Abstract: A system for building tolerance into authentication of a computing device includes a means for executing, from a computer-readable medium, computer-implementable steps of: (a) receiving and storing a first digital fingerprint of the device during a first boot of an authenticating software on the device, the first digital fingerprint based on a first set of device components, (b) receiving a second digital fingerprint from the device at a subsequent time, (c) comparing the second digital fingerprint with a plurality of stored digital fingerprints of known devices, (d) in response to the comparison indicating a mismatch between the second digital fingerprint and the plurality of stored digital fingerprints, generating a request code comprising instructions for the device to generate a third digital fingerprint using the first set of device components, (e) sending the request code to the remote device, (f) receiving the third digital fingerprint from the remote device in response to the request code, and (g) aut

Abstract: Techniques are provided secured communication of data, such as in the context of a public key infrastructure (PKI). In one embodiment, the technique may involve using a private key that is bound to the device requesting the secure data, thereby making it harder for someone to copy, steal or fake. The private key may be generated by adding a filler code to a unique device identifier. The identifier may be based on at least one user-configurable parameter and at least one non-user-configurable parameter of the device.

Abstract: A system for content delivery operates as a static network device for delivering content to a mobile node. The system includes a transceiver adapted to receive a device identifier over a public network from the mobile node, the device identifier based on a combination of user-configurable and non-user-configurable parameters of the mobile node, a processor operatively coupled to the transceiver and to memory storing executable code. Executed, the code enables the processor to access a database of authorized device identifiers corresponding to known mobile nodes, establish, in response to the received device identifier matching one of the authorized device identifiers, a secure private network (SPN) with the mobile node, the established SPN tunneling across a segment of the public network, obtain the content for the mobile node, and send the content to the mobile node via the SPN.

Abstract: Tokens identifying all of the physical routing devices, i.e., network nodes, through which a packet travels are recorded in a limited amount of space reserved in the header of the packet for such tokens. When insufficient space remains in the header of the packet for all tokens required to identify all physical routing devices through which the packet travels, sequences of multiple tokens are replaced with an abbreviation token representing the sequence. The sequence of tokens represented by an abbreviation token can also be abbreviation tokens, supporting recursive abbreviation of the token sequence in the header of the packet as needed to record the entire route of the packet through the network regardless of the limited space in the header for tracking the route of the packet.

Abstract: A device-bound certificate authority binds a certificate to one or more devices by including digital fingerprints of the devices in the certificate. A device only uses a device-bound certificate if the digital fingerprint of the device is included in the certificate and is verified. Thus, a certificate is only usable by one or more devices to which the certificate is explicitly bound. Such device-bound certificates can be used for various purposes served by certificates generally such as device driver authentication and authorization of access to secure content, for example.