Re: [imi] SAML 2 profile questions

[John Bradley <jbradley@mac.com>]

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If someone is determined to not use asymmetric signatures,  they are  
not going to be widely interoperable anyway.

If someone in a closed community decided to use HMAC signatures with  
pre-shared  keys it would be on them to make sure there implementation  
supports it.

I think we are flexible enough on what people can do with signatures.

I don't want to remove them as mandatory for IMI.

John B.
On 2009-10-15, at 1:01 AM, Scott Cantor wrote:

> John Bradley wrote:
>> I agree with Scott.   If you want some sort of unsigned token it  
>> should be a different token type.
>
> Or at least a different profile that I can take my name off of.
>
>> I think different signature methods should be supported rather than  
>> limiting it to RSA sigs, but I believe that is allowed now.
>
> The specification is silent about it except where it discusses  
> things like HoK, which is separate from this.
>
>> Scott,  If as a issuer I wanted to use pre shared symmetric keys  
>> would that be supported by this profile?
>
> Anything supported by SAML is supported by the profile, and SAML  
> supports anything defined for XML Signature, which includes HMAC  
> signatures. Of course, those aren't mandatory to implement at the  
> moment, and lots of implementations wouldn't handle them.
>
> -- Scott


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