Continuous Group Key Agreement with Flexible Authorization and Its Applications

ePrint Report: Continuous Group Key Agreement with Flexible Authorization and Its Applications

Kaisei Kajita, Keita Emura, Kazuto Ogawa, Ryo Nojima, Go Ohtake

Secure messaging (SM) protocols allow users to communicate securely over an untrusted infrastructure. The IETF currently works on the standardization of secure group messaging (SGM), which is SM done by a group of two or more people. Alwen et al. formally defined the key agreement protocol used in SGM as continuous group key agreement (CGKA) at CRYPTO 2020. …

applications authorization continuous eprint report key