Cryptography inventions 04/07

20070092075 - Image public key generation method: A method for generating an image public key uses a predefined image as an input to the RSA algorithm to calculate a public key that includes the predefined image information. Translating the public key into an image generates an image public key. Therefore, the method allows a user to use... Agent: Thomas E. Sisson Jackson Walker, LLP

20070092076 - Initialization method and termination method for scrambling transport stream: The present invention provides a system, method and apparatus for encrypting/decrypting plain data/cipher text having lengths not equal to a multiple of a data chunk of a block cipher algorithm. The present invention enables plain data having a length that is greater than or less than one data chunk to... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070092077 - Recording apparatus, reproduction apparatus, data processing apparatus, recording and reproduction apparatus and data transmission apparatus and corresponding methods: An encryptor is provided for encrypting AV data sent from an interface. A controller controls recording of the encrypted AV data by controlling a recorder for recording the encrypted AV data in a magnetic disk. The recorder is controlled by the controller so as to reproduce the data recorded on... Agent: Ratnerprestia

20070092078 - Recording apparatus, reproduction apparatus, data processing apparatus, recording and reproduction apparatus and data transmission apparatus and corresponding methods: An encryptor is provided for encrypting AV data sent from an interface. A controller controls recording of the encrypted AV data by controlling a recorder for recording the encrypted AV data in a magnetic disk. The recorder is controlled by the controller so as to reproduce the data recorded on... Agent: Ratnerprestia

20070092079 - System and method for the assertion and identification of rights information in an analog video signal: A method for processing an analog video signal that represents a work for which rights information is asserted. The signal includes a rights assertion mark (RAM) in the video portion of the signal within the visible picture such that capture of the picture will include the mark. The signal also... Agent: Gottlieb Rackman & Reisman PC

20070092080 - Wireless communications validation system and method: A wireless communications validation system comprises a validation module configured to determine an identity of an antenna disposed in a computer system and an identity of a wireless module disposed in the computer system, the validation module configured to validate permissible combination of the antenna with the wireless module.... Agent: Hewlett Packard Company

20070092081 - Content reproduction apparatus: A content reproduction apparatus (1) which reproduces digital contents, including a device key storage unit (110) which holds a device key (110a) specific to the content reproduction apparatus (1) in a manner which does not allow access from outside the content reproduction apparatus (1), a device ID storage unit (19)... Agent: Wenderoth, Lind & Ponack L.L.P.

20070092082 - Digital rights management security mechanism for use in a wireless communication apparatus: A wireless communication apparatus includes a processor core and a security unit. The processor core may receive digital content encrypted with a first encryption key and may store the encrypted digital content within a memory unit of the wireless communication apparatus. The processor core may also receive a second encryption... Agent: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.

20070092083 - Qkd system with synchronization channel verification: Systems and methods for verifying error-free transmission of the synchronization (“sync”) channel of a QKD system are disclosed. The method includes sending a first pseudo-random bit stream (PRBS) over the sync channel from Alice to Bob, and verifying at Bob the accurate transmission of the first PRBS. The method also... Agent: OpticusIPLaw, PLLC

20070086588 - Saving and retrieving data based on symmetric key encryption: In accordance with certain aspects, data is received from a calling program. Ciphertext that includes the data is generated, using a symmetric cipher, in a manner that allows only one or more target programs to be able to obtain the data from the ciphertext. In accordance with other aspects, a... Agent: Lee & Hayes PLLC

20070086586 - Semi-public white-box cipher: A computer-implemented system and method for configuring and operating a white-box cipher is disclosed. In one implementation, the system employs a method for configuring pseudorandom data derived from a key to perform key-scheduling functionality associated with rounds of the cipher. Additionally, the system employs a method for generating white-box executable... Agent: Lee & Hayes PLLC

20070086587 - System and method for exchanging a transformed message with enhanced privacy: A system and method for exchanging a transformed message with enhanced privacy is presented. A set of input messages is defined. A set of output messages is defined. A message is selected from the input messages set. One or more words in the selected message are efficiently transformed directly into... Agent: Cascadia Intellectual Property

20070086589 - Digital broadcasting conditional access system and method: Provided is a digital broadcasting conditional access system and method, including a digital broadcasting transmitter and a digital broadcasting receiver. The transmitter scrambles a broadcasting signal using a control key, generates broadcasting viewing restriction information and broadcasting viewing entitlement information, and transmits the scrambled broadcasting signal after incorporating the broadcasting... Agent: Dilworth & Barrese, LLP

20070086590 - Method and apparatus for establishing a security association: A method for establishing a security association between a client and a service node for the purpose of pushing information from the service node to the client, where the client and a key server share a base secret. The method comprises sending a request for generation and provision of a... Agent: Nixon & Vanderhye, PC

20070086591 - Method and apparatus for establishing a security association: A method for establishing a security association between a client and a service node for the purpose of pushing information from the service node to the client, where the client and a key server share a base secret. The method comprises sending a request for generation and provision of a... Agent: Nixon & Vanderhye, PC

20070086592 - Determining the reputation of a sender of communications: A method and system for determining the reputation of a sender for sending desirable communications is provided. The reputation system identifies senders of communications by keys sent along with the communications. The reputation system then may process a communication to determine whether it is a desirable communication. The reputation system... Agent: Perkins Coie LLP/msft

20070086593 - System and method for delivering encrypted information in a communication network using location indentity and key tables: Access to digital data is controlled by encrypting the data in such a manner that, in a single digital data acquisition step, it can be decrypted only at a specified location, within a specific time frame, and with a secret key. Data encrypted in such a manner is said to... Agent: Brian M Berliner, Esq O'melveny & Myers, LLP

20070081665 - Data delivery system and data communication terminal: The data delivery system is adapted to be able to communicate via a network with a data communication terminal adapted to be able to access first portable storage media that stores content data to be able to be ripped to digital recording equipment and second portable storage media adapted to... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070081664 - Method for classifying private information securely: e

20070081666 - Transmitted information verification device and transmitted information verification method: A transmitted information verification device of the invention includes: a transmitted information capture module that captures encrypted transmission object information transferred on a network, as encrypted transmitted information; a comparative information generation module that encrypts transmission object information, which is included in an encryption record created by a managed device,... Agent: Sughrue Mion, PLLC

20070081667 - User authentication based on asymmetric cryptography utilizing rsa with personalized secret: A method for authenticating a user to a computer system is disclosed, comprising using a first input and a second input in producing a digital signature in response to a challenge. The digital signature is valid when the first input matches a personalized secret and the second input matches a... Agent: Rosenberg, Klein & Lee

20070081668 - Enciphering method: A block cipher mode of operation implements a block cipher with an arbitrary block length and provides output ciphertext that is always the same size as the input plaintext. The mode can provide the best possible security in systems that cannot allow data expansion, such as disk-block encryption and some... Agent: Hickman Palermo Truong & Becker, LLP

20070081669 - Information processing apparatus, information processing method, and computer program: An information processing apparatus is provided. The information processing apparatus includes a cryptographic processor configured to generate encrypted data associated with a content management unit by executing encryption using a unit key associated with the content management unit, the content management unit being defined as a unit for controlling usage... Agent: Bell, Boyd & Lloyd, LLP

20070081670 - Data transfer device: A data transfer device for transferring data to and/or from a removable data storage item, wherein data are encrypted or decrypted during data transfer using a feature of the removable data storage item.... Agent: Hewlett Packard Company

20070081671 - Controlling deactivation of rfid tags: An RFID tag includes a transceiver for communicating with a tag reader; memory for storing a deactivation string, an encrypted deactivation string created externally to the tag by encrypting the deactivation string, and a trial string created externally to the tag by decrypting the encrypted deactivation; and logic for comparing... Agent: Ibm Corporation

20070081673 - Ccm encryption/decryption engine: A system 10 for processing data packets according to a CCMP protocol is provided. The system includes a software component 40 operable to form a nonce and an MD according to a CCMP protocol. The system includes a hardware component 20 operable to receive the nonce and AAD and encrypt... Agent: Texas Instruments Incorporated

20070081672 - Methods to enhance wlan security: A method is provided for enhancing WLAN security performed by a wireless terminal, comprising steps of: reading the key stored in the ID card; requesting the wireless access point for authenticating identification according to the read key and the corresponding encryption algorithm; accessing the WLAN if the authentication succeeds. Said... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070076863 - Device and method for communication with the aid of an encrypted code table: In order to maintain the required security, an interface specific code is stored in an encrypted manner in a code memory which is integrated in a communication processor. In the event of an error in the communication processor, the original code is not transmitted but, if necessary, the encrypted code... Agent: Harness, Dickey & Pierce, P.L.C

20070076864 - Cryptographic system and method for encrypting input data: A cryptographic system for encrypting input data in accordance with an encryption algorithm having a repeated-round structure may include an encryption unit updating and storing encrypted data in accordance with the encryption algorithm in each given round, and outputting the encrypted data after executing the encryption for a given number... Agent: Harness, Dickey & Pierce, P.L.C

20070076865 - Hashing byte streams into elements of the shafarevich-tate group of an abelian variety: Systems and methods for cryptographically processing data as a function of a Cassels-Tate pairing are described. In one aspect, a Shafarevich-Tate group is generated from an abelian variety. A Cassels-Tate pairing is determined as a function of elements of the Shafarevich-Tate group. Data is then cryptographically processed as a function... Agent: Lee & Hayes PLLC

20070076866 - Secure interface for versatile key derivation function support: Improper re-use of a static Diffie-Hellman (DH) private key may leak information about the key. The leakage is prevented by a key derivation function (KDF), but standards do not agree on key derivation functions. The module for performing a DH private key operation must somehow support multiple different KDF standards.... Agent: Blake, Cassels & Graydon LLP Box 25

20070076867 - System and method for securing document transmittal: The present invention is directed to a system and method for secure transmission of electronic document data on a network. The method begins with the receipt of user identification data associated with the identity of a user of document processing devices on the associated network. A password key, composed of... Agent: Tucker, Ellis & West LLP

20070076869 - Digital goods representation based upon matrix invariants using non-negative matrix factorizations: Described herein is one or more implementations that produce a new representation of a digital good (such as an image) in a new defined representation domain. In particular, the representations in this new domain are based upon matrix invariants. More particularly still, the specific matrix invariants described herein include non-negative... Agent: Lee & Hayes PLLC

20070076868 - Method and apparatus for image encryption and embedding and related applications: An image encryption method is described for encrypting an images using an encryption key. The encryption method includes dividing the image into pixel groups and shifting the location of the pixel groups according to an encryption key, and reordering the bits of the pixel values of the image according to... Agent: Ying Chen

20070076870 - Information processing apparatus, information recording medium manufacturing apparatus, information recording medium, method and computer program: To provide an apparatus, a recording medium and a method for effectively preventing unauthorized use of a content. A content containing broken data different from correct content member data is recorded on an information recording medium. Furthermore, transform data, as the correct member data, to be substituted for the broken... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070076871 - Quantum key distribution: Apparatus and methods for establishing a secret key to encrypt and share data using quantum signals represented by an equiangular spherical code and using classical signals in authenticating the key.... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070076872 - Method and system for detecting and preventing unauthorized signal usage in a content delivery network: A method and system for controlling unauthorized signal usage in a content delivery network, such as a television network, is described. The method and system acquires at least two signal usage records for a receiver of the content, evaluates the at least two signal usage records for indicia of usage... Agent: Townsend And Townsend And Crew, LLP

20070076873 - Data processing device: A data processing device of the invention has an ID creator unit (300) which adds ID information which is set by a CPU and the number of sectors, and outputs a result of the addition as ID information; a scramble SEED value table (103) which produces an initial scramble SEED... Agent: Mcdermott Will & Emery LLP

20070076874 - System and method for encrypting and decrypting document reproductions: The present invention is directed to a system and method for secure document transmission. A sender selects a portion of an original document containing confidential information using a highlighter, bracketing, underlining, or other identifying marks. The original document is then scanned to generate an electronic version, which is subject to... Agent: Tucker, Ellis & West LLP

20070076875 - Wireless communication system and authentication method and communication control method in wireless communication system: A wireless communication apparatus which wirelessly communicates with other communication apparatus or apparatuses, comprises a setting unit that sets a maximum number of other communication apparatus or apparatuses up to which the wireless communication apparatus authenticates to perform wireless communication, a storage unit that stores said maximum number set by... Agent: Fitzpatrick Cella Harper & Scinto

20070076878 - Any-point-to-any-point (\"ap2ap\") quantum key distribution protocol for optical ring network: A QKD node in an optical ring network enables distribution of quantum keys between node pairs having neither photon sources nor photon detectors. The QKD node transmits corresponding pulses P1 and P2 into the ring network in opposing directions. A first node (Alice) of the pair randomly modulates pulse P1... Agent: Fetherstonhaugh - Smart & Biggar

20070076881 - Exclusive encryption: An exclusive encryption system is established using multiple computing devices. The exclusive encryption system allows for the exclusion of certain plaintext (e.g., by one of the computing devices) and ciphertext (e.g., by another of the computing devices) while at the same time maintaining the privacy created by the encryption (e.g.,... Agent: Lee & Hayes PLLC

20070076882 - Network component for a communication network, communication network, and method of providing a data connection: This invention relates to a network component (11-16) for a communication network (1) in which multiple communication interfaces (31-37) are connected for mutual data exchange via a transmission network (20) and in which said network component (11-16) can be placed between at least one assigned communication interface (31-37) and the... Agent: Davidson Berquist Jackson & Gowdey LLP

20070076880 - Secure digital transmission: A cryptographic device comprises a memory pre-programmed with cryptographic key, a data processor connected to the memory, and an interface for connecting the interface to a computer.... Agent: Kenyon & Kenyon LLP

20070076877 - Shared key encryption using long keypads: Methods of securely communicating a message from a first terminal to a second terminal include generating a keypad including a random sequence of bits having a length L, encrypting the message at the first terminal using a bit string beginning at an offset O in the keypad, and transmitting the... Agent: Myers Bigel Sibley & Sajovec

20070076876 - System for the compression, encoding, authoring, and encryption of data and media the storage of such content in external mobile telephone or personal digital assistant compatible memory devices: A unique combination of compression, encoding, authoring, and encryption software practices to store large data and media files onto external mobile handset and PDA compatible memory devices. The unique combination allows for a copy protected handset and PDA compatible external memory device with pre-installed data and media. A multimedia player... Agent: David A. Kalow, Esq. Kalow & Springut LLP

20070076879 - System, method and computer program product for authenticating a data agreement between network entities: A method for authenticating a data agreement between first and second network entities can include the first network entity committing to the agreed data value, and transmitting the committed data value and a first random value to the second network entity. The first network entity can receive a second random... Agent: Alston & Bird LLP

20070076883 - Any-point-to-any-point (\"ap2ap\") quantum key distribution protocol for optical ring network: Apparatus for distributing a quantum key between nodes Alice and Allie, comprising a coupler that splits generated photon pulses into first and second pulses P1 and P2; and an interface that transmits the P1's and P2's into a network. The P1's are received after modulation by Alice with respective phases... Agent: Fetherstonhaugh - Smart & Biggar

20070076884 - Quantum key distribution system: A method is provided for distributing quantum cryptographic keys. The method includes receiving a first quantum signal from an initial quantum key generating transmitter. Following correspondence with the initial quantum key generating transmitter, a first quantum key is generated. A second quantum signal is transmitted to a recipient quantum key... Agent: Verizon Patent Management Group

20070076885 - Methods and apparatus for providing an insertion and integrity protection system associated with a wireless communication platform: Embodiments of methods and apparatus for providing an insertion and integrity protection system associated with a wireless communication platform are generally described herein. Other embodiments may be described and claimed.... Agent: Intel Corporation C/o Intellevate, LLC

20070076886 - Network device, network system and method for updating a key: When conducting encryption key update, each of the network device successively causes transition among an initial state in which only data encrypted using an old encryption key used before the update can be transmitted and received, a state in which both data encrypted using the old encryption key and data... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070076887 - Double phase encoding quantum key distribution: A laser pulse representing a bit of a quantum key is split into two pulses. In addition to known round trip phase encoding schema, a secret phase key is modulated into one of the two pulses: P1 and P2. The secret phase key is used to identify whether the returning... Agent: Ralph A. Dowell Of Dowell & Dowell P.C.

20070076888 - Double phase encoding quantum key distribution: A method of distributing a quantum key from a sender to a recipient. The recipient generates a pulse having multiple photons; splits the pulse into first and second sub-pulses; phase modulates the first sub-pulse with a secret key; and transmits both the phase-modulated first sub-pulse and the second sub-pulse to... Agent: Ralph A. Dowell Of Dowell & Dowell P.C.

20070076889 - Pre-generation of generic session keys for use in communicating within communications environments: Generic session keys are pre-generated and stored in a pool of session keys for later use in communicating within a communications environment. The session keys that are stored in the pool are pre-encrypted with the private key of the entity storing those keys. To communicate between entities, a pre-encrypted session... Agent: Heslin Rothenberg Farley & Mesiti P.C.

20070076890 - Current flattening and current sensing methods and devices: Flattening total current consumption of system having processing core and power supply input by current sensing within system at power supply input and controlling system current consumption such that system current is reduced if over reference current threshold, and increased if below reference current threshold. Inject additional current through digital... Agent: Ralph A. Dowell Of Dowell & Dowell P.C.