Date Code 20050615
Instruction Manual
SEL-3022 Transceiver
Wireless Operator Interface Security
The SEL Security Application
C.15
Cryptographic Manual—Do Not Copy
without direct knowledge of the correct password value. This remains true even if
someone attempts a connection through use of a stolen PC with the correct wireless
authentication and encryption keys programmed into the device image.
SEL-3022/SEL-5809 Wireless Interface Session
Authentication Dialog
To begin a wireless operator interface session, the PC or PDA must authenticate with
the SEL-3022 to prove that it has been programmed with the exact values of the
expected authentication key and encryption key, and that you entered the correct
password.
provides an overview of the session authentication dialog
between a maintenance PC with the SEL-5809 Settings Software installed and an
SEL-3022 device. Each frame of this five-frame dialog is protected by the encryption
and authentication methods described previously. Because of these protection methods,
the data in each frame are secured by strong AES encryption and the SEL-5809
Settings Software, and the SEL-3022 can verify that an authorized device (i.e., a device
with direct knowledge of the encryption key and authentication key values) sent every
frame.
Figure C.5
Wireless Interface Session Authentication Dialog
Maintenance PC With
SEL-5809 Settings Software
and Wireless Access Keys
SEL-3022
(2) First Challenge
(5) Key ACK and Sec
ond Challenge
Response
(1) Initial Session R
equest
(4) Key Transport
and Second Challenge
(3) First Challenge R
esponse With P
assword
Preliminary Copy
Summary of Contents for SEL-3022
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