A Comparative Analysis of the Computation Cost and Energy Consumption of Relevant Curves of ECC Presented in Literature

With the Internet of Things (IoT) becoming expo-nentially more prevalent, need for lightweight cryptography functions increases simultaneously. Namely, IoT end devices are mostly limited by their resource-constrained capabilities and therefore cannot rely on heavyweight cryptographic algorithms such as Rivest-Shamir-Adleman (RSA) or Diffie-Hellman (DH) security. Elliptic Curve Cryptography (ECC) offers a alternative being based mathematical prob-lem named Discrete Logarithm Problem (ECDLP) which is not known to be solvable in sub-exponential time. Within field ECC, many different curve types exist following various standards this protocol. In paper, energy consumption time key generation, encryption, decryption measured within ElGamal protocol using ECC curves. To measure this, Raspberry Pi 4B Personal Computer used conclude disproval hypothesis that Twisted Edwards performs most efficient achieve its security strength. Brainpool curves function benchmark, after Short Weierstrass follow. Moreover, it concluded performance pattern both data processors providers equal each other all message sizes.