METHOD AND APPARATUS FOR ENCODING SECURITY STATUS INFORMATION
    21.
    发明申请
    METHOD AND APPARATUS FOR ENCODING SECURITY STATUS INFORMATION 有权
    编码安全状态信息的方法和装置

    公开(公告)号:US20090316902A1

    公开(公告)日:2009-12-24

    申请号:US12549075

    申请日:2009-08-27

    申请人: Marinus Struik

    发明人: Marinus Struik

    IPC分类号: H04L9/00

    摘要: A method of transmitting messages from a sender to a recipient over a wireless channel, the messages including a sequence counter and a frame counter. The method comprises establishing initial values of the sequence counter and the frame counter at the sender. Initial values of the frame counter and the sequence counter are provided to the recipient. The sender sends compressed messages including the value of the sequence counter and not the frame counter and monitors for an acknowledgement of receipt by the recipient. When no acknowledgment is received, the sender sends uncompressed messages until an acknowledgement of receipt is received from the recipient. The sequence counter is incremented and the next value of the frame counter is established as the integer next larger than previous value of the frame counter which is congruent to the sequence counter modulo 256.

    摘要翻译: 一种通过无线信道从发送方向接收者发送消息的方法,所述消息包括序列计数器和帧计数器。 该方法包括在发送方建立序列计数器和帧计数器的初始值。 帧计数器和序列计数器的初始值被提供给接收者。 发送方发送压缩消息,包括序列计数器的值,而不是帧计数器,并监视收件人的收到确认。 当没有接收到确认时,发送方发送未压缩的消息,直到从收件人收到收到确认。 序列计数器递增,并且帧计数器的下一个值被建立为接下来大于帧计数器的先前值的整数,其与序列计数器模256一致。

    Password protocol for data communication system
    22.
    发明授权
    Password protocol for data communication system 有权
    数据通信系统密码协议

    公开(公告)号:US09002003B2

    公开(公告)日:2015-04-07

    申请号:US11947290

    申请日:2007-11-29

    摘要: A password protocol uses a multiple word password and provides prompts to a user allowing the user to select the next word in the password from a set of words. The selection of a word causes a client to perform a cryptographic operation and generate a new selection of words. After the password is completely entered, a key is generated from the words selected.

    摘要翻译: 密码协议使用多字密码,并向用户提供允许用户从一组单词中选择密码中的下一个单词的提示。 单词的选择使得客户端执行加密操作并生成新的单词选择。 密码完全输入后,会从所选择的单词中生成一个密钥。

    System and Method for Reducing Computations in an Implicit Certificate Scheme
    24.
    发明申请
    System and Method for Reducing Computations in an Implicit Certificate Scheme 有权
    在隐性证书制度中减少计算的系统和方法

    公开(公告)号:US20120221850A1

    公开(公告)日:2012-08-30

    申请号:US13037018

    申请日:2011-02-28

    申请人: Marinus Struik

    发明人: Marinus Struik

    IPC分类号: H04L9/00

    摘要: There are disclosed systems and methods for reducing the number of computations performed by a computing device constructing a public key from an implicit certificate associated with a certificate authority in an implicit certificate scheme. In one embodiment, the device first operates on the implicit certificate to derive an integer e. The device then derives a pair of integers (e1, e2) from the integer e, such that each of the pair of integers (e1, e2) has a bit length less than the bit length of the integer e, and such that the ratio of the pair of integers (e1, e2) corresponds to the integer e. The device then computes the public key by combining the integers e1 and e2 with public key contribution data derived from the implicit certificate and a public key of the certificate authority.

    摘要翻译: 已经公开了用于减少由隐式证书方案中与证书机构相关联的隐式证书构建公共密钥的计算设备执行的计算次数的系统和方法。 在一个实施例中,设备首先对隐式证书进行操作以导出整数e。 然后,该装置从整数e导出一对整数(e1,e2),使得该对整数(e1,e2)中的每一个具有小于整数e的位长度的位长度,并且使得比 的整数(e1,e2)对应于整数e。 然后,该设备通过将整数e1和e2与从隐式证书导出的公共密钥贡献数据和证书颁发机构的公开密钥相结合来计算公开密钥。

    LOCAL AREA NETWORK
    25.
    发明申请
    LOCAL AREA NETWORK 有权
    局域网

    公开(公告)号:US20090296939A1

    公开(公告)日:2009-12-03

    申请号:US12390030

    申请日:2009-02-20

    IPC分类号: H04L9/08 H04L9/00

    摘要: A method and system for distributed security for a plurality of devices in a communication network, each of the devices being responsible for generating, distributing and controlling its own keys for access to the communication network and using the keys to establish a trusted network, each device's membership to the communication network being checked periodically by other devices by using a challenge response protocol to establish which devices are allowed access to the communication network and the trusted network.

    摘要翻译: 一种用于通信网络中的多个设备的分布式安全性的方法和系统,每个设备负责生成,分发和控制其自己的密钥以访问通信网络并使用密钥建立可信网络,每个设备的 由通过使用质询响应协议来确定哪些设备被允许访问通信网络和可信网络的其他设备周期性地检查通信网络的成员资格。

    Trapdoor one-way functions on elliptic curves and their application to shorter signatures and asymmetric encryption
    26.
    发明申请
    Trapdoor one-way functions on elliptic curves and their application to shorter signatures and asymmetric encryption 有权
    椭圆曲线上的Trapdoor单向函数及其对较短签名和非对称加密的应用

    公开(公告)号:US20060140400A1

    公开(公告)日:2006-06-29

    申请号:US11272152

    申请日:2005-11-14

    IPC分类号: H04L9/30

    摘要: The present invention provides a new trapdoor one-way function. In a general sense, some quadratic algebraic integer z is used. One then finds a curve E and a rational map defining [z] on E. The rational map [z] is the trapdoor one-way function. A judicious selection of z will ensure that [z] can be efficiently computed, that it is difficult to invert, that determination of [z] from the rational functions defined by [z] is difficult, and knowledge of z allows one to invert [z] on a certain set of elliptic curve points. Every rational map is a composition of a translation and an endomorphism. The most secure part of the rational map is the endomorphism as the translation is easy to invert. If the problem of inverting the endomorphism and thus [z] is as hard as the discrete logarithm problem in E, then the size of the cryptographic group can be smaller than the group used for RSA trapdoor one-way functions.

    摘要翻译: 本发明提供了一种新的陷门单向功能。 在一般意义上,使用一些二次代数整数z。 然后找到曲线E和在E上定义[z]的有理图。有理图[z]是陷门单向函数。 z的明智选择将确保可以有效地计算[z],难以反转,[z]定义的[z]的确定是困难的,而z的知识允许反转[ z]在一组椭圆曲线点上。 每一个合理的地图都是一个翻译和一个同化的组合。 理性地图中最安全的部分是翻译易翻译的同化。 如果反转内生的问题,因此[z]与E中的离散对数问题一样困难,则密码组的大小可以小于用于RSA陷门单向函数的组的大小。

    Cryptographic method and apparatus
    28.
    发明授权
    Cryptographic method and apparatus 有权
    密码方法和装置

    公开(公告)号:US08707036B2

    公开(公告)日:2014-04-22

    申请号:US13275027

    申请日:2011-10-17

    申请人: Marinus Struik

    发明人: Marinus Struik

    IPC分类号: H04L29/06

    摘要: A method of formatting data for transmission to another party including the step of incorporating in the data a flag indicative of the absence of data for authentication of the sender. An authentication tag length is also included to permit variable length tags to be used.

    摘要翻译: 一种用于将数据格式化以传输给另一方的方法,包括在数据中包含指示不存在用于发送者的认证的数据的标志的步骤。 还包括认证标签长度以允许使用可变长度标签。

    System and method for reducing computations in an implicit certificate scheme
    30.
    发明授权
    System and method for reducing computations in an implicit certificate scheme 有权
    用于减少隐式证书方案中的计算的系统和方法

    公开(公告)号:US08572367B2

    公开(公告)日:2013-10-29

    申请号:US13037018

    申请日:2011-02-28

    申请人: Marinus Struik

    发明人: Marinus Struik

    IPC分类号: H04L29/06

    摘要: There are disclosed systems and methods for reducing the number of computations performed by a computing device constructing a public key from an implicit certificate associated with a certificate authority in an implicit certificate scheme. In one embodiment, the device first operates on the implicit certificate to derive an integer e. The device then derives a pair of integers (e1, e2) from the integer e, such that each of the pair of integers (e1, e2) has a bit length less than the bit length of the integer e, and such that the ratio of the pair of integers (e1, e2) corresponds to the integer e. The device then computes the public key by combining the integers e1 and e2 with public key contribution data derived from the implicit certificate and a public key of the certificate authority.

    摘要翻译: 已经公开了用于减少由隐式证书方案中与证书机构相关联的隐式证书构建公共密钥的计算设备执行的计算次数的系统和方法。 在一个实施例中,设备首先对隐式证书进行操作以导出整数e。 然后,该装置从整数e导出一对整数(e1,e2),使得该对整数(e1,e2)中的每一个具有小于整数e的位长度的位长度,并且使得比 的整数(e1,e2)对应于整数e。 然后,该设备通过将整数e1和e2与从隐式证书导出的公共密钥贡献数据和证书颁发机构的公开密钥相结合来计算公开密钥。