대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1999년도 추계학술대회 논문집 학회본부 B
- /
- Pages.700-702
- /
- 1999
대역 스크램블을 이용한 음성 보호방식
Speech Encryption Scheme Using Frequency Band Scrambling
- Ji, Hyung-Kun (Dongguk University) ;
- Lee, Dong-Wook (Dongguk University)
- 발행 : 1999.11.20
초록
The protection of data which we want to keep secret from invalid users has become a main topic nowadays. This paper introduces a encryption scheme for protecting speech signals from eavesdropping. The proposed encryption scheme adopts a secure voice cryptographic algorithm based on the scrambling in frequency band. In order to improve the conventional speech signal encryption scheme, we have randomly permuted DCT coefficients of speech signal. Simulation results are included to show the performance of the proposed algorithm for secure transmission of speech signals.
키워드