Digital Signature Method to Overcome Sniffing Attacks on LoRaWAN Network

LoRa or Long Range with LoRaWAN technology is a protocol for low-power wireless networks. The absence of an encryption process on the data payload becomes challenge network. When sending messages running inter devices, sniffing might occur, thereby reducing confidentiality aspect communication process. This paper optimized digital signature method to secure sent by network along Advanced Encryption Standard (AES) algorithm and Ed25519 algorithm. AES was used message encryption, while purposes. aim applying signatures in this verify that original not changed during transmission ensure confidentiality. addition security mechanisms network, such as decryption, verification results, has caused some overheads. overhead usage also analyzed feasible be implemented devices. Based experimental it found there increase size memory additional processing delay deployment overall implementing devices relatively low, making possible implement widely.