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Class Information
Number: 380/42
Name: Cryptography > Communication system using cryptography > Data stream/substitution enciphering
Description: Subject matter which encrypts a message signal composed of a stream of data elements serially and continuously to produce a stream of the corresponding encrypted data elements.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623656 |
Stream cipher encryption and message authentication |
Nov. 24, 2009 |
| 7623657 |
Methods and apparatus for secure and adaptive delivery of multimedia content |
Nov. 24, 2009 |
| 7616762 |
System and method for authenticating/registering network device in power line communication (PLC) |
Nov. 10, 2009 |
| 7606364 |
Disk drive with flexible data stream encryption |
Oct. 20, 2009 |
| 7602906 |
Cipher for disk encryption |
Oct. 13, 2009 |
| 7602915 |
Communication system having plurality of nodes sharing a common cipher key, cipher key dispatching apparatus for use in the system, and anti-theft apparatus utilizing information derived from |
Oct. 13, 2009 |
| 7602909 |
Self-service terminal |
Oct. 13, 2009 |
| 7590242 |
Selective multimedia data encryption |
Sep. 15, 2009 |
| 7590882 |
System, method and storage medium for bus calibration in a memory subsystem |
Sep. 15, 2009 |
| 7583800 |
Encryption apparatus and method in a wireless communications system |
Sep. 1, 2009 |
| 7580519 |
Triple DES gigabit/s performance using single DES engine |
Aug. 25, 2009 |
| 7580520 |
Methods for scaling a progressively encrypted sequence of scalable data |
Aug. 25, 2009 |
| 7574571 |
Hardware-based encryption/decryption employing dual ported memory and fast table initialization |
Aug. 11, 2009 |
| 7571465 |
Information exchanging system, information communication terminal, information exchanging method, and computer product |
Aug. 4, 2009 |
| 7551736 |
Physical layer header scrambling in satellite broadcast systems |
Jun. 23, 2009 |
| 7526089 |
Device and method for controlling digital bidirectional communication |
Apr. 28, 2009 |
| 7522724 |
System and method of transmission of generalized scalable bit-streams |
Apr. 21, 2009 |
| 7522725 |
Method and apparatus for composable block re-encryption of publicly distributed content |
Apr. 21, 2009 |
| 7512804 |
Data storage security apparatus and system |
Mar. 31, 2009 |
| 7512805 |
Machine readable medium and method for data storage security |
Mar. 31, 2009 |
| 7512813 |
Method for system level protection of field programmable logic devices |
Mar. 31, 2009 |
| 7505589 |
Ternary and higher multi-value digital scramblers/descramblers |
Mar. 17, 2009 |
| 7505588 |
Stream cipher design with revolving buffers |
Mar. 17, 2009 |
| 7502463 |
Methods and apparatus for implementing a cryptography engine |
Mar. 10, 2009 |
| 7483535 |
Transmission of generalized scalable bit-streams |
Jan. 27, 2009 |
| 7457419 |
Information processing method and apparatus for encrypting encoded data |
Nov. 25, 2008 |
| 7454016 |
Data encryption system and method |
Nov. 18, 2008 |
| 7450717 |
Self authentication ciphertext chaining |
Nov. 11, 2008 |
| 7440570 |
Method and apparatus for remote digital key generation |
Oct. 21, 2008 |
| 7430292 |
Methods and systems for securing information communicated between communication devices |
Sep. 30, 2008 |
| 7428306 |
Encryption apparatus and method for providing an encrypted file system |
Sep. 23, 2008 |
| 7426272 |
Instrumentation privacy methods and apparatuses |
Sep. 16, 2008 |
| 7424112 |
Ciphertext switching for syntax compliant encryption |
Sep. 9, 2008 |
| 7421076 |
Advanced encryption standard (AES) engine with real time S-box generation |
Sep. 2, 2008 |
| 7421080 |
Method of reconstructing a secret, shared secret reconstruction apparatus, and secret reconstruction system |
Sep. 2, 2008 |
| 7418098 |
Data type preserving encryption |
Aug. 26, 2008 |
| 7412605 |
Method and apparatus for variable encryption of data |
Aug. 12, 2008 |
| 7403615 |
Methods and apparatus for accelerating ARC4 processing |
Jul. 22, 2008 |
| 7400730 |
Cryptographic communication method in communication system |
Jul. 15, 2008 |
| 7386124 |
Block encoding method and block encoding/decoding circuit |
Jun. 10, 2008 |
| 7382876 |
Hash function constructions from expander graphs |
Jun. 3, 2008 |
| 7380132 |
Data recording method and apparatus, data record medium and data reproducing method and apparatus |
May. 27, 2008 |
| 7376826 |
Methods and apparatus for performing encryption and authentication |
May. 20, 2008 |
| 7366302 |
Apparatus and method for an iterative cryptographic block |
Apr. 29, 2008 |
| 7366299 |
Method for encrypting and decrypting data using derivative equations and factors |
Apr. 29, 2008 |
| 7360084 |
System, device, and method for controlling access in a multicast communication network |
Apr. 15, 2008 |
| 7352862 |
Encryption method, communication system, transmission device, and data input device |
Apr. 1, 2008 |
| 7346161 |
Method and apparatus for designing cipher logic, and a computer product |
Mar. 18, 2008 |
| 7346160 |
Randomization-based encryption apparatus and method |
Mar. 18, 2008 |
| 7346165 |
Apparatus and method for generating scrambling code in mobile communication system |
Mar. 18, 2008 |
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