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Impact of Cryptographic operations on the QoS of VoIP system  

홍기훈 (숭실대학교 정보통신전자공학부 통신망 보안연구실)
정수환 (숭실대학교 정보통신전자공학부 통신망 보안연구실)
유현경 (한국전자통신연구원 네트워크기술연구소)
김도영 (한국전자통신연구원 네트워크기술연구소)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.28, no.10B, 2003 , pp. 916-926 More about this Journal
Abstract
The encryption of packets increases delay and delay jitter that may degrade the quality of service (QoS) in real-time communications. So, we analyzed the delay jitter, delay, and interval delay between consecutive packets which were encrypted by the DES, 3DES, SEED and AES algorithms in this study. The interval delay and jitter of three algorithms such as the DES, SEED, AES were similar to the results of no encryption. But in the case of 3DES, the encryption of packets increases the variance of interval delay and jitter in comparison with other algorithms. we also analyzed properties of security and an efficiency of RTP security between SRTP and H.235.
Keywords
VoIP; Security; QoS;
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  • Reference
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