Proposed Model of Dynamic Encryption using Steganography

Nowadays, information is rapidly available through the Internet. Companies have the ability to communicate with a worldwide audience through the World Wide Web. So Information hiding techniques are received increasing attention due to: the availability of multimedia and digital form objects. And the need to present solutions to criminal copying and copyright problems. In this paper, a new encryption model is proposed by analyzing the principle of the encryption process based on cryptography and steganography. Moreover, the security and performance of the proposed model is also estimated. The presented results based on combination of cryptography and Steganography approve the effectiveness of the proposed model, and the combination of cryptography and steganography shows advantages of large key space and highlevel security. The cipher text generated by this method can be vary in size as the plaintext and will suitable for practical use in the secure transmission of confidential information over the Internet. Keyword Steganography, Security, Encryption, Decryption,