在详细分析DES的基本原理和应用模式的基础上，结合DES硬件实现的特点，采用正向设计的方法实现了适用于IC卡等有嵌入式安全需要的系统中的DES模块。
On analysis of the principle and application mode of des, a des module which fits for embedded security system such as IC card is realized by topdown design methods.
在此基础上，本人专门为该嵌入式浏览器设计了SSL模块，该模块可以很好地与该嵌入式浏览器结合，实现了数据的安全传输。
On the basis of this, we specialized in the design of the SSL module for the embedded browser and achieved a secure transmission of data.
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