基于数字签名的医疗文书加密验证系统的设计与实现

Design and Implementation of Medical Document Encryption and Verification System Based on Digital Signature

目的通过对现有电子签名系统进行国密算法改造,保障医院医疗文书无纸化项目顺利推进,实现电子医疗文书的防篡改性和可验证性。方法通过建立全双机热备硬件架构,并利用国密算法、数字签名技术、实体KEY和服务器签名技术,对系统进行改造。结果实现了硬件架构双机热备和国密算法升级,目前放射、超声、病理等医技科室已经完成相应改造,服务器压力测试失败成功比约为5.8×10-5,完全可支撑下一步全院病案无纸化改造。结论通过国密算法和数字签名等信息技术手段,实现了医院电子医疗文书不可篡改的三方验证,从而帮助医院进一步推进医疗文书无纸化,并为医疗数据共享和完备的个人健康档案建设提供基础。

Objective Through improve the national security algorithm of the existing electronic signature system,to ensure the smooth progress of the paperless project of hospital medical documents,and achieve tamper resistance and verifiability of electronic medical documents.Methods The system was modified by establishing a fully dual machine hot standby hardware architecture and utilizing national security algorithms,digital signature technology,entity KEY,and server signature technology.Results The hardware architecture has been achieved with dual machine hot standby,and the national security algorithm has been upgraded.Currently,medical technology departments such as radiology,ultrasound,and pathology have completed corresponding renovations,and the success to failure ratio of server pressure testing was about 5.8×10-5,which could fully support the next step of paperless transformation of the hospital medical records.Conclusion Through information technology means such as national security algorithm and digital signature technology,the tamper proof tripartite verification of hospital electronic medical documents is realized,which helps the hospital to further promote the paperless medical documents,and provides the foundation for medical data sharing and complete personal health archives construction.