TY - JOUR
T1 - Tuning the quality parameters of a firewall to maximize net benefit
AU - Yue, Wei T.
AU - Bagchi, Amitava
PY - 2004
Y1 - 2004
N2 - A firewall protects the informational assets of an organization from intruders. Incoming message packets are filtered by the firewall before being forwarded to their destinations inside the organization. In the process, a fraction q1 of benign (i.e., desirable or harmless) packets and a fraction q2 of intrusive (i.e., undesirable or harmful) packets get blocked. Ideally, we should have q1 = 0 and q2 = 1, but in practice q1 and q2 are functionally related. Since the firewall has a non-zero service time, it also causes a delay because packets get queued for service. Thus by using a firewall an organization incurs a cost, but there is also a corresponding benefit. This study considers the simple case when a single firewall is in use. We do an economic analysis and derive a mathematical expression for the net benefit. We then maximize it by tuning the quality parameters q1 and q2 appropriately. © Springer-Verlag 2003.
AB - A firewall protects the informational assets of an organization from intruders. Incoming message packets are filtered by the firewall before being forwarded to their destinations inside the organization. In the process, a fraction q1 of benign (i.e., desirable or harmless) packets and a fraction q2 of intrusive (i.e., undesirable or harmful) packets get blocked. Ideally, we should have q1 = 0 and q2 = 1, but in practice q1 and q2 are functionally related. Since the firewall has a non-zero service time, it also causes a delay because packets get queued for service. Thus by using a firewall an organization incurs a cost, but there is also a corresponding benefit. This study considers the simple case when a single firewall is in use. We do an economic analysis and derive a mathematical expression for the net benefit. We then maximize it by tuning the quality parameters q1 and q2 appropriately. © Springer-Verlag 2003.
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M3 - RGC 21 - Publication in refereed journal
SN - 0302-9743
VL - 2918
SP - 321
EP - 329
JO - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
JF - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ER -