On Tue, May 03, 2005, Andrea Cogliati wrote:

> 
> On May 3, 2005, at 1:12 PM, Dr. Stephen Henson wrote:
> 
> >>If I use Windows Certificate viewer, the certificate generated with
> >>OpenSSL has Key Encipherment (e0) as a Key Usage, while a certificate
> >>generated through MS Certificate Server has Key Encipherment (a0).
> >
> >What do you get in the keyUsage extension when you do:
> >
> >openssl x509 -in cert.pem -noout -text
> >
> openssl shows "Key Encipherment" for both certifcates. Is the e0/a0 
> issue a MS undocumented "feature"?
> 
> The first one is the openssl certificate, the second one is the MS 
> Certificate Server one:
> 
>        X509v3 Key Usage:
>                 Digital Signature, Non Repudiation, Key Encipherment
>             X509v3 Key Usage:
>                 Digital Signature, Key Encipherment
> 

The a0/e0 is a hex representation of the bits above. If you remove the non
repidiation usage from openssl.cnf the two should then be identical.

Steve.
--
Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage
OpenSSL project core developer and freelance consultant.
Funding needed! Details on homepage.
Homepage: http://www.drh-consultancy.demon.co.uk
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