IRJET- Image Encryption and Decryption Algorithm for Secured Image Transmission

International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 07 Issue: 08 | Aug 2020

p-ISSN: 2395-0072

www.irjet.net

Image Encryption and Decryption Algorithm for Secured Image Transmission Bi Bi Asiya 1, Dr K. V Prasad 2, KVSC Sastry3 1PG

Student, 2Professor and HOD, 3Scientist F DARE, DRDO of Electronics and Communication Engineering, Bangalore Institute of Technology, Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------1-3Dept.

Abstract - Security has become the significant worry in keeping up classification of information. Correspondence inside a system requires move of information as text just as pictures. During the exchange of an advanced picture security penetrates will undoubtedly happen. Consequently, the utilization of cryptographic and encryption calculation is accentuated and used. DNA cryptography is a developed cryptographic subject added from the research of DNA computing, where in DNA is utilized as security service for information and the present scenario of organic technology is used as fulfillments device .DNA succession lattice is acquired by encrypting the present image, at that point, isolate the DNA grouping network into some equivalent squares and utilize the DNA arrangement option activity to include these squares. The big parallelism, magnificent power effectivity and great facts density inherent in DNA molecules are being explored for computing, facts storage and cryptography. In such lookup area, novel computers, information storage and cryptography would possibly be invented and this may lead to a new revolution in in-formation science. DNA lookup table has additionally been used for growing the security of cipher text.

The DNA cryptography algorithm is accomplished using Matlab.

Cryptography is an approach for securing statistics and interchanges the usage of codes with the intention that just the ones for whom the statistics is anticipated can peruse and procedure it. In software engineering, Cryptography to ensure approximately records and correspondence techniques got from numerical thoughts and a lot of ruleprimarily based counts taken into consideration calculations to change messages in manners which are difficult to disentangle. These deterministic calculations are applied for cryptographic key age and automated marking and affirmation to secure facts protection, internet perusing on the web and mystery interchanges, as an example, MasterCard exchanges and e-mail.

1.1 DNA Cryptography DNA stands for deoxyribonucleic acid which is germ plasm of living organisms. It stores all of the information approximately the frame features of biological macromolecule of all life styles. It is different for particular person. DNA is made of monomers known as deoxyribosenucleotides. Where each nucleotide is manufactured from deoxyribose sugar, phosphate institution and nitrogenous base. There is 4 nitrogen policies utilized to make a collection of DNA bases as thymine (T), cytosine (C), adenine (A) and guanine (G) as shown in fig 1.

Key Words: DNA cryptography, DNA sequences, image encryption, image decryption, MATLAB, etc.

1. INTRODUCTION Present security issues are progressively worried in correspondence channel. We are transmitting parcel of pictures through correspondence channel. To make sure about the pictures while transmitting through correspondence security is exceptionally vital. Guaranteeing the security of data over the span of transmission have become the most significant things for individuals at present.

So as to secure the data in the transmission procedure and keep the data from taking, encryption is required.

Information or data regularly makes a trip starting with framework then onto the next, leaving the security of its ensured physical environmental factors. When the information is out of hands, People with terrible intension should alter or manufacture your facts, both for diversion or for their very own benefit. Cryptography can reformat and exchange our information, making it more secure on its transmission between various frameworks.

Š 2020, IRJET

|

Impact Factor value: 7.529

Figure 1: DNA structure

|

ISO 9001:2008 Certified Journal

|

Page 4833

International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 07 Issue: 08 | Aug 2020

p-ISSN: 2395-0072

www.irjet.net

DNA cryptography includes enciphering the plaintext utilizing DNA computational methods. A large portion of the cryptographic calculations include an enormous reminiscence and calculations like, One Time Pad is a nonrehashing huge content cushions, this method will be extremely helpful. A 1 gram of DNA carries 1021 DNA components and shop 108 terabytes of reminiscence. 1 trillion bits of double facts can be placed away in 1 cubic decimeter of DNA arrangement.

Biology Laboratory) and DDBJ (The DNA Data Bank of Japan), the database used for this work is from Generation Bank.

Generation Bank is an open approach inherited gathering data base, a combination of all uninhibitedly available DNA game plans. Expansion codes is applied for getting to DNA progression from Generation Bank with the use of MATLAB implementation tool stash an advancement number is a mix of square letters of English letters all together, digits 0-9 and the phenomenal picture '_' . These advancement number must let sleeping dogs lie and transmitted to the gatherer for unscrambling. Considering the expansion symbol riddle, a codebook created with the assist of DNA pressure computation. It is shown in fig: 2.

DNA bases calculations take extremely short duration contrasted with different calculations. The errand of any cryptography calculation is to make sure about the information for exceptionally enormous span of duration. In this method, bases of DNA are orchestrated in irregular request and plaintext bits has been put away effectively utilizing these. By this procedure utilizing secret key which is completely arbitrary cryptographic method, these information is made sure about for significant stretches of time. Not with standing memory, DNA atoms show equal calculation, which implies DNA based procedures are equipped for extraordinary preparing.

DNA sequence has huge size of parallelism and figuring pace has reach up 1 billion times each subsequent calculations.

DNA based PCs likewise have less force utilization, which is equivalent to one – billionth of a conventional PC. 1.2 Objectives The point of my prostrate is to fabricate a DNA cryptosystem framework which fulfills the accompanying goals: 1) Analyze and Design Enhanced Encryption and Decryption Algorithm to Improve Confidentiality and Security of Digital Image Transmission. 2) Transmission of Image through Communication Channel with High Confidentiality, Security and Minimal Error.

Figure 2: DNA cryptosystem

2. PROPOSED METHODOLOGY

The centrality of the codebook is that it must be reciprocate at any rate as soon as in the center of the sender and recipient by using strategies for uninhibitedly or subtly earlier than the actual statistics transmission start. DNA Encryption is the method for encoding the puzzle message the use of Bio subnuclear estimation which makes this special from logical figuring. In the DNA requesting procedure, the undeniable substance which is the important message is changed over to the equal shape and once more to the DNA structure. The one time password keys are created randomly from the open data base generator. These secret key and the DNA frame of the simple substance are taken a gander at and a self-assertive document is created, which is the combined data.

Unscrambling system is performed in the contrary solicitation to get the main simple textual content.

A count made for this method is ideal for textual information similarly as picture data. If information is in text structure, encode using text encryption algorithm. For picture encryption two picture pre-dealing with techniques are applied. These principal devotees picture to message using sensible figuring, then a comparative system as for the substance encryption. Second one followers picture to twofold, by then a comparative method as per the substance encryption. By completing of work, a close to report between these two figuring are consolidated. This method relies upon conventional cryptographic strategy.

It has three stages. • Key age • Encryption • Decryption.

Key age relies upon secret key such as one time password.

These secret key is taken clearly by open inherited data storage. There are various open data base generator on hand like Generation Bank, EMBL (The European Molecular

© 2020, IRJET

|

Impact Factor value: 7.529

|

ISO 9001:2008 Certified Journal

|

Page 4834

International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 07 Issue: 08 | Aug 2020

p-ISSN: 2395-0072

www.irjet.net

2.1 Image Encryption For the conversion of image to text, change the image to grayscale image for processing to be carried out on a single array. The image data corresponding to each pixel is converted to ASCII characters (English alphabets) and written into text files. Encryption includes following steps: i.

ASCII Encoding ii. Bit streaming iii. DNA Encoding iv. DNA Encoding rule v. DNA pattern matching vi. Index Generation vii. Random Extractor viii. Cipher text Generation.

Fig 4: DNA image decryption 3. RESULTS The proposed DNA Cryptosystem is discussed in previous chapter is implemented on MATLAB 2019a and the results are analyzed in this chapter. The DNA encryption and DNA decryption of the image is implemented on the MATLAB R2019a graphical user interface by applying the algorithm through a Matlab DNA app designer. DNA encryption and DNA decryption on MATLAB R2019a is done as: Image message, Alphabetic message, Symbolic message. The image is loaded to the DNA encryption algorithm in the MATLAB DNA app designer. After image is loaded will be feeding the secret key. The secret key can be a letter, symbol, space or numerals. Begin the encryption of the image.

Fig 3: DNA image encryption 2.3 Image Decryption The image can be reconstructed from this text file by applying the reverse process. Each integer from the cipher text is used as pointer into the key sequence. Images is stored as text files by converting the corresponding pixel values to ASCII characters. The compressed image matrix stored in RLE array is written into a text file, which is a form of image to text conversion and has an added feature of hiding images as text files.

Š 2020, IRJET

|

Impact Factor value: 7.529

MATLAB DNA app designer has following steps for DNA encryption in DNA cryptosystem: 1) Complete your encryption by the below sequence 2) Encrypt the image 3) Generate a key 4) Process XOR operation 5) Send the data to decryption.

From the DNA encrypted image, image is decrypted and after decryption of the image we can decrypt the secret key. The real time image can be capture from camera.

|

ISO 9001:2008 Certified Journal

|

Page 4835

International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 07 Issue: 08 | Aug 2020

p-ISSN: 2395-0072

www.irjet.net

Decryption of encrypted image from the secret key hence decrypted image is produced. The decryption of a text from the decrypted image for example asiya is a secret key which is decrypted from the decrypted image.

3.1 Result analysis:

3.2 Time analysis: Time analysis is performed to measure the duration of the projected scheme, the computation time is calculated for the encryption and decryption of the image. The projected scheme is implemented in MATLAB. The average encryption and decryption time of the image using DNA cryptosystem is less as compared to previous methods. The screen short of command window gives the time duration of encryption and decryption of image using DNA cryptography.

Figure 5: show the steps for encryption of an image.

The MATLAB graphical user interface which provides the DNA file location. The file location of the image is opened for encryption, then the file is run for the encryption of image.

Encrypt of real time image can carry out using web camera also. Fig 5 shows to load the image for encryption then insert the password for encryption of image .the image is loaded, secret key is inserted for the encryption. Fig 5.4 show to insert the secret key .for example asiya is given as secret key after that begin encryption is selected then app designer ask for encryption then to generate a key ad in DNA process XOR operation is done for the decryption.

Fig 7: command window showing time duration of encryption and decryption of image.

4. CONCLUSION The examination of DNA cryptography is still at beginning, and there are numerous issues to be comprehended. Be that as it may, the tremendous parallelism, excellent vitality effectiveness and unprecedented data thickness inborn in DNA particles enrich DNA cryptography exceptional advantages over different sorts of cryptography. The process on DNA cryptographic framework is presented, which can unravel the crises of existing regular cryptographic strategy.

The calculation is appropriate for the two kinds of information text and picture. Encryption is dependent on secret key. Secret key is a rugged encryption technique utilized in cryptography. DNA cryptography is consolidate benefit of both security and bio molecular calculation. The real time picture is considered for encryption calculation based on DNA arrangement expansion. Hence above conversation, secret key can be of any form as alphabet, numbers, and symbols. Estimation of encryption and decryption is very precise by DNA process. Through the test result and safety examination, reported worked calculation found to be a superior encryption.

Fig 6 shows the decryption of a text from the decrypted image.

Š 2020, IRJET

|

Impact Factor value: 7.529

|

ISO 9001:2008 Certified Journal

|

Page 4836

International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 07 Issue: 08 | Aug 2020

p-ISSN: 2395-0072

www.irjet.net

[13] Pushpa, B. R. (2017). A new technique for data encryption using DNA sequence. 2017 International Conference on Intelligent Computing and Control (I2C2). doi:10.1109/i2c2.2017.8321834 [2]Akiwate, B., & Parthiban, L. (2018). A Dynamic DNA for Keybased Cryptography. 2018 International Conference on Computational Techniques, Electronics and Mechanical Systems (CTEMS). doi:10.1109/ctems.2018.8769267.

REFERENCES [1] Adleman, Leonard M, "Molecular computation of solutions to combinatorial problems," Science-AAAS-Weekly Paper Edition 266, no. S5187, 1994.

[2] Hiding messages in DNA microdots Catherine Taylor Clelland1, Viviana Risca2 & Carter Bancroft1 [3] J. Lipton Richard, "DNA solution of hard computational problems", Science 268.5210: 542-545, 1995.

[4] Boneh Dan, Christopher Dimworth, Lipton, Richard J. "Breaking DES Using a Molecular Computer," DNA based computers 27, 37: 1996.

[5] Ouyang Qi, D. Peter Kaplan, Liu Shumao and Albert Libchaber, “DNA solution of the maximal clique problem,” Science 278, 5337, 446-449, 1997 [6] M. E. Borda, O. Tornea, T. Hodorogea, “Secret Writing by DNA Hybridization”, ActaTehnica Napocensis, vol. 50, pp. 2124, 2009.

[7] Zhang Yunpeng, Zhu Yu, Wang Zhong, Richard O.Sinnott, “Index- Based Symmetric DNA Encryption Algorithm”, 2011 4th International Congress on Image and Signal Processing, IEEE. [8] TusharMandge, Vijay Choudhary, “A DNA encryption technique based on matrix manipulation and secure key generation scheme”, ICICES Journal, 2013, Print ISBN: 978-14673-5786-9, pp.47-52.

[9] Surendra Varma, K.Govinda Raju, “Cryptography based on DNA using random key generation scheme”, International Journal of Science Engineering and Advance Technology, IJSEAT ,2014, Vol 2, Issue 7, ISSN 2321-6905, pp.168-175.

[10] Mohammadreza Najaftorkaman, Nazanin Sadat Kazazi, “A method to Encrypt Information with DNA-based Cryptography”, International Journal of Cyber Security and Digital Forensics, ISSN: 2305-0012, pp. 417-426, 2015.

[11] Sonal Namdev, Vimal Gupta, “A DNA and Amino-Acids Based Implementation of Four-Square Cipher”, Journal of Engineering Research and Applications, ISSN: 2248-9622, vol. 6, Issue No. 1, (Part- 2), pp. 90-96, January 2016.

[12] X. Chai, Y. Chen, and L. Broyde, “A novel chaos-based image encryption algorithm using DNA sequence operations,” Optics and Lasers in Engineering, vol. 88, pp.

197–213, 2017 T. Hu, Y. Liu, L.-H. Gong, and C.-J. Ouyang, “An image encryption scheme combining chaos with cycle operation for DNA sequences,” Nonlinear Dynamic, vol. 87, pp. 51–66, 2017.

© 2020, IRJET

|

Impact Factor value: 7.529

|

ISO 9001:2008 Certified Journal

|

Page 4837