Kookmin University

Samsung Sds Co., Ltd.

Dong Guk Han

Tae Ho Lee

Kyu-Young Choi

Ji-Hoon Cho

Duk-Jae Moon

Hyo Jin Yoon

Joo Hee Lee

Ji Hoon Cho

Sang Yub Lee

Ji Hoon Kwon

Jae Won Huh

Bo Yeon Sim

Jong Hyeok Lee

Jae Geun Moon

Jae Seung Han

Il Ju Kim

Ae Sun Park

Han Sup Lim

Keon Hee Choi

Disclosed is a fault injection attack method including determining a trigger start point in time based on an input signal for a crypto device; determining a trigger end point in time based on an output signal of the crypto device; setting a trigger based on the trigger start point in time and the trigger end point in time; and performing a fault injection attack based on the set trigger.

Fault injection attack system

A method for preventing side-channel attack according to an embodiment includes generating an order table which includes a position index value for each bit value of a bit string that is secret information to be generated through a decryption algorithm of an NDegree Truncated Polynomial Ring Units (NTRU) LPRime algorithm, shuffling a sort order of the position index value for the each bit value in the order table based on a random number, determining a generation order for the each bit value according to the sort order of the position index value for the each bit value in the order table, and generating the secret information through the decryption algorithm. The secret information is generated by generating the each bit value according to the determined generation order.

Apparatus and method for preventing side channel attack for NTRU LPRime algorithm

A method for performing a matrix multiplication operation being secure against side-channel attacks according to one embodiment, which is performed by a computing device comprising one or more processors and a memory storing one or more programs to be executed by the one or more processors, includes shuffling an order of execution of multiplication operations between elements of a first matrix and elements of a second matrix for a matrix multiplication operation between the first matrix and the second matrix; and performing the matrix multiplication operation based on the shuffled order of execution.

Apparatus and method for performing matrix multiplication operation being secure against side channel attack

Growing community of inventors

Seoul, South Korea

Dong Guk Han