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Re: [tor-bugs] #12871 [RPM packaging]: RPM repo data is not signed and documentation misses repo_gpgcheck

#12871: RPM repo data is not signed and documentation misses repo_gpgcheck
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     Reporter:  cypherpunks    |      Owner:  hiviah
         Type:  defect         |     Status:  assigned
     Priority:  normal         |  Milestone:
    Component:  RPM packaging  |    Version:
   Resolution:                 |   Keywords:
Actual Points:                 |  Parent ID:
       Points:                 |
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Comment (by hiviah):

 Citing from https://lists.torproject.org/pipermail/tor-
 dev/2014-October/007661.html :

 > It is my opinion that even in the case of HTTPS GPG signatures provide a
 > security improvement since (I hope) the private GPG key used to sign the
 > repo is less exposed than the wildcard certificate for *.tpo.

 The RPM packages are already GPG-signed, the signatures repomd.xml.asc are
 already there and can be used. On top of it the repomd.xml* files are
 transmitted over TLS. If an attacker just wanted DOS by denying update,
 all he has to do is TCP RST (why bother with forging TLS?).

 > Could you elaborate on your issue regarding repo_gpgcheck not showing
 > fingerprints? (It does show the gpg key fingerprint on a fc20 system
 > after adding repo_gpgcheck=1 and running 'yum update' [3]).

 This is the case for EL6 at least - once you add repo_gpgcheck=1, it will
 only ask if you want to trust key given in gpgkey parameter without
 showing fingerprint (with gpgcheck parameter yum does ask if fingerprint
 matches, though). I don't feel comfortable telling users to accept an
 arbitrary key. It would be easier if I knew which version of yum fixed
 this so it could be added into documentation.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12871#comment:9>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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