Twitter’s Bluesky initiative created a little challenge where the goal was to verifiably link different digital identities together. This is my attempt at this.

- 2021年09月03日
- 2 分

My Quick Attempt at Bluesky's Satellite Challenge- 2021年08月03日
- 5 分

Taproot Signatures and BIP-32How do Bitcoin’s new Taproot signatures interact with the good old key derivation methods from BIP-32? It turns out that the answer isn’t all that straightforward.

- 2021年07月10日
- 13 分

Signatures From Identification SchemesIt turns out that all you need to make a signature scheme is a way to prove your identity.

- 2021年07月05日
- 15 分

Introducing NuntiusRecently, I made a toy E2E encrypted messanger, called Nuntius. I had fun tinkering on it, and thought that some of the cryptography involved would be fun to explain.

- 2021年06月20日
- 11 分

End-to-End Encryption in Web AppsEnd-to-end encryption is a very appealing guarantee of privacy, and more applications want to provide this guarantee. Web applications are popular, and they want to implement this functionality in the browser. What kind of guarantees does a user still have with a web app, served to them dynamically?

- 2021年06月06日
- 17 分

Introducing NimotsuRecently, I’ve been working on a little encryption tool called Nimotsu. My goal with this project was to implement all of the cryptographic primitives involved. I had a lot of fun doing so, and thought it would make for an interesting blog post.

- 2021年04月05日
- 23 分

Constant-Time Big Numbers: An IntroductionOver the past couple months, I’ve been working on a library for constant-time Big Numbers in Go. I think it’s about time that I presented a bit of this work.