Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2011-03-15
2011-03-15
Pezzlo, John (Department: 2465)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S278000, C370S282000, C370S386000
Reexamination Certificate
active
07907542
ABSTRACT:
An apparatus, system, and method for constructing, transmitting, and authenticating a password utilized by an authentication device to authenticate an access device. The authentication device receives the password from the access device, authenticates the access device if the password matches stored information, and returns an acknowledgment message that includes an index value associated with a stored character set. The access device constructs and transmits the password. The access device receives from a user, a plurality of predefined characters forming a User ID. The access device also receives the acknowledgment message and index value from the authentication device. The index value is used to identify a set of password modification factors from a plurality of sets stored in a lookup table. The access device utilizes the identified set to modify a password, and transmits the password to the authentication device.
REFERENCES:
patent: 7836166 (2010-11-01), Kuan et al.
patent: 2006/0075230 (2006-04-01), Baird et al.
patent: 2008/0301791 (2008-12-01), Smith et al.
5th Fleet, L.L.C.
Pezzlo John
Simth Steven W.
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