Title:
ENCRYPTION PROCESSING DEVICE, AUTHENTICATION METHOD AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2012/131926
Kind Code:
A1
Abstract:
An encryption processing device according to the present invention is configured to include a randomizing circuit for randomizing n keys respectively comprised of K1, K2, …, and Kn bits by a random number, a compressing circuit for outputting a compressed key compressed and obtained by generating one key from said randomized n keys, and an encrypting circuit for encrypting an input data using said compressed key.
Inventors:
ITOH KOUICHI (JP)
YAMAMOTO DAI (JP)
FURUKAWA KAZUYOSHI (JP)
TAKENAKA MASAHIKO (JP)
YAMAMOTO DAI (JP)
FURUKAWA KAZUYOSHI (JP)
TAKENAKA MASAHIKO (JP)
Application Number:
PCT/JP2011/057917
Publication Date:
October 04, 2012
Filing Date:
March 29, 2011
Export Citation:
Assignee:
FUJITSU LTD (JP)
ITOH KOUICHI (JP)
YAMAMOTO DAI (JP)
FURUKAWA KAZUYOSHI (JP)
TAKENAKA MASAHIKO (JP)
ITOH KOUICHI (JP)
YAMAMOTO DAI (JP)
FURUKAWA KAZUYOSHI (JP)
TAKENAKA MASAHIKO (JP)
International Classes:
H04L9/10; H04L9/32
Domestic Patent References:
| WO2009122464A1 | 2009-10-08 |
Foreign References:
| JP2008131108A | 2008-06-05 | |||
| JP2008233683A | 2008-10-02 | |||
| JP2007173999A | 2007-07-05 |
Attorney, Agent or Firm:
OSUGA, Yoshiyuki (JP)
Yoshiyuki Osuge (JP)
Yoshiyuki Osuge (JP)
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