1. A secure mobile ad-hoc network node comprising: a wireless communications device for establishing a wireless communications link with at least one adjacent node; a plain text source; a seed generator for performing a one-way algorithm using a secret key for generating a seed; a key encryptor receiving the seed and generating a key sequence based thereon; and a logic circuit generating cipher text for transmission to the at least one adjacent node over the wireless communications link and based upon the key sequence and the plain text.