公开(公告)号：US20160323844A1

公开(公告)日：2016-11-03

申请号：US15210341

申请日：2016-07-14

Applicant: Certicom Corp.

Inventor： Daniel Richard L. Brown

IPC: H04W64/00 ,  H04W4/20 ,  H04W4/02

CPC classification number: H04W64/006 ,  G08B5/36 ,  G08B13/1436 ,  G08B21/24 ,  H04W4/027 ,  H04W4/029 ,  H04W4/20 ,  H04W8/22 ,  H04W12/12 ,  H04W88/02

Abstract: A method for a device to determine that it has been lost is provided. The method comprises the device determining its current location, the device comparing its current location to a plurality of stored locations, and the device determining that it has been lost when its current location is a stored location that has been designated as a location where the device is unlikely to be located or is not a stored location that has been designated as a location where the device is likely to be located.

Abstract translation: 提供了一种用于确定其已经丢失的装置的方法。 该方法包括确定其当前位置的设备，该设备将其当前位置与多个存储位置进行比较，并且该设备确定当其当前位置是被指定为该设备的位置时的存储位置已丢失的设备 不太可能被定位或不被指定为设备可能位于的位置的存储位置。

公开(公告)号：US20150124961A1

公开(公告)日：2015-05-07

申请号：US14073379

申请日：2013-11-06

Applicant: Certicom Corp. ,  BlackBerry Limited

Inventor： Robert John Lambert ,  Daniel Richard L. Brown ,  Atsushi Yamada

IPC: H04L9/08 ,  H04L9/30

CPC classification number: H04L63/0428 ,  H04L9/0637 ,  H04L9/0841 ,  H04L9/0861 ,  H04L9/14 ,  H04L9/3066 ,  H04L9/3242 ,  H04L63/06

Abstract: In some aspects, an encryption method comprises encrypting a first portion of a message using a first secret key. The first secret key is generated based on the public key of an entity. A one-way function is used to generate a second secret key from the first secret key, and the first secret key is subsequently discarded. A second portion of the message is encrypted using the second secret key. The encrypted first portion of the message and the encrypted second portion of the message are provided to the entity.

Abstract translation: 在一些方面，加密方法包括使用第一秘密密钥加密消息的第一部分。 第一个秘密密钥是根据实体的公钥生成的。 单向函数用于从第一秘密密钥生成第二秘密密钥，并且随后丢弃第一秘密密钥。 消息的第二部分使用第二秘密密钥进行加密。 将消息的加密的第一部分和消息的加密的第二部分提供给实体。