A Regulation-Based Security Evaluation Method for Data Link in Wireless Sensor Network

Table 2

Description of defense methods against threats.

ID	Defense method	Used against Threat (§IV.A)
A	Sequence numbers in each message	1; 2; 3; 4
B	Time Stamp of the sending time	1; 4; 6
C	Timeout for reception windows	2; 6
D	Source and destination identifiers in each message	3
E	Feedback messages (ack messages)	3; 7; 9
F	Identification procedure about the members identity before a single transmission or at system boot	3; 7
G	Safety Code in messages (es.CRC)	5
H	Cryptographic techniques	5; 7
I	Redundancy, that is, message periodic replication	1; 2; 3; 4; 5
J	Membership control: members monitor each other to discover malfunctions. Exception code handling is performed in positive case.	8
K	Atomic Broadcast: transmissions are broadcasted to all target nodes in the same order	8
L	Time-Triggered architecture: messages are scheduled also with a time-priority handler	1; 2; 4; 5; 8; 6; 10
M	Bus Guardian: access to the transmission channel is controlled by a hardware that avoids simultaneous access.	1
N	Prioritization of messages: prioritization of messages based on their content-type	8; 6
O	Inhibit messages: transmitted messages can’t be re-transmitted before a timeout period	1; 6; 8
P	Hamming Distance scheme application to node address and message identifiers	3; 7