Cryptography inventions 12/07

20070297601 - Modular reduction using folding: Techniques are described to determine N mod M, where N is a number having a width of n-bits, and M is a number having a width of m-bits. The techniques, generally, involve determining N′=NH2f mod M+NL and, subsequently, determining N′ mod M... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC C/o Portfolio Ip

20070297602 - Multimedia output device having embedded encryption functionality: A multimedia output device having embedded encryption functionality enables the outputting of content in an encrypted form. The multimedia output device receives the content to be encrypted, encrypts the content, and generates an electronic output of the encrypted content. The multimedia output device also generates an associated paper output that... Agent: Fenwick & West LLP

20070297603 - System for securing access to data streams: A method for protecting digital content is described. The method includes receiving compressed encrypted digital content (810), determining an output format based, at least in part, on all of the following: a user-requested output format; received control information; and a rule determining whether a clear compressed output format is allowed... Agent: Ladas & Parry

20070297604 - System and method of parental control over multimedia: A device-independent authentication system and method allows a parent to control access to selected versions of multimedia content to prevent some viewers from viewing inappropriate material. The multimedia content may be, for example, one or more different versions of the same movie or game distributed on a disk, or a... Agent: Coats & Bennett/sony Ericsson

20070297605 - Memory access control apparatus and method, and communication apparatus: A memory access control apparatus includes a scramble key storing unit for storing an input scramble key and a scramble unit for assigning a physical address to be actually accessed in a memory to an input logical address by using the stored scramble key to scramble the input logical address.... Agent: Bell, Boyd & Lloyd, LLP

20070297606 - Multiple key security and method for electronic devices: A secure processing system is provided with increased flexibility to secure different categories of data from different entities (e.g., different users or stakeholders) both from external access and from other entities that use the same system. In one embodiment, the secure processing system includes a host processor and a secure... Agent: Ingrassia Fisher & Lorenz, P.C. (fs)

20070297607 - Video distribution system: A video distribution system that distributes encrypted video data, using improved encryption keys. A master content key is set as the highest-order key. One or more elements (unique camera ID, generation number, access list, time), and the order thereof, are set for the generation of keys (unique camera key, camera... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070297608 - Encrypting data for access by multiple users: A method for protecting data for access by a plurality of users. A server encrypts data using a master key and a symmetric encryption algorithm. For each authorized user, a key encryption key (KEK) is derived from a passphrase, and the master key is encrypted using the KEK. The server... Agent: Schmeiser, Olsen & Watts

20070297610 - Data protection for a mobile device: A network-based data protection scheme for a mobile device utilizes encryption techniques and a remote key server that stores encryption keys on behalf of the mobile device. The mobile device stores encrypted data, preferably having no unencrypted counterpart stored therewith. On an as-needed basis, the mobile device requests a decryption... Agent: Microsoft Corporation

20070297609 - Secure wireless heartbeat: A wireless communications link may be made more secure by imposing additional security measures at the application level to create a secure channel. These measures are compatible with and transparent to any security measures which are applied at the link level. A secure keep-alive heartbeat may be created on the... Agent: Integral Intellectual Property Inc.

20070297611 - Method for security association negotiation with extensible authentication protocol in wireless portable internet system: The present invention relates to a security association negotiation method of extensible authentication protocol (EAP) for authenticating a subscriber station user in a wireless portable Internet system. An exemplary security association negotiation method using a user authentication in a wireless portable Internet system according to an embodiment of the present... Agent: The Farrell Law Firm, P.C.

20070297612 - Method, device and system of encrypted wireless communication: Some demonstrative embodiments of the invention include devices, systems and/or methods of encrypted wireless communication. Some demonstrative embodiments of the invention include a wireless transmitter to generate an encrypted wireless transmission corresponding to an input signal. The transmission may include at least first and second encrypted streams of symbols encrypted... Agent: Eitan Mehulal Law Group

20070297613 - Secure group communication among wireless devices with distributed trust: In one embodiment, a method of forming a secure group from a plurality of nodes for communicating with a user A comprises performing a discover protocol, wherein after performing the discover protocol, all nodes belong to at most one small group and wherein all nodes in each small group share... Agent: Honeywell International Inc.

20070297614 - Device, system and method for fast secure message encryption without key distribution: One party sends a securely encrypted message to a second party. Each party chooses a secret message key for the message, which is never shared with or transmitted to any other party. The message is sent by means of three encrypted messages. The first encrypted message is sent from the... Agent: Law Office Of Jay R. Yablon

20070297615 - Computing device with a process-based keystore and method for operating a computing device: A computing device is provided with a key manager which provides a mechanism for distinguishing between authorised use and unauthorized use of a cryptographic key by identifying an owning application for each key, which is authorised by the key manager to freely use a particular key, and is also trusted... Agent: Synnestvedt Lechner & Woodbridge LLP

20070291933 - Method and system for reusing an mmh function to perform a fast mmh-mac calculation: A transmitting and receiving device share a secret which is split into first and second portions. A public function is used to generate a keystream. The length of the keystream is adjusted to equal the length of a message plus the length of the output of an MMH function. The... Agent: Arris International, Inc

20070291935 - Apparatus for supporting advanced encryption standard encryption and decryption: An apparatus for supporting advanced encryption standard encryption and decryption combines bytes substitution and inverse bytes substitution operations, and includes first and second matrix operation devices, first and second exclusive-OR operation modules, first and second multiplexers, and a table-look-up device. The first multiplexer selects one from the outputs of the... Agent: Rabin & Berdo, PC

20070291934 - Method, system and computer program for polynomial based hashing and message authentication coding with separate generation of spectrums: Computer software or integrated circuit for performing a secure hashing method including one or more of the following: representing an initial sequence of bits as a specially constructed set of polynomials; transformation of this set by masking; partitioning the transformed set of polynomials into a plurality of classes; forming the... Agent: Kramer & Amado, P.C.

20070291936 - Consumer-driven secure sockets layer modulator: A software system and method for executing secure commercial transactions online is disclosed. The system intercepts and verifies, against consumer provided inputs, Secure Socket Layer (SSL) communications from normal Web browser usage. The system can include a software module loaded onto the consumer's client computer, and which uses independently-derived look-ups... Agent: Mintz, Levin, Cohn, Ferris, Glovsky And Popeo, P.c

20070291937 - Cryptographic processing apparatus: An apparatus and a method for performing a hyperelliptic curve cryptography process at a high speed in a highly secure manner are provided. A base point D is produced such that the base point D and one or more of precalculated data in addition to the base point used in... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070291938 - System, method and apparatus for transmitting high definition signals over a combined fiber and wireless system: A system, method, and apparatus that improves the efficiency of HD content delivery systems. An embodiment of the invention eliminates unnecessary encoding overhead due to TMDS encoding in HD content delivery systems. An embodiment of the invention further allows for increased error protection at lower overhead in HD content delivery... Agent: Fiala & Weaver, P.l.l.c. C/o Intellevate

20070291939 - Method and system for transmission of uncompressed video over wireless channels: A method and a system for transmitting uncompressed video over a communication medium such as wireless channel, is provided. For each pixel of video information, at least one portion of the pixel information is encrypted to generate encrypted data, and then the encrypted data is encoded for transmission error recovery.... Agent: Kenneth L. Sherman, Esq. Myers Dawes Andras & Sherman, LLP

20070291940 - Selective encryption encoding: In certain embodiments, a selective encryption encoder has a packet identifier that identifies packets of a specified packet type. The specified packet type includes packets carrying data representing a video slice wherein the video slice contains a larger amount of data than a threshold amount of data. A packet duplicator... Agent: Miller Patent Services

20070291941 - Methods for encrypting and compressing video: A method for compressing and transmitting a sequence of video frames represented by arrays of digital pixel values includes the following steps: transmitting a representation of a first frame (I1) of the sequence; deriving a sorting permutation P1 of the first frame; using the sorting permutation of the first frame,... Agent: Martin Novack

20070291942 - Scene change detection: In certain embodiments, a method of detecting a scene change in a digital video signal involves examining a slice of the digital video signal; determining if the slice contains a greater amount of data than a threshold amount of data; and if the slice contains a greater amount of data... Agent: Miller Patent Services

20070291943 - Method and apparatus for encrypting and decrypting information: An encryption key is generated in response to a plurality of information pieces being bases for the encryption key. Original information is encrypted into encryption-resultant information in response to the generated encryption key. The encryption-resultant information is divided into units. Each of the units is loaded with encryption control information... Agent: Louis Woo Law Office Of Louis Woo

20070291944 - Methods and systems for blackout provisioning in a distribution network: Methods and systems for blackout provisioning in a communication network. In an aspect, a method is provided for blackout provisioning in a distribution network. The method includes determining one or more affected regions, and generating a blackout key based an original key and the affected regions. The method also includes... Agent: Qualcomm Incorporated

20070291945 - Distributed wireless security system: A low-cost security management system for a wireless network utilizes client software having one component that runs on trusted access points and another that runs on wireless client cards on a client PC and/or laptop that enables an administrator to log in and check the status of network security from... Agent: Macpherson Kwok Chen & Heid LLP

20070291946 - Wireless communication system, wireless communication apparatus, and method of exchanging cryptography key between wireless communication apparatuses: A wireless communication system according to an embodiment of the present invention includes a first communication apparatus and a second communication apparatus transmitting/receiving encrypted communication data by radio. The first communication apparatus includes: a first encrypting/decrypting unit encrypting the communication data and decrypting the encrypted communication data; a first interface... Agent: Young & Thompson

20070291947 - Cryptographically controlled radio transmitter and receiver: A cryptographically controlled transmitter/receiver having transmission characteristics comprising a media access control layer having one or more media access parameters, a physical layer having one or more physical parameters, a radio frequency layer having one or more radio frequency parameters, a code generator configured to generate and send code words... Agent: Renner Kenner Greive Bobak Taylor & Weber

20070291948 - User key allocation method for broadcast encryption: A user key allocation method for broadcast encryption is provided. The user key allocation method includes generating a plurality of subsets by dividing one group including a plurality of nodes to sub-groups and allocating key sets with respect to the subsets, respectively. The nodes included in the subset may be... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20070286413 - Cryptographic systems for encrypting input data using an address associated with the input data, error detection circuits, and methods of operating the same: A cryptographic system includes encryption logic that is configured to encrypt input data by performing a mask operation on the input data using an address associated with the input data.... Agent: Myers Bigel Sibley & Sajovec

20070286415 - Aes encryption circuitry with ccm: Circuitry for encrypting at least a part of an input data flow and generating a tag based on the input data flow with the same ciphering algorithm and the same key including a first ciphering branch arranged to encrypt the at least part of the input data; a second ciphering... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20070286416 - Implementation of aes encryption circuitry with ccm: Circuitry for encrypting at least a part of an input data flow and generating a tag based on the input data flow with the same ciphering algorithm and the same key, the algorithm including iterative computations by at least two operation units, the circuitry including a pipeline including an input... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20070286414 - Baud rate modulation encoding/decoding method and device for remote controller: The present invention generally relates to encoding/decoding method and device used for remote controller, which utilizes baud rate to encrypt data for transmission. The encoding device of the present invention comprises an encoder for encoding an identification code into an encrypted code; an interpreter for interpreting the un-encoded portion of... Agent: Bruce H. Troxell

20070286417 - Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system: The present invention is directed towards providing a partial dual-encrypted stream in a conditional access overlay system. The headend equipment includes an aligner, identifier, and remapper (AIR) device (615) that receives a clear stream and one or two encrypted streams, where the two encrypted streams have been encrypted by two... Agent: Scientific-atlanta, Inc. Intellectual Property Dept. Ms 4.3.510

20070286418 - Simple universal hash for plaintext aware encryption: A simple universal hash apparatus and method include input means for inputting at least one of a plurality of Plaintext blocks into an integrity aware encryption scheme using at least one of two secret keys to obtain a plurality of Ciphertext blocks; Plaintext checksum means for computing a Plaintext checksum... Agent: F. Chau & Associates, LLC

20070286419 - Efficient video delivery in legacy 802.11 infrastructure enviroments: The invention describes a method of efficient way of video delivery in the legacy (non-802.11e) infrastructure networks and a device (Transmitter) based on this method. The invention permits the video stream to bypass the access point and therefore increases the available bandwidth by a factor of two or more and... Agent: Alexander Tesler

20070286420 - Encryption of video content to vod services and networked personal video recorders using unique key placements: A network device and method are directed towards providing one time content encryption for Video on Demand (VOD) broadcast services and Networked Personal Video Recorders (NPVRs) using unique encryption keys. As content is received by the network device, it is determined whether the content is for broadcast distribution to a... Agent: Darby & Darby P.C.

20070286421 - Digital content distribution system and method: A content distribution system and method which prevents unauthorized access to secured content such as movies and music. The system includes a source, a receiver, an authorized security device such as a conditional access module (CAM) for decrypting authorized content and an output device for outputting content. The system can... Agent: Digital Video Express David Grossman

20070286423 - Information processing system, method, and apparatus, and program: Disclosed herein is an information processing system including: a first information processing apparatus for transmitting a content including video and audio signals; and a second information processing apparatus for receiving the content. The first apparatus includes: a first key generator configured to generate a first key; a video encryptor configured... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20070286422 - Method and apparatus for supporting broadcast efficiency and security enhancements: A method and apparatus for providing conditional access to media programs is described. An exemplary method comprising the steps of transmitting media information encrypted according to a control word (CW) to a receiver station, transmitting entitlement management information (EMI) to the receiver station, the EMI comprising a service bitmap, and... Agent: Gates & Cooper LLP Howard Hughes Center

20070286424 - Method and a system for securing processing of an order by a mobile agent within a network system: The present description refers to a method for securing processing of an order by a mobile agent from a first server (S0) within a network system with a plurality of servers (S0, S1, . . . ,Sn), at least a number of which the mobile agent has to pass according... Agent: Schwegman, Lundberg & Woessner/sap

20070286425 - Communication system, wireless communication apparatus, and communication method: In a communication system, a first wireless communication apparatuses belonging to a communication group receives a connection request frame including a notifying security level from a second communication apparatus outside of the communication group. The first communication apparatus stores a reference security level peculiar to the communication group, which is... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20070280474 - Encryption method: An encryption method for encrypting byte represented text. A code key is first constructed from code text data by forming pair groups of data from the key text data. Each pair group includes a sequential text data byte from the key text data or an index to a pair group... Agent: Gifford, Krass, Sprinkle,anderson & Citkowski, P.c

20070280475 - Monolithic semiconductor integrated circuit and method for selective memory encryption and decryption: A monolithic semiconductor integrated circuit is provided for selectively encrypting or decrypting data transmitted between one of a plurality of devices on the circuit and an external memory. Two series of data pathways connect the devices and the external memory. The first series of data pathways passes through a cryptographic... Agent: Seed Intellectual Property Law Group PLLC

20070280476 - System and method for providing ciphered and deciphered contents to user, and related computer readable medium: A set of users is divided into subsets, and a decipher key is generated for each subgroup by using different key generation polynomials. A session key, that is, a decipher key for ciphered data is distributed so as to be deciphered with the decipher key of each user. Decipher keys... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20070280477 - Method and system for providing conditional access authorizations to a mobile receiving device: A system and method for providing conditional access authorizations in a satellite-receiving system includes generating a conditional access signal at a head-end 20, receiving the conditional access signal at a fixed satellite receiver 54. The conditional access signal is communicated from the fixed satellite receiver 54 to a mobile satellite... Agent: The Directv Group, Inc. Patent Docket Administration

20070280478 - Data security system and method for high bandwidth bus: A data security system for a high bandwidth bus comprises a circular shift register operable to load a variable key value, and a scrambler coupled to the circular shift register operable to receive the variable key value from the circular shift register and serially scramble a serial data input in... Agent: Haynes And Boone, LLP

20070280480 - Method and system to provide secure exchange of data between mobile phone and computer system: Systems and methods of providing a secure access layer in a mobile phone and a computer system coupled to the mobile phone to provide authentication for transmitting data between the phone and the computer system.... Agent: Greenberg Traurig, LLP (sv)IPDocketing

20070280479 - Systems and methods for added authentication in distributed network delivered half-duplex communications: In half-duplex communications over a wireless network, a user from a private organisation sends the request for half-duplex communication through a private server controlled by the private organisation. The private server sets up a private account with the wireless carrier and the user communicates via the private account.... Agent: Smart & Biggar P.o. Box 2999, Station D

20070280481 - Method and apparatus for multiple pre-shared key authorization: A system and method of providing security in a wireless network is provided. A plurality of pre-shared keys is created. Each pre-shared key provides access to the wireless network. A list of the plurality of pre-shared keys is transmitted to an access point device in the wireless network so that... Agent: General Instrument Corporation Dba The Connected Home Solutions Business Of Motorola, Inc.

20070280482 - Key distribution method: A key distribution method for the next generation network (NGN), includes steps of: (a) a terminal sending a registration request message to a soft switch; (b) the soft switch sending an authentication request message to an authentication center; (c) the authentication center authenticating the terminal, then the soft switch distributing... Agent: Merchant & Gould PC

20070280483 - Methods and systems for key recovery for a token: Methods, systems and computer readable mediums are provided for recovering keys. A key transport session key is generated, and a key encryption key is derived based on a server master key and an identification associated with a token. The key transport session key is encrypted with the key encryption key... Agent: Mh2 Technology Law Group (cust. No. W/red Hat)