This work shows new and efficient algorithm of cryptographic purpose based symmetric and conventional techniques that considers the representation of the cipher text by using the three dimensional Discrete Wavelet Transform to find the wavelet decomposition vector containing the approximation and the detail coefficients then build the three dimensional data structure approach. The decryption is done by extracting the encrypted data from the wavelet decomposition vector using the algorithm of inverse Discrete Wavelet Transformation. The encrypted message consists the wavelet decomposition vector. The key is used for authorization purpose to access the network. Results shows great data security and BER over wireless channels based Ad Hoc network.