高级检索

    全同态加密研究进展

    Research Progress of Fully Homomorphic Encryption

    • 摘要: 随着数字化进程的加速推进,数据安全和隐私保护问题备受关注. 数据加密一直是解决该问题的重要手段,但加密存储和传输较为常见,一旦涉及计算往往需要先解密,以明文形式计算后再加密. 全同态加密将加密延展到计算层面,无需解密即可以完成密文的处理任务,有保护数据安全和用户隐私的天然特性. 首个全同态加密方案于2009年由Gentry提出,自此全同态加密方案一直备受业界和学界的关注. 从全同态加密方案的构造思想、不同研究阶段及面临的问题等方面梳理分析了全同态加密10余年的研究进展,从算法库实践、标准化进展以及典型应用场景等方面介绍了全同态加密的应用进展,并提出未来研究的方向建议.

       

      Abstract: With the acceleration of the digitization process, the problem of data security and privacy protection has attracted much attention. Data encryption has always been an important means to solve this problem. However, it is common to store and transfer data in encrypted form. Once calculation is involved, it is often necessary to decrypt the ciphertext, perform the calculation in plaintext, and then encrypt the calculation result. Full homomorphic encryption extends encryption to the computing, which can perform meaningful calculations in ciphertext without decryption, and the calculation process and result are encrypted, so it has the natural characteristics of protecting data security and user privacy. The first full homomorphic encryption scheme was proposed by Gentry in 2009, and then full homomorphic encryption has always attracted the attention of the industry and academia. After more than ten years of research, full homomorphic encryption has developed to the fourth stage, substantial progress has been made. This paper reviews and analyzes the research progress of full homomorphic encryption from the aspects of the construction idea, different research stages and problems faced, introduces the application progress of full homomorphic encryption from the aspects of algorithm library, standardization progress and typical application scenarios, and puts forward suggestions for future research direction.

       

    /

    返回文章
    返回