In hybrid ad hoc networks for securing communication and preserving user anonymity and location privacy, the authors propose light weight protocol. To secure route discovery and data transmission symmetric-key-cryptography operations and payment system are used. The payment can be secured without submitting or processing payment proofs to reduce the overhead. With low overhead, to preserve user's anonymity, they develop efficient pseudonym generation and trapdoor techniques that do not use the resource-consuming asymmetric-key cryptography. Pseudonyms do not require large storage area or frequently contacting a central unit for refilling.