IoT-Based Autonomous Pay-As-You-Go Payment System with the Contract Wallet

<table class="algorithm-group"><tr><td><table class="algorithm" id="alg2"><tr><td colspan="2"> <b>Input:</b> user EOA, IoT EOA, address of the control contract, company EOA, and user signature</td></tr><tr><td colspan="2"> <b>Output:</b> none</td></tr><tr><td>(1)</td><td>Generate a hash (keccak256) of the user EOA, company EOA, and control contract address, concatenated in that order</td></tr><tr><td>(2)</td><td>Decrypt the public key and EOA of the signer from the hash and user signature using ECDSA</td></tr><tr><td>(3)</td><td><b>if</b> decrypted EOA = = user EOA <b>then</b></td></tr><tr><td>(4)</td><td> Tie the IoT EOA to the control contracts and company EOA and insert it into the IoT registration list</td></tr><tr><td>(5)</td><td> Emit the event</td></tr><tr><td>(6)</td><td><b>else</b></td></tr><tr><td>(7)</td><td> Error handling</td></tr><tr><td>(8)</td><td><b>end if</b></td></tr></table></td></tr></table>

Security and Communication Networks

alg2

Algorithm 2

Algorithm 2: IoT-Based Autonomous Pay-As-You-Go Payment System with the Contract Wallet 