Ida Tucker

A Comprehensive Study of the Signal Handshake Protocol: Bundled Authenticated Key Exchange

The Signal protocol relies on a special handshake protocol, formerly X3DH and now PQXDH, to set up secure conversations. One of its privacy properties, of value to Signal, is …

Keitaro Hashimoto
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Signal

Comprehensive Deniability Analysis of Signal Handshake Protocols: X3DH, PQXDH to Fully Post-Quantum with Deniable Ring Signatures

The Signal protocol relies on a handshake protocol, formerly X3DH and now PQXDH, to set up secure conversations. One of its privacy properties, of value to Signal, is deniability, …

Shuichi Katsumata
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