On 04.01.2018 19:23, Klaus P. Ohrhallinger wrote: > All PoC code I have seen today relies on those instructions. > Is there any other way to measure the memory/cache access times ? It is possible to emulate a high resolution counter with a thread that continuously increments a variable [1]. This is the reason why browser vendors are currently disabling the SharedArrayBuffer feature [2]. [1]: https://gist.github.com/ErikAugust/724d4a969fb2c6ae1bbd7b2a9e3d4bb6#gistcomment-2311156 [2]: https://blog.mozilla.org/security/2018/01/03/mitigations-landing-new-class-timing-attack/Received on Thu Jan 04 2018 - 17:51:16 UTC
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:41:14 UTC