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There are numerous cryptographic calculations like AES (Advanced Encryption Standard), SHA-256(Secure Hash Algorithm), and RSA/Elliptic Curve, Methods work for frameworks which have sensible force preparing and memory capacities yet not for implanted frameworks and sensor networks. Nowadays a colossal piece of the individuals is utilizing low force contraptions, sensor systems, clinical thought and (IoT)) for this, the conventional calculations are not upheld Lightweight cryptography techniques are proposed to defeat the issues of customary cryptographic strategies. This contains imperatives identified with physical size, preparing necessities, and memory limitations. These research paper investigations the different encryption methods and features the upsides and downsides of each approach.