[tbb-bugs] #28326 [Applications/Tor Browser]: Tor Browser for PPC64LE
Tor Bug Tracker & Wiki
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Tue Nov 6 17:19:38 UTC 2018
#28326: Tor Browser for PPC64LE
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Reporter: power9 | Owner: tbb-team
Type: enhancement | Status: new
Priority: Medium | Milestone:
Component: Applications/Tor Browser | Version:
Severity: Normal | Resolution:
Keywords: tbb-rbm | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Comment (by tpearson-raptor):
Replying to [comment:6 gk]:
> https://bearssl.org/ctmul.html has some more information.
The listed CPUs are very old. POWER9 (and likely POWER8) has constant
time multiplication via the mulhd/mulhdu and mulld commands (min latency
5, max latency 5).
See the processor user guide [1], Appendix A for details.
[1]
https://wiki.raptorcs.com/w/images/8/89/POWER9_um_OpenPOWER_v20GA_09APR2018_pub.pdf
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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28326#comment:8>
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