公开(公告)号：US09374220B2

公开(公告)日：2016-06-21

申请号：US14174519

申请日：2014-02-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Taek Young Youn ,  Nam Su Jho ,  Jung Yeon Hwang ,  Ku Young Chang

IPC: H04L9/30 ,  H04L9/08 ,  H04L9/00

CPC classification number: H04L9/0861 ,  H04L9/008 ,  H04L9/30

Abstract: The present invention relates to a technique which provides a function of compressed encryption large pieces of plaintext information in a single ciphertext in order to improve a space efficiency of the encryption data which occupies most of a storage space to design an efficient SHE technique which is a base of the FHE technique design. More specifically, the present invention relates to a technique which is designed to improve a structure in which only one bit is encrypted/decrypted in the technique of the prior art to encrypt/decrypt multiple bit information to improve the space efficiency for storing a ciphertext.

Abstract translation: 本发明涉及一种在单个密文中提供压缩大量明文信息的功能的技术，以便提高占用大部分存储空间的加密数据的空间效率，从而设计出一种有效的SHE技术 FHE技术设计基地。 更具体地，本发明涉及一种技术，其被设计为改进在现有技术中只有一个比特被加密/解密以加密/解密多个比特信息以提高用于存储密文的空间效率的结构。