On 07/26/2011 08:02 PM, Jeff Kell wrote:

Hello Jeff,

> Has anyone been able to get a "valid, acceptable to Windows out-of-the-box" 
> certificate
> for Radiator that allows seamless connections by Windows computers?
> 
> I've found bits and pieces, and references to voodoo with the openssl request 
> and/or
> openssl patches to support the "extra" bits that Windows expects, but still 
> haven't run
> across a nice clear answer.

See http://support.microsoft.com/kb/814394 and "Server certificate
requirements" chapter.

The extra bits in openssl configuration look like this:

[ req ]
...
req_extensions          = req_extensions

[req_extensions]
...
extendedKeyUsage       = serverAuth

This extension should satisfy the Windows builtin client. The OID is
1.3.6.1.5.5.7.3.1 and even if RFCs call this OID id-kp-serverAuth, some
tools may call it e.g. "TLS Web Server Authentication".

I have also noticed that the certificates from vendors such as Thawte
have this extension enabled by default.

> Has anyone done this successfully to connect without a supplicant / 
> Xpressconnect / su1x
> / other client preparation?

-- 
Heikki Vatiainen <[email protected]>

Radiator: the most portable, flexible and configurable RADIUS server
anywhere. SQL, proxy, DBM, files, LDAP, NIS+, password, NT, Emerald,
Platypus, Freeside, TACACS+, PAM, external, Active Directory, EAP, TLS,
TTLS, PEAP, TNC, WiMAX, RSA, Vasco, Yubikey, MOTP, HOTP, TOTP,
DIAMETER etc. Full source on Unix, Windows, MacOSX, Solaris, VMS,
NetWare etc.
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