Welcome to the resource topic for 2016/1028
Title:
Ratcheted Encryption and Key Exchange: The Security of Messaging
Authors: Mihir Bellare, Asha Camper Singh, Joseph Jaeger, Maya Nyayapati, Igors Stepanovs
Abstract:We aim to understand, formalize and provably achieve the goals underlying the core key-ratcheting technique of Borisov, Goldberg and Brewer, extensions of which are now used in secure messaging systems. We give syntax and security definitions for ratcheted encryption and key-exchange. We give a proven-secure protocol for ratcheted key exchange. We then show how to generically obtain ratcheted encryption from ratcheted key-exchange and standard encryption.
ePrint: https://eprint.iacr.org/2016/1028
Talk: https://www.youtube.com/watch?v=vT6k9J7aWm0
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