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7409541 |
Method of transporting packets between an access interface of a subscriber installation and a shared network, and access interface implementing such method
For transporting packets between an access interface of a subscriber installation and a concentrating router of a shared network the access interface carries out control operations on streams of...
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7409543 |
Method and apparatus for using a third party authentication server
A method and apparatus for a third party authentication server is described. The method includes receiving a record ID for a user, and a one-time key generated by the server and encrypted with a...
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7409555 |
Electronic document active content assurance
A system and method are presented for assuring electronic documents containing active content. Aspects of the system and method are directed to storing a copy of input data called by the active...
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7398395 |
Using multiple watermarks to protect content material
Content material is protected with a variety of watermarking processes. Different subsets of the protected content material are submitted to different watermarking processes. At the rendering...
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7395438 |
Digital rights management (DRM) encryption and data-protection for content on device without interactive authentication
A device renders content on a medium by obtaining a table from the medium, obtaining a device key (DK) of the device and an index value of such (DK), indexing into an entry of the table based on...
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7389420 |
Content authentication and recovery using digital watermarks
The disclosure describes methods for using digital watermarking to authenticate digital media signals, such as images, audio and video signals. It also describes techniques for using embedded...
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7383582 |
Systems and methods for performing electronic surveillance
A system performs an electronic surveillance in a packet-switched network. The system includes a first card ( 300 ), a second card ( 400 ), and an electronic surveillance device ( 120 ). The first...
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7382876 |
Hash function constructions from expander graphs
Hash function constructions from expander graphs are described. In one aspect, an expander graph is walked to compute a hash function. The expander graph is walked using respective subsets of an...
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7370354 |
Method of remotely managing a firewall
A method of remotely managing a firewall has been developed. The method includes receiving a control data packet at the firewall from a remote location. Next, the control data packet is analyzed to...
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7370204 |
Watermark data embedding apparatus and extracting apparatus
By a program process, CPU 31 embeds a watermark data into a waveform data stored in wave memory 41 a . The program includes a step for detecting a characterizing part (attack part and loop part)...
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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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7366910 |
System and method for string filtering
A computer-based method for scanning data using string filtering includes compressing a data string using a hashing algorithm to obtain a data-string signature, and then determining that the...
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7360094 |
Verifiable secret shuffles and their application to electronic voting
We present a mathematical construct which provides a cryptographic protocol to (verifiably shuffle) a sequence of (k) modular integers, and discuss its application to secure, universally...
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7346779 |
System and method for authenticating electronic documents
A method for securing an electronic document ( 22 ) comprising attaching a biometric characteristic ( 20 ) and the electronic document ( 22 ) to form a biometric characteristic-document combination...
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7328349 |
Hash-based systems and methods for detecting, preventing, and tracing network worms and viruses
A system ( 126 - 129 ) detects transmission of potentially malicious packets. The system ( 126 - 129 ) receives packets and generates hash values corresponding to each of the packets. The system (...
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7328345 |
Method and system for end to end securing of content for video on demand
A system and method for providing end-to-end security of content over a heterogeneous distribution chain is provided. A content owner provides content to an aggregator that receives the content and...
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7320073 |
Secure method for roaming keys and certificates
A simple scheme is provided for server storage of private keys and certificates in a secure manner, thus solving the difficult problems of roaming certificates. A user can access his private keys...
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7315947 |
Author signatures for legal purposes
Methods and apparatus, including computer program products, implementing and using techniques for establishing trust in an electronic document. An electronic document is received. State dependent...
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7313700 |
Method and system for authenticating a message sender using domain keys
A method and system is directed to providing policies for handling authenticated messages, such as email, and the like, by combining Public Key encryption and the Internet Domain Name System (the...
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7310429 |
Unauthorized-alteration detecting method, unauthorized-alteration detecting program, and recording medium having recorded the program
A false alteration detecting method using an electronic watermark method of fragile type by number theoretic transform. A processing section sets parameters P, N, α of number theoretic transform...
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7310731 |
Contents processing system
A first information processing unit stores identification information into a storage module, stores an encrypted contents signal into a mass storage unit, and supplies the encrypted contents signal...
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7308501 |
Method and apparatus for policy-based packet classification using hashing algorithm
A method, apparatus, and computer implemented instructions for processing a request in a data processing system. The request is received. In response to a first hash value being present within the...
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7308578 |
Method and apparatus for authorizing execution for applications in a data processing system
A method, apparatus, and computer instructions for authorizing execution of an application on the data processing system. A request is received to execute the application, wherein the request...
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7305564 |
System and method to proactively detect software tampering
Software intrusion is proactively detected using a dynamically evolving audit log wherein log entries are generated in the audit log and key values are evolved based upon a one-way function...
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7305086 |
Reducing problems caused by variations in watermark detection results
Detection of watermarks in digital content by a system having a recording device and a playback device may be accomplished in such as a way as to improve the interoperability of the recording and...
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7302575 |
Apparatus for and method of preventing illicit copying of digital content
Further increases in the difficulty of importing to a secure domain digital content including watermarks which impose a degree of difficulty on illicit importing to the secure domain of the digital...
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7294057 |
Secure method for remote game management
A game management center linked to at least one remote game terminal, sends the terminals to which it is linked, a message containing a game identifier and a question. The response from a player...
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7289629 |
Primitives for fast secure hash functions and stream ciphers
Techniques are disclosed to enable efficient implementation of secure hash functions and/or stream ciphers. More specifically, a family of graphs is described that has relatively large girth, large...
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7283630 |
Verification of authenticity of goods by use of random numbers
Method of verifying authenticity of goods uses combination codes that have a random portion and a non-random portion that includes at least a secret portion that is encrypted. The combination codes...
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7269736 |
Distributed cryptographic methods and arrangements
First and second computing devices are selectively operatively coupled together. The first device provides data to the second device. The second device can be a portable computing device. The...
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7269735 |
Instance specific digital watermarks
A method and apparatus for dynamically applying digital watermarks. Requested content is sent to a security module of a user device. A digital watermark is dynamically determined based at least on...
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7266215 |
Image forming apparatus and copy management system
An additional data useful for the management of copies of a document for an image forming apparatus is embedded in a hard copy of the document. The additional data is embedded in an inherent image...
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7260556 |
Content rendering device with usage rights
A digital content rendering apparatus. A request is made to render stored digital content. The request is processed by a repository coupled to a rendering engine to permit rendering only for...
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7260220 |
Adaptive watermarking
A method and apparatus ( 200 ) for embedding a watermark in an information signal bit-stream are described. The method comprises receiving a portion of an information signal bit-stream (MPEG2). A...
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7251733 |
Method, system and devices for transferring accounting information
A method in a system for transferring accounting information, a system for transferring accounting information, a method in a terminal, a terminal, a method in an Extensible Authentication Protocol...
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7243236 |
Systems and methods for using cryptography to protect secure and insecure computing environments
Computation environments are protected from bogus or rogue load modules, executables, and other data elements through use of digital signatures, seals, and certificates issued by a verifying...
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7240208 |
Encrypting digital camera with automatic encryption key deletion
A digital video camera includes an image sensor capable of producing a frame of video data representing an image viewed by the sensor, an image memory for storing video data such as previously...
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7240209 |
Methods of invisibly embedding and hiding data into soft-copy text documents
Method of invisibly embedding and hiding data into a text document by modifying selected invisible attributes of invisible characters on a plurality of inter-word intervals, comprising the steps of...
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7228428 |
Method and apparatus for embedding encrypted images of signatures and other data on checks
Apparatus, methods, and articles of manufacture consistent with the present invention provide a check validation scheme wherein a payor's signature is digitized, encrypted and embedded on the front...
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7222237 |
Secure multimedia data transmission method
A secure method and system of digital data transmission between a sender and a receiver, including a phase of receiver authentication by a symmetrical authentication key sharing algorithm with no...
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7205883 |
Tamper detection and secure power failure recovery circuit
A security system including a token and a host system. The token includes volatile random access memory for storing security data for use during a step of secure authentication, an interface for...
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7203832 |
Network system
This network system includes a first device serving as a shared resource connected to a network, a second device connected to the network and including an object corresponding to the first device,...
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7181044 |
Watermarking and fingerprinting digital content using alternative blocks to embed information
A method of embedding information in digital content representing media streams. The method includes (1) selecting a set of locations within that digital content reprensenting the media stream to...
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7167980 |
Data comparison process
A process for comparing data, such as signatures in a data packet, includes retrieving, from a first hash table, a target value that corresponds to a segment of the data, processing the data in...
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7165051 |
Electronic commerce system and method for detecting fraud
An electronic commerce system having a server and an end user machine interacting through a network during an electronic commerce transaction is disclosed. The server includes a software module...
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7162638 |
Electronic data management system and method
An electronic data management system for accurately determining the authenticity of the electronic data and the specification of the source of unauthenticated electronic data. A drawing output...
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7155737 |
Integrating user specified extensions into an information access system
A method and apparatus is provided for securely executing access control functions that may be customized by or on behalf of administrators of information access systems. Examples of such functions...
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7143290 |
Trusted and secure techniques, systems and methods for item delivery and execution
Documents and other items can be delivered electronically from sender to recipient with a level of trustedness approaching or exceeding that provided by a personal document courier. A trusted...
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7140039 |
Identification of an attacker in an electronic system
A method for identifying a particular component of an electronic system that accesses a resource of the electronic system using electronic security value units is described. First, electronic...
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7136486 |
Print system and printer capable of prevention of unjust copy print
Content data (CD) and printer specifying information (PI) generated by encrypting a printer identifier to specify a printer capable of printing this content data (CD) are included in print job data...
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