A novel approach for the development of the Twofish algorithm based on multi-level key space

Kareem, Suhad Muhajer; Rahma, Abdul Monem S.

doi:10.1016/j.jisa.2019.102410

Cited by 22 publications

(16 citation statements)

References 5 publications

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“…It is also suitable for stream ciphering. Twofish's main work is built on the Feistel network, which has 16 iterations [16]. The algorithm of Twofish was created with simplicity in mind.…”

Section: Twofish Algorithmmentioning

confidence: 99%

“…4-Pseudo-Hadamard Transforms (PHT): A PHT is a simple diffusion blending. Given two inputs a and b, the 32-bit PHT, for example, is defined as follows: a'= a + b mod 2 32 b' = a + 2 b mod 2 32 5-Whitening: Before the first round and after the last round, plain-text parts are combined with key components using XOR to increase the key's security versus assaults [16]. 6-Q-Permutation: The Q-Permutation is at the core of Twofish's design.…”

Section: -Substitution Boxes (S-box)mentioning

confidence: 99%

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Improving Security Using Cryptography Based on Smartphone User Locations

mahmood¹,

Nori²

2022

J.Edu.Sci.

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Smartphones have become widely employed in a range of fields as a result of substantial developments in communication technology, distribution, and the development of numerous types of smart mobile devices. The goal of this research is to secure information sent over mobile phone networks. In this paper, we propose using cryptography to create a more secure application for transmitting confidential information, using encryption to improve security, and depending on the location of the mobile phone user's coordinates, obtained via GPS, to increase security. The XOR process was used between coordinates, the idea was new, the application was implemented, and good results were obtained. The process of converting text into unreadable text is known as ciphering, and in order to achieve it in this paper the Twofish algorithm was used to encrypt confidential information. When sending the coordinates, the RSA algorithm was used to encrypt them as for the Twofish algorithm, the coordinates serve as a key. We conclude that the proposed system used in this study achieved a high level of security.

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“…It is also suitable for stream ciphering. Twofish's main work is built on the Feistel network, which has 16 iterations [16]. The algorithm of Twofish was created with simplicity in mind.…”

Section: Twofish Algorithmmentioning

confidence: 99%

Section: -Substitution Boxes (S-box)mentioning

confidence: 99%

Improving Security Using Cryptography Based on Smartphone User Locations

mahmood¹,

Nori²

2022

J.Edu.Sci.

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“…In [28], a variant of the Twofish algorithm with an increased complexity for multi-level keys adoptable for dynamic bit size inputs to improve its cryptographic strength that made it resistant against the differential attacks was adopted for encrypting images.…”

Section: Twofishmentioning

confidence: 99%

Node-Node Data Exchange in IoT Devices Using Twofish and DHE

Asare¹,

Kester²,

Nana³

2021

Adv. sci. technol. eng. syst. j.

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Internet of Things provides the support for devices, people and things to collaborate in collecting, analyzing and sharing sensitive information from one device onto the other through the internet. The internet of things is thriving largely due to access, connectivity, artificial intelligence and machine learning approaches that it supports. The stability and enhanced speed of the internet is also attributable to the huge adoption rate that IoT continues to enjoy from Governments, industry and academia in recent times. The increased incidences of cyber-attacks on connected systems in recent times, has inspired the heightened efforts from Governments, industry practitioners and the research world towards improving existing approaches and the engineering of new innovative schemes of securing devices, the software or the platforms for the deployment of IoT. Security solution for Internet of things includes the use of secure ciphers and key exchange algorithms that ensures the provisioning of a security layer for the: devices or hardware, communication channels, cloud, and the life cycle management constituting the Internet of things. The use of key exchange algorithms in resilient cryptographic solution that have less computational requirements without compromising the security efficiency in the encryption of messages for IoT continues to be the preferred approach in securing messages in a node-node exchange of data. This paper aims at providing a cryptographic solution that uses a key exchange cryptographic primitive and a strong cipher in encrypting messages for exchange between nodes in an IoT. Towards achieving this goal, the Diffie-Hellman key exchange (DHE) protocol was used to provide a secure key exchange between the communicating nodes, whiles the Twofish block cipher was used in the encryption and decryption of messages, assuring the security, privacy and integrity of messages in a node-node IoT data exchange. The cryptographic solution has a high throughput.

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“…In the same year, Jabbar et al proposed a protocol using Magic Square of order 3 and used it in encryption [3]. In 2020, Kareem and Rahma introduced an amendment to the Twofish algorithm in cryptography, whereby 2 keys were used with several rounds, and multi-level keys were used for 4 different message sizes during the work in addition to the use of GF [10]. Later in 2021, Cuevas and Netzer proposed and developed a method based on magic squares and their relationship to cryptography and quantitative information and their relationship to the games [11].…”

Section: Introductionmentioning

confidence: 99%

A New Block Cipher Algorithm Using Magic Square of Order Five and Galois Field Arithmetic with Dynamic Size Block

Alattar

Rahma

2021

Int. J. Interact. Mob. Technol.

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This paper describes the development of encryption algorithms using the magic square of order 5 and Multi-level keys with the addition of Matrix keys to increase implementation speed and complexity. This work relied mainly on the magic sum and some equations that were added as an improvement on previous work. Multi-level keys were used for three different message sizes, and an additional key matrix with size 5×5 was used to add more complexity. The proposed work was performed using both GF(P) and GF(28). Results were compared with the MS3, they have been found good, with acceptable speed and high complexity where it was (P)9 × (256)16 in the first algorithm, (P)9 × (256)16 × 3 in the second algorithm, and (P)9 × (256)16 × 3 × (P)25 in the third algorithm, the complexity changed according to the chosen value of N randomness, in addition to speed, complexity, NIST calculations have been performed for texts and histogram calculations for different images were calculated and compared as well.

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A novel approach for the development of the Twofish algorithm based on multi-level key space

Cited by 22 publications

References 5 publications

Improving Security Using Cryptography Based on Smartphone User Locations

Improving Security Using Cryptography Based on Smartphone User Locations

Node-Node Data Exchange in IoT Devices Using Twofish and DHE

A New Block Cipher Algorithm Using Magic Square of Order Five and Galois Field Arithmetic with Dynamic Size Block

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