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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...
7370111 System, protocol and related methods for providing secure manageability  
A system, protocol and related methods for providing secure manageability are generally described. In this regard, a communication protocol is introduced comprising an authentication protocol,...
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...
7369661 Method and apparatus for detection of loss of cipher synchronization  
Detecting loss of stream cipher synchronization between a transmitter and a receiver in a video processing system may be achieved by receiving, by the receiver, an encrypted video frame from the...
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...
7362864 Framing of transmit encoded data and linear feedback shifting  
Framing transmit encoded output data begins by determining a scrambling remainder between scrambling of an input code word in accordance with a 1 st scrambling protocol and the scrambling of the...
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...
7317799 Cryptographic key distribution using key folding  
Methods, computer-readable media, and apparati for securely distributing a cryptographic key (C) from a first party(s) to a second party(s). A method embodiment of the present invention comprises...
7313236 Methods and apparatus for secure and adaptive delivery of multimedia content  
Techniques for securely and adaptively delivering multimedia content. It is assumed that a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each...
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 )...
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...
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....
7237110 Authentication system, authentication apparatus, authentication target apparatus, authentication method, method of being authenticated, program and information recording medium  
An observation unit of an authentication apparatus and an observation unit of an authentication target apparatus observe a radio wave from a common radio star at a common observation time. A...
7225331 System and method for securing data on private networks  
A system and method for protecting data transmitted across a private network is disclosed. A secure channel is established so that the client computer can securely transmit a password to the server...
7215772 Method and apparatus for remote digital key generation  
A method and apparatus that uses the dynamics of chaotic systems for the remote generation of a digital key, for use in any encryption algorithm. After initialization, the dynamics of a chaotic...
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...
7181431 Interactive information services system and associated method for facilitating purchasing transactions  
A method and system are provided to permit a network operator to capture transaction data relating to transactions between a subscriber and a service provider that are conducted via a...
7178030 Electronically signing a document  
A method of electronically signing a document includes initializing a user, including generating an asymmetric key pair including a private signing key and a public signing key, and storing the...
7158640 Method and apparatus for re-synchronization of a stream cipher during handoff  
A method and apparatus for re-synchronizing a stream cipher during soft handoff. Transmitted quasi-secret keying information is used with a secret key to reinitialize a stream cipher generator...
7151946 Controller for reducing latency in a group communication network  
A method and apparatus for reducing perceived latency in a group communication network provides for receiving a request from a user of a communication device wishing to initiate a group call,...
7151832 Dynamic encryption and decryption of a stream of data  
Dynamic varying of encrypting of a stream of data at an encryption unit based on data content is disclosed. The dynamic varying of the encrypting, which can be responsive to passage of a predefined...
7133525 Communication security apparatus and method of using same  
Encryption and decryption sites are initially assigned identical one time Vernam like pads, (OTP), and each site is provided with identical compendiums of byte modifying instructions identified by...
7133522 Method and apparatus for encryption of data  
A method for encryption and decryption of data items is provided by defining a cipher key based on variables in a Chaotic Equation. The method includes selecting a Chaotic Equation ( 110 ) from a...
7124434 Information transmission system, and information sending apparatus and information receiving apparatus used therein  
A receiver sends a first random number to a transmitter. The transmitter generates a sync signal in response to the first random number sent from the receiver. The transmitter embeds the sync...
7120696 Cryptographic communications using pseudo-randomly generated cryptography keys  
An apparatus and method for generating pseudo-random cryptographic keys in a cryptographic communications system, whereby, given a common set of initializing configuration data, the pseudo-random...
7110546 Synchronization of session keys  
In a communication system for a secure transfer of information from a source device to a sink device in a communication session in the form of a plurality of packets from the source device to the...
7069031 Communication device for providing security in a group communication network  
A method and apparatus for providing security in a group communication network provides for receiving an encryption key, encrypting media for transmission to a controller using the received...
7043022 Packet order determining method and apparatus  
A transmitter adds packet transmission order information to transmitted packets using a forward error device ( 416 ) and a masking device ( 420 ). The masking device ( 420 ) receives ordering masks...
7039185 Method and system for securing a printhead in a closed system metering device  
A closed system meter that secures the link between the accounting device and printer utilizing a Linear Feedback Shift Register (LFSR) based stream encryption is provided. The accounting device...
7035411 Encryption method and apparatus encrypting and adding signature information to qubits  
Arbitrary quantum information is input. The information of a quantum two-state system is acquired as a qubit by performing a computation in consideration of a physical system. The acquired qubit is...
7024392 Method for controlling use of database content  
Method for providing database content usage. The database content can be a digital work having one or more rights associated therewith. The method can be effected within a system having at least...
7006633 Global encryption system  
A system and method for encryption, transmission and decryption of data based on a publicly or other wide area broadcast random number sequence. Encryption is by a selected subsequence from the...
7000106 Methods and apparatus for kernel mode encryption of computer telephony  
Disclosed is a computer-readable medium containing program instructions for configuring a first computer so that a first telephony client on the first computer may securely communicate with a...
6996724 Secret key generating method, common key generating method, encryption method, cryptographic communication method and cryptographic communication system  
At the time when generating a secret key of each entity by using each divided identification information (ID division vector) obtained by dividing identification information (ID vector) of each...
6990204 Interface security system and method  
In an interface security system between a plurality of devices mutually connected and transmitting/receiving a signal, the respective devices include respective selectors selecting a connection...
6980656 Chaotic communication system and method using modulation of nonreactive circuit elements  
A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. One improvement to first-generation systems is the ability to modulate a nonreactive element in the...
6959086 Cryptographic key management scheme  
A key management scheme for managing encryption keys in a cryptographic co-processor includes the first step of selecting a key from one of a symmetrical key type and an asymmetrical key type....
6931132 Secure wireless local or metropolitan area network and related methods  
A secure wireless local or metropolitan area network and data communications device therefor are provided, where the device transmits plain text in an encrypted message including cipher text and an...
6909785 Method and apparatus for efficient irregular synchronization of a stream cipher  
A method and apparatus for efficiently synchronizing a stream cipher. State information is transmitted that will allow the intended recipient of the encrypted data stream to set a stream cipher...
6891952 Dynamic key generation and confidential synchronization of encryption components  
This invention report describes the architecture of a system, which undertakes in a new way the dynamic generation of symmetrical keys and the confidential synchronization of encryption components...
6882860 Method for issuing a incoming call alert according to service options in a composite cellular terminal  
A composite cellular terminal providing various service options issues different call termination alert tones and different call termination display messages according to types of terminated calls....
6853730 Transmitting data words  
There is provided a method of encoding a data word. The method includes (a) scrambling a data word to generate a scrambled data word, and (b) encoding the scrambled data word so that a first...
6829357 Communication system having a transmitter and a receiver that engage in reduced size encrypted data communication  
A communication system ( 10 ) has a portion ( 28 ) of a transmitter controller ( 14 ) that provides a message package. An encryption portion ( 36 ) of the controller ( 14 ) encrypts a first...
6826689 Method and system for emulating a secret code between two hardware modules  
A method and system for emulating a secret code between a first hardware module to a second hardware module. First, the secret code that is initially stored in the first hardware module is...
6816968 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...
6748083 Method and apparatus for free-space quantum key distribution in daylight  
A quantum cryptography apparatus securely generates a key to be used for secure transmission between a sender and a receiver connected by an atmospheric transmission link. A first laser outputs a...
6694024 Transmitting data words  
Codeword synchronization and scrambler synchronization in a block-coded serial communications link are accomplished by (i) substituting a specific comma control codeword for a selected codeword...
6661896 Computer network security system and method  
A method and system for maintaining computer network security allows for changeable encryption keys used by each individual work station to be looked up by a server. The server will have numerous...
6603857 Method and apparatus for controlling release of time sensitive information  
A method and apparatus for controlling release of time-sensitive information is accomplished by a server that establishes access information for a specific future time which only becomes active...
6590981 System and method for secure cryptographic communications  
An apparatus and method for secure cryptographic communications between a sender and a receiver or multiple receivers that includes first and second timing elements, and first and second key...
Matches 1 - 50 out of 170 1 2 3 4 >