28,943 reputation
453109
bio website bolet.org/~pornin
location Quebec City, Canada
age 38
visits member for 2 years, 9 months
seen 1 hour ago

Cryptographer, programmer in several languages (C, Java, several assemblies, Pascal, Forth...). I also have a life.


Jan
15
awarded  Nice Answer
Jan
14
answered Is there a feasible method by which NIST ECC curves over prime fields could be intentionally rigged?
Jan
4
answered Can a salt for a password hash be public?
Jan
3
answered Can you explain Bleichenbacher's CCA attack on PKCS#1 v1.5?
Jan
2
reviewed Approve suggested edit on congruence tag wiki excerpt
Dec
29
awarded  Enlightened
Dec
29
awarded  Nice Answer
Dec
27
revised Why is public-key encryption so much less efficient than secret-key encryption?
edited body
Dec
26
answered EC ElGamal versus static+ephemeral ECDH
Dec
26
reviewed Approve suggested edit on accumulators tag wiki excerpt
Dec
26
reviewed Approve suggested edit on accumulators tag wiki
Dec
24
awarded  Good Answer
Dec
23
comment Solve a Modular Exponentiation
This solving method would take an awful lot of time, because the size of $k$ is several thousands of bits (the correct value of $k$ exists, but finding it that way would take billions of times the age of the Universe).
Dec
22
comment Efficiency of computing $e(P,Q)$ Vs $g^a \pmod{p}$?
Any statement on performance is relative to hardware and implementation characteristics and usage conditions, and thus may vary quite a lot. As I said, "don't try to read too much in that figure".
Dec
22
answered With Encrypt-then-MAC, and flexible protocols, do I need to authenticate the authentication?
Dec
21
awarded  Nice Answer
Dec
21
answered Can we say that if $P=NP$ there is no CPA secure public key encryption?
Dec
21
answered Solve a Modular Exponentiation
Dec
20
revised Should I use ECB or CBC encryption mode for my block cipher?
added 6 characters in body
Dec
20
answered Guessing encryption algorithm based on key and ciphertext