attribute value length limit

[Fco. Javier Melero]

Hi you all,

I've got an  LDAP attribute mapped into user-password RADIUS attribute. 
This attribute is RSA-ciphered so RADIUS have to deciphered it when it 
arrives in order to use it for authentication. The problem arise when I 
try to use an RSA key pretty much longer than 1400 bytes, because the 
resulting value exceed the 253 bytes RADIUS specification length limit. 
My questions are:

Is this size limit mandatory even when this RADIUS attribute is never 
put on the wire?

If so, could anybody point a way which allow me to use longer RSA keys?

Thanks in advance. Greetings

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Fco. Javier Melero de la Torre

Universidad Carlos III de Madrid
Servicio de Informática y Comunicaciones
Area de Seguridad y Comunicaciones
(https://asyc.uc3m.es)

e-mail: javier at di.uc3m.es
phone: (+34) 916.249.980, (+34) 918.561.341
fax:   (+34) 916.249.430
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