A new image encryption technique combining Elliptic Curve Cryptosystem with Hill Cipher

Dawahdeh, Ziad E.; Yaakob, Shahrul Nizam; Othman, Rozmie Razif

doi:10.1016/j.jksuci.2017.06.004

Cited by 64 publications

(58 citation statements)

References 5 publications

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“…where = 1, = 3, = 31; which satisfies the condition 4 3 + 27 2 = 4(1) 3 +27(3) 2 = 4+243 = 247 mod 31 = 30 0. The elliptic curve 31 (1, 3) points are shown in Table 1 [16,18]. Since the order of the elliptic curve 31 (1, 3) is 41, which is a prime number, any point from Table 1 can be chosen to represent the base point or generator point .…”

Section: Experimental Results and Analysismentioning

confidence: 99%

“…Ramesh [15] introduced an algorithm consists of four stages to eliminate the repetition of the substrings and enhance the security, and double columnar transposition is done for the plaintext twice, each time before applying Hill cipher  ISSN: 2088-8708 encryption. Dawahdeh [16] proposed a new image encryption technique that combined elliptic curve cryptosystem with hill cipher and applied the new technique on grayscale images and got a good results compared with other similar techniques.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Assume the message divided into blocks of size four characters (add space to complete the last block, if necessary). So, each party produces the 44  self-invertible key matrix by using the proposed method in [16,22] The main concept of Hill cipher depends on assigning a numerical value for each character in the plaintext [23]. The decimal ASCII code table from 32 to 126 will be used for this issue (space=32, !=33, …, 0=48, 1=49, …, A=65, B=66, …, a=97, b=98, …, ~=126), and mod 95 will be used in this case for modulo.…”

Section: The Proposed Cryptosystemmentioning

confidence: 99%

See 2 more Smart Citations

A new hybrid text encryption approach over mobile ad hoc network

Almaiah

Dawahdeh

Almomani

et al. 2020

IJECE

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Data exchange has been rapidly increased recently by increasing the use of mobile networks. Sharing information (text, image, audio and video) over unsecured mobile network channels is liable for attacking and stealing. Encryption techniques are the most suitable methods to protect information from hackers. Hill cipher algorithm is one of symmetric techniques, it has a simple structure and fast computations, but weak security because sender and receiver need to use and share the same private key within a non-secure channel. Therefore, a novel hybrid encryption approach between elliptic curve cryptosystem and hill cipher (ECCHC) is proposed in this paper to convert Hill Cipher from symmetric technique (private key) to asymmetric one (public key) and increase its security and efficiency and resist the hackers. Thus, no need to share the secret key between sender and receiver and both can generate it from the private and public keys. Therefore, the proposed approach presents a new contribution by its ability to encrypt every character in the 128 ASCII table by using its ASCII value direct without needing to assign a numerical value for each character. The main advantages of the proposed method are represented in the computation simplicity, security efficiency and faster computation.

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Section: Experimental Results and Analysismentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: The Proposed Cryptosystemmentioning

confidence: 99%

See 1 more Smart Citation

A new hybrid text encryption approach over mobile ad hoc network

Almaiah

Dawahdeh

Almomani

et al. 2020

IJECE

View full text Add to dashboard Cite

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“…The system requires high computation which makes it slower. Dawahdeh et al [ 29 ] have adopted the encryption technique incorporating the Elliptic Curve Cryptosystem with Hill Cipher. The researchers selected ECC asymmetric encryption and Hill Cipher for symmetric encryption.…”

Section: Literature Reviewmentioning

confidence: 99%

Analytical Study of Hybrid Techniques for Image Encryption and Decryption

Chowdhary

Patel

Kathrotia

et al. 2020

Sensors

107

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The majority of imaging techniques use symmetric and asymmetric cryptography algorithms to encrypt digital media. Most of the research works contributed in the literature focus primarily on the Advanced Encryption Standard (AES) algorithm for encryption and decryption. This paper propose an analysis for performing image encryption and decryption by hybridization of Elliptic Curve Cryptography (ECC) with Hill Cipher (HC), ECC with Advanced Encryption Standard (AES) and ElGamal with Double Playfair Cipher (DPC). This analysis is based on the following parameters: (i) Encryption and decryption time, (ii) entropy of encrypted image, (iii) loss in intensity of the decrypted image, (iv) Peak Signal to Noise Ratio (PSNR), (v) Number of Pixels Change Rate (NPCR), and (vi) Unified Average Changing Intensity (UACI). The hybrid process involves the speed and ease of implementation from symmetric algorithms, as well as improved security from asymmetric algorithms. ECC and ElGamal cryptosystems provide asymmetric key cryptography, while HC, AES, and DPC are symmetric key algorithms. ECC with AES are perfect for remote or private communications with smaller image sizes based on the amount of time needed for encryption and decryption. The metric measurement with test cases finds that ECC and HC have a good overall solution for image encryption.

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“…The key matrix should be invertible in hill cipher algorithm for decryption process. Later, [8]proposed a new technique called self invertible key matrix (k=kꜗ ) that avoids the above problem. It uses single matrix for encrypting the pixels inside the image but it takes more time.…”

Section: Introductionmentioning

confidence: 99%

Elliptic Curve Blended Cross Chaos Based Secure Image Communication

Rajendran*¹,

Abilashaa²,

Doraipandian³

2019

IJRTE

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Image encryption has proven a successful method to communicate the confidential information. Some of the images may or may not be confidential. So there is a need to secure the confidential images. Initially, symmetric encryption is used for security purpose. But it has the problem that if the key is revealed the interceptors can immediately decode it. To make the key transformation more secure, asymmetric encryption is introduced. In this two different keys are used for encoding and decoding. So even the interceptors hacked the key it cannot be possible to decode. In this project Elliptic Curve Cryptography (ECC) is utilized for generating the keys and the cross chaotic map used for generating the chaotic sequence. These chaotic sequences are utilized to encode the image for secure communication.

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A new image encryption technique combining Elliptic Curve Cryptosystem with Hill Cipher

Cited by 64 publications

References 5 publications

A new hybrid text encryption approach over mobile ad hoc network

A new hybrid text encryption approach over mobile ad hoc network

Analytical Study of Hybrid Techniques for Image Encryption and Decryption

Elliptic Curve Blended Cross Chaos Based Secure Image Communication

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