Visa Inc.
System and method for secure device connection

Abstract:

A method includes generating, by a portable communication device, a first random code and transmitting the first random code to an access device. The access device receives the first random code, generates a second random code, receives a personal token from a user of the portable communication device, and hashes the first random code, the second random code, and the personal token to form a first hash output. The first hash output and the second random code are received from the access device. The first random code, a stored personal token, and the second random code are hashed to form a second hash output. A determination is made if the first hash output and the second hash output are equal. A secure communication channel is formed between the portable communication device and the access device when the first hash output and the second hash output are equal.