Paper 2013/426 Original: eprint.iacr.org/2013/426 ↗

Efficient Garbling from a Fixed-Key Blockcipher

Mihir Bellare
Viet Tung Hoang
Sriram Keelveedhi
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.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2013-07-02: last updated
2013-07-02: published
Short URL
https://ia.cr/2013/426
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2013/426,
      author = {Mihir Bellare and Viet Tung Hoang and Sriram Keelveedhi and Phillip Rogaway},
      title = {Efficient Garbling from a Fixed-Key Blockcipher},
      howpublished = {Cryptology {ePrint} Archive, Paper 2013/426},
      year = {2013},
      url = {https://eprint.iacr.org/2013/426}
}
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