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SC2000 is a 128-bit block cipher with a user key of 128, 192 or 256 bits, which employs a total of 6.5 rounds for a 128-bit user key, and a total of 7.5 rounds for a 192 or 256-bit key. It was designed to "Have high performance on a wide range of platforms from the low-end processors used in smart cards and mobile phones to the high-end ones that will be available in the near future by suitably implementing it in each platform, and also to have high security". In 2002, SC2000 became a CRYPTREC recommended e-government cipher, after a thorough analysis of its security and performance.
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