Patent ID: 6259909
Filing Date: 2001-07-10
Classification: G06F,H04L,H04W

Abstract:
A method for secure user access to a separate system having data stored in a memory device, comprising the following steps:establishing a first connection between a first communications device and an access device and transmission of a first code word from the first communications device to the access device;comparing the first code word with first authentication data stored in the access device;establishing a second connection between a second communications device and the access device, and transmitting a second code word form the second communications device to the access device;comparing the second code word with second authentication data stored in access device;transmitting a third code word from access device to the first communications device;transmitting the third code word from the first communications device to the second communications device;transmitting the third code word from the second communications device to the access device; andgranting access to the system via at least one of the communications devices, given a valid third code word and the presence of a predetermined relationship between the first and second code words and the second authentication data stored in access device.