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@petal.cafe

@petal.cafe
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blogOct 7, 2026
Sunflowers have math in them, wtf?
How to pack as many seeds as possible into a sunflower head: Fibonacci
mathsplants
B
blogMar 21, 2026
CTFs are dead
LLMs are killing CTFs
rant
B
blogJan 18, 2026
LLMs killed my will to do stuff
How llms replaced my ability to sit with hard problems, and why it maybe matters
rant
B
blogMar 21, 2025
No Ads, No Algorithms, No Problem
Big techs hate it! This one simple trick lets you read what you want
rss
B
blogJan 6, 2025
SquarePants Sponge Hashing
A quick explanation of the sponge hashing algorithm, notably used in SHA-3
crypto
B
blogDec 3, 2024
Adaptor Signatures FtW
A simple and neat way to "lock" your Schnorr signatures, enabling atomic swaps and more!
crypto
B
blogNov 29, 2024
Elliptic Curves for Sane People
A gentle introduction to elliptic curve cryptography, without the need for a PhD in mathematics.
crypto
B
blogNov 29, 2024
Using ECC for (Multi-)Signatures
Math-powered methods for proving message authenticity, sounds great, doesn't it?
crypto
B
blogNov 29, 2024
Shamir Secret Sharing in a Nutshell
How to split a secret among multiple persons, so that only any subset of n people can recover it ?
crypto
B
blogNov 29, 2024
Lagrange Interpolation Primer
A quick and simple explanation on the concept of polynomial interpolation, here Lagrange's in particular.
maths
B
blogNov 12, 2024
Oh, so you want to work at Traefik?
A pretty unusual way to apply for a developer job at Traefik...
ctf