Hidden VoIP calling records from networking intermediaries

Zhang, Ge; Berthold, Stefan

doi:10.1145/1941530.1941533

Cited by 7 publications

(4 citation statements)

References 23 publications

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“…Later when u 3 and u 4 terminate their conversation, the adversary can observe the disappearance of the flows and thus knows that u 3 and u 4 have communicated before. This attack is quite straightforward and thus no experiments have been done in [59].…”

Section: Appear and Disappear Of Flows [59]mentioning

confidence: 99%

“…k-anonymity on a C/S architecture [59]: To address the problem in Sect. 4.3.5, we proposed a scheme to process k VoIP conversations as a batch on a C/S architecture [59].…”

Section: Achieving K-anonymitymentioning

confidence: 99%

“…4.3.5, we proposed a scheme to process k VoIP conversations as a batch on a C/S architecture [59]. The scheme requires media flow to be generated using an FBR codec with silence suppression off.…”

Section: Achieving K-anonymitymentioning

confidence: 99%

See 2 more Smart Citations

A survey on anonymous voice over IP communication: attacks and defenses

Zhang¹,

Fischer‐Hübner²

2014

Electron Commer Res

Self Cite

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Anonymous voice over IP (VoIP) communication is important for many users, in particular, journalists, human rights workers and the military. Recent research work has shown an increasing interest in methods of anonymous VoIP communication. This survey starts by introducing and identifying the major concepts and challenges in this field. Then we review anonymity attacks on VoIP and the existing work done to design defending strategies. We also propose a taxonomy of attacks and defenses. Finally, we discuss possible future work.

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Section: Appear and Disappear Of Flows [59]mentioning

confidence: 99%

“…k-anonymity on a C/S architecture [59]: To address the problem in Sect. 4.3.5, we proposed a scheme to process k VoIP conversations as a batch on a C/S architecture [59].…”

Section: Achieving K-anonymitymentioning

confidence: 99%

See 1 more Smart Citation

A survey on anonymous voice over IP communication: attacks and defenses

Zhang¹,

Fischer‐Hübner²

2014

Electron Commer Res

Self Cite

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“…Zhang and Berthold [86] discuss several passive traffic analysis attacks on VoIP systems. These attacks exploit both signaling and media flow information.…”

Section: D) Captchas and Puzzles (4 Items)mentioning

confidence: 99%

A Comprehensive Survey of Voice over IP Security Research

Keromytis

2012

IEEE Commun. Surv. Tutorials

116

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Abstract-We present a comprehensive survey of Voice over IP security academic research, using a set of 245 publications forming a closed cross-citation set. We classify these papers according to an extended version of the VoIP Security Alliance (VoIPSA) Threat Taxonomy. Our goal is to provide a roadmap for researchers seeking to understand existing capabilities and to identify gaps in addressing the numerous threats and vulnerabilities present in VoIP systems. We discuss the implications of our findings with respect to vulnerabilities reported in a variety of VoIP products.We identify two specific problem areas (denial of service, and service abuse) as requiring significant more attention from the research community. We also find that the overwhelming majority of the surveyed work takes a black box view of VoIP systems that avoids examining their internal structure and implementation. Such an approach may miss the mark in terms of addressing the main sources of vulnerabilities, i.e., implementation bugs and misconfigurations. Finally, we argue for further work on understanding cross-protocol and cross-mechanism vulnerabilities (emergent properties), which are the byproduct of a highly complex system-of-systems and an indication of the issues in future large-scale systems.

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A survey on anonymous voice over IP communication: attacks and defenses

Zhang

Fischer‐Hübner

2019

Electron Commer Res

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Hidden VoIP calling records from networking intermediaries

Cited by 7 publications

References 23 publications

A survey on anonymous voice over IP communication: attacks and defenses

A survey on anonymous voice over IP communication: attacks and defenses

A Comprehensive Survey of Voice over IP Security Research

A survey on anonymous voice over IP communication: attacks and defenses

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