david wong

Hey! I'm David, the author of the Real-World Cryptography book. I'm a crypto engineer at O(1) Labs on the Mina cryptocurrency, previously I was the security lead for Diem (formerly Libra) at Novi (Facebook), and a security consultant for the Cryptography Services of NCC Group. This is my blog about cryptography and security and other related topics that I find interesting.

The Real-World Cryptography book is done and shipping! posted 2 weeks ago

Today I received the first copy of my book Real-World Cryptography! You can't imagine how much sweat and love I put into this work in the last two years and a half. It's the book I've always wanted to read, and it's the book I thought the field was missing. It's the book I wanted to have as a student when I was learning about hash functions and ciphers, and it's the book I wish I could have referred to my fellow pentesters when they had questions about TLS or end-to-end encryption. It's the book I'd use as a developer looking for cryptographic libraries and best practice. It's the first book with a cryptocurrency chapter, and it's the book cryptographers will read to learn about password-authenticated key exchanges, sponge functions, the noise protocol framework, post-quantum cryptography, and zero-knowledge proofs. Real-world cryptography is what the field of applied cryptography really looks like today. It's all there.

Get the book here!

real-world cryptography book

real-world cryptography book

real-world cryptography book

real-world cryptography book

real-world cryptography book

real-world cryptography book

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