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:
Nov. 03, 2020
Filed:
Apr. 23, 2018
International Business Machines Corporation, Armonk, NY (US);
Jan L. Camenisch, Zurich, CH;
Manu Drijvers, Adliswil, CH;
Anja Lehmann, Rueschlikon, CH;
Kai Wilhelm Samelin, Rueschlikon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present disclosure relates to a method for using a secret key for cryptographically processing a data item in an enclave enabled system. The method comprises: computing a first set of shares of the secret key and storing them in an encrypted format. Each encrypted share may be sent to respective component in a first set of components. In response to sending the encrypted shares, a modified encryption of the respective share may be received from each of the first set of components. Each of the received modified encryptions may be encrypted and the resulting modified share is sent to the respective first set of components. In response to sending the decrypted modified shares, a data item cryptographically processed using the respective share may be received from each of the first set of components. The received data items may be combined to obtain a cryptographically processed data item.