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1. 发明申请

US20210084387A1 Device and Method for GPU-based Watermarking 有权
公开(公告)号：US20210084387A1
公开(公告)日：2021-03-18
申请号：US17063795
申请日：2020-10-06
申请人： Irdeto B.V.
发明人： Martin Soukup , Daniel Murdock
IPC分类号： H04N21/8358 , G06F21/16 , G06T1/00 , G06F8/60 , G06F21/14 , G06T15/00 , H04L29/06 , H04N21/239 , H04N21/258
摘要： A method and system for watermarking content utilizing a user device GPU. Embodiments include receiving on a processing server a request from a video server for a video to be played on the user's device. The processing server may extract a set of identifying information, such as user information, from the request for the video. The processing server may further prepare shader software code which is to be executed on a GPU present on the user's device. The code preparation may include creating a watermarking procedure to be executed during playback on the user device. The processing server may further transmit the shader software code to the streaming video server to be transmitted to the user device for execution during video playback.

2. 发明授权

US10303857B2 Providing access to content 有权
公开(公告)号：US10303857B2
公开(公告)日：2019-05-28
申请号：US15519177
申请日：2015-10-15
申请人： Irdeto B.V.
发明人： Arnoud Evert Van Foreest , Martin Soukup
IPC分类号： G06F21/10 , H04L9/00
摘要： A method of providing access to content at a first device, the method comprising: receiving an item of content, wherein at least part of the item of content is encrypted, the encrypted at least part of the item of content being decryptable using at least one decryption key; in a first software client: obtaining a transformed version of the at least one decryption key; performing a decryption operation on the encrypted at least part of the item of content based on the at least one decryption key to obtain an intermediate version of the at least part of the item of content, wherein said performing the decryption operation uses a white-box implementation of the decryption operation that forms part of the first software client and that operates using the transformed version of the at least one decryption key; and performing an encryption operation on at least a portion of the intermediate version based on at least one encryption key to obtain re-encrypted content, wherein said performing the encryption operation uses a white-box implementation of the encryption operation that forms part of the first software client; and providing, to a digital rights management client that executes on the first device, (a) a rights object that enables the digital rights management client to obtain one or more second decryption keys corresponding to the at least one encryption key, the one or more second decryption keys enabling the digital rights management client to decrypt the re-encrypted content and (b) the re-encrypted content.

3. 发明公开

US20230367704A1 FUZZY TESTING A SOFTWARE SYSTEM 审中-公开
公开(公告)号：US20230367704A1
公开(公告)日：2023-11-16
申请号：US18144949
申请日：2023-05-09
申请人： Irdeto B.V.
发明人： Martin Soukup , Daniel Murdock , Lama Moukahal , Mohammad Zulkernine
IPC分类号： G06F11/36
CPC分类号： G06F11/3688 , G06F11/3644 , G06F11/3692
摘要： A method for a testing system to perform fuzzy testing of a software system, wherein the software system comprises a plurality of callable units and is arranged to receive input for the software system to process, the method comprising: determining, for each callable unit of the plurality of callable units, based on one or more security vulnerability metrics, a target number of times that callable unit is to be tested; initializing a ranked plurality of queues, each queue for storing one or more seeds, said initializing comprising storing one or more initial seeds in a corresponding queue of the ranked plurality of queues; performing a sequence of tests, wherein performing each test comprises: obtaining a seed from the highest ranked non-empty queue; performing a mutation process on the obtained seed to generate a test seed, wherein the mutation process is configured, at least in part, by mutation guidance information; providing the test seed as input to the software system for the software system to process; and evaluating the processing of the test seed by the software system to generate a result for the test; wherein each queue in the ranked plurality of queues has an associated seed addition criterion and wherein performing each test comprises either (a) adding the test seed to the highest ranked queue in the ranked plurality of queues for which the test seed meets the seed addition criterion associated with that queue; or (b) discarding the test seed if the test seed does not meet the seed addition criterion associated with any of the queues in the ranked plurality of queues; wherein the seed addition criteria are configured so that, if processing of a first test seed by the software system involves execution of, or an execution path approaching, a callable unit of interest and if processing of a second test seed by the software system does not involve execution of, or an execution path approaching, a callable unit of interest, then the queue to which the first test seed is added is of higher rank than the queue to which the second test seed is added, wherein a callable unit is a callable unit of interest if the current number of tests that have resulted in execution of that callable unit is less than the target number of times that callable unit is to be tested.

4. 发明申请

US20170237551A1 PROVIDING ACCESS TO CONTENT 审中-公开
公开(公告)号：US20170237551A1
公开(公告)日：2017-08-17
申请号：US15519177
申请日：2015-10-15
申请人： Irdeto B.V.
发明人： Arnoud Evert Van Foreest , Martin Soukup
IPC分类号： H04L9/00
CPC分类号： H04L9/002 , H04L2209/16 , H04L2209/603
摘要： A method of providing access to content at a first device, the method comprising: receiving an item of content, wherein at least part of the item of content is encrypted, the encrypted at least part of the item of content being decryptable using at least one decryption key; in a first software client: obtaining a transformed version of the at least one decryption key; performing a decryption operation on the encrypted at least part of the item of content based on the at least one decryption key to obtain an intermediate version of the at least part of the item of content, wherein said performing the decryption operation uses a white-box implementation of the decryption operation that forms part of the first software client and that operates using the transformed version of the at least one decryption key; and performing an encryption operation on at least a portion of the intermediate version based on at least one encryption key to obtain re-encrypted content, wherein said performing the encryption operation uses a white-box implementation of the encryption operation that forms part of the first software client; and providing, to a digital rights management client that executes on the first device, (a) a rights object that enables the digital rights management client to obtain one or more second decryption keys corresponding to the at least one encryption key, the one or more second decryption keys enabling the digital rights management client to decrypt the re-encrypted content and (b) the re-encrypted content.

5. 发明申请

US20190141414A1 Device and Method for GPU-based Watermarking 审中-公开
公开(公告)号：US20190141414A1
公开(公告)日：2019-05-09
申请号：US16129486
申请日：2018-09-12
申请人： Irdeto B.V.
发明人： Grant Goodes , Martin Soukup , Daniel Murdock
IPC分类号： H04N21/8358 , G06F8/60 , G06F21/16 , G06F21/14 , H04L29/06 , H04N21/239 , H04N21/258 , G06T15/00
摘要： A method and system for watermarking content utilizing a user device GPU. Embodiments include receiving on a processing server a request from a video server for a video to be played on the user's device. The processing server may extract a set of identifying information, such as user information, from the request for the video. The processing server may further prepare shader software code which is to be executed on a GPU present on the user's device. The code preparation may include creating a watermarking procedure to be executed during playback on the user device. The processing server may further transmit the shader software code to the streaming video server to be transmitted to the user device for execution during video playback.

6. 发明申请

US20160057380A1 PROCESSING DIGITAL CONTENT 审中-公开
标题翻译：处理数字内容
公开(公告)号：US20160057380A1
公开(公告)日：2016-02-25
申请号：US14431768
申请日：2013-03-28
申请人： IRDETO B.V.
发明人： Annie Liu , Catherine Chambers , Luc Martel , Martin Soukup
IPC分类号： H04N5/913 , H04N19/44 , H04N19/88
CPC分类号： H04N5/913 , H04N19/44 , H04N19/88 , H04N21/2347 , H04N21/4405 , H04N2005/91357 , H04N2005/91364
摘要： There are described methods and apparatus for scrambling digital content, such as video or audio content, by dividing the digital content into blocks set out in an original arrangement, and reordering the blocks from the original arrangement to a scrambled arrangement. Additional manipulation transforms such as rotations and reflections may be applied to individual blocks. A subsequent compression step may then be carried out. Methods and apparatus for carrying out corresponding descrambling of digital content are also described.
摘要翻译：已经描述了通过将数字内容划分成原始布置的块并且将块从原始布置重新排序到加扰布置来对数字内容（例如视频或音频内容）进行加扰的方法和装置。附加的操纵变换，例如旋转和反射可以应用于各个块。然后可以执行随后的压缩步骤。还描述了用于执行数字内容的相应解扰的方法和装置。

7. 发明授权

US10805693B2 Device and method for GPU-based watermarking 有权
公开(公告)号：US10805693B2
公开(公告)日：2020-10-13
申请号：US16129486
申请日：2018-09-12
申请人： Irdeto B.V.
发明人： Martin Soukup , Daniel Murdock
IPC分类号： H04N7/167 , H04N21/8358 , G06F21/16 , G06T1/00 , G06F8/60 , G06F21/14 , G06T15/00 , H04L29/06 , H04N21/239 , H04N21/258
摘要： A method and system for watermarking content utilizing a user device GPU. Embodiments include receiving on a processing server a request from a video server for a video to be played on the user's device. The processing server may extract a set of identifying information, such as user information, from the request for the video. The processing server may further prepare shader software code which is to be executed on a GPU present on the user's device. The code preparation may include creating a watermarking procedure to be executed during playback on the user device. The processing server may further transmit the shader software code to the streaming video server to be transmitted to the user device for execution during video playback.

8. 发明授权

US10212387B2 Processing digital content 有权
公开(公告)号：US10212387B2
公开(公告)日：2019-02-19
申请号：US14431768
申请日：2013-03-28
申请人： IRDETO B.V.
发明人： Annie Liu , Catherine Chambers , Luc Martel , Martin Soukup
IPC分类号： H04N5/913 , H04N19/88 , H04N21/2347 , H04N21/4405 , H04N19/44
摘要： There are described methods and apparatus for scrambling digital content, such as video or audio content, by dividing the digital content into blocks set out in an original arrangement, and reordering the blocks from the original arrangement to a scrambled arrangement. Additional manipulation transforms such as rotations and reflections may be applied to individual blocks. A subsequent compression step may then be carried out. Methods and apparatus for carrying out corresponding descrambling of digital content are also described.

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