KCipher-2
| General | |
|---|---|
| Designers |
|
| First published | 2007[2] |
| Certification | CRYPTREC[3] |
| Cipher detail | |
| Key sizes | 128 bits[2] |
| State size | 640 bits[2] |
KCipher-2 is a stream cipher jointly developed by Kyushu University and Japanese telecommunications company KDDI.[4] It is standardized as ISO/IEC 18033–4,[5] and is on the list of recommended ciphers published by the Japanese Cryptography Research and Evaluation Committees (CRYPTREC).[6] It has a key length of 128 bits, and can encrypt and decrypt around seven to ten times faster than the Advanced Encryption Standard (AES) algorithm.[4]
Notes
- ^ "Product Outline｜KCipher-2 | KDDI Research". www.kddi-research.jp. Archived from the original on 2026-01-22. Retrieved 2026-01-22.
- ^ a b c Kiyomoto, S.; Shin, W. (August 2013). A Description of the KCipher-2 Encryption Algorithm. IETF. doi:10.17487/RFC7008. RFC 7008.
- ^ "CRYPTRECの電子政府推奨暗号、国産の「Camellia」や「KCipher-2」などリスト入り | 日経クロステック（xTECH）". 日経クロステック（xTECH） (in Japanese). 2013-03-26. Archived from the original on 2026-01-22. Retrieved 2026-01-22.
- ^ a b Seto & Saitō 2019, p. 231.
- ^ Hidaka 2012.
- ^ Seto & Saitō 2019, p. 234.
References
- Seto, Mitsuki; Saitō, Ken'ichi (2019). Tettei Kōryaku: Jōhō Shori Anzen Kakuho Shienshi Kyōkasho [Comprehensive Strategy: Registered Information Security Specialist Textbook] (in Japanese) (2020 ed.). Impress.
- Hidaka, Akira (17 February 2012). "Hayai, Karui, Namae no Yurai ga Omoshiroi? Mobairu Kiki ni Tekishita Angōka Gijutsu "KCipher-2" to wa?" [Fast, Light, a Name with an Interesting Origin? About "KCipher-2", an Encryption Algorithm Suited for Mobile Devices] (in Japanese). IT Media. Retrieved 2 October 2020.