Hello there, these papers are useful for your work

using Merkel tree

thanks can u give me the reference article for merkle tree

Hi , you can use of trust methods, its a simple method with low overhead method

Hello there, these papers are useful for your work

thank u sir

https://www.researchgate.net/publication/316158581_Development_of_Protective_Scheme_against_Collaborative_Black_Hole_Attacks_in_Mobile_Ad_hoc_Networks

http://www.rroij.com/open-access/detection-and-isolation-of-black-hole-attackin-wireless-sensor-networks.php?aid=55578

Conference Paper Detection and Defense Technology of Blackhole Attacks in Wir...

Conference Paper A Study on Black Hole Attack in Wireless Sensor Networks