Abstract: Selective encryption for object data such that objects having copyrights to-be-protected are encrypted. There are provided a plurality of data compression devices for compressing respective object data respectively corresponding to a plurality of objects which compose a scene, a multiplexor for multiplexing scene description data and compressed object data to produce a multiplexed bit stream MB, a scrambler for encrypting (scrambling) individual streams corresponding to the objects having copyrights to-be-protected in the multiplexed bit stream MB, to produce an encrypted bit stream SB, for outputting the encrypted bit stream SB to a data storage medium or a data transmission medium.

Abstract: Methods, systems and computer program products are provided which allow for generation and authentication of RSA encrypted values by utilizing a combination of entity specific information such as biometric information and by incorporating information about the secret seeds into the cryptographic values p and q utilized to encrypt the information. Thus, authentication of an encrypted message may be achieved without requiring storage of the secret seed values utilized to generate the cryptographic values. Furthermore the present invention assures that users with different entity specific information utilize different p and q values.

Abstract: A system and method for generating and remotely installing a private secure and auditable network is provided. Node identification, link, and application information is input into a template. A generator generates components using the information in the template and the components are remotely installed using an installation server. The components include agent modules which are each installed at predetermined target site and establish communication with the installation server to facilitate the download of other components, including application software and configuration files. Each node can only be installed once and is specific to a predetermined target site. For each link, a unique pair of keys is generated in a form which is not human readable, each key corresponds to a different direction of communication over the link. Data transmitted between nodes is encrypted using public-private key pairs.

Abstract: A network is protected from e-mail viruses through the use of a sacrificial server. Any executable programs or other suspicious parts of incoming e-mail messages are forwarded to a sacrificial server, where they are converted to non-executable format such as Adobe Acrobat PDF and sent to the recipient. The sacrificial server is then checked for virus activity. After the execution is completed, the sacrificial server is rebooted.

Abstract: A method for resetting a password in a computer system is provided. A remote reset signal is received. A local reset verification signal is received at the computer system. An elapsed period of time between receipt of the remote reset signal and the local reset verification signal is determined. The password is reset in response to the elapsed period of time being less than a predetermined time period.

Abstract: Use of an especially small-sized and valuable display device (b 31) is limited to persons knowing a password, not by any requirement that a password (33) always be entered when the display device (31) is switched on, but rather detecting, the detachment of the display device (31) from the equipment (35-39) controlling it and measuring its time of being detached, for limiting the use of the display device (31) on the basis of a certain predetermined and adjustable time limit which, when exceeded, requires the password be entered.

Abstract: A method and apparatus for insuring that a digital storage device will only be able to download or play files that were obtained from sources deemed by the manufacturer of the device or by an overseeing organization to be acceptable. The files are downloaded in an unencrypted from and then encrypted prior to storage in a memory. The stored encrypted files are unencrypted prior to being transferred from the memory to the digital storage device.

Abstract: A block cipher supporting a selectable block size of bit granularity includes a recursive Feistal network structure having a plurality of substitution boxes (S-boxes), each S-box being generated by a message digest function used as a pseudo-random number generator and one of a plurality of keys. Rather than use message digest functions as dynamic S-boxes (as in the well-known Luby-Rackoff cipher), in the present invention S-boxes may be constructed from a key at cipher build time. For larger S-boxes, a subordinate Feistal network composed of S-boxes half the size of the desired S-box may be used. Once the S-box size, N, is sufficiently small (e.g., less than 16 input bits), a permutation of integers 0 . . . 2N−1 may be computed using the message digest as a cryptographic strength pseudo-random number generator (RNG) and the key. The generated integers may be used within the S-box as part of a look-up table for shuffling the input data to the S-box into encrypted output data.

Abstract: In a network-connected distributed system including nodes through which digital data flow, one or more of the nodes adapted to process the digital data, a method for efficiently managing the transmission of units of digital data from node to node, includes the steps of receiving, at one of the one or more nodes, units of digital data first transmitted by an originating node; filtering out sufficiently processed units of the digital data based on filtering information; transmitting, to the originating node and/or other nodes, filtered results relating to the sufficiently processed units; queuing, for processing at other nodes, unfiltered units of the digital data which are not filtered out; and updating the filtering information according to results of automatic processing performed in and received from the one of the one or more nodes and/or other nodes in the system.

Abstract: An apparatus for simulating keypad entry of an access code into a security system controller. The apparatus comprises at least one electronic key encoded with a electronic key identifier, at least one electronic key reader adapted to electronically interface with the electronic key to electronically transfer data signals therebetween, a security system controller having memory for storing at least one security code therein and operably connected to a keypad for entering access codes thereon, and simulator circuitry electrically connected to the electronic key reader and operably electrically connected to the security system controller, whereby upon presentation of the electronic key to the electronic key reader, the simulator circuitry interrogates the electronic key then translates the electronic key identifier into an access code.