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Class Information
Number: 380/259
Name: Cryptography > Communication system using cryptography > Symmetric key cryptography
Description: Subject matter wherein the encryption and decryption keys are the same.










Sub-classes under this class:

Class Number Class Name Patents
380/265 Combining outputs of shift register 132
380/266 Including a modem 82
380/264 Key derived from addressable memory element 195
380/260 Symmetric key synchronization 278


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8707042 Sharing keys between cooperating parties Apr. 22, 2014
8694769 System and method for controlling data communications between a server and a client device Apr. 8, 2014
8681994 Systems and methods for document control using public key encryption Mar. 25, 2014
8683571 System and method for authentication of users in a secure computer system Mar. 25, 2014
8683227 Communication system for updating old data with new data Mar. 25, 2014
8681985 Masking operation method and device for symmetric key encrypted system Mar. 25, 2014
8681982 Method of establishing a quantum key for use between network nodes Mar. 25, 2014
8681972 Method of executing a cryptographic calculation Mar. 25, 2014
8675866 Multiplicative splits to protect cipher keys Mar. 18, 2014
8676878 Domain managing method, domain extending method and reference point controller electing method Mar. 18, 2014
8670565 Encrypted packet communication system Mar. 11, 2014
8667285 Remote authentication and transaction signatures Mar. 4, 2014
8667274 System and method for WORM data storage Mar. 4, 2014
8667266 System and method for sending encrypted messages to a distribution list Mar. 4, 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
8666064 Endecryptor capable of performing parallel processing and encryption/decryption method thereof Mar. 4, 2014
8660265 Cipher implementation Feb. 25, 2014
8661249 Health keyset management Feb. 25, 2014
8644513 Database processing on externally encrypted data Feb. 4, 2014
8644516 Universal secure messaging for cryptographic modules Feb. 4, 2014
8645681 Techniques for distributing secure communication secrets Feb. 4, 2014
8639929 Method, device and system for authenticating gateway, node and server Jan. 28, 2014
8638938 Symmetric key subscription Jan. 28, 2014
8634556 Communication apparatus and control method Jan. 21, 2014
8630420 Method for auto-configuration of a network terminal address Jan. 14, 2014
8625805 Digital security bubble Jan. 7, 2014
8619975 Cipher processing apparatus Dec. 31, 2013
8615085 Encrypted communication system with limited number of stored encryption key retrievals Dec. 24, 2013
8613057 Identity management facilitating minimum disclosure of user data Dec. 17, 2013
8600062 Off-line content delivery system with layered encryption Dec. 3, 2013
8601286 Saving and retrieving data based on public key encryption Dec. 3, 2013
8588743 Communication device and communication system Nov. 19, 2013
8588415 Method for securing a telecommunications terminal which is connected to a terminal user identification module Nov. 19, 2013
8588410 Simplified secure symmetrical key management Nov. 19, 2013
8582761 Cryptographic method with elliptical curves Nov. 12, 2013
8571210 Content protection apparatus and method using binding of additional information to encryption key Oct. 29, 2013
8565434 Methods and systems for maintaining security keys for wireless communication Oct. 22, 2013
8566587 Network system and method for operating network system Oct. 22, 2013
8566916 Agile OTP generation Oct. 22, 2013
8553880 Pseudorandom number generating system, encryption system, and decryption system Oct. 8, 2013
8555354 Systems and methods for secure watchlisting Oct. 8, 2013
8549321 IC chip, board, information processing equipment and storage medium Oct. 1, 2013
8548171 Pair-wise keying for tunneled virtual private networks Oct. 1, 2013
8548163 Simultaneous scalar multiplication method Oct. 1, 2013
8542827 Shared encryption key generation via accelerometer digitization Sep. 24, 2013
8542833 Systems and methods to secure laptops or portable computing devices Sep. 24, 2013
8543813 Method and apparatus to implement valid mobile ticket transfer Sep. 24, 2013
8544077 Internet protocol telephony security architecture Sep. 24, 2013
8538021 Sending apparatus, receiving apparatus, sending method, and receiving method Sep. 17, 2013
8538020 Hybrid client-server cryptography for network applications Sep. 17, 2013

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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