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alterion-encrypt-pipline

X25519 ECDH key store with timed rotation, a 300-second grace window, and HKDF-SHA256 session key derivation — designed as the key exchange layer for the alterion-encrypt.

X25519 ECDH + AES-256-GCM + HMAC-SHA256 client-side encryption pipeline — JS/TS counterpart to alterion-encrypt

A full end-to-end encryption pipeline for Actix-web — X25519 ECDH key exchange, AES-256-GCM session encryption, Argon2id password hashing, and a MessagePack + Deflate request/response pipeline, all behind a single middleware.