Native scrambling system
    1.
    发明授权
    Native scrambling system 有权
    本地扰码系统

    公开(公告)号:US07940930B2

    公开(公告)日:2011-05-10

    申请号:US11918110

    申请日:2006-03-22

    IPC分类号: H04N7/167 H04L29/06

    摘要: A system for scrambling/descrambling packets of a stream of content, each packet having a must stay clear (MSC) section, the system including an input handler including a receiving module to receive the stream, a characteristic analyzer to analyze the stream in order to determine a data independent characteristic of each packet, and a scrambling /descrambling device operationally associated with the input handler, the scrambling/descrambling device including a receiving module to receive the data independent characteristic for each packet from the input handler, and an Initial Value module to determine an Initial Value for each packet as a function of the data independent characteristic of one of the packets being processed, wherein the scrambling/descrambling device is adapted to scramble and/or descramble the packets based on the Initial Value and a Control Word. Related apparatus and methods are included.

    摘要翻译: 一种用于对内容流进行加扰/解扰的分组的系统,每个分组具有必须保持清晰(MSC)部分,所述系统包括包括接收模块的输入处理器以接收流;特征分析器,用于分析流,以便 确定每个分组的数据独立特性,以及与输入处理器操作地相关联的加扰/解扰设备,加扰/解扰设备包括接收模块,用于从输入处理器接收每个分组的数据独立特性,以及初始值模块 根据所处理的一个分组的数据独立特性来确定每个分组的初始值,其中所述加扰/解扰设备适于基于初始值和控制字对分组进行加扰和/或解扰。 包括相关的装置和方法。

    Key generation using multiple sets of secret shares
    2.
    发明授权
    Key generation using multiple sets of secret shares 有权
    使用多套秘密股的密钥生成

    公开(公告)号:US09106407B2

    公开(公告)日:2015-08-11

    申请号:US13976717

    申请日:2012-04-23

    IPC分类号: H04L9/00 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.

    摘要翻译: 一种加密方法,包括使用元秘密生成第一多个加密密钥,与各个密钥标识符相关联的每个加密密钥,使用所述元秘密创建第二多组秘密份额,所述第二组密钥是 能够通过组合任何一个集合中的所有秘密共享以及相应的密钥标识符来生成相关密码密钥,以及使用密码密钥执行密码操作。 还包括相关方法和装置。

    Key Generation Using Multiple Sets of Secret Shares
    3.
    发明申请
    Key Generation Using Multiple Sets of Secret Shares 有权
    使用多套秘密股的密钥生成

    公开(公告)号:US20130272521A1

    公开(公告)日:2013-10-17

    申请号:US13976717

    申请日:2012-04-23

    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.

    摘要翻译: 一种加密方法,包括使用元秘密生成第一多个加密密钥,与各个密钥标识符相关联的每个加密密钥,使用所述元秘密创建第二多组秘密份额,所述第二组密钥是 能够通过组合任何一个集合中的所有秘密共享以及相应的密钥标识符来生成相关密码密钥,以及使用密码密钥执行密码操作。 还包括相关方法和装置。

    Public key cryptography with reduced computational load
    6.
    发明授权
    Public key cryptography with reduced computational load 有权
    减少计算负荷的公共密钥加密

    公开(公告)号:US09264406B2

    公开(公告)日:2016-02-16

    申请号:US14001541

    申请日:2012-06-10

    IPC分类号: H04L29/06 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相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。

    Computer-implemented method and apparatus for encoding natural-language text content and/or detecting plagiarism
    7.
    发明授权
    Computer-implemented method and apparatus for encoding natural-language text content and/or detecting plagiarism 有权
    用于编码自然语言文本内容和/或检测剽窃的计算机实现的方法和装置

    公开(公告)号:US09213847B2

    公开(公告)日:2015-12-15

    申请号:US13997916

    申请日:2011-09-07

    IPC分类号: G06F17/21 G06F21/60 G06F17/30

    摘要: A computer-implemented letter-based method of encoding a length-significant portion of natural language text to generate a letter-based fingerprint of the text portion, the method including detecting letter-based locations of occurrences of pre-determined single-letter and/or multi-letter pattern(s) within the length-significant portion, the detecting being carried out such that at least some occurrences are detected in a word-boundary independent manner that does not depend on locations of word-word boundaries, for a pattern occurrence letter-position signal which describes letter positions of the occurrences of the patterns within the text portion, computing frequency-dependent absolute or relative magnitudes of signal strength for a plurality of frequencies, the computed magnitudes representing letter-based frequencies of the pattern occurrences within the natural language text portion, and storing the computed signal strength magnitudes at the plurality of frequencies, the generated fingerprint comprising the stored signal strength magnitudes. Related apparatus and methods are also described.

    摘要翻译: 一种基于计算机实现的基于字母的自然语言文本的长度重要部分的编码方法,用于生成文本部分的基于字母的指纹,所述方法包括检测基于字母的预先确定的单字母和/ 或多字母图案,检测被执行,使得至少一些出现以不依赖于字词边界的位置的单词边界独立的方式被检测到,用于图案 描述文本部分中图案出现的字母位置的字母位置信号,计算多个频率的信号强度的频率相关的绝对或相对幅度,所计算的幅度表示模式中基于字母的频率, 自然语言文本部分,并且存储在多个频率处的计算出的信号强度幅度,生成 d指纹包括存储的信号强度大小。 还描述了相关装置和方法。

    Fast channel change via a mosaic channel
    8.
    发明授权
    Fast channel change via a mosaic channel 有权
    通过马赛克通道快速切换频道

    公开(公告)号:US08925030B2

    公开(公告)日:2014-12-30

    申请号:US14002476

    申请日:2011-12-22

    摘要: A fast channel change (FFC) system including a tuner arrangement to receive at least one transport stream including an aggregated video service (AVS) and TV channels, each video frame of the AVS including some video data of each channel, a demultiplexer arrangement to demultiplex a first channel and the AVS, a FCC buffer to buffer the video frames of the AVS, a decoder arrangement to decode the first channel, a controller to instruct the decoder arrangement to switch from decoding the first channel to decoding the AVS from the FCC buffer, and a graphic engine to extract the video data of a second channel from the AVS yielding a full-screen video, and output the full-screen video to a display device, wherein the controller is operative to instruct the decoder arrangement to switch from decoding the AVS to decoding the second channel. Related apparatus and methods are also described.

    摘要翻译: 一种快速频道改变(FFC)系统,包括用于接收包括聚合视频服务(AVS)和TV频道的至少一个传输流的调谐器装置,AVS的每个视频帧包括每个频道的一些视频数据,解复用器布置以解复用 第一通道和AVS,用于缓冲AVS的视频帧的FCC缓冲器,用于解码第一通道的解码器装置,控制器,指示解码器装置从解码第一通道切换到从FCC缓冲器解码AVS 以及图形引擎,从AVS提取第二频道的视频数据,产生全屏视频,并将全屏视频输出到显示装置,其中控制器用于指示解码器装置从解码 AVS解码第二个通道。 还描述了相关装置和方法。

    Computer-Implemented Method and Apparatus for Encoding Natural-Language Text Content And/Or Detecting Plagiarism
    10.
    发明申请
    Computer-Implemented Method and Apparatus for Encoding Natural-Language Text Content And/Or Detecting Plagiarism 有权
    用于编码自然语言文本内容和/或检测抄袭的计算机实现的方法和装置

    公开(公告)号:US20140075566A1

    公开(公告)日:2014-03-13

    申请号:US13997916

    申请日:2011-09-07

    IPC分类号: G06F21/60

    摘要: A computer-implemented letter-based method of encoding a length-significant portion of natural language text to generate a letter-based fingerprint of the text portion, the method including detecting letter-based locations of occurrences of pre-determined single-letter and/or multi-letter pattern(s) within the length-significant portion, the detecting being carried out such that at least some occurrences are detected in a word-boundary independent manner that does not depend on locations of word-word boundaries, for a pattern occurrence letter-position signal which describes letter positions of the occurrences of the patterns within the text portion, computing frequency-dependent absolute or relative magnitudes of signal strength for a plurality of frequencies, the computed magnitudes representing letter-based frequencies of the pattern occurrences within the natural language text portion, and storing the computed signal strength magnitudes at the plurality of frequencies, the generated fingerprint comprising the stored signal strength magnitudes. Related apparatus and methods are also described.

    摘要翻译: 一种基于计算机实现的基于字母的自然语言文本的长度重要部分的编码方法,用于生成文本部分的基于字母的指纹,所述方法包括检测基于字母的预先确定的单字母和/ 或多字母图案,检测被执行,使得至少一些出现以不依赖于字词边界的位置的单词边界独立的方式被检测到,用于图案 描述文本部分中图案出现的字母位置的字母位置信号,计算多个频率的信号强度的频率相关的绝对或相对幅度,所计算的幅度表示模式中基于字母的频率, 自然语言文本部分,并且存储在多个频率处的计算出的信号强度幅度,生成 d指纹包括存储的信号强度大小。 还描述了相关装置和方法。