公开(公告)号：US20160352706A1

公开(公告)日：2016-12-01

申请号：US14724315

申请日：2015-05-28

Applicant: NXP B.V.

Inventor： Michael Michel Patrick PEETERS ,  Rudi VERSLEGERS ,  Dimitri WARNEZ

IPC: H04L29/06

CPC classification number: H04L63/061 ,  H04L9/0861 ,  H04L63/062

Abstract: Various embodiments relate to a method, device, and non-transitory medium including: determining a master key value for use in secure communications with a different device, wherein the master key value is used as a master key; deriving at least one session key using the master key; generating a new master key value based on the master key; deleting the current master key value; and using the new master key value as the master key.

Abstract translation: 各种实施例涉及一种方法，设备和非暂时介质，包括：确定用于与不同设备的安全通信中的主密钥值，其中所述主密钥值用作主密钥; 使用所述主密钥导出至少一个会话密钥; 基于主密钥生成新的主密钥值; 删除当前主键值; 并使用新的主密钥值作为主密钥。

公开(公告)号：US20200320510A1

公开(公告)日：2020-10-08

申请号：US16828275

申请日：2020-03-24

Applicant: NXP B.V.

Inventor： Dimitri WARNEZ

IPC: G06Q20/34 ,  H04W4/80 ,  G06Q20/32

Abstract: In accordance with a first aspect of the present disclosure, a method is conceived for providing a digital representation of a transaction card in a mobile device, comprising: detecting, by a near field communication unit of said mobile device, that the transaction card is in proximity of the mobile device; upon or after said detecting, performing, by a processing unit of said mobile device, the following steps: retrieving the digital representation of the transaction card from a digitization server; loading the digital representation of the transaction card into a memory of the mobile device; activating the digital representation of the transaction card for a predefined validity period; invalidating the digital representation of the transaction card if no successful near field communication transaction has been performed within said validity period. In accordance with other aspects of the present disclosure, a corresponding computer program and a corresponding mobile device are provided.