Question

.What adversaries does a man face in the absence of communication?​

Answer 1

Answer:

Future trends

Security is an important concern in emergency DTNs. Malicious adversaries could delay the victim rescue process, or sensitive information about victims could be leaked. Solutions such as encryption increase energy consumption both at the central processing unit (CPU) as well as the network layers. The contact time in DTNs is limited; encrypting data could increase the overhead and decrease goodput, affecting the DTN’s performance. The Bundle Security Protocol, recently standardized as RFC 6257, provides a good start for researchers who want to investigate this issue.