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Class Information
Number: 380/255
Name: Cryptography > Communication system using cryptography
Description: Subject matter including cryptographic structure or methods which protect the transmission or reception of information.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7409543 |
Method and apparatus for using a third party authentication server |
Aug. 5, 2008 |
| 7403615 |
Methods and apparatus for accelerating ARC4 processing |
Jul. 22, 2008 |
| 7400723 |
Secure method for secret key cryptographic calculation and component using said method |
Jul. 15, 2008 |
| 7400730 |
Cryptographic communication method in communication system |
Jul. 15, 2008 |
| 7397922 |
Group security |
Jul. 8, 2008 |
| 7392384 |
Method and system for secure storage, transmission and control of cryptographic keys |
Jun. 24, 2008 |
| 7388957 |
Elliptic curve exponentiation apparatus that can counter differential fault attack, and information security apparatus |
Jun. 17, 2008 |
| 7386734 |
Real time data encryption/decryption system and method for IDE/ATA data transfer |
Jun. 10, 2008 |
| 7383439 |
Apparatus and method for facilitating encryption and decryption operations over an email server using an unsupported protocol |
Jun. 3, 2008 |
| 7383577 |
Method and system for encrypted network management and intrusion detection |
Jun. 3, 2008 |
| 7380134 |
Information recording/reproducing apparatus and method of executing encryption processing |
May. 27, 2008 |
| 7380131 |
Copy protection without non-volatile memory |
May. 27, 2008 |
| 7380124 |
Security transmission protocol for a mobility IP network |
May. 27, 2008 |
| 7380118 |
Data transmitting apparatus, data receiving apparatus, data transmission system and data transmission method |
May. 27, 2008 |
| 7376976 |
Transcryption of digital content between content protection systems |
May. 20, 2008 |
| RE40334 |
Method and apparatus for encrypted data stream transmission |
May. 20, 2008 |
| 7372962 |
Storage system executing encryption and decryption processing |
May. 13, 2008 |
| 7373507 |
System and method for establishing secure communication |
May. 13, 2008 |
| 7369662 |
Maintaining end-to-end synchronization on a telecommunications connection |
May. 6, 2008 |
| 7367045 |
Trusted communications system |
Apr. 29, 2008 |
| 7366300 |
Methods and apparatus for implementing a cryptography engine |
Apr. 29, 2008 |
| 7359514 |
Narrow-band single-photon source and QKD system using same |
Apr. 15, 2008 |
| 7360076 |
Security association data cache and structure |
Apr. 15, 2008 |
| 7352861 |
Digital electronic component which is protected against electrical-type analyses |
Apr. 1, 2008 |
| 7349543 |
Secure foreign enterprise printing |
Mar. 25, 2008 |
| 7346160 |
Randomization-based encryption apparatus and method |
Mar. 18, 2008 |
| 7346162 |
Public key cryptography using matrices |
Mar. 18, 2008 |
| 7346165 |
Apparatus and method for generating scrambling code in mobile communication system |
Mar. 18, 2008 |
| 7346778 |
Security method and apparatus for controlling the data exchange on handheld computers |
Mar. 18, 2008 |
| 7343439 |
Removable modules with external I/O flexibility via an integral second-level removable slot |
Mar. 11, 2008 |
| 7340053 |
Cipher strength estimating device |
Mar. 4, 2008 |
| 7336789 |
System for providing encrypted data, system for decrypting encrypted data and method for providing a communication interface in such a decrypting system |
Feb. 26, 2008 |
| 7333609 |
Encrypting apparatus |
Feb. 19, 2008 |
| 7334257 |
Techniques for preserving content during a redirection for authentication |
Feb. 19, 2008 |
| 7330653 |
Quantum dense coding system |
Feb. 12, 2008 |
| 7327845 |
Transmission of encrypted messages between a transmitter and a receiver utilizing a one-time cryptographic pad |
Feb. 5, 2008 |
| 7324647 |
Quantum cryptographic key distribution networks with untrusted switches |
Jan. 29, 2008 |
| 7321968 |
Method and apparatus for encoding, transmitting and decoding a digital message |
Jan. 22, 2008 |
| 7319681 |
Method and apparatus for securing media access control (MAC) addresses |
Jan. 15, 2008 |
| 7316616 |
Gaming system license management |
Jan. 8, 2008 |
| 7318050 |
Biometric certifying authorities |
Jan. 8, 2008 |
| 7315948 |
Time stamping method employing a separate ticket and stub |
Jan. 1, 2008 |
| 7315945 |
Directoryless public key cryptographic system and method |
Jan. 1, 2008 |
| 7310823 |
Digital information recording apparatus and outputting apparatus |
Dec. 18, 2007 |
| 7308016 |
System and method for securing signals |
Dec. 11, 2007 |
| 7305545 |
Automated electronic messaging encryption system |
Dec. 4, 2007 |
| 7305091 |
Quantum cipher communication system |
Dec. 4, 2007 |
| 7296147 |
Authentication system and key registration apparatus |
Nov. 13, 2007 |
| 7296163 |
System and methods for encrypted execution of computer programs |
Nov. 13, 2007 |
| 7290148 |
Encryption and decryption communication semiconductor device and recording/reproducing apparatus |
Oct. 30, 2007 |
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