scholarly journals A Novel Dual Encryption Algorithm to Enhance the Security in Image Transmission Using LSB 3-2-2 Technique

2021 ◽  
Author(s):  
Anitha R ◽  
Ashok Kumar P M ◽  
Ravi Kumar T

Nowaday’s providing the security for image is essential for correspondence. Steganography and cryptography are a technical method for the transfer of information to eliminate burglary and stealing of information. Cryptography steganography hides the occurrence of a mystery message. We need more Secured and confidential images to transfer. Steganography procedure on RGB genuine nature utilizing LSB 3-3-2 technique. On the RED & GREEN line, on the LSB Three-Three-two is a procedure, while on the blue channel, it is just 2 LSB. Messages are not exactly RED and GREEN on BLUE platforms. Double encryption techniques are used, such as Caesar cipher & Vigenere cipher, to preserve the nature of the stegno photos and to increase message safety. Use of steganographic strategies are insufficient to give security to informing it is imperative to join the strategy of cryptography. A combination of Caesar Encryption and Vigenere applies to message until they are inserted in LSB Three-Three-Two methods to provide extra protection. At this point we are providing the Caesar code and Vigenere image estimating to enhance security. The target of this is to upgrade the secrecy & security of the image steganography. It will be more efficient because using the two fold layer of security.

2018 ◽  
Vol 15 (10) ◽  
pp. 476-488
Author(s):  
Anil Wagle ◽  
Abeer Alsadoon ◽  
P.W.C. Prasad ◽  
Linh Pham ◽  
A. Elchouemi

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Shu-Ying Wang ◽  
Jian-Feng Zhao ◽  
Xian-Feng Li ◽  
Li-Tao Zhang

In view of the digital image transmission security, based on laser chaos synchronization and Arnold cat map, a novel image encryption scheme is proposed. Based on pixel values of plain image a parameter is generated to influence the secret key. Sequences of the drive system and response system are pretreated by the same method and make image blocking encryption scheme for plain image. Finally, pixels position are scrambled by general Arnold transformation. In decryption process, the chaotic synchronization accuracy is fully considered and the relationship between the effect of synchronization and decryption is analyzed, which has characteristics of high precision, higher efficiency, simplicity, flexibility, and better controllability. The experimental results show that the encryption algorithm image has high security and good antijamming performance.


2019 ◽  
Vol 5 (3) ◽  
pp. 261
Author(s):  
Yahya Risqi ◽  
Rudy Dwi Nyoto ◽  
Hafiz Muhardi

Image Steganography adalah teknik untuk menyisipkan pesan rahasia ke dalam suatu citra digital, sehingga secara kasat mata manusia tidak akan mengetahui keberadaan dari pesan rahasia tersebut. Tujuan dari penetilian ini adalah menggunakan citra QR Code sebagai secret yang diubah ke dalam mode bitonal dengan 1 bit pada tiap pikselnya kemudian dipecah menjadi dua bagian dan disisipkan kedalam blue channel di dual carrier image sehingga kapasitas dari pesan yang akan disisipkan dapat meningkat. Penyisipan pada dual carrier image juga dapat meningkatkan keamanan karena pesan dapat dikirim secara terpisah. Penyisipan pesan dilakukan dengan metode substitusi Least Significant Bit (LSB). Untuk mengevaluasi model steganography yang diteliti, digunakan pengujian MSE and PSNR, Hiding Capacity (HC), Histogram, recovery dan noise. Hasil pengujian menunjukkan dengan menggunakan citra PNG dan TIFF pada HC hingga 95% nilai PSNR tetap tinggi yaitu sebesar 56 dB, dengan tingkat recovery 100% dan tahan terhadap jenis noise salt and pepper.


Sign in / Sign up

Export Citation Format

Share Document