Farid Javani

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cMix is a suite of cryptographic protocols that can replace today's dominant chat systems, offering superior confidentiality and anonymity, while providing comparable performance to users. cMix permutes batches of uniform-length messages through a fixed cascade of nodes and moves all expensive public-key operations into precomputations that can be carried(More)
cMix is the first practical system that can prevent traffic analysis of chat messages at scale. It creates a complete anonymity set every second for all messages sent during the previous second. cMix uniquely requires no public-key operations during the sending of a chat message—neither by the smart phone sending the message, the roughly ten nodes that(More)
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