Comparative Study on Various Authentication Protocols in Wireless Sensor Networks

Table 3

Comparison of existing and lightweight authentication schemes.

Authentication protocols	Source authentication	Data integrity	Immediate authentication	Time synchronization	Communication overhead	Computation overhead	Cryptographic method	DoS Resistance	Robustness to packet loss	Message Cost
TESLA	Yes	Yes	No	Yes	Low	Low	MD5	No	Yes	2
μTESLA	Yes	Yes	No	Yes	Low	Low	MD5	No	Yes	3
Multilevel μTESLA	Yes	Yes	No	Yes	Low	Low	MD5	Yes	Yes	3
BABRA	Yes	Yes	No	No	Low	Low	MD5	Yes	Yes	3
Unbounded key chains	Yes	Yes	No	Yes	Low	Medium	SHA-1	No	Yes	2
L-TESLA	Yes	Yes	No	Yes	Low	Low	MD5	No	Yes	3
X-TESLA	Yes	Yes	No	Yes	Low	Low	MD5	Yes	Yes	3
TESLA++	Yes	Yes	No	Yes	Low	Low	MD5	Yes	Yes	2
RPT	Yes	Yes	No	Yes	Low	Low	MD5	No	Yes	3
Hierarchical key chains	Yes	Yes	No	Yes	Very Low	Very Low	SHA-1	No	Yes	1
Lightweight scheme	Yes	Yes	No	Yes	Very Low	Very Low	SHA-1	No	Yes	1