Symmetric Key Algorithm in Computer security: A Review

Anusha, R.; Kumar, M J Dileep; Shetty, Vaishnavi S; Hegde, Nagaratna P.

doi:10.1109/iceca49313.2020.9297547

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…The result is XORed with K once more to generate the ciphertext. Each round function consists of AddConstants (AC), SubCells (SC), ShiftRows (SR), and MixColumnSerial (MC) operations, which compute a 4 × 4 matrix multiplication in GF(2 4 ). 32 rounds resemble the structure of AES [33].…”

Section: The Led Block Ciphermentioning

confidence: 99%

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Provably-Secure LED Block Cipher Diffusion and Confusion based on Chaotic Maps

Al-Saadi,

Alshawi

2023

IJCAI

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Lightweight cryptography algorithms have concentrated on key generation's randomness, unpredictable nature, and complexity to improve the resistance of ciphers. Therefore, the key is an essential component of every cryptography algorithm since it affects the algorithm's level of security. Light Encryption Device (LED) is a high-performance, lightweight block encryption solution that works on resource-constrained devices and considers a lighter version of AES. It employs a 64-bit block cipher with two significant instances using 64-bit and 128-bit keys, respectively. A lack of key scheduling in LED heightens security risks, such as key-related attacks. Specifically, now that LED has been hacked and is no longer secure. Therefore, LED must achieve a high diffusion and confusion level to withstand known attacks. Chaos-based encryption provides an exceptionally high level of security because of the unique characteristics of chaotic systems, which are defined by various nonlinear deterministic dynamic equations. Merge LED algorithm and the advantages of chaotic maps randomness provide successful confusion and diffusion property to improve the LED algorithm's shortcomings by increasing its security. This paper presents a lightweight approach to construct a robust, sufficiently using 3-D Lorenz system chaotic map to generate a one-time pseudo-random bit key to avoid being predicted by adversaries, resulting in achieving sound confusion and diffusion and withstand known assaults. A NIST test suite found that the performance of the LED based on the 3-D Lorenz chaotic map approach in terms of data secrecy is nearly 0.3003 higher than that of the LED and keeps the trade-off between computation cost and security. Povzetek: Predstavljena je izgradnja robustnega in izvedbeno ugodnega 3-D Lorenzovega sistema za generiranje psevdo-naključnega ključa.

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Section: The Led Block Ciphermentioning

confidence: 99%

“…Thus, it is necessary to use current cryptography techniques to fend off security risks [1], [2]- [3]. In resource-constrained systems, conventional cryptography algorithms are extremely slow, complex, and energyintensive [4]- [5]. The use of low-cost computational algorithms is growing in popularity.…”

Section: Introductionmentioning

confidence: 99%

Provably-Secure LED Block Cipher Diffusion and Confusion based on Chaotic Maps

Al-Saadi,

Alshawi

2023

IJCAI

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“…Conventional cryptography algorithms are slow, complicated, and energy-intensive when used with resource-constrained systems [5], [6]. The use of simple algorithms is growing in popularity.…”

Section: Introductionmentioning

confidence: 99%

Improved Salsa20 Stream Cipher Diffusion Based on Random Chaotic Maps

Alshawi¹,

Muhalhal²

2022

IJCAI

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To enhance stream ciphers, numerous studies have concentrated on the randomness, unpredictable nature, and complexity of keystream. Numerous stream algorithms have been put forth. Most of them require a significant amount of computational power. Salsa20 is a high-performance stream encryption solution that works on computers with fewer resources and uses a secure method that is faster than AES. They suggest Salsa20 for encryption in common cryptographic applications. Users who value speed over certainty should utilize the Salsa20 family of reduced-round ciphers, such as the (8,12) round cipher. It uses a 256-bit key and a hash algorithm. A successful fusion makes use of both the Salsa20 algorithm's and the random maps' advantages to improve the Salsa20 algorithm's shortcomings by increasing its unpredictability. Particularly now that Salsa20/7 has been hacked and Salsa20/12 is no longer as secure as it previously was. As a result, Salsa20 needs to achieve a high level of diffusion to withstand known attacks. Right now, salsa20 and its shortened versions rank among the fastest ciphers. This study presents a novel lightweight approach to construct a strong keystream that is sufficiently random to avoid being predicted by adversaries, achieve good diffusion, and withstand known assaults. A NIST test found that the performance of the (Salsa20-chaotic maps) approach in terms of data integrity and secrecy is nearly 0.3131 higher than that of the Salsa20.Povzetek: Predlagan je algoritem generiranja varnih gesel za kriptirni algoritem Salsa20, s čemer se odpravi nedavno odkrite probleme.

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“…Then, this unit will be encrypted. Some of the famous and dominant encryption algorithms that use symmetric key encryption are Digital Encryption Standard (DES), AES, RC4, and IDEA [3]. In the case of asymmetric key encryption, two keys are used to handle the encryption and the decryption processes.…”

Section: Introductionmentioning

confidence: 99%