2023年全同态加密研究热点回眸

Annual review of advances of full homomorphic encryption technology

在大数据和人工智能时代,全同态加密方法被公认为是解决数据安全与隐私泄露问题的理想技术,但目前存在计算效率差、密文膨胀等问题,严重影响了全同态加密技术的应用和推广。从针对全同态加密算法的硬件加速和围绕全同态加密算法的优化2个方面,回顾了2023年计算机体系结构与密码学相关研究进展:以专用集成电路技术路线为代表的硬件加速效果明显;从算法角度进行优化,进展显著。可以预测,未来几年内,同态加密将与人工智能技术相结合,在跨行业、行业总分机构数据协作和利用中发挥更多价值。

In the era of big data and artificial intelligence,homomorphic encryption methods are widely recognized as an ideal technology to solve data security and privacy leakage problems.However,there are currently issues such as poor computational efficiency and ciphertext inflation,which seriously affect application and promotion of this technology.On the basis of summarizing the current research status,this paper reviews and analyzes the relevant research progress in 2023 from two aspects:hardware acceleration for homomorphic encryption algorithms and optimization of homomorphic encryption algorithms.Significant acceleration effects are attributed to the dedicated integrated circuit technology route;substantial progress has been made in optimization from the algorithm perspective.It can be predicted that in the next few years homomorphic encryption will be combined with artificial intelligence to deliver more value in cross-industry and industry division data collaboration and utilization.