Earlier the digital watermarking was evaluated according to imperceptibility, capacity and robustness. In this paper, based on security considerations the authors address a new secure approach. Their new approach is inspired from the cryptanalytic approach. In order to achieve higher secrecy and efficiency they use a combined approach based on both digital watermarking and Cryptography together for embedding the secret information. The purpose of their paper is to enhance the security of secret information embedding into the cover image. They implement an asymmetric key cryptography technique RSA (Rivest, Shamir and Adleman) and spatial domain technique in digital watermarking.