Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2004-12-02
2010-02-23
Kim, Jung (Department: 2432)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C726S028000, C726S029000, C358S001140, C358S001160
Reexamination Certificate
active
07669060
ABSTRACT:
In a data processing apparatus which performs an output process and a protection process on data stored in a data storage section, and executes user verification when verification data to be used in verification at a time of accepting setting about the protection process is stored in a verification data storage section, execution of a data protection process is permitted or inhibited according to whether the verification data is stored in the verification data storage section or not. As the protection process is executed when user verification is carried out, the security on data protection is kept at a high level.
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Fujiwara Katsuyoshi
Okamoto Yuji
Ueda Naofumi
Yoshiura Syouichirou
Birch & Stewart Kolasch & Birch, LLP
Kim Jung
Okeke Izunna
Sharp Kabushiki Kaisha
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