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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
8051291 Unique block header patterns for media verification Nov. 1, 2011
8050408 Techniques for managing keys using a key server in a network segment Nov. 1, 2011
8050407 Method and system for protecting keys Nov. 1, 2011
8050406 Key table and authorization table management Nov. 1, 2011
8046587 Method off-line authentication on a limited-resource device Oct. 25, 2011
8046582 Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus Oct. 25, 2011
8045716 System and method for the concealment of device input parameters Oct. 25, 2011
8045715 Method of handling security key change and related communication device Oct. 25, 2011
8045714 Systems and methods for managing multiple keys for file encryption and decryption Oct. 25, 2011
8045713 Cryptographic key update management method and apparatus Oct. 25, 2011
8045708 Discrete key generation method and apparatus Oct. 25, 2011
8041959 Computer system, storage system and management computer for backing up and restore encryption key for storage system incorporating therein a stored data encryption function Oct. 18, 2011
8041035 Automatic configuration of devices upon introduction into a networked environment Oct. 18, 2011
8037534 Strategies for ensuring that executable content conforms to predetermined patterns of behavior ("inverse virus checking") Oct. 11, 2011
8037321 Method and apparatus for the secure storage of audio signals Oct. 11, 2011
8037319 System and method for securely storing cryptographic keys with encrypted data Oct. 11, 2011
8037314 Replacing blinded authentication authority Oct. 11, 2011
8037306 Method for realizing network access authentication Oct. 11, 2011
8037298 System and method for providing security via a top level domain Oct. 11, 2011
8037294 Authentication of products using identification tags Oct. 11, 2011
8036384 Enhanced shared secret provisioning protocol Oct. 11, 2011
8036379 Cryptographic processing Oct. 11, 2011
8032759 Verifying signatures for multiple encodings Oct. 4, 2011
8032743 Reliance server for electronic transaction system Oct. 4, 2011
8031875 Key distribution in unidirectional channels with applications to RFID Oct. 4, 2011
8031239 Image sensing apparatus for generating image data authentication data of the image data Oct. 4, 2011
8027475 Methods and media for recovering lost encryption keys Sep. 27, 2011
8024810 Method and apparatus for protecting digital data by double re-encryption Sep. 20, 2011
8024583 Confidential information processing host device and confidential information processing method Sep. 20, 2011
8024582 Encryption of data to be stored in an information processing system Sep. 20, 2011
8024572 Data storage and removal Sep. 20, 2011
8023656 Automated key management system and method Sep. 20, 2011
8023655 System, method, and service for tracing traitors from content protection circumvention devices Sep. 20, 2011
8023649 Method and apparatus for cellular automata based generation of pseudorandom sequences with controllable period Sep. 20, 2011
8023417 Failover mechanisms in RDMA operations Sep. 20, 2011
8019997 Information processing apparatus and method, recording medium, and program Sep. 13, 2011
8019994 Authentication of a request to alter at least one of a BIOS and a setting associated with the BIOS Sep. 13, 2011
8019085 System and method for sending encrypted messages to a distribution list Sep. 13, 2011
8019080 Method and apparatus for providing content service Sep. 13, 2011
8015614 Information security device Sep. 6, 2011
8015597 Disseminating additional data used for controlling access Sep. 6, 2011
8015393 Data processing device, encryption communication method, key generation method, and computer program Sep. 6, 2011
8015211 Secure peer-to-peer object storage system Sep. 6, 2011
8014528 Method for accessing a user operable device of controlled access Sep. 6, 2011
8014523 Key management Sep. 6, 2011
8011012 Program substitution Aug. 30, 2011
8010989 System and method for configuring devices for secure operations Aug. 30, 2011
8010810 Techniques for protecting data using an electronic encryption endpoint device Aug. 30, 2011
8010805 Secure porting of information from one device to another Aug. 30, 2011
8010787 Communication device, communication log transmitting method suitable for communication device, and communication system Aug. 30, 2011

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