Patent ID: 7904713
Filing Date: 2011-03-08
Classification: G06Q,G07F,H04L

Abstract:
1. A method comprising: a) receiving with an automated banking machine at least one first message from a host banking system, wherein the automated banking machine includes a card reader, a cash dispenser, and an encrypting pin pad (EPP), wherein the EPP includes an original public key of an initial certificate authority (CA) and at least one original public key of the host banking system, wherein the at least one first message includes a new certificate of a new CA, wherein the new certificate of the new CA includes a new public key of the new CA, wherein the new certificate of the new CA is signed by the initial CA, wherein new certificate of the new CA is further signed by the host banking system; b) validating a digital signature of the initial CA included with the new certificate of the new CA using the original public key of the initial CA; c) validating a digital signature of the host banking system included with the new certificate of the new CA using the at least one original public key of the host banking system; and d) storing the new public key of the new CA in the EPP.