Patent ID: 11956349
Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A method comprising:
receiving, by a communication device from an access device, a resource provider certificate and an access device certificate;
establishing a secure channel between the access device and the communication device using data from the resource provider certificate and the access device certificate; and
transmitting to or receiving data from the access device using the secure channel,
wherein before the secure channel is established, the method further comprises:
determining, by the communication device, a resource provider public key using data in the resource provider certificate and a certificate authority public key;
determining, by the communication device, an access device public key using data in the access device certificate and the resource provider public key; and
deriving, by the communication device, a first session key using the access device public key and a communication device private key, wherein the first session key is used to form the secure channel.