基于Speex编码的网络通话语音加密方法实现  

Implementation of Voice Encryption in Network Calls based on Speex Codec

作　　者：张东[1] 陈晨[1] 

机构地区：[1]四川大学计算机学院,四川成都610065

出　　处：《通信技术》2014年第12期1451-1454,共4页Communications Technology

摘　　要：针对Android系统在网络通话过程中语音数据的传输效率和安全性,本文设计实现了语音的再编码和加密。通过Speex编码对获取的源音频编码压缩,使用AES和RSA算法对音频数据进行加密处理,将加密后的音频数据和加密口令发送给语音接收端,建立安全的语音通话过程。实验证明在确保语音通话质量的前提下,减少了语音数据传输时间和加密的数据量,确保了通话中的安全性。Aiming at the transmission efficiency and security of voice data in network calls of Android system this paper proposes a design and implementation of voice recoding and encryption. The acquired source voice data is encoded and compressed through Speex codec, then the voice data is encrpted via AES and RSA algorithm, and then the encrypted voice data and encrypt-password is sent to the receiver, thus the secure voice communication is established. Experiments indicate that without any influence on voice quality, the transmission time of voice data and the data size of encryption operation are reduced while the data security guaranteed.

关 键 词：ANDROID系统 Speex编码 AES RSA 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]