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Data processing method and device

A technology for data processing and plaintext data, applied in the field of information security, can solve the problem of no disclosure of details, and achieve the effect of improving security and resisting deciphering methods

Pending Publication Date: 2019-09-06
HYGON INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] According to public documents, the virtualization technology uses an address obfuscation scheme for memory encryption, but no details are disclosed

Method used

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  • Data processing method and device

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. However, it should be understood that many implementation-specific decisions can be made during the development of any such actual implementation in order to achieve the developer's specific goals, and that these decisions may vary from implementation to implementation .

[0028] Here, it should be noted that, in order to avoid obscuring the present disclosure due to unnecessary details, only the device structure closely related to the solution according to the present disclosure is shown in the drawings, and the structure related to the present disclosure is omitted. Other details that don't really matter.

[0029] It is to be understood that the present disclosure is not limited to only the described embodiments as described be...

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Abstract

The invention provides a data processing method and device, which can effectively resist the possibility that an attacker generates the same ciphertext by using different addresses and different plaintext data, and effectively resist the confusion and cracking of the current memory address. The method comprises the following steps: acquiring an address of a physical memory to be stored in plaintext data to be processed as a first address, and performing nonlinear confusion on a preset key by utilizing the first address to obtain a first key; and encrypting the plaintext data to be processed byusing the first key, and storing an encryption result in a physical memory corresponding to the first address.

Description

technical field [0001] The present invention relates to the technical field of information security, in particular to a data processing method and device. Background technique [0002] There is a virtualization technology in the prior art, which can enable servers, especially cloud servers, to obtain full software and hardware encryption protection. Under the protection of this virtualization technology, the problem of leakage of the virtual machine management program in the traditional mode will no longer exist, and the monitor and the virtual machine running on the same machine are encrypted and isolated. [0003] According to public documents, the virtualization technology uses an address obfuscation scheme for memory encryption, but no details are disclosed. Domestic security teams have deciphered the address obfuscation scheme, and successfully achieved it: writing different designed plaintexts in two different physical address memories can generate the same ciphertext...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/06
CPCH04L9/0863H04L9/0631H04L2209/08H04L2209/16
Inventor 周鹏赵凤海
Owner HYGON INFORMATION TECH CO LTD
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