| Summary: | 碩士 === 育達科技大學 === 資訊管理所 === 104 === Cloud prevalence bring people a lot of data access convenience, but another problem is derived from data security. For the preservation of safety information, generally using a variety of encryption methods, then to maintain the confidentiality of important information for files uploaded to the cloud space, but after a large amount of information on a large number of encryption keys, how to manage this massive of the key problems caused by the user, because cloud storage capacity, place it on a file of a larger number, often due to forget some important files and makes the encryption key information can not reply. Therefore, this study of key storage for cloud data, together with AES (Advanced Encryption Standard) to encrypt the data upload, the use of the key management mechanism proposed in this paper for effective management, can be reached quickly to find the right key to decrypt the encrypted file to obtain the text, in an effective and safe way to achieve the most effective cloud encryption key management of archives, more importantly, the data file to be effective confidentiality.
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