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7624271 |
Communications security
A method of authenticating a device's access to a communications node is disclosed. The method of operation includes the communications node generating a first value for use in the derivation of a...
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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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7603697 |
Method and system for securely delivering authentication-related data
A method and system for providing secure communications for transmitting data to and from a wireless device includes components that facilitate sending authentication-related data to a wireless...
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7596225 |
Method for refreshing a pairwise master key
The present invention provides a method for communication involving a supplicant, an authenticator, and an authentication server having an established security association based on a first key. The...
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7596223 |
User control of a secure wireless computer network
A wireless network is established between a station and an access point for the network using a sequence of messages that securely transmit authentication information from the station to the access...
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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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7539866 |
Method of cryptographing wireless data and apparatus using the method
A key descriptor structure exchanged between a wireless LAN terminal and an access point, and a method and apparatus for cryptographing wireless data are provided. The key descriptor structure...
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7536014 |
Apparatus and method for generating scrambling code in UMTS mobile communication system
A scrambling code generating apparatus of a downlink transmitter in a UMTS mobile communication system, which uses one primary scrambling code for separation of base stations and multiple secondary...
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7526092 |
Rekey operation with multiplexing capability
A method of providing a protocol for rekeying between two stations is disclosed. The method can include providing a first set of messages for computing a new key and reserving an auxiliary storage...
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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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7519184 |
Wireless communication system
A small-scale wireless communication system offering advanced security level. An encryption key memory of an access point stores an encryption key list of a plurality of different encryption keys....
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7502932 |
Return routability method for secure communication
Disclosed is an RR (Return Routability) method for secure communication that improves security by eliminating the threat of a man in the middle attack. A mobile node transmits an HoTI (Home Test...
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7477913 |
Determining a target transmit power of a wireless transmission according to security requirements
Different target transmit powers are determined for different wireless transmissions from a wireless device, the different transmissions having different security requirements. For example, the...
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7477746 |
Apparatus for dynamically managing group transient key in wireless local area network system and method thereof
An apparatus for dynamically managing a group transient key (GTK) and a method thereof in order to perform setting of a GTK successfully by an access point (AP). Wherein, the AP checks security...
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7451307 |
Communication apparatus, communication system, communication apparatus control method and implementation program thereof
A communication apparatus, a communication system, a communication apparatus control method and a recording medium for storing an implementation program thereof are disclosed. The communication...
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7450722 |
Subset difference method for multi-cast rekeying
An improved subset-difference method is provided. The improved method uses the value of a current content key to help generate the requisite difference keys. The requisite difference keys are then...
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7444514 |
Group key exchanges with failures
Described are a method for generating a session key on demand in a network, a computer program element, a computer program product stored on a computer usable medium, and a computer device for...
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7421083 |
System for seamlessly updating service keys with automatic recovery
Application servers are programmed such that when an application server changes a compromised service key, the compromised key is saved by the application server until all tickets that may have...
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7400733 |
Key refresh at the MAC layer
A method for encrypted communications between a first transceiver and a second transceiver is provided. The method includes sending from a first transceiver to a second transceiver a request to...
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7392450 |
Method and apparatus of compensating for signal receiving error at receiver in packet-based communication system
A method and an apparatus of compensating for a signal receiving error at a receiver in a packet-based communication system. In the invention, frequency offset estimation and DC offset estimation...
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7380124 |
Security transmission protocol for a mobility IP network
The present invention supports a secure transmissions protocol for information packet transmission between a Mobile Node and a Foreign Agent. The information packets are encrypted and decrypted...
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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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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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7308104 |
Forward multiple scrambling code generating method and apparatus
Disclosed are a forward multiple scrambling code generating method and apparatus in a communication system. Each base station uses primary scrambling codes and an associated one of secondary...
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7302252 |
Authentication systems, wireless communication terminals, and wireless base stations
This invention provides enhanced safety for operation of a wireless communication terminal authentication system. This invention is an authentication system, which comprises a wireless...
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7298850 |
Encrypting keypad module
An encrypting keypad module ( 30 ) comprising a keypad ( 40 ) and an encryption unit ( 42 ) is described. The encryption unit ( 42 ) includes an interpreter ( 56 ) for receiving a file ( 150 )...
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7277548 |
Cryptographic method and computer program product for use in wireless local area networks
An encryption system and method that may encrypt all of the transmitted and received data packets on the data link layer without collisions on the Initialization Vector (IV). In the encryption...
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7266197 |
Method, system, device for proving the authenticity of an entity and/or the integrity and/or the authenticity of a message using specific prime factors
The proof is provided by means of the following parameters: a public module n formed by the product of f prime factors p i , f>2 a public superscript v; m base numbers g i , m>1. The base...
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7248691 |
Hashing using multiple sub-hashes
A hashing structure including multiple sub-hashes is used to determine whether an input value matches one or more of multiple target values. These values can be of any form, such as security...
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7212638 |
Wireless cryptographic fill system and method
A wireless cryptographic fill system includes a fill device and a host portion. The fill device is configured to store one or more cryptographic keys and related data in memory therein. The host...
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7200234 |
Fingerprint, control signal for new encryption key
For transmitting an information string from a source entity to a destination entity the information is encrypted through a time-sequence of encrypting keys that are each valid only in a...
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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...
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7155607 |
Method for authentication between apparatuses using challenge and response system
An object of the present invention is to provide a technology to improve security against spoofing in a method of authentication using a challenge and response system. In the method of...
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7140040 |
Protecting wireless local area networks from intrusion by eavesdropping on the eavesdroppers and dynamically reconfiguring encryption upon detection of intrusion
Apparatus for eavesdropping within an area layer adjacent to and surrounding a LAN area periphery for potential wireless transmissions of an intruder having a lower frequency within a level below...
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7123719 |
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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7092527 |
Method, system and program product for managing a size of a key management block during content distribution
A method, system and program product for managing a size of a key management block (KMB) during content distribution is provided. Specifically, a first KMB corresponding to a first subtree of...
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7085382 |
Communication device, communication device set, authentication method and method of wireless-connecting terminals
A communication device which can be freely inserted into and extracted from a slot of a terminal device has its part exposed from the terminal device when inserted into the slot applied a color...
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7082200 |
Establishing secure peer networking in trust webs on open networks using shared secret device key
A trust web keying process provides secure peer networking of computing devices on an open network. A device is initially keyed at distribution to an end user or installer with a device-specific...
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7079655 |
Encryption algorithm management system
An encryption algorithm management system has a terminal unit and a center unit that have a common cipher-key to a ciphered encryption algorithm. The terminal unit includes a transmitter configured...
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7065643 |
Network compromise recovery methods and apparatus
A secure communications system ( 100 , FIG. 1 ) with a compromised communications node can quickly recover from the compromised condition by sending re-keying messages using a key encryption key...
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7065340 |
Arranging authentication and ciphering in mobile communication system
A method of arranging data protection in a telecommunication system including a first mobile communication network, a second mobile communication network, and a mobile station supporting both of...
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7047405 |
Method and apparatus for providing secure processing and data storage for a wireless communication device
Techniques for providing secure processing and data storage for a wireless communication device. In one specific design, a remote terminal includes a data processing unit, a main processor, and a...
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7035412 |
WLAN error control
A method in a wireless communications network is disclosed whereby errors due to incorrect transmission of scrambler seed values can be very greatly reduced. This is achieved by using a known...
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7024553 |
System and method for updating encryption key for wireless LAN
System for updating an encrypted key, by means of which the WEP of IEEE 802.11 can be applied to a wireless LAN system having plural APs and a large number of STAs. A key management server is...
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7020502 |
Transmitter for remote control system
A transmitter has a dummy load circuit. The dummy load circuit is driven prior to writing of a rolling code into a memory. It consumes the amount of power corresponding to the amount of power...
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6981137 |
System for broadcasting to, and programming, a mobile device in a protocol
The present invention is directed, in one embodiment, to a programming interface which enables device/protocol/network independent transmission of messages to, and programming of, mobile devices....
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6980795 |
Wireless network with a cipher key change procedure
A wireless network employing a radio network controller and a plurality of assigned terminals which are provided for coding certain data to be transmitted over traffic and control channels and...
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6978367 |
Selective data encryption using style sheet processing for decryption by a client proxy
A method, system, and computer program product for selectively encrypting one or more elements of a document using style sheet processing. Disclosed is a policy-driven augmented style sheet...
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6975727 |
Dynamic security credential generation system and method
An apparatus and method dynamically creates security keys for a subscriber, having at least one preexisting security credential set, and allows the configuration for N key pairs or N keys (where...
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