Method and apparatus for digital signature generation and validation
    2.
    发明授权
    Method and apparatus for digital signature generation and validation 有权
    用于数字签名生成和验证的方法和装置

    公开(公告)号:US08412948B2

    公开(公告)日:2013-04-02

    申请号:US11366419

    申请日:2006-03-03

    IPC分类号: H04L9/08 H04L9/32

    CPC分类号: H04L9/3236 H04L9/3247

    摘要: An apparatus and method are provided for reducing time taken for generating a digital signature and generating the digital signature using a minimum number of operations using at least two secret keys. One secret key among at least two secret keys may be set from a value resulting from hashing a message to be transmitted. A number of times for hashing the secret key is determined, and a value resulting from hashing the determined secret key by the determined hashing number of times is set as the digital signature.

    摘要翻译: 提供了一种装置和方法,用于减少用于生成数字签名所花费的时间并使用至少两个秘密密钥使用最少数量的操作生成数字签名。 至少两个秘密密钥中的一个密钥可以从散列要发送的消息得到的值来设置。 确定用于散列秘密密钥的次数,并将由确定的密钥散列确定的散列次数得到的值设置为数字签名。

    Method of and device for updating group key
    3.
    发明授权
    Method of and device for updating group key 有权
    组密钥更新方法和设备

    公开(公告)号:US08401182B2

    公开(公告)日:2013-03-19

    申请号:US11819230

    申请日:2007-06-26

    IPC分类号: G06F21/00

    CPC分类号: H04L9/0891 H04L9/0836

    摘要: A method and device for updating a group key are disclosed. The group key updating method comprises determining a start node for a key update on a binary tree, updating a node key of the start node for a key update, updating a node key of a parent node of a node corresponding to the updated node key using the updated node key, and repeatedly performing the updating of the node key of the parent node, and then updating a node key corresponding to a root node of the binary tree. With the disclosed method and device, it is possible to efficiently perform a group key update process.

    摘要翻译: 公开了一种用于更新组密钥的方法和设备。 组密钥更新方法包括:确定用于二进制树上的密钥更新的起始节点,更新用于密钥更新的起始节点的节点密钥,使用更新的节点密钥更新与节点密钥相对应的节点的父节点的节点密钥 更新的节点密钥,并且重复执行父节点的节点密钥的更新,然后更新与二叉树的根节点相对应的节点密钥。 利用所公开的方法和装置,可以有效地执行组密钥更新处理。

    Method of updating group key and group key update device using the same
    4.
    发明授权
    Method of updating group key and group key update device using the same 有权
    更新使用该组密钥和组密钥更新设备的组密钥和组密钥更新设备的方法

    公开(公告)号:US08270614B2

    公开(公告)日:2012-09-18

    申请号:US11819255

    申请日:2007-06-26

    IPC分类号: H04L9/08

    CPC分类号: H04L9/0836 H04L9/0891

    摘要: A group key update method and a group key update apparatus for updating a key of members in a group are provided. The group key update method includes selecting a sub-root node among nodes on the binary tree; performing a node change with respect to the group according to a type of the sub-root node, and generating a changed binary tree; and performing a node key update with respect to the changed binary tree.

    摘要翻译: 提供了用于更新组中的成员的密钥的组密钥更新方法和组密钥更新装置。 组密钥更新方法包括在二叉树上的节点中选择子根节点; 根据子根节点的类型执行关于组的节点改变,并且生成改变的二叉树; 并且针对改变的二叉树执行节点密钥更新。

    Apparatus for detecting intrusion code and method using the same
    6.
    发明授权
    Apparatus for detecting intrusion code and method using the same 有权
    用于检测入侵码的装置及其使用方法

    公开(公告)号:US08205256B2

    公开(公告)日:2012-06-19

    申请号:US11874348

    申请日:2007-10-18

    IPC分类号: H04L29/06

    CPC分类号: G06F21/56 G06F21/564

    摘要: An apparatus and method of detecting an intrusion code is provided. The apparatus for detecting an intrusion code includes: a set value input unit in which a set value differentiated for each group is input; an immune database generation unit which generates an immune database, based on the set value; and an intrusion code determination unit which determines whether data corresponds to an intrusion code, based on the generated immune database.

    摘要翻译: 提供了一种检测入侵码的设备和方法。 用于检测入侵码的装置包括:设定值输入单元,其中输入针对每个组区分的设定值; 免疫数据库生成单元,其基于所述设定值生成免疫数据库; 以及入侵码确定单元,其基于所生成的免疫数据库来确定数据是否对应于入侵码。

    Distributed Rivest Shamir Adleman signature method and signature generation node
    7.
    发明授权
    Distributed Rivest Shamir Adleman signature method and signature generation node 有权
    分布式Rivest Shamir Adleman签名方法和签名生成节点

    公开(公告)号:US07971064B2

    公开(公告)日:2011-06-28

    申请号:US11798403

    申请日:2007-05-14

    IPC分类号: H04L9/00

    摘要: A distributed Rivest Shamir Adleman (RSA) signature generation method in an ad-hoc network and a signature generation node are provided, including steps for distributing key information to a plurality of nodes using an RSA parameter and a maximum distance separable (MDS) code, in a dealer node, generating a partial signature using the key information and transmitting the generated partial signature to a signature generation node, in the plurality of nodes, and generating an RSA signature using the partial signature, in the signature generation node, wherein the RSA signature is generated using the partial signature, received from a fewer number of nodes than the entire plurality of nodes.

    摘要翻译: 提供了一种在自组织网络和签名生成节点中的分布式Rivest Shamir Adleman(RSA)签名生成方法,包括使用RSA参数和最大距离可分离(MDS)码将密钥信息分发到多个节点的步骤, 在经销商节点中,使用所述密钥信息生成部分签名,并将生成的部分签名发送到所述多个节点中的签名生成节点,并且在所述签名生成节点中生成使用所述部分签名的RSA签名,其中,所述R​​SA 使用从比整个多个节点更少数量的节点接收的部分签名生成签名。

    Method and apparatus for generating and verifying digital signature
    8.
    发明授权
    Method and apparatus for generating and verifying digital signature 有权
    用于生成和验证数字签名的方法和装置

    公开(公告)号:US07895438B2

    公开(公告)日:2011-02-22

    申请号:US11367446

    申请日:2006-03-06

    IPC分类号: H04L9/00 H04L9/32

    摘要: Disclosed are a method and apparatus capable of reducing the number of computations required to generate a digital signature by a digital signature generator. A digital signature generator generates a code word for a received message by a function F for generating a code word having a set weight value and generates a digital signature based on the generated code word and an inverse of a public parity check matrix H, the parity check matrix H is one way function. A digital signature receiver converts the received message using the function F for generating a code word, and multiplies a public parity check matrix H by a received digital signal, the public parity check matrix H is a one way function, and comparing the converted value with the multiplication result.

    摘要翻译: 公开了一种能够减少由数字签名生成器生成数字签名所需的计算次数的方法和装置。 数字签名生成器通过函数F产生用于产生具有设定权重值的码字的接收消息的码字,并且基于生成的码字和公共奇偶校验矩阵H的倒数生成数字签名,奇偶校验 校验矩阵H是单向函数。 数字签名接收器使用函数F转换接收到的消息以产生码字,并将公共奇偶校验矩阵H乘以接收到的数字信号,公共校验矩阵H是单向函数,并将转换后的值与 乘法结果。

    Distributed Rivest Shamir Adleman signature method and signature generation node
    9.
    发明申请
    Distributed Rivest Shamir Adleman signature method and signature generation node 有权
    分布式Rivest Shamir Adleman签名方法和签名生成节点

    公开(公告)号:US20080155265A1

    公开(公告)日:2008-06-26

    申请号:US11798403

    申请日:2007-05-14

    IPC分类号: H04L9/00

    摘要: A distributed Rivest Shamir Adleman (RSA) signature generation method in an ad-hoc network and a signature generation node are provided, including steps for distributing key information to a plurality of nodes using an RSA parameter and a maximum distance separable (MDS) code, in a dealer node, generating a partial signature using the key information and transmitting the generated partial signature to a signature generation node, in the plurality of nodes, and generating an RSA signature using the partial signature, in the signature generation node, wherein the RSA signature is generated using the partial signature, received from a fewer number of nodes than the entire plurality of nodes.

    摘要翻译: 提供了一种在自组织网络和签名生成节点中的分布式Rivest Shamir Adleman(RSA)签名生成方法,包括使用RSA参数和最大距离可分离(MDS)码将密钥信息分发到多个节点的步骤, 在经销商节点中,使用所述密钥信息生成部分签名,并将生成的部分签名发送到所述多个节点中的签名生成节点,并且在所述签名生成节点中生成使用所述部分签名的RSA签名,其中,所述R​​SA 使用从比整个多个节点更少数量的节点接收的部分签名生成签名。

    Method of generating node indentifier in tree structure
    10.
    发明申请
    Method of generating node indentifier in tree structure 有权
    在树结构中生成节点标识符的方法

    公开(公告)号:US20080086448A1

    公开(公告)日:2008-04-10

    申请号:US11785672

    申请日:2007-04-19

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30961

    摘要: Provided are a method of generating a node identifier including padding information and location information, in a tree structure, a computer-readable storage medium storing a program for executing a method of generating a node identifier in a tree structure, and a terminal apparatus using the tree structure. The location information is generated by using branch identifiers, each of the branch identifiers being allocated for each branch from a root node to a target node. The padding information is generated by a padding code, which includes information about a group of the target node, and depth information, which includes information about a level of the target node in the tree structure.

    摘要翻译: 提供了一种在树结构中生成包括填充信息和位置信息的节点标识符的方法,存储用于执行在树结构中生成节点标识符的方法的程序的计算机可读存储介质,以及使用 树结构。 通过使用分支标识符来生成位置信息,每个分支从根节点分配给目标节点。 填补信息由包括关于目标节点的组的信息的填充代码和包括关于树结构中的目标节点的级别的信息的深度信息生成。