public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
DigestParamSet = null;
PublicKeyParamSet = null;
EncryptionParamSet = null;
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
PublicKeyParamSet = new Asn1ObjectIdentifier();
PublicKeyParamSet.Decode(buffer, true, parsedLen.Value);
if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
DigestParamSet = new Asn1ObjectIdentifier();
DigestParamSet.Decode(buffer, true, parsedLen.Value);
if (context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
{
EncryptionParamSet = new Gost_28147_89_ParamSet();
EncryptionParamSet.Decode(buffer, true, parsedLen.Value);
}
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
EncryptionParamSet = null;
EphemeralPublicKey = null;
Ukm = null;
var context = new Asn1BerDecodeContext(buffer, elemLength);
var parsedLen = new IntHolder();
if (!context.MatchElemTag(0, 0, ObjectIdentifierTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
EncryptionParamSet = new Gost_28147_89_ParamSet();
EncryptionParamSet.Decode(buffer, true, parsedLen.Value);
if (context.MatchElemTag(0x80, 0x20, EocTypeCode, parsedLen, true))
{
EphemeralPublicKey = new SubjectPublicKeyInfo();
EphemeralPublicKey.Decode(buffer, false, parsedLen.Value);
}
if (!context.MatchElemTag(0, 0, OctetStringTypeCode, parsedLen, false))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1MissingRequiredException, buffer.ByteCount);
}
Ukm = new Asn1OctetString();
Ukm.Decode(buffer, true, parsedLen.Value);
if (Ukm.Length != 8)
{
throw ExceptionUtility.CryptographicException(Resources.Asn1ConsVioException, nameof(Ukm.Length), Ukm.Length);
}
}
