Multi-party secure communication method and device based on attribute encryption, and medium
A secure communication and attribute encryption technology, applied in the field of information security, can solve problems such as poor scalability, complex key management, and low efficiency, and achieve the effect of protecting security and solving difficult key management
Pending Publication Date: 2022-02-15
BEIJING ANTIY NETWORK SAFETY TECH CO LTD
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Problems solved by technology
However, the current end-to-end encryption schemes use traditional symmetric encryption algorithms (AES, SM4, etc.) Inefficiency and other limitations
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[0039] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0040] It should be noted that, in the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other; and, based on the embodiments in the present disclosure, those of ordinary skill in the art obtained without creative work All other embodiments belong to the protection scope of the present disclosure.
[0041] It is noted that the following describes various aspects of the embodiments that are within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and / or function described herein is illustrative only. Based on the present disclosure one skilled in the art should appreciate that an aspect described herein may be implemented independently of any other aspects and that two or more of t...
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The invention relates to a multi-party secure communication method and device based on attribute encryption, and a medium, and the method comprises the steps: calling an algorithm of a key management center, encrypting to-be-sent information, and generating a ciphertext; determining the attribute of a communicator for decrypting the ciphertext, and generating an access control structure according to the attribute; connecting the ciphertext with the access control structure in series to obtain encrypted data, and sending the encrypted data to the communicator; receiving the encrypted data; and decrypting the encrypted data through the own private key to obtain plaintext information. According to the method, multi-party secure communication is realized through an attribute encryption technology, the access control structure is connected with the ciphertext in series, and the attribute is associated with the key, so that the problems of difficulty in key management, tedious process, poor expansibility, low efficiency and the like existing in a traditional multi-party communication encryption scheme are solved, and the security of data in multi-party communication can be effectively protected.
Description
technical field [0001] The present invention relates to the technical field of information security, in particular to a multi-party secure communication method, device and medium based on attribute encryption. Background technique [0002] In the multi-party communication scenario, because there are multiple intermediate links, including transmission links on different communication links and processing links in the exchange and transfer process of service providers, these links may have the risk of leaked information. On the communication link that transmits plaintext, the transmitted information can be obtained by capturing packets. During the process of exchange and transfer processing by service providers, there is a risk of leakage of plaintext information. In the existing security solutions for multi-party communication, there are two technical routes of end-to-end encryption and point-to-point encryption. The point-to-point encryption scheme can prevent the risk of ...
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Patent Timeline
Login to View More IPC IPC(8): H04L9/40
CPCH04L63/0435H04L63/06
Inventor 余秦勇刘光前黄良强徐翰隆肖新光
Owner BEIJING ANTIY NETWORK SAFETY TECH CO LTD