CAJ | 학술논문

基于Kristin Lauter等人的somewhat同态方案，提出“带密钥转换的重线性化技术”。结合该技术与“模转换”，设计了一个基于RLWE的非自举的层次化全同态加密方案。该方案的同态操作简单，而且给出的平凡门操作使得电路层结构更清晰。最后利用自举技术作为优化提升了方案的同态运算能力。
기우Kristin Lauter등인적somewhat동태방안，제출“대밀약전환적중선성화기술”。결합해기술여“모전환”，설계료일개기우RLWE적비자거적층차화전동태가밀방안。해방안적동태조작간단，이차급출적평범문조작사득전로층결구경청석。최후이용자거기술작위우화제승료방안적동태운산능력。
Based on the somewhat homomorphic scheme of Kristin Lauter et al. a new technique, called Relinearization with key switching was presented. Combining this technique with modulus switching, a (leveled) fully homomorphic en-cryption scheme without bootstrapping from RLWE were designed. Homomorphic operations of this scheme is simple, and trivial gate operation given in the scheme can make level structure of circuit clearer. Finally, bootstrapping was used as optimization to evaluate capability of the proposed scheme.