Revealing the Calling History of SIP VoIP Systems by Timing Attacks. - Ge Zhang 001; Simone Fischer-Hübner; Leonardo A. Martucci; Sven Ehlert (ARES, 2009)

An Analysis for Anonymity and Unlinkability for a VoIP Conversation. - Ge Zhang 001 (PrimeLife, 2009)

Peer-to-Peer VoIP Communications Using Anonymisation Overlay Networks. - Ge Zhang 001; Simone Fischer-Hübner (Communications and Multimedia Security, 2010)

SIP Proxies: New Reflectors in the Internet. - Ge Zhang 001; Jordi Jaen Pallares; Yacine Rebahi; Simone Fischer-Hübner (Communications and Multimedia Security, 2010)

Hidden VoIP calling records from networking intermediaries. - Ge Zhang 001; Stefan Berthold (IPTComm, 2010)

Blocking attacks on SIP VoIP proxies caused by external processing. - Ge Zhang 001; Simone Fischer-Hübner; Sven Ehlert (Telecommun. Syst., 2010)

Timing Attacks on PIN Input in VoIP Networks (Short Paper). - Ge Zhang 001; Simone Fischer-Hübner (DIMVA, 2011)

Detecting Near-Duplicate SPITs in Voice Mailboxes Using Hashes. - Ge Zhang 001; Simone Fischer-Hübner (ISC, 2011)

Analyzing Key-Click Patterns of PIN Input for Recognizing VoIP Users. - Ge Zhang 001 (SEC, 2011)

Counteract DNS Attacks on SIP Proxies Using Bloom Filters. - Ge Zhang 001; Simone Fischer-Hübner (ARES, 2013)

A survey on anonymous voice over IP communication: attacks and defenses. - Ge Zhang 001; Simone Fischer-Hübner (Electron. Commer. Res., 2019)