公开(公告)号：US11234125B2

公开(公告)日：2022-01-25

申请号：US16536489

申请日：2019-08-09

Applicant: Rosemount Inc.

Inventor： Matthew M. Then

IPC: G06F21/00 ,  H04W12/06 ,  H04L29/06 ,  H04W12/041 ,  H04W12/0431

Abstract: A method for authenticating a user of a handheld field maintenance tool is provided. The method includes moving the handheld field maintenance tool into a proximity of a field device. The field device receives a primary key. The field device generates a secondary key and transmits the secondary key to a remote system. The remote system transmits the secondary key to the user of the handheld field maintenance tool. The field device receives the secondary key. The field device authenticates the user of the handheld field maintenance tool.

公开(公告)号：US20210044973A1

公开(公告)日：2021-02-11

申请号：US16536489

申请日：2019-08-09

Applicant: Rosemount Inc.

Inventor： Matthew M. Then

IPC: H04W12/06 ,  H04L29/06 ,  H04W12/04

Abstract: A method for authenticating a user of a handheld field maintenance tool is provided. The method includes moving the handheld field maintenance tool into a proximity of a field device. The field device receives a primary key. The field device generates a secondary key and transmits the secondary key to a remote system. The remote system transmits the secondary key to the user of the handheld field maintenance tool. The field device receives the secondary key. The field device authenticates the user of the handheld field maintenance tool.