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Method of authentication at time of update of software embedded in information terminal, system for same and program for same

A technology for information terminal and software update, applied in the direction of program/content distribution protection, instrument, electronic digital data processing, etc., can solve the problem of reducing network load and achieve the effect of preventing downloading

Active Publication Date: 2014-12-17
NEC PLATFORMS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it is possible to reduce the network load to the server

Method used

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  • Method of authentication at time of update of software embedded in information terminal, system for same and program for same
  • Method of authentication at time of update of software embedded in information terminal, system for same and program for same
  • Method of authentication at time of update of software embedded in information terminal, system for same and program for same

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Experimental program
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Effect test

Embodiment Construction

[0065] First, an overview of an embodiment of the present invention will be described. According to the embodiment of the present invention, generally, the following first to fifth means are used to execute the software update method of the information terminal in order to ensure security.

[0066] First means: The task of the authentication server is performed by another information terminal or an equivalent device.

[0067] Second means: Use near-field radio communication such as Bluetooth (registered trademark) as a communication unit for authentication.

[0068] Third means: The information terminal side determines whether the download server is appropriate.

[0069] The fourth method: identifying whether the application has been tampered with.

[0070] Fifth means: use a time-limited encryption key with a specific expiration time.

[0071] Next, configurations of embodiments of the present invention will be described in detail with reference to the drawings.

[0072] ...

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PUM

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Abstract

A load on a server or a network is suppressed at a minimum, the authentication server is not necessary, and download of falsified software is prevented. A server creates a time-limited authentication key, computes a hash value of a file included in update software for each file to create a hash table in which hash values of a file are listed, and encrypts the hash table using the authentication key. A unit obtains the encrypted hash table and the authentication key from a server. An information terminal obtains the encrypted hash table from the unit, obtains the authentication key from the unit, determines whether or not a time limit of the authentication key is valid, obtains the encrypted hash table from the server if the time limit is determined to be valid as a result of the determination, decrypts the tables using the authentication key, compares the tables after decryption, and initiates download of the update software if both the tables are identical to each other.

Description

technical field [0001] The present invention relates to a method for ensuring security when software embedded in an information terminal is updated. Background technique [0002] Various techniques are employed to update software embedded in the information terminal. However, a technique of downloading or delivering update software from a server through a network is generally used. In this technique, since the update software is uploaded on the server, and the information terminal downloads the update software from the server for update, there is no need to directly perform software update on a plurality of information terminals. This advantageously reduces the workload. In addition, security can be enhanced by providing a server for authentication to authenticate whether the information terminal is suitable for downloading and to allow downloading after authentication between the information terminal and the server. In particular, for information terminals in which secur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/12G06F21/51G06F21/57G06F21/14G06F21/60G06F21/64
CPCG06F21/57G06F21/51G06F2221/2137G06F21/123
Inventor 平林靖
Owner NEC PLATFORMS LTD