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1. 发明申请

WO2009034504A3 CRYPTOGRAPHIC PROCESSING OF CONTENT 审中-公开
标题翻译：内容的图形处理
公开(公告)号：WO2009034504A3
公开(公告)日：2009-06-04
申请号：PCT/IB2008053588
申请日：2008-09-04
申请人： KONINKL PHILIPS ELECTRONICS NV , KATZENBEISSER STEFAN , MICHIELS WILHELMUS P A J , GORISSEN PAULUS M H M A , LEMMA AWEKE N , CELIK MEHMET U
发明人： KATZENBEISSER STEFAN , MICHIELS WILHELMUS P A J , GORISSEN PAULUS M H M A , LEMMA AWEKE N , CELIK MEHMET U
IPC分类号： H04L9/32
CPC分类号： G06F21/10 , G06F2221/0733 , H04L9/002 , H04L9/0618 , H04L2209/16
摘要： A system (500) for cryptographic processing of content comprises an input (502) for receiving the content (566). A plurality of look-up tables (504) represents a white- box implementation of a combined cryptographic and watermarking operation (460). The look-up tables represent processing steps of the combined cryptographic and watermarking operation and the look-up tables being arranged for being applied according to a predetermined look-up scheme. The look-up scheme prescribes that an output of a first look¬ up table of the plurality of look-up tables be used to generate an input of a second look-up table of the plurality of look-up tables. The combined cryptographic and watermarking operation comprises a cryptographic operation and a watermarking operation. A control module (512) looks up values in the plurality of look-up tables in dependence on the received content and in accordance to the look-up scheme, thereby applying the combined cryptographic and watermarking operation to the content.
摘要翻译：用于内容的密码处理的系统（500）包括用于接收内容的输入（502）（566）。多个查找表（504）表示组合密码和水印操作的白盒实现（460）。查找表表示组合的加密和水印操作的处理步骤，并且查找表被布置为根据预定的查找方案应用。查找方案规定，使用多个查找表中的第一查找表的输出来生成多个查找表中的第二查找表的输入。组合的加密和水印操作包括密码操作和水印操作。控制模块（512）根据所接收的内容并根据查找方案查找多个查找表中的值，从而将该组合的加密和水印操作应用于内容。

2. 发明申请

WO2009027902A3 APPARATUS AND METHODS FOR TRANSFERRING EDITABLE DIGITAL CONTENT 审中-公开
标题翻译：用于传输可编辑数字内容的装置和方法
公开(公告)号：WO2009027902A3
公开(公告)日：2009-04-30
申请号：PCT/IB2008053351
申请日：2008-08-21
申请人： KONINKL PHILIPS ELECTRONICS NV , LEMMA AWEKE N , VAN DER VEEN MINNE , CELIK MEHMET U , KATZENBEISSER STEFAN
发明人： LEMMA AWEKE N , VAN DER VEEN MINNE , CELIK MEHMET U , KATZENBEISSER STEFAN
IPC分类号： H04L29/06
CPC分类号： H04L63/0428 , G06F21/10 , G06F2221/0724 , G06T1/0071 , G06T2201/0064 , H04N7/162 , H04N21/23892 , H04N21/4627 , H04N21/63345 , H04N21/8358 , H04N21/854
摘要： The present invention relates to methods and apparatus for transfer of editable digital content. A first entity (60) stores content data (C1 ') comprising digital content embedded with a first watermark (W1 '). The first entity transmits structure data (S(c1 ')) to a transfer control entity (50), the structure data being indicative of the structure of at least a portion of the content data. The transfer control entity selects a transmission key (k1) in dependence upon the structure data, and transmits the transmission key to the first entity. The first entity applies the transmission key to the content data to remove the first watermark from the digital content and encrypt the digital content. The first entity transmits the encrypted digital content (E(c1 ')) to a second entity (70). The transfer control entity transmits a receive key (k2) to the second entity. The second entity applies the receive key to the encrypted digital content to generate decrypted data (c2) comprising the decrypted digital content embedded with a second watermark (w2).
摘要翻译：本发明涉及用于传输可编辑数字内容的方法和装置。第一实体（60）存储包含嵌入有第一水印（W1'）的数字内容的内容数据（C1'）。第一实体将结构数据（S（c1'））发送到传送控制实体（50），结构数据指示内容数据的至少一部分的结构。传输控制实体根据结构数据选择传输密钥（k1），并将传输密钥发送给第一实体。第一实体将传输密钥应用于内容数据，以从数字内容中移除第一水印并加密数字内容。第一实体将加密的数字内容（E（c1'））发送到第二实体（70）。传送控制实体向第二实体发送接收密钥（k2）。第二实体将接收密钥应用于加密的数字内容，以产生包含用第二水印（w2）嵌入的解密的数字内容的解密数据（c2）。

3. 发明申请

WO2009007876A3 WARERMARKING AND ENCRYPTION OF ENTROPY-CODED DATA USING ADDITIVE HUFFMAN TABLE 审中-公开
标题翻译：使用添加剂HUFFMAN表加密和加密熵编码数据
公开(公告)号：WO2009007876A3
公开(公告)日：2009-03-05
申请号：PCT/IB2008052641
申请日：2008-07-01
申请人： KONINKL PHILIPS ELECTRONICS NV , LEMMA AWEKE N , CELIK MEHMET U , VAN DER VEEN MINNE , KATZENBEISSER STEFAN
发明人： LEMMA AWEKE N , CELIK MEHMET U , VAN DER VEEN MINNE , KATZENBEISSER STEFAN
IPC分类号： H04N7/26
CPC分类号： G06T1/0035 , G06T2201/0052 , G06T2201/0053 , H04N7/1675 , H04N19/13 , H04N19/467 , H04N19/48 , H04N21/2347 , H04N21/4405 , H04N21/8358
摘要： A secure forensic watermarking system is disclosed that distributes the same encrypted content to all users. The decryption key is different for each user, so that the decrypted content differs slightly from the original, i.e. is watermarked. Forensic tracking is possible by distributing unique decryption keys to individual users. The invention allows a forensic mark to be securely embedded in the compressed domain signal. In an embodiment of this invention, the content (x) and an encryption sequence (r) are entropy encoded using a homomorphic Huffman table. A homomorphic Huffmann table is a table H having the property that there exists an operation f() such that H-1 ( f (H(a),H(b))) = a + b.
摘要翻译：公开了一种安全的法医水印系统，其将相同的加密内容分发给所有用户。解密密钥对于每个用户是不同的，使得解密的内容与原始内容略有不同，即被加密。通过向个别用户分发唯一的解密密钥可以进行取证跟踪。本发明允许将法医标记安全地嵌入到压缩域信号中。在本发明的一个实施例中，内容（x）和加密序列（r）使用同态霍夫曼表进行熵编码。同形霍夫曼表是具有存在使得H-1（f（H（a），H（b）））= a + b的操作f（）的性质的表H。

4. 发明申请

WO2008084457A3 VIDEO WATERMARKING 审中-公开
标题翻译：视频水印
公开(公告)号：WO2008084457A3
公开(公告)日：2008-08-28
申请号：PCT/IB2008050095
申请日：2008-01-11
申请人： KONINKL PHILIPS ELECTRONICS NV , CELIK MEHMET U , TALSTRA JOHAN C , LEMMA AWEKE N
发明人： CELIK MEHMET U , TALSTRA JOHAN C , LEMMA AWEKE N
IPC分类号： G06T1/00
CPC分类号： H04N19/467 , G06K9/00744 , G06T1/0028 , G06T1/0085 , G06T2201/0052
摘要： A method of watermarking a video signal comprises encoding the video signal using a plurality of encoding parameters and, during said encoding, varying a value of at least a selected one of said parameters with time according to a watermarking pattern, the selected parameter being a parameter that affects at least a type or an amount of information lost in encoding the signal. An example of a suitable parameter is a quantization factor used to encode the video signal. The quantization factor may correspond to a particular coefficient of a transform used to encode the video signal, and may, for example, be an element of a quantization matrix corresponding to a particular coefficient in a block DCT transform. The method may conveniently be implemented in devices with limited processing resources, such as existing DVRs, by means of a software update, yet enables those devices to imprint a signal they encode with a robust watermark which may survive subsequent decompression and recompression. In another aspect, a video signal is watermarked by modifying a magnitude of at least one selected non-dc spatial frequency component in a manner which varies with time according to a watermarking pattern. Corresponding watermark detection methods and watermarking devices are disclosed.
摘要翻译：一种对视频信号进行加水印的方法包括使用多个编码参数对视频信号进行编码，并且在所述编码期间，根据水印模式随时间改变所述参数中的至少一个所选参数的值，所选择的参数是参数这至少影响在编码信号时丢失的信息的类型或数量。合适参数的示例是用于对视频信号进行编码的量化因子。量化因子可以对应于用于编码视频信号的变换的特定系数，并且可以例如是与块DCT变换中的特定系数相对应的量化矩阵的元素。该方法可以方便地在具有有限处理资源的设备（例如现有的DVR）中通过软件更新来实现，但是使得这些设备能够利用可能在随后的解压缩和重新压缩中存活的鲁棒水印来印记他们编码的信号。在另一方面，通过根据水印模式以随时间变化的方式修改至少一个选定的非直流空间频率分量的大小来对视频信号进行水印。公开了相应的水印检测方法和水印设备。

5. 发明申请

WO2008072132A2 EXTRACTING AUXILIARY DATA FROM A HOST SIGNAL 审中-公开
标题翻译：从主机信号提取辅助数据
公开(公告)号：WO2008072132A2
公开(公告)日：2008-06-19
申请号：PCT/IB2007054926
申请日：2007-12-05
申请人： KONINKL PHILIPS ELECTRONICS NV , CELIK MEHMET U , LEMMA AWEKE N , HAITSMA JAAP A
发明人： CELIK MEHMET U , LEMMA AWEKE N , HAITSMA JAAP A
IPC分类号： G06T1/00 , A63H30/04 , G10L19/00 , G10L19/018 , G11B20/00 , H04N1/32 , H04N7/26
CPC分类号： G10L19/018 , A63H3/36 , A63H30/04 , A63H2200/00
摘要： The invention relates to extracting and embedding auxiliary data from and to a host signal. In an embodiment, the auxiliary data relates to remotely control of an application or a device, such as an interactive toy. Auxiliary data are extracted from a host signal, by periodically (32A-32C) with a predetermined first period search a first section (33A-33C) of the host signal for a first watermark (34); and upon detection of the first watermark, search the host signal for a second watermark (35). In embodiments, may information relating to timing and type of action to be performed by a remotely controlled device be conveyed by the watermarks.
摘要翻译：本发明涉及从主机信号提取和嵌入辅助数据。在一个实施例中，辅助数据涉及应用或设备（例如交互式玩具）的远程控制。通过在第一水印（34）的主机信号的第一部分（33A-33C）中预定的第一周期周期性地（32A-32C）从主机信号中提取辅助数据; 并且在检测到第一水印时，搜索主机信号以获得第二水印（35）。在实施例中，可以由水印传达与由遥控设备执行的动作的定时和类型相关的信息。

6. 发明申请

WO2007057813A2 PERPETUAL MASKING FOR SECURE WATERMARK EMBEDDING 审中-公开
标题翻译： PERPETUAL MASKING安全水印嵌入
公开(公告)号：WO2007057813A2
公开(公告)日：2007-05-24
申请号：PCT/IB2006054117
申请日：2006-11-06
申请人： KONINKL PHILIPS ELECTRONICS NV , CELIK MEHMET U , LEMMA AWEKE N , VAN DER VEEN MINNE
发明人： CELIK MEHMET U , LEMMA AWEKE N , VAN DER VEEN MINNE
CPC分类号： G06T1/0028 , G06T2201/0083 , G06T2201/0202
摘要： Disclosed are a method and a system for secure watermark embedding in a server-client configuration (60,70). The method comprises encrypting (210) the data signal (x) and generating (240) a decryption key wherein a watermark (W i ) is included. The client decrypts (420) the encrypted data signal in order to obtain a watermarked data signal (x w ). In accordance with the invention, the encryption mechanism and decryption key are made dependent on a perceptual mask (m 1 ,m 2 ) so as eventually make the embedded watermark more robust.
摘要翻译：公开了用于在服务器 - 客户端配置中安全水印嵌入的方法和系统（60,70）。该方法包括加密（210）数据信号（x）并产生（240）解密密钥，其中包括水印（W i> i ）。客户端解密（420）加密的数据信号以便获得加水印的数据信号（x w ）。根据本发明，加密机制和解密密钥依赖于感知掩码（m _{1，m _{2 ），从而最终使得嵌入的水印更加健壮。}}

7. 发明申请

WO2008122918A2 SECURE CLIENT-SIDE EMBEDDING USING MULTIPLE ONE-TIME-PADS 审中-公开
标题翻译：使用多个一次性安全的安全的客户端嵌入
公开(公告)号：WO2008122918A2
公开(公告)日：2008-10-16
申请号：PCT/IB2008051209
申请日：2008-04-01
申请人： KONINKL PHILIPS ELECTRONICS NV , CELIK MEHMET U , LEMMA AWEKE N , VAN DER VEEN MINNE
发明人： CELIK MEHMET U , LEMMA AWEKE N , VAN DER VEEN MINNE
CPC分类号： H04L63/0457 , G11B20/00086 , G11B20/0021 , G11B20/00884 , G11B2220/2545 , G11B2220/2562 , H04L9/0656 , H04L63/067 , H04L2209/608 , H04L2463/061 , H04L2463/103
摘要： The present invention relates to a method and a unit for securely providing watermarking data for watermarking a content. Watermarking data consists of cipher texts that are generated based on the content, a watermark and a number of encryption parameters. The invention also provides a method and a unit for securely watermarking a content at an untrusted location, such as at the location of a content consumer. The watermarking unit receives a number of cipher texts provided for instance by a watermarking data unit in accordance with the invention, and calculates the watermarked signal based on the cipher texts.
摘要翻译：本发明涉及一种用于安全地提供用于对内容进行水印处理的水印数据的方法和单元。水印数据由基于内容生成的密码，水印和多个加密参数组成。本发明还提供了一种用于在诸如在内容消费者的位置处的不信任位置处安全地水印内容的方法和单元。水印单元接收根据本发明的例如由水印数据单元提供的多个密文，并且基于密文来计算加水印的信号。

8. 发明申请

WO2007086029A3 SEARCH FOR A WATERMARK IN A DATA SIGNAL 审中-公开
标题翻译：在数据信号中搜索水印
公开(公告)号：WO2007086029A3
公开(公告)日：2007-11-01
申请号：PCT/IB2007050285
申请日：2007-01-29
申请人： KONINKL PHILIPS ELECTRONICS NV , CELIK MEHMET U , LEMMA AWEKE N , VAN DER VEEN MINNE
发明人： CELIK MEHMET U , LEMMA AWEKE N , VAN DER VEEN MINNE
IPC分类号： G06T1/00
CPC分类号： G06T1/005 , G06T2201/0065
摘要： The invention relates to a method of searching for a watermark in a data signal, and to a watermark detector, such as a copy-control watermark detector. The search is conducted in order to find a watermark in content which possibly has been attacked and/or altered. The search is conducted by the steps of determining or setting a search space for the data signal, selecting a subspace of the search space, and searching for the presence of the watermark in the subspace. The subspace may be selected from a multitude of regions, the selection e.g. being based on a deterministic or probabilistic function.
摘要翻译：本发明涉及一种在数据信号中搜索水印的方法，以及一种水印检测器，例如复制控制水印检测器。进行搜索是为了在可能已被攻击和/或改变的内容中找到水印。通过确定或设置数据信号的搜索空间，选择搜索空间的子空间以及在子空间中搜索水印的存在的步骤来进行搜索。子空间可以从多个区域中选择，例如选择。基于确定性或概率性函数。

9. 发明申请

WO2009107049A3 CONTENT IDENTIFICATION METHOD 审中-公开
标题翻译：内容识别方法
公开(公告)号：WO2009107049A3
公开(公告)日：2009-12-10
申请号：PCT/IB2009050698
申请日：2009-02-20
申请人： KONINKL PHILIPS ELECTRONICS NV , DAMSTRA MARIJN C , CELIK MEHMET U
发明人： DAMSTRA MARIJN C , CELIK MEHMET U
IPC分类号： G06F17/30
CPC分类号： G06F17/30041 , G06F17/30784 , G10L19/018 , G11B20/00123 , G11B2020/10546
摘要： Disclosed is a method for identifying content within a received information signal. The method comprises receiving (S6) an information signal; generating (S8) a first data set by selecting a sub-set of data (7) using filter data; and processing (S9) said information signal with reference to said first data set to determine whether said information signal comprises particular content. Advantageously, the method further comprises processing (S 12) the information signal with reference to a second data set (6) to determine whether said information signal comprises particular content. The invention allows content sharing sites such as YouTube to check whether uploaded files violate copyright rules in case the upload includes contents that was previously downloaded by the client. By keeping a list of contents that clients have downloaded, the server has an indication of a subset of contents that will likely be included in the next upload by the same client. As this subset is relatively small, a finer fingerprint resolution may be applied to this subset.
摘要翻译：公开了一种用于识别接收到的信息信号内的内容的方法。该方法包括接收（S6）信息信号; 通过使用滤波器数据选择数据（7）的子集来生成（S8）第一数据集; 以及参照所述第一数据集处理（S9）所述信息信号以确定所述信息信号是否包括特定内容。有利地，该方法还包括参照第二数据集（6）处理（S12）该信息信号以确定所述信息信号是否包括特定内容。本发明允许诸如YouTube的内容共享站点检查上传的文件是否违反版权规则，以防上传包括先前由客户端下载的内容。通过保留客户端下载的内容列表，服务器会指示可能包含在同一客户端的下一次上传中的内容子集。由于该子集相对较小，因此可以将更精细的指纹分辨率应用于该子集。

10. 发明申请

WO2008001327A3 METHOD AND APPARATUS FOR ENCRYPTING/DECRYPTING DATA 审中-公开
标题翻译：用于加密/解密数据的方法和设备
公开(公告)号：WO2008001327A3
公开(公告)日：2008-02-21
申请号：PCT/IB2007052530
申请日：2007-06-29
申请人： KONINKL PHILIPS ELECTRONICS NV , CELIK MEHMET U , SKORIC BORIS , TUYLS PIM T
发明人： CELIK MEHMET U , SKORIC BORIS , TUYLS PIM T
IPC分类号： H04L9/08
CPC分类号： H04L9/085 , H04L9/0861 , H04L63/0478 , H04L2209/60
摘要： The present invention relates to a method and apparatus for encrypting data (105) by means of a first key (115), and a method and apparatus for decrypting encrypted data by means of a second key (185). The present invention alleviates the need for exact key information by allowing encryption of data (105) by means of a first key (115) and subsequent decryption of the encrypted data by means of a second key (185) without the need for the first key (115), provided that the first key (115) and the second key (185) form a sufficient estimate of an encryption/decryption key pair. During encryption, multiple encryption keys (135), at least in part based on the first key (115), are used to encrypt a redundant representation (122) of the data (105). The encrypted data (124) may subsequently be decrypted by using multiple decryption keys (165) based on the second key (185), without the need for the first key (115), provided that the second key (185) forms a sufficient estimate of the first key (115).
摘要翻译：本发明涉及借助于第一密钥（115）对数据（105）进行加密的方法和装置，以及用于通过第二密钥（185）对加密数据进行解密的方法和装置。本发明通过允许通过第一密钥（115）加密数据（105）并且随后通过第二密钥（185）对加密数据进行解密而不需要第一密钥（185）来缓解对确切密钥信息的需要（115），只要第一密钥（115）和第二密钥（185）形成加密/解密密钥对的充分估计。在加密期间，至少部分基于第一密钥（115）的多个加密密钥（135）被用于加密数据（105）的冗余表示（122）。如果第二密钥（185）形成足够的估计值（125），则加密数据（124）可随后基于第二密钥（185）通过使用多个解密密钥（165）解密，而不需要第一密钥（115）的第一键。

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