Back to results
US 9,756,027 B2Granted
Protected information sharing
AssigneeInternational Business Machines Corporation
InventorsPing Li, Jia Wei, Yang Zhang
Life of this patent
Estimating the term…
Abstract
A request for sharing information of a first user to a second user is received. Responsive to the request, information of the first user is obtained. The information is encrypted using a first server key to generate first encrypted information, the first server key being unavailable to the second user. The first encrypted information is encrypted using a second user key specific to the second user to generate second encrypted information for sharing with the second user.
Claims3
A method of controlling information sharing, comprising:
- obtaining, responsive to a request for sharing information of a first user to a second user, the information of the first user, wherein the information includes a communication account of the first user;
- encrypting the information using a first server key to generate first encrypted information, the first server key being unavailable to the second user;
- encrypting the first encrypted information using a second user key specific to the second user to generate second encrypted information to be shared with the second user;
- responsive to a request from the second user for initiating communication with the first user using the communication account, decrypting the second encrypted information using the second user key to obtain the first encrypted information;
- decrypting the first encrypted information using the first server key to obtain the communication account in the information;
- and
- causing the communication to be initiated without providing the communication account to the second user.
4 more elements
Dependencies are inferred from the claim text.