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IoT). The result shows that the LCT IoT technique is efficient compared to the existing
          lightweight  algorithms  like  Simon  and  Speck  in  terms  of  memory  consumption,  time
          consumption,  throughput,  and  the  avalanche  effect.  The  LCT  IoT  is  evaluated  by
          performing  cryptanalysis  by  avalanche  effect,  which  is  relatively  good.  This  research
          concludes that LCT IoT works well on differential cryptanalysis and is also secure against
          various attacks.

          Key  words:  Internet  of  Things  (IoT),  Security,  Lightweight  Cryptography  (LWC),  Health
          Monitor,  Symmetric,  Asymmetric,  Cryptanalysis,  Block  Cipher,  Stream  cipher.  Wireless
          sensor network.























































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