Patent ID: 11917404
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A computer program product comprising:
a computer readable storage medium and program instructions stored on the computer readable storage medium, the program instructions executable by a computing device of an Issuer to cause the computing device to:
conduct an interactive credential issuance protocol between the computing device of the Issuer and a mobile device seeking access to a mobile device network based on anonymous authentication protocols, wherein the interactive credential issuance protocol results in an unlinkable anonymous credential shared with the mobile device, the interactive credential issuance protocol comprising:
sending a random nonce to the mobile computing device;
receiving a credential request from the mobile computing device;
determining whether or not the credential request is valid using a zero-knowledge proof; and

in response to determining that the credential request is valid, issuing an anonymous unlinkable credential to the mobile computing device, wherein the anonymous credential includes a signature of knowledge for verification by a Verifier.