Digital signature method based on braid groups conjugacy and verify method thereof
    14.
    发明申请
    Digital signature method based on braid groups conjugacy and verify method thereof 有权
    基于编织组共轭的数字签名方法及其验证方法

    公开(公告)号:US20070104322A1

    公开(公告)日:2007-05-10

    申请号:US10579801

    申请日:2004-11-12

    CPC classification number: H04L9/3073 H04L9/302 H04L9/3249 H04L2209/68

    Abstract: The present invention discloses a digital signature scheme based on braid group conjugacy problem and a verifying method thereof, wherein the signatory S selects three braids xεLBm(l), x′εBn(l), aεBn(l), and considers braid pair (x′,x) as a public key of S, braid a as a private key of S; Signatory S uses hash function h for a message M needing signature to get y=h(M)εBn(l); generating a braid bεRBn−1−m(l) randomly, then signing the message M with the own private key a and the braid b generated randomly to obtain Sign(M)=a−1byb−1a; a signature verifying party V obtains the public key of S, calculating the message M by employing a system parameter hash function h, obtaining the y=h(M); judging whether sign(M) and y are conjugate or not, if not, sign(M) is an illegal signature, the verification fails; if yes, sign(M) is a legal signature of message M; the present invention avoids the problem of k-CSP in SCSS signature scheme of prior art, and improves the security of signature algorithm and reduces the number of braids involved and the number for conjugacy decision without reducing security, thereby improving the operation efficiency of signature.

    Abstract translation: 本发明公开了一种基于编织群共轭问题的数字签名方案及其验证方法,其中签名者S选择三个辫子bra B m SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB (l),aepsilonB(1),并将辫子对(x',x)视为S的公钥,辫子a作为S的私钥; 签名者S使用哈希函数h来获得需要签名的消息M,以获得y = h(M)epsilonB(1); 随机生成辫子bepsilonRB n-1-m(l),然后用自己的私钥a签署消息M,随机生成辫子b以获得Sign(M)= a& 1 BYB -1; 签名验证方V获得S的公开密钥,通过采用系统参数散列函数h来计算消息M,获得y = h(M); 判断符号(M)和y是否是共轭的,如果不是,则(M)是非法签名,验证失败; 如果是,则(M)是消息M的合法签名; 本发明避免了现有技术的SCSS签名方案中的k-CSP问题,提高了签名算法的安全性,减少了涉及的辫子数量和共轭决定的数量,而不降低安全性,从而提高了签名的操作效率。

    MONITORING METHOD AND SYSTEM AND INTEGRATED MONITORING DEVICE FOR ANTENNA OSCILLATOR OF BASE STATION
    16.
    发明申请
    MONITORING METHOD AND SYSTEM AND INTEGRATED MONITORING DEVICE FOR ANTENNA OSCILLATOR OF BASE STATION 有权
    天基振荡器监测方法与系统及综合监测装置

    公开(公告)号:US20140203977A1

    公开(公告)日:2014-07-24

    申请号:US14342647

    申请日:2012-04-10

    CPC classification number: G01R29/10 H01Q21/06 H04B17/10

    Abstract: Disclosed are a monitoring method and system and an integrated monitoring device for an antenna oscillator of a base station, which are used to monitor whether an anomaly occurs in the antenna oscillator of the base station. The monitoring method for an antenna oscillator of a base station in the present invention comprises: performing wave detection and analog-to-digital conversion on an obtained transmission signal of the antenna oscillator of the base station, to acquire a digital signal of a direct-current signal of the transmission signal; determining the amplitude of changes of the digital signal in a set time length, and when the amplitude of the changes is greater than a preset amplitude change threshold, determining that an anomaly occurs in the antenna oscillator; otherwise, determining that the antenna element is normal.

    Abstract translation: 公开了用于基站的天线振荡器的监视方法和系统以及集成监视装置,其用于监视基站的天线振荡器中是否发生异常。 本发明的基站天线振荡器的监视方法包括:对获得的基站的天线振荡器的发送信号执行波检测和模数转换,获取直接 - 传输信号的当前信号; 在设定的时间长度内确定数字信号的变化的幅度,当变化的幅度大于预设的幅度变化阈值时,确定在天线振荡器中发生异常; 否则,确定天线元件是正常的。

    Composite Perfluorohydrocarbon Membranes, Their Preparation and Use
    17.
    发明申请
    Composite Perfluorohydrocarbon Membranes, Their Preparation and Use 有权
    复合全氟烃膜,其制备与应用

    公开(公告)号:US20110120307A1

    公开(公告)日:2011-05-26

    申请号:US12979565

    申请日:2010-12-28

    Abstract: Composite porous hydrophobic membranes are prepared by forming a perfluorohydrocarbon layer on the surface of a preformed porous polymeric substrate. The substrate can be formed from poly(aryl ether ketone) and a perfluorohydrocarbon layer can be chemically grafted to the surface of the substrate. The membranes can be utilized for a broad range of fluid separations, such as microfiltration, nanofiltration, ultrafiltration as membrane contactors for membrane distillation and for degassing and dewatering of fluids. The membranes can further contain a dense ultra-thin perfluorohydrocarbon layer superimposed on the porous poly(aryl ether ketone) substrate and can be utilized as membrane contactors or as gas separation. membranes for natural gas treatment and gas dehydration.

    Abstract translation: 通过在预成型的多孔聚合物基材的表面上形成全氟烃层来制备复合多孔疏水膜。 基材可以由聚(芳基醚酮)形成,并且全氟烃层可以化学接枝到基材的表面。 膜可以用于广泛的流体分离,例如微滤,纳滤,超滤作为用于膜蒸馏的膜接触器和用于流体的脱气和脱水。 膜可以进一步含有叠加在多孔聚(芳醚酮)基底上的致密超薄全氟烃层,并可用作膜接触器或气体分离。 用于天然气处理和气体脱水的膜。

    Digital signature method based on braid groups conjugacy and verify method thereof
    18.
    发明授权
    Digital signature method based on braid groups conjugacy and verify method thereof 有权
    基于编织组共轭的数字签名方法及其验证方法

    公开(公告)号:US07725724B2

    公开(公告)日:2010-05-25

    申请号:US10579801

    申请日:2004-11-12

    CPC classification number: H04L9/3073 H04L9/302 H04L9/3249 H04L2209/68

    Abstract: The present invention discloses a digital signature scheme based on braid group conjugacy problem and a verifying method thereof, wherein a signatory S selects three braids xεLBm(l), x′εBn(l), aεBn(l), and considers braid pair (x′,x) as a public key of S, braid a as a private key of S; Signatory S uses hash function h for a message M needing signature to get y=h(M)εBn(l); generating a braid bεRBn−1−m(l) randomly, then signing M with a and b to obtain Sign(M)=a−1byb−1a; a signature verifying party V obtains the public key of S, calculating the message M by employing hash function h, obtaining the y=h(M); judging whether sign(M) and y, sign(M)x′ and xy are conjugate or not, if yes, sign(M) is a legal signature of message M; the present invention reduces the number of braids involved and the number for conjugacy decision without reducing security, thereby improving the operation efficiency of signature.

    Abstract translation: 本发明公开了一种基于编织群共轭问题的数字签名方案及其验证方法,其中签名人S选择三个辫子x(x,y)和(b)(l) 并将辫子对(x',x)视为S的公钥,辫子a作为S的私钥; 签名者S使用哈希函数h来获得需要签名的消息M,以获得y = h(M)&egr; Bn(1); 随机生成一个辫子和RBn-1-m(l),然后用a和b签名M,得到Sign(M)= a-1byb-1a; 签名验证方V获得S的公钥,通过采用哈希函数h计算消息M,获得y = h(M); 判断符号(M)和y,符号(M)x'和xy是否是共轭的,如果是,则符号(M)是消息M的合法签名; 本发明在不降低安全性的情况下减少所涉及的辫子的数量和共同决定的数量,从而提高签名的操作效率。

    METHOD AND SYSTEM FOR AVOIDANCE OF SOFTWARE CONFLICT
    19.
    发明申请
    METHOD AND SYSTEM FOR AVOIDANCE OF SOFTWARE CONFLICT 失效
    避免软件冲突的方法和系统

    公开(公告)号:US20070180441A1

    公开(公告)日:2007-08-02

    申请号:US11615898

    申请日:2006-12-22

    CPC classification number: G06F8/71 G06F9/44552

    Abstract: A method/system for avoiding software conflicts, with library being divided into layer 1 to layer M and M≧1. The method including the following steps: before a program runs, prescanning calling functions of the binary executable code of the program and called functions that belong to libraries of layer 1 and are individually called by the calling functions of the binary executable code of the program, and if M>1, further prescanning calling functions that belong to libraries of layer 1 to layer M−1 and called functions that belong to libraries of layer 2 to layer M and are individually called by the calling functions that belong to libraries of layer 1 to layer M−1, so as to determine whether there exists any individual conflict between the calling functions and the corresponding called functions; if there exists at least one conflict, storing at least one piece of conflict information individually indicating the at least one conflict; and when the program calls a library directly called by the program, abandoning loading of the library if conflict information correspond to the library has been stored, or loading the library otherwise.

    Abstract translation: 一种用于避免软件冲突的方法/系统,库被分为第1层到第M层,M> = 1。 该方法包括以下步骤:在程序运行之前,预处理程序的二进制可执行代码的调用函数,并调用属于第1层的库并由程序的二进制可执行代码的调用函数单独调用的函数, 如果M> 1,进一步将属于第1层的库的调用函数调用到M-1层,并将属于第2层的库的功能称为层M,并由属于第1层的库的调用函数单独调用 到层M-1,以便确定在调用函数和相应的被调用函数之间是否存在任何单独的冲突; 如果存在至少一个冲突,则存储至少一个冲突信息单独指示所述至少一个冲突; 当程序调用程序直接调用的库时,如果冲突信息对应于库,则放弃库的加载,否则加载库。

    Optical performance monitor
    20.
    发明授权
    Optical performance monitor 失效
    光学性能监视器

    公开(公告)号:US07035505B2

    公开(公告)日:2006-04-25

    申请号:US10896779

    申请日:2004-07-22

    CPC classification number: H04B10/0795 G02B6/12019

    Abstract: An apparatus for monitoring an input optical signal at a plurality of distinct optical frequencies is disclosed wherein a demultiplexing arrayed waveguide grating (AWG) having a plurality of M>1 Vernier input ports is disposed between an optical switch and a photodiode array coupled to the output ports of the AWG. In operation, the optical switch sequentially provides the input optical signal into each of the Vernier ports, and signals detected by photodiodes are stored in a memory unit. The apparatus is capable of monitoring the input optical signal with a frequency step which is M times smaller than a frequency spacing between the AWG transmission bands, and obtain M frequency-resolved readings from each photodiode.

    Abstract translation: 公开了一种用于监控多个不同光频率的输入光信号的装置,其中具有多个M> 1游标输入端口的解复用阵列波导光栅(AWG)被布置在光开关和耦合到输出端的光电二极管阵列之间 特设工作组的港口。 在操作中,光开关顺序地将输入光信号提供给每个游标端口,并且由光电二极管检测的信号被存储在存储器单元中。 该装置能够以比AWG传输频带之间的频率间隔小M倍的频率步长来监测输入光信号,并且从每个光电二极管获得M个频率分辨的读数。

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