Cryptography – Key management – Having particular key generator
Reexamination Certificate
2004-11-18
2008-11-18
Song, Hosuk (Department: 2135)
Cryptography
Key management
Having particular key generator
C713S174000
Reexamination Certificate
active
07454017
ABSTRACT:
An object of the present invention is to a provide tamper resistant information processing unit that is used as an IC card with a high level of security.To achieve the above-mentioned object, the information unit of the present invention comprises: a program container part for storing a program; a memory for storing data; an arithmetic unit for performing specified processing according to the program; a data bus for connecting the memory to the arithmetic unit; and a transform function for transforming a logical address and a physical address of the memory, said logical address being used for arithmetic operation by the arithmetic unit, said physical address being set at random corresponding to the logical address at each arithmetic operation or every time the information processing unit is started up.
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Endo Takashi
Kaminaga Masahiro
Watanabe Takashi
Antonelli, Terry Stout & Kraus, LLP.
Renesas Technology Corp.
Song Hosuk
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