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Information processing apparatus, removable storage device, information processing method, and information processing system

A technology for mobile storage devices and information processing devices, which is applied in the fields of electrical digital data processing, computer security devices, instruments, etc., and can solve the problem of not confirming whether the storage media is different

Inactive Publication Date: 2012-07-04
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has not been confirmed whether the storage medium to which data is actually read or written is the storage medium contained in the above-mentioned trusted storage medium product
Thus, the storage capacity of the storage medium from which the host device actually reads or writes data may differ from the storage capacity of the storage medium contained within the certified storage medium product.

Method used

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  • Information processing apparatus, removable storage device, information processing method, and information processing system
  • Information processing apparatus, removable storage device, information processing method, and information processing system
  • Information processing apparatus, removable storage device, information processing method, and information processing system

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Embodiment Construction

[0025] Preferred embodiments will be described with reference to the accompanying drawings. In this specification and drawings, elements having substantially the same function are denoted by the same reference numerals, and repeated descriptions are omitted.

[0026] The embodiments will be described in the following order.

[0027] 1. Functional structure

[0028] 1-1. Functional structure of storage and usage system

[0029] 1-2. Functional structure of mobile storage device

[0030] 1-3. Functional structure of information processing device

[0031] 2. The hardware structure of the information processing device

[0032] 3. System operation

[0033] 3-1. The first operation example

[0034] 3-2. The second operation example

[0035] 4. Effect example

[0036] 1. Functional structure

[0037] 1-1. Functional structure of storage and usage system

[0038] First, refer to figure 1 A storage usage system 10 including a mobile storage device 100 and an information proc...

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Abstract

The invention relates to an information processing apparatus, a removable storage device, an information processing method, and an information processing system. The information processing apparatus includes an encrypted authentication unit that obtains, as encrypted information, the estimated total capacity of a storage medium included in a removable storage device, which is the target of encrypted authentication, a storage use unit that obtains the total capacity of a storage medium to which data is written, and a determination unit that restricts the use by the storage use unit of the storage medium to which the data is written depending on whether the difference between the estimated total capacity and the total capacity is equal to or more than a predetermined threshold. By comparing the storage capacity of the storage medium from and to which the data is read or written with the storage capacity of the storage medium of the authenticated storage medium product, the information processing apparatus is capable of restricting usage of the storage medium from and to which the data is read or written based on the comparision results.

Description

[0001] Cross References to Related Applications [0002] The present application contains subject matter related to the disclosure of Japanese Priority Patent Application JP 2010-268607 filed in the Japan Patent Office on Dec. 1, 2010, the entire content of which is hereby incorporated by reference. technical field [0003] The invention relates to an information processing device, a mobile storage device, an information processing method and an information processing system. Background technique [0004] With the development of information processing technology, digital data continues to grow. Among storage media for storing digital data, mobile storage devices are widely used because they are suitable for carrying digital data. [0005] For example, Japanese Unexamined Patent Publication No. 2006-085479 discloses some mobile storage devices, and some of these mobile storage devices obtain the following functions by using encrypted authentication between some storage devic...

Claims

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Application Information

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IPC IPC(8): G06F21/00G06F21/44
CPCG06F21/00G06F21/79
Inventor 海老原宗毅
Owner SONY CORP
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