Encryption and Authentication of Works of Art Based on Network Security

Abstract

With the advent of the digital age, the network dissemination and digital protection of works of art face increasingly serious risks of piracy and tampering. The digital storage and display of traditional works of art mostly use a single encryption algorithm, which lacks careful consideration of encryption efficiency and encryption security, making the works of art easy to be stolen or tampered with. The authentication mechanism uses traditional digital signature authentication, which lacks in-depth integration with the actual circulation process of the work. This paper uses the RSA-AES hybrid encryption algorithm for encryption, combined with blockchain technology (BT), hash algorithm and invisible digital watermark technology, to jointly form an authentication mechanism to authenticate and protect works of art. The study first builds an RSA-AES hybrid encryption algorithm, uses the AES algorithm to encrypt the image of the artwork, and uses the RSA algorithm to encrypt and store the AES key. Then, the hash algorithm is used to generate the hash value of the work content, the hash value and related metadata are written into the BT, and the DCT algorithm is used to embed identification information such as copyright information, author ID, creation time, etc., into the pixel-level data of the image. Finally, BT, hash algorithm and invisible digital watermark technology are combined to form a multi-level authentication mechanism, which is applied to the actual performance verification of works of art. The experiment is based on the public data set of WikiArt art paintings to verify the encryption performance of the RSA-AES hybrid encryption algorithm and the authentication performance of the multi-level authentication mechanism. The experimental results show that the authentication accuracy of the multi-level authentication mechanism reaches 98.5%, which is 2.3% higher than that of the single BT authentication mechanism. The defense success rate of the RSA-AES hybrid encryption algorithm in differential attacks reaches 98.4%, and the data loss rate is only 0.01%. The experimental results show that the combining the RSA-AES hybrid encryption algorithm and the multi-level authentication mechanism can effectively improve the copyright protection of works of art and reduce the risk of tampering.