[x500standard] SV: Re: SV: [T17Q11] LDAP schema in X.500

  • From: "Erik Andersen" <era@xxxxxxx>
  • To: <x500standard@xxxxxxxxxxxxx>
  • Date: Tue, 13 Dec 2011 13:48:03 +0100

Hi David,

Thanks for your comments. We will take them into account.

Actually, I got the idea when studying RFC 4523 (LDAP X.509 Schema), also
written by Kurt.

Regards,

Erik Andersen
Andersen's L-Service
Elsevej 48,
DK-3500 Vaerloese
Denmark
Mobile: +45 2097 1490
e-amail: era@xxxxxxx
Skype: andersen-erik
http://www.x500.eu/
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-----Oprindelig meddelelse-----
Fra: x500standard-bounce@xxxxxxxxxxxxx
[mailto:x500standard-bounce@xxxxxxxxxxxxx] På vegne af David Wilson
Sendt: 13. december 2011 12:07
Til: x500standard@xxxxxxxxxxxxx
Cc: 'SG17-Q11'
Emne: [x500standard] Re: SV: [T17Q11] LDAP schema in X.500

On Mon, 2011-12-12 at 17:50 +0100, Erik Andersen wrote:
> Hi Jean-Paul, Thanks a lot for your offer to participate.
> 
>  
> 
> To others, I have received a response from Steve Kill, who likes the 
> concept. I would appreciate comments from others.

I guess that Isode generally, and not just Steve Kille, is interested in
this. (Particularly, perhaps, Kurt Zeilenga who is the author of RFC 4512,
which defines the LDAP Schema objects).

I have a few initial comments:

- LDAP attributes have a syntax which is an OID identifying the data type
and an optional 'length'. The latter has the somewhat loose semantics of
being a minimum upper bound which a server should support, although a server
can support longer values. So it is somewhat different from a size
constraint on an ASN.1 type.

- LDAP matching rules also have an LDAP syntax, but without the length.

- LDAP schema objects can have multiple names (e.g. 'cn' and 'commonName'). 

- LDAP schema object can have a description, which is UTF-8.

There are also extensions.

best regards

David

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  • » [x500standard] SV: Re: SV: [T17Q11] LDAP schema in X.500 - Erik Andersen