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7634086 |
Cipher device using RC4 algorithm and method thereof
An encryption/decryption device and a method thereof use an RC4 algorithm to reduce a waiting time for encryption/decryption thereby avoiding data process delay. The encryption/decryption device...
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7623663 |
Rolling code security system
A rolling code transmitter is useful in a security system for providing secure encrypted RF transmission comprising an interleaved trinary bit fixed code and rolling code. A receiver demodulates...
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7623723 |
Method for random point and patterned noise reduction in digital images
A technique is provided for filtering noise in digital image data, particularly random point or spike noise. Image data may be rank order filtered and absolute differences between ordered values...
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7613296 |
M6 block cipher system and method for encoding content and authenticating a device
An M 6 block cipher system and method for encoding content and authenticating a device may use an M 6 core. The M 6 block cipher system may include a rotate constant selector selecting one or...
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7613300 |
Content-protected digital link over a single signal line
A packet based high bandwidth copy protection method is described that includes the following operations. Forming a number of data packets at a source device, encrypting selected ones of the data...
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7609837 |
System and method for automatic setup of a network device with secure network transmission of setup parameters
A system and method for use with local area networks (LANs) automatically configures a new device on a LAN by secure encrypted transmission of setup parameters. A remote control (RC) with an...
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7606369 |
Process for establishing a common cryptographic key for N subscribers
A process is described which can be used to generate a cryptographic key for a group of subscribers whose number is subject to change. The process can further provide that even after the group key...
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7600121 |
Message security
To provide a secure, effective but simple message handling, a method is provided for transmitting an electrical message, from a first user having a first terminal to a second user having a second...
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7584357 |
Control device for creating one-time password using pre-input button code, home server for authenticating control device using one-time password, and method for authenticating control device with one-time password
A control device authentication method in a home network system which includes a slave, a home server which controls the slave, and the control device which performs a remote control function to...
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7584361 |
Encoding and detecting apparatus
According to the present invention there is provided an encoding data processing apparatus for generating a marked copy of an item of material by introducing code words into a copy of the material...
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7581110 |
Key distribution for encrypted broadcast data using minimal system bandwidth
This invention provides a bandwidth-efficient mechanism whereby the source or originating node(s) (the invention supports multiple source nodes, each creating single or multiple broadcast...
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7548620 |
Token provisioning
A method for provisioning a device such as a token. The device issues a certificate request to a Certification Authority. The request includes a public cryptographic key uniquely associated with...
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7529938 |
Method, apparatus and system for performing authentication according to challenge-response protocol using scrambled access information
An authentication communication system includes an storage medium having an area for storing digital information and an access device for reading/writing digital information from/into the area. The...
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7526091 |
Method for transmitting and receiving control information for encryption in a mobile communication system supporting multimedia broadcast/multicast service
A method for minimizing overhead occurring caused by control information for encryption performed to protect MBMS data for an MBMS service in a mobile communication system. This method is...
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7522727 |
Method and apparatus for providing authentication in a communication system
A method includes receiving an authentication request from a mobile station ( 401 ) and determining whether to forward the request to an authentication agent. When it is determined to forward the...
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7519178 |
Method, system and apparatus for ensuring a uniform distribution in key generation
A method, system and apparatus are described for ensuring a uniform random distribution of keys generated for cryptography. These generated keys, are depicted utilizing a trusted third party, or...
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7505585 |
Method of generating cryptographic key using elliptic curve and expansion in joint sparse form and using same
A method of generating a cryptographic key between two users. First, the users select an elliptic curve. Next, the users select a point P on the curve. Next, the first user selects integers r a ...
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7502466 |
System and method for secure communication of electronic documents
The present invention is directed to a system and method for secure communication of electronic documents to a document processing device. A document processing request containing electronic...
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7502468 |
Method and system for generating a cryptographically random number stream
A method and system for generating a cryptographically random number stream ( 100 ) is provided. A system includes a module ( 102 ) configured to provide at least two statistically random number...
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7493661 |
Secure transmission system
A method and apparatus for transferring a message securely from a sender to a recipient over a network and includes at each transfer: creating a message; retrieving the public key of the recipient...
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7480383 |
Apparatus and method for scrambling high-rate data
The apparatus and method for scrambling high-rate data is disclosed. The apparatus includes a first storing unit for storing a transport stream (TS) inputted from an external device; a common key...
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7477743 |
Hybrid network encrypt/decrypt scheme
A hybrid method for a service provider to transmit decryption information (e.g., algorithms, parameters, keys) to clients in a secure manner and at low cost for use in decrypting broadcast...
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7472285 |
Apparatus and method for memory encryption with reduced decryption latency
A method and apparatus for memory encryption with reduced decryption latency. In one embodiment, the method includes reading an encrypted data block from memory. During reading of the encrypted...
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7471795 |
Information transmission system
A sending apparatus generates a first initial vector, a second initial vector, and an encryption key in response to a pseudo random number. Original information is encrypted into cipher information...
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7464274 |
Manufacturing trusted devices
The present invention discloses a method and apparatus for manufacturing trusted devices. A licensing authority provides keying information to a multitude of manufactures that insert the keying...
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7426274 |
Method and apparatus for generating pseudo random numbers in a video device having an embedded cipher unit
A video source device includes a cipher unit. The video source device uses the cipher unit to generate cipher bits for ciphering video to be transmitted to protect the video from unauthorized...
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7426275 |
Handling device and method of security data
A handling device of security data of a vehicle includes: an in-vehicle unit having a portable unit authenticating unit, an EEPROM, a ROM, and a controller; a vehicle having the in-vehicle unit, a...
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7421735 |
Proxy method and system for secure wireless administration of managed entities
A method, system and apparatus are described for avoiding the use of a web-server or generic security when providing network administration services remotely to managed entities using wireless...
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7412055 |
Method and system for fair exchange of user information
A method and system for a fair exchange of user information over a network is disclosed. The method comprises the steps of: transmitting over the network the user information encoded in association...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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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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,...
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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...
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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...
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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...
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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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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...
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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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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...
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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...
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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 )...
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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...
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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...
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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...
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