[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3593: Add direct tests for FileHandle.get_encryption_key

[Tahoe-LAFS]

#3593: Add direct tests for FileHandle.get_encryption_key
---------------------+---------------------------
 Reporter:  exarkun  |          Owner:
     Type:  defect   |         Status:  new
 Priority:  normal   |      Milestone:  undecided
Component:  unknown  |        Version:  n/a
 Keywords:           |  Launchpad Bug:
---------------------+---------------------------
 FileHandle.get_encryption_key is responsible for deterministically and
 stably deriving an encryption key.

 For the same inputs, it needs to derive the same key or convergent
 encryption becomes impossible.

 At a test with well-known values in it to ensure a stable result.

--
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3593>
Tahoe-LAFS <https://Tahoe-LAFS.org>
secure decentralized storage