Abstract: A method for detecting an attempted attack on a security system. In one preferred embodiment of the present invention, the method includes the step of retrieving a parameter from a hardware system, wherein the parameter changes during an operation of the hardware system. Then, comparing the retrieved parameter with a previously stored parameter; and, detecting a lack of change between the retrieved parameter and the previously stored parameter. An apparatus and an article of manufacture for detecting an attempted attack on a security system is also disclosed.

Abstract: A method for authenticating a device including the steps of measuring at least one performance parameter of the device to obtain a measurement; and comparing the measurement of the at least one performance parameter with a previously stored measurement of the at least one performance parameter to determine an identity of the device. An apparatus and an article of manufacture for authenticating a device is also disclosed.

Abstract: A method for using optical media for identification purpose including the steps of exposing a portion of the optical media to a source of radiation; detecting an imperfection in the portion of the optical media; and, quantifying the imperfection to create a unique identifier. An apparatus for using an optical media for identification purposes, including a light source for exposing a portion of the optical media to a radiation; and, a receptor for receiving the radiation through the portion of the optical media, wherein the receptor measures a change in radiation that is received once the radiation has passed through the portion of the optical media.

Abstract: A method for authenticating a device including the steps of operating the device to create at least one failure condition; obtaining a measurement based on the at least one failure condition; and, comparing the measurement based on the at least one failure condition with a previously stored measurement based on the at least one failure condition to determine an identity of the device. An apparatus and an article of manufacture for authenticating a device is also disclosed.

Abstract: The present invention discloses a method and system for integrating physical mail and electronic mail, such that it enables delivery of documents in electronic as well as physical form. In one embodiment, the present invention is a method for enabling the sending of physical mail to a recipient upon receipt of electronic mail from a sender.