The paper analyzed the content and importance of Sinopec PKI system construc-tion, introduced the application effect after construction of PKI system combining with actual business application and gradation protection requirements , and put forth the trend and advices for the further application of the system.%分析中国石化 PKI系统建设的内容及重要性,结合实际业务应用和等级保护相关要求,介绍 PKI系统建设后的应用效果,提出后续深化应用的方向及建议。
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