ClassID:

227290

H04L2209/606 - CPC Classification

Classification description:

Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication; Digital content management, e.g. content distribution Traitor tracing

Recent Application in this class:
#1
20200382287
2020-12-03

Privacy-preserving leakage-deterring public-key encryption from attribute-based encryptions

#2
20190104118
2019-04-04

Space-time separated and jointly evolving relationship-based network access and data protection system

#3
20180144434
2018-05-24

Model anti-collusion watermark

#4
20170317822
2017-11-02

Unified broadcast encryption system

#5
20170286647
2017-10-05

Watermarking input and output of a white-box implementation

#6
20170063558
2017-03-02

Renewable traitor tracing

#7
20160182486
2016-06-23

Space-time separated and jointly evolving relationship-based network access and data protection system

#8
20160182230
2016-06-23

Secure token-based signature schemes using look-up tables

#9
20160164675
2016-06-09

Countering server-based attacks on encrypted content

#10
20150229470
2015-08-13

Countering server-based attacks on encrypted content

#11
20150033026
2015-01-29

Dynamic tardos traitor tracing schemes

#12
20140334624
2014-11-13

Simplified management of group secrets by group members

#13
20140270168
2014-09-18

Forensics in multi-channel media content

#14
20130212374
2013-08-15

Method for identifying a device used by a hacked terminal, and related device

#15
20120224692
2012-09-06

Method for public-key attribute-based encryption with respect to a conjunctive logical expression

#16
20120163654
2012-06-28

Method and system for tracking illegal distributor and preventing illegal content distribution

#17
20120060223
2012-03-08

Traitor tracing in a content protection system

#18
20120047103
2012-02-23

System and method for secure information sharing with untrusted recipients

#19
20120036578
2012-02-09

Tracing traitor coalitions and preventing piracy of digital content in a broadcast encryption system

#20
20110293091
2011-12-01

Method and apparatus for decrypting encrypted content

#21
20110264923
2011-10-27

Method and system for secure access to non-volatile memory

#22
20110261997
2011-10-27

Forensic mark insertion apparatus and method

#23
20110173340
2011-07-14

Computerized, copy detection and discrimination apparatus and method

#24
20110116630
2011-05-19

Traceable method and system for broadcasting digital data

#25
20100329454
2010-12-30

Encryption parameter setting apparatus, key generation apparatus, cryptographic system, program, encryption parameter setting method, and key generation method

#26
20100299515
2010-11-25

Method and system for tracking or identifying copy of implementation of computational method, and computation system

#27
20100287614
2010-11-11

Decoding method for a probabilistic anti-collusion code comprising the selection of the collusion strategy

#28
20100284530
2010-11-11

Method for decoding a probabilistic anti-collusion code

#29
20100183148
2010-07-22

Recording keys in a broadcast-encryption-based system

#30
20100172498
2010-07-08

Secure presentation of media streams in response to encrypted content

#31
20100043081
2010-02-18

Detecting and revoking pirate redistribution of content

#32
20100040231
2010-02-18

Security classes in a media key block

#33
20090327717
2009-12-31

System, method, and service for tracing traitors from content protection circumvention devices

#34
20090323949
2009-12-31

Method of transmitting an additional piece of data to a reception terminal

#35
20090323936
2009-12-31

System, method, and service for performing unified broadcast encryption and traitor tracing for digital content

#36
20090320130
2009-12-24

Traitor detection for multilevel assignment

#37
20090319227
2009-12-24

Adaptive traitor tracing

#38
20090214031
2009-08-27

Unified broadcast encryption system

#39
20090214029
2009-08-27

Unified broadcast encryption system

#40
20090185686
2009-07-23

Method to trace traceable parts of original private keys in a public-key cryptosystem

#41
20090185676
2009-07-23

Method to generate a private key in a boneh-franklin scheme

#42
20090049560
2009-02-19

System and method for tracing tardos fingerprint codes

#43
20090049558
2009-02-19

System and method for tracing Tardos fingerprint codes

#44
20080288653
2008-11-20

Computerized, copy-detection and discrimination apparatus and method

#45
20080279376
2008-11-13

System, method, and service for performing unified broadcast encryption and traitor tracing for digital content

#46
20080192939
2008-08-14

Method for broadcast encryption and key revocation of stateless receivers

#47
20080137864
2008-06-12

System, method, and service for tracing traitors from content protection circumvention devices

#48
20080133938
2008-06-05

Self-protecting digital content

#49
20080101604
2008-05-01

Self-protecting digital content

#50
20080075287
2008-03-27

Method and apparatus for tracing the source of decryption keys used by a decoder

#51
20070174637
2007-07-26

System and method for assigning sequence keys to a media player to enable flexible traitor tracing

#52
20070165853
2007-07-19

Tracing traitor coalitions and preventing piracy of digital content in a broadcast encryption system

#53
20070067244
2007-03-22

Renewable traitor tracing

#54
20070067242
2007-03-22

System and method for assigning sequence keys to a media player to enable hybrid traitor tracing

#55
20060153377
2006-07-13

Traceable method and system for encrypting and/or decrypting data, and recording media for implementing the method

#56
20060129805
2006-06-15

Method of managing user key for broadcast encryption

#57
20050278257
2005-12-15

Content security system for screening applications

#58
20050273862
2005-12-08

Methods and systems of protecting digital content

#59
20050254644
2005-11-17

Anti-pirate method for the distribution of digital content by pro-active diversified transmission, associated transmitting device and portable receiving object

#60
20050195980
2005-09-08

Method for broadcast encryption and key revocation of stateless receivers