发明授权
- 专利标题： Data conversion function processor
- 专利标题（中）： 数据转换功能处理器
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申请号： US12834247申请日： 2010-07-12
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公开(公告)号： US08295479B2公开(公告)日： 2012-10-23
- 发明人: Dai Yamamoto , Jun Yajima , Kouichi Itoh
- 申请人： Dai Yamamoto , Jun Yajima , Kouichi Itoh
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Staas & Halsey LLP
- 主分类号： H04L9/06
- IPC分类号： H04L9/06
摘要：
In a MISTY1 FI function, an exclusive OR to which a round key KIij2 is inputted is arranged between an exclusive OR arranged on a 9-bit critical path in a first MISTY structure and a zero-extend conversion connected to the branching point of a 7-bit right system data path. Then, a 9-bit round key KIij1 is truncate-converted to seven bits, the exclusive OR of the seven bits and the round key KIij1 is calculated by an exclusive OR and the calculation result is inputted to an exclusive OR arranged on the right system data path in the second stage MISTY structure.
公开/授权文献
- US20100278332A1 DATA CONVERSION FUNCTION PROCESSOR 公开/授权日：2010-11-04
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