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Even online freedom isn’t free. About Download Documentation Press Contact Clique is network protocol for communicating in the presence of strong adversaries, specifically parties with unlimited funding, computing power, network access, and legal authority. Until Clique’s publication, there has been no organized, systematic way of communicating in secret over a distance. Previous methods either relied on eavesdroppers not discovering the data channel, or on encrypting the data. The first model was fragile, required that communication stop when a channel was discovered, and required absolute trust of every user. The encryption model, on the other hand, compromised sensitive metadata including sender and recipient identity, message length, and time of transmission. More often than not, unencrypted metadata can be as sensitive as the actual content of a message. The Clique protoc...