Abstract
Cryptography is a main item to generate confidence and empower services in the digital technology, while Steganography has vastly expanded in digital medias. Although developing these technologies hackers has established new methods to hack confidential information. To overcome these challenges, we proposed algorithm that encrypts a message by using DNA encryption algorithm, then multiply the output by a factor then compress the multiplying message by using GZIP algorithm, the last stage is hiding a compressed message in (LSB) image pixels. By using image measures such that PSNR, MSE, SSIM, NPCR, UACI and the ratio of data compression up to 75% where reduced the image difference, we obtained a good result when we combined these technologies. This work contributes to reducing the risk of information breach when sending and receiving confidential information between parties.
Highlights
A protecting data from hacking has become fundamental issue as an output of the huge developing of information technology and the enormous raise in internet access via transmitting and receiving information
DNA encryption is a new field in cryptographic world and many researchers are interested on this important technique, there is a unique DNA format for every person, there are four bases Adenine, Guanine, Cytosine, Thymine (A, G, C and T) that represent the bases of DNA
The proposed algorithm secures the confidential information over the communication, the sender will convert the characters of message to ASCII number converts the message to binary format the stage is applying of DNA basis (A, G, C and D) over the message again convert to ASCII number the output is multiplied by positive integer number to increase the complexity of the encryption algorithm, compress the message by using GZIP algorithm, the encrypted message is embedded into cover image by using Least Significant Bit (LSB) technique
Summary
A protecting data from hacking has become fundamental issue as an output of the huge developing of information technology and the enormous raise in internet access via transmitting and receiving information. To increase the algorithm robustness, Least Significant Bit (LSB) is employed to hiding the secret message, so that it supports and strengthening the algorithm efficiency [5][6], to enhance the task of exchanging secret information, it has been utilized the cryptography and steganography to protect data before transmission and the data is becoming safer when using this algorithm. The proposed algorithm secures the confidential information over the communication, the sender will convert the characters of message to ASCII number converts the message to binary format the stage is applying of DNA basis (A, G, C and D) over the message again convert to ASCII number the output is multiplied by positive integer number to increase the complexity of the encryption algorithm, compress the message by using GZIP algorithm, the encrypted message is embedded into cover image by using LSB technique. The receiver will extract the encrypted message from cover image and applies the decrypted algorithm that is reverse the algorithm in the sender side
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