[tor-bugs] #9478 [Tor]: Operational crypto enhancements

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#9478: Operational crypto enhancements
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 Reporter:  grarpamp     |          Owner:                    
     Type:  enhancement  |         Status:  new               
 Priority:  normal       |      Milestone:  Tor: 0.2.5.x-final
Component:  Tor          |        Version:  Tor: 0.2.4.16-rc  
 Keywords:               |         Parent:                    
   Points:               |   Actualpoints:                    
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 Subject of managing key material has come up a few times on the lists.

 Facility for user can add/drop/mod the controller access token and Tor
 keys directly to a Tor in boot standby or running mode via controller
 without requiring disk for them.
 Some modes of node deployment/use are disposable so in that case config
 option to autogenerate keys and not write them out to disk, but show them
 in controller/debug.
 Allow use of passphrased keys on startup like apache console or via
 passphrase put in via controller.
 Disk storage of other bits of .tor may be sensitive enough to keep in core
 as well.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9478>
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