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7372963 |
Device for compression and encryption, and device for decompression and decryption
To reduce processing load or processing time required for compression and encryption of data. Data to be compressed, such as image data, is divided into specified block sizes by am image divider (...
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7372964 |
Method and apparatus for recording information including secret information and method and apparatus for reproduction thereof
An information recording method for recording content information in a recording medium having at least re-readable area, comprising converting, based on a first conversion rule φ 1 , first...
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7372961 |
Method of public key generation
A potential bias in the generation or a private key is avoided by selecting the key and comparing it against the system parameters. If a predetermined condition is attained it is accepted. If not...
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7370202 |
Security device for cryptographic communications
Cryptographic systems and methods are provided in which authentication operations, digital signature operations, and encryption operations may be performed. Authentication operations may be...
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7369662 |
Maintaining end-to-end synchronization on a telecommunications connection
A method and an arrangement maintain end-to-end synchronization on a telecommunications connection transmitting data in frames substantially in real time and using synchronized end-to-end...
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7366915 |
Digital license with referral information
A digital license corresponds to encrypted digital content and includes a content key for decrypting same. The content key is encrypted and is decryptable by a decryption key available only to the...
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7366304 |
Cruable U-NII wireless radio with secure, integral antenna connection via SM BIOS in U-NII wireless ready device
A method that utilizes software and hardware mechanisms to meet the FCC requirement for a U-NII antenna to be an integral part of the device in which it operates, while providing wireless ready...
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7366306 |
Programmable logic device that supports secure and non-secure modes of decryption-key access
Described are programmable logic devices that decrypt proprietary configuration data using on-chip decryption keys. The keys are stored in a key memory that can be operated in a secure mode or a...
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7366305 |
Platform and method for establishing trust without revealing identity
One aspect of an embodiment of the invention provides a method and platform to prove to a challenger that a responder device possesses cryptographic information from a certifying manufacturer. This...
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7366905 |
Method and system for user generated keys and certificates
A method and system to allow user generation of a private-public key pair and an associated user generated certificate to establish the identity of a user based upon signing the user generated...
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7366899 |
Architecture and method of multilayered DRM protection for multimedia service
An architecture of multilayered DRM protection structure for multimedia service and the method of forming the same are provided. The architecture comprises a multilayered DRM encryption structure...
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7362868 |
Hidden link dynamic key manager for use in computer systems with database structure for storage of encrypted data and method for storage and retrieval of encrypted data
A computer system ( 20 ) having a security domain ( 22 ), at least one client business domain ( 26 ), and a plurality of client terminals ( 34 ) utilizes a hidden link dynamic key manager ( 24, 84...
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7362870 |
Method and apparatus for recording/playing back information
A data processing apparatus extracts a root key by decrypting an enabling key block. The data processing apparatus then produces a content key on the basis of a random number and encrypts the...
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7362869 |
Method of distributing a public key
A method of distributing the public key of an asymmetric key pair with a private key and the public key from a mobile station to a key managing computer, the method include the steps of:...
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7359514 |
Narrow-band single-photon source and QKD system using same
A narrow-band single-photon source ( 10 ) is disclosed, along with a QKD system ( 200 ) using same. The single-photon source is based on spontaneous parametric downconversion that generates signal...
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7356688 |
System and method for document distribution
Methods for transferring among key holders in encoding and cryptographic systems the right to decode and decrypt messages in a way that does not explicitly reveal decoding and decrypting keys used...
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7356708 |
Decryption semiconductor circuit
A semiconductor integrated circuit having a plurality of selectable pathways inter-connected to data sources and data destinations; a cryptographic circuit connected to the selectable pathways to...
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7356147 |
Method, system and program product for attaching a title key to encrypted content for synchronized transmission to a recipient
A method and system for attaching a title key to encrypted content for synchronized transmission to, or storage by, a recipient is provided. Specifically, under the present invention, an elementary...
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7353209 |
Releasing decrypted digital content to an authenticated path
Digital content is released to a rendering application for forwarding by such rendering application to an ultimate destination by way of a path therebetween. The path is defined by at least one...
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7353382 |
Security framework and protocol for universal pervasive transactions
A computer system, a method of a computer system and a computer-readable medium securely transmit and verify a multiparty agreement. The method, the computer system, and the computer readable...
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7349545 |
Key agreement method in secure communication system using multiple access method
A key agreement method for secure communication in a multiple access system is provided. A key agreement method for secure communication in a multiple access system, the key agreement method...
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7349544 |
Wireless perimeter security device and network using same
A Radio Frequency based security system for providing security for wireless Local Area Networks (WLAN) that allows the creation and maintenance of arbitrarily shaped secure wireless access areas...
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7350069 |
System and method which employs a multi user secure scheme utilizing shared keys
We propose a multi user information theoretically secure scheme. Our scheme allows any two parties in a multi user system to exchange messages securely using encryption, and to sign messages. Our...
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7349537 |
Method for data encryption in an ethernet passive optical network
One embodiment of the present invention provides a system that decrypts downstream data in an Ethernet passive optical network (EPON). During operation, the system receives a data frame which is...
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7349553 |
Watermarks for secure distribution of digital data
A visible first watermark and invisible second and third watermarks are embedded in digital media content, in order to protect the media content from piracy. The visible first watermark protects...
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7346774 |
Encrypted key cache
A file that has been encrypted using a symmetric key and that has a corresponding access control entry with the symmetric key encrypted using the public key of a public/private key pair can be...
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7346583 |
Remote authorization for unlocking electronic data system and method
Controlling unauthorized access to software distributed to a user by a vendor. A verification key is generated by a product key generator and either embedded in the software prior to distribution...
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7346169 |
Information processing device and method
An information processing device, information processing method and a recording medium are provided. Storage included in the information processing device is operable to store a node key and a leaf...
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7346581 |
Copyright management apparatus, copyrighted-work distribution apparatus, and copyrighted-work distribution and receiving system
A TV music broadcasting program is distributed from a distribution apparatus through a ground station and a satellite, and a musical-piece program is also distributed through a plurality of audio...
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7340060 |
System and method for behavioural modelling
The present invention is a computer system that analyses the factual and behavioural data of a group of subjects, extracts the common behavioural patterns from the collection, and is capable of...
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7340061 |
Information processing apparatus, information processing method and providing medium
In an information processing apparatus, a key management unit forms a judgment as to whether an authentication key owned by an application program is valid or invalid. A content protection unit is...
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7340053 |
Cipher strength estimating device
This invention intends to reduce the amount of calculation required by a cipher strength estimating device for estimating a ciphertext in collectively finding session keys for plural rounds of...
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7340055 |
Memory card and data distribution system using it
A memory card ( 110 ) conducts an authentication process with a server based on data stored in an authentication data hold unit ( 1400 ). The memory card ( 110 ) extracts a first session key (Ks 1...
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7336790 |
Decoupling access control from key management in a network
Methods and systems consistent with the present invention provide a Supernet, a private network constructed out of components from a public-network infrastructure. Supernet nodes can be located on...
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7336791 |
Information processing apparatus
Upon receipt of a service data request from a client, a license server offering a key to decrypt a content transmits a user information request to the client. On receiving the user information...
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7333615 |
Encryption between multiple devices
A first device receives first information and second information, encrypts the first information with a first set of encryption keys, and encrypts a combination of the second information and the...
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7334125 |
Facilitating secure communications among multicast nodes in a telecommunications network
An approach for facilitating secure communications among multicast nodes in a telecommunications network is disclosed. A source node sends an encryption key and an identifier to an authoritative...
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7333616 |
Approach for managing access to messages using encryption key management policies
Controlling access to disseminated messages includes implementing one or more key management policies that specify how various encryption keys are maintained and in particular, when encryption keys...
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7334127 |
Key agreement and transport protocol
A key establishment protocol includes the generation of a value of cryptographic function, typically a hash, of a session key and public information. This value is transferred between...
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7330653 |
Quantum dense coding system
A Quantum Dense Coding System. The system includes a source, a transmitter and a receiver. The source is capable of down-converting a pump photon into a signal photon and an idler photon and...
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7327216 |
Secret key programming technique for transponders using encryption
A secret key is programmed into a key transponder from a base station wherein the key transponder stores a fixed ID, a first default key segment stored in a first memory page, and a second default...
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7327846 |
Secure cryptographic key exchange and verifiable digital signature
One aspect of the present invention establishes a session key by a receiving unit R transmitting a plurality of quantities for storage in a public repository. A sending unit S:
1. retrieves...
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7328348 |
Method and system for securely timestamping digital data
A method and system for securely timestamping digital data is disclosed. A secure encryption key is provided within a timestamping module. The timestamping module comprises a processor for...
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7328344 |
Authority-neutral certification for multiple-authority PKI environments
A method for facilitating electronic certification, and systems for use therewith, are presented in the context of public key encryption infrastructures. Some aspects of the invention provide...
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7325142 |
IP network and admission control method used therefor
The access network manager terminal 5 makes a communication quality agreement with the core network manager terminal 3 , the core network manager terminal 3 conducts resource assignment of the...
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7324648 |
Method and apparatus for secure key delivery for decrypting bulk digital content files at an unsecure site
Rather than downloading each content document on demand from the publisher location to the user site, at the publisher location, each content document is encrypted and then multiple encrypted...
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7321660 |
Method and apparatus for encrypting/decrypting data using timed-release keys
A computer system comprises a first computer entity arranged to encrypt data using an encryption key comprising a time value, and a second computer entity arranged to generate, at intervals, a...
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7319681 |
Method and apparatus for securing media access control (MAC) addresses
An apparatus and method for securing media access control (MAC) addresses in a wireless local area network (LAN) environment are provided. In the method of securing MAC addresses, a...
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7319751 |
Data encryption
A method of encrypting a data unit, the method comprising the steps of dividing the data unit into a series of data blocks, and for each data block, applying a block cipher function to a data block...
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7319758 |
Electronic device with encryption/decryption cells
In an electronic component including a two-way bus through which data elements travel between peripherals and a central processing unit at the rate of a clock signal, the central processing unit...
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