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产品设计信息在网络传输过程中易出现机密性、正确性和完整性丧失等安全问题。为此，本文探讨了安全通信的设计信息模型和实现该信息模型的数据加密技术和数字签名技术，并阐述了其具体实现过程。
Product design information in the network transmission process prone to confidentiality, accuracy and loss of completeness and other security issues. Therefore, this paper explores the design information model of secure communication and the data encryption technology and digital signature technology to realize the information model, and expounds the concrete realization process.