- 专利标题： Semiconductor device including encryption section, semiconductor device including external interface, and content reproduction method
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申请号： US13091882申请日： 2011-04-21
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公开(公告)号： US08407488B2公开(公告)日： 2013-03-26
- 发明人: Makoto Fujiwara , Yusuke Nemoto , Junichi Yasui , Takuji Maeda , Takayuki Ito , Yasushi Yamada , Shinji Inoue
- 申请人： Makoto Fujiwara , Yusuke Nemoto , Junichi Yasui , Takuji Maeda , Takayuki Ito , Yasushi Yamada , Shinji Inoue
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2002-258481 20020904
- 主分类号： G06F12/14
- IPC分类号： G06F12/14 ; H04L9/00
摘要：
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.