The basic technology of PKI include encipher digital signature data integrity mechanism digital envelope double digital signature, digital certificate etc.
PKI的基础技术包括加密、数字签名、数据完整性机制、数字信封、双重数字签名，数字证书等。
The essay analyses the structure of financial account system on the net, put forward the course of encipher and declassify in the data transmission course.
文中分析了网上资金结算系统的结构，提出了数据传输过程中加密和解密的流程。
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