From: Energy-Efficient Source Authentication for Secure Group Communication with Low-Powered Smart Devices in Hybrid Wireless/Satellite Networks
Algorithm
Key size (bits)
Sign (mJ)
Verify (mJ)
RSA
1024
546.50
15.97
DSA
313.60
338.02
ECDSA
163
134.20
192.23
HMAC
1.16 (J/B)