cryptography, security, and random thoughts

Hey! I'm David, cofounder of zkSecurity and author of Real-World Cryptography.

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I'm also an advisor at Archetype. I was previously a cryptography architect of Mina at O(1) Labs, the security lead for Libra/Diem at Facebook, and a security engineer at the Cryptography Services of NCC Group. Welcome to my blog about cryptography, security, and other related topics.

“Cryptologie” is the French spelling of “cryptology.”

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Hack of the Day: How do I run untrusted shell code?

2014-10-20 blog

I’ve run into a nice series of video called “hack of the day” from Vivek-Ramachandran.

In this first video he explains two techniques : * jump-call-pop * xor decoding

I also got nice tips like the examining string function in gdb : x/s $ebx or the folder usr/include/asm that contains plenty of information about assembly.

The full playlist can be found on securitytube.net

elsewhere

book Real-World Cryptography Applied cryptography, from Manning. podcast Two And A Half Coins Crypto, banking & distributed systems. youtube Cryptography videos Concepts & security, explained.

Hack of the Day: How do I run untrusted shell code?

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elsewhere