arxid

Keyed, reversible permutation for obfuscating sequential integer IDs. A frozen spec plus canonical vectors, so every language agrees byte-for-byte. Rust reference + TypeScript port.

3 06 HN points

MIT

last commit 2026-08-03

arx feistel format-preserving-encryption id-obfuscation obfuscation permutation rust typescript

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Keyed, reversible permutation for obfuscating sequential integer IDs. A frozen spec plus canonical vectors, so every language agrees byte-for-byte. Rust reference + TypeScript port.