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Class Information
Number: 726/26
Name: Information security > Prevention of unauthorized use of data including prevention of piracy, privacy violations, or unauthorized data modification
Description: Subject matter comprising systems, methods, and apparatus for prohibiting any impersonation, unauthorized browsing, falsification or theft of data, or alteration of data not consistent with defined security policy.


Sub-classes under this class:

Class Number Class Name Patents
726/27 Access control 824
726/32 Copy detection 160
726/33 Copy inactivation 112
726/31 Limitations on number or amount of copies 152


Patents under this class:
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Patent Number Title Of Patent Date Issued
6785815 Methods and systems for encoding and protecting data using digital signature and watermarking techniques Aug. 31, 2004
6775779 Hierarchical trusted code for content protection in computers Aug. 10, 2004
6771446 Method and apparatus for disc drive data security using a servo wedge Aug. 3, 2004
6772340 Digital rights management system operating on computing device and having black box tied to computing device Aug. 3, 2004
6769061 Invisible encoding of meta-information Jul. 27, 2004
6760842 Finite state automata security system Jul. 6, 2004
6757699 Method and system for fragmenting and reconstituting data Jun. 29, 2004
6754827 Secure File Archive through encryption key management Jun. 22, 2004
6748538 Integrity scanner Jun. 8, 2004
6748540 Method and apparatus for detection and notification of unauthorized access attempts in a distributed data processing system Jun. 8, 2004
6732180 Method to inhibit the identification and retrieval of proprietary media via automated search engines utilized in association with computer compatible communications network May. 4, 2004
6732271 Method of deciphering ciphered data and apparatus for same May. 4, 2004
6728883 Additional information superimposing apparatus, additional information superimposing method, additional information detecting apparatus, and additional information detecting method Apr. 27, 2004
6722570 Smart data storage device Apr. 20, 2004
6715077 System and method to support varying maximum cryptographic strength for common data security architecture (CDSA) applications Mar. 30, 2004
6697942 Method for remotely managing a remote device using an electronic mail message Feb. 24, 2004
6694435 Method of obfuscating computer instruction streams Feb. 17, 2004
6688230 Method of printing a token by a printer Feb. 10, 2004
6691228 Signal reproducing/recording/transmitting method and apparatus and signal recording medium Feb. 10, 2004
6684334 Secure establishment of cryptographic keys using persistent key component Jan. 27, 2004
6678683 Document management system using an access-limited character train and password, and a method and computer-readable medium therefor Jan. 13, 2004
6675299 Method and apparatus for document management utilizing a messaging system Jan. 6, 2004
6668325 Obfuscation techniques for enhancing software security Dec. 23, 2003
6658571 Security framework for dynamically wrapping software applications executing in a computing system Dec. 2, 2003
6643775 Use of code obfuscation to inhibit generation of non-use-restricted versions of copy protected software applications Nov. 4, 2003
6640306 Data transmitter, data reproduction method, terminal, and method for transferring data transmitter Oct. 28, 2003
6633983 Apparatus and method for automatically storing first use date of an electronic device Oct. 14, 2003
6625732 Method for tracking the devices used to load, read, and write removable storage media Sep. 23, 2003
6601172 Transmitting revisions with digital signatures Jul. 29, 2003
6578149 METHOD FOR REPRODUCING DATA, APPARATUS FOR REPRODUCING DATA, METHOD FOR CODING DATA, METHOD FOR RECORDING DATA, APPARATUS FOR RECORDING AND REPRODUCING DATA, METHOD FOR AUTHENTICATION, SEMICON Jun. 10, 2003
6549624 Apparatus and method for enhancing the security of negotiable documents Apr. 15, 2003
6539430 System and method for filtering data received by a computer system Mar. 25, 2003
6535981 Information processing system Mar. 18, 2003
6530023 Method and device that validates time of an internal source using an external source Mar. 4, 2003
6526488 Computer systems Feb. 25, 2003
6526511 Apparatus and method for modifying microprocessor system at random and maintaining equivalent functionality in spite of modification, and the same microprocessor system Feb. 25, 2003
6522685 Information signal processing unit Feb. 18, 2003
6523056 Process for secure comparison of two storage registers, and security module implementing this process Feb. 18, 2003
6519702 Method and apparatus for limiting security attacks via data copied into computer memory Feb. 11, 2003
6487665 Object security boundaries Nov. 26, 2002
6477431 Watermark detection Nov. 5, 2002
6477530 Digital data recording and reproducing system Nov. 5, 2002
6477650 Data protecting system and method for protecting data Nov. 5, 2002
6477652 Cryptographic checksum apparatus Nov. 5, 2002
6473859 Image processing apparatus, method, and system, and computer-readable storage medium having program stored therein Oct. 29, 2002
6467005 System for connecting drive unit for host apparatus Oct. 15, 2002
6453305 Method and system for enforcing licenses on an open network Sep. 17, 2002
6453420 System, method and article of manufacture for authorizing the use of electronic content utilizing a laser-centric medium Sep. 17, 2002
6449367 Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels Sep. 10, 2002
6449621 Privacy data escrow system and method Sep. 10, 2002

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