[metrics-bugs] #21378 [Metrics/CollecTor]: Archive bwauth bandwidth files

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#21378: Archive bwauth bandwidth files
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 Reporter:  tom                     |          Owner:  metrics-team
     Type:  enhancement             |         Status:  new
 Priority:  Medium                  |      Milestone:
Component:  Metrics/CollecTor       |        Version:
 Severity:  Normal                  |     Resolution:
 Keywords:  tor-bwauth tor-dirauth  |  Actual Points:
Parent ID:                          |         Points:
 Reviewer:                          |        Sponsor:
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Comment (by teor):

 Replying to [comment:21 irl]:
 > I've already started work on a prototype Python version of this
 CollecTor module. Can we use the same encoding for the digest that is used
 to reference vote, server descriptor or extra info descriptor digests?
 This will allow for better code reuse. We will convert things into
 whatever at the point they are read into CollecTor and convert them back
 when read out. Consistency within the spec is more important than
 consistency with code that I'm currently replacing.
 >
 > Humans using CollecTor will typically use either stem or metrics-lib to
 interact with it.

 I am a human who regularly uses CollecTor via the web interface (not stem
 or metrics-lib).

 But if someone wrote a nice easy program or web interface for me to get a
 bandwidth file from a vote, I would use that instead.

 Replying to [comment:22 juga]:
 > Following #26698, last changes are in
 ​https://github.com/torproject/tor/pull/492, which is putting a
 sha1-digest (hex-encoded)

 We do not use broken hash algorithms in new code.

 Replying to [comment:25 irl]:
 > I think that a base64-encoded SHA256 digest of the file would be the
 thing to have.

 Ok.

 If we need to discuss the hash any more, let's do it on the hash ticket
 #26698.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21378#comment:26>
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