Pawel Pokrywka (pawelpokrywka)

Pawel Pokrywka

Privacy, security, cryptography. Here is my blog: https://www.pawelpokrywka.com/

103 Followers

Recent casts

I made a little web demo that bends your idea of what “offline” really means. Chrome + SXG + a few tricks = surprising results. Try it yourself: 🔗 https://planujemywesele.pl/sxg-tests/offline-abuse

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Signed Exchanges enable instant loading, but hidden, often undocumented prefetching errors can break it. In my latest post, I uncover these pitfalls and how to fix them so you can implement SXG without surprises. Read it here: https://blog.pawelpokrywka.com/p/other-errors-with-signed-exchanges

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Top casts

Cloudflare enabled Encrypted Hello (ECH) for all users (paid Plans need to turn it on explicitly). From now on, all the HTTPS traffic is encrypted, including website address. It makes censorship harder.

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Fantastic thread covering important Ethereum protocols. Every protocol described in one, short tweet. https://x.com/ethereumintern_/status/1816134678086406562?t=o5SgF6BP9F4kye4ju8UKkA&s=09

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From what I understand, one of the things that differentiates solo stakers from professionals is the attestation rate. It is lower in general. This results in lower attestation rewards and may discourage solo staking. How to prevent that from happening?

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Do you use disk encryption? I've released a new version of cryptreboot, a tool for rebooting a Linux system with an encrypted disk that asks for the passphrase to unlock the disk before the reboot, rather than after as in case of normal reboot. This can be useful when rebooting remote or headless systems, where entering the passphrase typically requires local access. The entire process is handled using an in-memory initramfs patching, ensuring that secrets are handled securely and never touch the disk. Version 0.3.0 now includes native support for ZFS encryption. I'm planning to add more features, including passphrase-less reboots, which would be particularly beneficial for desktop users. If you'd like to try cryptreboot, here's a link. And if you've already tried it, I'd love to hear your feedback! https://phantomno.de/cryptreboot

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Onchain profile

Ethereum addresses