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I'm an open source developer working primarily in cryptographic applications. I author the widely used acmetool Let's Encrypt/ACME client.

Featured work

  1. hlandau/acmetool

    🔒 acmetool, an automatic certificate acquisition tool for ACME (Let's Encrypt)

  2. hlandau/passlib

    🔑 Idiotproof golang password validation library inspired by Python's passlib

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