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| General | |
|---|---|
| First published | 2003 |
| Derived from | AES |
| Certification | South Korean standard |
| Cipher detail | |
| Key sizes | 128, 192, or 256 bits |
| Block sizes | 128 bits |
| Structure | Substitution–permutation network |
| Rounds | 12, 14, or 16 |
| Best public cryptanalysis | |
| Meet-in-the-middle attack on 8 rounds with data complexity 2 | |
In cryptography, ARIA is a block cipher designed in 2003 by a large group of South Korean researchers. In 2004, the Korean Agency for Technology and Standards selected it as a standard cryptographic technique.
The algorithm uses a substitution–permutation network structure based on AES. The interface is the same as AES: 128-bit block size with key size of 128, 192, or 256 bits. The number of rounds is 12, 14, or 16, depending on the key size. ARIA uses two 8×8-bit S-boxes and their inverses in alternate rounds; one of these is the Rijndael S-box.
The key schedule processes the key using a 3-round 256-bit Feistel cipher, with the binary expansion of 1/π as a source of "nothing up my sleeve numbers".
Implementations
The reference source code of ARIA cipher implemented in C, C++, and Java can be downloaded from KISA's cryptography use activation webpage.
Standardization
Security
- A. Biryukov; C. De Cannière; J. Lano; B. Preneel; S. B. Örs (January 7, 2004). Security and Performance Analysis of ARIA (PDF) (Report). Version 1.2—Final Report. Katholieke Universiteit Leuven. Retrieved 2024-05-28.
- Wenling Wu; Wentao Zhang; Dengguo Feng (2006). "Impossible Differential Cryptanalysis of ARIA and Camellia". Cryptology ePrint Archive. Retrieved January 19, 2007.
- Xuehai Tang; Bing Sun; Ruilin Li; Chao Li (March 30, 2010). "A Meet-in-the-Middle Attack on ARIA". Cryptology ePrint Archive. Retrieved April 24, 2010.
References
- "KISA: Block Cipher: ARIA". seed.kisa.or.kr (in Korean).
- Kwon, Daesung; Kim, Jaesung; Park, Sangwoo; Sung, Soo Hak; Sohn, Yaekwon; Song, Jung Hwan; Yeom, Yongjin; Yoon, E-Joong; Lee, Sangjin; Lee, Jaewon; Chee, Seongtaek; Han, Daewan; Hong, Jin (2003). "New Block Cipher: ARIA". Information Security and Cryptology - ICISC 2003. Lecture Notes in Computer Science. Vol. 2971. Springer International Publishing. pp. 432–445. doi:10.1007/978-3-540-24691-6_32. ISBN 978-3-540-24691-6.
- "KISA: Cryptographic algorithm source code: ARIA". seed.kisa.or.kr (in Korean).
