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From: "vt at altlinux dot org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug debuginfod/27758] security idea: DEBUGINFOD_VERIFY mode
Date: Wed, 21 Apr 2021 00:15:31 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D27758

Vitaly Chikunov <vt at altlinux dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vt at altlinux dot org

--- Comment #3 from Vitaly Chikunov <vt at altlinux dot org> ---
Instead of `X-Debuginfod-Hash` you can use `ETag` where you can put anything
including sha256 (can be prescribed in webapi description), then GET request
with `If-None-Match` + tag value (which is a hash) will return just 304 if =
the
hash is not changed. So HEAD request is not needed too.

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ETag
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If-None-Match

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