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 destroying shared serial number attacks, inability to resist, and inability to stop, so as to solve data tampering behavior and improve security , performance-enhancing effects

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

CN101478548BActive Publication Date: 2012-07-04观源(上海)科技有限公司
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  • Data transmission ciphering and integrity checking method
  • 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 carried out on the premise of the technical solution of the present invention, and the detailed implementation and specific operation process are given; 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 ...

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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

Patent Timeline
04 Jul 2012
Publication
CN101478548B
IPC
H04L29/06; H04W12/02; H04W12/10; H04W12/106
Inventors
侯方勇; 谷大武