[Resource Topic] 2015/052: Interactive Message-Locked Encryption and Secure Deduplication

Welcome to the resource topic for 2015/052

Interactive Message-Locked Encryption and Secure Deduplication

Authors: Mihir Bellare, Sriram Keelveedhi


This paper considers the problem of secure storage of outsourced data in a way that permits deduplication. We are for the first time able to provide privacy for messages that are both correlated and dependent on the public system parameters. The new ingredient that makes this possible is interaction. We extend the message-locked encryption (MLE) primitive of prior work to interactive message-locked encryption (iMLE) where upload and download are protocols. Our scheme, providing security for messages that are not only correlated but allowed to depend on the public system parameters, is in the standard model. We explain that interaction is not an extra assumption in practice because full, existing deduplication systems are already interactive.

ePrint: https://eprint.iacr.org/2015/052

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .