基于不经意传输的密码方案设计与对比分析

Design and Comparative Analysis of Cryptography Schemes Based on Oblivious Transfer

随着数字化时代的发展,对数据安全和隐私保护的需求日益增加,基于不经意传输的密码方案作为一种重要的安全技术,保护数据安全和用户隐私方面发挥着重要作用。本文针对基于不经意传输的密码方案进行了设计与对比分析。首先,对数字产品交易、位置服务隐私保护和区块链数据保密查询等领域的应用需求进行了分析,在充分考虑其正确性、安全性和性能开销等方面的特点,计了满足相应安全和隐私保护要求的不经意传输方案;其次,对比分析了三种基于不经意传输的密码方案在安全性、功能、性能和实用性上的差异,为各个领域的实际应用提供了参考和指导;最后,总结了各方案的优缺点,并展望了自己未来基于不经意传输的密码方案的研究方向。

With the development in digital age,demand on data security and privacy protection is in⁃creasing.As an important security technology,cryptography scheme based on oblivious transfer plays a significant role in protecting data security and user privacy.In this paper,cryptography schemes based on oblivious transfer are designed and compared.First,application requirements are analyzed in fields of digital product transaction,location service privacy protection and blockchain data confidential que⁃ry,etc.With sufficient considerations of feasibility,security and performance overhead,oblivious transfer schemes that satisfy corresponding security and privacy protection requirements are designed.Then,three cryptography schemes based on oblivious transfer are compared in terms of security,func⁃tion,performance and practicability,which may provide reference and guide for practical applications in various fields.Finally,merit and demerit of each scheme is summarized,and future research direc⁃tion for cryptography scheme based on oblivious transfer is prospected.