Invention Grant
US08407452B2 Processor for performing encryption mask processing using randomly generated instructions and data
有权
用于使用随机生成的指令和数据进行加密掩码处理的处理器
- Patent Title: Processor for performing encryption mask processing using randomly generated instructions and data
- Patent Title (中): 用于使用随机生成的指令和数据进行加密掩码处理的处理器
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Application No.: US12382866Application Date: 2009-03-25
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Publication No.: US08407452B2Publication Date: 2013-03-26
- Inventor: Koichi Yoshimi
- Applicant: Koichi Yoshimi
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Priority: JP2008-171214 20080630
- Main IPC: G06F15/00
- IPC: G06F15/00 ; G06F21/00
Abstract:
An arithmetic processing apparatus includes an operation circuit group that performs encryption and a redundant operation circuit group configured the same as the operation circuit group. The arithmetic processing apparatus, while performing encryption, performs normal encryption in the operation circuit group, and performs an encryption mask processing program by using data and the like randomly generated by a random data generating unit and the like in the redundant operation circuit group. The arithmetic processing apparatus, when not performing encryption, performs normal arithmetic processing in the redundant operation circuit group.
Public/Granted literature
- US20090327664A1 Arithmetic processing apparatus Public/Granted day:2009-12-31
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