The Wired Equivalent Privacy (WEP) uses the 64 bit RC4 secret key stream cipher as its layer 2 security protocol. Although the underlying RC4 cipher is secure, the potential reuse of the same key stream by different frames is a weakness in the WEP. One enhancement to WEP is the Temporal Key Integrity Protocol (TKIP), which acts as a wrapper to the WEP protocol and uses a 128 bit RC4 encryption ...

WSNs (Wireless sensor networks) are nowadays viewed as a vital portion of the IoTs (Internet of Things). Security is a significant issue in WSNs, especially in resource-constrained environments. AKA (Authentication and key agreement) enhances the security of WSNs against adversaries attempting to get sensitive sensor data. Various AKA schemes have been developed for verifying the legitimate use...

We put forward a new paradigm for building hybrid encryption schemes from constrained chosen-ciphertext secure (CCCA) key-encapsulation mechanisms (KEMs) plus authenticated symmetric encryption. Constrained chosen-ciphertext security is a new security notion for KEMs that we propose. CCCA has less demanding security requirements than standard chosen-ciphertext (CCA) security (since it requires ...

The accelerated penetration rate of renewable energy sources (RES) brings environmental benefits at the expense increasing operation cost and undermining satisfaction N-1 security criterion in transmission systems. To address latter issue, this paper envisions control RES dominated power systems through stochastic multi-period AC constrained optimal flow (SCOPF). extends state-of-the-art, i.e. ...