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Class Information
Number: 713/178
Name: Electrical computers and digital processing systems: support > Multiple computer communication using cryptography > Particular communication authentication technique > Authentication by digital signature representation or digital watermark > Time stamp
Description: Subject matter wherein a time identifier is included in the verifiable record.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7421079 |
Method and apparatus for secure key replacement |
Sep. 2, 2008 |
| 7415612 |
Image encrypting method, and image decrypting method |
Aug. 19, 2008 |
| 7411868 |
Estimation of time within untrusted time device disconnected from trusted time device |
Aug. 12, 2008 |
| 7409557 |
System and method for distributing trusted time |
Aug. 5, 2008 |
| 7400695 |
System and method for time-marking data |
Jul. 15, 2008 |
| 7401225 |
Method and apparatus for publishing signature log entry |
Jul. 15, 2008 |
| 7398395 |
Using multiple watermarks to protect content material |
Jul. 8, 2008 |
| 7392390 |
Method and system for binding kerberos-style authenticators to single clients |
Jun. 24, 2008 |
| 7383582 |
Systems and methods for performing electronic surveillance |
Jun. 3, 2008 |
| 7360090 |
Method of and apparatus for authenticating control messages in a signaling network |
Apr. 15, 2008 |
| 7356699 |
Electronic watermark detection device and electronic watermark detection method |
Apr. 8, 2008 |
| 7346779 |
System and method for authenticating electronic documents |
Mar. 18, 2008 |
| 7340610 |
Trusted time stamping storage system |
Mar. 4, 2008 |
| 7333468 |
Digital phase locked loops for packet stream rate matching and restamping |
Feb. 19, 2008 |
| 7328349 |
Hash-based systems and methods for detecting, preventing, and tracing network worms and viruses |
Feb. 5, 2008 |
| 7328348 |
Method and system for securely timestamping digital data |
Feb. 5, 2008 |
| 7325132 |
Authentication method, system and apparatus of an electronic value |
Jan. 29, 2008 |
| 7315947 |
Author signatures for legal purposes |
Jan. 1, 2008 |
| 7315948 |
Time stamping method employing a separate ticket and stub |
Jan. 1, 2008 |
| 7305704 |
Management of trusted flow system |
Dec. 4, 2007 |
| 7305086 |
Reducing problems caused by variations in watermark detection results |
Dec. 4, 2007 |
| 7305552 |
Screen saver displaying identity content |
Dec. 4, 2007 |
| 7305558 |
Digital signing method |
Dec. 4, 2007 |
| 7302589 |
Method for securing memory mapped control registers |
Nov. 27, 2007 |
| 7296162 |
Time validation system |
Nov. 13, 2007 |
| 7296292 |
Method and apparatus in an application framework system for providing a port and network hardware resource firewall for distributed applications |
Nov. 13, 2007 |
| 7272720 |
Date-and-time management device and signature generation apparatus with date-and-time management function |
Sep. 18, 2007 |
| 7266696 |
Electronic postmarking without directly utilizing an electronic postmark server |
Sep. 4, 2007 |
| 7266698 |
Time stamping system for electronic documents and program medium for the same |
Sep. 4, 2007 |
| 7251728 |
Secure and reliable document delivery using routing lists |
Jul. 31, 2007 |
| 7251730 |
Method and apparatus for simplified audio authentication |
Jul. 31, 2007 |
| 7222236 |
Evidencing indicia of value using secret key cryptography |
May. 22, 2007 |
| 7213149 |
Message authentication |
May. 1, 2007 |
| 7206939 |
File storage system and a NAS server |
Apr. 17, 2007 |
| 7200682 |
Time stamp generating system |
Apr. 3, 2007 |
| 7181624 |
Information recording/playback apparatus and method |
Feb. 20, 2007 |
| 7181623 |
Scalable wide-area upload system and method |
Feb. 20, 2007 |
| 7181581 |
Method and apparatus for mirroring data stored in a mass storage system |
Feb. 20, 2007 |
| 7174392 |
Method for verifying time data, a system and a terminal |
Feb. 6, 2007 |
| 7167986 |
Upgradeable timestamp mechanism |
Jan. 23, 2007 |
| 7146504 |
Secure clock on computing device such as may be required in connection with a trust-based system |
Dec. 5, 2006 |
| 7139891 |
Method and system for timestamped virtual worm in a SAN |
Nov. 21, 2006 |
| 7137025 |
Key controlling system, key controlling apparatus, information encrypting apparatus, information decrypting apparatus and storage media for storing programs |
Nov. 14, 2006 |
| 7134021 |
Method and system for recovering the validity of cryptographically signed digital data |
Nov. 7, 2006 |
| 7124299 |
System, method and computer program product for auditing XML messages in a network-based message stream |
Oct. 17, 2006 |
| 7124190 |
Method for verifying chronological integrity of an electronic time stamp |
Oct. 17, 2006 |
| 7107456 |
Packaging evidence for long term validation |
Sep. 12, 2006 |
| 7099236 |
Worker management device |
Aug. 29, 2006 |
| 7092385 |
Policy control and billing support for call transfer in a session initiation protocol (SIP) network |
Aug. 15, 2006 |
| 7085930 |
Data transmission system |
Aug. 1, 2006 |
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