Matches 1 - 50 out of 92 1 2 >
Match Document Document Title
7623657 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...
7613921 Method and apparatus for remotely provisioning software-based security coprocessors  
A virtual security coprocessor is created in a first processing system. The virtual security coprocessor is then transferred to a second processing system, for use by the second processing system....
7603557 Communication device, communication system and authentication method  
A communication device, a communication system and an authentication system for preventing a disguising act by an illegal man-in-the-middle and improving the safety and certainty of authentication...
7599493 Asymmetric key pair having a kiosk mode  
Techniques for providing different levels of access based upon a same authentication factor are provided. A first message is received that is transformed with a first portion of a split private...
7596697 Technique for providing multiple levels of security  
Techniques for authentication are provided. A first authentication request transformed with a private portion of a first type split private key is received. A first user is authenticated for a...
7581244 IMX session control and authentication  
A secured network connection requires three authentication routines. A system access authentication routine requires a client network device to submit user authentication information to a network...
7568113 Reliable storage medium access control method and device  
A method of and device ( 110 ) for granting access to content on a storage medium ( 101 ), comprising obtaining cryptographic data (Y) from a property ( 102 ), such as a wobble, of the storage...
7539310 Encryption key updating for multiple site automated login  
A version number is associated with an encrypted key executable to allow real time updating of keys for a system which facilitates users signing on to multiple websites on different domains using...
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...
7505599 Information processing system and method for managing encrypted data with tag information  
An enabling key block (EKB) used in an encrypted key distributing tree structure is generated by forming a simplified 2-branch or multi-branch type tree with a terminal node or leaf which is...
7502475 Method and system for secure key generation  
Certain aspects of the invention for producing a secure key may comprise a secure key generator that receives a first, second and third input keys and utilizes these keys to generate a first output...
7496199 Method of controlling access to cryptographic resources  
The cryptographic resources are supplied by at least one cryptographic source having a specific access interface. The application is presented with a mutualized interface substantially independent...
7493429 Communication of information via a side-band channel, and use of same to verify positional relationship  
The present invention provides for trusted side-band communications between components in a computer system, so that use of the system bus may be avoided. Two components may be connected by means...
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...
7486793 Invoicing management method of a service transmitted per time unit  
The objective of the present invention is to propose an accounting method of the consumption of transmitted services per time unit to a decoder in a system implementing a content encrypted by...
7478233 Prevention of software tampering  
In a distributed computing architecture, a method and system for authenticating a message as originating from an unaltered or unmodified node is provided. Prior to sending a messages, a black box...
7471796 Apparatus for and method of controlling propagation of decryption keys  
A security system for controlling access to encrypted information, comprising: a memory for storing at least one decryption key for use in decrypting an encrypted item of information, the...
7443984 Information processing system and method for distributing encrypted message data  
A content key, an authentication key, and a program data etc. are transmitted with an enabling key block (EKB) in an encrypted key constitution of a tree structure. The EKB has a constitution in...
7437568 Apparatus and method for establishing trust  
Computer apparatus comprising a receiver for receiving an integrity metric for a computer entity via a trusted device associated with the computer entity, the integrity metric having values for a...
7437549 Datacast distribution system  
According to the present invention there is provided a datacast distribution system which allows for the distribution of movies, music, games, application software, and the like using a new or...
7436957 Audio cassette emulator with cryptographic media distribution control  
A device of the same general physical size and shape as a standard audio cassette tape, but which accepts digital information from any of a variety of sources—including for example: Internet...
7428754 System for secure computing using defense-in-depth architecture  
A secure computing system is provided which utilizes a unique combination of Public Key Infrastructure (PKI), Virtual Private Networking (VPN), and server-based computing on thin client devices....
7392384 Method and system for secure storage, transmission and control of cryptographic keys  
A system and method are described supporting secure implementations of 3DES and other strong cryptographic algorithms. A secure key block having control, key, and MAC fields safely stores or...
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...
7366905 Method and system for user generated keys and certificates  
A method and system to allow user generation of a private-public key pair and an associated user generated certificate to establish the identity of a user based upon signing the user generated...
7356688 System and method for document distribution  
Methods for transferring among key holders in encoding and cryptographic systems the right to decode and decrypt messages in a way that does not explicitly reveal decoding and decrypting keys used...
7336791 Information processing apparatus  
Upon receipt of a service data request from a client, a license server offering a key to decrypt a content transmits a user information request to the client. On receiving the user information...
7324644 Scheme for transferring copyright protected contents data using radio link layer authentication/encryption  
Between a transmitting device and a receiving device, a first authentication and key exchange procedure depending on a radio link layer network is carried out, and then a whole or a part of a...
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...
7283629 Deriving keys used to securely process electronic messages  
A plurality of message processors exchange public and secret information. Based on the exchanged information, each message processor computes a key sequence such that any one of a plurality of keys...
7269729 Relational database management encryption system  
Disclosed is a method of internally encrypting data in a relational database, comprising the steps of providing a security dictionary comprising one or more security catalogs, receiving data from a...
7242772 Encryption apparatus and method for synchronizing multiple encryption keys with a data stream  
A data stream, such as a digital motion picture, is encrypted in units of one or more blocks, each block having an assigned encryption key. A plurality of encryption keys is assigned to the...
7225339 Information recording/playback apparatus and method  
In a tree-structural key distribution system, renewed data of a master key and medium key are sent along with a key renewal block (KRB). KRB is such that each of devices included as leaves of a...
7194620 Method for real-time data authentication  
A digital signature is applied to digital data in real-time. The digital signature serves as a mark of authenticity assuring a recipient that the digital data did in fact originate from an...
7190791 Method of encryption using multi-key process to create a variable-length key  
In symmetric methods of encryption the key should be as long as the plaintext message. Such a key is difficult to generate if the plaintext data to be encrypted is enormous. The present invention...
7184553 Method and system for encryption of optical signals  
A method, a system and a device for encrypting an optical signal to be transmitted via an optical fiber communication link by causing controlled chromatic dispersion of said signal. The...
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...
7162452 Key distribution via a memory device  
A memory element is provided in the recording medium that is readable but not writeable by external devices, and whose content changes each time select material is recorded onto the medium. The...
7127605 Secure sharing of application methods on a microcontroller  
A method and microcontroller for secure object sharing between applications executing on the microcontroller. A server application registers a delegate object with the operating system of the...
7113594 Systems and methods for identity-based encryption and related cryptographic techniques  
A method and system for encrypting a first piece of information M to be sent by a sender [ 100 ] to a receiver [ 110 ] allows both sender and receiver to compute a secret message key using...
7099478 Apparatus for and method of controlling propagation of decryption keys  
An apparatus for and method of controlling propagation of decryption keys is provided. One embodiment of the present invention includes an encryption key propagation control system wherein a...
7096355 Dynamic encoding algorithms and inline message decryption  
In general, data exchanged between users is protected using any of various encoding approaches. An example of encoding is encryption, but any kind of encoding may be used. The data used to encrypt...
7095852 Cryptographic key split binder for use with tagged data elements  
A cryptographic key split binder includes key split generators that generate cryptographic key splits from seed data and a key split randomizer for randomizing cryptographic key splits to produce a...
7088826 Method for providing a crypto key and checkword to an encryption device  
A method for storing a crypto key and an associated checkword of the crypto key stored in a non-volatile memory within a micrcontroller and then providing the crypto key and associated checkword to...
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...
7010685 Method and apparatus for storing scrambled digital programs by filtering product identifier  
In accordance with one embodiment, a method for storing a normal scrambled digital program is provided. The method includes receiving a scrambled program, and receiving a plurality of access...
6976168 System and method for adaptive cryptographically synchronized authentication  
A system and method for implementing adaptive cryptographically synchronized authentication is disclosed. The authentication system includes a controller that dynamically selects one of a plurality...
6968060 Method for verifying the use of public keys generated by an on-board system  
For a set (Lk) of embedded systems, an authorized operator with identifier (OP j ) creates a mother public key (KpM) and a mother private key (KsM). The identifier (OP j ), the range of identifiers...
6940976 Generating user-dependent RSA keys  
Methods, systems and computer program products are provided which generate an RSA cryptographic value by obtaining user specific information about a user and determining a user specific range of...
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...
Matches 1 - 50 out of 92 1 2 >