Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2008-01-22
2010-11-09
Smithers, Matthew B (Department: 2437)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C726S031000
Reexamination Certificate
active
07831841
ABSTRACT:
A secure LSI device1includes an encryption section2for encrypting a program, and an external I/F50for inputting/outputting a program or data from/to an external memory100. In the encryption section2, the operation of a private key arithmetic processing section20is prohibited with respect to a sequence whose execution is determined by a key-generation/update sequencer30to be impermissible. In the external I/F50, a program processing section51and a data processing section55are structured independently from each other.
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Fujiwara Makoto
Inoue Shinji
Ito Takayuki
Maeda Takuji
Nemoto Yusuke
McDermott Will & Emery LLP
Panasonic Corporation
Smithers Matthew B
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