Invention Grant
- Patent Title: Semiconductor device including encryption section, semiconductor device including external interface, and content reproduction method
- Patent Title (中): 包括加密部分的半导体器件，包括外部接口的半导体器件和内容再现方法
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Application No.: US12877615Application Date: 2010-09-08
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Publication No.: US08122262B2Publication Date: 2012-02-21
- Inventor: Makoto Fujiwara , Yusuke Nemoto , Junichi Yasui , Takuji Maeda , Takayuki Ito , Yasushi Yamada , Shinji Inoue
- Applicant: Makoto Fujiwara , Yusuke Nemoto , Junichi Yasui , Takuji Maeda , Takayuki Ito , Yasushi Yamada , Shinji Inoue
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2002-258481 20020904
- Main IPC: G06F12/14
- IPC: G06F12/14
Abstract:
A secure LSI device 1 includes an encryption section 2 for encrypting a program, and an external I/F 50 for inputting/outputting a program or data from/to an external memory 100. In the encryption section 2, the operation of a private key arithmetic processing section 20 is prohibited with respect to a sequence whose execution is determined by a key-generation/update sequencer 30 to be impermissible. In the external I/F 50, a program processing section 51 and a data processing section 55 are structured independently from each other.
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