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Class Information
Number: 380/260
Name: Cryptography > Communication system using cryptography > Symmetric key cryptography > Symmetric key synchronization
Description: Subject matter including transmission of a signal for generating identical transmitting and receiving keys in step relationship.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623657 |
Methods and apparatus for secure and adaptive delivery of multimedia content |
Nov. 24, 2009 |
| 7623723 |
Method for random point and patterned noise reduction in digital images |
Nov. 24, 2009 |
| 7600121 |
Message security |
Oct. 6, 2009 |
| 7586835 |
Apparatus for generating 2D spreading code and method for the same |
Sep. 8, 2009 |
| 7587049 |
Active stabilization of a one-way QKD system |
Sep. 8, 2009 |
| 7580524 |
Method and apparatus for synchronizing the emitter and the receiver in an autocompensating quantum cryptography system |
Aug. 25, 2009 |
| 7570766 |
Transparently embedding non-compliant data in a data stream |
Aug. 4, 2009 |
| 7552344 |
Hardware-based encryption/decryption employing dual ported key storage |
Jun. 23, 2009 |
| 7532876 |
Communication system and associated method of performing mutual authentication |
May. 12, 2009 |
| 7529371 |
Replaceable sequenced one-time pads for detection of cloned service client |
May. 5, 2009 |
| RE40708 |
Dual encryption protocol for scalable secure group communication |
May. 5, 2009 |
| 7522727 |
Method and apparatus for providing authentication in a communication system |
Apr. 21, 2009 |
| 7512238 |
Method and apparatus for detection of loss of cipher synchronization |
Mar. 31, 2009 |
| 7502472 |
Encryption system and method for encrypting/decrypting sensitive data |
Mar. 10, 2009 |
| 7490240 |
Electronically signing a document |
Feb. 10, 2009 |
| 7484107 |
Method for selective encryption within documents |
Jan. 27, 2009 |
| 7480383 |
Apparatus and method for scrambling high-rate data |
Jan. 20, 2009 |
| 7477743 |
Hybrid network encrypt/decrypt scheme |
Jan. 13, 2009 |
| 7471795 |
Information transmission system |
Dec. 30, 2008 |
| 7466824 |
Method and system for encryption of streamed data |
Dec. 16, 2008 |
| 7440570 |
Method and apparatus for remote digital key generation |
Oct. 21, 2008 |
| 7433473 |
Data transmission method between a broadcasting center and a multimedia unit |
Oct. 7, 2008 |
| 7434052 |
Method and device for producing an encrypted payload data stream and method and device for decrypting an encrypted payload data stream |
Oct. 7, 2008 |
| 7424116 |
Method and apparatus for providing authentication in a communication system |
Sep. 9, 2008 |
| 7401223 |
Authentication chip for authenticating an untrusted chip |
Jul. 15, 2008 |
| 7369661 |
Method and apparatus for detection of loss of cipher synchronization |
May. 6, 2008 |
| 7369662 |
Maintaining end-to-end synchronization on a telecommunications connection |
May. 6, 2008 |
| 7370111 |
System, protocol and related methods for providing secure manageability |
May. 6, 2008 |
| 7366917 |
System and method for accessing discrete data |
Apr. 29, 2008 |
| 7362864 |
Framing of transmit encoded data and linear feedback shifting |
Apr. 22, 2008 |
| 7319758 |
Electronic device with encryption/decryption cells |
Jan. 15, 2008 |
| 7317799 |
Cryptographic key distribution using key folding |
Jan. 8, 2008 |
| 7313236 |
Methods and apparatus for secure and adaptive delivery of multimedia content |
Dec. 25, 2007 |
| 7298850 |
Encrypting keypad module |
Nov. 20, 2007 |
| 7289630 |
Counter initialization, particularly for radio frames |
Oct. 30, 2007 |
| 7251729 |
Authentication method for establishing connection between devices |
Jul. 31, 2007 |
| 7237110 |
Authentication system, authentication apparatus, authentication target apparatus, authentication method, method of being authenticated, program and information recording medium |
Jun. 26, 2007 |
| 7225331 |
System and method for securing data on private networks |
May. 29, 2007 |
| 7215772 |
Method and apparatus for remote digital key generation |
May. 8, 2007 |
| 7197642 |
Consumable authentication protocol and system |
Mar. 27, 2007 |
| 7181431 |
Interactive information services system and associated method for facilitating purchasing transactions |
Feb. 20, 2007 |
| 7178030 |
Electronically signing a document |
Feb. 13, 2007 |
| 7158640 |
Method and apparatus for re-synchronization of a stream cipher during handoff |
Jan. 2, 2007 |
| 7151832 |
Dynamic encryption and decryption of a stream of data |
Dec. 19, 2006 |
| 7151946 |
Controller for reducing latency in a group communication network |
Dec. 19, 2006 |
| 7133525 |
Communication security apparatus and method of using same |
Nov. 7, 2006 |
| 7133522 |
Method and apparatus for encryption of data |
Nov. 7, 2006 |
| 7124434 |
Information transmission system, and information sending apparatus and information receiving apparatus used therein |
Oct. 17, 2006 |
| 7120696 |
Cryptographic communications using pseudo-randomly generated cryptography keys |
Oct. 10, 2006 |
| 7110546 |
Synchronization of session keys |
Sep. 19, 2006 |
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