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7623658 Method and system for implementing the A5/3 encryption algorithm for GSM and EDGE compliant handsets  
In a wireless communication system, a method and system for implementing the A5/3 encryption algorithm for GSM and EDGE compliant handsets are provided. Input variables may be initialized in a...
7610486 Conditional access system and method  
The present invention relates to methods of and systems for providing conditional access to electronic content. Electronic content is provided to a user along with authorization information. The...
7606368 Method and apparatus for data encryption  
A method and apparatus for use in encrypting and decrypting digital communications converting an initial block to final block based on freely selectable control information and secret key...
7602918 Method for distributing security keys during hand-off in a wireless communication system  
The present invention provides a method of wireless communication involving at least one first base station associated with a first access serving network and at least one second base station...
7602915 Communication system having plurality of nodes sharing a common cipher key, cipher key dispatching apparatus for use in the system, and anti-theft apparatus utilizing information derived from cipher key utilization  
A communication system has a plurality of nodes that perform encrypted communication via a LAN, each using an identical common cipher key. The common cipher key is replaced at fixed or irregular...
7600134 Theft deterrence using trusted platform module authorization  
A method for theft deterrence of a computer system is disclosed. The computer system includes a trusted platform module (TPM) and storage medium. The method comprises providing a binding key in the...
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...
7596222 Encrypting data for access by multiple users  
A method for protecting data for access by a plurality of users. A server encrypts data using a master key and a symmetric encryption algorithm. For each authorized user, a key encryption key (KEK)...
7580524 Method and apparatus for synchronizing the emitter and the receiver in an autocompensating quantum cryptography system  
In a method and apparatus for synchronizing the receiver and the emitter in an autocompensating quantum cryptography system it is allowed to one of the stations (for example the emitter) to define...
7574600 System and method for combining user and platform authentication in negotiated channel security protocols  
A security protocol for combining user and platform authentication. The security protocol includes a first handshake phase to issue attestation identity credentials, and a second handshake phase to...
7567672 Cryptographic communication system  
In a cryptographic communication system, a prover is connected through a channel to a verifier. Elements a, b, c, d of a finite group are used as a public key and a parameter “x” as a private...
7562223 Multifunction device with secure job release  
A secure release of a job request is managed at a document processing system that has been issued a private key and a public key. In one embodiment, the job request includes a first part specifying...
7555121 Methods and apparatus for implementing a cryptography engine  
Methods and apparatus are provided for implementing a cryptography engine for cryptography processing. A variety of techniques are described. A cryptography engine such as a DES engine running at a...
7551740 Weighted secret sharing and reconstructing method  
A weighted secret sharing and reconstructing method includes encoding the secret using a predetermined code, producing voices so that different weights are assigned to errors in an error vector...
7549061 Unauthorized contents detection system  
An executing device for conducting playback is high during the playback of contents. The executing device is equipped with a highly efficient processor and reduces the processing load involved in...
7548887 Information-signal playback system, information-signal reading apparatus, information-signal processing apparatus, information-signal playback method, information-signal reading method and information-signal processing apparatus  
The present invention relates to an apparatus and a method for protecting the copyright of an information signal recorded on a recording medium such as a DVD (Digital Video Disc) for presenting the...
7546468 Program update method and server  
A system including a secure LSI 1 establishes a communication path to/from a server 3 (UD 1 ), and receives a common key-encrypted program generated by encryption with a common key and...
7542573 Providing apparatus, communication device, method, and program  
A providing apparatus provides information required for secure communication to first and second devices. The providing apparatus includes a receiving unit that receives a first parameter used by...
7532876 Communication system and associated method of performing mutual authentication  
A reception intensity measuring unit measures a reception intensity of a radio wave received by a radio reception unit under control of a connection control unit. When it is judged that the...
RE40708 Dual encryption protocol for scalable secure group communication  
A logical tree structure and method for managing membership in a multicast group provides scalability and security from internal attacks. The structure defines key groups and subgroups, with each...
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...
7516321 Method, system and device for enabling delegation of authority and access control methods based on delegated authority  
A trusted authority delegates authority to a device. This delegation of authority is effected by providing a yet-to-be completed chain of public/private cryptographic key pairs linked in a...
7515715 Information security for aeronautical surveillance systems  
A method and apparatus for encrypting a Mode-S extended squitter exploiting a provided key. The key includes a control key segment, an address key segment, a first message key segment, and a first...
7512972 Synchronizing for digital content access control  
A method and apparatus for digital content access control comprises determining the occurrence of a synchronization event that triggers synchronization of information used by one or more content...
7509492 Distributed scalable cryptographic access control  
Published resources are made available in an encrypted form, using corresponding resource keys, published through resource key files, with the publications effectively restricted to authorized peer...
7506370 Mobile security architecture  
Security and mobility overlay architecture (SAMOA) includes security management and secure transport functions for fixed or mobile security subscriber units (SSUs). SSUs within SAMOA are...
7502472 Encryption system and method for encrypting/decrypting sensitive data  
An encryption system ( 1 ) and a method for encrypting and decrypting sensitive data during a data interchange between at least two electronic appliances communicating with one another. The...
7502463 Methods and apparatus for implementing a cryptography engine  
Methods and apparatus are provided for implementing a cryptography engine for cryptography processing. A variety of techniques are described. A cryptography engine such as a DES engine can be...
7499542 Device and method for encrypting and decrypting a block of data  
The purpose of this invention is to propose a new encryption method which offers a high level of security combined with a high execution speed. This aim is achieved by a method to encrypt or...
7496200 Architecture for manufacturing authenticatable gaming systems  
An architecture is described to manufacture console-based gaming systems in a manner that allows them to be authenticated to a remote entity for online participation. The architecture involves...
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...
7490240 Electronically signing a document  
Facilitating communication using a digital signature includes: receiving user input data (UID); generating a first key as a deterministic function of the UID; clearing the UID; generating a second...
7487352 Architecture for manufacturing authenticatable gaming systems  
An architecture is described to manufacture console-based gaming systems in a manner that allows them to be authenticated to a remote entity for online participation. The architecture involves...
7487352 Architecture for manufacturing authenticatable gaming systems  
An architecture is described to manufacture console-based gaming systems in a manner that allows them to be authenticated to a remote entity for online participation. The architecture involves...
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...
7472268 Privacy and security mechanism for presence systems with tuple spaces  
A system is provided for cycling encryption keys to prevent the guessing of encrypted presence information in a shared information space. The system of the invention prevents malicious publication...
7471791 Method for countermeasure in an electronic component using a secret key algorithm  
A countermeasure method in an electronic component using a secret key algorithm K on an input message M executes an operation O PN (D) on input data D. A random value, of one first random...
7471714 Random number sequence sharing system, random number sequence sharing apparatus, codec system, coding apparatus, decoding apparatus, random number sequence sharing method, coding method, decoding method, and program product  
In a random number sequence sharing apparatus, a reception unit receives a radio signal including a radio wave from a pre-designated radio star at a pre-designated observation time, a sending unit...
7454020 System and method for encrypting data in pictorial data  
An encryption scheme that uses steganography includes an encryption algorithm that encrypts messages by embedding them in a data stream in such a way that an adversary cannot get information about...
7450720 Linear transformation for symmetric-key ciphers  
A method of generating a linear transformation matrix A for use in a symmetric-key cipher includes generating a binary [n,k,d] error-correcting code, where k<n<2k, and d is the minimum...
7450719 Gigabit Ethernet-based passive optical network and data encryption method  
A Gigabit Ethernet-based passive optical network that can reliably transmit data is disclosed. The network includes an OLT for receiving a public key through a transmission medium, encrypting a...
7450260 Printer driver program and printer  
In a printer driver that transmits a print data to a printer connected via a network to make a print request, a document password processing unit prompts a user to input a document password for...
7441116 Secure resource distribution through encrypted pointers  
A secure pointer. The secure pointer can include an encrypted pointer to a resource disposed in a communicatively coupled computing device. The secure pointer also can include a network address of...
7440570 Method and apparatus for remote digital key generation  
A method and apparatus that uses tha dynamics of chaotic system for the remote generation of a digital key, for use in any encryption algorithm. After initialization, the dynamics of a chaotic...
7433473 Data transmission method between a broadcasting center and a multimedia unit  
The aim of this invention is to propose a flexible solution to the risk represented by the interception of data by an unauthorized party during the transmission of said data between a broadcast...
7421741 Securing digital content system and method  
A system and method of encrypting digital content in a digital container and securely locking the encrypted content to a particular user and/or computer or other computing device is provided. The...
7409552 Method for securing communications between a terminal and an additional user equipment  
Method for securing a session over a radio or infrared wireless link ( 101 ) between a terminal ( 11 ) and a mobile equipment ( 10 ), said session being secured with a SIM card ( 100 ) in said...
7403622 Process for managing a symmetric key in a communication network and devices for the implementation of this process  
A symmetric key management process in a communication network comprising a source device furnished with a source of data to be broadcast over the network and at least one receiver device intended...
7403620 Cyphering/decyphering performed by an integrated circuit  
A method of cyphering and/or decyphering, by an integrated circuit, of a digital input code by means of several keys, comprising: dividing the code into several data blocks of same dimensions; and...
7401356 Method and system for e-mail message transmission  
An e-mail firewall applies policies to e-mail messages transmitted between a first site and a plurality of second sites. The e-mail firewall includes a plurality of mail transfer relay modules for...
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