Re: Proper way to represent a NULL (no entries) CRL?

John,

I understand what you mean.

>       A SEQUENCE containing empty OPTIONAL elements is encoded as a SEQUENCE 
> of zero
> length.

Yes, no doubt.

>       An empty SEQUENCE which is an OPTIONAL element is absent in the 
> encoding.

I would be happy with the interpretation that an empty SEQUENCE which is 
OPTIONAL 
as a whole MUST be absent in the encoding. But ISO 8825 clause 15 about the 
encoding
of <SEQUENCE OF> values gives me evidence that encoding this as a SEQUENCE of 
zero
length would be in line with 8825, too. Can you provide me the conclusion why
it MUST be absent?

> John

Wolfgang