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Method of verifying downloaded software and corresponding device

A device and software technology, applied in the field of download verification, which can solve problems such as increasing overhead

Inactive Publication Date: 2013-03-06
MOTOROLA MOBILITY LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this adds overhead

Method used

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  • Method of verifying downloaded software and corresponding device
  • Method of verifying downloaded software and corresponding device
  • Method of verifying downloaded software and corresponding device

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Embodiment Construction

[0018] The invention is illustrated with reference to the use of RSA encryption techniques. The algorithm and principle of RSA encryption technology are well known, so this document will not describe them in detail. It will be apparent to those skilled in the art that other encryption techniques may be used in accordance with the present invention.

[0019] figure 1 Illustrated is a known file transfer verification process for verifying the correctness of a transferred file from a source to a receiver. The idea behind this process is that while file 1 is being transferred, a second piece of information about both file 1 and the source is also being transferred between the source and the recipient, this information ensures that the recipient confirms that the file came from the source. In addition, the receiver has or transmits the third piece of information to the receiver to ensure that the receiver confirms that the source is trustworthy, so that the downloaded file can be...

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Abstract

The invention relates to securing software downloaded to a device in which a smart card is used to store a security key and perform computations using the key. The result of the calculation using the smart card is transmitted to the device and compared with the calculation result performed by the device on the downloaded software to verify the downloaded software. The security of keys and computations involving secure keys is thus guaranteed. Preferably, the root security key stored in the smart card can be updated using a communication system message protocol.

Description

technical field [0001] The present invention relates to a method of verifying software downloaded from a source to a device and related devices. In particular, the invention relates to download verification in standardized execution environments such as Mobile Execution Environment (MExE) and Java. Background technique [0002] There is an increasing need to download software to portable devices over the air. This requires devices to be updated with the latest software releases or to allow new applications to be added to the device as they become available. [0003] The device needs to check the correctness of the downloaded software to decide whether, for example, it actually received the downloaded software from a trusted sender. Additionally, downloaded software needs to be restricted to designated regions to avoid violating other licenses on the device. [0004] Security can be ensured by keys stored securely on the device so that they can only be read or tampered wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/08H04W12/06H04W12/10H04L29/06H04W8/22
CPCH04L9/0891H04L9/0897H04L9/3234H04L9/3247H04L63/0823H04L63/0853H04L63/12H04L2209/80H04W8/22H04W12/06H04W12/10H04W12/35
Inventor 帕斯卡尔·德卢姆普拉迪普·加拉尼
Owner MOTOROLA MOBILITY LLC