It seems DL_GroupParameters_IntegerBased::BERDecode()
would fetch generator and order from PKCS-3 -encoded parameters
(according to ftp://ftp.rsasecurity.com/pub/pkcs/ascii/pkcs-3.asc)
in the reverse order.
Namely, pkcs-3 specify generator to follow modulus,
and order to be the last one in the sequence.
Is it a good idea to keep DL_GroupParameters_IntegerBased::BERDecode()
capable parsing pkcs-3 ?
I'd put it like
BERSequenceDecoder parameters(bt);
Integer p(parameters);
Integer g(parameters);
q = (p-1)/2;
if (!parameters.EndReached())
q.BERDecode(parameters);
parameters.MessageEnd();
Vadym Fedyukovych
http://vf.org.ua/
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