public override void Decode
(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
int llen = (explicitTagging) ?
MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
Init();
// decode SEQUENCE
Asn1BerDecodeContext context =
new Asn1BerDecodeContext(buffer, llen);
IntHolder elemLen = new IntHolder();
// decode encryptionParamSet
if (context.MatchElemTag(Asn1Tag.Universal, Asn1Tag.PRIM, 6, elemLen, false))
{
encryptionParamSet = new Gost28147_89_ParamSet();
encryptionParamSet.Decode(buffer, true, elemLen.Value);
}
else
{
throw new Exception("Asn1MissingRequiredException");
}
// decode extElem1
if (!context.Expired())
{
Asn1Tag _tag = buffer.PeekTag();
if (_tag.Equals(Asn1Tag.Universal, Asn1Tag.PRIM, 6))
{
throw new Exception("Asn1SeqOrderException");
}
else
{
extElem1 = new Asn1OpenExt();
while (!context.Expired())
{
extElem1.DecodeComponent(buffer);
}
}
}
else
{
extElem1 = null;
}
}
public override void Decode(Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
{
var elemLength = explicitTagging ? MatchTag(buffer, Asn1Tag.Sequence) : implicitLength;
EncryptionParamSet = null;
ExtElement = 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.Expired())
{
if (buffer.PeekTag().Equals(0, 0, ObjectIdentifierTypeCode))
{
throw ExceptionUtility.CryptographicException(Resources.Asn1SeqOrderException);
}
ExtElement = new Asn1OpenExt();
while (!context.Expired())
{
ExtElement.DecodeComponent(buffer);
}
}
else
{
ExtElement = null;
}
}
private void Init()
{
EncryptionParamSet = null;
_extElem1 = null;
}
public void Init()
{
encryptionParamSet = null;
extElem1 = null;
}
