SegmentedEncodeOid() static private method

Encode the segments { tag, length, value } of an object identifier (Oid).
static private SegmentedEncodeOid ( Oid oid ) : byte[][]
oid Oid
return byte[][]
DerEncoder Class Documentation
Exemplo n.º 1
0
        internal static byte[] ToPrivateKeyBlob(this ECParameters parameters)
        {
            parameters.Validate();

            if (!parameters.Curve.IsNamed)
            {
                throw new PlatformNotSupportedException(SR.Cryptography_ECC_NamedCurvesOnly);
            }

            byte[] pointBlob = GetPointBlob(ref parameters);

            // ECPrivateKey{CURVES:IOSet} ::= SEQUENCE {
            //   version INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
            //   privateKey OCTET STRING,
            //   parameters [0] Parameters{{IOSet}} OPTIONAL,
            //   publicKey  [1] BIT STRING OPTIONAL
            // }
            return(DerEncoder.ConstructSequence(
                       s_encodedVersion1,
                       DerEncoder.SegmentedEncodeOctetString(parameters.D),
                       DerEncoder.ConstructSegmentedContextSpecificValue(
                           0,
                           DerEncoder.SegmentedEncodeOid(parameters.Curve.Oid)),
                       DerEncoder.ConstructSegmentedContextSpecificValue(
                           1,
                           DerEncoder.SegmentedEncodeBitString(pointBlob))));
        }
Exemplo n.º 2
0
        internal static byte[] ToSubjectPublicKeyInfo(this DSAParameters parameters)
        {
            // SubjectPublicKeyInfo::= SEQUENCE  {
            //    algorithm AlgorithmIdentifier,
            //    subjectPublicKey     BIT STRING  }

            // Dss-Parms ::= SEQUENCE {
            //   p INTEGER,
            //   q INTEGER,
            //   g INTEGER
            // }

            return(DerEncoder.ConstructSequence(
                       DerEncoder.ConstructSegmentedSequence(
                           DerEncoder.SegmentedEncodeOid(s_idDsa),
                           DerEncoder.ConstructSegmentedSequence(
                               DerEncoder.SegmentedEncodeUnsignedInteger(parameters.P),
                               DerEncoder.SegmentedEncodeUnsignedInteger(parameters.Q),
                               DerEncoder.SegmentedEncodeUnsignedInteger(parameters.G)
                               )
                           ),
                       DerEncoder.SegmentedEncodeBitString(
                           DerEncoder.SegmentedEncodeUnsignedInteger(parameters.Y))
                       ));
        }
Exemplo n.º 3
0
        internal static byte[] ToSubjectPublicKeyInfo(this ECParameters parameters)
        {
            parameters.Validate();

            if (!parameters.Curve.IsNamed)
            {
                throw new PlatformNotSupportedException(SR.Cryptography_ECC_NamedCurvesOnly);
            }

            byte[] pointBlob = GetPointBlob(ref parameters);

            return(DerEncoder.ConstructSequence(
                       DerEncoder.ConstructSegmentedSequence(
                           s_encodedIdEcPublicKey,
                           DerEncoder.SegmentedEncodeOid(parameters.Curve.Oid)),
                       DerEncoder.SegmentedEncodeBitString(pointBlob)));
        }