In the recent years, it comes into more notice for Vehicular Ad-hoc Network (VANET) due to good applications of VANET. For example, those applications include the driving secure and some serviced applications (e.g., loading electric maps, web Service, and so on). The delivered message about driving secure is called the traffic messages, and the delivered message about serviced applications is called the routine message. The traffic message is more important than the routine message. When vehicle is driven on the road and the events are happened (example of accident, or jam), it can broadcast these happened events to notify others on the same road by VANET and let others to earlier get the awareness to avoid the more serious accident or traffic jam. In fact, these traffic messages are related to the life of driver and passengers. Thus, we must pay attention to the correctness of these traffic messages when these messages are sent in VANET, i.e., it will result the serious traffic disorder if these messages are altered or forged by illegal offenders and we don¡¦t permit this situation to occur. Hence, the network security in VANET is the emphasis in this paper.
There are some studies that have proposed some scheme for message authentication in VANET. However, there still exist some imperfections in these schemes (for example, the communication overhead is too heavy). Thus, this thesis proposes two schemes to improve these drawbacks based on some schemes which had been proposed. The first proposed scheme verifies message with the RSU¡¦s aid in the RSU scenario. The second proposed scheme uses the clustering to work a rotation for verifying message for no RSU scenario. The two schemes can efficiently reduce the communication overhead to form an integrity message authentication system.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0715109-170120 |
| Date | 15 July 2009 |
| Creators | Liao, Yu-cheng |
| Contributors | WEN-HSIUNG HSIEH, LUNG-JEN WANG, BIN-YI LIAO, MING-CHAO CHIANG, YI-WU CHIANG |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0715109-170120 |
| Rights | not_available, Copyright information available at source archive |
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