On 3 Nov 2011, at 15:09, Alejandro Perez Mendez wrote:

> 
>> On 11/3/11 10:51 AM, "Alejandro Perez Mendez"<[email protected]>  wrote:
>>> What if the user has some attribute which is>  4K? For example a photo
>>> (for biometric comparation).
>>> I think that this situation should not be ignored, even when I can agree
>>> it will not be the most usual.
>> Sorry, I wasn't saying the assertion wouldn't be>  4K, I was saying the
>> signature alone isn't that much bigger than a mediumish attribute unless
>> you add the cert.
>> 
>> I thought the>  4K thing was addressed by chunking it up. If not, you have
>> a problem.
> 
> That exactly the problem. Even splitting into 253-byte chucks, a RADIUS 
> message cannot have more than 4K in total, including all the attributes. So, 
> I think it would be required to find a solution for this, as it could happen, 
> even without certificates and signatures.

Could send a SAML artifact and then get the real, large, SAML assertion by 
resolving the artifact over http on the issuing IdP?

R.
--
Dr Rhys Smith: Identity, Access, and Middleware Specialist
Cardiff University & JANET(UK)

email: [email protected] / [email protected]
GPG: 0xDE2F024C


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