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Paper 2016/972

Revealing Encryption for Partial Ordering

Helene Haagh and Yue Ji and Chenxing Li and Claudio Orlandi and and Yifan Song

Abstract

We generalize the cryptographic notion of Order Revealing Encryption (ORE) to arbitrary functions and we present a construction that allows to determine the (partial) ordering of two vectors i.e., given E(x) and E(y) it is possible to learn whether x is less than or equal to y, y is less than or equal to x or whether x and y are incomparable. This is the first non-trivial example of a Revealing Encryption (RE) scheme with output larger than one bit, and which does not rely on cryptographic obfuscation or multilinear maps.

Note: Full version of paper accepted at IMACC 2017

Metadata
Available format(s)
PDF
Publication info
Published elsewhere. Minor revision. 16th IMA International Conference, IMACC 2017
Keywords
secret-key cryptographyorder-revealing encryptionrevealing encryption
Contact author(s)
haagh @ cs au dk
History
2017-09-21: revised
2016-10-12: received
See all versions
Short URL
https://ia.cr/2016/972
License
Creative Commons Attribution
CC BY
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