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公开(公告)号：US08312283B2
公开(公告)日：2012-11-13
申请号：US13079116
申请日：2011-04-04
IPC分类号： H04L9/00
CPC分类号： H04L9/32 , G06F7/725 , H04L9/0838 , H04L9/3066 , H04L9/3247
摘要： A public key encryption system exchanges information between a pair of correspondents. The recipient performs computations on the received data to recover the transmitted data or verify the identity of the sender. The data transferred includes supplementary information that relates to intermediate steps in the computations performed by the recipient.
摘要翻译： 公开密钥加密系统在一对记者之间交换信息。 收件人对接收到的数据执行计算，以恢复发送的数据或验证发送者的身份。 传送的数据包括与由接收者执行的计算中的中间步骤有关的补充信息。
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公开(公告)号：US08229113B2
公开(公告)日：2012-07-24
申请号：US12458468
申请日：2009-07-13
IPC分类号： H04L9/00
CPC分类号： H04L9/0844 , G06F7/725 , H04L9/0841 , H04L9/3066 , H04L9/3252
摘要： A method of determining the integrity of a message exchanged between a pair of correspondents. The message is secured by embodying the message in a function of a public key derived from a private key selected by one of the correspondents. The method comprises first obtaining the public key. The public key is then subjected to at least one mathematical test to determine whether the public key satisfies predefined mathematical characteristics. Messages utilizing the public key are accepted if the public key satisfies the predefined mathematical characteristics.
摘要翻译： 一种确定在一对记者之间交换的消息的完整性的方法。 通过将消息体现在由其中一个记者选择的私钥派生的公共密钥的功能中来保护消息。 该方法包括首先获得公钥。 然后对公钥进行至少一个数学测试，以确定公钥是否满足预定义的数学特性。 如果公钥满足预定义的数学特征，则接受使用公钥的消息。
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公开(公告)号：US20110231664A1
公开(公告)日：2011-09-22
申请号：US13079116
申请日：2011-04-04
IPC分类号： H04L9/32
CPC分类号： H04L9/32 , G06F7/725 , H04L9/0838 , H04L9/3066 , H04L9/3247
摘要： A public key encryption system exchanges information between a pair of correspondents. The recipient performs computations on the received data to recover the transmitted data or verify the identity of the sender. The data transferred includes supplementary information that relates to intermediate steps in the computations performed by the recipient.
摘要翻译： 公开密钥加密系统在一对记者之间交换信息。 收件人对接收到的数据执行计算，以恢复发送的数据或验证发送者的身份。 传送的数据包括与由接收者执行的计算中的中间步骤有关的补充信息。
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公开(公告)号：US07930549B2
公开(公告)日：2011-04-19
申请号：US12216926
申请日：2008-07-11
IPC分类号： H04L9/00
CPC分类号： H04L9/32 , G06F7/725 , H04L9/0838 , H04L9/3066 , H04L9/3247
摘要： A public key encryption system exchanges information between a pair of correspondents. The recipient performs computations on the received data to recover the transmitted data or verify the identity of the sender. The data transferred includes supplementary information that relates to intermediate steps in the computations performed by the recipient.
摘要翻译： 公开密钥加密系统在一对记者之间交换信息。 收件人对接收到的数据执行计算，以恢复发送的数据或验证发送者的身份。 传送的数据包括与由接收者执行的计算中的中间步骤有关的补充信息。
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公开(公告)号：US07036015B2
公开(公告)日：2006-04-25
申请号：US10056060
申请日：2002-01-28
IPC分类号： H04L9/00
CPC分类号： H04L9/3066 , G06F7/725 , H04L9/3247 , H04L2209/56
摘要： A digital signature verification protocol utilises a pair of signature components incorporating a pair of private keys, one of which is a long term key and the other of which is a short term key.The long term key is applied to one of the signature components to reveal the short term key.The short tern key is then used to compute a value of a signature component contained in the signature. If the computed value and received values agree then authenticity is verified.
摘要翻译： 数字签名验证协议使用一对签名组件，其包含一对私钥，其中一个是长期密钥，另一个是短期密钥。 长期密钥应用于其中一个签名组件以显示短期密钥。 然后，使用短tern密钥来计算签名中包含的签名组件的值。 如果计算值和接收值一致，则验证真实性。
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公开(公告)号：US06446207B1
公开(公告)日：2002-09-03
申请号：US09015338
申请日：1998-01-29
IPC分类号： H04L930
CPC分类号： H04L9/3066 , G06F7/725 , H04L9/3247 , H04L2209/56
摘要： A digital signature verification protocol utilises a pair of signature components incorporating a pair of private keys, one of which is a long term key and the other of which is a short term key. The long term key is applied to one of the signature components to reveal the short term key. The short term key is then used to compute a value of a signature component contained in the signature. If the computed value and received values agree then authenticity is verified.
摘要翻译： 数字签名验证协议使用一对签名组件，其包含一对私钥，其中一个是长期密钥，另一个是短期密钥。长期密钥被应用于签名组件之一 揭示短期密钥。然后使用短期密钥来计算签名中包含的签名组件的值。 如果计算值和接收值一致，则验证真实性。
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公开(公告)号：US09455832B2
公开(公告)日：2016-09-27
申请号：US12230799
申请日：2008-09-04
CPC分类号： H04L9/3066 , H04L9/3242 , H04L9/3252
摘要： A portion of the signed message in an ECPVS is kept truly confidential by dividing the message being signed into at least three parts, wherein one portion is visible, another portion is recoverable by any entity and carries the necessary redundancy for verification, and at least one additional portion is kept confidential. The additional portion is kept confidential by encrypting such portion using a key generated from information specific to that verifying entity. In this way, any entity with access to the signer's public key can verify the signature by checking for a specific characteristic, such as a certain amount of redundancy in the one recovered portion, but cannot recover the confidential portion, only the specific entity can do so. Message recovery is also provided in an elliptic curve signature using a modification of the well analyzed ECDSA signing equation instead of, e.g. the Schnorr equation used in traditional PV signature schemes.
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公开(公告)号：US08964971B2
公开(公告)日：2015-02-24
申请号：US12171398
申请日：2008-07-11
申请人： Scott A. Vanstone , Daniel R. Brown
发明人： Scott A. Vanstone , Daniel R. Brown
CPC分类号： H04L9/3073 , G06F17/2264 , H04L2209/16 , H04L2209/30 , H04L2209/608
摘要： A method of representing crytographic values in text form is described. The text representation is formed from words selected from a vocabulary, which may include a collection of pseudowords. The text representations can be further transformed to a paragraph in an apparently grammatically correct form.
摘要翻译： 描述了以文本形式表示crytographic值的方法。 文本表示由从词汇中选择的词形成，其可以包括伪字集合。 文本表示可以进一步转换为一个明显的语法正确形式的段落。
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公开(公告)号：US08938617B2
公开(公告)日：2015-01-20
申请号：US13618358
申请日：2012-09-14
CPC分类号： H04L9/3236 , H04L9/002 , H04L9/3247 , H04L63/123 , H04L2209/04 , H04L2209/08 , H04L2209/20
摘要： A cryptosystem prevents replay attacks within existing authentication protocols, susceptible to such attacks but containing a random component, without requiring modification to said protocols. The entity charged with authentication maintains a list of previously used bit patterns, extracted from a portion of the authentication message connected to the random component. If the bit pattern has been seen before, the message is rejected; if the bit pattern has not been seen before, the bit pattern is added to the stored list and the message is accepted.
摘要翻译： 密码系统防止现有认证协议中的重放攻击，容易受到这种攻击但包含随机组件，而不需要修改所述协议。 充电认证的实体维护从连接到随机组件的认证消息的一部分中提取的先前使用的位模式的列表。 如果之前已经看到位模式，则消息被拒绝; 如果以前没有看到位模式，则将位模式添加到存储的列表中，并且该消息被接受。
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公开(公告)号：US08806197B2
公开(公告)日：2014-08-12
申请号：US13478288
申请日：2012-05-23
申请人： Marinus Struik , Daniel R. Brown , Scott A. Vanstone , Robert P. Gallant , Adrian Antipa , Robert J. Lambert
发明人： Marinus Struik , Daniel R. Brown , Scott A. Vanstone , Robert P. Gallant , Adrian Antipa , Robert J. Lambert
IPC分类号： H04L29/06
CPC分类号： H04L9/3066 , G06F7/725 , H04L9/30 , H04L9/3252
摘要： Accelerated computation of combinations of group operations in a finite field is provided by arranging for at least one of the operands to have a relatively small bit length. In a elliptic curve group, verification that a value representative of a point R corresponds the sum of two other points uG and vG is obtained by deriving integers w,z of reduced bit length and so that v=w/z. The verification equality R=uG+vQ may then be computed as −zR+(uz mod n) G+wQ=O with z and w of reduced bit length. This is beneficial in digital signature verification where increased verification can be attained.
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