Implementation of Modified TEA to Enhance Security

Rajak, Chandradeo Kumar; Mishra, Arun

doi:10.1007/978-3-319-63673-3_46

Cited by 3 publications

(3 citation statements)

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“…In [19], the authors proposed a modified version of the TEA encryption algorithm (MTEA) with a stronger key scheduling algorithm using a S-Box-based approach. Four 32-bit words make up the 128-bit cipher key, each of which is rotated left by 11 bits and subject to a 4x4 S-Box twice.…”

Section: Literature Reviewmentioning

confidence: 99%

Enhancement of Tiny Encryption Algorithm for Resource-Constrained WSNs Using Four Connected Additive Fibonacci Generators

Zyara,

Mhaibes,

Shallal

2024

JCSANDM

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The usage of wireless sensor networks (WSN) is widespread in industries where data security is crucial. Due to the energy and computational limits of WSN, the cryptographic protocols designed for it must be as computationally cheap as feasible. The components of these protocols, such as the random number generator, are subject to the same constraints. For such resource-constrained devices, several lightweight encryption techniques have been created. One of the most efficient lightweight ciphers is Tiny Encryption Algorithm (TEA). TEA uses a few lines of source code that are based on Feistel. It is however susceptible to attacks utilizing equivalent and related key attacks. In order to address TEA’s key vulnerabilities, a modification is suggested in this paper that focuses on key creation. Four connected Additive Fibonacci Generators (AFGs) make up the structure, which addresses the security vulnerability by using a unique key each round. Performance evaluation was assessed using three statistical tests: avalanche effect, randomness analysis, and completeness testing. Through experimental results, ATEA outperforms TEA by an average of 51.68 % to 47.51 % for the avalanche effect, and 51.95 % to 48.36 % for the completeness test, and satisfies all the NIST requirements. Results of advanced security measurements indicate that, ATEA can be used to secure WSN devices.

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Section: Literature Reviewmentioning

confidence: 99%

Enhancement of Tiny Encryption Algorithm for Resource-Constrained WSNs Using Four Connected Additive Fibonacci Generators

Zyara,

Mhaibes,

Shallal

2024

JCSANDM

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“…This improvement increases the TES's security to some level. Their proposed work was tested using a completeness test and outperformed TEA [16].…”

Section: Related Workmentioning

confidence: 99%

“…Due to TEA's simple key scheduling, equivalent key attacks are possible. Numerous TEA modifications have been suggested over the last few years to solve the issue [14], [15], [16], [17].…”

Section: Introductionmentioning

confidence: 99%

Simple Lightweight Cryptographic Algorithm to Secure Imbedded IoT Devices

Mhaibes

Abood²,

Farhan³

2022

Int. J. Interact. Mob. Technol.

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The internet of things (IoT) revolution has been sparked by the exponential increase in connected devices caused by recent advances in wireless technology. These embedded devices gather, analyze, and send vast data via the network. Data transmission security is a primary problem in IoT networks. Several lightweight encryption/decryption algorithms have been developed for such resource-constraint devices. One of most effective and fast lightweight encryption algorithms for IoT applications is the Tiny Encryption Algorithm (TEA). TEA has few lines source of codes to implement and based on Feistel structure to provide cryptographic primitive confusion and diffusion features in order to hide statistical aspects of plaintext. However, it is vulnerable to assaults using equivalent and related key attacks. This study suggested modifying TEA by employing a new proposed generating keys function using two Linear Feedback Shift Registers (LFSRs) as a combination to address the security flaw caused by utilizing different keys for each round function. The key sensitivity, Avalanche effect, and a completeness test were used to evaluate its security performance. The key sensitivity of the proposed modified TEA outperforms original TEA by 50.18 % to 44.88 %. The modified TEA avalanche effect outperforms TEA by 52.57 % to 47.69 %, and its completeness test outperforms TEA by 51.75 % to 48.36 %. Experimental results indicates that, the encryption performance of proposed modified TEA is better than original TEA.

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