- 专利标题： Block cipher apparatus using auxiliary transformation
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申请号： US11260110申请日： 2005-10-28
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公开(公告)号： US07760870B2公开(公告)日： 2010-07-20
- 发明人: Mitsuru Matsui , Toshio Tokita , Junko Nakajima , Masayuki Kanda , Shiho Moriai , Kazumaro Aoki
- 申请人： Mitsuru Matsui , Toshio Tokita , Junko Nakajima , Masayuki Kanda , Shiho Moriai , Kazumaro Aoki
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha,Nippon Telegraph and Telephone Corporation
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha,Nippon Telegraph and Telephone Corporation
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2000-064614 20000309
- 主分类号： H04L9/06
- IPC分类号： H04L9/06 ; H04L9/18
摘要：
It is desired to share one circuit by an encryption unit 200 and a decryption unit 500. A normal data transformation unit (FL) 251 and an inverse data transformation unit (FL−1) 273 are located at point symmetry on a non-linear data transformation unit 220, and a normal data transformation unit (FL) 253 and an inverse data transformation unit (FL−1) 271 are located at point symmetry on the non-linear data transformation unit 220. Therefore, the encryption unit 200 and the decryption unit 500 can be configured using the same circuits.
公开/授权文献
- US20060050872A1 Block cipher apparatus using auxiliary transformation 公开/授权日：2006-03-09
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