Unloaded data encryption and decryption method and system based on PowerPC and detachable storage device

A storage device, encryption and decryption technology, applied in the field of electronic warfare system embedded software

Active Publication Date: 2021-08-20
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

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  • Unloaded data encryption and decryption method and system based on PowerPC and detachable storage device
  • Unloaded data encryption and decryption method and system based on PowerPC and detachable storage device

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Embodiment

[0030] The design principle of the present invention is: the key distribution, the encryption process is embedded, and the unloading storage device key is not matched;

[0031] The key distributed finger key is located in PowerPC memory, detachable storage device, key management machine;

[0032] In the encryption process, embedding PowerPC uses the memory key and the detachable storage device key synthesis key after encryption;

[0033] The unmountable storage device key and ciphertext does not match, and the unloading storage device cannot break the key and ciphertext after being acquired by the enemy.

[0034] Based on the above principles, such as figure 1 As shown, this embodiment proposes a PowerPC and detachable storage device to unload data encryption methods, including the following steps:

[0035] (1) PowerPC reads the key Key1 (32 16-bit key) in PowerPC memory through the inline program;

[0036] (2) PowerPC reads the key Key3 (32 16-bit key) on the detachable storage d...

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Abstract

According to the unloading data encryption and decryption method and system based on the PowerPC and the detachable storage device, by utilizing the characteristics that the secret key is distributed, the encryption process is embedded, the secret key of the detachable storage device is not matched with the ciphertext and the like, the unloading and decryption security problem of the working state record is solved, meanwhile, the complexity of pure encryption and decryption software is improved, so the safety of unloading and decryption of the working state record is ensured. The secret key distribution means that secret keys are respectively located in a memory, a detachable storage device and a secret key management machine of the PowerPC; in the encryption process, the PowerPC uses a memory key and a detachable storage device key to synthesize a key and then encrypts the key; mismatching of the secret key and the ciphertext of the unloadable storage device indicates that the secret key and the ciphertext cannot be cracked through an exhaustion method after the unloadable storage device is acquired by an enemy. In addition, hardware overhead does not need to be increased, and multiple airborne projects can be achieved only by upgrading corresponding software.

Description

Technical field [0001] The present invention relates to the field of embedded software in electronic warfare systems, in particular, relating to a PowerPC and detachable storage device unloading data encryption method and system. Background technique [0002] With the rapid development of radar technology and the increasingness of the spatial electromagnetic environment, the electronics warfare faces increasingly complex combat environments. The electronic warfare is frequently working in actual work, and the working status parameter is generated in the detachable storage device to analyze the problems in the work. The working status record of the existing electron war system is generated by the PowerPC computer board. The unloading software is used to perform a working status record from the detachable storage device using the unloading software after the bus is transmitted to the detachable storage device. The existing electronic warfare system uses the form of a clear text, an...

Claims

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Application Information

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Patent Type & Authority Applications(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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