[tor-bugs] #30549 [Applications/Tor Browser]: Add script to remove expired sub-keys from a keyring file

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#30549: Add script to remove expired sub-keys from a keyring file
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 Reporter:  boklm                           |          Owner:  tbb-team
     Type:  task                            |         Status:  reopened
 Priority:  Medium                          |      Milestone:
Component:  Applications/Tor Browser        |        Version:
 Severity:  Normal                          |     Resolution:
 Keywords:  TorBrowserTeam201907R, tbb-rbm  |  Actual Points:
Parent ID:  #30548                          |         Points:
 Reviewer:                                  |        Sponsor:
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Changes (by boklm):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 When used with gpg >= 2.1, the `tools/keyring/drop-expired-sub-keys`
 script will convert the keyring format to the keybox format, which is only
 compatible with gpg >= 2.1.

 I think we should update the script to keep the keyring in the old format,
 to keep compatibility with older versions of gpg.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30549#comment:13>
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