公开(公告)号：US20160119120A1

公开(公告)日：2016-04-28

申请号：US14985942

申请日：2015-12-31

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Baocang Wang ,  Hao Lei ,  Yupu Hu

IPC: H04L9/06 ,  H04L9/30 ,  H04L9/14

CPC classification number: H04L9/0618 ,  H04L9/3093

Abstract: A method and an apparatus for public-key encrypted communication includes: encrypting, by a first device, random information according to a first public key to obtain a first ciphertext; encrypting, by the first device, plaintext information according to a second public key to obtain a second ciphertext, where the plaintext information is unencrypted data to be sent by the first device to a second device, the first public key is represented in a form of a polynomial, the first public key is obtained through calculation on a truncated polynomial ring according to system parameters, the second public key is represented in a form of a polynomial, the second public key is randomly selected on a truncated polynomial ring, and the random information is randomly selected on a truncated polynomial ring; and sending, by the first device, the first ciphertext and the second ciphertext to the second device.

Abstract translation: 一种用于公开密钥加密通信的方法和装置包括：通过第一设备根据第一公钥加密随机信息以获得第一密文; 由第一设备根据第二公钥加密明文信息以获得第二密文，其中明文信息是由第一设备发送到第二设备的未加密数据，第一公钥以 多项式，通过根据系统参数对截断的多项式环进行计算获得第一公钥，第二公钥以多项式的形式表示，第二公钥在截断多项式环上随机选择，随机选择随机 在截断的多项式环上随机选择信息; 以及由所述第一设备将所述第一密文和所述第二密文发送到所述第二设备。