[tor-bugs] #8587 [Tor]: Test for curve25519-donna-c64 usability is borken.

[Tor Bug Tracker & Wiki]

#8587: Test for curve25519-donna-c64 usability is borken.
------------------------------+---------------------------------------------
 Reporter:  nickm             |          Owner:                    
     Type:  defect            |         Status:  needs_review      
 Priority:  normal            |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor               |        Version:                    
 Keywords:  tor-client build  |         Parent:                    
   Points:                    |   Actualpoints:                    
------------------------------+---------------------------------------------

Comment(by rransom):

 Replying to [comment:6 nickm]:
 > I added an even more assertive fix to that branch as 3c621a2723e2e.  Now
 it will refuse to use donna-c64 if your sizeof(void *) indicates that you
 aren't a 64-bit platform.
 >
 > (Yes I know that one might have 64-bit math with a 64x64->128 multiply
 without having sizeof(void*)==8. Are there platforms like that which I
 should care about?)

 Google Native Client for AMD64 uses ILP32, and their paper on the AMD64
 and ARM versions of Native Client proposes that an ILP32 compilation mode
 should be made available for use in all programs on AMD64.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8587#comment:7>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online