[tor-bugs] #13912 [Tor]: Key Security: Zeroing Buffers Is Insufficient (AES-NI leaves keys in SSE registers)

Tor Bug Tracker & Wiki blackhole at torproject.org
Tue Dec 9 05:53:19 UTC 2014


#13912: Key Security: Zeroing Buffers Is Insufficient (AES-NI leaves keys in SSE
registers)
------------------------+--------------------------------
     Reporter:  teor    |      Owner:
         Type:  defect  |     Status:  new
     Priority:  normal  |  Milestone:  Tor: 0.2.???
    Component:  Tor     |    Version:  Tor: 0.2.6.1-alpha
   Resolution:          |   Keywords:  security
Actual Points:          |  Parent ID:
       Points:          |
------------------------+--------------------------------

Comment (by teor):

 Are there compiler flags which keep the number of virtual registers
 allocated within physical limits?
 Can we decorate only certain functions or files with these?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13912#comment:3>
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