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A method and system for unloading data encryption and decryption based on powerpc and detachable storage device

A storage device, encryption and decryption technology, applied in the field of electronic warfare system embedded software, to achieve the effect of increasing complexity

Active Publication Date: 2022-05-24
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a method WDED (WorkState Distributed Encryption Decryption) and system based on PowerPC and detachable storage device unloading data encryption and decryption, so as to solve the technical problem of encryption and decryption security of unloading data in work state records in electronic warfare

Method used

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  • A method and system for unloading data encryption and decryption based on powerpc and detachable storage device
  • A method and system for unloading data encryption and decryption based on powerpc and detachable storage device

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Embodiment

[0030] The design principle of the present invention is as follows: the key is distributed, the encryption process is embedded, and the key of the unloadable storage device does not match the ciphertext;

[0031] Key distribution means that the keys are located in the PowerPC's memory, removable storage device, and key management machine;

[0032] The encryption process embedded means that PowerPC uses the memory key and the removable storage device key to synthesize the key and encrypt it;

[0033] The mismatch between the key of the removable storage device and the ciphertext means that after the removable storage device is obtained by the enemy, the key and the ciphertext cannot be cracked by an exhaustive method.

[0034] Based on the above principles, such as figure 1 As shown, this embodiment proposes a method for encrypting and decrypting offload data based on PowerPC and a removable storage device, including the following steps:

[0035] (1) PowerPC reads the key KEY...

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Abstract

The method and system for unloading data encryption and decryption based on PowerPC and detachable storage devices of the present invention solves the problem of working status records by utilizing the characteristics of distributed keys, embedded encryption process, and mismatch between keys and ciphertexts of detachable storage devices. Uninstallation and decryption security issues, while increasing the complexity of simple encryption and decryption software, so that the security of uninstallation and decryption of work status records can be guaranteed. Among them, key distribution means that the keys are respectively located in the PowerPC memory, detachable storage device, and key management machine; the encryption process embedded means that PowerPC uses the memory key and the detachable storage device key to synthesize the key and then encrypts; it can be uninstalled The mismatch between the key of the storage device and the ciphertext means that after the detachable storage device is obtained by the enemy, the key and ciphertext cannot be cracked by exhaustive method. And the present invention does not need to increase the hardware overhead, and it can be realized by only upgrading the corresponding software for multi-airborne items.

Description

technical field [0001] The invention relates to the field of embedded software of electronic warfare systems, in particular to a method and system for unloading data encryption and decryption based on PowerPC and a detachable storage device. Background technique [0002] With the rapid development of radar technology and the increasingly complex electromagnetic environment in space, electronic warfare is facing an increasingly complex combat environment. Electronic warfare performs frequent work in actual work, during which the working state parameters are recorded in a removable storage device to analyze the problems existing in the work. The working state record of the existing electronic warfare system is generated by the PowerPC computer board and transmitted to the detachable storage device through the bus. After the work is completed, the unloading software is used to unload the working state record from the detachable storage device. Existing electronic warfare syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/602G06F21/62
Inventor 吴萌罗熹杨洋张宴龙
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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