International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Samuel Jaques

Publications

Year
Venue
Title
2019
CRYPTO
Quantum Cryptanalysis in the RAM Model: Claw-Finding Attacks on SIKE
Samuel Jaques John M. Schanck
We introduce models of computation that enable direct comparisons between classical and quantum algorithms. Incorporating previous work on quantum computation and error correction, we justify the use of the gate-count and depth-times-width cost metrics for quantum circuits. We demonstrate the relevance of these models to cryptanalysis by revisiting, and increasing, the security estimates for the Supersingular Isogeny Diffie–Hellman (SIDH) and Supersingular Isogeny Key Encapsulation (SIKE) schemes. Our models, analyses, and physical justifications have applications to a number of memory intensive quantum algorithms.

Coauthors

John M. Schanck (1)