Mastercard Incorporated
Method and system for protection of customer PII via cryptographic tokens

Abstract:

A method for facilitating communications while protecting customer privacy through cryptography and withholding of personally identifiable information includes: storing, in a memory of a processing server, contact data and a reference value associated with a first external computing device; receiving, by a receiver of the processing server, a communication request from a second external computing device, the communication request including at least the reference value and a digital signature; validating, by a processor of the processing server, the digital signature using a communicator public key of a cryptographic key pair; receiving, by the receiver of the processing server, a communication message from the second external computing device; and forwarding, by a transmitter of the processing server, the communication message to the first external computing device using the stored contact data following successful validation of the digital signature.