Foiling an Attack - Defeating IPSec Tunnel Fingerprinting. - Vafa D. Izadinia; Jan H. P. Eloff; Derrick G. Kourie (ISSA, 2005)

Uncovering identities: A study into VPN tunnel fingerprinting. - Vafa D. Izadinia; Derrick G. Kourie; Jan H. P. Eloff (Comput. Secur., 2006)