专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2013001426A1 DISTRIBUTING AUDIO VIDEO CONTENT 审中-公开
标题翻译：分发音频视频内容
公开(公告)号：WO2013001426A1
公开(公告)日：2013-01-03
申请号：PCT/IB2012/053150
申请日：2012-06-21
申请人： NDS LIMITED , EPSTEIN, Steve , SOLOW, Hillel , SELLA, Yaron , KIPNIS, Aviad , POUPKO, Avraham
发明人： EPSTEIN, Steve , SOLOW, Hillel , SELLA, Yaron , KIPNIS, Aviad , POUPKO, Avraham
IPC分类号： H04N21/8543 , H04N21/854 , H04N21/2343 , H04N21/643 , H04N21/258 , H04L29/06
CPC分类号： H04N21/2343 , H04L65/4076 , H04L65/80 , H04N21/23439 , H04N21/25825 , H04N21/25858 , H04N21/643 , H04N21/85406 , H04N21/8543
摘要： A method of distributing audio video content is described. The method includes: receiving configuration data for a plurality of devices; for each device in the plurality of devices, computing a set of bit rates based, at least in part, on the configuration data; encoding audio video content at each bit rate in each set of bit rates to produce a plurality of encoded audio video content streams; splitting each encoded audio video content stream in the plurality of encoded audio video content streams into chunks to produce a plurality of chunked encoded audio video content streams; for each device in the plurality of devices, creating a separate index file, each separate index file including references to at least one of the plurality of chunked encoded audio video content streams; publishing a locator for each separate index file in a catalogue; and transmitting the plurality of chunked encoded audio video content streams and each separate index file to a network. Related systems, apparatus, and methods are also described.
摘要翻译：描述了分发音频视频内容的方法。该方法包括：接收多个设备的配置数据; 对于所述多个设备中的每个设备，至少部分地基于所述配置数据来计算一组比特率; 以每组比特率中的每个比特率对音频视频内容进行编码，以产生多个经编码的音频视频内容流; 将所述多个经编码的音频视频内容流中的每个经编码的音频视频内容流分解成块，以产生多个分块编码的音频视频内容流; 对于所述多个设备中的每个设备，创建单独的索引文件，每个单独的索引文件包括对所述多个分块编码的音频视频内容流中的至少一个的引用; 为目录中的每个单独的索引文件发布定位器; 以及将多个分块编码的音频视频内容流和每个单独的索引文件发送到网络。还描述了相关系统，装置和方法。

2. 发明申请

WO2011144973A1 COLLISION BASED MULTIVARIATE SIGNATURE SCHEME 审中-公开
标题翻译：基于冲突的多重签名方案
公开(公告)号：WO2011144973A1
公开(公告)日：2011-11-24
申请号：PCT/IB2010/055316
申请日：2010-11-22
申请人： NDS LIMITED , KIPNIS, Aviad , SELLA, Yaron
发明人： KIPNIS, Aviad , SELLA, Yaron
IPC分类号： H04L9/30
CPC分类号： H04L9/3093 , H04L9/3247
摘要： A cryptographic method and system is described, the method and system including providing a key pair that includes a private key and a corresponding public key, which defines a multivariate polynomial mapping, computing, using a processor and the private key, a digital signature for a message such that a first application of the mapping to the digital signature gives a first result, and a second application of the mapping to the message gives a second result that is equal to the first result, and conveying the message with the digital signature to a recipient for authentication using the public key. Related hardware, methods, and systems are also described.
摘要翻译：描述了密码方法和系统，所述方法和系统包括提供密钥对，其包括专用密钥和对应的公开密钥，其定义多元多项式映射，使用处理器和私钥计算，数字签名消息，使得对数字签名的映射的第一应用给出第一结果，并且对消息的映射的第二应用给出等于第一结果的第二结果，并将具有数字签名的消息传送到收件人使用公钥进行身份验证。还描述了相关的硬件，方法和系统。

3. 发明申请

WO2007116390A2 FINGERPRINTING DESCRAMBLING KEYS 审中-公开
标题翻译：指示DESCRAMBLING KEYS
公开(公告)号：WO2007116390A2
公开(公告)日：2007-10-18
申请号：PCT/IL2006/000472
申请日：2006-04-11
申请人： NDS LIMITED , SUMNER, Reuben , SELLA, Yaron , KIPNIS, Aviad , WAISBARD, Erez
发明人： SUMNER, Reuben , SELLA, Yaron , KIPNIS, Aviad , WAISBARD, Erez
IPC分类号： H04L9/00
CPC分类号： H04L9/0866 , H04L9/3231 , H04L2209/42 , H04L2209/60
摘要： A method for producing fingerprinted descrambling keys is described, the method including providing a conditional access module, providing to the conditional access module a content descrambling key and personalization data, the personalization data including data associated with the conditional access module, combining the content descrambling key and the personalization data, encrypting the combined content descrambling key and personalization data according to a key, and outputting the encrypted combined content descrambling key and personalization data. Related methods and apparatus are also described.
摘要翻译：一种用于产生指纹解密密钥的方法，该方法包括提供条件访问模块，向条件访问模块提供内容解扰密钥和个性化数据，个性化数据包括与条件访问模块相关联的数据，组合内容解密密钥个性化数据，根据密钥加密组合内容解密密钥和个性化数据，并输出加密的组合内容解扰密钥和个性化数据。还描述了相关方法和装置。

4. 发明申请

WO2011151680A1 EFFICIENT MULTIVARIATE SIGNATURE GENERATION 审中-公开
标题翻译：有效的多重签名生成
公开(公告)号：WO2011151680A1
公开(公告)日：2011-12-08
申请号：PCT/IB2010/055810
申请日：2010-12-14
申请人： NDS LIMITED , KIPNIS, Aviad , SELLA, Yaron , BELENKY, Yaacov
发明人： KIPNIS, Aviad , SELLA, Yaron , BELENKY, Yaacov
IPC分类号： H04L9/32 , H04L9/30
CPC分类号： H04L9/30 , H04L9/0813 , H04L9/0819 , H04L9/0822 , H04L9/0825 , H04L9/0838 , H04L9/3073 , H04L9/3093 , H04L9/3247 , H04L2209/12
摘要： A cryptographic method and apparatus, including providing a public key that defines a multivariate polynomial mapping Q() over a finite field F, extracting a first vector Y of verification values from a message, computing over the first vector, using a processor, a digital signature X including a second vector of signature values such that application of the mapping to the digital signature gives a third vector Q(X) of output values such that each output value is equal to a corresponding element of a vector sum Y + aY SHIFT over F, wherein Y SHIFT is a shifted version of Y, and a ∈ F, and conveying the message with the digital signature to a recipient for authentication using the public key. Related methods, systems, and apparatus are also described.
摘要翻译：一种加密方法和装置，包括提供公共密钥，其在有限域F上定义多元多项式映射Q（），从消息中提取验证值的第一向量Y，使用处理器，数字签名X，其包括签名值的第二向量，使得对数字签名的映射的应用给出输出值的第三向量Q（X），使得每个输出值等于F上的向量和Y + aYSHIFT的对应元素其中YSHIFT是Y的移位版本，并且使用公钥将具有数字签名的消息传送给接收者进行认证。还描述了相关方法，系统和装置。

5. 发明申请

WO2012028968A1 ATTACK-RESISTANT MULTIVARIATE SIGNATURE SCHEME 审中-公开
标题翻译：防攻击多重签名方案
公开(公告)号：WO2012028968A1
公开(公告)日：2012-03-08
申请号：PCT/IB2011/050888
申请日：2011-03-02
申请人： NDS LIMITED , SELLA, Yaron , KIPNIS, Aviad
发明人： SELLA, Yaron , KIPNIS, Aviad
IPC分类号： H04L9/30
CPC分类号： H04L9/32 , H04L9/3093 , H04L9/3247
摘要： A cryptographic method, apparatus, and system, including selecting a first multivariate polynomial mapping, which includes first multivariate polynomial equations over first variables in a finite field, defining a second multivariate polynomial mapping, which includes at least some of the first multivariate polynomial equations and further includes second multivariate polynomial equations over the first variables together with second variables in the finite field, generating a public key based on the second multivariate polynomial mapping, and digitally signing a message, using a processor, with a digital signature that is verifiable using the public key and is generated by solving the first multivariate polynomial mapping to find respective first values of the first variables, solving a set of linear equations using the first values to find respective second values of the second variables, and applying a transform to the first and second values so as to generate a vector corresponding to the digital signature, wherein the second values are chosen so that a predefined group of elements of the vector will be zero. Related methods, apparatus, and systems are also described.
摘要翻译：一种加密方法，装置和系统，包括选择第一多元多项式映射，其包括在有限域中的第一变量上的第一多元多项式方程，定义第二多元多项式映射，其包括第一多元多项式方程中的至少一些，以及还包括在有限域中的第一变量和第二变量之间的第二多元多项式方程，基于第二多元多项式映射生成公钥，并使用处理器对使用可验证的数字签名进行数字签名的消息进行数字签名并且通过求解第一多元多项式映射来生成第一多变量多项式映射以找到第一变量的相应第一值，使用第一值求解一组线性方程来找出第二变量的相应第二值，并将变换应用于第一和第二个值，以产生一个相应的向量其中选择第二值使得向量的预定义的元素组将为零。还描述了相关方法，装置和系统。

6. 发明申请

WO2012172469A1 PUBLIC KEY CRYPTOGRAPHY WITH REDUCED COMPUTATIONAL LOAD 审中-公开
标题翻译：具有减少计算负载的公共关键曲线
公开(公告)号：WO2012172469A1
公开(公告)日：2012-12-20
申请号：PCT/IB2012/052930
申请日：2012-06-10
申请人： NDS LIMITED , KIPNIS, Aviad , HIBSHOOSH, Eliphaz
发明人： KIPNIS, Aviad , HIBSHOOSH, Eliphaz
IPC分类号： H04L9/30
CPC分类号： H04L63/0428 , H04L9/30
摘要： A cryptographic method, comprising receiving a public key belonging to a message recipient having a private key corresponding to the public key, selecting a numerical seed, having a first entropy, using the numerical seed and the public key, generating key recovery information having a second entropy, which is less than the first entropy, and generating a message key having a third entropy, which is less than the first entropy, encrypting a message using the message key, and transmitting the encrypted message and the key recovery information to the message recipient, whereby the recipient reconstructs the message key using the key recovery information and the private key and decrypts the encrypted message using the reconstructed message key. Related systems and methods are also included.
摘要翻译：一种加密方法，包括接收属于具有与所述公共密钥对应的私钥的消息接收者的公开密钥，使用所述数字种子和所述公开密钥选择具有第一熵的数字种子，生成具有第二个密钥的密钥恢复信息熵，其小于第一熵，并且生成具有小于第一熵的第三熵的消息密钥，使用消息密钥加密消息，以及将加密的消息和密钥恢复信息发送到消息接收者由此接收者使用密钥恢复信息和私有密钥来重建消息密钥，并且使用重构的消息密钥解密加密的消息。还包括相关系统和方法。

7. 发明申请

WO2014106781A1 SECRETS RENEWABILITY 审中-公开
标题翻译：秘密可再生能力
公开(公告)号：WO2014106781A1
公开(公告)日：2014-07-10
申请号：PCT/IB2013/055658
申请日：2013-07-10
申请人： NDS LIMITED , KARA-IVANOV, Michael , KIPNIS, Aviad , REINMAN, Tzachy , MANGELL, Efraim , WAISBARD, Erez , BELENKY, Yaacov
发明人： KARA-IVANOV, Michael , KIPNIS, Aviad , REINMAN, Tzachy , MANGELL, Efraim , WAISBARD, Erez , BELENKY, Yaacov
IPC分类号： H04L9/08
CPC分类号： H04L9/0861 , H04L9/0869
摘要： A method, system and apparatus for deriving a secondary secret from a root secret are described, the method, system and apparatus including reserving a memory buffer included in an integrated circuit, the memory buffer being large enough to contain all of the bits which will include the secondary secret, receiving a plurality of bits from a root secret, the root secret being stored in a secure memory of the integrated circuit, inputting the plurality of bits from the root secret and at least one control bit into a permutation network, and thereby producing a multiplicity of output bits, the at least one control bit including one of one bit of a value g, and one bit an output of a function which receives g as an input, receiving the multiplicity of output bits from the permutation network, inputting the multiplicity of output bits from the permutation network into a plurality of logic gates, thereby combining the multiplicity of output bits, wherein a fixed number of bits is output from the logic gates, inputting the fixed number of bits output by the logic gates into an error correcting code module, the fixed number of bits output by the logic gates including a first group of intermediate output bits and a second group of intermediate output bits and receiving output bits from the error correcting code module, the output bits of the error correcting code module including the first group of intermediate output bits as changed by the error correcting code module, where the change depends on the second group of intermediate output bits, filling non-filled registers in the reserved memory buffer with the first group of intermediate output bits as changed by the error correcting code module, and repeating the steps of "receiving a plurality of bits from a root secret" through "filling non-filled registers in the reserved memory buffer" until the entire secondary secret is derived, wherein the steps of "receiving a plurality of bits from a root secret" through "filling non-filled registers in the reserved memory buffer" are performed in a single clock cycle of the integrated circuit. Related apparatus, methods and systems are also described.
摘要翻译：描述了用于从根秘密导出第二秘密的方法，系统和装置，所述方法，系统和装置包括保留包括在集成电路中的存储器缓冲器，所述存储器缓冲器足够大以包含将包括的所有位第二秘密，从根秘密接收多个比特，根秘密被存储在集成电路的安全存储器中，从根秘密输入多个比特和至少一个控制比特进入置换网络，从而产生多个输出比特，所述至少一个控制比特包括值g的一个比特中的一个，一个比特作为接收g作为输入的函数的输出，从置换网络接收多个输出比特，输入从置换网络到多个逻辑门的多个输出比特，从而组合多个输出比特，其中固定比特数从逻辑门，将由逻辑门输出的固定位数输入到纠错码模块中，逻辑门输出的固定位数包括第一组中间输出位和第二组中间输出位，并接收来自纠错码模块的输出位，纠错码模块的输出位包括由纠错码模块改变的第一组中间输出位，其中改变取决于第二组中间输出位，所述预留存储器缓冲器中的所述第一组中间输出位的补充寄存器被所述纠错码模块改变，并且重复“从根秘密接收多个位”的步骤，通过“将未填充寄存器保留的存储器缓冲器“，直到导出完整的二级秘密，其中”通过“不填入”从“根秘密接收多个比特” 在保留的存储器缓冲器中的n个填充寄存器“在集成电路的单个时钟周期中执行。还描述了相关装置，方法和系统。

8. 发明申请

WO2012176076A9 KEY GENERATION USING MULTIPLE SETS OF SECRET SHARES 审中-公开
公开(公告)号：WO2012176076A9
公开(公告)日：2012-12-27
申请号：PCT/IB2012/052022
申请日：2012-04-23
申请人： NDS LIMITED , KIPNIS, Aviad , HIBSHOOSH, Eliphaz
发明人： KIPNIS, Aviad , HIBSHOOSH, Eliphaz
IPC分类号： H04L9/08
摘要： A cryptographic method, including generating, using a meta-secret, a first plurality of cryptographic keys, each cryptographic key associated with a respective key identifier, creating, using the meta-secret, a second plurality of sets of secret-shares, which are capable, by combining all the secrets-shares in any one of the sets together with the respective key identifier, of generating the associated cryptographic key, and performing cryptographic operations using the cryptographic keys. Related methods and apparatus are also included.

9. 发明申请

WO2007043045A3 METHOD AND SYSTEM FOR BLOCK CIPHER ENCRYPTION 审中-公开
公开(公告)号：WO2007043045A3
公开(公告)日：2007-04-19
申请号：PCT/IL2006/001167
申请日：2006-10-05
申请人： NDS LIMITED , MANTIN, Itsik , WAISBARD, Erez , KIPNIS, Aviad
发明人： MANTIN, Itsik , WAISBARD, Erez , KIPNIS, Aviad
IPC分类号： H04L9/06 , H04L9/28 , H04L9/16
摘要： A method of encrypting a block of data, is described, the method including providing a combining unit (110) operative to combine a key (RK) with a block of data (R), the block of data expressed as a block of bits, providing a mix and condense unit operative to mix bits included in the block of bits among themselves, receiving an input including the block of data expressed as the block of bits, combining, at the Combining unit, the block of bits with a key, and mixing, at the mixing and condensing unit, the combined block of bits, wherein the mix and condense unit includes a plurality of layers, each layer among the plurality of layers including a plurality of mini-functions Further a combine right left unit (120) is provided to combine the output of the combining unit with a second block of data (L)

10. 发明申请

WO2011001204A1 CONTENT PROTECTION MESSAGE EXTRACTION 审中-公开
标题翻译：内容保护消息提取
公开(公告)号：WO2011001204A1
公开(公告)日：2011-01-06
申请号：PCT/IB2009/052784
申请日：2009-06-29
申请人： NDS LIMITED , MANTIN, Itsik , KIPNIS, Aviad
发明人： MANTIN, Itsik , KIPNIS, Aviad
IPC分类号： G06T1/00
CPC分类号： G06T1/0085 , H04N19/115 , H04N19/159 , H04N19/162 , H04N19/172 , H04N19/467
摘要： A system for extracting a video-watermark embedded in a video sequence, comprising a decryption and decoding engine to receive the video sequence in a video-codec-encoded format and encrypted, then decrypt the video sequence yielding a decrypted video sequence, then decode the decrypted video sequence yielding a decrypted decoded video sequence, and then output the decrypted decoded video sequence to a display device for rendering thereon, a measurement module to measure memory usage utilized by the engine decoding at least part of the video sequence yielding measurements of memory usage, a memory usage analyzer to analyze the measurements to determine an arrangement of video frames of at least one frame type in the video sequence, and an encoding feature analyzer to analyze the arrangement of the video frames to extract the video-watermark from the video sequence. Related apparatus and methods are also described.
摘要翻译：一种用于提取嵌入在视频序列中的视频水印的系统，包括解码和解码引擎，以视频编解码器编码格式接收视频序列并加密，然后对产生解密的视频序列的视频序列进行解密，然后解码解密的视频序列，产生解密的解码视频序列，然后将解密后的解码视频序列输出到显示装置，以便在其上渲染;测量模块，用于测量由引擎解码所使用的存储器使用，至少部分视频序列产生存储器使用量度，用于分析测量以确定视频序列中至少一种帧类型的视频帧的排列的存储器使用分析器，以及用于分析视频帧的排列以从视频序列中提取视频水印的编码特征分析器。还描述了相关装置和方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式