Identity based secure AODV and TCP for mobile ad hoc networks

Abstract

Security is a prime requirement for communication between authorized hosts in mobile ad hoc networks(MANETs). Recently, several approaches have been proposed to secure the routing of MANET. However, most of the approaches do not consider the security aspect on data transmission of transmission control protocol (TCP). As a result, several types of security threats in TCP can be observed. In this paper, we propose an identity (ID) based scheme that secures AODV and transmit TCP data to the authorized hosts. The proposed scheme secures the AODV using sequential aggregate signatures (SAS) based on RSA and also securely generates the session key for the MANET nodes to secure the TCP. In the proposed scheme, each node have an ID which is evaluated from its public key and messages are sent along with signature/MAC for authentication purpose. Following the proposed scheme a node cannot change its ID throughout the lifetime of the MANET. Therefore, the scheme is secure against the attacks that are associated with AODV and TCP in MANET. Performance analysis shows that our proposed scheme is secure and efficient against various types of attacks with fairly good overhead.