Patent ID: 11863689
Assignee: WELLS FARGO BANK, N.A.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A method, executing on a system, the method comprising:
receiving, from a first user computing system, data comprising a request for transferring ownership of a portion of a security, wherein a portion of the data is signed by a signer with a group signature, the group signature comprises an extension, the extension links an identity of the signer;
receiving, from a computing system through the extension, a request to link the identity of the signer;
opening the identity of the signer;
providing, to the computing system, information corresponding to the group signature and a signature of a transferee being linked to the group signature, wherein the transferee is a second user;
revoke signing ability of the signer to use the group signature by adding an identifier of the signer to a revocation list, and

generating signing ability of the second user computing system associated with an identifier of the transferee allowing the second user computing system to sign new data using the group signature,
wherein generating the signing ability of the second user computing system to use the group signature transfers the ownership of the portion of the security to the second user.