Signal의 Double Ratchet 알고리즘

Ref #

• https://gall.dcinside.com/mgallery/board/view/?id=signalmassage&no=29&page=1
• https://gall.dcinside.com/mgallery/board/view/?id=signalmassage&no=15&page=1

Signal #

Double Ratchet #

Ratchet이란

Diffie-Hellman 래칫 #

KDF 대칭 래칫 #