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.
英
美
- 本文利用嵌入式系統技術(shù)和密碼學(xué)技術(shù),利用現有的PSTN或ISDN,采用先進(jìn)的分組加密算法,設計實(shí)現了基于EPSON 33209 體系的數字語(yǔ)音保密電話(huà),實(shí)現語(yǔ)音、視頻、傳真及數據的安全傳輸。