Stollmann BlueMod+B20 - Page 14

BlueMod+B20/BT2.1
User Guide
Release r03 www.stollmann.de Page 14 of 38
Remote
device
B20
Display only
Display Yes/No
Keyboard only
No input no output
Display only
ATS406=0
Just Works
(numeric comparison, both
automatic confirmation)
No MITM protection
Numeric comparison
(both displayed, one automatic
confirm)
No MITM protection
Passkey entry
(one display, one input)
MITM protection
SSPPIN <BT addr> <passkey>
Just Works
(Numeric comparison, both
automatic confirmation)
No MITM protection
Display Yes/No
ATS406=1
Numeric comparison
(both displayed, one automatic
confirm)
No MITM protection
Numeric comparison
(both displayed, both confirm)
MITM protection
SSPCONF <BT addr> <passkey> ?
AT+SSPCONF <BT addr>, 1
Passkey entry
(one display, one input)
MITM protection
SSPPIN <BT addr> <passkey>
Just Works
(numeric comparison, both
automatic confirmation)
No MITM protection
Keyboard only
ATS406=2
Passkey entry
(one display, one input)
MITM protection
SSPPIN <BT addr> ?
AT+SSPPIN <BT addr>,<passkey>
Passkey entry
(one display, one input)
MITM protection
SSPPIN <BT addr> ?
AT+SSPPIN <BT addr>,<passkey>
Passkey entry (both input)
MITM protection
SSPPIN <BT addr> ?
AT+SSPPIN <BT addr>,<passkey>
Just Works
(numeric comparison, both
automatic confirmation)
No MITM protection
No input
no output
ATS406=3
Just Works
(numeric comparison, both
automatic confirmation)
No MITM protection
Just Works
(numeric comparison, both
automatic confirmation)
No MITM protection
Just Works
(numeric comparison, both
automatic confirmation)
No MITM protection
Just Works
(numeric comparison, both
automatic confirmation)
No MITM protection
Green color: B20 output message SSPPIN <BT addr> ? (example)
Blue color: B20 input request : AT+SSPPIN <BT addr> <passkey> (example)