Won Grand Prize at 2018 National Cryptographic Competition

Two students from Graduate School of Information Security of School of Computing, KAIST, Choi Won-seok in Ph.d course and Lee Byeong-hak in master’s course(Advisor Professor Lee Ju-young) , won the grand prize for thesis “Indifferentiability of Truncated Random Permutations” at the 2018 National Cryptography Competition.

The 2018 National Cryptographic Competition was held by the Korea Cryptographic Forum, Korea Institute of Information Security & Cryptology and and National Research Council of Science & Technology under the auspices of the National Intelligence Service to develop the nation's encryption technology.

The total prize money is about 50 million won including the 10 million for the grand prize. Cryptographic Competition is divided into areas such as cryptography thesis, solving problems of cryptography, and ideas for using cryptography, and the grand prize is chosen only from the cryptography thesis area. The award ceremony was held at Ramada Seoul Hotel on November 15 as an additional event for the Future Password Workshop.

In addition, Kim Sung-kwang in Ph.d course (Advisor Professor Lee Ju-young) received an incentive award in cryptography thesis section, and Kim Sung-kwang and Choi Won-suk in Ph.d course, and Lee Young-min in master’s course (Advisor Professor Lee Ju-young) received a special award.Two teams of undergraduates of KAIST hacking club GoN, led by Cha Sang-gil from Graduate School of Information Security, received the highest award and the incentive prize respectively in the problem-solving field.

Meanwhile, Lee Ji-eun, a Ph.D. student in School of Computing, won the top prize at the National Cipher Skills Specialist Training Awards, and Lee Byeong-hak, a master's course student, won the excellence prize. Lee Byung-hak also won the top prize at the 2017 Cryptography Contest for his paper, "Tweakable Block Cippers Secure Beyond the Birtday Bound in the Ideal Cipher Model," which was adopted by the three major cryptographic societies Asiacrypt, this year.