Cryptography – Key management
Reexamination Certificate
2011-08-09
2011-08-09
Lim, Krisna (Department: 2453)
Cryptography
Key management
C380S278000, C380S279000, C380S280000, C380S281000, C380S282000, C380S283000, C380S284000, C380S285000, C380S228000, C380S229000
Reexamination Certificate
active
07995761
ABSTRACT:
A data providing system is provided which includes: a storage section which stores an encoded file obtained by encoding a data file to be distributed with a predetermined common key and an encoded information file obtained by encoding an information data file including information on the common key with a private key different from the common key; and a file transfer section which transfers the encoded file and the encoded information file from the storage section to external electronic device.
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Kawai Takanao
Yoshimura Sachiko
Hespos Gerald E.
Kyocera Mita Corporation
Lim Krisna
Porco Michael J.
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