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Encryption device and encryption operation method

A technology of encryption device and operation method, applied in the direction of encryption device with shift register/memory, multi-programming device, secure communication device, etc., to achieve the effect of reducing packet processing delay

Inactive Publication Date: 2009-09-30
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In this patent document 1, for encryption requests from various applications, the utilization time of encryption resources as encryption engines for each application is limited.

Method used

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  • Encryption device and encryption operation method
  • Encryption device and encryption operation method
  • Encryption device and encryption operation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0056] figure 1 It is a diagram showing a communication system including a mobile communication terminal including the decryption device of the present invention.

[0057] First, the communication system 1 including the mobile terminal 100 will be described.

[0058] In the communication system 1, the mobile terminal 100 is connected to a home communication network (Home Network) 20, an enterprise communication network (Enterprise Network) 30, a media server 44, other mobile communication terminals 54, a web server 62 and File Transfer Server 72 .

[0059] In the communication system 1, the mobile terminal 100 with the IP network protocol stack is used for various network applications, namely network audio and video stream IP (AVoIP: audio / vedio stream over IP), IP phone (VoIP: voice over IP), It is connected to the Internet 10 for web browsing (access netw...

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PUM

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Abstract

Provided is an encryption device which can effectively use a hardware encryption engine and reduce a packet processing delay of a real time application. In this device, an approval unit (230) judges whether it is possible to use an HW encryption unit (264) corresponding to a secure application requested for encryption operation, i.e., whether an encryption resource is not used. A priority processing approval unit (240) calculates a priority of an encryption operation in the secure application of the request source. If the HW encryption unit (264) cannot be used, the priority of a secure application currently allocated to the HW encryptionunit (264) is compared to that of the secure application requesting for the encryption operation. If the secure application of the request source has a higher priority, the currently allocated secure application is released from the HW encryption unit and the secure application of the request source is allocated to the HW encryption unit (264). The secure application which has been released is allocated to an SW encryption unit (266).

Description

technical field [0001] The present invention relates to an encryption device or an encryption operation method that appropriately processes encryption requests and decryption requests from a plurality of applications. Background technique [0002] In recent years, the following mobile terminals and systems have been studied, by installing a WLAN (Wireless Local Area Network) function capable of high-speed data communication in a narrow area on a mobile terminal capable of communicating in a wide area Or bluetooth (bluetooth) function to improve the communication, so that the communication function can be used separately according to the purpose of various applications. [0003] With the diversification of such communication technologies and applications, it is required to ensure security while maintaining high-speed packet transmission in the network. Networks represented by IPSEC (Security Architecture for IP network: IP layer protocol security structure) The standardizati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/10G09C1/00G06F9/48
CPCH04L2209/80H04L9/00H04L9/0844H04L9/06H04L2209/12
Inventor 千贺谕刘学灯
Owner PANASONIC CORP