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Class Information
Number: 380/37
Name: Cryptography > Communication system using cryptography > Time segment interchange > Block/data stream enciphering
Description: Subject matter wherein time interchanged data segments are processed either in discrete blocks, or a continuous stream, of bits or pulses which serially comprise the message stream.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7403615 |
Methods and apparatus for accelerating ARC4 processing |
Jul. 22, 2008 |
| 7403620 |
Cyphering/decyphering performed by an integrated circuit |
Jul. 22, 2008 |
| 7400730 |
Cryptographic communication method in communication system |
Jul. 15, 2008 |
| 7400723 |
Secure method for secret key cryptographic calculation and component using said method |
Jul. 15, 2008 |
| 7391865 |
Secure data parser method and system |
Jun. 24, 2008 |
| 7386131 |
Tolerant digital certificate distribute system and distribute method |
Jun. 10, 2008 |
| 7386124 |
Block encoding method and block encoding/decoding circuit |
Jun. 10, 2008 |
| 7382876 |
Hash function constructions from expander graphs |
Jun. 3, 2008 |
| 7382878 |
System and method for data encryption |
Jun. 3, 2008 |
| 7380131 |
Copy protection without non-volatile memory |
May. 27, 2008 |
| 7366300 |
Methods and apparatus for implementing a cryptography engine |
Apr. 29, 2008 |
| 7362859 |
Enhancement of utilization of encryption engine |
Apr. 22, 2008 |
| 7349539 |
Encoding and encrypting devices for secure scalable data streaming |
Mar. 25, 2008 |
| 7346163 |
Dynamic composition of pre-encrypted video on demand content |
Mar. 18, 2008 |
| 7346161 |
Method and apparatus for designing cipher logic, and a computer product |
Mar. 18, 2008 |
| 7336783 |
Cryptographic systems and methods supporting multiple modes |
Feb. 26, 2008 |
| 7334124 |
Logical access block processing protocol for transparent secure file storage |
Feb. 19, 2008 |
| 7333609 |
Encrypting apparatus |
Feb. 19, 2008 |
| 7333614 |
System and method for encypting spread spectrum carrier |
Feb. 19, 2008 |
| 7328339 |
Method of testing the encryption function of a device |
Feb. 5, 2008 |
| 7328352 |
Apparatus and method for reading or writing user data |
Feb. 5, 2008 |
| 7324644 |
Scheme for transferring copyright protected contents data using radio link layer authentication/encryption |
Jan. 29, 2008 |
| 7324648 |
Method and apparatus for secure key delivery for decrypting bulk digital content files at an unsecure site |
Jan. 29, 2008 |
| 7321658 |
Padding application method ensuring security of cryptosystem and encryptor/decryptor |
Jan. 22, 2008 |
| 7321659 |
Simple universal hash for plaintext aware encryption |
Jan. 22, 2008 |
| 7319756 |
Audio coding |
Jan. 15, 2008 |
| 7319751 |
Data encryption |
Jan. 15, 2008 |
| 7317795 |
Pipelined deciphering round keys generation |
Jan. 8, 2008 |
| 7308468 |
Pattern matching |
Dec. 11, 2007 |
| 7305084 |
Fast encryption and authentication for data processing systems |
Dec. 4, 2007 |
| 7305085 |
Encryption apparatus and method, and decryption apparatus and method based on block encryption |
Dec. 4, 2007 |
| 7298840 |
Method and system for data integrity protection |
Nov. 20, 2007 |
| 7295672 |
Method and apparatus for fast RC4-like encryption |
Nov. 13, 2007 |
| 7289629 |
Primitives for fast secure hash functions and stream ciphers |
Oct. 30, 2007 |
| 7290151 |
Logic circuit with variable internal polarities |
Oct. 30, 2007 |
| 7283628 |
Programmable data encryption engine |
Oct. 16, 2007 |
| 7280657 |
Data encryption and decryption system and method using merged ciphers |
Oct. 9, 2007 |
| 7280659 |
Pseudorandom number generating apparatus or encryption or decryption apparatus using the same |
Oct. 9, 2007 |
| 7277542 |
Stream cipher encryption application accelerator and methods thereof |
Oct. 2, 2007 |
| 7277541 |
Method and system for using a portion of a digital good as a substitution box |
Oct. 2, 2007 |
| 7274792 |
Methods and apparatus for initialization vector processing |
Sep. 25, 2007 |
| 7266686 |
Multicasting method and apparatus |
Sep. 4, 2007 |
| 7263186 |
Speed-up hardware architecture for CCMP encryption protocol |
Aug. 28, 2007 |
| 7260218 |
Configurable circuit with configuration data protection features |
Aug. 21, 2007 |
| 7260217 |
Speculative execution for data ciphering operations |
Aug. 21, 2007 |
| 7257229 |
Apparatus and method for key scheduling |
Aug. 14, 2007 |
| 7257224 |
Cryptographical pseudo-random number generation apparatus and program |
Aug. 14, 2007 |
| 7254232 |
Method and system for selecting encryption keys from a plurality of encryption keys |
Aug. 7, 2007 |
| 7254233 |
Fast encryption and authentication for data processing systems |
Aug. 7, 2007 |
| 7254234 |
Method and apparatus for encrypting and decrypting information |
Aug. 7, 2007 |
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