A privacy protection system and method based on social network

Abstract

The invention discloses a privacy protection system and method based on a social network. The privacy protection method includes the steps that an information sender and an information receiver obtain the function of information interaction between the privacy protection system and a microblog based on the social network; the information sender logs in the privacy protection system and uses a self-adaptive JPEG image steganography for embedding information needing to be transmitted into an image needing to be published in the microblog after encrypting the information; the privacy protection system publishes the microblog containing the encrypted image and updates a microblog head portrait image of the information sender to finish sending the information; the information receiver logs in the privacy protection system and extracts and decrypts the encrypted information in the microblog image published by the information sender, and the information is pushed to the information receiver to finish receiving the information. By the adoption of the privacy protection system and method, it can be guaranteed that a safe and private communication channel is set up between the information sender and the information receiver which communicate in the Internet, and the privacy data of a user are effectively protected from illegal monitoring and stealing.

Description

technical field [0001] The invention relates to the technical fields of information hiding and cryptography, in particular to a social network-based privacy protection system and method. Background technique [0002] With the rapid development of mobile Internet technology, people's demand for privacy protection of communication content is getting stronger and stronger. Existing network communication platforms such as e-mail systems, instant messaging systems, etc. all use encrypted communication content to protect user privacy. This protection measure is based on the security of the cryptographic system and can achieve high security strength as required. However, the disadvantage of this communication mode is that the two parties communicate in a point-to-point communication mode. On the one hand, this communication mode is prone to active attacks by attackers. On the other hand, by analyzing the communication behavior of users, attackers can easily obtain The social relat...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this communication mode is that the two parties communicate in a point-to-point communication mode. On the one hand, this communication mode is prone to active attacks by attackers. On the other hand, by analyzing the communication behavior of users, attackers can easily obtain The social relationship among them and even more important private information

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