New voice over Internet protocol technique with hierarchical data security protection

Author

Guo, J.A. ; Yen, J.-C. ; Pai, H.-F.

Author_Institution

Dept. of Comput. Sci. & Inf. Eng., Nat. Chung-Cheng Univ., Chia, Taiwan

Volume

149

Issue

4

fYear

2002

fDate

8/1/2002 12:00:00 AM

Firstpage

237

Lastpage

243

Abstract

The authors propose a voice over Internet protocol (VoIP) technique with a new hierarchical data security protection (HDSP) scheme. The proposed HDSP scheme can maintain the voice quality degraded from packet loss and preserve high data security. It performs both the data inter-leaving on the inter-frame of voice for achieving better error recovery of voices suffering from continuous packet loss, and the data encryption on the intra-frame of voice for achieving high data security, which are controlled by a random bit-string sequence generated from a chaotic system. To demonstrate the performance of the proposed HDSP scheme, we have successfully verified and analysed the proposed approach through software simulation and statistical measures on several test voices

Keywords

Internet telephony; cryptography; protocols; security of data; HDSP scheme; VoIP; chaotic system; data encryption; data interleaving; hierarchical data security protection; high data security; packet loss; packet voice communications; random bit-string sequence; software simulation; statistical measures; voice over Internet protocol;

fLanguage

English

Journal_Title

Vision, Image and Signal Processing, IEE Proceedings -

Publisher

iet

ISSN

1350-245X

Type

jour

DOI

10.1049/ip-vis:20020457

Filename

1040139