[tor-bugs] #20992 [Core Tor/Tor]: hs: Add more unit tests for failure cases of parsing and validation for ESTABLISH_INTRO v3 cells

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#20992: hs: Add more unit tests for failure cases of parsing and validation for
ESTABLISH_INTRO v3 cells
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     Reporter:  dgoulet        |      Owner:
         Type:  enhancement    |     Status:  new
     Priority:  Medium         |  Milestone:  Tor: 0.3.0.x-final
    Component:  Core Tor/Tor   |    Version:
     Severity:  Normal         |   Keywords:  tor-hs, prop224, test
Actual Points:                 |  Parent ID:
       Points:  0.4            |   Reviewer:  #17241
      Sponsor:  SponsorR-must  |
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 For instance: bad sig_len, bad auth_key_len, bad MAC, and bad signature.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20992>
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