Abstract—This paper studies key management and security issues in mobile ad hoc networks (MANETs). Lack of strong identification results in unauthorized entities access to the sensitive data, and leads to loos of confidentiality and integrity, which causes many vulnerabilities and attacks in the network .We present the key management scheme as a combination of Identity-Based (User’s Identification), Unique Transmission’s time Factor and Threshold Cryptography for ad hoc networks. It is a certificateless solution which eliminates the need for public key distribution and certificates in public key management schemes. This scheme is also efficient in computation since small unique factor enhance the authentication of entities.

Index Terms—Identity based cryptography, key management, security, mobile ad hoc network.

Shohreh Honarbakhsh and Azizah Bt Abdul Manaf are with the Advanced Informatics School, Universiti Teknologi Malaysia Kuala Lumpur, Malaysia (e-mail: shohreh_h2000@yahoo.com, Azizah07@citycamput.utm.my).
Liza Binti Abdul Latif is with the Center for Diploma Studies UTM SPACE, Universiti Teknologi Malaysia International Campuse (e-mail: liza@ic.utm.my).
Babak Emami is with the Universiti Teknologi Malaysia (e-mail: Eababak2@live.utm.my).

Cite:Shohreh Honarbakhsh, Liza Binti Abdul Latif, Azizah bt Abdul Manaf, and Babak Emami, "Enhancing Security for Mobile Ad hoc Networks by Using Identity Based Cryptography," International Journal of Computer and Communication Engineering vol. 3, no. 1, pp. 41-45, 2014.