Based on the embedded system and cipher technology, a digital speech scrambler is designed and realized in this thesis which can security transmit speech, video, fax and data.

 
  • 本文利用嵌入式系统技术和密码学技术,利用现有的PSTN或ISDN,采用先进的分组加密算法,设计实现了基于EPSON 33209 体系的数字语音保密电话,实现语音、视频、传真及数据的安全传输。
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