jwt-pq is an open-source Ruby library that adds post-quantum JWT signature support using ML-DSA (FIPS 204) and hybrid EdDSA+ML-DSA algorithms. It integrates with the ruby-jwt ecosystem, supports JWK import/export, and provides a streaming-safe JWKS loader for secure authentication in Ruby applications.
jwt-pq is a Frameworks & SDKs product. It focuses on enabling secure JWT authentication in Ruby applications with post-quantum cryptography support. jwt-pq is an open-source project aimed at ruby developers needing post-quantum JWT authentication. The project is open source (MIT). jwt-pq is available on the web and API.
Behind jwt-pq is Marcelo Pazzo, and the product first shipped in 2026. The project is developed in the open on GitHub with 54 commits in the last 90 days. Among its 7 catalogued features are post-quantum signatures, hybrid algorithms, and JWK import/export.
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