des digital exchange system 中文意思是什麼
des digital exchange system
解釋
數字交換系統-
The paper discusses the development of web, browser / server mode conception and the content and mechanism of network security based on web, and also describes the basic conception and system of cipher theory, symmetric - based data encryption standard and advanced encryption standard and asymmetric - based rsa. it presents a detailed design of secrecy net of digital government, and advances a des - and - rsa - based security model of information exchange, which makes use of symmetric cryptographic algorithm to encrypt plaintext, and introduces public - key algorithm rsa to encrypt session key to compose digital envelope and to realize digital signature
本文論述了web的發展及其browser / server模式概念，以及基於web的網路安全的內容與機制；闡述了密碼學的基本概念、分類，對稱密鑰密碼體制des與aes以及公開密鑰密碼體制rsa ；最後，利用一種基於des和rsa的信息交換安全模型，詳細地給出了一個數字政府的保密網系統設計方案。
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