Hi all,

From the previous discussions here, it really feels like section 10
("Securing the Callback Channel") of this document is not nearly as polished as the rest of the document. That is, the current spec could not possibly result in a working system.

Furthermore, the section is really describing a generic RPC and keying system, with only a paragraph or two that are specific to rxgk operation. We have several statements that begin "in rxgk's case, [...]" which makes the section feel like a grafted-on afterthought.

rxgk's operation does not depend on SetCallBackKey, nor on extended callbacks in general; on the contrary, extended callbacks depend on the ability to set a callback key for a secure channel, and such a secure callback channel is probably easier to impelement once rxgk is in place than otherwise.


Does anyone feel strongly that SetCallBackKey should remain in this document? I can probably take responsibility for writing the separate document which would describe a SetCallBackKey RPC, if we do not just put that behavior in the XCB document itself.

Thanks,

Ben
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