Security Frameworks for Wireless Sensor Networks-Review

A priority for WSN in ubiquitous environment: multimedia security requirements

“…William R. Claycomb et al [5] presented a security policy for WSNs that enables sensor nodes to make critical security decisions about how they share information with others. Gaurav Haarmaa et al [26] reviewed and classified a variety of cryptographic techniques used in existing network system (see Fig. 6) and suggested a requirement of cryptographic techniques appropriated to WSNs.…”

“…6) and suggested a requirement of cryptographic techniques appropriated to WSNs. However, these studies [5,26] are just focused on the security of the data transmission between sensor nodes. John Paul et al reviewed security factors on the basis of network security factors in their study [31] as follows.…”

“…Since typically shared keys need to be changed overtime, it takes time for new shared keys to be Fig. 6 Classification of cryptographic techniques [26] propagated to the entire network. Therefore, the adversary can use a replay attack easily and disrupt the normal work of the sensor, when the sensor is unaware of the new key change time.…”

“…Gaurav Sharmma et al suggested security requirements for the overall WSN systems in their study [26] as follows.…”

“…Among the many ways to provide security [14], one studied most intensively is cryptography. Deciding the appropriate cryptography method for sensor nodes is fundamental to providing security services in WSNs [26]. The studies about cryptography techniques are useful to protect the data transmitted between the sensor nodes.…”