Advanced cryptographic ratcheting
12y ago
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SignalAdvanced cryptographic ratchetingsignal.orgAt Open Whisper Systems, we’ve been working on improving our encrypted asynchronous chat protocol for TextSecure. The TextSecure protocol was originally a derivative of OTR , with minor changes to accommodate it for transports with constraints like SMS or Push. Some of the recent changes we’ve made include simplifying and improving OTR’s deniability , as well as creating a key exchange mechanism for asynchronous transports . Our most recent change incorporates what we believe to be substantial improvements to OTR’s forward secrecy “ratchet.” Read more...
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