https://github.com/xero/leviathan-crypto/releases/tag/v2.1.0 leviathan-crypto presents post-quantum ratchet primitives! ratchetInit, KDFChain, kemRatchetEncap/Decap, SkippedKeyStore, & RatchetKeypair are now available for all your sparse post quantum ratchet needs. tools to build your own signal-esque apps! #crypto #cryptography #ratchet #spqr