公开(公告)号：US10187202B2

公开(公告)日：2019-01-22

申请号：US15789399

申请日：2017-10-20

Applicant: Certicom Corp.

Inventor： Matthew John Campagna ,  Daniel Richard L. Brown ,  Nevine Maurice Nassif Ebeid

IPC: H04M1/68 ,  H04L9/08 ,  H04L9/14 ,  H04W12/04 ,  H04L9/32 ,  H04L29/06 ,  H04W12/02 ,  H04W12/10

Abstract: Methods, systems, and computer programs for performing key agreement operations in a communication system are described. In some aspects, a wireless network operator receives a mobile device identifier and accesses a secret key associated with the mobile device. A message authentication code function is evaluated based on the secret key to produce an output value. A session key and a challenge value are obtained based on the output value. In some aspects, a mobile device accesses a secret key in response to receiving the challenge value from the wireless network operator. A message authentication code function is evaluated based on the secret key to produce an output value. A response value and a session key are obtained based on the output value. The response value is transmitted to the wireless network operator.

公开(公告)号：US09407444B2

公开(公告)日：2016-08-02

申请号：US14220983

申请日：2014-03-20

Applicant: BlackBerry Limited ,  Certicom Corp.

Inventor： Michael Eoin Buckley ,  Robert John Lambert ,  Nevine Maurice Nassif Ebeid

IPC: H04L29/06 ,  H04L9/32 ,  H04W12/10 ,  H04W12/12

CPC classification number: H04L9/3252 ,  H04L9/14 ,  H04L9/30 ,  H04L9/3242 ,  H04L9/3247 ,  H04L9/3263 ,  H04L63/0428 ,  H04L63/06 ,  H04L63/126 ,  H04L63/14 ,  H04W4/12 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W12/12

Abstract: There is provided a method for secure communications. The method includes a computing device receiving a notification comprising a message, a counter value, a signature signed by a signer and based on the message and the counter value, and an indication of the signer. The device obtains a current counter value based on an identity of the signer, checks the signature and compares the counter value with the current counter value; and, if the counter comparison and the signature checking is successful, accepting the message.

Abstract translation: 提供了一种用于安全通信的方法。 该方法包括接收包括消息，计数器值，由签名者签名并且基于消息和计数器值签名的签名以及签名者的指示的通知的计算设备。 设备基于签名人的身份获取当前计数器值，检查签名并将计数器值与当前计数器值进行比较; 并且如果计数器比较和签名检查成功，则接受该消息。

公开(公告)号：US08948694B2

公开(公告)日：2015-02-03

申请号：US13693566

申请日：2012-12-04

Applicant: Research In Motion Limited ,  Certicom Corp.

Inventor： Nevine Maurice Nassif Ebeid ,  Yevgeny Bondar ,  Shirook M. Ali

IPC: H04B5/00 ,  H01F38/14

CPC classification number: H01F38/14 ,  H01F27/365 ,  H04B5/0031

Abstract: A shielding article is provided, for shielding a device enabled for proximity-based communications, for example, NFC-enabled devices. The shielding article comprises a shielding component configured to prevent operation of an antenna of the device used for conducting proximity-based communications, without preventing operation of at least one other antenna of the device when the shielding component is aligned with the antenna used for conducting proximity-based communications. The shielding article may be separate from, or included in an accessory or carrying article and may be fixed or detachably coupled thereto.

Abstract translation: 提供了屏蔽物品，用于屏蔽能够进行基于接近通信的设备，例如具有NFC功能的设备。 屏蔽制品包括屏蔽部件，其被配置为防止用于进行基于接近通信的装置的天线的操作，而不会在屏蔽部件与用于进行接近的天线对准时防止装置的至少一个其他天线的操作 的通信。 屏蔽制品可以与附件或承载制品分离或包括在附件或承载物品中，并且可以固定或可拆卸地联接到其上。