Search

针对蓝牙语音信号加密后失去语音特征而不能通过语音信道传输的问题，建立蓝牙语音加密数据传输 模型，提出一种面向蓝牙语音加密传输的波形码本生成算法。该算法以子载波调制生成初始调制码本，训练数 据得到解调码本，通过设计末位淘汰机制的粒子对算法寻找最优码本。仿真分析表明该码本生成算法具有收敛 速度快的优势，能够生成不同比特传输速率和符号错误率低的波形码本。实验结果表明，在蓝牙中使用该波形 码本传输数据具有较低的符号错误率。 [ABSTRACT FROM AUTHOR]

Since the security mechanism of bluetooth low energy protocol does not verify the legitimacy of user identity，firstly， this paper analysed and pointed out that the existing bluetooth user authentication protocol could not resist counterfeiting and eavesdropping attacks，and also could not be applied to BLE protocol. Secondly, combining with the BLE protocol hierarchy，it designed BLE user authentication model，then established BLE user authentication scheme based on quadratic residue，which used the Chinese remainder theorem to solve quadratic residue, realizing user authentication mutual authentication and user anonymity. Security analysis shows that the scheme can be effective against the threats of user password leakage, loss of the slave device，impersonation attack and user privacy attack. Theoretical analysis and the experiment results show that it has higher efficiency and smaller storage requirements. Thus, the scheme is suitable for BLE devices. [ABSTRACT FROM AUTHOR]

Copyright of Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)