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Try the post-quantum path

Two complementary experiences:

  • ML-KEM-1024 — encapsulate, decapsulate, hybrid encrypt. The post-quantum KEM Glitr builds on.
  • PQXDH — classical X25519 plus ML-KEM, in the shape Signal specified for a post-quantum handshake.
ML-KEM-1024 encapsulate and decapsulate tools
ML-KEM-1024 is the post-quantum KEM Glitr builds on.
PQXDH hybrid handshake combining X25519 and ML-KEM
PQXDH is the hybrid handshake shape.

Open ML-KEM
Open PQXDH

These are spec-faithful and educational. They are not the Signal consumer app, and they are not a guarantee about tomorrow’s cryptanalysis. They are the “we did not stop at 2016 curves” part of Glitr.

Read the user-level story: Signal Protocol and the post-quantum path.