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Re: S/MIME v3.2 IDs key size text




>Steve:

>>A separate issue is whether such a signature is verified before or 
>>after the certificate itself is verified and whether one can 
>>persuade a CA to issue a certificate containing such a key.

>Indeed, this is the best solution.  Perhaps we should drop the max 
>size limit and discuss this point in the security considerations.

I was amazed by the following proposal :
"A receiving agent SHOULD be able to verify signatures with keys up to 16384 bits".

If we drop it, then there is no guidance anymore.

Reasonably, for any implementation, today:
"A receiving agent SHOULD be able to verify signatures with keys up to 2048 bits".

This does not prevent any implementation to support larger key sizes.

Denis

>Russ