Lightweight Cryptographic Algorithms for Guessing Attack Protection in Complex Internet of Things Applications

Table 7

Comparative analysis of symmetric, asymmetric, and hash cryptography based on the various parameters [25, 26].

Parameters	Symmetric	Asymmetric	Hash
Block size	Fixed	—	Variable
Key	Required	Required	Required
Resource consumption	Low	High	Low
Computation time complexity	Low	High	Low
Application	Encryption	To create secure channel/authentication	Authentication