Method, system and server for pushing data

Abstract

The invention discloses a method, a system and a server for pushing data. The method comprises that the server generates a key list for a target user terminal according to information of the target user terminal and informs the target user terminal of the key list; the server generates keys dynamically for the data to be pushed to the target user terminal according to the key list and obtains identification codes of keys; the data is encrypted through keys to obtain encrypted data; the encrypted data and identification codes of keys are pushed to the target user terminal; the target user terminal obtains keys from the key list according to identification codes of keys; and the target user terminal uses keys to decrypt the encrypted data. According to the method, the system and the server, dynamic keys are generated temporarily and dynamically during pushing of the data, so that the safety of one-time data pushing is improved. Besides, encryption keys are not required to be negotiated during data transmission, so that the communication cost is reduced, and the dependence of the data transmission on special network communications can be avoided.

Description

technical field [0001] The present invention relates to the technical field of data push, in particular to a data push method, a data push system and a data push server. Background technique [0002] There are two existing remote data push solutions: [0003] 1. Use the agreed fixed key to encrypt the transmitted data. The disadvantage of this method is that the fixed key used is easy to be cracked, and once the key is cracked, all data transmission will be equivalent to plaintext transmission, and there is no security at all. [0004] 2. Before sending the data, the server temporarily negotiates the dynamic key, and uses the dynamic key to encrypt the sent data. The disadvantage of this method is that it requires multiple communications between the sender and the receiver to complete operations such as handshake, key data transmission, and confirmation. This usually requires the Internet to complete. If other communication methods (such as SMS, wireless data network tran...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it requires multiple communications between the sender and the receiver to complete operations such as handshake, key data transmission, and confirmation. This usually requires the Internet to complete. If other communication methods (such as SMS, wireless data network transmission), will increase the cost

However, on mobile terminals, the availability and stability of the Internet are usually poor, which will make it impossible for dynamic key negotiation to be successfully completed in many user scenarios, which directly leads to the failure of data transmission

Therefore, on mobile terminal equipment, this solution has two problems of high cost and poor usability

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