IEEE/ICACT20220037 Slide.16        [Big Slide]       Oral Presentation
We have used the tunnel mode of ESP encapsulation to encrypt the original IP header of the edge routers and thus the attacker will not be able to see the original IP. This also adds ESP header and EPS trailer to authenticate and encrypt the rest of the packet. We have maintained the DTLS with UDP which is used by the Hyperledger fabric for encrypting blockchain data. By adding another layer of encryption using ESP, the original IP header is also encrypted which will reduce the attacks on any internal IPs.

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