| Author | Piti Cherntanomwong |
| Call Number | AIT Thesis no.CS-00-15 |
| Subject(s) | Extranets (Computer networks)
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Advanced Technologies |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. CS-00-15 |
| Abstract | Virtual Private Networks (VPN) are used by companies for connecting between their headquarters and remotes branches because the company can eliminate the leased line cost, which is extremely expensive. However, VPN is unsafe because it uses only one-time authentication. A VPN server authenticates its client when the client requests to start a connection. After the verification has been accepted, the connection is established. The weakness of a VPN is that there is no re-authentication while the connection is active. An intruder can avoid an authentication and get into the VPN by faking an authenticated machine's IP address. To provide secured VPN, this study proposes the reauthentication technique that allows a VPN server to re-authenticate a client for as long as the client is connected. The proposed model provides varying degree of security where 100% secured is achieved by re-authenticating every packet. In this study, it was found that the additional time required per packet is 0.4 second. Varying degrees of security could be achieved by changing the frequencies of re-authentication. A hybrid scheme, to mix re-authentication cycles versus extra effort required in re-authentication, is given as a result of this study |
| Year | 2000 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. CS-00-15 |
| Type | Thesis |
| School | School of Advanced Technologies (SAT) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Computer Science (CS) |
| Chairperson(s) | Kanchana Kanchanasut; |
| Examination Committee(s) | Vatcharapom Esichaikul;Aekavute Sujarae; |
| Scholarship Donor(s) | The Office of Securities and Exchange;Commission Scholarship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2000 |