Encrypted text matching system, method, and computer readable medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 30, 2018
Issued Date -
N/A
app pub date -
Apr 23, 2014
filing date -
Apr 24, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An encrypted text matching system includes: an auxiliary data generating unit that generates first and second auxiliary data, which are for verification of matching between a first encrypted text that is obtained by encrypting at least one of a plurality of data segments into which input data is divided by segmenting unit and that is registered with a storage device and a second encrypted text that is obtained by encrypting at least one of a plurality of data segments into which input data to be matched is divided by segmenting unit, the verification being performed by using a Hamming distance between plaintexts; and a matching determining unit that takes a difference between the first and second encrypted text, and determines whether a Hamming distance between plaintexts that corresponds to the difference between the first and second encrypted text is equal to or less than a predetermined certain value.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- H04L Class
- 29135 Applications Filed
- 23333 Patents Issued To-Date
- 80.09 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H04L Class
- 0 % this patent is cited more than
- 7 Age
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