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Cryptography December patent applications/inventions, industry category 12/09

20090323929 - Computer-readable recording medium recording program and apparatus for encryption/decryption, apparatus for multiplication in extension field: There is provided a computer-readable recording medium recording a program for encryption/decryption, an apparatus for encryption/decryption, an apparatus for multiplication in an extension field, that enable to perform high speed multiplication processing, while allowing the selection of arbitrary key lengths. In multiplying two elements A={a0, a1, a2, . . .... Agent: Oliff & Berridge, PLC

20090323931 - Data processing hash algorithm and policy management: Methods and associated systems for processing data are disclosed. A hashing function sequentially processes a hash key to generate a hash value. A policy management system processes packets according to defined policies.... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20090323930 - High-efficient encryption and decryption processing method for implementing sms4 algorithm: An encrypting/decrypting processing method for implementing SMS4 algorithm in high efficiency is provided. After preparing constant array, input external data into register section, firstly make primary data conversion and then make secondary data conversion, finally repeat data conversion course until complete all specified data conversion courses and obtain processing result... Agent: Cantor Colburn, LLP

20090323928 - Item tracing with supply chain secrecy using rfid tags and an identity-based encryption scheme: A method for tracing an item may include encrypting item information using an identity-based encryption scheme with a batch number for an item as an encryption key and communicating the encrypted item information for storage on a radio frequency identification (RFID) tag for attachment to the item.... Agent: Brake Hughes Bellermann LLP

20090323927 - Mechanism for chained output feedback encryption: In one embodiment, a mechanism for chained output feedback encryption is disclosed. In one embodiment, a method includes generating a keystream at a block cipher encryption module with inputs of a key and the result of an exclusive-or (XOR) operation on two or more previous keystream outputs, and producing ciphertext... Agent: Red Hat/bstz Blakely Sokoloff Taylor & Zafman LLP

20090323933 - Exponentiation method using multibase number representation: A method of scalar multiplication for use in elliptic curve-based cryptosystems (ECC) is provided. Scalars are represented using a generic multibase form combined with the non-adjacency property, which greatly reduces the nonzero density in the representation. The method allows for flexibly selecting an unrestricted number of bases and their weight... Agent: Garvey Smith Nehrbass & North, LLC

20090323932 - Method and apparatus for encrypting data to facilitate resource savings and detection of tampering: One embodiment of the present invention provides a system that facilitates encrypting data. During operation, the system receives unencrypted data to be encrypted. Next, the system preprocesses the unencrypted data to create preprocessed unencrypted data, wherein preprocessing the unencrypted data involves generating a salt (wherein the salt facilitates in determining... Agent: Pvf -- Oracle International Corporation C/o Park, Vaughan & Fleming LLP

20090323934 - Method for calculating compressed rsa moduli: A method for generating a compressed RSA modulus, allowing up to two thirds of the bits of a modulus N to be fixed. N has a predetermined portion NH, which comprises two parts Nh and Nm. A candidate RSA modulus that shares the Nh part is generated, and the candidate... Agent: Robert D. Shedd, Patent Operations Thomson Licensing LLC

20090323935 - Pseudo public key encryption: According to the present invention, a secret key cryptosystem and tamper-proof hardware are used to realize a pseudo-public key cryptosystem at a low cost. A trap-door one-way function is substantially realized with the use of tamper-proof hardware. Each user performs communication using equipment provided with hardware having the same capabilities... Agent: Ibm - Yor Shimokaji & Associates, P.C.

20090323937 - Multi-level data encryption and decryption system and method thereof: A multi-level data encryption and decryption system and a method thereof are provided. The method includes dividing a data into a plurality of sub-data blocks corresponding to a plurality of user levels. The method also includes generating an encryption key for each level according to a level generation key and... Agent: Jianq Chyun Intellectual Property Office

20090323936 - System, method, and service for performing unified broadcast encryption and traitor tracing for digital content: A unified broadcast encryption system divides a media key tree into S subtrees, divides digital content into segments, and converts some of the segments into variations; the number of segments and variations is q. The system subdivides each of the subtrees into q/|S| subdivided subtrees, assigns a key media variant... Agent: Ibm - Arc Shimokaji & Associates, P.C.

20090323939 - Data transmission method and terminal: Embodiments of the present invention provide a data transmission method, a Coaxial-Cable Network Unit (CNU) and a Coaxial-cable Line Terminal (CLT). The method is applied to a point-to-multipoint Coaxial-cable Network, wherein the point-to-multipoint Coaxial-cable Network includes a Coaxial-cable Line Terminal, CLT, and a plurality of Coaxial-Cable Network Units, CNUs; the... Agent: Ladas & Parry LLP

20090323938 - Mechanism for transport-safe codings for cryptographic use: In one embodiment, a mechanism for transport-safe codings for cryptographic use is disclosed. In one embodiment, a method for transport-safe coding for cryptographic use includes converting an input data stream into index values associated with “n” printable characters, wherein “n” is a radix associated with a base-“n” coding scheme and... Agent: Red Hat/bstz Blakely Sokoloff Taylor & Zafman LLP

20090323943 - Data transmission system: A cipher key is generated by first information shared in secrete between a data transmitting unit 10 and a data receiving unit 20, second information derived from duplication control information of transmit data and third information which is time change information shared between the data transmitting unit and the data... Agent: Frommer Lawrence & Haug

20090323940 - Method and system for making information in a data set of a copy-on-write file system inaccessible: Information in a data set of a copy-on-write file system may be made inaccessible. A first key for encrypting a data set of a copy-on-write file system is generated and wrapped with a second key. An encrypted data set is created with the first key. The wrapped first key is... Agent: Brooks Kushman P.C. / Sun / Stk

20090323942 - Method for page- and block based scrambling in non-volatile memory: A method and system for programming and reading data with reduced read errors in a memory device. In one approach, date to be written to the memory device is scrambled using a first pseudo random number which is generated based on a page of the memory device to which the... Agent: Vierra Magen/sandisk Corporation

20090323941 - Software copy protection via protected execution of applications: Methods and apparatus to provide a tamper-resistant environment for software are described. In some embodiments, procedures for verifying whether a software container is utilizing protected memory and is associated with a specific platform are described. Other embodiments are also described.... Agent: Caven & Aghevli LLC C/o Cpa Global

20090323944 - Method of public key generation: A potential bias in the generation of a private key is avoided by selecting the key and comparing it against the system parameters. If a predetermined condition is attained it is accepted. If not it is rejected and a new key is generated.... Agent: Blake, Cassels & Graydon LLP

20090323946 - Encryption and utilization of hard drive content: Examples of a system, method, and apparatus for encrypting and recording content are presented. When content is recorded to storage media, the content is encrypted with a content instance key. This content instance key is encrypted with the public key of a first set-top box and a duplicate of the... Agent: Lewinski Law Group LLC/cisco Systems, Inc.

20090323945 - Image display device: An authentication/decryption unit authenticates and decrypts video signals received from a video signal output device. An open-condition detector detects the open condition of a cabinet. A memory stores therein one of a first flag indicating that an authentication operation of the authentication/decryption unit is enabled and a second flag indicating... Agent: The Nath Law Group

20090323947 - Method of confirming drive unique key and optical disc recording/reproducing apparatus: When the encryption key unique to the drive apparatus is mounted, a flag indicating the presence of the encryption key is turned on. In other case, when receiving a command to confirm the presence of the encryption key from the outside of the apparatus, the flag which is turned on... Agent: Mcdermott Will & Emery LLP

20090323948 - Stream generation method, broadcast receiving apparatus, and display method: Provided is a system far receiving a initialization packet containing an initial vector for initializing stream encryption algorithm and an identifier of a key for decrypting an encrypted stream, initializing a decryption modules and decrypting the encrypted stream, wherein the system stores an identifier of a key which is needed... Agent: Hogan & Hartson L.L.P.

20090323949 - Method of transmitting an additional piece of data to a reception terminal: o

20090323950 - Image encryption/decryption apparatus, method and program: An image encryption apparatus encrypts a digital image by specifying a partial region from the digital image, converting the selected partial region into a processing image based on an encryption key, and specifying a position of the partial region by regularly converting a pixel value of the processing image.... Agent: Staas & Halsey LLP

20090323951 - Process, circuits, devices, and systems for encryption and decryption and other purposes, and process making: A wireless communications device (110) has a digital section (800) and a radio frequency section (840). The digital section (800) does setup and execution on a set of data in at least first and second threads concurrently in a series of overlapping iterations by dividing the set of data into... Agent: Texas Instruments Incorporated

20090323952 - Time of day encryption using tdma timing: Embodiments of the invention provide for encryption and decryption of data in a TDMA network using TDMA time values. In some embodiments, TDMA time values can be transmitted to terminals from a network controller using a burst time plan. These TDMA time values along with other data and/or counters can... Agent: Townsend And Townsend And Crew LLP Viasat, Inc. (client #017018)

20090323953 - System and method of decoupling and exposing computing device originated location information: A system and method is provided to determine location information of a portable computing device and, in particular, to a secure and scalable system and method of decoupling and exposing handset originated location information to third parties. The system includes a location platform to determine location information of a remote... Agent: Greenblum & Bernstein, P.L.C

20090323954 - Internet protocol telephony security architecture: A secure Internet Protocol (IP) telephony system, apparatus, and methods are disclosed. Communications over an IP telephony system can be secured by securing communications to and from a Cable Telephony Adapter (CTA). The system can include one or more CTAs, network servers, servers configured as signaling controllers, key distribution centers... Agent: Motorola, Inc. Law Department

20090323955 - Data transmitting apparatus and data receiving apparatus: In secret communication using a Y-00 protocol, provided is a data communication apparatus which realizes reduction in a random number generation speed by using a plurality of random number generators, and which also ensures security. The data communication apparatus includes: a plurality of random number generation sections 111a to 111f... Agent: Wenderoth, Lind & Ponack L.L.P.

20090323956 - Encryption device, program, and method: Disclosed is an encryption device for generating a pseudo-random number based on a secret key and generates an encrypted text by applying the pseudo-random number sequence to a plain text, uses, an internal state in accordance with a state based on a permutation of a sequence of a finite number... Agent: Mr. Jackson Chen

20090323957 - Scrambling under an extended physical-layer cell identity space: A method for wireless communications is provided. The method includes determining a set of physical layer cell identities and analyzing a current set of scrambling sequences. The method increases the current set of scrambling sequences to account for increases in the physical layer cell identities.... Agent: Qualcomm Incorporated

20090323961 - Data encryption and/or decryption by integrated circuit: In an embodiment, an apparatus is provided that may include an integrated circuit to be removably communicatively coupled to at least one storage device. The integrated circuit of this embodiment may be capable of encrypting and/or and decrypting, based at least in part upon a first key, data to be,... Agent: The Law Offices Of Christopher K. Gagne C/o Cpa Global

20090323958 - Extending a secret bit string to safeguard the secret: A method and system extends a secret bit string to safeguard the secret. In one embodiment, the method comprises adding a secret bit string of length s to a product of two random bit strings using arithmetic defined for polynomials over GF(2) to produce an extended bit string. The extended... Agent: Red Hat/bstz Blakely Sokoloff Taylor & Zafman LLP

20090323960 - Method and system for hiding the decryption key in a dispersive way: A method for hiding the decryption key in a dispersive way is disclosed. A decryption key corresponding to content to be accessed is decomposed into at least two partial decryption keys, comprising first partial decryption key and second partial decryption key. The first partial decryption key is stored in a... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090323959 - Method for producing two-dimensional code reader for reading the two-dimensional code: A method of producing a two-dimensional code having a code area in which data codes coded as codewords are mapped. First type of data codes is mapped in the code area. The first type of data codes are coded as the codewords and indicating data to be disclosed. An end... Agent: Posz Law Group, PLC

20090323963 - Methods and media for recovering lost encryption keys: An information handing system provides a method for recovering encryption keys. The method includes providing a first recording medium of a plurality of recording media in a first drive of a plurality of drives. A first key is requested from a primary key manager (PKM) associated with the first drive,... Agent: Andrea E. Tran Pramudji Wendt & Tran, LLP

20090323962 - Secure multicast content delivery: In one embodiment, a method for establishing a secure multicast channel between a service provider and a terminal is provided. A request is received from the service provider for a configuration of the terminal. A configuration of the terminal at a first time is sent to the service provider. A... Agent: Beyer Law Group LLP

20090323964 - System and method of updating key based on communication cost and security damage cost: A system and method of updating a key based on communication and security damage costs are provided. The key updating system for group communication between a plurality of group members, includes a key update cycle determining unit to determine a key update cycle based on a communication cost and a... Agent: North Star Intellectual Property Law, PC

20090323966 - Method and system for enhancing data encryption using multiple-key lists: A method for enhancing data encryption using multiple-key lists is disclosed. A first multiple-key list and a second multiple-key list for a decryption key are created, wherein each multiple-key list comprises plural partial decryption keys. Content to be accessed is encrypted using an encryption key corresponding to the decryption key.... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090323967 - Production of cryptographic keys for an embedded processing device: A system and method for producing cryptographic keys for use by an embedded processing device within a manufactured product. A pseudo random number generator is seeded with entropy data gathered by the embedded device, and the result is used to generate a public-private key pair. The process can be carried... Agent: General Motors Corporation C/o Reising, Ethington, Barnes, Kisselle, P.C.

20090323965 - Systems and methods for monitoring performance of a communication system: Monitoring the performance of communication systems is an important part of network operations. In one aspect the invention provides a method for monitoring the performance by collecting data pertaining to a mobile terminal accessing the system. In some embodiments, the method includes receiving an identifier for identifying the mobile terminal;... Agent: Rothwell, Figg, Ernst & Manbeck, P.C.

20090323968 - Descrambling apparatus and descrambling method in a tv system: A descrambling apparatus and a descrambling method to descramble a scrambled data in a receiver of a digital TV system are provided. The descrambling apparatus comprises: a receiving module, a storing module, a comparator, a retrieving module and a descrambler. The receiving module receives a packet, wherein the packet comprises... Agent: Hayes Soloway P.C.

20090323969 - Communication method, communication apparatus, and integrated circuit: An object of the present invention is to realize a communication apparatus, a communication method, and an integrated circuit, capable of performing a key updating operation, while having resistibility with respect to noises and DoS attacks without increasing a frequency bandwidth. The present invention is such a communication apparatus for... Agent: Dickinson Wright PLLC James E. Ledbetter, Esq.

20090323970 - System and method for protecting data in a secure system: A system for protecting data in a security system generates and encodes a backup key for encoding long-lived secrets. The system generates a distribution plan for distributing cryptographic splits of the encoded backup key to selected persons based on geographic and organizational diversity. The distribution plan specifies a number M... Agent: Ibm - Arc Shimokaji & Associates, P.C.

20090323972 - Privacy-preserving location tracking for devices: A privacy-preserving device-tracking system and method to assist in the recovery of lost or stolen Internet-connected mobile devices. The function of such a system seem contradictory, since it is desirable to hide a device's legitimately-visited locations from third-party services and other parties to achieve location privacy, while still enabling recovery... Agent: Law Offices Of Ronald M Anderson

20090323971 - Protecting independent vendor encryption keys with a common primary encryption key: Apparatus, systems and methods for protection of independent vendor encryption keys with a common primary encryption key are disclosed including an apparatus including memory to store a plurality of encrypted vendor keys, memory to store a primary key; and cipher logic to use the primary key to decrypt an encrypted... Agent: Intel Corporation C/o Cpa Global

20090316884 - Data encryption method, encrypted data reproduction method, encrypted data production device, encrypted data reproduction device, and encrypted data structure: An encrypted data production device (101) encrypts encryption object data including a plurality of frame data in a cipher block chaining mode using a cipher chaining unit of an arbitrary data length. A frame length/cipher chaining analysis section (114) produces, from AV data management information, additional information headers, each of... Agent: Mcdermott Will & Emery LLP

20090316885 - Natural language dependent stream ciphers: A natural language dependent stream cipher is provided to increase complexity of stream cipher encryption. In one aspect, a message is received from a sender as an input in a first natural language and is translated into a selected second natural language. A binary Unicode representation of the input in... Agent: Patton Boggs LLP

20090316887 - Database encryption and query method keeping order within bucket partially: A database encryption and query method keeping an order within a bucket partially, which encrypts and stores numeric data in a database, includes calculating a relative value of a plaintext within a bucket to which the plaintext is allocated; generating a first key value by producing a random number within... Agent: Ladas & Parry LLP

20090316886 - Fine-grained forward-secure signature scheme: The presented methods form the basis of a forward-secure signature scheme that is provably secure. Moreover, the presented methods form also the basis of a fine-grained forward-secure signature scheme that is secure and efficient. The scheme allows to react immediately on hacker break-ins such that signatures from the past still... Agent: Michael Buchenhorner, P.A.

20090316888 - Playing method and device of digital right managing multimedia: A playing method of digital right managing multimedia is disclosed, in which the files of DRM multimedia to be played take a Page as a playing basic unit, when the operation of fast-forward/fast-reverse is triggered, the method comprises: determining time of fast-forward/fast-reverse; determining number of Pages of fast-forward/fast-reverse based on... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20090316889 - Hardware-based protection of secure data: Computer-readable media, computerized methods, and computer systems for protecting secure data by writing content of the secure data to a protected memory segment are provided. Initially, streaming media is received from a media-reading device and portions of the streaming media are identified as secure data. A data-management process to protect... Agent: Shook, Hardy & Bacon L.L.P. (c/o Microsoft Corporation)

20090316891 - Content reproduction apparatus, recording apparatus, recording and reproduction apparatus, and reproduction method: In an apparatus of reproducing contents in which an encryption key is to be changed at predetermined intervals for copyright protection purpose, the contents can be reproduced or specially reproduced with no problem such as fast forward, and fast rewind. For special reproduction, data and key information needed therefor are... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090316890 - Text based anti-piracy system and method for digital cinema: A system and method for generating and processing forensic information for digital cinema content in an efficient and cost-effective manner while maintaining the integrity and quality of the digital cinema images. Customized forensic content, which includes hidden anti-camcorder text data, is generated for display with corresponding digital cinema content. Real-time... Agent: Robert D. Shedd, Patent Operations Thomson Licensing LLC

20090316893 - Address generating method and broadcast receiving apparatus: A broadcast receiving apparatus comprises a broadcast receiving unit (1, 4˜13) for receiving a digital broadcast; a communication unit (1˜3) for performing two-way communication through a network; an operation unit 15 for performing an acquisition operation of a key for decrypting an encrypted broadcast program received by the broadcast receiving... Agent: Hogan & Hartson L.L.P.

20090316895 - Conditional access system and method for prevention of replay attacks: b

20090316892 - Crypto micro-module using ieee 1394 for stream descrambling: In certain embodiments, a television receiver circuit has a tuner circuit and a demodulator circuit that cooperatively produce a digital transport stream for a tuned channel as an output therefrom. A transport processor in an SOC receives the digital transport stream and switches the digital transport stream to an IEEE1394... Agent: Miller Patent Services

20090316894 - Method and apparatus for checking consistency between digital contents: The present invention discloses a method and apparatus for checking consistency between digital contents, pertaining to digital rights management technologies. The method includes: extracting feature values from an original digital content; extracting feature values from a digital content under check; comparing the feature values of the original digital content with... Agent: Leydig, Voit & Mayer, Ltd (for Huawei Technologies Co., Ltd)

20090316896 - Method for managing the number of visualizations, security processor and terminal for said method: The invention relates to a method for managing the number of visualizations of an audiovisual content, that comprises: providing a table containing an equal number of cells and of time segments of the audiovisual content, each cell being associated in a bi-unique manner with a respective segment of the audiovisual... Agent: Pearne & Gordon LLP

20090316897 - Communication apparatus, key server, and data: A communication apparatus that encrypts a plurality of pieces that constitute a part of data and transmits the encrypted pieces stores an encrypted piece that is one of the pieces encrypted by another communication apparatus, and first decryption key information used for decrypting the encrypted piece, while keeping the encrypted... Agent: Turocy & Watson, LLP

20090316899 - Encryption/decryption device and security storage device: Provided are an encryption/decryption device and a security storage device including same. The encryption/decryption device includes a first enc/decrypter, a second enc/decrypter, a controller configured to provide a plurality of control signals in response to a setting signal, and a path selection circuit configured to connect the first enc/decrypter and... Agent: Volentine & Whitt PLLC

20090316898 - Random number generation: A method and apparatus for obtaining, while on a spacecraft, a random number and hence a secure cryptographic key. The method includes the steps of providing, on the spacecraft, a device capable of producing random information when subject to random space phenomena, obtaining the random information and producing a random... Agent: Buchanan, Ingersoll & Rooney PC

20090316900 - Method and apparatus for using navigation signal information for geoencryption to enhance security: A data encryption and decryption system securely geoencrypts data using location-dependent navigation signals. To increase the entropy of the cryptographic key to guard against a brute-force attack, geoencryption is made to depend on largely time-independent characteristics of the navigation signals that are not easily spoofed, including the time difference of... Agent: O''melveny & Myers LLP Ip&t Calendar Department La-13-a7

20090316901 - Secret communication method and secret communication device thereof: A secret communication method and a communication device used in the method are provided for secret communication using communication path less frequently as a whole while avoiding a duplicative use of public communication. The secret communication method includes steps of: estimating an error ratio of initial random numbers X, Y;... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090316902 - Method and apparatus for encoding security status information: A method of transmitting messages from a sender to a recipient over a wireless channel, the messages including a sequence counter and a frame counter. The method comprises establishing initial values of the sequence counter and the frame counter at the sender. Initial values of the frame counter and the... Agent: Blake, Cassels & Graydon LLP

20090316903 - Time sync-type otp generation device and method for mobile phones: The present invention relates to a time sync-type One-Time Password (OTP) generation device and method for a mobile phone. The present invention is configured such that an IC chip, in which a serial number and a secret key for OTP generation are encoded and stored, is mounted in an IC... Agent: Ladas & Parry LLP

20090316904 - Hardware acceleration for wwan technologies: Systems and methods for wireless communications are provided. These include data deciphering components, interrupt processing components, adaptive aggregations methods, optimized data path processing, buffer pool processing, application processing where data is formatted in a suitable format for a destination process, and Keystream bank processing among other hardware acceleration features. Such... Agent: Qualcomm Incorporated

20090316905 - Key exchange through a scramble methodology and system: The method, system, and apparatus of key exchange through a scramble methodology and system is disclosed. In one embodiment, the method includes generating a security key associated with a protected media content, disassembling the security key (e.g., may be an unencrypted key) into a set of key bits, generating non-key... Agent: Raj Abhyanker LLP

20090316906 - Method of verifying the integrity of an encryption key obtained by combining key parts: The method of verifying the integrity of an encryption key (K) obtained by combining at least two key portions (KM, M) in a protected zone (3) by using a commutative operator, comprises the steps of: using the commutative operator to perform a first combination between a key portion (KM) and... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090316907 - System and method for automated validation and execution of cryptographic key and certificate deployment and distribution: A method for automated validation and execution of cryptographic key and certificate deployment and distribution includes providing one or more keys; providing one or more key deployment points; and distributing the one or more keys to the one or more key deployment points in an automated manner based on a... Agent: Ibm - Yor Shimokaji & Associates, P.C.

20090316908 - Verification key handling: A method, an apparatus, and a computer program product for enabling verification key handling is disclosed. Said handling is enabled by receiving a verification key including an identifier of the parent verification key of the verification key, wherein the verification key includes a constraint portion, determining whether the constraint portion... Agent: Harrington & Smith, PC

20090316910 - Method and device for managing cryptographic keys in secret communications network: A cryptographic key management method and device are provided by which cryptographic keys of multiple nodes can be managed easily and stably. A system includes at least one first node and a plurality of second nodes connected to the first node, and the first node individually generates and consumes a... Agent: Scully Scott Murphy & Presser, PC

20090316909 - Utilization apparatus, servicer apparatus, service utilization system, service utilization method, service utilization program, and integrated circuit: Provided are a utilization apparatus, a server apparatus, and a key utilization system which enable the utilization apparatus to control deletion of the old key without using a secure clock and allow encrypted communications irrespective of whether the accessed server has updated its key or not. In key utilization system... Agent: Snell & Wilmer L.L.P. (panasonic)

20090316911 - Apparatus and method for transmitting a plurality of key data: An apparatus and method for transmitting a plurality of key data. When a Short-Term Key Message (STKM) is received, a mobile equipment transmits the received STKM to a smart card. The smart card determines whether there are a plurality of key data in the STKM, detects the plurality of key... Agent: Docket Clerk

20090310776 - Information concealment method and information concealment device: An information concealment method comprising: a splitting step to split information into an encryption segment to be encrypted and a non-encryption segment not to be encrypted according to a predetermined rule; an encryption step of encrypting the encryption segment; a control table generating step of generating a control table for... Agent: K&l Gates LLP

20090310775 - Using a single instruction multiple data (simd) instruction to speed up galois counter mode (gcm) computations: In one embodiment, an encryption operation may be performed by obtaining a product of a carry-less multiplication using multiple single instruction multiple data (SIMD) multiplication instructions each to execute on part of first and second operands responsive to an immediate datum associated with the corresponding instruction, and reducing the product... Agent: Trop, Pruner & Hu, P.C.

20090310777 - Trust anchor key cryptogram and cryptoperiod management method: In the field of public key cryptography, e.g. a public key infrastructure, the distribution of trust anchor keys to end-user systems is difficult when the time comes to change the public key, either because a compromise of the private key counterpart is suspected, or as a cryptoperiod policy enforcement. With... Agent: Thierry Moreau

20090310778 - Variable-length cipher system and method: Systems and methods for enciphering data are provided. In one embodiment, information is enciphered using a variable block length cipher that returns the encrypted symbol set in the same format as the plaintext symbol set. The cipher can be based on DES, AES or other block ciphers. In one example... Agent: Sheppard, Mullin, Richter & Hampton LLP

20090310779 - Method for generating cryptographic key from biometric data: Data from biometric images such as minutiae of a fingerprint are represented in coordinates x- and y-, and the direction of the ridge flow of the minutia θ; in vector sets of (x1, y1, θ1) are used in generating a 256-bit secret key in a secure manner in enrolling the... Agent: Brooks Kushman P.C.

20090310780 - Broadcast receiving apparatus and broadcast receiving method: Before a device key generation procedure is updated in response to execution of revoke, a recorded transport stream is decrypted using an unupdated device key and is stored in a memory unit after being re-encrypted. In this manner, broadcast programs that are recorded before the revoke can be viewed while... Agent: Canon U.s.a. Inc. Intellectual Property Division

20090310781 - Method and apparatus for authentication of portable electronic devices: A mobile communication terminal connected to the portable electronic device encodes a system serial number and an authentication key, generates an integration secrete key, and transmits the integration secrete key to an authentication center computer. The authentication center computer decodes the integration secrete key, performs authentication registration, encodes a temporary... Agent: Ipla P.A.

20090310783 - Controlled dissemination of information in mobile networks: The present invention discloses systems and methods for controlled dissemination of information in mobile networks using encrypted broadcasts that are decrypted at the device. An encryption key is generated corresponding to a particular category or granularity of information. The information is encrypted before it is broadcast to the sector. A... Agent: Nec Laboratories America, Inc.

20090310782 - Mapping schemes for secondary synchronization signal scrambling: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a... Agent: Texas Instruments Incorporated

20090310784 - Qkd system alignment: QKD receiving apparatus is provided with an alignment-correction system for correcting misalignment of a quantum signal received at an optical port of the apparatus relative to a quantum-signal detector of the receiving apparatus. The alignment-correction system comprises a misalignment measuring subsystem for making multiple different misalignment measures, and a misalignment... Agent: Hewlett-packard Company Intellectual Property Administration

20090310785 - Enhanced message security: A secure messaging system and method includes receiving an encrypted message, the message having been encrypted using a token of a corresponding pervasive device; wirelessly verifying the presence of the pervasive device; and, if the presence can be verified, decrypting the message using the token. The verification step can include... Agent: Carey, Rodriguez, Greenberg & Paul, LLP Steven M. Greenberg

20090310786 - Systems for channel coordination of audio and data transmission in a broadcast band: Systems for audio and data transmission in a broadcast band are disclosed. The system comprises a channel condition assessment module at the transmit side to identify an un-occupied or empty channel to transmit. The system also comprises a means to achieve automatic channel coordination between the transmit side and the... Agent: Blairtech Solution LLC

20090310787 - Image forming apparatus, key management server, activation system, and deactivation system: The image forming apparatus has: a network communication unit capable of communicating with a web server via a network; a web browser that accesses the web server via communication by the network communication unit, and acquires an activation key from the web server; and an activating unit that activates an... Agent: Stephen Chin Von Simson & Chin

20090310788 - Method for managing and controlling the access keys to services in a communication system: A method for managing keys making it possible for a user to access one or more given services S in a communication system, in which the user is not able to be continuously connected to this service. A key K(t) is generated, which provides access to the service of day... Agent: Lowe Hauptman Ham & Berner, LLP

20090310789 - Extended data signing: Various embodiments enable so-called extended data to be added to a signed digital certificate without having a private key of a Certification Authority available. In at least some embodiments, a digital certificate can be issued and signed off line by the Certification Authority, and then later extended data can be... Agent: Microsoft Corporation

20090304179 - System and method to preclude message modification in data authentication systems through efficent use of feedback in cryptographic functions: A data hashing system operative to hash an incoming string of message words, thereby to generate a hash value tag comprising a deterministic random number string which uniquely identifies the incoming string, the system comprising at least first and second register arrays, at least one 1-way at least pseudo-randomizing functionality;... Agent: Kevin D. Mccarthy Roach Brown Mccarthy & Gruber, P.C.

20090304180 - Key evolution method and system of block ciphering: A system and associated method for block ciphering. The method generates a key that is specific to a text block being encrypted and later being decrypted. The text block is encrypted by a block cipher encryption with the key. The encrypted text block is decrypted by a block cipher decryption... Agent: Schmeiser, Olsen & Watts

20090304181 - Method for generating and/or imprinting a retrievable cryptographic key during the production of a topographic structure: The cryptographic key is formed or derived from the measuring values of the measuring circuits (11). The measuring circuits (11) are composed of three-dimensional electrical line structures (9, 10), each of which is provided with a random design and is generated in the topographic structure, and generate the measuring values... Agent: Renner Kenner Greive Bobak Taylor & Weber

20090304182 - System and method for providing information using audio watermarking: A system for providing information using a watermarking technique includes a signal generating means for inserting an information data into a sound source to generate an audio signal having the information data; a signal transmitting means for transmitting the audio signal to a user terminal; and an information extracting means... Agent: Chernoff, Vilhauer, Mcclung & Stenzel, LLP

20090304183 - Communication system and communication method: To improve a communication system including two communication apparatuses so as to reduce a possibility of having communication decrypted by a third party. The communication system includes a first communication apparatus and a second communication apparatus, where one of the communication apparatuses encrypts transmission subject data and transmits generated encrypted... Agent: Paul, Hastings, Janofsky & Walker LLP

20090304184 - Mobile communication system, mobile communication method, wireless base station, and mobile station: A mobile communication system that performs concealment processing of data between a wireless base station and a mobile station. The mobile communication system includes a concealment synchronization deviation detecting unit that detects concealment synchronization deviation between the mobile station and the wireless base station by detecting expansion failure of a... Agent: Myers Wolin, LLC

20090304185 - Method of tracing device keys for broadcast encryption: Provided are a method of tracing a device key in a user key management system using a hierarchical hash chain broadcast encryption scheme (HBES) algorithm, a user key management system for executing the method of tracing a device key, and a computer program for executing the method of tracing a... Agent: Sughrue Mion, PLLC