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Cryptography > Key Management > Key Distribution > Key Distribution Center > Using Master Key (e.g., Key-encrypting-key)

Using Master Key (e.g., Key-encrypting-key)

Using Master Key (e.g., Key-encrypting-key) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

09/27/07 - 20070223705 - Storage medium processing method, storage medium processing apparatus, and program
A SD card SDq may store plural kinds of service user keys Kus which are different per type of services. The service user key Kus is encrypted by a medium unique key Kmu and is stored in a protection area 3. The protection area 3 stores a master user key ...

09/27/07 - 20070223704 - Method and apparatus for authenticated, recoverable key distribution with no database secrets
A method and apparatus for authenticated recoverable key distribution are described. In one embodiment, an application key is provided to an integrated chip platform. In one embodiment, the integrated chip platform encrypts the application key with a Key Encryption Key, which is stored within the persistent memory on the platform, ...

02/08/07 - 20070030974 - Information sending system, information sending device, information receiving device, information distribution system, information receiving system, information sending method, information receiving method, information distribution method, apparatus, send
Content data encrypted with a content key, the content key encrypted with an individual key specific to an information sending device, and the individual key encrypted with a distribution key that is updated in a predetermined cycle, and supplied are sent to an information receiving device, and the information receiving ...

01/04/07 - 20070003064 - Apparatus and method for group session key and establishment using a certified migration key
A method and apparatus for group session key and establishment using a certified migration key are described. In one embodiment, the method includes exporting of a protected certified migration key (CMK) to a target platform. In one embodiment, exporting of the protected CMK requires that the target platform is authorized ...

12/07/06 - 20060274899 - System and method for secure messaging with network address translation firewall traversal
A system for securing communications between a client and an application server comprises a session key management server and the application server. The system enables network address translation firewall traversal. The session key management server comprises a key management application, a session key database, and a notification services application. The ...

11/23/06 - 20060262933 - Mixnet system
Each participant apparatus (103) encrypts a plaintext by using a secret key of secret key cryptography, encrypts the encryption key by a public key, and sends the plaintext and public key to a substitution/decryption apparatus (112). With this processing, the limitation on the length of a ciphertext to be processed ...

10/12/06 - 20060227975 - Information processor, information processing method, and computer program
An information processor includes a data processing section that executes a processing of storing subsequently generated data, which is subsequently generated or acquired using information read from an information recording medium, onto a storage unit. The data processing section is configured to execute a processing of storing onto the storage ...

04/27/06 - 20060088167 - Method and system for backup and restore of a context encryption key for a trusted device within a secured processing system
A method and system for backup and restore of a context encryption key (CEK) for a trusted device within a secured processing system maintains security of virtualized trusted device contexts, providing for replacement of a trusted device in the field. The CEK is encrypted along with a system identifier by ...

03/23/06 - 20060062393 - Determining a session encryption key during a broadcast/multicast service session using secure real-time transport protocol
Techniques are provided for determining an updated session encryption key. According to one embodiment, a packet index can be computed using a sequence number received in a session data packet during a SRTP session and a predetermined value. The predetermined value can be, for example, a non-zero value from a ...

01/05/06 - 20060002564 - Information processing system, information processing apparatus, information processing method, recording medium and program
A CD-R where a key generating program or the like is stored, and a USB memory where a public key is stored are delivered to a supplier from a receiver. A common key is generated by the supplier. Delivery data which is to be encrypted using the generated common key ...

10/27/05 - 20050238175 - Management of the retention and/or discarding of stored data
Embodiments of methods, devices and/or systems for a method of managing the retention and/or discarding of stored data are described. ...



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