Rob Helmer's blog posts matching the tag: cryptography

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Architecture diagram showing OAuth provider, auth worker encrypting PII with public key, ciphertext-only database, and separate email worker with private key.

3/24/2026 · 9 min read

Asymmetric Encryption for Player PII in Multiplayer Games

How HPKE encryption protects user email addresses and personal data so the server can't read them even if compromised.

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