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数据的安全性是现实数据中人们最关心的问题之一。传统的密码系统在密钥管理上存在严重缺陷且自身无法克服。近十年来新发展的公开密钥密码PKC(Public Key Cryptosystem)系统在理论上克服了传统密码系统的缺点,开辟了安全通信的新时代。笔者从诸多PKC设计中选择了较好的RSA算法,经过一系列优化,在以IBM-PC为站点的计算机网络上成功地实现了基于RSA理论的PKC系统。这将有利于促进尚未成熟的PKC理论在数据通信特别是蓬勃发展的微机局网领域的研究与应用。
Data security is one of the issues most people care about in real data. The traditional cryptosystem has serious defects in key management and can not be overcome by itself. Public key cryptosystem PKC (Public Key Cryptosystem) newly developed over the past decade overcomes the shortcomings of the traditional cryptosystem theoretically and opens up a new era of secure communications. After selecting a good RSA algorithm from many PKC designs, the author succeeded in implementing the PKC system based on RSA theory through a series of optimization on a computer network with IBM-PC as a site. This will help promote the research and application of the immature PKC theory in the field of data communication, especially the thriving micro-computer network.