[tor-bugs] #20422 [- Select a component]: Tor Browser builds are broken due to failing pycrypto signature check

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#20422: Tor Browser builds are broken due to failing pycrypto signature check
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     Reporter:  gk                    |      Owner:
         Type:  defect                |     Status:  new
     Priority:  Medium                |  Milestone:
    Component:  - Select a component  |    Version:
     Severity:  Normal                |   Keywords:  tbb-gitian
Actual Points:                        |  Parent ID:
       Points:                        |   Reviewer:
      Sponsor:                        |
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 When downloading `pycrypto` and checking its signature we get
 {{{
 gpg: Signature made Tue 15 Oct 2013 12:39:39 AM CEST using DSA key ID
 2C77FFB0
 gpg: Good signature from "Dwayne Litzenberger <dlitz at dlitz.net>"
 gpg:                 aka "Dwayne C. Litzenberger <dlitz at dlitz.net>"
 gpg: WARNING: Using untrusted key!
 [GNUPG:] KEYEXPIRED 1476988881
 [GNUPG:] SIGEXPIRED deprecated-use-keyexpired-instead
 [GNUPG:] KEYEXPIRED 1476988881
 [GNUPG:] SIGEXPIRED deprecated-use-keyexpired-instead
 [GNUPG:] SIG_ID WkH8dtL73r6jNEtq6iuYq1lo2yQ 2013-10-14 1381790379
 [GNUPG:] KEYEXPIRED 1476988881
 [GNUPG:] SIGEXPIRED deprecated-use-keyexpired-instead
 [GNUPG:] EXPKEYSIG 9B8AA8CA2C77FFB0 Dwayne Litzenberger <dlitz at dlitz.net>
 [GNUPG:] KEYEXPIRED 1476988881
 [GNUPG:] SIGEXPIRED deprecated-use-keyexpired-instead
 [GNUPG:] VALIDSIG E110D9A8C590EE8C2049B21C9B8AA8CA2C77FFB0 2013-10-14
 1381790379 0 4 0 17 10 00 19E11FE8B3CFF273ED174A24928CEC1339C25CF7
 PYCRYPTO: GPG signature is broken for
 https://pypi.python.org/packages/source/p/pycrypto/pycrypto-2.6.1.tar.gz
 }}}
 But we do in `fetch-inputs.sh`
 {{{
   if grep -q '^\[GNUPG:\] GOODSIG ' "$tmpfile"; then
     return 0
   else
     return 1
 }}}
 Thus, we fail hard.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20422>
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