Title:
COMMAND GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/010508
Kind Code:
A1
Abstract:
A tamper preventing process generation device (110) generates a program capable
of surely protecting a code to be protected. The device (110) generates an output
process command group (160) to be executed by an execution process device (130)
in order to protect a first process command group (140) causing the execution
process device (130) to substitute a value into a variable to be substituted.
The device (110) includes: a branch process command group generation unit (203)
for generating a branch process command group (320) for branching the process
route into a first process command group (140) as a part of an output process command
group (160) so that the execution process device (130) executes the first process
command groups (140); and a dependence process command group generation unit
(201) for generating a dependence process command group (330) causing the execution
process device (130) to execute a process depending on the value of the variable
to be substituted indicating the result of the first process command group (140)
executed by the execution process device (130) according to the branch process
command group (320), as a part of the output process command group (160).
Inventors:
SATO TAICHI
ASAI RIEKO
ASAI RIEKO
Application Number:
PCT/JP2007/064156
Publication Date:
January 24, 2008
Filing Date:
July 18, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
SATO TAICHI
ASAI RIEKO
SATO TAICHI
ASAI RIEKO
International Classes:
G06F21/54
Domestic Patent References:
| WO2006009081A1 | 2006-01-26 |
Foreign References:
| JP2006164184A | 2006-06-22 | |||
| JP2005166070A | 2005-06-23 |
Attorney, Agent or Firm:
NII, Hiromori (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10, Nishi Nakajima 5-chome, Yodogawa-k, Osaka-city Osaka 11, JP)
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