A Novel Cryptography Method Based on Image for Key Generation

This study proposes a method for encrypting the sender´s messages using new algorithm with a secret key which is generated from using color image and the difference in the LSB of the image pixels. This key will be used for encrypting and decrypting the messages which are transmitted between two sides. The length of the key varies according to the size of the message as it varies in every session according to the session type. It is a reliable and flexible way to generate the key to secure the information which is transferred through the networks and it is easy to implement. This method ensures the prevention of guesses or breaking the key and provides a more secure way for information encryption.