Invention Grant
- Patent Title: Secure function evaluation between semi-honest parties
- Patent Title (中): 半诚实方之间的安全功能评估
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Application No.: US13562640Application Date: 2012-07-31
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Publication No.: US08977855B2Publication Date: 2015-03-10
- Inventor: Vladimir Y. Kolesnikov , Ranjit Kumaresan
- Applicant: Vladimir Y. Kolesnikov , Ranjit Kumaresan
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Alcatel Lucent
- Current Assignee: Alcatel Lucent
- Current Assignee Address: FR Boulogne-Billancourt
- Agency: Ryan, Mason & Lewis, LLP
- Main IPC: H04L9/32
- IPC: H04L9/32

Abstract:
Methods and apparatus are provided for secure function evaluation between a semi-honest client and a semi-honest server using an information-theoretic version of garbled circuits (GC). An information-theoretic version of a garbled circuit C is sliced into a sequence of shallow circuits C1, . . . Cn, that are evaluated. Consider any wire wj of C that is an output wire of Ci, and is an input wire of Ci+1. When a slice Ci is evaluated, Ci's 1-bit wire key for wj is computed by the evaluator, and then used, via oblivious transfer (OT), to obtain the wire key for the corresponding input wire of Ci+1. This process repeats until C's output wire keys are computed by the evaluator. The 1-bit wire keys of the output wires of the slice are randomly assigned to wire values.
Public/Granted literature
- US20140040620A1 Secure Function Evaluation Between Semi-Honest Parties Public/Granted day:2014-02-06
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