Information security – Access control or authentication – Network
Reexamination Certificate
2006-12-12
2006-12-12
Louis-Jacques, Jacques (Department: 2134)
Information security
Access control or authentication
Network
C705S066000
Reexamination Certificate
active
07150039
ABSTRACT:
The invention provides an information processing system, a portable electronic device, an access apparatus for the portable electronic device, as well as a method of using a memory space. When applied to, for example, a system employing non-contact IC cards, the invention enables one IC card to be used for a plurality of business organizations in common. To this end, an access key is created based on issuer key information managed by a management sector and file key information specific to each business organization, and the created access key is signed to the business organization. A portable electronic device is then accessed using the access key.
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Kusakabe Susumu
Sasaki Masachika
Takada Masayuki
Bell Boyd & Lloyd LLC
Louis-Jacques Jacques
Simitoski Michael J.
Sony Corporation
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