Data transmission ciphering and integrity checking method

A technology for integrity verification and data transmission, which is applied in transmission systems, electrical components, wireless communications, etc., can solve the problems of unstoppable, unresisting, and destroying shared serial number attacks, so as to improve performance, security, Addressing the effects of data tampering

Active Publication Date: 2009-07-08
观源(上海)科技有限公司
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  • Abstract
  • Description
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Problems solved by technology

However, simply relying on message authentication codes to detect the integrity of each transmitted data has the disadvantage of being unable to resist attacks such as replay, so it does not have sufficient security
[0004] Through document retrieval to prior art, it is found that: W.Shi et al. are in "Proceedings of the International Conference on Parallel Architectures and Compilation Techniques, 2004, pp.123-134" (Proceedings of the International Conference on Parallel Architecture and Compilation Techniques, 2004, "Architectural Support for High SpeedProtection of Memory Integrity and Confidentiality in MultiprocessorSystems" published on page 123-page 134) (architecture supports multiprocessor system memory integrity and high-speed protection of con

Method used

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  • Data transmission ciphering and integrity checking method

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Embodiment Construction

[0012] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and provides detailed implementation and specific operation process; but the protection scope of the present invention is not limited to the following embodiments.

[0013] Such as figure 1 As shown, data 500 is currently being transmitted from source node 100 to destination node 200 . In order to encrypt the transmitted data 500 and implement integrity verification, the source node performs the following process:

[0014] Generate message authentication code 501 for data 500;

[0015] Encrypt data 500 to obtain ciphertext data 502;

[0016] The result sent to the transmission path is ciphertext data 502 and message authentication code 503;

[0017] If the message authentication code is not encrypted, the sent message authentication code 503 is the messa...

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Abstract

The invention relates to an encryption and integrality check method of a data-transmission belonging to the electric communication technique field. In the invention, an originating node and a destination node share a root key not known by attackers, the root key and message authentication codes of all the prior transferred data generate an encryption key for encrypting the prior transferred data; at the present an encrypted data and a message authentication code corresponding the data node are transferred from the originating node to the destination node. The invention can encrypt and check the data transferred between the nodes and have advantages of safety and high performance.

Description

technical field [0001] The present invention relates to a data transmission method in the technical field of telecommunications, in particular to an encryption and integrity check method for data transmission. Background technique [0002] To protect information, data in transit needs to be encrypted and integrity checked. Encryption is to protect the confidentiality of data, so that attackers cannot understand the original meaning of the data intercepted on the transmission path; integrity verification is to prevent attackers from maliciously modifying the transmitted data, injecting forged data, replaying Tampering with data transmitted in the past, blocking currently transmitted data, reversing the order of data transmission, etc. This protection requirement for data transmission exists in many fields; for example, data is transmitted from a certain processor inside the same computer to another processor; another example is that data is transmitted from one computer syst...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04W12/02H04W12/10H04W12/106
Inventor 侯方勇谷大武张媛媛张俊钦曾梦岐
Owner 观源(上海)科技有限公司
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