Re: [Handle-info] About CA and CT in OpFlag

[Robert Tupelo-Schneck <schneck@cnri.reston.va.us>]

The CA bit does not have any use in current implementations.  It should be considered reserved.

A request with the CT bit set asks the server (recursive or otherwise) to sign its response.  This is about producing (on the server side) and verifying (on the client side) the "Message Credential".

Robert

On Fri, Aug 20, 2021 at 12:37 AM 范志朋 <fzp375174288@163.com> wrote:

Hi，

1. What is the difference between the CA and CT flags in OpFlag in Message Header?

2. How does the handle recursive service need to deal with the CA bit and the CT bit?

3. Does the client need to verify the response that sets CA=1? How should it be verified?

Thank you ！

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