• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.447-450
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• 2011

행정기관 VoIP 서비스는 현재 PSTN망과 인터넷망을 활용하여 기존 전화망보다 저렴한 가격에 음성통화를 할 수 있게 해주는 서비스로 확대되고 있다. 하지만 공공의 보안이 유지 되어야 할 행정기관 VoIP의 경우 보안취약성에 대한 문제들이 발생하고, 해커의 공격을 받을 가능성이 높다. 본 논문은 행정기관에서 유 무선 인터넷을 이용하여 VoIP 서비스 이용 시 발생할 수 있는 침해사고 유형을 분석하고 도청 공격을 실시하여 취약점을 분석한다. 행정기관용 Smart Phone으로 VoIP 취약점을 분석을 위하여 OmniPeek와 AirPcap 장비가 설치되어 있는 실험실 환경에서 도청 공격을 실시한 다. 도청 공격에 따르는 Packet을 분석하고, IP을 확인하여 공격에 의한 침해사고로 도청이 이루어짐을 시험으로 증명한다. 본 논문의 연구는 행정기관뿐 아니라 일반사용자의 Smart Phone과 VoIP 서비스 보안성 강화에 기초자료로 제공 될 것이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.281-284
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• 2011

Smart phone is being used in the job as the ubiquitous society will Without being restricted by the time and place and devices. The rapid increase in the use of smart phones has brought the activation of the mobile job. And government agencies have brought in the transition to a smart society. In this paper, using a Voice over Internet protocol(VoIP) service for your smart phones to enhance security is the study of encryption technologies. External and internal signals, and call encryption and security standards of administrative agencies is the study of VoIP. Smart phone VoIP service is a study that security of equipment certificate, the internal signal and call encryption. This paper will contribute what using smart phone VoIP security and usability In smart generation.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.6
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• pp.1313-1319
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• 2011

VoIP service by taking advantage of the current PSTN network and internet over the existing telephone network at an affordable price allows you to make voice calls to the service is being expanded. However, the security of public must be maintained for security vulnerabilities in Smart Phone VoIP case problems arise, and is likely to be attacked by hackers. In this paper, the Internet, using wired and Smart Phone VoIP services may occur during analysis of the type of incident and vulnerability analysis, the eavesdropping should conduct an attack. Smart Phone VoIP with institutional administration to analyze the vulnerability OmniPeek, AirPcap the equipment is installed in a lab environment to conduct eavesdropping attack. Packet according to the analysis and eavesdropping attacks, IP confirmed that the incident as an attack by the eavesdropping as to become the test proves. In this paper, as well as Smart Phone VoIP users, the current administration and the introduction of Smart Phone service and VoIP service as a basis for enhanced security will be provided.