Following are the Security Requirements in Wireless Sensor Networks.
1. Confidentiality
Confidentiality requirement is needed to ensure that sensitive information is well protected and not revealed to unauthorized third parties.
2. Authentication
As in conventional systems, authentication techniques verify the identity of the participants in a communication, distinguishing in this way legitimate users from intruders.
In the case of sensor networks, it is essential for each sensor node and base station to have the ability to verify that the data received was really send by a trusted sender and not by an adversary that tricked legitimate nodes into accepting false data. If such a case happens and false data are supplied into the network, then the behavior of the network could not be predicted and most of times will not outcome as expected.
3. Integrity
Moving on to the integrity objective, there is the danger that information could be altered when exchanged over insecure networks. Lack of integrity could result in many problems since the consequences of using inaccurate information could be disastrous, for example for the healthcare sector where lives are endangered.
4. Freshness
One of the many attacks launched against sensor networks is the message replay attack where an adversary may capture messages exchanged between nodes and replay them later to cause confusion to the network. Data freshness objective ensures that messages are fresh, meaning that they obey in a message ordering and have not been reused. To achieve freshness, network protocols must be designed in a way to identify duplicate packets and discard them preventing potential mix-up.
5. Secure Management
Management is required in every system that is constituted from multi components and handles sensitive information. In the case of sensor networks, we need secure management on base station level;
No comments:
Post a Comment