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Implementation of Secure VoIP System based on H.235  

임범진 (숭실대학교 정보통신전자공학부 통신망 보안 연구실)
홍기훈 (숭실대학교 정보통신전자공학부 통신망 보안 연구실)
정수환 (숭실대학교 정보통신전자공학부 통신망 보안 연구실)
유현경 (한국전자통신연구원 네트워크기술연구소 네트워크서비스연구부 VoIP 네트워크연동팀)
김도영 (한국전자통신연구원 네트워크기술연구소 네트워크서비스연구부 VoIP 네트워크연동팀)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.12C, 2002 , pp. 1238-1244 More about this Journal
Abstract
In this paper, H.235-based security mechanism for H.323 multimedia applications was implemented. H.235 covers authentication using HMAC, Diffie-Hellman key exchange, session key management for voice channel, and encryption functions such as DES, 3DES, RC2. Extra encryption algorithms such as SEED, and AES were also included for possible use in the future. And, we also analyzed the quality of service (QoS), the requirement of implementation, and interoperability to the result in this study. The results could be applied to secure simple IP phone terminals, gateways, or gatekeepers.
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  • Reference
1 HMAC: Keyed-Hashing for Message Authentication /
[ IETF ] / RFC 2104
2 Baseline Security Profile /
[ ITU-T ] / H.235 v2 Annex.E
3 /
[] / OpenH323 Project
4 Signature Security Profile /
[ ITU-T ] / H.235 v2 Annex.E
5 Packet-based multimedia communications systems /
[ ITU-T ] / H.323 v4
6 암호화 연산에 따른 VoIP QoS 측정 및 분석 /
[ 홍기훈;임범진;정수환 ] / 한국정보보호학회 종합학술발표회 논문집
7 Control Protocol for Multimedia Communication /
[ ITU-T ] / H.245
8 Call signaling protocols and media stream packetization for packet-based multimedia communication systems /
[ ITU-T ] / H.225.0
9 Security and encryption for H-Series(H.323 and other H.245-based) multimedia terminals /
[ ITU-T ] / H.235 v2
10 Diffie-Hellman Key-Agreement Standary version 1.4 /
[ RSA lab. ] / PKCS #3
11 128비트 블록암호알고리즘 표준(SEED) /
[ 한국정보통신기술협회 ] / TTAS.KO-12.0004
12 /
[ Joan Daemen;Vincent Rijmen ] / AES Proposal: Rijndeal
13 Security for H.323 Annex.F(SASET) /
[ ITU-T ] / H.323 Annex.J