Cryptography inventions 08/09

20090214024 - Block cipher using multiplication over a finite field of even characteristic: An input block of data and a key that includes multiple sub-keys are received by a block cipher. A nonlinear substitution is performed on at least a portion of the data, wherein the nonlinear substitution is achieved by multiplying the portion of the data by one of the sub-keys over... Agent: Daniel E. Ovanezian Blakely, Sokoloff, Taylor & Zafman LLP

20090214023 - Method for elliptic curve scalar multiplication: The method for elliptic curve scalar multiplication may provide several countermeasures to protect scalar multiplication of a private key k by a point P to produce the product kP from power analysis attacks. First, the private key, k, is partitioned into a plurality of key partitions, which are processed in... Agent: Litman Law Offices, Ltd.

20090214025 - Method for scalar multiplication in elliptic curve groups over prime fields for side-channel attack resistant cryptosystems: A method and device for transforming data with a secret parameter in an elliptic curve cryptosystem based on an elliptic curve defined over an underlying prime field, includes multiplying a point of the elliptic curve; representing the data to be transformed, by a scalar representing the secret parameter, wherein the... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090214026 - Method and apparatus for optimizing advanced encryption standard (aes) encryption and decryption in parallel modes of operation: The throughput of an encryption/decryption operation is increased in a system having a pipelined execution unit. Different independent encryptions (decryptions) of different data blocks may be performed in parallel by dispatching an AES round instruction in every cycle.... Agent: Intel Corporation C/o Cpa Global

20090214027 - Protecting against security attack: A communication device having a private key and configured to implement an elliptic curve security mechanism for successful operation of which it: (a) receives a first value from another device, (b) computes a second value as the scalar multiplication of the first value with its private key and (c) returns... Agent: Greenberg Traurig LLP (la)

20090214030 - Apparatus and method for processing fragmented cryptographic keys: A system includes a set of private key fragments distributed across a set of networked resources. Each private key fragment independently produces a fractional cryptographic result. A combination module on a designated networked resource combines a sufficient number of fractional cryptographic results to produce an operable cryptographic result. A method... Agent: Cooley Godward Kronish LLP Attn: Patent Group

20090214028 - Generating session keys: A method and apparatus for generating shared session keys. The method and apparatus does not rely on strong random number generation. The first node sends a timestamp and random sequence to the second node. The second node generates a message authentication code (MAC) using this data and a shared secret... Agent: Red Hat/bstz Blakely Sokoloff Taylor & Zafman LLP

20090214029 - Unified broadcast encryption system: A system and method is disclosed for performing unified broadcast encryption and traitor tracing for digital content. In one embodiment a media key tree is divided into S subtrees, the media key tree including media keys and initial values, which may be random values. The digital content is divided into... Agent: Law Office Of Donald L. Wenskay

20090214031 - Unified broadcast encryption system: A system and method is disclosed for performing unified broadcast encryption and traitor tracing for digital content. In one embodiment a media key tree is divided into S subtrees, the media key tree including media keys and initial values, which may be random values. The digital content is divided into... Agent: Law Office Of Donald L. Wenskay

20090214032 - Method and apparatus for detection of loss of cipher synchronization: Detecting loss of stream cipher synchronization between a transmitter and a receiver in a video processing system may be achieved by receiving, by the receiver, an encrypted video frame from the transmitter, obtaining an encrypted value for a selected pixel in the encrypted video frame, decrypting the encrypted pixel value... Agent: Intel Corporation C/o Cpa Global

20090214033 - Image encryption apparatus and image decryption apparatus: Area data indicating an encryption area of image data and level data indicating an authority level for the encryption area are received. Upon being triggered by an input password, an encryption key is generated for each received authority level. Check data to be detected in verifying whether or not the... Agent: Staas & Halsey LLP

20090214034 - Systems and methods for enabling electronic messaging with recipient-specific content: The present invention is directed to a system and method for enabling electronic messaging with recipient-specific content, wherein multiple recipients may view non-private information and less than all recipients may view non-private information. In one embodiment, an author may select between two messaging processing algorithms to send messages to recipients,... Agent: Hansra Patent Services

20090214036 - Authentication mechanisms for wireless networks: Security techniques and security mechanisms for wireless networks that transmit content such as advertisements. According to exemplary techniques, control messages comprising unrequested content (e.g., advertisement data) may be transmitted in response to a request from a client device, while in other exemplary techniques the control messages may be transmitted without... Agent: Wolf Greenfield (microsoft Corporation) C/o Wolf, Greenfield & Sacks, P.c.

20090214035 - Method and apparatus for secure communication in a digital two way radio protocol: A method and apparatus for secure communication in a digital two way radio protocol is disclosed herein. The method includes the step of, at an originating radio, generating at least one control value (505). The method further includes the step of generating an encryption key based on the at least... Agent: Motorola, Inc

20090214039 - Method and system for short-range mobile device communication management: A method and system for managing short-range mobile device communications are provided. The method includes receiving a user-defined criteria for requested information. The method includes automatically detecting a set of in-range devices, wherein each in-range device is associated with an identifier. The method includes receiving a broadcasted public information from... Agent: Perkins Coie LLP

20090214037 - Methods and apparatuses to secure data transmission in rfid systems against eavesdropping: Methods and apparatuses to secure data transmission in a radio frequency identification (RFID) system and other Vernam-cipher based cryptography methods against eavesdropping. In one embodiment, a method implemented in an RFID system includes generating an encryption key using previously shared information and random information received in a current communication session... Agent: Greenberg Traurig, LLP (sv) Ip Docketing

20090214038 - Security-enhanced rfid system: The present invention relates to RFID systems. In particular, the invention relates to an RFID system having enhanced security of communication between a tag and a tag reader. In a first aspect of the present invention there is provided an RFID system comprising at least one RFID reader; control means... Agent: Tarolli, Sundheim, Covell & Tummino L.l.p.

20090214041 - Image forming apparatus, data processing method, and computer readable recording medium: A disclosed image forming apparatus has a cryptographic unit for performing a cryptographic function. The image forming apparatus includes a first managing unit for managing data representing first lists of cryptographic strengths authorized to be used separately for each subject that uses the cryptographic function; and a second managing unit... Agent: Harness, Dickey & Pierce, P.L.C

20090214040 - Method and apparatus for protecting encryption keys in a logically partitioned computer system environment: In a logically partitioned computer system, a partition manager maintains and controls master encryption keys for the different partitions. Preferably, processes executing within a partition have no direct access to real memory, addresses in the partition's memory space being mapped to real memory by the partition manager. The partition manager... Agent: Ibm Corporation Rochester Ip Law Dept. 917

20090214042 - Content playback apparatus, content playback method, computer program, key relay apparatus, and recording medium: A content playback apparatus reduces load concentration on a specific server apparatus that manages content keys of encrypted content, while protecting copyrights of the content. The content apparatus makes playback of content recorded in a recording medium sold possible after the specific server breaks down. A key acquisition control unit... Agent: Wenderoth, Lind & Ponack L.l.p.

20090214043 - Key distribution method and authentication server: A method of and an authentication server for distributing a key are disclosed. According to an embodiment of the present invention, the method of distributing a key, which is distributed by an authentication server connected with wireless terminals through a communication network, for encrypting and decrypting data in accordance with... Agent: Neal, Gerber, & Eisenberg

20090214044 - Data archiving technique for encrypted data: Systems and methods for decryption and encryption for data being archived at archive storage systems. The system includes an archive storage coupled to host and client computers and optionally to a network attached storage. The data arriving at the archive storage may contain encrypted data. The encrypted data may be... Agent: Sughrue Mion, Pllc

20090207997 - Elliptic curve cryptosystem apparatus, storage medium storing elliptic curve cryptosystem program and elliptic curve cryptosystem arithmetic method: A scalar multiplication can be performed on an elliptic curve cryptosystem at a high speed. P is set as an initial value of Q[0], and 2×P is set as an initial value of Q[1]. An elliptic curve doubling ECDBL of Q[d[i]] is performed, and an arithmetic result is stored in... Agent: Staas & Halsey LLP

20090207998 - Determining unique material identifier numbers using checksum values: A system and method for determining unique material identifier numbers using checksum values are disclosed herein. The system and method involves providing a set of data, loading the set of data into at least one processor, using at least one algorithm with at least one processor to calculate a checksum... Agent: Greenberg Traurig LLP (la)

20090207999 - Decryption processing apparatus, system, method, and computer program product: In a decryption processing apparatus, a decompression processing unit performs a map to pieces of compressed data included in a compressed encrypted data, thereby obtaining the pieces of the encrypted data having each of the pieces of the compressed data decompressed, the decompression map being a process of inputting the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090208001 - Instant messaging private tags: Systems for instant messaging private tags preferably comprise a parser for parsing an instant message for sensitive data and an encryption engine for encrypting the sensitive data. A modified uuencoder is also preferably included for converting the encrypted sensitive data into a data stream that complies with an XML format.... Agent: At & T Legal Department - Ws Attn: Patent Docketing

20090208000 - Signature management method and signature management device: A signature management apparatus and method of cutting-out streaming data. The signature management apparatus includes a signature-related information preparing device which prepares signature-related information for streaming data, a signature-related information storage device which partitions a sequence header of the streaming data into stream header information needed for reproduction of the... Agent: Staas & Halsey LLP

20090208003 - Authentication method, host computer and recording medium: According to one embodiment, a host computer updates the media key block MKB in a first updatable memory device in the case where the version number of the media key block MKB read from a recording medium is newer than that of the media key block MKB in the first... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090208002 - Preventing replay attacks in encrypted file systems: Replay attacks in an encrypted file system are prevented by generating a session key and providing the session key to one or more drive managers and an encrypted file system process. When a drive request is received by the encrypted file system process the drive request is encrypted using the... Agent: Ibm Corporation- Austin (jvl) C/o Van Leeuwen & Van Leeuwen

20090208004 - File encrypting/decrypting method, apparatus, program, and computer-readable recording medium storing the program: A file encrypting/decrypting program makes a computer execute a process including a step of creating a session key (a1); a step of encrypting a file (f1) with the key (a1), thereby creating a file (f2); a step of encrypting the key (a1) with a public key (b1), thereby creating a... Agent: SocalIPLaw Group LLP

20090208005 - Key generating device, encrypting device, receiving device, key generating method, encrypting method, key processing method, and program: A key generating device according to an embodiment of the present invention includes: a parameter determining unit that randomly determines a plurality of parameters that are needed when generating a secret key and a public key; a bilinear group selecting unit that selects a plurality of bilinear groups and bilinear... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090208006 - Encryption system for satellite delivered television: A television content delivery system consistent with certain embodiments has a receiver system that receives television content from a plurality of content suppliers. A selective multiple encrypter selectively multiple encrypts the television content, wherein the resultant selectively multiple encrypted content stream is encrypted under at least one conditional access system... Agent: Miller Patent Services

20090208007 - Encryption device, a decrypting device, a secret key generation device, a copyright protection system and a cipher communication device: An encryption device, a decrypting device, a secret key generation device, a copyright protection system and a cipher communication device including: a CRL memory unit memorizing a CRL, a device key ring memory unit memorizing a specific device key KD_A in every IC card used in a decrypting device, a... Agent: Wenderoth, Lind & Ponack L.L.P.

20090208008 - Digital watermarking with spatiotemporal masking: Visually imperceptible distortion, from watermarking or compression, desired for embedding into frames of a video sequence is computed. Within each spatiotemporal region of the frames, points are counted, which have feature information amplitude that at least equals the desired distortion. In each region, a fraction of the points with magnitudes... Agent: Dolby Labratories Inc.

20090208009 - Rotation of keys during encryption/decryption: An encrypted program received in an MPEG transport stream is decrypted by receiving a message in the MPEG transport stream, wherein the message contains a key, decrypting the encrypted program based on the key, and replacing the message in the MPEG transport stream with a null packet.... Agent: Zenith Electronics LLC

20090208010 - System for traceable decryption of bandwidth-efficient broadcast of encrypted messages and security module revocation method used for securing broadcasted messages: The present invention makes use of techniques such as those described by Boneh and Franklin to allow for the realisation of a pseudo-asymmetric encryption scheme whereby one public encryption corresponds to a plurality of private decryption keys. This scheme therefore provides a solution to the problem of inefficient use of... Agent: Harness, Dickey & Pierce, P.L.C

20090208011 - Method, system and computer product for securing patient identity: A method for securing patient identity comprising accessing an electronic medical records database including patient data for a plurality of patients. Each patient in the electronic medical records database is assigned a unique patient identifier. Patient data for a first patient, including a first patient identifier, is retrieved from the... Agent: Hanley, Flight & Zimmerman, LLC

20090208012 - Decryption system and related method thereof: A decryption system is provided. The decryption system includes a first RFID tag, a second code providing apparatus and a decryption module. The first RFID tag is for storing an encrypted data generated by encrypting an original data according to a first code. The second code providing apparatus is for... Agent: North America Intellectual Property Corporation

20090208013 - Wireless network handoff key: The present invention provides a method and system for handoff in a wireless communication network. In one embodiment, a common handoff encryption key is generated by an authentication server and transmitted to a first access point and a second access point. The first access point transmits the handoff encryption key... Agent: Haynes And Boone, LLPIPSection

20090208018 - Data transfer device: A data transfer device for transferring data to a removable data storage item. The data transfer device receives content data to be stored to the removable data storage item, encrypts the content data using an encryption key, and transforms at least one of predetermined reference data and the encryption key.... Agent: Hewlett Packard Company

20090208016 - Domain digital rights management system, license sharing method for domain digital rights management system, and license server: Disclosed is a domain DRM system, a license sharing method for the domain DRM system, and a license server. The domain DRM system includes at least one domain including at least one user module adapted for encryption or decryption using a provided encryption key and a domain manager adapted for... Agent: Ratnerprestia

20090208019 - Method and apparatus for encrypting/decrypting data: The present invention relates to a method and apparatus for encrypting data (105) by means of a first key (115), and a method and apparatus for decrypting encrypted data by means of a second key (185). The present invention alleviates the need for exact key information by allowing encryption of... Agent: Philips Intellectual Property & Standards

20090208014 - Method and apparatus for verifying and diversifying randomness: Method and apparatus for ensuring randomness of pseudo-random numbers generated by a conventional computer operating system or electronic device. Typically pseudo-random number generators used in computer operating systems or electronic devices may be penetrated by a hacker (pirate), who penetrates a cryptographic or other supposedly secure process using the random... Agent: Apple C/o Mofo Palo Alto

20090208020 - Methods for protecting from pharming and spyware using an enhanced password manager: Methods implemented by enhanced Password Manager for protecting against Pharming and Spyware comprising matching a saved record with certificate of website and withholding saved record's data if a match is not found. Further comprising, scrambling of retrieved data with a scrambling key wherein said key is synchronized with website.... Agent: Amiram Grynberg

20090208015 - Offline consumption of protected information: The offline consumption and publication of protected information in a networked environment. The offline consumption of protected information is accomplished by having the consuming user maintain a store of asymmetric encryption keys. The protected information is encrypted by the publishing user using a symmetric key and the symmetric key is... Agent: Workman Nydegger/microsoft

20090208017 - Validation of encryption key: A label corresponding to a cryptographic key is stored at a first computational device. A user provided label is received at a second computational device. The user provided label is sent from the second computational device to the first computational device. The user provided label is compared to the label... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20090208021 - Method and apparatus for managing encryption keys by mobile communication terminal connected with smartcard: A method and an apparatus are provided for managing encryption keys by a mobile communication terminal connected to a smartcard that stores the encryption keys. The mobile communication terminal receives and stores encrypted multimedia data, extracts recording key information corresponding to an encryption key from the received multimedia data, determines... Agent: The Farrell Law Firm, LLP

20090202065 - Scrambler, scramble processing method, and program: A multiplication value decision unit (12) decides a multiplication value which is a positive value or a negative value corresponding to a bit value of each bit contained in a binary bit string constituting a scramble pattern generated in a pattern generation unit (11). A multiplication processing unit (13) multiplies... Agent: Eric Robinson

20090202066 - Scrambler, scramble processing method, and program: A multiplication value decision unit (12) decides a multiplication value which is a positive value or a negative value corresponding to a bit value of each bit contained in a binary bit string constituting a scramble pattern generated in a pattern generation unit (11). A multiplication processing unit (13) multiplies... Agent: Eric Robinson

20090202067 - Cryptographic system configured to perform a mixed radix conversion with a priori defined statistical artifacts: A cryptographic system (CS) is provided. The CS (800) comprises a data stream receiving means (DSRM), a generator (702), a mixed radix converter (MRC) and an encryptor (908). The DSRM (902) is configured to receive a data stream (DS). The generator is configured to selectively generate a random number sequence... Agent: Harris Corporation C/o Darby & Darby PC

20090202068 - Media security through hardware-resident proprietary key generation: A method, system and apparatus of an author website in a commerce environment are disclosed. In one embodiment, a system includes a host processor; a first security circuit to re-encrypt a work of authorship protected by an encryption standard using a proprietary key after an authorization module uses an algorithm... Agent: Raj Abhyanker LLP C/o Intellevate

20090202069 - Method and system for generating a secure key: A method, system on a chip, and computer system for generating more robust keys which utilize data occupying relatively small die areas is disclosed. Embodiments provide a convenient and effective mechanism for generating a key for use in securing data on a portable electronic device, where the key is generated... Agent: Nvidia C/o Murabito, Hao & Barnes LLP

20090202070 - Robust cipher design: In an iterated block cipher, a method for round key encryption and key generation, the method including providing a first function Fi and a second function Fj, providing a round key generation function, the round key generation function being operative to utilize, in any given round, exactly one of the... Agent: Husch Blackwell Sanders, LLP Husch Blackwell Sanders LLP Welsh & Katz

20090202071 - Recording apparatus, reproducing apparatus, and computer program product for recording and reproducing: A recording apparatus stores first secret information uniquely allocated to the recording apparatus, reads media identification information for specifically identifying a recordable medium and encrypted disk key information encrypted by master key information from the recordable medium, and transmits these pieces of information to an authentication server. The recording apparatus... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090202072 - Control message processing method: The method is characterized in that the discrimination parameter is unique and different for each message of a subset of the ordered set of control messages, this subset containing at least three control messages and at the most all the control messages from the set of messages, in such a... Agent: Dla Piper LLP (us) Attn: Patent Group

20090202073 - Random wave envelope derived random numbers and their use in generating transient keys in communication security applications part ii: A random wave envelope is created from a set of bounded random numbers by additively combining a triangle, a square and a sine wave. The random wave envelope is then used to create a sequence of wave random numbers from the wave envelope, which are used to generate random-variant keys... Agent: Tara Chand Singhal

20090202074 - Qkd station with emi signature suppression: Methods and systems for suppressing the electromagnetic interference (EMI) signature generated by a QKD station are disclosed. One of the methods includes generating two or more modulator drive signals corresponding to two or more of the n possible modulator states of the particular QKD protocol. The modulator drive signals are... Agent: OpticusIPLaw, PLLC

20090202075 - Conditional access system employing constrained encryption keys: A method and apparatus is provided for decrypting an encrypted transport stream, comprising. The method includes receiving the encrypted transport stream over a content delivery network. The encrypted transport stream is encrypted using a first control word that serves as an encryption/decryption key. A variable control word is received over... Agent: Motorola, Inc. Law Department

20090202076 - Communications system via data scrambling and associated methods: A communications system that may include a transmitter, a receiver, connected over a communications network. A communication link on the communications network may transfer data between the transmitter and the receiver. The system may also include a logic unit to scramble a plurality of portions of the data at the... Agent: International Business Machines Corporation Richard Lau

20090202077 - Apparatus and method for secure data processing: A method for secure processing of a data stream using a secret key stored in a key storage, with the data stream including content data and context information, with the key storage holding several secret keys, the method including: extracting the context information from the content data stream; generating address... Agent: Duane Morris LLP - Princeton

20090202078 - Device, system, and method of securely executing applications: Device, system, and method of executing secure-processing (SEP) applications. Some demonstrative embodiments include a secure-processing (SEP) hardware module including a processor capable of executing at least one SEP application, wherein the SEP hardware module is configured to perform at least one of encrypting and decrypting data handled by the SEP... Agent: Empk & Shiloh, LLP C/o Landon Ip, Inc.

20090202080 - Method and system for managing encryption key: Conventionally, an encryption key for encrypting data to be backed up in a tape cannot be allocated for each logical data management unit. To solve the problem, provided is a storage system including: a disk storage device; a tape storage device in which a tape storage medium is loaded; and... Agent: Stanley P. Fisher Reed Smith LLP

20090202079 - Method, apparatus and computer program product for providing mobile broadcast service protection: An apparatus for providing mobile broadcast service protection may include a processor. The processor may be configured to receive an indication of device groupings defining at least a first group of devices and a second group of devices in which the first and second groups are defined on the basis... Agent: Alston & Bird LLP

20090202081 - Key delivery system and method: A method for delivering a key is disclosed. The method includes encrypting a first key using a second uniquely derived key to form an encrypted first key, and providing the encrypted first key to a transaction device. The transaction device contains the second uniquely derived key.... Agent: Townsend And Townsend Crew LLP

20090202065 - Scrambler, scramble processing method, and program: A multiplication value decision unit (12) decides a multiplication value which is a positive value or a negative value corresponding to a bit value of each bit contained in a binary bit string constituting a scramble pattern generated in a pattern generation unit (11). A multiplication processing unit (13) multiplies... Agent: Eric Robinson

20090202066 - Scrambler, scramble processing method, and program: A multiplication value decision unit (12) decides a multiplication value which is a positive value or a negative value corresponding to a bit value of each bit contained in a binary bit string constituting a scramble pattern generated in a pattern generation unit (11). A multiplication processing unit (13) multiplies... Agent: Eric Robinson

20090202067 - Cryptographic system configured to perform a mixed radix conversion with a priori defined statistical artifacts: A cryptographic system (CS) is provided. The CS (800) comprises a data stream receiving means (DSRM), a generator (702), a mixed radix converter (MRC) and an encryptor (908). The DSRM (902) is configured to receive a data stream (DS). The generator is configured to selectively generate a random number sequence... Agent: Harris Corporation C/o Darby & Darby PC

20090202068 - Media security through hardware-resident proprietary key generation: A method, system and apparatus of an author website in a commerce environment are disclosed. In one embodiment, a system includes a host processor; a first security circuit to re-encrypt a work of authorship protected by an encryption standard using a proprietary key after an authorization module uses an algorithm... Agent: Raj Abhyanker LLP C/o Intellevate

20090202069 - Method and system for generating a secure key: A method, system on a chip, and computer system for generating more robust keys which utilize data occupying relatively small die areas is disclosed. Embodiments provide a convenient and effective mechanism for generating a key for use in securing data on a portable electronic device, where the key is generated... Agent: Nvidia C/o Murabito, Hao & Barnes LLP

20090202070 - Robust cipher design: In an iterated block cipher, a method for round key encryption and key generation, the method including providing a first function Fi and a second function Fj, providing a round key generation function, the round key generation function being operative to utilize, in any given round, exactly one of the... Agent: Husch Blackwell Sanders, LLP Husch Blackwell Sanders LLP Welsh & Katz

20090202071 - Recording apparatus, reproducing apparatus, and computer program product for recording and reproducing: A recording apparatus stores first secret information uniquely allocated to the recording apparatus, reads media identification information for specifically identifying a recordable medium and encrypted disk key information encrypted by master key information from the recordable medium, and transmits these pieces of information to an authentication server. The recording apparatus... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090202072 - Control message processing method: The method is characterized in that the discrimination parameter is unique and different for each message of a subset of the ordered set of control messages, this subset containing at least three control messages and at the most all the control messages from the set of messages, in such a... Agent: Dla Piper LLP (us) Attn: Patent Group

20090202073 - Random wave envelope derived random numbers and their use in generating transient keys in communication security applications part ii: A random wave envelope is created from a set of bounded random numbers by additively combining a triangle, a square and a sine wave. The random wave envelope is then used to create a sequence of wave random numbers from the wave envelope, which are used to generate random-variant keys... Agent: Tara Chand Singhal

20090202074 - Qkd station with emi signature suppression: Methods and systems for suppressing the electromagnetic interference (EMI) signature generated by a QKD station are disclosed. One of the methods includes generating two or more modulator drive signals corresponding to two or more of the n possible modulator states of the particular QKD protocol. The modulator drive signals are... Agent: OpticusIPLaw, PLLC

20090202075 - Conditional access system employing constrained encryption keys: A method and apparatus is provided for decrypting an encrypted transport stream, comprising. The method includes receiving the encrypted transport stream over a content delivery network. The encrypted transport stream is encrypted using a first control word that serves as an encryption/decryption key. A variable control word is received over... Agent: Motorola, Inc. Law Department

20090202076 - Communications system via data scrambling and associated methods: A communications system that may include a transmitter, a receiver, connected over a communications network. A communication link on the communications network may transfer data between the transmitter and the receiver. The system may also include a logic unit to scramble a plurality of portions of the data at the... Agent: International Business Machines Corporation Richard Lau

20090202077 - Apparatus and method for secure data processing: A method for secure processing of a data stream using a secret key stored in a key storage, with the data stream including content data and context information, with the key storage holding several secret keys, the method including: extracting the context information from the content data stream; generating address... Agent: Duane Morris LLP - Princeton

20090202078 - Device, system, and method of securely executing applications: Device, system, and method of executing secure-processing (SEP) applications. Some demonstrative embodiments include a secure-processing (SEP) hardware module including a processor capable of executing at least one SEP application, wherein the SEP hardware module is configured to perform at least one of encrypting and decrypting data handled by the SEP... Agent: Empk & Shiloh, LLP C/o Landon Ip, Inc.

20090202080 - Method and system for managing encryption key: Conventionally, an encryption key for encrypting data to be backed up in a tape cannot be allocated for each logical data management unit. To solve the problem, provided is a storage system including: a disk storage device; a tape storage device in which a tape storage medium is loaded; and... Agent: Stanley P. Fisher Reed Smith LLP

20090202079 - Method, apparatus and computer program product for providing mobile broadcast service protection: An apparatus for providing mobile broadcast service protection may include a processor. The processor may be configured to receive an indication of device groupings defining at least a first group of devices and a second group of devices in which the first and second groups are defined on the basis... Agent: Alston & Bird LLP

20090202081 - Key delivery system and method: A method for delivering a key is disclosed. The method includes encrypting a first key using a second uniquely derived key to form an encrypted first key, and providing the encrypted first key to a transaction device. The transaction device contains the second uniquely derived key.... Agent: Townsend And Townsend Crew LLP

20090196415 - Hybrid method for distributing keys for the diffusion of encrypted data: The invention relates to a method for broadcasting data in a system using a BES (A1) stateless scheme using a binary tree T with a KEKs No 2 key structure, i.e. such that a key ki,j is associated with each difference of subsets Si,j, and a root key ko, -... Agent: Lowe Hauptman & Berner, LLP

20090196414 - Online data conversion technique: An embodiment of the invention provides an apparatus and method for online data conversion. The apparatus and method are configured to read data that is overlapped by a window in a first position in a volume, convert the data into a converted text, write the converted text into the volume,... Agent: Hewlett Packard Company

20090196416 - Tweakable block encryption apparatus, method, and program: A tweakable block cipher apparatus includes an input unit that receives a pair of a plaintext M and a tweak; an offset calculation unit that calculates a sum of a value (E(K, const)), which is generated by encrypting a constant plaintext (constant const) using a block cipher, and the tweak... Agent: Foley And Lardner LLP Suite 500

20090196417 - Secure disposal of storage data: A data storage device (such as a magnetic disk drive), which has a built-in encryption function using a self generated cipher key. The data storage device uses the cipher key to routinely encrypt the incoming data without instruction and/or control by the host system or other components that are external... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20090196418 - Encryption apparatus with diverse key retention schemes: An encryption apparatus (14) includes a secure processing system (12) in the form of an integrated circuit. The secure processing system (12) includes an on-chip secure memory system (30). The secure memory system (30) includes a non-volatile, read-only, permanent key register (62) in which a permanent cryptographic key (64) is... Agent: Meschkow & Gresham, P.L.C

20090196419 - Quantum cryptography apparatus: A timing and synchronisation apparatus and method for a quantum cryptography system is disclosed. A gating pulse is generated by a clock and synchronised to the receipt of transmitted photons at the detector. The apparatus is arranged to only accept photon detection events occurring during the gating period.... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20090196420 - Cryptographic system incorporating a digitally generated chaotic numerical sequence: A cryptographic system (CS) is provided. The CS (500) is comprised of a data stream receiving device (DSRD), a chaotic sequence generator (CSG) and an encryptor. The DSRD (602) is configured to receive an input data stream. The CSG (300) includes a computing means (3020, . . . , 302N-1)... Agent: Harris Corporation C/o Darby & Darby PC

20090196421 - Method of encryption and decryption, transmitter, and receiver in radio communication system: A transmitter encrypts data blocks using the encryption key and variable number information (CTR) sequentially updated for every encryption of the respective data blocks; selectively attaches one of the variable number information (CTR) used for encrypting the respective data blocks, to the encrypted data block; and transmits the encrypted data... Agent: Myers Wolin, LLC

20090196422 - Method and apparatus for managing hyper frame number for ciphering/deciphering in mobile communication system: A method and an apparatus for managing an HFN for ciphering/deciphering at an RNC of a mobile communication system are provided. In the method, a Timing Adjustment (ToA) value is received from a base station, and a Connection Frame Number (CFN) is corrected. Whether correction of the CFN has been... Agent: JeffersonIPLaw, LLP

20090196424 - Method for security handling in a wireless access system supporting multicast broadcast services: upon request by a Mobile Station MS for distribution of MBS keying data for an MBS Service Flow, checking in the Access Service Network ASN of said system if access to said MBS Service is authorized for said MS, and, if access to said MBS Service is authorized for said... Agent: Harness, Dickey & Pierce, P.L.C

20090196423 - Methods to defend against tampering of audit records: Embodiments of the invention provide systems and methods for detection of tampering with an audit record for a database. According to one embodiment, a method for detection of tampering with an audit record for a database can comprise reading one or more audit records for a time period from an... Agent: Townsend And Townsend And Crew LLP

20090196426 - Method and apparatus for key distribution for secure digital cinema presentations: Key distribution within a digital cinema presentation facility (140) occurs according to a retrieval process (200, 300) that provides for automatic retrieval at a scheduled time. The process further includes redundant mechanisms to transfer the necessary keys, in different ways to enable theater personnel to obtain the required key in... Agent: Thomson Licensing LLC

20090196425 - Method for authenticating electronically stored information: A system for authenticating electronically stored information (ESI) with a first key and a second key. The comparison of the first key and the second key are used to authenticate the second electronically stored information.... Agent: James Lindon, Lindon & Lindon

20090196427 - System and computer program product for protecting audio content: Techniques for protecting information in an audio file are provided. The techniques include obtaining an audio file, detecting information beating one or more segments in a speech signal, wherein the information comprises information sought for protection, encrypting the information sought for protection by scrambling the one or more segments using... Agent: Ryan, Mason & Lewis, LLP