公开(公告)号：US20140286486A1

公开(公告)日：2014-09-25

申请号：US13943188

申请日：2013-07-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwang LEE ,  Doo Ho CHOI ,  Taesung KIM ,  Yong-Je CHOI ,  Kyunghee OH ,  Ju Han KIM

IPC: H04L9/14

CPC classification number: H04L9/003 ,  H04L9/0631 ,  H04L2209/08 ,  H04L2209/125

Abstract: In accordance with an embodiment, the logical exclusive operation on the random number RAND and the OPc value are performed several times, the logical operation and encryption processing using a random number RAND and logical operation and encryption processing using a random number S are done in any order, which brings an increase of an attack complexity as to whether to calculate the correlation coefficient from the power consumption waveform at any point when analyzing the correlation power, whereby it is possible to defend the CPA attack effectively.

Abstract translation: 根据一个实施例，执行对随机数RAND和OPc值的逻辑排序操作多次，使用随机数RAND的逻辑运算和加密处理以及使用随机数S的逻辑运算和加密处理在任何 在分析相关功率时，在任何时候能够从功耗波形计算相关系数是否能够提高攻击复杂度，从而有可能有效地保护CPA攻击。

公开(公告)号：US20150349948A1

公开(公告)日：2015-12-03

申请号：US14682632

申请日：2015-04-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ju Han KIM ,  Doo Ho CHOI ,  Yong Je CHOI

IPC: H04L9/00

CPC classification number: H04L9/003 ,  G09C1/00 ,  H04L2209/12

Abstract: Disclosed are a side channel analysis system that may facilitate to perform side channel analysis on a device whose dedicated side channel analysis board does not exist such as a smartphone, and a side channel analysis method using the same. The side channel analysis system includes a side channel analysis device that outputs control signals for side channel analysis and performs side channel analysis based on received measurement signals, a device to be analyzed that performs generation and encryption function of optical signals for side channel measurement, according to the control signals provided from the side channel analysis device, an optical sensor module that detects the optical signals generated from the device to be analyzed, and generates and outputs trigger signals according to the detected optical signals, and a signal measurement device that measures waveforms of at least one signal generated according to an encryption operation of the device to be analyzed using the trigger signals output from the optical sensor module, and provides the measured waveforms to the side channel analysis device.

Abstract translation: 公开了一种侧信道分析系统，其可以有助于在诸如智能电话之类的不存在专用侧信道分析板的设备上进行侧信道分析，以及使用该侧信道分析方法。 侧信道分析系统包括侧信道分析装置，其输出用于侧信道分析的控制信号，并且基于接收到的测量信号进行侧信道分析，对要进行侧信道测量的光信号执行生成和加密功能的分析装置，根据 涉及从侧信道分析装置提供的控制信号，检测从被分析装置产生的光信号的光传感器模块，并根据所检测的光信号产生并输出触发信号;以及信号测量装置，其测量波形 使用从光学传感器模块输出的触发信号根据要分析的装置的加密操作产生的至少一个信号，并将测量的波形提供给侧信道分析装置。

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：US20130325382A1

公开(公告)日：2013-12-05

申请号：US13734695

申请日：2013-01-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ju Han KIM ,  Kyunghee OH ,  Doo Ho CHOI ,  Taesung KIM ,  Yong-Je CHOI ,  Seung Kwang LEE

IPC: G01R13/00 ,  G06F17/00

CPC classification number: G01R13/00 ,  G01R13/029 ,  G06F17/00 ,  H04L9/002

Abstract: A side channel analysis apparatus based on a profile includes a waveform collection unit configured to collect leaked information from a target device of a side channel analysis; and a preprocessing unit configured to preprocess a waveform data correspond to the leaked information collected from the waveform collection unit before analyzing same. Further, the side channel analysis apparatus includes an analysis unit configured to analyze the waveform data preprocessed in the preprocessing unit; and a profile configuration unit configured to make each process of the waveform collection unit, the preprocessing unit, and the analysis unit into a process and configure a profile for managing each process by connection of each process.

Abstract translation: 基于简档的侧信道分析装置包括：波形收集单元，被配置为从侧信道分析的目标设备收集泄漏的信息; 以及预处理单元，被配置为在分析波形数据之前对与从波形采集单元收集的泄露信息相对应的波形数据进行预处理。 此外，侧信道分析装置包括分析单元，被配置为分析预处理单元中预处理的波形数据; 以及简档配置单元，被配置为使波形收集单元，预处理单元和分析单元的每个处理成为处理，并且通过连接每个处理来配置用于管理每个处理的简档。

公开(公告)号：US20180287779A1

公开(公告)日：2018-10-04

申请号：US15940957

申请日：2018-03-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Kwang LEE ,  Yousung KANG ,  Ju Han KIM ,  Taesung KIM

IPC: H04L9/00 ,  H04L9/08

Abstract: Provided is a white-box cryptography method and apparatus for preventing side channel analysis. An input plain text is encrypted and output according to white-box cryptography and, in this case, the value output according to the encryption includes a first value corresponding to a value obtained by masking an intermediate value obtained by encrypting the plain text with a mask and a second value corresponding to the mask.

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：US20150215117A1

公开(公告)日：2015-07-30

申请号：US14608878

申请日：2015-01-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ju Han KIM ,  Seung Kwang LEE ,  Doo Ho CHOI

IPC: H04L9/08

CPC classification number: H04L9/0631 ,  G09C1/00 ,  H04L2209/16

Abstract: Disclosed are a white box encryption apparatus and method. The white box encryption method includes performing an encryption operation using a plurality of white box encryption tables for each of a plurality of rounds, and mixing arrangement of result tables output for each round.

Abstract translation: 公开了一种白盒加密装置和方法。 白盒加密方法包括对多个轮次中的每一个执行多个白盒加密表的加密操作，以及每轮输出的结果表的混合排列。