Due to their inherent openness. wireless sensor networks (WSNs) are vulnerable to eavesdropping attacks. Addressing the issue of secure Internet Key Exchange (IKE) in the absence of reliable third parties like CA/PKI (Certificate Authority/Public Key Infrastructure) in WSNs. a novel key synchronization method named NDPCS-KS is proposed in the paper. https://megavitamines.shop/product-category/kids-vitamins/