Cryptography inventions 07/07

20070172053 - Method and system for microprocessor data security: Embodiments of the invention relate generally to methods and systems for microprocessor data security, involving data encryption and decryption of stored data in, or in communication with, a computer microprocessor. Such encryption and decryption can be performed on a per-byte basis. Such encryption and decryption involves performing a logic operation... Agent: Bereskin And Parr

20070172054 - Method of managing one-time pad data and device implementing this method: A device stores one-time pad data for use in carrying out various tasks. In order to preserve the ability to carry out important tasks that require the use of one-time data, use of the one-time pad data held by the device is controlled such that an amount of this one-time... Agent: Hewlett Packard Company

20070172057 - Method and device for processing a sequence of video images: The invention discloses a new modulation scheme to prevent illegal copy in movie theaters. None of the existing modulation schemes make the right assumptions to modelize a camcorder device. In such classical schemes, camcorders are always considered as sampling devices without taking into account the effects of shutter speed. The... Agent: Joseph J. Laks, Vice President Thomson Licensing LLC

20070172055 - Apparatus and method for distorting digital contents and recovering the distorted contents: A distorted contents generating apparatus is provided. The distorted contents generating apparatus includes: an initial value generation unit for generating an initial value used to generate a random number for a distorting filter; a random number generation unit for generating a random number for the distorting based on the initial... Agent: Park Law Firm

20070172056 - Television receiver and electronic device: d

20070172058 - Data transmitting apparatus and data receiving apparatus: A data communication apparatus 1 for safely transmitting information data 11 and additional information 14 is provided. In a data transmitting apparatus 101, a random number sequence generating part 111 generates a random number sequence 12 from key information 11. A diffusing part 112 generates diffused additional information 14 by... Agent: Wenderoth, Lind & Ponack L.L.P.

20070172059 - Digital cable television broadcasting receiver: A global platform card manager of the IC card chip includes a conditional access software decoding part. A decoding key specific to each conditional access software vendor and a key identification number corresponding to the decoding key are preset in the conditional access software decoding part. The conditional access software... Agent: Ratnerprestia

20070172060 - Information processing apparatus and key recovery method: According to one embodiment, an information processing apparatus includes a receiving device including a tuner unit which receives broadcast program data, a first nonvolatile memory which stores an encryption key, and an encryption unit which encrypts the broadcast program data, which is received by the tuner unit, based on the... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070172061 - In a subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate: Methods of providing a transport streams are disclosed. In one embodiment, among others, a method comprises receiving an input transport stream having a plurality of packet identifier (PID) streams included therein, the plurality of PID streams comprising first, second, third, and fourth PID streams, decrypting the first PID stream, statistically... Agent: Scientific-atlanta, Inc. Intellectual Property Department

20070172062 - Document validation system and method: The present invention relates generally to the field of self-validating documents in supply chain management, documentation services and method for creating the same.... Agent: Peacock Myers, P.C.

20070172063 - Out-of-band authentication for automated applications (\"bots\"): A technique is disclosed for providing authentication for an automated application (e.g., a BOT) in a presence-based communication system, such as an instant messaging (IM) system or a voice over IP (VoIP) system. The presence-based communication system uses a first communication channel to conduct human-with-human communication and to conduct human-with-BOT... Agent: Lee & Hayes PLLC

20070172064 - Electronic device, control method thereof, security program and others: An electronic device, a control method thereof and a security program are provided which are capable of preventing or suppressing the theft of the electronic device. The electronic device comprises mounting means for loading a portable recording medium and encrypted information write means for encrypting predetermined information using an encryption... Agent: Drinker Biddle & Reath Attn: Intellectual Property Group

20070172065 - Apparatus and method for moving rights object from one device to another device via server: An apparatus and method for transferring a Rights Object (RO)for a content between devices via a server, wherein a sending device converts a first RO taken by itself to encode into a second RO, and sends an RO move request message including the second RO to the server, whereas the... Agent: Birch Stewart Kolasch & Birch

20070172066 - Message security: To provide a secure, effective but simple message handling, a method is provided for transmitting an electrical message, from a first user having a first terminal to a second user having a second terminal. The method comprises the steps of: transmitting said email in an encrypted form by said first... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070172067 - System for selective data transmission: A system and method for selective data transmission is described. The system includes a sender S and a plurality of receivers (R1-R4). The sender has associated encryption means (24) comprising a plurality of base keys (k1-k4). The receivers (R1-R4) each have associated decryption means (34) each comprising a receiver set... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070172069 - Domain management method and apparatus: A method and apparatus of protecting digital content within a domain is provided. if a device registered with a domain withdraws from the domain, a domain key used in the domain before withdrawal of the device is updated to a domain key which cannot be used by the device; and... Agent: Sughrue Mion, PLLC

20070172068 - Methods and devices for counting user equipment units in a mobile radio telecommunication network: For the transmission of an MBMS content to a plurality of user equipment units, the use of a p2m channel may only be beneficial if the number of joined user equipment units exceeds a threshold. However, counting is made difficult due to the fact that idle mode UE, also a... Agent: Philips Electronics North America Corporation

20070165842 - Process and highly secure system for the distribution of audiovisual streams: A process for distributing audiovisual sequences according to an original stream format having a succession of frames, the original stream on which an analysis is made, prior to transmission to client equipment, to generate a first modified main stream and complementary information, then the modified main stream and the complementary... Agent: Ip Group Of Dla Piper US LLP

20070165845 - Method and system for generating a secret key from joint randomness: A method and system for generating a secret key from joint randomness shared by wireless transmit/receive units (WTRUs) are disclosed. A first WTRU and a second WTRU perform channel estimation to generate a sampled channel impulse response (CIR) on a channel between the first WTRU and the second WTRU. The... Agent: Volpe And Koenig, P.C. Dept. Icc

20070165844 - System and method for protecting master encryption keys: A system and method for protecting master transport encryption keys stored on a computing device. Master transport encryption keys are used to secure data communications between computing devices. In one example embodiment, there is provided a method in which a copy of a master transport encryption key is generated and... Agent: Bereskin And Parr

20070165843 - Trapdoor pairings: Systems and methods are described for trapdoor pairing. In one implementation, a trapdoor pairing is a cryptographic primitive generated by determining a bilinear pairing between an elliptic curve group and another group and selecting a parameter of the bilinear pairing, such as a group order or an isogeny between curves,... Agent: Lee & Hayes PLLC

20070165847 - Defined-distribution pseudo-random number generator: The present invention provides a method and an apparatus for generating sequences of pseudo-random numbers. Seed random sequences are used to establish independent pseudo-random sub-processes. Those independent pseudo-random sub-processes are combined through a technique of successive interaction to create final pseudo-random sequences. One set of pseudo-random sub-processes is used to... Agent: Linda Flewellen Gould

20070165848 - Lightweight pseudo-random number generator: A computer implemented method, data processing system, and computer usable code are provided for generating random numbers. The aspects of the present invention receive a request for a number of random numbers and determine common denominators for the number of random numbers. Grid dimensions are determined using the common denominators... Agent: Ibm Corp (ya) C/o Yee & Associates PC

20070165846 - Pseudorandom number generation with expander graphs: Pscudorandom numbers may be generated from input seeds using expander graphs. Expander graphs are a collection of vertices that are interconnected via edges. Generally, a walk around an expander graph is determined responsive to an input seed, and a pseudorandom number is produced based on vertex names. Specifically, a next... Agent: Lee & Hayes PLLC

20070165849 - Online data encryption and decryption: Systems and methods for providing encryption and decryption of data transmitted on a computer implemented network, preferably user authentication identifier data, such as a password, at the point of entry into the user's computer. The systems and methods enable an end user to mentally select a marker from one of... Agent: Winston & Strawn LLP Patent Department

20070165850 - Embedding of signal dependent properties in a media signal: The present invention relates to a method and device for simplifying distribution of a processed media signal and a method and device for distributing a media signal. A properties determining unit (12, 14) determines a set of signal dependent properties (w,a) of a media signal (x). An embedding unit (16)... Agent: Philips Intellectual Property & Standards

20070165851 - Watermark detection: An information signal includes a plurality of watermarks (Wi) which together define a payload of data, such as a rights information. A detector (100) detects the presence (60-62) of each of the plurality of watermarks in the information signal and provides an output (101-103) which can be used to determine... Agent: Philips Intellectual Property & Standards

20070165852 - Watermark detection: A detector (100) detects the presence of a watermark in an information signal. The information signal is correlated with an expected watermark (Wi) for each of a plurality of relative positions of the information signal with respect to the watermark to derive a set of correlation results (64). A metric,... Agent: Philips Intellectual Property & Standards

20070165853 - Method for tracing traitor coalitions and preventing piracy of digital content in a broadcast encryption system: A system, method, and computer program product to find coalitions of receivers who collude to produce pirated protected content, then evaluates the confidence that particular members of each identified coalition are traitors versus innocent receivers incriminated by chance. Typically, each file in a group of original files is modified to... Agent: Marc D. Mcswain IBM Corporation, Intellectual Property Law

20070165854 - Secure system, secure device, terminal apparatus, method and program therefor: IC card (300) supplies an encryption key which enables content use, to a terminal apparatus (200) belonging to a domain made up of terminal apparatuses (200) which share the IC card (300). The IC card (300) includes: an extra-domain usage rule holding unit (305) which stores a rule for use... Agent: Wenderoth, Lind & Ponack L.L.P.

20070165855 - Digital broadcast receiving apparatus: A digital broadcast receiving apparatus, includes: a channel information memory unit which stores the physical channel, a virtual channel, the sub channels, and scrambling information which indicates whether the sub channels are scrambled or not so as to refer the scrambling information to the sub channels; a scrambling judgment unit... Agent: Crowell & Moring LLP Intellectual Property Group

20070165856 - Protecting a gaming machine from rogue code: Systems and methods provide a gaming machine that is protected from the introduction of rogue code. One aspect of the systems and methods includes disabling a user access feature, such as a login or network access feature of an operating system executing on the gaming machine. A further aspect of... Agent: Schwegman, Lundberg, Woessner & Kluth/wms Gaming

20070165857 - Method for transmitting control information on the forward link of a wireless network: A signaling method is provided that can improve the efficiency of forward-link control signaling in OFDM systems. The method involves using a set of forward-link subcarriers that are dedicated for control information, and are shared by a set of two or more users. The control information destined for each user... Agent: Lucent Technologies, Inc.

20070165858 - Pre-expiration purging of authentication key contexts: Various embodiments of methods and apparatuses for managing authentication key contexts are described herein. In various embodiments, the methods and apparatuses include selective purging of authentication key contexts of supplicants even if their authentication keys have not expired.... Agent: Schwabe, Williamson & Wyatt, P.C.

20070165859 - Multiple level access system: A method of securing an object at an access level includes selecting a profile for a user, including a credential having an encrypted credential public key, an encrypted credential public key encryption key, and a multiple-level access identifier. A working key is generated by binding a domain value with a... Agent: Ip Strategies

20070165860 - Method for issuing ic card storing encryption key information: It is possible to issue an IC card storing unique encryption key information in such a manner that re-issuing is enabled and sufficient security can be assured. An IC card provider X delivers an IC card having a group code G(A) to a company A and an IC card having... Agent: Ladas & Parry

20070165861 - Method and electronic terminal for rfid tag type encryption: There is disclosed a method for identifying the type of an RFID tag, comprising the steps of receiving encrypted data from said RFID tag, decrypting said data by at least one decryption method, evaluating if said data has been correctly decrypted by said at least one decryption method, and in... Agent: Hollingsworth And Funk

20070165862 - Laser autocalibration for qkd systems: A method of autocalibrating a quantum key distribution (QKD) system (200) is disclosed. The QKD system includes a laser ((202) that generates photon signals in response to a laser gating signal (S0) from a controller (248). The method includes first performing a laser gate scan (304) to establish the optimum... Agent: OpticusIPLaw, PLLC

20070165863 - System and method for secure pin exchange: A system and method for wirelessly exchanging an encryption key between a first device and a second device. The system generally includes: a transmitter, provided to the first device, for transmitting a signal that is strong enough to transmit over a predetermined distance while having a strength that decreases exponentially... Agent: Bereskin And Parr

20070165864 - Encryption device: An encryption/decryption processing unit performs encryption/decryption processing of data transmitted from a host system, and encryption/decryption processing of key data used for encryption/decryption of the data. A key data buffer temporarily stores encrypted key data. A key data buffer temporarily stores unencrypted key data. An external memory interface controls flash... Agent: Staas & Halsey LLP

20070165865 - Method and system for encryption and storage of information: The invention relates to a method and system for data encryption implemented in conjunction with data transmission over a communications network. According to the invention, an electronic message can be split into at least two parts that are individually forwarded to a receiver (126) via different identities (104, 106, 108,... Agent: Young & Thompson

20070160199 - Copy control apparatus and method thereof, information processing apparatus and method thereof, and content receiving apparatus: A copy control apparatus is provided in one-to-one correspondence with a car navigation system. Connection of the copy control apparatus with an information processing apparatus such as a PC enables to transmit content only from the information processing apparatus to which the copy control apparatus is connected to the car... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070160196 - Protection against power anlysis attacks: An electronic circuit for cryptographic processing, comprising a first combinatorial logical circuit, arranged to perform a first set of logical operations on input data and to produce output data, the output data having a functional relation to the input data, further comprising at least a second combinatorial logical circuit, arranged... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070160197 - Secret information management scheme based on secret sharing scheme: In a secret information management system for managing a secret information of a user, the secret information is divided into a plurality of divided data by using a secret sharing scheme, such that the secret information can be recovered from a prescribed number of the divided data, and a part... Agent: Ndq&m Watchstone LLP

20070160198 - Secure data parser method and system: A secure data parser is provided that may be integrated into any suitable system for securely storing and communicating data. The secure data parser parses data and then splits the data into multiple portions that are stored or communicated distinctly. Encryption of the original data, the portions of data, or... Agent: Fish & NeaveIPGroup Ropes & Gray LLP

20070160202 - Cipher method and system for verifying a decryption of an encrypted user data key: A cipher method for verifying a decryption of an encrypted user data key used to encrypt user data prior to an encryption of the user data key with an encryption key. The cipher method involves a decryption of the encrypted user data key with a decryption key in response to... Agent: Cardinal Law Group

20070160200 - Encryption communication system: If the communication partner of a client node (A1a) is an encryption communication target node (C1), a DNS Proxy unit (A12a) in the client node rewrites a response to a name resolution request for the communication partner node of an application from the actual IP address of the communication partner... Agent: Sughrue Mion, PLLC

20070160201 - Key management for network elements: The invention provides an establishment of a secret session key shared Between two network elements (NEa, NEb) belonging to different network domains (NDa, NDb). A first network element (NEa) of a first network domain (NDa) requests security parameters from an associated key management center (KMC) (AAAa). Upon reception of the... Agent: Ericsson Inc.

20070160203 - Receiver non-repudiation via a secure device: Techniques for assuring a receiver's non repudiation of a communication are provided via cooperation with a secure device. A secure device operates within a local environment of a receiver and exchanges certificates with a sender via the receiver. The sender encrypts data in a communication with the receiver. Separately, the... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070160204 - Microcontroller and authentication method between the controllers: A microcontroller includes a program memory configured to store a program group and a first encryption key; a CPU; and an identification (ID) storage section configured to store an identification data peculiar to a user of the microcontroller. The CPU executes the program group to generate a second encryption key... Agent: Mcginn Intellectual Property Law Group, PLLC

20070160205 - Digital tv, digital broadcasting system and control method thereof: A digital broadcasting system having a digital TV including a broadcasting base station which transmits a broadcasting signal having a program and key combination information configured to control a function by the program; and the digital TV includes a user inputting part having a plurality of keys; a receiving part... Agent: Sughrue Mion, PLLC

20070160206 - Communication method for remote keyless entry system: A system and method provides a wireless link that is adaptive to the current electronic environment. An electronic control unit monitors signals that are proximate the vehicle that make up the current electronic environment. The electronic control unit evaluates these signals along with any other signals proximate the vehicle. The... Agent: Siemens Corporation Intellectual Property Department

20070160207 - Method for matching a reception terminal with a plurality of access control cards: s

20070160208 - Selective and persistent application level encrytion for video provided to a client: A system, apparatus, and method are directed towards allowing ingestion of encrypted content into such as a VOD server, or PVR, or the like by selectively encrypting portions of a content stream based on various selection rules. In one embodiment, the selection rules include leaving selected portions of the content... Agent: Darby & Darby P.C.

20070160209 - Content management method, content management program, and electronic device: Data in a storage medium not using an encryption double key scheme is transferred to a storage medium using an encryption double key scheme. A title key Kt encrypting content data C in an SD audio card SDa is further encrypted by a user key Kua generated in a key... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070160210 - Star pattern partial encryption method: In certain embodiments, a method of partially dual encrypting a digital video signal involves examining unencrypted packets of data in the digital video signal to identify a specified packet type. The specified packet type includes packets occurring in a star pattern approximately situated at approximately a center of an image;... Agent: Miller Patent Services

20070160211 - Purging of authentication key contexts by base stations on handoff: Various embodiments of methods and apparatuses for managing authentication key contexts are described herein. In various embodiments, the methods and apparatuses include purging an authentication key context of a supplicant after handing off the supplicant, even the authentication key has not expired.... Agent: Schwabe, Williamson & Wyatt, P.C.

20070160212 - Modulator autocalibration methods for quantum key distribution: Methods for calibrating the modulators in a QKD system (100) are disclosed. The methods include setting the voltage (VB) of Bob's modulator (MB) to a positive value and then adjusting the voltage (VA) of Alice's modulator (MA) in both the positive and negative direction to obtain overall relative phase modulations... Agent: OpticusIPLaw, PLLC

20070160213 - Efficient handling of messages, data and keys in media access layers for network communications: Disclosed are apparatuses and methods for implementing the Media-access control layer of a network device.... Agent: Sheppard, Mullin, Richter & Hampton LLP

20070160214 - Secure transmission system for a digital trunked radio system: A security system for a digital trunked radio system having a digital control channel and a plurality of working channels, wherein said working channels are assigned for temporary use of individual radio units by digital control signals transmitted over said control channel, said control channel carrying digital control signals between... Agent: Tyco Electronics Corporation

20070154013 - Video information recording apparatus and method, video information reproducing apparatus and method, recording medium, and program: A video information recording apparatus includes a first obtaining unit operable to obtain video information to be recorded; a second obtaining unit operable to obtain thumbnail picture information to be recorded in correspondence with the video information; an encrypting unit operable to encrypt the thumbnail picture information; and a recording... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070154014 - Using a trusted-platform-based shared-secret derivation and wwan infrastructure-based enrollment to establish a secure local channel: A system and method for establishing a trusted connection on a mobile computing device. A shared secret is generated on a trusted platform of the mobile computing device. The shared secret is transported to a secure channel application. The secure channel application establishes a secure local communication channel between the... Agent: Intel Corporation C/o Intellevate, LLC

20070154015 - Method for cipher key conversion in wireless communication: The present invention provides a method for authenticating a mobile unit in a wireless communication system. The method includes accessing information indicative of a random number and of a first key formed using a first cryptographic function. The method also includes forming second and third keys based on the random... Agent: Mark W. Sincell Williams, Morgan & Amerson, P.C.

20070154017 - Method for transmitting security context for handover in portable internet system: A method for transmitting a handover security context of a first access point, when an access terminal from a service cell of a first access point is connected to a packet access router, to a service cell of a second access point connected to the packet access router, is provided.... Agent: The Farrell Law Firm, P.C.

20070154016 - Token-based distributed generation of security keying material: A method and apparatus for delegating distribution of security keying material for the communication path between a mobile entity and a network service function, to the mobile entity. An authorization token is issued to the mobile entity which then supplies security keying material for the communication path. The keying material... Agent: Motorola, Inc.

20070154018 - Method and apparatus for cryptographically processing data: A method and apparatus cryptographically process data including a plurality of data segments. The cryptographic process includes (a) receiving a plurality of data segments, (b) selecting, for each data segment, a set of encryption information based on data contained in a predetermined portion of the data segment to be encrypted,... Agent: Fulbright And Jaworski LLP