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Re: Signature format and smart cards



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>>>>> "Brian" == Brian Swander <briansw@microsoft.com> writes:
    Brian> It is unlikely that all the vendors will ship using our format,
    Brian> and at the same time, IKE needs to be able to use certs from smart
    Brian> cards.

    Brian> I propose:

    Brian> Set the reserved field of the sig_payload header to 1 to signal
    Brian> standard pkcs1 with the OID, 0 otherwise.

  That is a silly thing to do.
  It doesn't nothing to help interopability, nor signals to people who
haven't implemented this "hack" why the signatures fail.

  Instead, you need to define a new signature format, as if it were
a totally different format. From isakmp-oakley-08:

   - Authentication Method
      pre-shared key                      1
      DSS signatures                      2
      RSA signatures                      3
      Encryption with RSA                 4
      Revised encryption with RSA         5
      RSA signatures with OID             6             <--add

     values 6-65000 are reserved to IANA. Values 65001-65535 are for
     private use among mutually consenting parties.

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