Cryptology ePrint Archive: Report 2013/426
Efficient Garbling from a Fixed-Key Blockcipher
Mihir Bellare and Viet Tung Hoang and Sriram Keelveedhi and Phillip Rogaway
Abstract: We advocate schemes based on fixed-key AES as the best route to highly
efficient circuit-garbling. We provide such schemes making only one AES call per garbled-gate evaluation. On the theoretical side, we justify the security of these methods in the random-permutation model, where parties have access to a public random permutation. On the practical side, we provide the JustGarble system, which implements our schemes.
JustGarble evaluates moderate-sized garbled-circuits at an amortized
cost of 23.2 cycles per gate (7.25 nsec), far faster than any prior reported results.
Category / Keywords: cryptographic protocols / Garbled circuit, garbling scheme, multiparty computation, protocol efficiency, random-permutation model, Yao's protocol
Publication Info: The proceedings version of this paper appears in IEEE Security and Privacy 2013. This is the full version.
Date: received 30 Jun 2013
Contact author: tvhoang at ucdavis edu
Available format(s): PDF | BibTeX Citation
Version: 20130702:190036 (All versions of this report)
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