pyquorum: Timing side‑channel in mul_mod

Impact The mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of secret‑sharing operations e.g., via a remote service could progressively recover the valu...

PT-2026-38310

Name of the Vulnerable Software and Affected Versions PyQuorum versions prior to 0.2.1 Description The mul mod function implements multiplication using a binary expansion loop. The execution time of this process depends on the Hamming weight the number of symbols that are different from zero of t...