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Class Information
Number: 380/280
Name: Cryptography > Key management > Key distribution > Key distribution center > Control vector or tag
Description: Subject matter wherein a key has associated data that limits key use.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8713321 Method and apparatus for verifiable generation of public keys Apr. 29, 2014
8687813 Methods circuits devices and systems for provisioning of cryptographic data to one or more electronic devices Apr. 1, 2014
8677140 Delivery point validation system Mar. 18, 2014
8656159 Versioning of modifiable encrypted documents Feb. 18, 2014
8646042 Hybrid device having a personal digital key and receiver-decoder circuit and methods of use Feb. 4, 2014
8638939 User authentication on an electronic device Jan. 28, 2014
8634561 Secure key management Jan. 21, 2014
8630416 Wireless device and method for rekeying with reduced packet loss for high-throughput wireless communications Jan. 14, 2014
8594335 Key verification system and method Nov. 26, 2013
8577030 Cryptographic processing system, key generation device, key delegation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing program Nov. 5, 2013
8548163 Simultaneous scalar multiplication method Oct. 1, 2013
8548171 Pair-wise keying for tunneled virtual private networks Oct. 1, 2013
8549301 Method and computer system for ensuring authenticity of an electronic transaction Oct. 1, 2013
8549321 IC chip, board, information processing equipment and storage medium Oct. 1, 2013
8542593 System and methods for error tolerant content delivery over multicast channels Sep. 24, 2013
8532289 Fast computation of a single coefficient in an inverse polynomial Sep. 10, 2013
8532303 Symmetric key distribution framework for the internet Sep. 10, 2013
8510552 System and method for file-level data protection Aug. 13, 2013
8498420 Symmetric key distribution framework for the internet Jul. 30, 2013
8488793 Efficient rebinding of partitioned content encrypted using broadcast encryption Jul. 16, 2013
8484469 Method, system and equipment for key distribution Jul. 9, 2013
8478995 Method of encrypting and transferring data between a sender and a receiver using a network Jul. 2, 2013
8437739 Method and apparatus for generating a cryptosync May. 7, 2013
8412948 Method and apparatus for digital signature generation and validation Apr. 2, 2013
8397083 System and method for efficiently deleting a file from secure storage served by a storage system Mar. 12, 2013
8384412 Circuit personalization Feb. 26, 2013
8369527 Access control over multicast Feb. 5, 2013
8345877 Key management system Jan. 1, 2013
8332922 Transferable restricted security tokens Dec. 11, 2012
8332633 Encryption processing for streaming media Dec. 11, 2012
8327146 Wireless communication using compact certificates Dec. 4, 2012
8321680 Multisigning--a protocol for robust multiple party digital signatures Nov. 27, 2012
8311214 Method for elliptic curve public key cryptographic validation Nov. 13, 2012
8296579 System and method for updating a basic input/output system (BIOS) Oct. 23, 2012
8291234 Delivery point validation system Oct. 16, 2012
8290164 Automatic recovery of TPM keys Oct. 16, 2012
8290151 Device and method for determining an inverse of a value related to a modulus Oct. 16, 2012
8284930 Simultaneous scalar multiplication method Oct. 9, 2012
8285991 Electronically signing a document Oct. 9, 2012
8285996 Verification of identity based signatures Oct. 9, 2012
8270612 Mapping compound keys Sep. 18, 2012
8219821 System and method for signature based data container recognition Jul. 10, 2012
8218768 Cryptosync design for a wireless communication system Jul. 10, 2012
8208638 Set of equipment for secure direct information transfer over the internet Jun. 26, 2012
8204230 Communication device, method for establishing a communication connection and method for using a communication connection Jun. 19, 2012
8201233 Secure extended authentication bypass Jun. 12, 2012
8195933 Method and system for computing digital certificate trust paths using transitive closures Jun. 5, 2012
8189792 Method and apparatus for performing cryptographic operations May. 29, 2012
8180060 Telemedical system May. 15, 2012
8165300 System and method for generalized authentication Apr. 24, 2012

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