
            {
                // Decode SEQUENCE OF for Extensions
                {
                    collectionReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
                    var tmpList = new List <System.Security.Cryptography.Asn1.X509ExtensionAsn>();
                    System.Security.Cryptography.Asn1.X509ExtensionAsn tmpItem;

                    while (collectionReader.HasData)
                    {
                        System.Security.Cryptography.Asn1.X509ExtensionAsn.Decode(collectionReader, out tmpItem);
                        tmpList.Add(tmpItem);
                    }

                    decoded.Extensions = tmpList.ToArray();
                }
            }


            sequenceReader.ThrowIfNotEmpty();
        }
Exemple #6
0
 internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out Rfc3161TimeStampReq decoded)
 {
     try
     {
         DecodeCore(ref reader, expectedTag, rebind, out decoded);
     }
     catch (AsnContentException e)
     {
         throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding, e);
     }
 }