The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2015
Filed:
Feb. 14, 2014
Alephcloud Systems, Inc., Sunnyvale, CA (US);
Roy Peter D'Souza, Belleview, WA (US);
PivotCloud, Inc., Sunnyvale, CA (US);
Abstract
Methods, systems and apparatuses for a custodian securing a secret are disclosed. One method includes receiving, by a custodian server of a first custodian, encrypted shares, wherein the encrypted share are generated based on a secret of the user, a policy, and a plurality of public keys, comprising generating a plurality of shares from the secret, and encrypting each share utilizing a corresponding one of the plurality of public keys. The method further includes verifying, by the custodian server, that the encrypted shares can be used to reconstitute the secret upon receiving the encrypted shares, comprising leveraging, by the first custodian, one-way cryptographic functions, wherein the first custodian can reconstruct the secret, but cannot obtain access to the secret or any of the shares.