公开(公告)号：US08706081B1

公开(公告)日：2014-04-22

申请号：US13717904

申请日：2012-12-18

Applicant: Google Inc.

Inventor： Ismail Cem Paya ,  Shane Alexander Farmer ,  Robert Tsai

IPC: H04M1/66

CPC classification number: H04M1/7253 ,  G06Q20/3227 ,  G06Q20/3278 ,  H04L63/0227 ,  H04M15/93 ,  H04M17/103 ,  H04W4/80 ,  H04W12/08

Abstract: A method and system for packet inspection in a near field communication (NFC) controller for secure element (SE) protection are described. In a communication device, the NFC controller can receive filtering rules that correspond to security for an applet in the SE. The NFC controller can also receive a packet with commands or instructions for the SE. The NFC controller can inspect the contents of the packet based on the filtering rules and determine whether to communicate the packet to the SE. The packet filtering performed by the NFC controller can also be based on whether the packet was received through an interface with an operating system in the communication device or through an interface with an NFC antenna. The filtering rules can be removed or disabled when an update for the applet is received and installed in the SE.

Abstract translation: 描述了用于安全元件（SE）保护的近场通信（NFC）控制器中的分组检查的方法和系统。 在通信设备中，NFC控制器可以接收与SE中的小应用程序的安全性相对应的过滤规则。 NFC控制器还可以接收具有用于SE的命令或指令的分组。 NFC控制器可以根据过滤规则检查数据包的内容，并确定是否将数据包传送给SE。 由NFC控制器执行的分组过滤也可以基于通过与通信设备中的操作系统的接口或通过与NFC天线的接口来接收分组。 当小程序的更新被接收并安装在SE中时，可以删除或禁用过滤规则。