Research And Implementation Of Cloud Computing Oriented Image Encryption And Retrieval Technology

As handheld terminals and digital imaging equipment are developing rapidly,the data volume of images on the Internet has increased dramatically.Cloud computing technology,which provides new solutions for the management and storage of mass data,has been widely favored by users and service providers.More and more users choose to manage their image files on cloud.However,the rapid growth of cloud computing has also exposed a series of security risks,especially the risk of data leakage,which is the core issue that users are most concerned about at present.Therefore,how to ensure the security of user's image files stored on the cloud and the safe and effective retrieval in the context of mass data,and then construct the data of user's cloud images has attracted much attention in the field of information security and image encryption.The paper focuses on image encryption and ciphertext image retrieval technology based on ensuring the security of user's image data on cloud.Firstly,the current research status of image encryption and ciphertext image retrieval at home and abroad was analyzed and summarized;secondly,relevant basic knowledge involved in cloud computing-oriented image encryption and retrieval technology was studied,which laid a theoretical foundation for the encryption algorithm and retrieval program proposed in this paper;Thirdly,a hybrid color image encryption algorithm combining adaptive DNA coding with domestic SM2 and SM3 encryption algorithms is proposed.In addition,in order to ensure the security of image retrieval,a ciphertext image retrieval scheme combining homomorphic encryption and feature fusion is proposed.Through relevant experiments,the proposed method is proved to be safe and practical.The above research and related experiments demonstrated that the cloud-oriented color image encryption algorithm and ciphertext image retrieval program can effectively improve the security of private images uploaded by users to the cloud,and can support safe and accurate retrieval under ciphertext conditions,so that the users' data can be protected.At the same time,this research also provides new solutions to the hidden risk of data leakage in the development of image encryption and cloud computing.