Updatable Block-Level Message-Locked Encryption

  title={Updatable Block-Level Message-Locked Encryption},
  author={Yongjun Zhao and Sherman S. M. Chow},
Deduplication is a widely used technique for reducing storage space of cloud service providers. Yet, it is unclear how to support deduplication of encrypted data securely until the study of Bellareetal on message-locked encryption (Eurocrypt 2013). Since then, there are many improvements such as strengthening its security, reducing client storage, etc. While updating a (shared) file is common, there is little attention on how to efficiently update large encrypted files in a remote storage with… CONTINUE READING
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