A signcryption scheme for WEP in WLAN based on bilinear pairings

Based on the analysis on the security mechanism of wireless local network (WLAN), we found that due to the initialization vector (IV) which is published by Wired Equivalent Privacy (WEP) protocol without encrypting, there are many serious secure leaks in its application. In this paper, We propose an efficient signcryption scheme to the IV based on the Decisional Bilinear Diffie-Hellman Problem (DBDP) to solve these problems. The analysis demonstrates that the scheme not only guarantees the confidentiality and integrality of the IV but also is developed with a consideration for taking advantages of the existing hardware facilities.