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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
8132024 Digital work protection system, recording apparatus, reproduction apparatus, and recording medium Mar. 6, 2012
8132021 Information processing apparatus, control method therefor and computer-readable storage medium Mar. 6, 2012
8132019 Arrangements for interfacing with a user access manager Mar. 6, 2012
8131999 Distance-preserving anonymization of data Mar. 6, 2012
8131994 Dual cryptographic keying Mar. 6, 2012
8131993 System and method for a commercial multimedia rental and distribution system Mar. 6, 2012
8131646 Reprogrammable security for controlling piracy and enabling interactive content using revocation status Mar. 6, 2012
8130965 Retrieval and transfer of encrypted hard drive content from DVR set-top boxes to a content transcription device Mar. 6, 2012
8130964 Systems and methods for identity-based encryption and related cryptographic techniques Mar. 6, 2012
8130963 Method and apparatus for secure key delivery for decrypting bulk digital content files at an unsecure site Mar. 6, 2012
8130962 Content protection method and apparatus Mar. 6, 2012
8130961 Method and system for client-server mutual authentication using event-based OTP Mar. 6, 2012
8130960 Method and apparatus for providing seamless file system encryption from a pre-boot environment into a firmware interface aware operating system Mar. 6, 2012
8130957 System and method for securing data Mar. 6, 2012
8130945 Encrypted cryptography system Mar. 6, 2012
8127148 Information recording device, information playback device, information recording method, information playback method, and information recording medium and program providing medium used therewi Feb. 28, 2012
8127135 Changing of shared encryption key Feb. 28, 2012
8126150 Storage medium processing method, storage medium processing device, and program Feb. 28, 2012
8126149 Communication apparatus having power-saving communication function, and communication method Feb. 28, 2012
8126148 Securing home agent to mobile node communication with HA-MN key Feb. 28, 2012
8122246 Method for generating decryption key, apparatus and method using decryption key Feb. 21, 2012
8121952 System, method, and service for delivering multimedia content by means of a permission to decrypt titles on a physical media Feb. 21, 2012
8121729 Remote diagnostic system for robots Feb. 21, 2012
8121294 System and method for a derivation function for key per page Feb. 21, 2012
8121290 Pseudo-random function calculating device and method and number-limited anonymous authentication system and method Feb. 21, 2012
8121289 Cryptographic method with integrated encryption and revocation, system, device and programs for implementing this method Feb. 21, 2012
8117461 Method of randomly and dynamically checking configuration integrity of a gaming system Feb. 14, 2012
8116457 Methods, apparatuses, and products for a secure circuit Feb. 14, 2012
8116456 Techniques for managing heterogeneous key stores Feb. 14, 2012
8116455 System and method for securely initializing and booting a security appliance Feb. 14, 2012
8116453 Gaming console-specific user authentication Feb. 14, 2012
8111828 Management of cryptographic keys for securing stored data Feb. 7, 2012
8108674 Transmitting/receiving system and method, transmitting apparatus and method, receiving apparatus and method, and program used therewith Jan. 31, 2012
8107629 Method of providing security for relay station Jan. 31, 2012
8103880 Method for communication between computing devices using coded values Jan. 24, 2012
8103593 Method and system for providing DRM license Jan. 24, 2012
8103004 Method, apparatus and system for use in distributed and parallel decryption Jan. 24, 2012
8103003 Method for setting communication parameters and communication device Jan. 24, 2012
8099607 Asymmetric crypto-graphy with rolling key security Jan. 17, 2012
8099598 Secure messaging system with automatic recipient enrollment Jan. 17, 2012
8099592 System and method for controlling data communications between a server and a client device Jan. 17, 2012
8099367 Method and arrangement for variably generating cryptographic securities in a host device Jan. 17, 2012
8099364 Digital rights management of content when content is a future live event Jan. 17, 2012
8098828 Key distribution Jan. 17, 2012
8098825 Method and system for enhancing data encryption using multiple-key lists Jan. 17, 2012
8098824 Storage apparatus and data management method Jan. 17, 2012
8098823 Multi-key cryptographically generated address Jan. 17, 2012
8095790 Information processing apparatus and method, and computer program Jan. 10, 2012
8095787 Systems and methods for optimizing SSL handshake processing Jan. 10, 2012
8094822 Broadcast encryption key distribution system Jan. 10, 2012

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