Cryptography inventions 02/07

20070041583 - Systems and methods for identity-based encryption and related cryptographic techniques: A method and system for encrypting a first piece of information M to be sent by a sender [100] to a receiver [110] allows both sender and receiver to compute a secret message key using identity-based information and a bilinear map. In a one embodiment, the sender [100] computes an... Agent: Lumen Intellectual Property Services, Inc.

20070041584 - Method for providing activation key protection: A software activation method is disclosed which uses a two-key paradigm. The method provides increased piracy protection while providing a relatively straight forward process for a user to satisfy a license claim.... Agent: Hamilton & Terrile, LLP

20070041585 - Receiver apparatus for mpeg-4 ipmp extended isma media stream: A receiver, which receives an ISMA media stream that is MPEG-4 IPMP-expanded, is provided with processes of: receiving an ISMA media stream containing an ISMA head, contents and an IPMP tool list descriptor that indicates a method for processing the contents; acquiring the IPMP tool list descriptor from the ISMA... Agent: Greenblum & Bernstein, P.L.C

20070036353 - Authentication and encryption methods using shared secret randomness in a joint channel: The present invention relates to secret key generation and authentication methods that are based on joint randomness not shared by others (JRNSO), in which unique channel response between two communication terminals generates a secret key. Multiple network access points use a unique physical location of a receiving station to increase... Agent: Volpe And Koenig, P.C. Dept. Icc

20070036354 - Encoding and decoding methods for secure scalable streaming and related systems: A method and system for securely and scalably encoding data are disclosed. A method and system for decoding data which has been securely and scalably encoding are also disclosed. In one encoding method embodiment, the present invention recites receiving data. The present method then segments the data into corresponding regions.... Agent: Hewlett-packard Company Intellectual Property Administration

20070036355 - Key generating method and key generating apparatus: A key generating method is disclosed which includes the steps of: firstly detecting first change information as first change information data; secondly detecting second change information different from the first change information as second change information data; and merging the first change information and the second change information into key... Agent: Wolf Greenfield & Sacks, PC

20070036356 - Dvd copy protection: A record carrier for storing at least one stream of linked content cells thereon, which linking is performed based on navigation data. The record carrier includes modified navigation data and/or a stream arrangement of at least one stream of linked content cells, so that an access of the at least... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070036357 - Watermarking of multimedia signals: The invention concerns a method and apparatus for embedding and detecting watermarks in a digital host signal. In the embedding method a watermark sequence of length Lw/N bits carrying predetermined information is generated and then up-sampled by a factor N (preferably N=2). At intermediate sampling points of the up-sampled sequence... Agent: Philips Intellectual Property & Standards

20070036358 - Secure and automatic configuration of wireless networks: A first device receives a message over a wired connection from a second device seeking to establish a secure wireless connection with the first device. In response to the received message, the first device exchanges information with the second device and automatically selects a wireless connection configuration. The first device... Agent: Morgan, Lewis & Bockius, LLP.

20070036359 - Wireless communication system, terminal, method for reporting status of terminal, and program: A wireless communication system includes a plurality of terminals connected to at least one wireless network on the basis of authority of security configuration parameters shared by the plurality of terminals. Each of the plurality of terminals revokes security configuration parameters of the terminal itself or security configuration parameters of... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070030960 - System and method for generating random permutations of elements: A system and method for generating random permutations of elements (e.g., integers) in a test generation tool by providing one or more ordered ranges (110-170), each represented by a low and high value. Initially a single range is provided corresponding to the entire set of integer to be permuted. A... Agent: Ibm Corporation Intellectual Property Law

20070030961 - Personal authenticating multi-function peripheral: A method and apparatus of printing a document in a secure manner, includes receiving, by a printer, print data that has been encrypted using a printer public key. The printer-public-key-encrypted print data is decrypted by the printer using a printer secret key, to obtain decrypted print data as well as... Agent: Foley And Lardner LLP Suite 500

20070030962 - Parallel random number determinations for a stream cipher utilizing a common s-box: Parallel generation of random values of a stream cipher utilizing a common S-box is provided. The generation of the values includes determining if a collision exists between accesses of the common S-box. The determination of the two sequential random values is then modified based on whether a collision exists between... Agent: Coats & Bennett, PLLC

20070030964 - Method, apparatus, and program for processing information: An information processing apparatus decrypts stream data encrypted according to a first encryption method using a key encrypted according to a second encryption method. In the apparatus, an update instructing unit identifies the update timings of decryption keys and issues an update command. A decryption key output unit outputs a... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070030963 - Securing and controlling access to digital data: Techniques for securing and controlling access to digital data are disclosed. A security-code is generated based on a plurality of input received from an input device which does not have to be a keyboard (e.g., joy-stick, sensor, touch-screen), but can detect movement input by a user. The movement can, for... Agent: Beyer Weaver & Thomas, LLP

20070030966 - Method and apparatus for embedding data within the vertical blanking interval of video transmissions: The present invention teaches methods, systems and articles of manufacture for embedding information within the vertical blanking interval (VBI) of a video signal. Such embedded data may be operative for the control of a set-top-box receiver, VCR, DVD player/recorder, computer or television, or may contain software which may be installed... Agent: Mr. Tamiz Khan

20070030965 - Methods and apparatuses for management of entitlement to digital security operations: Methods and apparatuses for management of entitlement to security operations. In one aspect of an embodiment, a method to secure digital content against unauthorized access, includes: receiving a request in a security application to invoke an operation on a digital artefact; and determining an entitlement to the operation in the... Agent: James C. Scheller Blakely, Sokoloff, Taylor & Zafman LLP

20070030967 - Addressing of groups of broadcast satellite receivers within a portion of the satellite footprint: A method and system enables the selective addressing of groups of broadcast receivers within part of a satellite footprint. It uses two satellites having a common transmission band to transmit respective signals, and at receivers in the footprint the phases of the signals received from the two satellites are compared.... Agent: Daly, Crowley, Mofford & Durkee, LLP

20070030968 - Digital processing disruption stems: A method and apparatus are described for modifying an analogue video signal to impair its conversion to a digital signal by an analogue to digital converter. The resulting modified signal may prevent the operation of the analogue to digital converter altogether, or even if a digital signal can be output... Agent: Flynn Thiel Boutell & Tanis, P.C.

20070030969 - Broadcast receiving apparatus and channel changing method thereof: In a broadcast receiving apparatus and a channel changing method in a broadcast receiving apparatus, broadcast data corresponding to a selected broadcast program, included in a channel broadcast signal received as a result of broadcast program selection, is descrambled based on previously stored descrambling control information, thereby shortening scrambling time... Agent: Robert E. Bushnell

20070030970 - Digital signature system: A method of a signer affixing a physical manifestation of a digital signature to a hard-copy document includes inputting a digital copy of the hard-copy document into a secure hash function stored on a computer to produce a message digest. The message digest and a private key of the signer... Agent: Clifford P. Kelly Alix, Yale & Ristas, LLP

20070030971 - Free-space quantum communication device with atomic filters: The present invention discloses a free-space quantum communication device with atomic filters which are used in the field of quantum cryptography. The free-space quantum communication device of the present invention includes a beam splitter (2), two λ/2 wave plates (3,10), a λ/4 wave plate (4), two polarization beam splitters (5,11),... Agent: Clements Walker

20070030972 - Cryptographic system and method for geolocking and securing digital information: A method and apparatus for controlling access to digital information utilizes a location identity attribute that defines a specific geographic location. The location identity attribute is associated with the digital information such that the digital information can be accessed only at the specific geographic location. The location identity attribute further... Agent: Brian M. Berliner O'melveny & Myers LLP

20070030973 - Limiting services based on location: A system for authorizing services in wireless devices based on a type of service requested and a location of the wireless device. For example, in a wireless telephony system, when a session is set up via an Internet Protocol-based system, an application server queries a location service for the location... Agent: Woodcock & Washburn LLP

20070030974 - Information sending system, information sending device, information receiving device, information distribution system, information receiving system, information sending method, information receiving method, information distribution method, apparatus, send: Content data encrypted with a content key, the content key encrypted with an individual key specific to an information sending device, and the individual key encrypted with a distribution key that is updated in a predetermined cycle, and supplied are sent to an information receiving device, and the information receiving... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20070030975 - Method for accelerating the computational speed of a computer algorithm: A new technique for accelerating the computational speed of a computer algorithm is provided. The inventive technique can be applied to an encryption algorithm, such as an RSA algorithm, for example. A method and system for effecting secure information communications utilizing an accelerated information encryption algorithm is also contemplated.... Agent: Kramer Levin Naftalis & Frankel LLP Intellectual Property Department

20070025550 - Security value estimating apparatus, security value estimating method, and computer-readable recording medium for estimating security value: A security value estimating apparatus for estimating a security value of an unregistered data item includes a primary data generating part for generating various types of primary data based on the unregistered data item, a data amount calculating part for calculating the value of the data amount of each type... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070025551 - Quantum key distribution apparatus & method: A quantum key distribution (QKD) system is provided that makes use of a quantum signal of polarized photons and comprises a QKD device and complimentary QKD apparatus. The QKD device has a QKD subsystem comprising one of a QKD transmitter and receiver for inter-working with a complimentary QKD receiver or... Agent: Hewlett Packard Company

20070025552 - Authentication of data transmitted in a digital transmission system: A method of authenticating data transmitted in a digital transmission system, in which the method comprises the steps, prior to transmission, of determining at least two encrypted values for at least some of the data, each encrypted value being determined using a key of a respective encryption algorithm, and outputting... Agent: Osha Liang L.L.P.

20070025553 - Authentication of data transmitted in a digital transmission system: A method of authenticating data transmitted in a digital transmission system, in which the method comprises the steps, prior to transmission, of determining at least two encrypted values for at least some of the data, each encrypted value being determined using a key of a respective encryption algorithm, and outputting... Agent: Osha Liang L.L.P.

20070025554 - Remote control association methodology: An infrared remote device, such as a remote control, provides an encryption key to wireless radio frequency (RF) capable devices for use in wireless RF communications. The encryption key is provided using infrared transmissions. The infrared remote device may generate the encryption key and transmit the encryption key to other... Agent: Christie, Parker & Hale, LLP