Securing Ad Hoc Networks with "Asymmetric" Probabilistic Key Predistribution Schemes
M. Ramkumar · 2006
We present two "asymmetric" probabilistic key predistribution schemes to cater for mutual authentication and broadcast authentication respectively. The schemes however employ only symmetric cryptographic primitives - the asymmetry is due to the use of different secrets for encryption/authentication and decryption/verification, which are however related through a one-way function. Both schemes try to take advantage of an abundant and inexpensive resource, storage, to improve their security. While both schemes can have a wide range of applications, we limit ourselves to their utility in securing multi-hop ad hoc networks