公开(公告)号：US08458474B2

公开(公告)日：2013-06-04

申请号：US12600304

申请日：2008-05-21

Applicant: Matthew Robshaw ,  Henri Gilbert

Inventor： Matthew Robshaw ,  Henri Gilbert

IPC: H06F15/16

CPC classification number: H04L9/3271 ,  H04L2209/805

Abstract: A method of authenticating an entity by a verification entity, said entities sharing a pair of secret keys X and Y which are n×m (n, m>i) binary matrices. The method may be applied to cryptographic protocols for authenticating electronic chips at a very low cost.

Abstract translation: 一种由验证实体验证实体的方法，所述实体共享一对秘密密钥X和Y，它们是n×m（n，m> i）个二进制矩阵。 该方法可以以非常低的成本应用于用于认证电子芯片的密码协议。

公开(公告)号：US20100228986A1

公开(公告)日：2010-09-09

申请号：US12741638

申请日：2008-11-21

Applicant: Matthew Robshaw ,  Henri Gilbert

Inventor： Matthew Robshaw ,  Henri Gilbert

IPC: G06F21/00 ,  G06F7/04

CPC classification number: H04L9/3271 ,  G06F21/10 ,  G06F21/445 ,  G06F2221/2103 ,  G06F2221/2129 ,  G11B20/00086 ,  G11B20/00876 ,  H04L9/0827 ,  H04L2209/603 ,  H04L2209/805

Abstract: An authentication method of a prover device by a verifier device by means of cryptographic coupons is provided for, wherein a coupon comprises, on one hand, a pseudo-random number ri, where i is an index for labeling the coupon, and, on the other hand, a reduced-coupon xi such that xi=ƒ(ri), where ƒ is a predetermined one-way function, comprising at least the following steps: the verifier device sends a challenge consisting of a random value c to the prover device; the prover device sends to the verifier device a response y calculated by using a pseudo-random number ri, said challenge c, and a secret key s belonging to the prover device; and the verifier device checks the validity of said response y based on the challenge c, the reduced-coupon xi corresponding to said pseudo-random number ri, and a public key V corresponding to said secret key s. According to the invention, the verifier device receives said reduced-coupon xi from a source external to the prover device.

Abstract translation: 提供了一种通过加密优惠券的验证器装置的验证器装置的认证方法，其中优惠券一方面包括伪随机数ri，其中i是用于标记优惠券的索引，并且在 另一方面，减价券xi使得xi =ƒ（ri），其中ƒ是预定的单向功能，至少包括以下步骤：验证者设备将由随机值c组成的挑战发送到证明者设备 ; 证明器装置通过使用伪随机数ri，所述挑战c和属于证明器装置的秘密密钥s向验证装置发送响应y; 并且验证器设备基于挑战c，对应于所述伪随机数ri的减价券xi和对应于所述秘密密钥s的公钥V来检查所述响应y的有效性。 根据本发明，验证器装置从证明器装置外部的源接收所述减价券xi。

公开(公告)号：US06240184B1

公开(公告)日：2001-05-29

申请号：US09145845

申请日：1998-09-02

Applicant: Dung Huynh ,  Matthew Robshaw ,  Ari Juels ,  Burton Kaliski, Jr.

Inventor： Dung Huynh ,  Matthew Robshaw ,  Ari Juels ,  Burton Kaliski, Jr.

IPC: G06F1214

CPC classification number: G06F21/31

Abstract: A system, method, and data structure provide for securely synchronizing passwords and/or other information between systems. The password-related information is stored in the systems in a secure manner, and a user or some other, external agent participates actively in the transmission of a new password between systems. A password update file is communicated or shared between systems to synchronize passwords.

Abstract translation: 系统，方法和数据结构提供在系统之间安全地同步密码和/或其他信息。 密码相关信息以安全的方式存储在系统中，并且用户或其他外部代理主动参与在系统之间传输新密码。 在系统之间传送或共享密码更新文件以同步密码。

公开(公告)号：US09008624B2

公开(公告)日：2015-04-14

申请号：US13977872

申请日：2011-12-22

Applicant: Benoit Michau ,  Matthew Robshaw

Inventor： Benoit Michau ,  Matthew Robshaw

IPC: H04M1/66 ,  H04W12/06 ,  H04L9/32 ,  H04W88/02

CPC classification number: H04W12/06 ,  H04L9/321 ,  H04L9/3247 ,  H04L9/3271 ,  H04L2209/805 ,  H04W88/02

Abstract: A method is provided for authenticating a first entity and a second entity at a third entity. The first and third entities share a first secret key, and the second and third entities share a second secret key. The method includes steps of: dispatching by the third entity to the first entity of a challenge, calculation by the first entity, using the first secret key, of an authentication value; dispatching by the first entity to the second entity the authentication value, calculation by the second entity, using the second secret key, of an authentication response; dispatching by the second entity to the third entity of the authentication response; calculation by the third entity of an expected authentication response; and comparison of the authentication response received with the expected calculated authentication response.

Abstract translation: 提供了一种用于在第三实体处认证第一实体和第二实体的方法。 第一和第三实体共享第一秘密密钥，第二和第三实体共享第二秘密密钥。 该方法包括以下步骤：由第三实体向第一实体发送质询，由第一实体使用第一秘密密钥计算认证值; 由第一实体向第二实体发送认证值，由第二实体使用第二秘密密钥计算认证响应; 由第二实体向第三实体发送认证响应; 由第三实体计算预期认证响应; 以及接收的认证响应与预期计算的认证响应的比较。

公开(公告)号：US20140057601A1

公开(公告)日：2014-02-27

申请号：US13977872

申请日：2011-12-22

Applicant: Benoit Michau ,  Matthew Robshaw

Inventor： Benoit Michau ,  Matthew Robshaw

IPC: H04W12/06

CPC classification number: H04W12/06 ,  H04L9/321 ,  H04L9/3247 ,  H04L9/3271 ,  H04L2209/805 ,  H04W88/02

Abstract: A method is provided for authenticating a first entity and a second entity at a third entity. The first and third entities share a first secret key, and the second and third entities share a second secret key. The method includes steps of: dispatching by the third entity to the first entity of a challenge, calculation by the first entity, using the first secret key, of an authentication value; dispatching by the first entity to the second entity the authentication value, calculation by the second entity, using the second secret key, of an authentication response; dispatching by the second entity to the third entity of the authentication response; calculation by the third entity of an expected authentication response; and comparison of the authentication response received with the expected calculated authentication response.

Abstract translation: 提供了一种用于在第三实体处认证第一实体和第二实体的方法。 第一和第三实体共享第一秘密密钥，第二和第三实体共享第二秘密密钥。 该方法包括以下步骤：由第三实体向第一实体发送质询，由第一实体使用第一秘密密钥计算认证值; 由第一实体向第二实体发送认证值，由第二实体使用第二秘密密钥计算认证响应; 由第二实体向第三实体发送认证响应; 由第三实体计算预期认证响应; 以及接收的认证响应与预期计算的认证响应的比较。