Cryptography inventions 01/08

20080025499 - Electronic mail management device: An internet facsimile terminal. An output control part determines whether a received electronic mail is encrypted. If the electronic mail is not encrypted, the output control part controls an output part to output the electronic mail. If the electronic mail is encrypted, the output control part controls an electronic mail... Agent: Hogan & Hartson L.L.P.

20080025496 - Encrypting a plaintext message with authentication: An encryption and authentication technique that achieves enhanced integrity verification through assured error-propagation using a multistage sequence of pseudorandom permutations. The present invention generates intermediate data-dependent cryptographic variables at each stage, which are systematically combined into feedback loops. The encryption technique also generates an authentication tag without any further steps... Agent: Rg & Associates

20080025495 - Method and system for securing scrambled data: A distribution process with access control of scrambled data to at least one receiver terminal. The process includes an encryption phase that subdivides the data into an integer of families each including an integer of blocks, assigns each family a specific identification parameter associated with at least one descrambling module... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080025503 - Security method using self-generated encryption key, and security apparatus using the same: A security method and a security apparatus are disclosed which use a self-generated encryption key. The security method includes the steps of: generating an encryption key; decrypting pre-encrypted data using a pre-stored manufacturer key; and re-encrypting the decrypted data using the encryption key. The security method and apparatus minimize external... Agent: Sughrue Mion, PLLC

20080025502 - System, method and apparatus for an incremental modular process including modular multiplication and modular reduction: A computer connected to a memory. The computer to execute an encryption program in the memory. The encryption program including an incremental modular multiplication portion to calculate a first product. The incremental modular multiplication portion to calculate a second product from a prefixed first product. A modular reduction portion to... Agent: Blakely Sokoloff Taylor & Zafman

20080025506 - Memory access control apparatus and method, and communication apparatus: A memory access control apparatus includes the following elements: a scrambling key generator configured to generate a binary scramble key including predetermined low-order bits being fixed values where the value of the least significant bit is one and the remaining bits being a random number or a pseudo-random number; and... Agent: Bell, Boyd & Lloyd, LLP

20080025500 - Cryptographic device having tamper resistance to power analysis attack: A randomly selected point on an elliptic curve is set as the initial value of a variable and calculation including a random point value is performed in an algorithm for calculating arbitrary scalar multiple operation on an elliptic curve when scalar multiplication and addition on an elliptic curve are defined,... Agent: Staas & Halsey LLP

20080025501 - Image data transmission system, process and program, image data output device and image display device: When a connection is established between a server 20 and projectors 301 through 30n, a communication command is issued according to UDP-based broadcasting to retrieve connectable projectors 301 through 303. Thereafter, the projector 301 to be connected is selected and is assigned an IP address to establish the connection. In... Agent: Oliff & Berridge, PLC

20080025498 - Montgomery power ladder algorithm including countermeasure against differential fault analysis: A Montgomery power ladder algorithm that provides a countermeasure against a differential fault analysis (DFA) includes an initialization operation and a repetitive arithmetic operation. In the initialization operation, an initial value of a variable i, which will be used in the repetitive arithmetic operation, is set, a basic point P... Agent: Frank Chau, Esq. F. Chau & Associates, LLC

20080025497 - Multiple key encryption with \"red herrings\": An encryption and communication system and computer which creates a message having both true encrypted characters with false (Red Herring) characters intermixed therewith. In one embodiment, a template is created which is then communicated to a remote computer. The message to be encrypted is received and the placement of the... Agent: Mark E. Ogram

20080025504 - Computer or digital device data encryption/decryption performed by using a random analog source: A digital data encryption methodology that uses truly random data rather than pseudo-random data generated by conventional binary computer algorithms to encrypt and decode computer data is made by converting a natural source of random data from its native analog domain to digital through an Analog to Digital converter creating... Agent: Robert James Rapp

20080025505 - Encryption method using synchronized continuously calculated pseudo-random key: A method of securely communicating a digital message between first and second information processing devices. The first and second information processing devices each continuously and sequentially generate and store, in real time, the digits of a pseudo-random number such that the number of digits in the pseudo-random number generated by... Agent: Schmeiser, Olsen & Watts

20080025507 - Secure file conversion and multimedia sampler processing: Improved capabilities are described for taking a source digital file that is protected with a digital rights management facility, and converting the digital file into a file format suitable for use by a target application. In this case the target file format is different from the original file format of... Agent: Strategic Patents P.C..

20080025508 - Multimedia signal receiving apparatus and control method thereof: A multimedia signal receiving apparatus and a control method thereof are provided for easily storing and/or transmitting an encrypted AV signal together with a decryption key without decrypting the encrypted AV signal. The multimedia signal receiving apparatus includes: an interface which receives a multimedia signal containing an encrypted AV signal... Agent: Sughrue Mion, PLLC

20080025509 - Methods of scrambling and descrambling units of data: A method of scrambling a stream of data includes obtaining from the stream a succession of first sequences of blocks of data. The order of the blocks is reversed in each of the first sequences of blocks to form respective second sequences of blocks of data. The blocks in each... Agent: Schwegman, Lundberg & Woessner, P.A.

20080025510 - Incorporating shared randomness into distributed cryptography: A method of distributed cryptography for high consequence security systems which employs shared randomness between operating parties. Shared randomness is accomplished by sharing cryptographic keys stored in secure hardware tokens by potentially less secure software or general purpose computing units that perform distributed cryptography. The shared randomness is based on... Agent: Steptoe & Johnson LLP

20080025511 - Data communication system: A data communication system wherein the concealment is enhanced by significantly increasing the time required for the wiretapper to decrypt a cipher text. The data communication system is constituted by connecting a data transmitting apparatus (13105) to a data receiving apparatus (11201) via a transmission path (110). In the data... Agent: Wenderoth, Lind & Ponack L.L.P.

20080025512 - Communication apparatus, control method therefor, and computer program allowing computer to execute the same: Communication between apparatuses is performed by switching an operation mode or a communication mode in the apparatuses based on an encryption method to be used for communication between the apparatuses. For example, in the case that two communication apparatuses are communicating with each other in a first communication mode using... Agent: Canon U.s.a. Inc. Intellectual Property Division

20080025513 - Automatic recovery of tpm keys: A trusted platform module (TPM) is a silicon chip that constitutes a secure encryption key-pair generator and key management device. A TPM provides a hardware-based root-of-trust contingent on the generation of the first key-pair that the device creates: the SRK (storage root key). Each SRK is unique, making each TPM... Agent: Ference & Associates LLC

20080025515 - Systems and methods for digitally-signed updates: Certain embodiments of the present invention provide a cryptographic system that enables updates with digital signatures, the signatures being created using an improved digital signature scheme, or using a conventional digital signature scheme that uses a one-way hash function algorithm during digital signature creation and verification, the updates being digitally-signed... Agent: Mcandrews Held & Malloy, Ltd

20080025514 - Systems and methods for root certificate update: Certain embodiments of the present invention provide a method for replacing a cryptographic key including receiving a key replacement message for replacing the cryptographic key, decrypting at least part of the key replacement message using at least part of the cryptographic key, reading from the key replacement message at least... Agent: Mcandrews Held & Malloy, Ltd

20080025516 - Client server distributed system, server apparatus, client apparatus, and inter-client rtp encrypting method used for them: When an SIP interface unit of a server apparatus receives an SIP message for call connection from a client apparatus and an SIP message analyzing unit can confirm that the SIP message is normal, a call controller recognizes that an RTP communication is carried out between the client apparatus and... Agent: Sughrue Mion, PLLC

20080025517 - Key management for content protection: A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising: providing a plurality of authorized devices; dividing the plurality of authorized devices into a plurality of groups, each of the plurality of authorized... Agent: Ladas & Parry

20080019505 - Cooperative encoding of data by pluralities of parties: Methods and apparatus include cooperatively encoding digital data between collaborating parties. By prior agreement, the parties take turns encoding portions of a given payload (e.g., document), until all portions have been encoded, thereby transforming the payload from a native encoding to a new, composite encoding. Choreography rules facilitate the process.... Agent: King & Schickli, PLLC

20080019506 - Encryption/decryption apparatus, system and method: A memory encryption/decryption apparatus includes a memory module, an encryption/decryption key and an encryption/decryption unit. The encryption/decryption unit uses the encryption/decryption key to decrypt encrypted input information received by the memory encryption/decryption apparatus and to encrypt output information in the memory module.... Agent: Law Offices Of Lai & Associates, P.C.

20080019504 - Key generation for advanced encryption standard (aes) decryption and the like: An apparatus for generating round-key words in accordance with a Rijndael algorithm. In one embodiment of the invention, the apparatus includes (a) a key expansion register block, having a key expansion register adapted to receive a final cipher key of a key expansion schedule in accordance with the Rijndael algorithm;... Agent: Mendelsohn And Associates, P.C.

20080019507 - Method for protecting ic cards against power analysis attacks: A method for protecting data against power analysis attacks includes at least a first phase of executing a cryptographic operation for ciphering data in corresponding enciphered data through a secret key. The method includes at least a second phase of executing an additional cryptographic operation for ciphering additional data in... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20080019510 - Privacy-preserving substring creation: A system to contribute to creating a substring of a string may include a communication unit and a processing unit. The communication unit may be configured to receive an encrypted representation of a second share of the string. The string may be identical to the second share of the string... Agent: Schwegman, Lundberg & Woessner/sap

20080019509 - Scalar multiplication method with inherent countermeasures: An elliptic curve cryptosystem includes process to multiply a scalar value with an elliptic curve point. The processes provide a countermeasure against address-bit attacks. The processes have no correlation between the bit values of a scalar and the addresses of the operands of point addition and doubling operations and therefore... Agent: Lowe Hauptman Ham & Berner, LLP

20080019512 - Accelerating diffie-hellman key-exchange protocol with zero-biased exponent windowing: A method for improving performance in exponentiation algorithms for encryption programs such as the Diffie-Hellman key-exchange protocol. The program determines if a standard exponentiation algorithm or an algorithm optimized for reduced memory are optimal for a given circumstance. The optimized algorithms may use zero-biased exponents to minimize the number of... Agent: Blakely Sokoloff Taylor & Zafman

20080019515 - Method and apparatus for security sequence numbering in a wireless communication system: To eliminate overhead in a wireless communications system, a method of performing security sequence numbering uses a first sequence number in a first protocol entity as a parameter of a first security function, and uses the first sequence number in a second protocol entity as a parameter of a second... Agent: Birch, Stewart, Kolasch & Birch, LLP

20080019503 - Encryption protection method: A deterministic blinding method for cipher algorithms that employ key-mixing and substitution (S-box) operations uses a masking table constructed with a true mask and a plurality of dummy masks corresponding to every possible S-box input. Each mask is applied in the key-mixing operation (e.g., bitwise XOR) to the cipher key... Agent: Schneck & Schneck

20080019511 - Encryption apparatus, decryption apparatus, program, and method: An encryption apparatus generates two random three-variable polynomials r(x,y,t) and s(x,y,t) to be constituted of like terms of a variable xiyj (where i and j are degrees that are zero or more) when two multiplication results X(x,y,t)r(x,y,t) and f(t)s(x,y,t) are regarded as polynomials of x and y, and generates an... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080019508 - Public key cryptographic methods and systems with rebalancing: A public key cryptosystem and methods for using same including at least one encrypted message wherein the encryption occurs using RSA methods; and at least one key for decrypting the encrypted message(s) wherein the key further comprising a predetermined number of prime factors, including the prime number P, used for... Agent: Jesse Lipson

20080019513 - Method and apparatus for synchronous stream cipher encryption with reserved codes: A method and apparatus for a signal encryption device constructed to perform synchronous stream cipher encryption for a sequence of input words with restricted codes. The encryption device includes a keystream generator for producing a sequence of pseudorandom words from a key, and an adder that is used to sum... Agent: Texas Instruments Incorporated

20080019514 - Method for generating a cryptographic key: A method for generating at least one cryptographic key is provided in which several devices are each exposed to the same environmental conditions, the devices, taking into account the environmental conditions, each determine a value for a same physical quantity, and the devices each generate a cryptographic key by using... Agent: Dickstein Shapiro LLP

20080019516 - Enforced delay of access to digital content: There is provided a method and system to enforce delay of access to encrypted digital content. The system includes a receiving module to receive a request for digital content and register a request time responsive to the receiving the request for digital content. The request for digital content includes a... Agent: Schwegman, Lundberg & Woessner, P.A.

20080019517 - Control work key store for multiple data streams: An apparatus may include circuitry, a cryptographic module, and a key store. The circuitry may hold a private key associated with first media information. The cryptographic module may operate on the private key to generate a number of first control keys for decrypting the first media information. The key store... Agent: Trop, Pruner & Hu, P.C.

20080019518 - Semiconductor memory and data transfer system: A semiconductor memory includes a memory array and a scramble/descramble unit. The scramble/descramble unit scrambles read data read from the memory array to generate output data, and descrambles a received scrambled signal to generate a command for the memory array. The scramble/descramble unit updates a method of generating keys used... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080019519 - System and method for secure facsimile transmission: A system and method for the secure transmission of a facsimile, which verifies that a selected user transmitted the document and only allows for the designated recipient or recipients to receive the facsimile is provided. A sending user scans a document, which is then encrypted and digitally signed using the... Agent: Tucker Ellis & West LLP

20080019521 - Apparatus and method for encrypting security key in mobile communication terminal: Provided is an apparatus and method for storing a security key in a mobile communication terminal. In the method, the security key is generated randomly. The generated security key is encrypted in a predetermined encryption scheme. The encrypted security key is stored in the mobile communication terminal. Therefore, even if... Agent: The Farrell Law Firm, P.C.

20080019520 - Communication apparatus and method thereof: This invention enhances the security strength of wireless communications in the ad-hoc mode. To this end, it is checked if the communication apparatus and a terminal of a communication partner can concurrently use different encryption keys in correspondence with a plurality of communication destinations. When at least one of the... Agent: Canon U.s.a. Inc. Intellectual Property Division

20080019522 - Method for managing a communication session in a communication network: A method for managing a communication session between a first communication device and a second device in a communication network (100) is disclosed. The communication session is conveyed between a service-provider server and the first communication device via a first communication link. The method at the first communication device includes... Agent: Motorola, Inc.

20080019523 - Data communication apparatus: A data communication apparatus wherein the stealthiness has been enhanced by significantly increasing the time required for a wiretapper to decrypt an encrypted text. The data communication apparatus is constituted by connecting a data transmitting apparatus and a data receiving apparatus via a transmission path. The data transmitting apparatus receives... Agent: Wenderoth, Lind & Ponack L.L.P.

20080019524 - Apparatus and method for low power aes cryptographic circuit for embedded system: Provided are an apparatus and a method for a low power AES cryptographic circuit for an embedded system. The apparatus and method allows each round operation to be performed in an order of an add round operation, a sub byte operation, a shift row operation, and a mix column operation... Agent: Ladas & Parry LLP

20080019525 - Method and apparatus for encrypted communications using ipsec keys: Disclosed is a method for encrypted communications. A first IPsec endpoint selects a security association (SA) from a security association database (SAD) by using a selector and then extracts an indexing parameter from SA. The indexing parameter is used to determine an active key location from a key storage database... Agent: Motorola, Inc.

20080019526 - Methods and systems for secure key delivery: An embodiment pertains generally to a method of delivering keys in a server. The method includes generating a subject key pair, where the subject key pair includes a subject public key and a subject private key. The method also includes retrieving a storage key and encrypting the subject private key... Agent: Mh2 Technology Law Group (cust. No. W/red Hat)

20080019527 - Method and apparatus for managing cryptographic keys: One embodiment of the present invention provides a system for managing keys. During operation, the system authenticates a client at a key manager. Next, the system receives a token from the client at the key manager, wherein the token is associated with a customer key, and includes a token authenticator.... Agent: Oracle International Corporation C/o Park, Vaughan & Fleming LLP

20080019528 - Multicast key issuing scheme for large an dmedium sized scenarios an dlow user-side demands: The system according to the invention comprises at least one sender S with key providing means (24) for providing group keys GK and address keys (Xj, Yj, Zj). A plurality of receivers r each have accessing means (42, 50) for accessing individual receiver address key sets and group keys. Group... Agent: Philips Intellectual Property & Standards

20080019529 - Distribution of video content using client to host pairing of integrated receivers/decoders: A host receiver and a client receiver are operatively in a direct broadcast satellite system. Program materials received by the host receiver from the direct broadcast satellite system are decrypted by the host receiver. The decrypted program materials are then encrypted at the host receiver using a copy protection key.... Agent: The Directv Group, Inc. Patent Docket Administration

20080019530 - Message archival assurance for encrypted communications: Embodiments of the present invention address deficiencies of the art in respect to encrypted message management in an archival environment, and provide a novel and non-obvious method, system and computer program product for message archival assurance. In one embodiment of the invention, a message archival assurance method can be provided... Agent: Carey, Rodriguez, Greenberg & Paul, LLP Steven M. Greenberg

20080013718 - Image processing apparatus, image processing method and image processing program: The scanner apparatus incorporating a scanner section, a printer section, an operator panel section, a storage section, a network communication section and a processing section is connected to various terminal units, such as a client terminal, via a network. This scanner apparatus is operable, when data is stored in a... Agent: Buchanan, Ingersoll & Rooney PC

20080013717 - System and method for dynamic modification of allowable electronic message properties: A system and method for dynamically and automatically updating the appropriate fields on the message application screen of an electronic message to show which of the appropriate service book, security encoding or security properties are acceptable or allowed for the message being composed. This updating occurs automatically based on the... Agent: Nixon & Vanderhye, PC

20080013715 - Cryptography processing units and multiplier: In general, in one aspect, the disclosure describes a system including multiple programmable processing units, a dedicated hardware multiplier, and at least one bus connecting the multiple processing units and multiplier.... Agent: Intel Corporation C/o Intellevate, LLC

20080013716 - Method to produce new multivariate public key cryptosystems: Multivariate public key cryptosystems (MPKC) are public key cryptosystems, whose public key are a set of multivariate polynomials over a finite field (or ring). MPKC can be used for encryption, authentication and signatures. The invention develops three new methods that could be applied to a multivariate public key cryptosystem to... Agent: Frost Brown Todd, LLC

20080013719 - Methods and apparatus for secure and adaptive delivery of multimedia content: Techniques for securely and adaptively delivering multimedia content. It is assumed that a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time slot are obtained. An encryption stream... Agent: Ryan, Mason & Lewis, LLP

20080013720 - Monobase amorphous encryption: A cryptographically secure keystream generating process includes an expanding amorphous process. A seed key is expanded into a partition index that is carved into elements (parameters) by a parallelizable process. A dispersing value is derived from the partition index to de-cluster subsequent partition indexes. The process operates with constant entropy... Agent: Steven Degele

20080013721 - Asymmetric cryptography with discretionary private key: Several processes and techniques for creating cryptosystems are disclosed. Cryptosystems created accordingly use a personalized secret such as a user-chosen password as a private key and a trio consisting of a first public exponent, a second public exponent, and a modulus as a public key. The public key and the... Agent: Sinorica, LLC

20080013722 - Hierarchical identity-based encryption and signature schemes: Methods are provided for encoding and decoding a digital message between a sender and a recipient in a system including a plurality of private key generators (“PKGs”). The PKGs include at least a root PKG and n lower-level PKG in the hierarchy between the root PKG and the recipient. A... Agent: Macpherson Kwok Chen & Heid LLP

20080013723 - Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method: The invention provides an enciphering apparatus and method, a deciphering apparatus and method and an information processing apparatus and method by which illegal copying can be prevented with certainty. Data enciphered by a 1394 interface of a DVD player is transmitted to a personal computer and a magneto-optical disk apparatus... Agent: Frommer Lawrence & Haug

20080013724 - Methods and apparatus for persistent control and protection of content: A novel method and apparatus for protection of streamed media content is disclosed. In one aspect, the apparatus includes control means for governance of content streams or content objects, decryption means for decrypting content streams or content objects under control of the control means, and feedback means for tracking actual... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080013725 - Content-protected digital link over a single signal line: A packet based high bandwidth copy protection method is described that includes the following operations. Forming a number of data packets at a source device, encrypting selected ones of the data packets based upon a set of encryption values, transmitting the encrypted data packets from the source device to a... Agent: Beyer Weaver LLP

20080013726 - Content transmission server and content transmission method: A content transmission server which records encrypted streaming data of a predetermined unit to which time information is added and transmits the encoded streaming data to a client, includes: a decryption section; a local encryption section; a storage section; and a transmission section. The decryption section is configured to decrypt... Agent: Bell, Boyd & Lloyd, LLP

20080013727 - Image processing apparatus and image processing method: An image processing apparatus for scanning and printing out an original document is disclosed, including a setting part setting an encryption degree for encrypting contents in a range in the original document to become difficult to visually determine, for each of one or more ranges which are set to partially... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080013728 - Method and device for ensuring data security in passive optical network: In a method for ensuring data security in a PON, when an Optical Line Terminal (OLT) configures an encryption attribute of a channel of an Optical Network Unit (ONU)/Optical Network Termination (ONT), the OLT and the ONU/ONT process plaintext data on the channel of the ONU/ONT before a key switching... Agent: Marshall, Gerstein & Borun LLP

20080013729 - Counter initialization, particularly for radio frames: A method for protecting traffic in a radio access network connected to at least two core networks. The method comprises maintaining a core-network-specific authentication protocol and a radio-bearer-specific ciphering process, and generating, for each ciphering process, a count parameter comprising a cyclical sequence number and a hyperframe number (HFN) which... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080013730 - Method and apparatus for re-synchronization of a stream cipher during handoff: A method and apparatus for re-synchronizing a stream cipher during soft handoff. Transmitted quasi-secret keying information is used with a secret key to reinitialize a stream cipher generator located in a base station and a stream cipher generator located in a travelling mobile station. Since the quasi-secret keying information is... Agent: Qualcomm Incorporated

20080013732 - Encryption key information holding method and encryption key information processing apparatus: According to one embodiment, the amount of processing or the number of circuits needed to re-encrypt title keys is reduced, while keeping a strong protection of the title keys. An old protected area key Kpa0 and a new protected area key Kpa1 are held simultaneously in a memory of a... Agent: Knobbe Martens Olson & Bear LLP

20080013731 - Modified triple wrap encryption/decryption system: Messages are encrypted/decrypted according to a modified triple wrap procedure in which the messages are encrypted/decrypted in three encryption/decryption operations and are processed in three additional operations using first, second, third, fourth, fifth, and sixth keys.... Agent: Zenith Electronics Corporation

20080013739 - Method of and device for updating group key: A method and device for updating a group key are disclosed. The group key updating method comprises determining a start node for a key update on a binary tree, updating a node key of the start node for a key update, updating a node key of a parent node of... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20080013733 - Key management messages for secure broadcast: The present invention involves establishing a top-level key and optionally also a verification tag. The top-level key is used as the MDP key for encrypting a broadcast medium. Only the part of the key message that contains the encrypted top-level key is authenticated, e.g. using a signature or a Message... Agent: Ericsson Inc.

20080013734 - Method and apparatus for storing and distributing encryption keys: A first infrastructure system device other than a mobile station generates an encryption key and encrypts the encryption key with a first intrakey associated with a first zone that includes a second infrastructure system device other than a mobile station, yielding a first encrypted encryption key. The first intrakey is... Agent: Motorola, Inc.

20080013735 - Method and apparatus for storing and distributing encryption keys: A home location register stores key material related to mobile stations associated with the home location register. A first visited location register associated with a first site in a first zone stores key material related to a first mobile station of the mobile stations associated with the home location register.... Agent: Motorola, Inc.

20080013736 - Method and apparatus for storing and distributing encryption keys: A plurality of infrastructure system devices other than a mobile station is divided into a plurality of pools. An intrakey is utilized to encrypt messages passed between infrastructure system devices in the same pool, and an interkey is utilized to encrypt messages passed between infrastructure system devices of different pools.... Agent: Motorola, Inc.

20080013737 - Method and apparatus for storing and distributing encryption keys: A plurality of encryption keys is generated, and each encryption key is associated with one geographical area of a plurality of geographical areas. Each encryption key is forwarded to one or more base stations in the geographical area associated with the encryption key. At least one of the plurality of... Agent: Motorola, Inc.

20080013738 - Secret communications system and channel control method: A secret communications system realizes point-to-multipoint or multipoint-to-multipoint connections of both quantum channels and classical channels. Multiple remote nodes are individually connected to a center node through optical fiber, and random-number strings K1 to KN are individually generated and shared between the respective remote nodes and the center node. Encrypted... Agent: Scully Scott Murphy & Presser, PC

20080013740 - Method and apparatus for storing and distributing encryption keys: A first infrastructure system device other than a mobile station generates key material and forwards the key material to a second infrastructure system device other than a mobile station. A determination is made as to whether a mobile station for which the key material is directed is active on the... Agent: Motorola, Inc.

20080008314 - Encryption and decryption on a graphics processing unit: A system, method, and processor executable instructions are disclosed for offloading encryption and/or decryption processing to a system having a parallel processing structure that may include a graphics processing unit. Lookup tables support executing encryption/decryption transformations solely on the graphics processing unit. In one version, the look-up tables support Rijndael... Agent: Accenture Chicago 28164 Brinks Hofer Gilson & Lione

20080008316 - System and method for enterprise security including symmetric key protection: A system and method for enterprise security including symmetric key protection. In accordance with an embodiment, the system provides a higher level of protection against unauthorized key disclosure by encrypting randomly generated seed data used for key generation, and using digital signatures and asymmetric encryption.... Agent: Fliesler Meyer LLP

20080008315 - Method for key diversification on an ic card: Key diversification is performed during a mutual authentication between a SAM integrated circuit (IC) card storing a master key, and a user IC card storing an identification number. The user IC card is connected to the SAM IC card through a communications interface. The key diversification includes deriving sub keys... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20080008317 - Method and apparatus for detection of loss of cipher synchronization: Detecting loss of stream cipher synchronization between a transmitter and a receiver in a video processing system may be achieved by receiving, by the receiver, an encrypted video frame from the transmitter, obtaining an encrypted value for a selected pixel in the encrypted video frame, decrypting the encrypted pixel value... Agent: Intel Corporation C/o Intellevate, LLC

20080008318 - Image forming apparatus and document management system: An image forming apparatus has a scanner capable of reading, from an original having a wireless tag unit attached thereto, an original image and data stored in the wireless tag unit. The original image read by the scanner can be duplicated by a duplicating unit. Moreover, a user who can... Agent: SocalIPLaw Group LLP

20080008319 - Method and system for security of data transmissions: The described embodiments relate generally to data processing systems and methods for encoding and decoding of a subscription-based data service, such as a satellite or cable television service. These aspects are generally based on use of an encoding key by the service provider to encode the data prior to transmission... Agent: Bereskin And Parr

20080008320 - Chaotic communication system with modulation of nonlinear elements: A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. One improvement to first-generation systems is the ability to modulate a nonreactive element in the transmitting circuit, thus increasing modulation bandwidth. Other features include insertion of a gain control amplifier in a chaotic receiver; signal filtering in chaotic transmitters... Agent: Banner & Witcoff, Ltd.

20080008321 - Conditional access enhancements using an always-on satellite backchannel link: A method and apparatus for providing conditional access to media programs is disclosed. An embodiment of the method comprises the steps of generating a validation message in at least one of the receiver stations, the validation message comprising an answer to a validation query; transmitting the validation message directly from... Agent: Gates & Cooper LLP Howard Hughes Center

20080008322 - Method for session key derivation in an ic card: A key session derivation is provided during a mutual authentication between a master IC card storing a master key, and a user IC card storing a key-seed. The master IC card and the user IC card are connected through a communication interface for a communication session. A first random number... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.