Secret encryption with public or delegated comparison
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 30, 2013
Grant Date -
Jun 16, 2011
app pub date -
Dec 15, 2009
filing date -
Dec 15, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Described is a technology comprising a system in which two distrusting parties can submit sets of encrypted keywords using two independent secret keys to a third party who can decide, using only public keys, if the underlying cleartext message of a cryptogram produced by one distrusting party matches that of a cryptogram produced by the other. The third party (e.g., a server) uses generator information corresponding to a generator of an elliptic curve group to determine whether the sets of encrypted keywords match each other. Various ways to provide the generator information based upon the generator are described. Also described is the use of one-ray randomization and two-way randomization as part of the system to protect against dictionary attacks.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully