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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:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next

Patent Number Title Of Patent Date Issued
8233895 Methods and apparatus for use in transferring user data between two different mobile communication devices using a removable memory card Jul. 31, 2012
8233628 Information processing apparatus and information processing method Jul. 31, 2012
8233627 Method and system for managing a key for encryption or decryption of data Jul. 31, 2012
8233626 Storage system and storage system management method Jul. 31, 2012
8233620 Key recovery mechanism for cryptographic systems Jul. 31, 2012
8233617 Resilient cryptographic scheme Jul. 31, 2012
8230487 Method and system for controlling access to a secondary system Jul. 24, 2012
8230236 Secure digital content distribution system and secure hard drive Jul. 24, 2012
8230214 Systems and methods for optimizing SSL handshake processing Jul. 24, 2012
8230088 Remote computer system management through an FTP internet connection Jul. 24, 2012
8229857 Secure pre-recorded digital medium Jul. 24, 2012
8229742 Transcription data security Jul. 24, 2012
8229121 Method of tracing device keys for broadcast encryption Jul. 24, 2012
8229114 Identity-based key generating methods and devices Jul. 24, 2012
8225415 Content distribution system, terminal, and server Jul. 17, 2012
8225106 Differential encryption utilizing trust modes Jul. 17, 2012
8225095 Password-authenticated asymmetric key exchange Jul. 17, 2012
8223973 Mix-net system Jul. 17, 2012
8223972 Method and device for speeding up key use in key management software with tree structure Jul. 17, 2012
8223971 Apparatus and method for encrypting security key in mobile communication terminal Jul. 17, 2012
8223970 Message deciphering method, system and article Jul. 17, 2012
8219808 Session-based public key infrastructure Jul. 10, 2012
8219806 Management system, management apparatus and management method Jul. 10, 2012
8218773 Systems and methods to securely generate shared keys Jul. 10, 2012
8218772 Secure multicast content delivery Jul. 10, 2012
8218771 Information processing apparatus and computer readable medium Jul. 10, 2012
8218770 Method and apparatus for secure key management and protection Jul. 10, 2012
8218769 Encrypted communication system, communication status management server, encrypted communication method, and communication status management method Jul. 10, 2012
8218763 Method for ensuring the validity of recovered electronic documents from remote storage Jul. 10, 2012
8216135 Ambulatory repeater for use in automated patient care Jul. 10, 2012
8214651 Radio frequency identification (RFID) based authentication system and methodology Jul. 3, 2012
8213939 Mobile communication method Jul. 3, 2012
8213618 Protecting content on client platforms Jul. 3, 2012
8213612 Secure software download Jul. 3, 2012
8213610 Generation of key streams in wireless communication systems Jul. 3, 2012
8213608 Roaming utilizing an asymmetric key pair Jul. 3, 2012
8209537 Secure information distribution between nodes (network devices) Jun. 26, 2012
8209532 System and method for implementing security of multi-party-communication Jun. 26, 2012
8208638 Set of equipment for secure direct information transfer over the internet Jun. 26, 2012
8208635 Wireless mesh network with secure automatic key loads to wireless devices Jun. 26, 2012
8208631 Group management apparatus, and information processing apparatus and method Jun. 26, 2012
8208630 Encryption and utilization of hard drive content Jun. 26, 2012
8205088 Method for the authenticated transmission of a personalized data set or program to a hardware security module in particular of a franking machine Jun. 19, 2012
8205085 Key update system, key management device, communication terminal, and key information construction method for multihop network Jun. 19, 2012
8204232 Accelerated verification of digital signatures and public keys Jun. 19, 2012
8204230 Communication device, method for establishing a communication connection and method for using a communication connection Jun. 19, 2012
8204229 Method and system for distributing key of media stream Jun. 19, 2012
8204228 Group key management re-registration method Jun. 19, 2012
8204227 Information processing apparatus, control method thereof, and computer program Jun. 19, 2012
8204226 Encoding and recording apparatus, playback apparatus, and program Jun. 19, 2012

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