Equality check implemented with secret sharing
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United States of America Patent
Stats
-
Mar 26, 2019
Grant Date -
Jan 11, 2018
app pub date -
Jul 8, 2016
filing date -
Jul 8, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of performing an equality check in a secure system, including: receiving an input v having a known input property; splitting the input v into t secret shares vi where i is an integer index and t is greater than 1; splitting an input x into k secret shares xi where i is an integer index and k is greater than 1; splitting the secret shares xi into a s chunks resulting in s·k chunks yj where j is an integer index; calculating a mapping chain t times for each secret share vi, wherein the mapping chain including s·k affine mappings Fj, wherein yj and Fj−1(yj−1) are the inputs to Fj and the F0(y0)=vi; and determining if the outputs have a known output property indicating that the input x equals a desired value.
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International Classification(s)
- 2016 Application Filing Year
- H04L Class
- 37326 Applications Filed
- 27972 Patents Issued To-Date
- 74.94 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H04L Class
- 0 % this patent is cited more than
- 6 Age
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