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本文通过研究移动通信充值卡加密系统的工作流程,给出了系统的数据安全策略;在此基础上,通过对系统使用的各种智能CPU卡的设计进行分析,进一步给出了加密系统中的密钥生成和密钥管理的设计方案。
In this paper, through the research of the working flow of mobile communication prepaid card encryption system, the data security strategy of the system is given. Based on the analysis of the design of various smart CPU cards used in the system, Key generation and key management design.