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US Patent 8989390 Certify and split system and method for replacing cryptographic keys

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Is a
Patent
Patent
0

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
0
Patent Number
89893900
Patent Inventor Names
Alexander Gantman0
Gregory G. Rose0
Date of Patent
March 24, 2015
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Patent Application Number
116093020
Date Filed
December 11, 2006
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Patent Citations Received
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US Patent 12010238 Systems and methods for cryptographic authentication of contactless cards
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US Patent 11777720 Distributed anonymized compliant encryption management system
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US Patent 11843698 Systems and methods of key selection for cryptographic authentication of contactless cards
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Patent Primary Examiner
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Matthew Smithers
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Patent abstract

A feature is provided that facilitates securely creating and/or replacing cryptographic keys. A first key pair is created comprising first private key and first public key. A second (spare) key pair is created comprising second private key and second public key. The second key pair is associated with the first private key. The second key pair is divided into shares and distributed to at least two shareholders. When the first key pair is to be replace, the second key pair is recreated and authenticated with at least a portion of the distributed shares. A trust level is associated with the second key pair corresponding to a trust level of the first key pair. The first key pair may be invalidated upon authentication of the second key pair. Further configurations provide for the creation of additional spare key pairs.

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