公开(公告)号：US20150324302A1

公开(公告)日：2015-11-12

申请号：US14709999

申请日：2015-05-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwang LEE ,  Doo Ho CHOI ,  Tae Sung KIM ,  Kyung Hee OH ,  Yong Je CHOI ,  Ju Han KIM ,  You Sung KANG

IPC: G06F12/14 ,  H04L9/08

CPC classification number: H04L9/08 ,  G06F12/1408 ,  G06F2212/1052 ,  H04L9/002 ,  H04L9/0847 ,  H04L9/085 ,  H04L2209/24

Abstract: A white box encryption device is provided. The device included in a second device among a first device and the second device performing wired or wireless communication, and performing an encryption/decryption operation using a white box encryption table consisting of a look-up table set, includes, a non-volatile memory configured to store an incomplete look-up table set in which at least one look-up table or a portion of entire look-up table is removed, a volatile memory configured to store the incomplete look-up table set received from the non-volatile memory and the at least one look-up table received from the first device at a time of the encryption/decryption operation, and construct a complete look-up table set, and an encryption/decryption operation unit configured to perform the encryption/decryption operation using the complete look-up table set.

Abstract translation: 提供了一个白盒加密设备。 包括在第一设备中的第二设备中的设备和执行有线或无线通信的第二设备，以及使用由查找表组成的白盒加密表执行加密/解密操作的设备包括：非易失性存储器 被配置为存储不完整的查找表集合，其中至少一个查找表或整个查找表的一部分被去除;易失性存储器，被配置为存储从非易失性接收的不完整查找表集合 存储器和在加密/解密操作时从第一设备接收的至少一个查找表，并构建完整的查找表集合;以及加密/解密操作单元，被配置为执行加密/解密操作 使用完整的查找表集合。

公开(公告)号：US20170244677A1

公开(公告)日：2017-08-24

申请号：US15214309

申请日：2016-07-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Hancom Secure Inc.

Inventor： Seung Kwang LEE ,  You Sung KANG ,  Ju Han KIM ,  Tae Sung KIM ,  Doo Ho CHOI ,  Geon Woo KIM ,  Soo Hyung KIM ,  Hyun Sook CHO ,  Seung Hun JIN

IPC: H04L29/06 ,  H04L9/08

CPC classification number: H04L9/0816 ,  H04L9/002 ,  H04L2209/16 ,  H04L2209/34

Abstract: Provided are an operation method and a secure terminal for performing the method. The operation method may include receiving, from a user terminal, a plain text on which an external encoding operation is to be performed, performing the external encoding operation on the plain text, and transmitting the external encoding operated plain text to the user terminal, and the operation method may include receiving, from a user terminal, a cryptogram in which a white-box cryptography operation is performed on an external encoding operated plain text; performing an external decoding operation on the cryptogram; and transmitting the external decoding operated cryptogram to the user terminal.

公开(公告)号：US20150312027A1

公开(公告)日：2015-10-29

申请号：US14680320

申请日：2015-04-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Sung KIM ,  Doo Ho CHOI

IPC: H04L9/00

CPC classification number: H04L9/002 ,  H04L9/003 ,  H04L2209/04 ,  H04L2209/16 ,  H04L2209/24

Abstract: Disclosed is a function masking apparatus in a symmetric cryptographic algorithm for preventing side channel attacks, including: a controller creating lookup tables for one or more internal functions included in a high security and light weight (HIGHT) algorithm, respectively based on a plurality of non-linear functions, a plurality of linear functions, and a plurality of constants which are randomly generated; and a storage unit storing the lookup tables for one or more internal functions included in the generated HIGHT algorithm.

Abstract translation: 公开了一种用于防止侧信道攻击的对称加密算法中的功能掩蔽装置，包括：控制器分别基于多个非信道发现，为包括在高安全性和轻重量（HIGHT）算法中的一个或多个内部功能创建查找表， 线性函数，多个线性函数和多个随机生成的常数; 以及存储单元，存储所生成的HIGHT算法中包括的一个或多个内部功能的查找表。