fuklief

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Comment · 2 months ago

Congrats on the 30 years of marriage!

Comment · 2 years ago

> It's better to use a constant time algorithm, but that's harder to do in a curve generic way and has a pretty significant performance impact (particular before the safegcd paper).

Crypto noob here, but isn't modular inverse the same as modular exponentiation through Fermat's little theorem? I.e., x^-1 mod n is the same as computing x^{n - 2} mod n which we know how to do in a constant-time way with a Montgomery ladder. Or is that too slow?

Comment · 2 years ago

I didn't know US/UK gov were against hybrids. AFAIU, the French and Germans are recommending hybrids as a first step before stand alone PQC [0].

[0]: https://cyber.gouv.fr/en/publications/follow-position-paper-...

Comment · 3 years ago

This survey by the same author also provides a good comparison https://saaramar.github.io/memory_safety_blogpost_2022/

Codasip delivers processor security to actively prevent most common cyberattacks codasip.com

1 fuklief 3 years ago 0 comments

CHERIoT: Complete Memory Safety for Embedded Devices [pdf] cheriot.org

3 fuklief 3 years ago 0 comments

Comment · 3 years ago

I believe it means flattening the AST, here is a nice blog post about this technique https://www.cs.cornell.edu/~asampson/blog/flattening.html

Comment · 3 years ago

I personally did not know about classes prépa before the last year of high school. I will forever be thankful for my maths teacher who told me about it that year, since I would have probably slacked off at university.

Comment · 3 years ago

- Make them good at science, i.e., Maths and Physics.

- Get them into a decent high school, e.g., Henri 4 or Louis Le Grand in Paris.

- Hope they have good grades and manage to get into a good preparatory class [1], e.g., Henri 4, Louis Le Grand in Paris, or Hoche and Sainte-Geneniève in Versailles.

- Make sure they don't slack off, and hope they get into a good engineer school, e.g., Ecole Polytechnique, Ecole des Mines, Ecole Nationale des Ponts et Chaussés, CentraleSupelec.

(Lists are not exhaustive)

If they manage to get into one of these schools, they will most likely end up not have any difficulty to find a somewhat well-paid job in France.

[1]: https://en.wikipedia.org/wiki/Classe_pr%C3%A9paratoire_aux_g...

Comment · 3 years ago

Maybe they thought it's spelled "your" instead of "you're".

Comment · 3 years ago

> Google put in significant engineering effort into "Ryu", a parsing library for double-precision floating point numbers: https://github.com/ulfjack/ryu

It's not a parsing library, but a printing one, i.e., double -> string. https://github.com/fastfloat/fast_float is a parsing library, i.e., string -> double, not by Google though, but was indeed motivated by parsing JSON fast https://lemire.me/blog/2020/03/10/fast-float-parsing-in-prac...