When it comes to Wireless Sensor Systems (WSNs), solid data security is exceptionally vital since sensor hubs can be assaulted in numerous ways. This exposition looks at how discrete arithmetic can be utilized to make compelling cryptographic methods that can be utilized to form WSNs more secure. We see into how thoughts from number hypothesis, combinatorics, and logarithmic structures can be utilized to make cryptographic strategies that work with the uncommon issues that WSNs have, like not having sufficient vitality or computing control, and issues with being able to develop. We propose modern encryption and key administration strategies that utilize discrete scientific strategies to improve the protection, security, and legitimacy of information sent inside WSNs whereas moreover making the leading utilize of computing control and assets. Execution measures like speed of encryption and decoding, energy use, and resistance to common assault courses are utilized to judge the recommended strategies. Our comes about appear that discrete arithmetic could be a solid establishment for making cryptographic strategies that progress information security whereas considering the impediments of WSNs. As a result of this consider, secure communication strategies in WSNs are getting way better. This makes a difference illuminate one of the greatest issues in organize security.