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Class Information
Number: 380/277
Name: Cryptography > Key management
Description: Subject matter providing supervision or control of a signal necessary for encryption or decryption.










Sub-classes under this class:

Class Number Class Name Patents
380/44 Having particular key generator 1,724
380/278 Key distribution 1,332
380/286 Key escrow or recovery 461


Patents under this class:
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Patent Number Title Of Patent Date Issued
8352731 Secure decentralized storage system Jan. 8, 2013
8352373 Data copyright management system Jan. 8, 2013
8351609 Method for managing keys and/or rights objects Jan. 8, 2013
8351608 License management apparatus and method and license management system Jan. 8, 2013
8347376 Techniques for distributing a new communication key within a virtual private network Jan. 1, 2013
8347349 Configuring browser policy settings on client computing devices Jan. 1, 2013
8347090 Encryption of identifiers in a communication system Jan. 1, 2013
8345877 Key management system Jan. 1, 2013
8345875 System and method of creating and sending broadcast and multicast data Jan. 1, 2013
8345713 Methods and apparatus for content scrambling in a communications system Jan. 1, 2013
8341753 Managing pre-release of a game application over a network Dec. 25, 2012
8341704 Secure communication between client device and server device Dec. 25, 2012
8341414 License managing method and device Dec. 25, 2012
8340301 Method for establishing a secret key between two nodes in a communication network Dec. 25, 2012
8340299 Key management system and method Dec. 25, 2012
8340298 Key management and user authentication for quantum cryptography networks Dec. 25, 2012
8340297 Method and apparatus for efficiently providing location of contents encryption key Dec. 25, 2012
8340296 Method and system for registering and verifying smart card certificate for users moving between public key infrastructure domains Dec. 25, 2012
8340286 Interleaving and deinterleaving method for preventing periodic position interference Dec. 25, 2012
8335915 Encryption based security system for network storage Dec. 18, 2012
8335314 Adaptive and secure modular connection Dec. 18, 2012
8334757 Controlling data access to and from an RFID device Dec. 18, 2012
8332923 Kerberized handover keying Dec. 11, 2012
8332653 Secure processing environment Dec. 11, 2012
8332638 Secure data parser method and system Dec. 11, 2012
8332636 Secure policy differentiation by secure kernel design Dec. 11, 2012
8332635 Updateable secure kernel extensions Dec. 11, 2012
8332633 Encryption processing for streaming media Dec. 11, 2012
8332624 Method and apparatus for encoding decision diagrams Dec. 11, 2012
8332536 Content protection continuity through authorized chains of components Dec. 11, 2012
8331567 Methods and apparatuses for generating dynamic pairwise master keys using an image Dec. 11, 2012
8331565 Message transmission method, preferably for an energy distribution network Dec. 11, 2012
8327148 Mobile system, service system, and key authentication method to manage key in local wireless communication Dec. 4, 2012
8327147 Non-transferable anonymous digital receipts Dec. 4, 2012
8327135 Native WI-FI architecture for 802.11 networks Dec. 4, 2012
8326264 Mobile communication network system and locking method of a mobile terminal apparatus Dec. 4, 2012
8325928 Security countermeasure for power analysis attacks Dec. 4, 2012
8325924 Managing group keys Dec. 4, 2012
8325922 Group key security in a multihop relay wireless network Dec. 4, 2012
8321690 Protecting digital media of various content types Nov. 27, 2012
8321686 Secure memory card with life cycle phases Nov. 27, 2012
8321680 Multisigning--a protocol for robust multiple party digital signatures Nov. 27, 2012
8321669 Electronic data communication system Nov. 27, 2012
8321663 Enhanced authorization process using digital signatures Nov. 27, 2012
8321660 Method and devices for reproducing encrypted content and approving reproduction Nov. 27, 2012
8320742 Method and apparatus for playing data between external device and TV set Nov. 27, 2012
8320569 Generating unique aliases for keys used with tape libraries Nov. 27, 2012
8320559 Identity-based-encryption system Nov. 27, 2012
8320556 Method to allow cryptographic processing of messages without sanitizing the cryptographic processor between messages Nov. 27, 2012
8316236 Determining security states using binary output sequences Nov. 20, 2012

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