Power Adaptive Data Encryption for Energy-Efficient and Secure Communication in Solar-Powered Wireless Sensor Networks

Table 2

The characteristics of symmetric-key and public-key algorithm.

Algorithm	Reencryption on relaying	Encryption speed	Energy required for encoding	Security level
Public-key algorithm (ECIES)	X	Slow	More	Strong
Symmetric-key algorithm (AES)	O	Fast	Less	Weak