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Data transmitting method and device, and data receiving method and device

A technology of a data receiving device and a data sending device, applied in the field of communication

Inactive Publication Date: 2014-05-07
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the transmission channel is easier to be intercepted by a third party. Through analysis, the encrypted key can be obtained and the data can be cracked. Therefore, there is a certain risk

Method used

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  • Data transmitting method and device, and data receiving method and device
  • Data transmitting method and device, and data receiving method and device
  • Data transmitting method and device, and data receiving method and device

Examples

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Embodiment Construction

[0041] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0042] figure 1 It is a schematic diagram of an embodiment of the data sending method of the present invention. Such as figure 1 As shown, the steps of the data sending method in this embodiment are as follows:

[0043] Step 101, send configuration information to the data receiving device through a predetermined channel, wherein the configuration information includes identification information of n transmission channels used to send the first data, n is a natural number greater than 1, so that the data receiving device can use the preset mapping relationship The identification information of the n receiving channels corresponding to the identification information of the n sending channels is obtained from the table.

[0044] Step 102: After receiving the configuration response information sent b...

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Abstract

The invention discloses a data transmitting method and system, and a data receiving method and system. In the data transmitting method, configuration information is transmitted to a data receiving device through a predetermined channel, wherein the configuration information comprises identification information of n transmitting channels adopted in the first data transmitting process. Encryption is performed on the first data through a predetermined encryption key to obtain second data, the second data is divided into n first data packets, the n first data packets correspond to the n transmitting channels in a one-to-one manner, and each first data packet is transmitted to the data receiving device through a corresponding transmitting channel separately. The transmitted data is divided into a plurality of data packets after encryption, and the data packets are transmitted to the receiver through different physical channels, so the data crack difficulty can be increased, the data transmission safety can be enhanced, and the risk that the data is stolen can be greatly reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data sending method and device, and a data receiving method and device. Background technique [0002] For data transmission with security requirements, usually, a certain reversible encryption algorithm is used to encrypt / decrypt the transmitted data, and both the sender and the receiver know the encryption and decryption keys. And a fixed transmission channel is established between the two entities to realize point-to-point information interaction. In this way, the transmission channel is easier to be intercepted by a third party. Through analysis, the encrypted key can be obtained and the data can be cracked. Therefore, there is a certain risk. [0003] Therefore, for data with a higher security level, in order to reduce the risk of data being stolen and cracked, it is necessary to design a more secure transmission method. Contents of the invention [0004] The technical...

Claims

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Application Information

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IPC IPC(8): H04L9/06
Inventor 赵勇
Owner CHINA TELECOM CORP LTD
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