Abstract: Authentication codes associated with an entity are generated. A stored secret associated with an entity is retrieved. At a first point in time, a first dynamic value associated with a first time interval is determined. A first authentication code based on the first dynamic value is determined. At a second point in time, a second dynamic value associated with a second time interval is determined. A second authentication code based on the second dynamic value is determined. The first and second authentication codes are derived from the stored secret and the amount of time between the first and second points in time is different from the length of the first time interval.

Abstract: A technique is utilized in the configuration and seeding of security tokens at third party facilities, particularly at facilities of a configuration agent, such that a token can be configured without the configuration agent having security-defeating knowledge about the token. Such a technique allows a third party to provision a token with a seed, but in such a way that the third party will not know, or be able to construct, the seed after the seed provisioning process is complete. The seed may include, by way of example, a symmetric key or other secret shared by two or more entities. In some arrangements, a method is used for secure seed provisioning. Data is derived from inherent randomness in a token or other authentication device. Based on the data, the token or other authentication device is provisioned with a seed.

Abstract: A method of communicating within a system that includes a device, a controller for the device, a token, and a driver which implements a predefined interface for enabling communication with and/or control of the device through the controller, the method involving: via the predefined interface, receiving instructions and/or data at the controller from the driver for controlling the device; via the predefined interface, receiving at the controller a preselected control parameter indicating that communication with the token is desired; and in response to receiving the preselected control parameter, directing communications to the token.

Abstract: A method is used for secure seed provisioning. Data is derived from inherent randomness in an authentication device. Based on the data, the authentication device is provisioned with a seed.

Abstract: A process for detecting the forms of the prion pathogens responsible for subacute, transmissible, spongiform encephalopathies, including a macrocyclic adjuvant ligand (AML), free or bound to a support, that is added to a biological sample capable of containing PrPsc, the resulting suspension then being reacted with an anti-PrPsc antibody, and the presence of PrP is then detected.