Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
Reexamination Certificate
2004-03-31
2008-09-02
Sheikh, Ayaz (Department: 2131)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Central trusted authority provides computer authentication
C713S158000, C713S168000, C713S169000, C713S170000, C713S175000, C726S010000
Reexamination Certificate
active
07421577
ABSTRACT:
The present invention provides a means for reflecting modifications made in a server to data with regard to a scope of rights, which are granted to an application program operable in a communication device such as a mobile station, on data stored in the communication device. To achieve the aim, in a system according to the present invention, Java-AP software is provided to a mobile station by transmitting an ADF, a SDF and a JAR file from servers to the mobile station in that order. The SDF is a file containing data indicating restrictions of behavior of a Java-AP in a mobile station. The SDF also contains data indicating a validity state of the SDF, namely ‘valid’ or ‘invalid’, which is managed by management server device18. Before a mobile station runs a Java-APP which is installed in the mobile station, the mobile station accesses management server device18and checks whether a SDF corresponding to the Java-APP is valid. When the SDF is valid, the mobile station runs the Java-APP following the restrictions indicated in the SDF.
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Asai Mao
Hattori Yasunori
Ichikawa Yuichi
Kamiya Dai
Murakami Keiichi
Brinks Hofer Gilson & Lione
Chen Shin-Hon
NTT DoCoMo Inc.
Sheikh Ayaz
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