activity
20052018
most citedFast algorithms for computing isogenies between elliptic curves

89 citations · 134 across the 7 of their papers we have counts for

collaborators

9 papers

math.NT2018

Deterministic factoring with oracles

Fran{\c c}ois Morain, Gu{é}na{ë}l Renault, Benjamin Smith

We revisit the problem of integer factorization with number-theoretic oracles, including a well-known problem: can we factor an integer unconditionally, in deterministic polyno…

math.NT2016★ 1 cited

Computing cardinalities of Q-curve reductions over finite fields

François Morain, Charlotte Scribot, Benjamin Smith

We present a specialized point-counting algorithm for a class of elliptic curves over F\_{p^2} that includes reductions of quadratic Q-curves modulo inert primes and, more generall…

cs.CR2016

Solving discrete logarithms on a 170-bit MNT curve by pairing reduction

Aurore Guillevic, François Morain, Emmanuel Thomé

Pairing based cryptography is in a dangerous position following the breakthroughs on discrete logarithms computations in finite fields of small characteristic. Remaining instances…

quant-ph2015★ 11 cited

Factoring Safe Semiprimes with a Single Quantum Query

Frédéric Grosshans, Thomas Lawson, François Morain +1

Shor's factoring algorithm (SFA), by its ability to efficiently factor large numbers, has the potential to undermine contemporary encryption. At its heart is a process called order…

math.NT2014★ 7 cited

Improvements to the number field sieve for non-prime finite fields

Razvan Barbulescu, Pierrick Gaudry, Aurore Guillevic +1

We propose various strategies for improving the computation of discrete logarithms in non-prime fields of medium to large characteristic using the Number Field Sieve. This includes…

math.NT2012★ 3 cited

Discrete logarithm computations over finite fields using Reed-Solomon codes

Daniel Augot, François Morain

Cheng and Wan have related the decoding of Reed-Solomon codes to the computation of discrete logarithms over finite fields, with the aim of proving the hardness of their decoding.…