Daniel Richter

Open-Source Security & Linux Privacy Specialist

About the author

Daniel Richter is an open-source software advocate and Linux security specialist who has contributed to several privacy-focused projects including Tor, Tails, and various open-source VPN clients. With over 15 years of experience in systems administration and a deep commitment to software freedom, Daniel brings a community-driven perspective to cybersecurity writing. He maintains a personal blog on hardening Linux systems and has mentored dozens of contributors to privacy-focused open-source projects.

Zero-Knowledge Proofs

Zero-Knowledge Proofs for P2P Metadata Privacy

Learn how Zero-Knowledge Proofs (ZKP) protect metadata privacy in P2P networks, dVPNs, and DePIN. Explore zk-SNARKs and STARKs for secure bandwidth sharing.

March 5, 2026 9 min read

[Tutorial] Squirrel VPN User Guide (Mobile Version)

This guide provides instructions on how to download, purchase, and use the Squirrel VPN mobile app on iOS and Android devices.

March 4, 2026 4 min read

Proof of Bandwidth

Proof of Bandwidth Verification Mechanisms

Explore how Proof of Bandwidth verification mechanisms work in dVPN and DePIN networks to ensure fair bandwidth mining and p2p sharing.

January 23, 2026 7 min read

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