[EMAIL PROTECTED]
Subject: Re: Object identifiers and ASN.1 syntax
Date: Tue, 03 Oct 2000 21:31:40 +0100
Message-ID: [EMAIL PROTECTED]
drh Richard Levitte - VMS Whacker wrote:
drh
drh
drh I'm trying to make a simple perl script that is capable of parsing
drh through an ASN.1 module
One can see definitions like this:
{ iso standard 8571 abstract-syntax (2) }
The names aren't flat. To find out the number for "standard", you
ask iso. To find out the number of abstract-syntax, you ask the entity
that maintains "8571" (you might have to ask "standard" who that is).
Richard Levitte - VMS Whacker wrote:
I'm trying to make a simple perl script that is capable of parsing
through an ASN.1 module embedded in any document an extracting the
OIDs from it. When I'm done with that, I'll extend it to be able to
parse LDAP schemas entries as in RFC2256. Then
Richard Levitte - VMS Whacker wrote:
From: Rich Salz [EMAIL PROTECTED]
Subject: Re: Object identifiers and ASN.1 syntax
Date: Tue, 03 Oct 2000 14:43:05 -0400
Message-ID: [EMAIL PROTECTED]
rsalz One can see definitions like this:
rsalz
rsalz { iso standard 8571 abstract
Ben Laurie wrote:
What I'm trying to figure out is how I will best get together all the
information from reading a number of ASN.1 modules. I'm wondering for
example how "standard" is defined. Is it something like this?
standard OBJECT IDENTIFIER ::= { iso 0 }
Or is it:
Rich Salz wrote:
One can see definitions like this:
{ iso standard 8571 abstract-syntax (2) }
The names aren't flat. To find out the number for "standard", you
ask iso. To find out the number of abstract-syntax, you ask the entity
that maintains "8571" (you might have to ask
From: Ben Laurie [EMAIL PROTECTED]
ben BTW, if I'm understanding correctly, what you write is:
ben
ben iso.standard OBJECT IDENTIFIER ::= { 0 }
ben
ben or something to that effect...
OK, that starts to make sense. Now to figure out the most efficient
way to parse a OID value...
--
From: Ben Laurie [EMAIL PROTECTED]
ben BTW, are the ways of asking "standard", "iso" and "8571" about
ben each other known? Or is that all part of the game?
If I understand correctly, it's "all part of the game"...
ben Can we write a daemon that does this (I have this vision of one
ben of its
From: Dr S N Henson [EMAIL PROTECTED]
Subject: Re: Object identifiers and ASN.1 syntax
Date: Tue, 03 Oct 2000 21:31:40 +0100
Message-ID: [EMAIL PROTECTED]
drh Richard Levitte - VMS Whacker wrote:
drh
drh
drh I'm trying to make a simple perl script that is capable of parsing
drh through
BTW, are the ways of asking "standard", "iso" and "8571" about each
other known? Or is that all part of the game?
you have to go to each registrar (arc owner) in turn.
the means of getting name/numbers can be very formal, or wildly
informal.
/r$
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