Guardianship in Group Key Exchange for Limited Environments

ePrint Report: Guardianship in Group Key Exchange for Limited Environments

Elsie Mestl Fondevik, Britta Hale, Xisen Tian

Post-compromise security (PCS) has been a core goal of end-to-end encrypted messaging applications for many years, both in one-to-one continuous key agreement (CKA) and for groups (CGKA). At its essence, PCS relies on a compromised party to perform a key update in order to `self-heal'. However, due to bandwidth constraints, receive-only mode, and various other environmental demands of the growing number of use …

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