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Re: Thoughts on the draft

At 03:35 PM 9/3/96 EDT, Angelos D. Keromytis wrote:
>>Your approach is interesting.  Can you send more, to help me understand it?
>The idea is that you initiate the parser over the certificate, and
>build some state. Then the application can check whether all fields
>are there (spki_require()), and if some are missing return an
>indication; ask for the value of a particular tag (spki_value()); get
>all the values of a particular tag (spki_dump()) or the number of
>values (spki_count()). 


The way I parse this, you put the certificate into a tag-addressable memory,
check that a particular set of tags is present and then go to work looking
at tag contents.  Does that capture it?

>There is special handling of signature tags.

To answer a question below, this is why we separate the signature tag from
the certificate body.

>I don't see why the placement of SIGNATURE makes any difference;
>signatures should compute over all fields in a certificate except
>other signature fields.

I put the signature outside so that everything within the BEGIN/END block
gets signed.

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