Paper 2016/819
Virtual Grey-Boxes Beyond Obfuscation: A Statistical Security Notion for Cryptographic Agents
Shashank Agrawal, Manoj Prabhakaran, and Ching-Hua Yu
Abstract
We extend the simulation-based definition of Virtual Grey Box (VGB) security -- originally proposed for obfuscation (Bitansky and Canetti, 2010) -- to a broad class of cryptographic primitives. These include functional encryption, graded encoding schemes, bi-linear maps (with uber assumptions), as well as unexplored ones like homomorphic functional encryption.
Our main result is a characterization of VGB security, in all these cases, in terms of an indistinguishability-preserving notion of security, called
Metadata
- Available format(s)
-
PDF
- Publication info
- Published by the IACR in TCC 2016
- Keywords
- cryptographic agentsobfuscationsimulation-based securityindistinguishability-preserving securityconcentrated distributioncomposition theorem
- Contact author(s)
-
sagrawal @ cs utexas edu
mmp @ illinois edu
cyu17 @ illinois edu - History
- 2016-08-26: revised
- 2016-08-26: received
- See all versions
- Short URL
- https://ia.cr/2016/819
- License
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CC BY
BibTeX
@misc{cryptoeprint:2016/819, author = {Shashank Agrawal and Manoj Prabhakaran and Ching-Hua Yu}, title = {Virtual Grey-Boxes Beyond Obfuscation: A Statistical Security Notion for Cryptographic Agents}, howpublished = {Cryptology {ePrint} Archive, Paper 2016/819}, year = {2016}, url = {https://eprint.iacr.org/2016/819} }