Cryptography inventions

20090262925 - Method for designing a secure hash function and a system thereof: A system and method for designing a secure hash function is provided. Both of which have been designed for secure hash functionality, Secure Hash Algorithm (SHA-3) using pre processing (MP) methods and to help reduce hash collisions. It is a one way hash function which is a combination of message... Agent: Hedman & Costigan P.C.

20090262926 - Method and apparatus for generating a cryptographic key: In embodiments methods and circuits for generating a cryptographic key, for encrypting and decrypting data with the generated key, for storing and reading the encrypted data using a filename unknown to a running application of a mobile computer application are provided.... Agent: Dickstein Shapiro LLP

20090262927 - Image forming apparatus, and control method thereof: An image forming apparatus of the invention includes a key generating unit to change an encryption key and to generate an encryption key different from the previous encryption key at each time of change, an encryption unit to encrypt image data using the encryption key generated by the key generating... Agent: Turocy & Watson, LLP

20090262928 - Method and apparatus for seeding a cryptographic random number generator: The invention relates to a method and an apparatus for seeding cryptographic random number generators. For seeding a cryptographic random number generator, an image is used. Pixels of the inputted image are selected, each of which is provided with associated position and color information. That position and color information associated... Agent: Fish & Richardson P.C.

20090262929 - Method for secure storage of plural keys in device: A method for securely storing a plurality of keys in a device. The method comprises assigning the device with a random number, the random number being substantially unique to the device; generating an encryption key for encrypting each of the plurality of keys, the encryption key being generated by applying... Agent: Silverbrook Research Pty Ltd

20090262930 - Method for strengthening the implementation of ecdsa against power analysis: A method of inhibiting the disclosure of confidential information through power analysis attacks on processors in cryptographic systems. The method masks a cryptographic operation using a generator G. A secret value, which may be combined with the generator G to form a secret generator is generated. The secret value is... Agent: Blake, Cassels & Graydon LLP

20090262931 - Device, method, and program for image encryption/decryption: In order to encrypt a part of an input image in such a manner that the encrypted part can be located for decryption, means for regularly converting pixel values in the area to be encrypted and generating a pattern unique to the pixel value conversion in order to encrypt the... Agent: Staas & Halsey LLP

20090262933 - Digital content encrypting apparatus and operating method thereof: The invention is directed to a source device and a method for encrypting digital contents at the source device. According to an embodiment, the method includes performing an addition operation by using a first source internal key and an identifier (ID), the first source internal key being associated with the... Agent: Birch Stewart Kolasch & Birch

20090262934 - Digital content encrypting apparatus and operating method thereof: The invention is directed to a source device and a method for encrypting digital content at the source device. According to an embodiment, the method includes authenticating a target device connected to the source device using an identifier (ID) associated with at least one of the target device and a... Agent: Birch Stewart Kolasch & Birch

20090262935 - Digital content encrypting apparatus and operating method thereof: The invention is directed to a source device and a method for encrypting digital contents at the source device. According to an embodiment, the method includes performing a first addition operation by using a first source internal key and an identifier (ID), the first source internal key being associated with... Agent: Birch Stewart Kolasch & Birch

20090262936 - Digital content encrypting apparatus and operating method thereof: The invention is directed to a source device and a method for encrypting digital contents at the source device. According to an embodiment, the method includes receiving digital content from an external device, the digital content being encrypted using a first encryption algorithm in the external device; decrypting the received... Agent: Birch Stewart Kolasch & Birch

20090262932 - Embedding and extraction of information from an embedded content using replica modulation: Apparatus and methods are provided for embedding or embedding digital data into an analog host or cover signal. A distributed signal feature of the cover signal in a particular domain (time, frequency or space) is calculated and compared with a set of predefined quantization values corresponding to an information symbol... Agent: Foley & Lardner LLP

20090262937 - Method and apparatus for data privacy in passive optical networks: One embodiment provides a system for decrypting data frames in an Ethernet passive optical network (EPON). During operation, the system maintains a local cipher counter at a local node, and receives from a remote node a data frame which is encrypted based on a remote input block and a session... Agent: Park, Vaughan & Fleming LLP

20090262939 - Authentication apparatus, system and method: An authentication apparatus includes a communication module, a storage module, a processing module and an authentication module. The communication module, based on a wireless communication protocol, establishes a communication link with an electronic apparatus. The storage module stores a plurality of encryption logics and a plurality of authentication logics corresponding... Agent: Wpat, PC

20090262938 - Method for encrypting and decrypting wireless signals and apparatus thereof: An apparatus for encrypting wireless signals comprises an encryption engine, a transmit packet buffer and a transmit control logic. The encryption engine encrypts the wireless signals. The transmit packet buffer stores the encrypted wireless signals. The transmit control logic forwards the encrypted wireless signal from the transmit packet buffer to... Agent: Wpat, PC Intellectual Property Attorneys

20090262940 - Memory controller and memory device including the memory controller: A memory controller includes a security key and parameter storage unit and a security engine. The security key and parameter storage unit stores at least one security key and at least one parameter that are used during encryption or decryption. The security engine receives encrypted data stored in an external... Agent: F. Chau & Associates, LLC

20090262941 - Techniques for managing keys using a key server in a network segment: The election of a key server is provided. The key server is a single device that broadcasts an encryption key to other devices in a network segment. Also, automatic reelection of a new key server is provided when a current key server becomes unavailable. Key receivers may separately detect that... Agent: Trellis Intellectual Property Law Group, PC

20090262942 - Method and system for managing shared random numbers in secret communication network: A method for managing shared random numbers in a secret communication network including at least one center node and a plurality of remote nodes connected to the center node, includes: sharing random number sequences between the center node and respective ones of the plurality of remote nodes; when performing random... Agent: Mcginn Intellectual Property Law Group, PLLC

20090262943 - Key derivation functions to enhance security: Key derivation algorithms are disclosed. In one key derivation application, a segment of the master key is hashed. Two numbers of derived from another segment of the master key. A universal hash function, using the two numbers, is applied to the result of the hash, from which bits are selected... Agent: Marger Johnson & Mccollom, P.C.

20090262944 - Scrambling of data and reference symbols: The invention relates to a method for scrambling a sequence of symbols comprising at least two reference symbols (R1, R2) and at least one first data symbol (D), said method comprising obtaining a first reference symbol (R1) and a second reference symbol (R2), determining a first scrambling symbol (S1) corresponding... Agent: Dickinson Wright PLLC James E. Ledbetter, Esq.

20090257582 - Block-based stream encryption/decryption processing method: A block-based stream encryption/decryption processing method for applying a matrix architecture of diffusion algebra includes the steps of (a) selecting a private key and a pairing private key; (b) selecting a plaintext and multiplying the plaintext with the private key to produce a ciphertext; (c) multiplying the ciphertext with the... Agent: Charles E. Baxley, Esquire

20090257583 - Cipher feedback with variable block chaining: Some embodiments of a method and apparatus for encrypting and decrypting data have been presented. In one embodiment, a current initialization vector (IV) is generated based on a previous block of plaintext enciphered. Then a current block of plaintext is combined with the current IV to create a temporary block.... Agent: Red Hat/bstz Blakely Sokoloff Taylor & Zafman LLP

20090257584 - Encrypted stream processing circuit and method of processing encrypted stream: An encrypted-stream processing circuit includes: a decryption mechanism decrypting an encrypted stream; a stream-data processing mechanism separating a plurality of packets included in a stream decrypted by the decryption mechanism in accordance with a packet identifier identifying the packet, and creating a partial stream by extracting a part from the... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20090257585 - Organic keyed encryption: An encryption technique that creates a unique encryption key or fingerprint based on unique physical and electrical characteristics of a target electronic assembly to be protected. The encryption key can be constructed by exploiting the manufacturing variances present in all electronic elements including active elements and passive elements. Active elements... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20090257586 - Image processing apparatus and image processing method: An image processing apparatus sections an image to be processed into a plurality of blocks, rearranges the blocks into positions specified by an encryption key that uniquely specifies the positions of the blocks in the image, determines a computing method used to convert pixel values of pixels that form a... Agent: Staas & Halsey LLP

20090257587 - Av data transmission apparatus, av data reception apparatus, and av data transmission and reception system: An AV data transmission apparatus comprising: an encryption unit which encrypts AV data; an AV data transmission unit which transmits the encrypted AV data; a cipher-type-information switching unit which switches cipher type information indicating a cipher scheme used for the AV data, to other cipher type information; and a cipher-type-information... Agent: Wenderoth, Lind & Ponack L.L.P.

20090257588 - Av data transmission apparatus and av data transmission method: An AV data transmission apparatus having two or more output channels, the apparatus comprising: an encryption unit which encrypts AV data using an encryption key; an AV data transmission unit which transmits the encryption key and the encrypted AV data to AV data reception apparatuses from each output channel; an... Agent: Wenderoth, Lind & Ponack L.L.P.

20090257589 - Monitoring camera system, imaging device, and video display device: An imaging device (1) for imaging a subject and distributing the captured video. The privacy of the subject is adequately protected, and a required monitoring function is realized. The imaging device (1) comprises an imaging section (10) for imaging a subject, an encryption key list storage section (13) storing encryption... Agent: Wenderoth, Lind & Ponack L.L.P.

20090257590 - Secure removable card having a plurality of integrated circuit dies: A secure removable card has electrical connections for communication therewith. The card comprises a first integrated circuit die, with the first die including a processor. The card has a second integrated circuit die, with the second die including a non-volatile memory for storing a secret key, and a controller for... Agent: Dla Piper LLP (us )

20090257591 - Method and system for facilitating search, selection, preview, purchase evaluation, offering for sale, distribution, and/or sale of digital content and enhancing the security thereof: A method for controlling the release of an as-rendered configuration of a digital work, comprising the steps of presenting said digital work as a composite of a plurality of layers comprising at least a first layer and a second layer; providing a rendering protocol interface which is adapted for defining... Agent: Ashish K. Mithal

20090257592 - Content transmission system, communication device, and content transmission method: A content transmission system includes: a content transmission device that includes an encryption portion that encrypts content data using key information, a first communication portion that transmits, using a first communication method, content data encrypted by the encryption portion, and a second communication portion that performs communication using a second... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20090257593 - Method and apparatus for secure messaging: A network-based method for secure messaging is performed by: receiving a message sent by a sender to a recipient with a store-and-forward protocol, at a network location. The received message is decrypted at the network location with the sender's encryption key. Then the decrypted message is encrypted at the network... Agent: Sughrue Mion, PLLC

20090257594 - Secure debug interface and memory of a media security circuit and method: A method, system and apparatus of a secure debug interface and memory of a media security circuit and method are disclosed. In one embodiment, a host processor, an external hardware circuit to encrypt an incoming data bit communicated to a debug interface using a debug master key stored at a... Agent: Raj Abhyanker LLP

20090257595 - Single security model in booting a computing device: A method and apparatus for securely booting software components in an electronic device to establish an operating environment are described herein. According to an aspect of the invention, software components are to be executed in sequence in order to establish an operating environment of a device. For each software component,... Agent: Apple Inc./bstz Blakely Sokoloff Taylor & Zafman LLP

20090257596 - Managing document access: Methods, computer program products and systems for protecting a document from access by one or more users based on one or more document access rules. In one embodiment, the method includes creating a data set representing the one or more document access rules, storing the document and the associated data... Agent: Ibm Corp (ibm Austin Iplaw)

20090257597 - Protocol for protecting third party cryptographic keys: A protocol is provided that permits a third-party key issuing entity to have its issued keys protected by an unrelated key protecting entity. In at least some embodiments, a trusted key protecting entity is injected, in a sense, in a conversation between the third-party key issuing entity and a client... Agent: Microsoft Corporation

20090252322 - Method, medium, and system for encrypting and/or decrypting information of microarray: Provided is a method of encrypting information of a microarray. The method includes: acquiring genetic information of a person by scanning the microarray; generating a secret key for identifying the unique property of the person from the acquired genetic information; and encrypting the acquired genetic information by using the generated... Agent: Cantor Colburn, LLP

20090252323 - Methods, techniques and system for maintaining security on computer systems: A hardware device that includes a first interface, a second interface, at least one memory unit, a data analyzer circuitry, and decryption circuitry. The first interface receives image information that is sent to a display. The data analyzer circuitry analyzes the image information to detect encrypted image information. The decryption... Agent: Pearl Cohen Zedek Latzer, LLP

20090252324 - Method and apparatus for providing broadcast service using encryption key in a communication system: A method and apparatus for providing a broadcast service in a communication system is provided. The method includes creating a seed key pair including a first key and a second key, transmitting the seed key pair to a terminal to which the broadcast service is to be provided, creating a... Agent: JeffersonIPLaw, LLP

20090252325 - Secure content pre-distribution to designated systems: Described is a technology by which encrypted content is pre-distributed to recipients during a pre-distribution timeframe, for example to distribute protected content to many clients in a controlled manner. At a release moment, a key for decrypting the encrypted content is released. For example, a software update may be pre-distributed... Agent: Microsoft Corporation

20090252326 - Pseudo-random bit sequence (prbs) synchronization for interconnects with dual-tap scrambling devices: A system for synchronizing interconnects in a link system according to various embodiments can include a computer configured to receive input data at a transmit side, the transmit side including at least one pseudo-random bit sequence scrambler; scramble the input data at the transmit side via the pseudo-random bit scrambler... Agent: Doster Greene , LLC

20090252327 - Combination white box/black box cryptographic processes and apparatus: Method and apparatus for increasing security of a cryptographic algorithm such as deciphering, enciphering, or a digital signature. A cryptographic algorithm and a key are provided such that a deciphering process, for instance, is partitioned between two portions. The portion of the cryptographic algorithm carried out in the first portion... Agent: Apple C/o Mofo Palo Alto

20090252328 - System for securely transmitting mta configuration files: A system for securely transmitting configuration files from a server to a terminal device includes a downloading module, an encrypting module, a signing module, a transmitting module, a transceiver module, a verifying module, and a decrypting module. The downloading module downloads a first configuration file of the terminal device including... Agent: PCe Industry, Inc. Att. Steven Reiss

20090252330 - Distribution of storage area network encryption keys across data centers: Efficient mechanisms are provided for transferring key objects associated with disk logical unit numbers and tape cartridges from one data center to another data center. A request is received to transfer a source data center key object from a source data center to a destination data center. The source data... Agent: Weaver Austin Villeneuve & Sampson LLP

20090252329 - Iptv follow me content system and method: Tools are provided for distributing access-restricted content in an internet protocol television (“IPTV”) environment based on portable entitlement keys. Such tools can include a decoder, an encoder, and a network entitlement handler. The decoder may be configured to receive a key associated with entitlement information, and transmit the entitlement information... Agent: Townsend And Townsend And Crew, LLP

20090252331 - Method of securing typed conversation using encryption keys in a virtual world: The present invention is directed to a method of securing typed conversations using encryption keys when interfacing in a public environment established in a Virtual World, in a Massively Multiplayer Online Role-Playing Game (MMORPG).... Agent: Ibm Corporation (accsp) C/o Suiter Swantz PC Llo

20090252332 - Method for generating downlink frame, and method for searching cell: The present invention relates to a method for generating a downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence determined by a first synchronization signal; generating a second scrambling sequence determined by a first short sequence and... Agent: Lahive & Cockfield, LLP Floor 30, Suite 3000

20090252333 - Method for generating downlink frame, and method for searching cell: The present invention relates to a method for generating a downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence determined by a first synchronization signal; generating a second scrambling sequence determined by a group to which the... Agent: Lahive & Cockfield, LLP Floor 30, Suite 3000

20090252334 - Method for generating downlink frame, and method for searching cell: The present invention relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal;... Agent: Lahive & Cockfield, LLP Floor 30, Suite 3000

20090252335 - Method for generating downlink frame, and method for searching cell: The present invention relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal;... Agent: Lahive & Cockfield, LLP Floor 30, Suite 3000

20090252336 - Method for generating downlink frame, and method for searching cell: The present invention relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal;... Agent: Lahive & Cockfield, LLP Floor 30, Suite 3000