eSAT Publishing House
Mobile Ad-hoc NETworks (MANETs) are the one of the popular and ongoing research where nodes exchange their information without forming predefined network (infrastructure less based network), so maintaining data secrecy and data confidentiality is an important and challenging task. In order to secure data, one has to deploy security technique either at the transmitter side or at the medium side (channel) so that attacker or third party should not access the information. In this paper, the authors are surveying some of the efficient security techniques available in MANETs considering both possible ways i.e. security either can be employed at the transmitter side or between links.