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7401223 Authentication chip for authenticating an untrusted chip  
A trusted authentication chip for use in authenticating an untrusted authentication chip; the trusted authentication chip including a random number generator, a symmetric encryption function and...
7382881 Lawful interception of end-to-end encrypted data traffic  
A method of facilitating the lawful interception of an IP session between two or more terminals 12,13 , wherein session uses encryption to secure traffic. The method includes storing a key...
7370197 Method and system for authenticating messages  
A method and system for authenticating a message is described, in which the message contains a network address, at least a portion of which is a digital fingerprint. Embedded in the message is...
7366917 System and method for accessing discrete data  
A method for accessing discrete data includes transmitting a write command to a memory, determining whether each data following a header of the file needs to be encrypted according to a data format...
7360075 Method and apparatus for providing secure streaming data transmission facilities using unreliable protocols  
The invention provides a method and apparatus for transmitting data securely using an unreliable communication protocol, such as User Datagram Protocol. In one variation, the invention retains...
7359515 Method and apparatus for symmetric-key decryption  
A symmetric-key cryptographic technique capable of realizing both high-speed cryptographic processing having a high degree of parallelism, and alteration detection. The invention includes dividing...
7356146 Method for relocating SRNS in a mobile communication system  
A system and method for performing SRNS relocation in a communications system transmits radio resource information including a ciphering parameter from a source RNC to a target RNC, modifies the...
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...
7337470 Method for minimizing denial of service attacks on network servers  
A method for providing communications network security can include receiving a round-trip network latency for a client specifying an open port duration. A port can be opened to receive a request...
7337316 Packet authentication  
A data packet is conveyed between servers connected to a packet network. A first server securely distributes a list of distinct numbers to one or more authorized receiving servers. Subsequently,...
7334131 Protected storage of a datum in an integrated circuit  
A method for protecting at least one first datum to be stored in an integrated circuit, including, upon storage of the first datum, performing a combination with at least one second physical datum...
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...
7333613 Cyphering of the content of a memory external to a processor  
A method of cyphering, by an integrated processor, of a set of data to be stored in a memory, including performing, in a continuous operation following a data flow, the steps of dividing the data...
7325134 Localized network authentication and security using tamper-resistant keys  
The invention provides a secure Wi-Fi communications method and system. In an embodiment of the invention, unique physical keys, or tokens, are installed at an access point and each client device...
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...
7308575 Data scrambling system for a shared transmission media  
Methods of providing added security for communications between a server and a particular client modem on a shared communication media. The methods provide for passing communications containing...
7302709 Key-based secure storage  
A one-way hash function is applied to a seed supplied by an application to produce a hashed seed that is used to generate the application storage key. A one-way hash function is applied to a seed...
7298840 Method and system for data integrity protection  
A method of authenticating a message ( 111 ) received via a transmission channel ( 108 ) using a Message Authentication Code (MAC). The message comprises a message body ( 114 ) and a tag ( 116 )...
7289630 Counter initialization, particularly for radio frames  
A method for protecting traffic in a radio access network connected to at least two core networks. The method includes maintaining a core-network-specific authentication protocol and a...
7283632 Unauthorized access embedded software protection system  
An operational system ( 10 ) includes a seed-bearing device ( 12 ) that has a seed ( 22 ). A key-determinative device ( 14 ) determines a key in response to the seed ( 22 ). A code-determinative...
7277543 Cryptographic combiner using two sequential non-associative operations  
A stream cipher cryptosystem includes a keystream generator receiving a key and providing a keystream. A cryptographic combiner combines a first binary data sequence and the keystream with two...
7274792 Methods and apparatus for initialization vector processing  
Methods and apparatus are provided for using explicit initialization vectors in both encryption and decryption processing. In one example, a sender generates an initialization vector, identifies...
7269742 Microprocessor configuration with encryption  
A microcontroller for security applications includes an encryption unit between a bus and a functional unit. The encryption unit includes a gate and a key register. A memory is provided with a...
7251729 Authentication method for establishing connection between devices  
An authentication method for establishing a connection between devices that want to communicate data in a communication environment using communication specification such as Bluetooth is provided....
7249256 Encryption protocol  
The present invention relates to a method, a system and a computer-readable medium storing computer-executable components in connection with transfer of information data to a recipient. The...
7237112 Information processing system  
A system for preventing recorded data from being illicitly read out and analyzed. An Internet connection interface 11 transmits a program executed by an adapter 7 to an authentication station,...
7231526 System and method for validating a network session  
A system and method for preventing interception and decryption of information by an unauthorized party when that information is transmitted over a network is provided. A token is used to encrypt...
7231044 Method and apparatus for real-time digital certification of electronic files and transactions using entropy factors  
An invention for digital authentication is provided. A first timing signal is received from a remote source using a receiver. Next, a delay number is stored. The delay number is based on a first...
7221757 Method and system for accelerated data encryption  
An encrypted private session key for a private-key encryption method is quickly exchanged between a first device and a second device by computing encryption acceleration data using a public key for...
7209561 System and method for generating encryption seed values  
A method for generating a seed value for use in symmetric encryption includes creating and storing a first data set and generating a hashed value based on the first data set. A replacement position...
7209560 Data communications  
In a data communications system a remote data source outputs data as a series of application data units (ADUs). Each ADU is individually encrypted with a different key. The keys are transmitted...
7206411 Rapid decryption of data by key synchronization and indexing  
A satellite broadcast conditional access system with key synchronization uses indexing of an authorization stream to quickly restart the decrypting process after short carrier fades and after...
7197642 Consumable authentication protocol and system  
This invention concerns a consumable authentication protocol for validating the existence of an untrusted authentication chip, as well as ensuring that the authentication chip lasts only as long as...
7197144 Method and apparatus to authenticate a user's system to prevent unauthorized use of software products distributed to users  
A system for providing protection against pirating of software product or products or any other digital information being sent over the Internet, or by physical means, to a computer system. The...
7194092 Key-based secure storage  
Secure storage for downloaded content on a subscriber computer is keyed to a trusted digital rights management operating system, a trusted application, a trusted user or a combination thereof. A...
7191344 Method and system for controlling access to data stored on a data storage device  
A system and method of data encryption and decryption for controlling access to a data storage device such as a hard disk drive or optical drive is provided. The invented method utilizes data...
7191340 Generation of a secret quantity based on an identifier of an integrated circuit  
A method and a circuit for generating a secret quantity based on an identifier of an integrated circuit, in which a first digital word is generated from a physical parameter network, and this first...
7188361 Method of transmitting signals  
A method and/or system for transmitting sequences of signals/data from a transmitter to a receiver and for authenticating the sequences of signals/data may consist of a precalculation phase and of...
7178168 Shift device and method for shifting  
A shift device for shifting a first place of a data word, which consists of a plurality of places, to a second place so as to obtain a shifted data word, wherein the first place is encrypted using...
7177426 Electronic file protection using location  
An invention for electronic file protection using location and other entropy factors is provided. Environment information regarding a computer is obtained, wherein the environment information...
7149308 Cryptographic communications using in situ generated cryptographic keys for conditional access  
A system and method for cryptographic communication among multiple users and a central service provider using in situ generated cryptographic keys. Each user communicates with the central service...
7133526 System and method for providing WLAN security through synchronized update and rotation of WEP keys  
A system and method are disclosed that overcome deficiencies of prior art IEEE 802.11 WEP key management schemes. Preferred embodiments of the present system and method update WEP keys and rotate...
7131006 Cryptographic techniques for a communications network  
Techniques are described for enabling authentication and/or key agreement between communications network stations and service networks. The techniques described include the negotiation and use of a...
7110540 Multi-pass hierarchical pattern matching  
A hash table randomly populated with byte patterns is used in finding the byte patterns in a sequence of bytes. A hash function is applied to information associated with a substring of the sequence...
7099474 Key and lock device  
A key and lock device comprises a key having a first electronic circuit and a lock having a second electronic circuit. The key and the lock store secret information, some of which is unique for...
7096201 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...
7080255 Secret key generation method, encryption method, and cryptographic communications method and system  
A cryptographic communications method is provided which is based on ID-NIKS and is resilient to collusive attack. Centers ( 1 ) established in a plurality generate secret keys peculiar to entities...
7065645 System, method, and apparatus for visual authentication  
A visual tag having an imprinted image, a processor for calculating a response string corresponding to the content of the imprinted image and a challenge string, and a changeable screen to display...
7065214 Information processing apparatus, information processing method, information processing system and recording medium  
An information processing apparatus and an information processing method capable of preventing information from being copied illegally. where a hash function and a service key are stored in advance...
7055029 Cryptographic system enabling ownership of a secure process  
Ownership of a secure process is enabled with a cryptographic system. Methods initializing and operating the cryptographic system transfer control from the loading program to the loaded program...
Matches 1 - 50 out of 269 1 2 3 4 5 6 >