Signal Message Specifications >> The X3DH Key Agreement ProtocolThis document describes the "X3DH" (or "Extended Triple Diffie-Hellman") key agreement protocol.https://signal.org/docs/specifications/x3dh/signal.orghttps://signal.org/docs/specifications/x3dh/x3dh.pdfX3DH Key Agreement Protocol출처 : https://signal.org/docs/specifications/x3dh/x3dh.pdfcurve : X25519 or X448hash : 256 or 512 bit hash function (SHA-256, SHA-512 등)info : 애플리https://velog.io/@hunjison/X3DH-Key-Agreement-Protocol