Cryptography inventions 12/06

20060291647 - Encrypted communications: A communications system in which a sending computer encrypts a message using a key associated with the computer which is to receive the message; and the receiving computer uses a key associated with the sending computer in the decryption process. The sending computer is equipped with a set of keys... Agent: Mark E. Ogram

20060291648 - Steam control device, stream encryption/decryption device, and stream encryption/decryption method: The present invention provides a stream control device. The device includes a plurality of data processors that sequentially implement processing for stream data. The unit data of processing in each of the data processors has a certain data amount. The stream control device also includes a memory that is provided... Agent: Robert J. Depke Lewis T. Steadman

20060291649 - Chaos generator for accumulation of stream entropy: A chaos generator for accumulating stream entropy is disclosed. The chaos generator includes a random source coupled to an entropy accumulator that is configurable for generating a binary random input sequence. The entropy accumulator is configurable for accumulating entropy of the input sequence and providing a binary random output sequence... Agent: Morgan Lewis & Bockius LLP/ Apple Computer Inc.

20060291650 - State-varying hybrid stream cipher: In one embodiment, a state-varying hybrid stream cipher operating within a computing device. The state-varying hybrid stream cipher comprises at least two software routines. A first routine is responsible for dividing incoming plain text into variable-sized blocks. A second software routine is for converting the plain text into cipher text... Agent: Blakely Sokoloff Taylor & Zafman

20060291652 - Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus: A data player for reading contents encrypted by a decoding key from a digital medium, and playing the encrypted contents by using the decoding key which is stored in a key storage unit, comprises: a key obtaining unit for performing mutual authentication with the key storage unit to obtain the... Agent: Wenderoth, Lind & Ponack, L.L.P.

20060291653 - Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus: A data player for reading contents encrypted by a decoding key from a digital medium, and playing the encrypted contents by using the decoding key which is stored in a key storage unit, comprises: a key obtaining unit for performing mutual authentication with the key storage unit to obtain the... Agent: Wenderoth, Lind & Ponack, L.L.P.

20060291651 - Method for converting non copy protected data into copy protected data: d

20060291654 - Apparatus and method for descrambling transport stream data: Disclosed is an apparatus and method for descrambling transport stream (TS) data, the descrambling apparatus including: a TS packet input unit for determining from the value of a header of TS packet data whether the TS packet data are scrambled, and outputting determination results and the TS packet data; a... Agent: Mayer, Brown, Rowe & Maw LLP

20060291655 - Secure intermediary communications system: A system for communication of a message in which the message intended for a third computer is first encrypted by a first computer and is sent to a second computer. The second computer, acting as an intermediary, +decrypts the message and re-encrypts the message before sending the message to the... Agent: Mark E. Ogram

20060291656 - Encryption method and decoding method for a digital transmission system: An encryption method and decoding method for a digital transmission system, in which the digital data stream comprises an alternating sequence of training sequences and data symbols, and the training sequences are dynamically coded. At the receiving end, a decoding code (Vn) is generated by a code generator as a... Agent: Philips Intellectual Property & Standards

20060291658 - Portable terminal having function of coupling and reproducing multimedia files and method thereof: A portable terminal having a function of coupling and reproducing a plurality of multimedia files and a method thereof are disclosed. The portable terminal includes: a storing unit for storing a plurality of multimedia files each of which has time information; an input unit for receiving a request signal of... Agent: Blakely Sokoloff Taylor & Zafman

20060291657 - Trusted monitoring system and method: Methods and apparatus for monitoring remotely located objects with a system comprised of at least one master data collection unit, any number of remote sensor units, and a central data collection server are described. The master unit is configured to monitor any object, mobile or stationary, including monitoring multiple remote... Agent: Knobbe Martens Olson & Bear LLP

20060291659 - Wireless communication authentication: A replay attack from an unauthorized user is easily avoided by wireless communication authentication. A mobile node acquires an inherent identification number owned by a base station connected to the mobile node, and sends authentication packet data including the identification number and information providing transfer route information for packet data... Agent: Foley And Lardner LLP Suite 500

20060291661 - Cryptographic authentication and/or establishment of shared cryptographic keys, including, but not limited to, password authenticated key exchange (pake): A server (120) uses a password (π) to construct a multiplicative group (ZN*) with a (hidden) smooth order subgroup (<x′>), where the group order (Pπ) depends on the password. The client (110) uses its knowledge of the password to generate a root extraction problem instance (z) in the group and... Agent: Macpherson Kwok Chen & Heid LLP

20060291660 - Sim uicc based broadcast protection: A method is described herein for protecting multicast/broadcast traffic (e.g., mobile TV, multimedia) which is transmitted from a broadcast service provider via a mobile operator to one or more mobile devices. To protect the multicast/broadcast traffic, the method utilizes a broadcast key distribution and encryption architecture that is based in... Agent: Ericsson Inc.

20060291662 - Decryption-key distribution method and authentication apparatus: A decryption key for decrypting data from an access node is distributed to an access terminal intending to receive the data. An authentication unit receives a message for terminal authentication including a terminal identifier from the terminal and authenticates the terminal. The authentication unit refers to a content registration table... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20060291663 - Link key injection mechanism for personal area networks: According to one embodiment, a method is disclosed. The method includes generating a link key at a secure component within a first personal area network device and injecting the link key into a protocol stack component database within the first device. The link key may further be transmitted to a... Agent: Blakely Sokoloff Taylor & Zafman

20060291664 - Automated key management system: A system for automated cryptographic key management comprises a key control system, a key management agent system, and a key system application program interface. A method for automated cryptographic key management is also disclosed. The method comprises the automatic generation of cryptographic keys by the key control system and distribution... Agent: Kennedy Covington Lobdell & Hickman, LLP

20060285682 - Authentication system executing an elliptic curve digital signature cryptographic process: An authentication system and a method for signing data are disclosed. The system uses a hardware software partitioned approach. In its implementation the system of the invention compares favourably with performance and other parameters with a complete hardware or full software implementation. Particularly, advantageously there is a reduced gate count.... Agent: Hedman & Costigan P.C.

20060285683 - Method for cryptographically processing a message, method for generating a cryptographically processed message, method for performing a cryptographic operation on a message, computer system, client computer, server computer and computer program elements: A method for cryptographically processing a message is disclosed, wherein a first partial cryptographic key and a second partial cryptographic key, which correspond to a decomposition of a private cryptographic key, are used, the message is processed using the first partial cryptographic key resulting in a first partially processed message,... Agent: Foley And Lardner LLP Suite 500

20060285684 - Method and apparatus for facilitating efficient authenticated encryption: A shared-key encryption scheme that uses identically keyed block-cipher calls, low additional overhead, supports the encryption of arbitrary-length strings, produces a minimal-length-ciphertext, and is fully parallelizable. In one embodiment, “OCB”, a key shared between communicating parties is mapped to a key variant using the block cipher. The key variant is... Agent: Park, Vaughan & Fleming LLP

20060285685 - Dna based identification and tracking system: A method and apparatus for tracking and identification of humans and animals via an embedded network consisting of existing communications infrastructure by routing unique DNA profile data packets emitted by a DNA RF MEMS Device. The apparatus consists of a RF enabled transmitter which emits a unique data packet containing... Agent: Philip H. Burrus, Iv

20060285686 - Apparatus and method for processing streams: For conditional access purposes a stream is used in which at least two different decryption algorithms are needed for decryption of packets that encode different interspersed parts of the same signal for (quasi-)continuous rendering (such as an audio or video signal). Information is included in the stream to indicate dynamically... Agent: Philips Intellectual Property & Standards

20060285687 - Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus: A data player for reading contents encrypted by a decoding key from a digital medium, and playing the encrypted contents by using the decoding key which is stored in a key storage unit, comprises: a key obtaining unit for performing mutual authentication with the key storage unit to obtain the... Agent: Wenderoth, Lind & Ponack, L.L.P.

20060285688 - Data player, digital contents player, playback system, data embedding apparatus, and embedded data detection apparatus: A data player for reading contents encrypted by a decoding key from a digital medium, and playing the encrypted contents by using the decoding key which is stored in a key storage unit, comprises: a key obtaining unit for performing mutual authentication with the key storage unit to obtain the... Agent: Wenderoth, Lind & Ponack, L.L.P.

20060285689 - Apparatus for and a method of authenticating recording media: A digital recording medium such as an optical disc is recorded using an encoding process this is modified to cause a peak or rapid change in the digital sum value in the encoded data for part of the recording data. This provides the corresponding part of the recorded medium with... Agent: Patent Department Macrovision Corporation

20060285690 - Method of downloading software in digital broadcast receiver: Provided is a method of downloading, by a digital broadcast receiver, a software for upgrade through broadcast signals. According to the method, existence of a receiver software to be downloaded is checked, and a reservation time for downloading of the software is set. After that, a download and upgrade of... Agent: Birch Stewart Kolasch & Birch

20060285691 - National security alerting in wireless communication networks: A wireless communication network is described that includes a control system and a plurality of network nodes, such as MSCs. The network nodes communicate with mobile wireless devices, such as cell phones. The control system receives national security information for a geographic region. The control system identifies one or more... Agent: Duft Bornsen & Fishman, LLP

20060285692 - Proxy method and system for secure wireless administration of managed entities: A method, system and apparatus are described for avoiding the use of a web-server or generic security when providing network administration services remotely to managed entities using wireless technology. Instead a true Proxy device, not operating as a web-server, is used to preprocess all command traffic from wireless input devices... Agent: Davidson Berquist Jackson & Gowdey LLP

20060285693 - Method and apparatus for automatic and secure distribution of a symmetric key security credential in a utility computing environment: Embodiments of the invention provide a method and an apparatus for automatic, secure, and confidential distribution of a symmetric key security credential in a utility computing environment. In one method embodiment, the present invention establishes a symmetric key at a management server, the symmetric key automatically associated with a logical... Agent: Hewlett Packard Company

20060285694 - Method and system for managing key of home device in broadcast encryption (be) system: A method and a system for managing a key of a home device in a broadcast encryption system are provided. A hierarchical structure of a group set comprising a plurality of nodes corresponding to the home server and a plurality of nodes corresponding to the home device is formed. A... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20060280297 - Cipher communication system using device authentication keys: A cipher communication method includes preparing cipher text data which can be decrypted only by a specific partner device, and performing encryption and decryption processing at high speed with realizing an alternate and mutual authentication. A common key is used as encryption and decryption keys, and these keys (Kab) are... Agent: Sughrue Mion, PLLC

20060280296 - Cryptographic method and system for encrypting input data: A method and system for encrypting input data may include receiving an input point and a randomness rate and generating a random selection value and a random position value from the randomness rate. At least one of the input point and points encrypted by performing elliptic curve (EC) operation over... Agent: Harness, Dickey & Pierce, P.L.C

20060280298 - Rotation of keys during encryption/decryption: Data is encrypted according to a plurality of data keys. During the encryption of the data, the data keys are rotated according to a data key rotation pattern, and the rotation of the data keys includes repetitive use of the data keys during the encryption of the data. The encrypted... Agent: Zenith Electronics Corporation

20060280300 - Cryptographic system: A cryptographic system is described that comprises a method for the exchange of public keys and the generation of private keys and a message encryption and decryption method via the use of private keys.... Agent: Sheridan Ross PC

20060280299 - Method to grant modification rights for a smart card: A Modification device (5) is designed to modify an application (A1, A2, A3, A4) run by a data carrier (S), wherein a first key information item (K1) is stored in the data carrier (S) and an associated second key information item (K2) is stored in the modification device.... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20060280301 - Encryption scheme for streamed multimedia content protected by rights management system: A stream of content has multiple sub-streams, where each sub-stream comprises a part of the content and is divisible into logical blocks bounded by intrinsic partitions. For each sub-stream, a specification of the logical blocks bounded by the intrinsic partitions is defined and the sub-stream is divided into the logical... Agent: Woodcock Washburn LLP (microsoft Corporation)

20060280302 - Systems and methods for calculating specified matrices: Computer-implemented methods, computer systems, and computer program products are provided for determining specified matrices. The matrices may be associated with financial institutions and the financial affairs in a banking practice. In one implementation, a base matrix is formed which may be used to create the specified matrices when processing mass... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20060280303 - Encryption method and apparatus for use in digital distribution system: A method to securely distribute media content such as Audio or Video with associated media information as part of a media package, in a media distribution system. The media content is encrypted and can be decrypted using a code, process or algorithm called a program key which is further encrypted... Agent: Quarles & Brady LLP

20060280304 - Apparatus and method for all-optical encryption and decryption of an optical signal: The present invention relates to an apparatus and method for the encryption and decryption of optically transmitted data, and more particularly to the encryption and decryption of optical data transmitted and received using only optical components. Because only optical components are used, the encryption and decryption is independent of the... Agent: Howrey LLP

20060280305 - Apparatus, method and computer program product providing mobile node identities in conjunction with authentication preferences in generic bootstrapping architecture (gba): In one exemplary and non-limiting aspect thereof a method is provided that includes sending a wireless network (WN) a first message that includes a list of authentication mechanisms supported by a node and, in association with each authentication mechanism, a corresponding identity; determining in the WN an authentication mechanism to... Agent: Harrington & Smith, LLP

20060280306 - Method and system for restricting mobility using unique encrypted chargers: A method and system for disabling a mobile unit to handle a call processing function, after being away from its charging unit longer than a predetermined time period, allows a service provider to limit the mobility of the mobile unit with respect to its companion charging unit. Consequently, the service... Agent: Qualcomm Incorporated

20060280307 - Data transmission apparatus and data reception apparatus: There provided are transmission and reception apparatuses which can realize performing key distribution and encrypted communication in a simultaneous manner. A transmission apparatus overlaps minute amplitude modulation based on a random number signal on a multi-level signal generated based on information data and key information. A reception apparatus, in addition... Agent: Wenderoth, Lind & Ponack L.L.P.

20060280308 - Method and apparatus for establishing a key agreement protocol: A system and method for generating a secret key to facilitate secure communications between users. A first and second and a function between the two monoids are selected, the function being a monoid homomorphism. A group and a group action of the group on the first monoid is selected. Each... Agent: Brown, Raysman, Millstein, Felder & Steiner LLP

20060280309 - Systems and methods for providing secure server key operations: A key management interface that allows for different key protection schemes to be plugged into a digital rights management system is disclosed. The interface exposes the functionality of signing data, decrypting data encrypted using a public key, and re-encrypting data encrypted using the public key exported by the interface to... Agent: Woodcock Washburn LLP (microsoft Corporation)

20060274894 - Method and apparatus for cryptography: Provided are example embodiments of a cryptographic method and apparatus thereof. The cryptographic method and apparatus may be implemented in Weierstrass and Hessian forms, and for the point representations, Affine, Ordinary Projective, Jacobian Projective, and Lopez-Dahab Projective. The cryptographic method and apparatus may prevent confidential information from leakage by checking... Agent: Harness, Dickey & Pierce, P.L.C

20060274895 - Transmitter apparatus for mpeg-4 ipmp extended isma media stream: A device which transmits an ISMA media stream subjected to MPEG-4 IPMP extension. An ISMA media stream having an ISMA header and including contents as a payload is constituted, an IPMP tool list descriptor representing, as a tool required for processing of the contents, at least one tool selected from... Agent: Greenblum & Bernstein, P.L.C

20060274896 - Methods and apparatus for providing user anonymity in online transactions: End-to-end user anonymity is provided in electronic commerce or other types of online transactions through the use of an intermediary. An intermediary machine, which may be implemented in the form of a set of servers or other type of computer system, receives communications from a consumer or other user, and... Agent: Ryan, Mason & Lewis, LLP

20060274897 - Communication terminal device and computer device: A communication terminal device includes a wireless communication unit, an integrity measurement request unit, a cryptographic processing unit, a pointing unit. The integrity measurement request unit generates a command to request another computer device to measure integrity. The cryptographic processing unit performs cryptographic processing concerning communication with the another computer... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20060274898 - Key table and authorization table management: A receiver device consistent with certain embodiments that receives and decrypts digital cable or satellite television signals has a receiver that tunes and demodulates the television signal into a digital transport stream. A decrypter decrypts the digital transport stream using a pair of decryption keys. A first decryption key array... Agent: Miller Patent Services

20060274899 - System and method for secure messaging with network address translation firewall traversal: A system for securing communications between a client and an application server comprises a session key management server and the application server. The system enables network address translation firewall traversal. The session key management server comprises a key management application, a session key database, and a notification services application. The... Agent: Timothy P. O'hagan