Skip to main content
8 events
when toggle format what by license comment
Feb 2, 2023 at 18:14 comment added fgrieu Update: and that reference too, in it's note 1.
Nov 5, 2021 at 0:48 history became hot network question
Nov 4, 2021 at 20:27 comment added fgrieu Yes, I now see it's in Matthieu Rivain, Securing RSA against Fault Analysis by Double Addition Chain Exponentiation (updated version), originally in proceedings of CT-RSA 2009. Still, this reference makes Shamir's Trick synonymous of Simultaneous Exponentiation.
Nov 4, 2021 at 19:36 comment added Johny Dow @fgrieu It is named Shamir's trick in Topics in Cryptology – CT-RSA 2009 and that's where I got the name from.
Nov 4, 2021 at 19:33 vote accept Johny Dow
Nov 4, 2021 at 17:26 comment added fgrieu That's not Shamir's trick as I know it, which computes $x^a\,y^b\bmod n$ at roughly 60% the cost of computing it as $(x^a\bmod n)\,y^b\bmod n$. OTOH Shamir surely has many tricks. Also, while the equation stated holds, that's not the standard countermeasure against fault attacks, which is to check $s^e\bmod n=m$.
Nov 4, 2021 at 16:56 answer added Daniel S timeline score: 2
Nov 4, 2021 at 16:47 history asked Johny Dow CC BY-SA 4.0