Efficient Multivariate Signature Generation
    1.
    发明申请
    Efficient Multivariate Signature Generation 有权
    有效的多变量签名生成

    公开(公告)号:US20130129090A1

    公开(公告)日:2013-05-23

    申请号:US13699912

    申请日:2010-12-14

    IPC分类号: H04L9/30

    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+aYSHIFT over F, wherein YSHIFT is a shifted version of Y, and aεF, 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上定义多变量多项式映射Q(),从消息中提取验证值的第一向量Y,使用处理器,数字 包括签名值的第二向量的签名X,使得映射到数字签名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,和aepsilon,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。

    Efficient multivariate signature generation
    3.
    发明授权
    Efficient multivariate signature generation 有权
    有效的多变量签名生成

    公开(公告)号:US08958560B2

    公开(公告)日:2015-02-17

    申请号:US13699912

    申请日:2010-12-14

    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+aYSHIFT over F, wherein YSHIFT is a shifted version of Y, and aεF, 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上定义多变量多项式映射Q(),从消息中提取验证值的第一向量Y,使用处理器,数字 包括签名值的第二向量的签名X,使得映射到数字签名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,以及F,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。

    Digital certificates
    4.
    发明授权
    Digital certificates 有权
    数字证书

    公开(公告)号:US07904721B2

    公开(公告)日:2011-03-08

    申请号:US12005523

    申请日:2007-12-27

    IPC分类号: H04L9/28 H04L9/30

    摘要: A method for producing a certificate, the certificate including data, the method including choosing a seed s, the seed s including a result of applying a function H to the data, generating a key pair (E,D), such that E=F(s,t), F being a publicly known function, and including s and t in the certificate. Related methods, and certificates produced by the various methods, are also described.

    摘要翻译: 一种生产证书的方法,包括数据的证书,包括选择种子的方法,包括对数据应用函数H的结果的种子,产生密钥对(E,D),使得E = F (s,t),F是公知的功能,在证书中包括s和t。 还描述了相关方法和由各种方法产生的证书。

    Digital certificates
    5.
    发明申请
    Digital certificates 有权
    数字证书

    公开(公告)号:US20090037738A1

    公开(公告)日:2009-02-05

    申请号:US12005523

    申请日:2007-12-27

    摘要: A method for producing a certificate, the certificate including data, the method including choosing a seed s, the seed s including a result of applying a function H to the data, generating a key pair (E,D), such that E=F(s,t), F being a publicly known function, and including s and t in the certificate. Related methods, and certificates produced by the various methods, are also described.

    摘要翻译: 一种生产证书的方法,包括数据的证书,包括选择种子的方法,包括对数据应用函数H的结果的种子,产生密钥对(E,D),使得E = F (s,t),F是公知的功能,在证书中包括s和t。 还描述了相关方法和由各种方法产生的证书。

    Digital certificates
    6.
    发明授权
    Digital certificates 失效
    数字证书

    公开(公告)号:US07340606B2

    公开(公告)日:2008-03-04

    申请号:US10545737

    申请日:2003-12-29

    摘要: A method for producing a certificate, the certificate including data, the method including choosing a seed s, the seed s including a result of applying a function H to the data, generating a key pair (E,D), such that E=F(s,t), F being a publicly known function, and including s and t in the certificate. Related methods, and certificates produced by the various methods, are also described.

    摘要翻译: 一种生产证书的方法,包括数据的证书,包括选择种子的方法,包括对数据应用函数H的结果的种子,产生密钥对(E,D),使得E = F (s,t),F是公知的功能,在证书中包括s和t。 还描述了相关方法和由各种方法产生的证书。

    Attack-Resistant Multivariate Signature Scheme
    7.
    发明申请
    Attack-Resistant Multivariate Signature Scheme 有权
    抗攻击多变量签名方案

    公开(公告)号:US20130177151A1

    公开(公告)日:2013-07-11

    申请号:US13814425

    申请日:2011-03-02

    IPC分类号: H04L9/32

    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。

    Collision Based Multivariate Signature Scheme
    8.
    发明申请
    Collision Based Multivariate Signature Scheme 审中-公开
    基于碰撞的多变量签名方案

    公开(公告)号:US20130073855A1

    公开(公告)日:2013-03-21

    申请号:US13643511

    申请日:2010-11-22

    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。

    Distributing audio video content
    9.
    发明授权
    Distributing audio video content 有权
    分发音频视频内容

    公开(公告)号:US09407941B2

    公开(公告)日:2016-08-02

    申请号:US14126722

    申请日:2012-06-21

    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。

    Attack-resistant multivariate signature scheme
    10.
    发明授权
    Attack-resistant multivariate signature scheme 有权
    抗攻击多变量签名方案

    公开(公告)号:US08811608B2

    公开(公告)日:2014-08-19

    申请号:US13814425

    申请日:2011-03-02

    IPC分类号: H04K1/00

    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。