[cabfpub] RFC5280

Rob Stradling rob.stradling at comodo.com
Wed Feb 24 21:08:32 UTC 2016

On 24/02/16 19:59, Stephen Davidson wrote:
> Long names:
> https://crt.sh/?cablint=230


I wonder how many of those >64-character organizationNames could easily 
be shrunk to <=64 characters?

O=ENSASE (École Nationale Supérieure d'Architecture de Saint-Étienne)

Removing "ENSASE (" and ")" would shrink that one to 58 characters.

> -----Original Message-----
> From: public-bounces at cabforum.org [mailto:public-bounces at cabforum.org] On
> Behalf Of Rob Stradling
> Sent: Wednesday, February 24, 2016 3:57 PM
> To: Jeremy Rowley <jeremy.rowley at digicert.com>; public at cabforum.org
> Subject: Re: [cabfpub] RFC5280
> On 24/02/16 18:56, Jeremy Rowley wrote:
> <snip>
>> 1)Org names, common names,  and address fields are limited to 64
>> characters. Very few international companies can comply with this
>> restriction.
> Hi Jeremy.  I'm puzzled as to why "international" would have anything to do
> with this.  Can you cite some examples of such international companies?
> You do realize that the limit is in characters, not bytes, right?
>> It's even worse if you are converting an IDN to a printable string.
> If an IDN doesn't fit in a Subject.commonName, then you can omit the
> Subject.commonName field from the cert.
> Use SAN.dNSName.
> --
> Rob Stradling
> Senior Research & Development Scientist
> COMODO - Creating Trust Online
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Rob Stradling
Senior Research & Development Scientist
COMODO - Creating Trust Online
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