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Class Information
Number: 380/283
Name: Cryptography > Key management > Key distribution > User-to-user key distributed over data link (i.e., no center)
Description: Subject matter wherein a key is directly distributed between users over the same channel as the data.

Sub-classes under this class:

Class Number Class Name Patents
380/285 By public key method 382
380/284 Using master key (e.g., key-encrypting-key) 356

Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8713303 Method and system for establishing security connection between switch equipments Apr. 29, 2014
8713329 Authenticated secret sharing Apr. 29, 2014
8713597 Authenticating and off-loading IPTV operations from mobile devices to fixed rendering viewing devices Apr. 29, 2014
8712044 Key management system Apr. 29, 2014
8707415 Method for storing data, computer program product, ID token and computer system Apr. 22, 2014
8694789 System and method for generating a non-repudiatable record of a data stream Apr. 8, 2014
8688989 Receiver non-repudiation via a secure device Apr. 1, 2014
8676998 Reverse network authentication for nonstandard threat profiles Mar. 18, 2014
8677152 Method and apparatus for encrypting media programs for later purchase and viewing Mar. 18, 2014
8666072 Method and a system for receiving a multimedia signal, a cryptograophic entity for said reception method and system, and a method and a black box for producing said cryptographic entity Mar. 4, 2014
8656159 Versioning of modifiable encrypted documents Feb. 18, 2014
8656187 Dispersed storage secure data decoding Feb. 18, 2014
8638940 Control of an entity to be controlled by a control entity Jan. 28, 2014
8638939 User authentication on an electronic device Jan. 28, 2014
8634563 Attribute based encryption using lattices Jan. 21, 2014
8630416 Wireless device and method for rekeying with reduced packet loss for high-throughput wireless communications Jan. 14, 2014
8619995 Methods and apparatus related to address generation, communication and/or validation Dec. 31, 2013
8608064 Payment system and method of IC card and a multi-application IC card as well as a payment terminal Dec. 17, 2013
8594329 Non-interactive verifiable, delegated computation Nov. 26, 2013
8582761 Cryptographic method with elliptical curves Nov. 12, 2013
8582766 Method for ensuring media stream security in IP multimedia sub-system Nov. 12, 2013
8582777 Method and system for lightweight key distribution in a wireless network Nov. 12, 2013
8582779 System and method for secure communications in a communication system Nov. 12, 2013
8571210 Content protection apparatus and method using binding of additional information to encryption key Oct. 29, 2013
8568226 Master control program for a gaming device Oct. 29, 2013
8565437 Method and apparatus for remotely provisioning software-based security coprocessors Oct. 22, 2013
8559641 Application program distributing apparatus, image processing apparatus and program, allowing data communications using S/MIME at ease Oct. 15, 2013
8559642 Cryptographic communication with mobile devices Oct. 15, 2013
8560863 Systems and techniques for datapath security in a system-on-a-chip device Oct. 15, 2013
8549298 Secure online service provider communication Oct. 1, 2013
8548172 Secure dissemination of events in a publish/subscribe network Oct. 1, 2013
8548171 Pair-wise keying for tunneled virtual private networks Oct. 1, 2013
8532289 Fast computation of a single coefficient in an inverse polynomial Sep. 10, 2013
8533461 Wireless local area network terminal pre-authentication method and wireless local area network system Sep. 10, 2013
8526969 Nearby contact alert based on location and context Sep. 3, 2013
8516248 Communication apparatus Aug. 20, 2013
8510561 Methods and devices for computing a shared encryption key Aug. 13, 2013
8504819 Wireless LAN relay device, wireless communication system, and method for controlling wireless LAN relay device Aug. 6, 2013
8495375 Methods and systems for secure channel initialization Jul. 23, 2013
8495723 Method and system for the supply of data, transactions and electronic voting Jul. 23, 2013
8477948 Method and apparatus for forming security channel in short range communication Jul. 2, 2013
8477939 Polarization-insensitive one-way quantum key distribution receiver, transmitter/receiver system Jul. 2, 2013
8473741 System and method for comparing private data Jun. 25, 2013
8462942 Method and system for securing packetized voice transmissions Jun. 11, 2013
8458806 System and method for secure pin exchange Jun. 4, 2013
8452017 Methods and systems for secure channel initialization transaction security based on a low entropy shared secret May. 28, 2013
8447978 Wireless communication method using WPS May. 21, 2013
8423510 Real time backup system for computer users Apr. 16, 2013
8423794 Method and apparatus for upgrading a memory card that has security mechanisms for preventing copying of secure content and applications Apr. 16, 2013
8401196 Method and apparatus for performing JRNSO in FDD, TDD and MIMO communications Mar. 19, 2013

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