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DeCrypt: a 3DES inspired optimised cryptographic algorithm

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Abstract

Triple Data Encryption Standard (also known as 3DES) is a symmetric encryption algorithm. European Traffic Management System popularly uses 3DES for authentication and encryption. However, as per a draft published by NIST in 2018, 3DES is officially being retired and not suggested to use for new applications. Several attacks were imposed on 3DES, and the biggest threat to 3DES is meet in the middle attack. Therefore for long term security, it is essential to enhance the security of such algorithms. This paper proposed a new cipher DeCrypt inspired by 3DES, an improved version of the 3DES algorithm, and secured against meet in the middle attack. As per the experiment performed, DeCrypt cipher is 61 per cent faster than 3DES, providing long-term and better security against sweet-32 attacks than other symmetric algorithms. The proposed algorithm is also faster than 3DES due to reduced encryption and decryption time.

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Funding

The work of Ashutosh Dhar Dwivedi is supported by the Independent Research Fund Denmark for Technology and Production under Grant 8022-00348A. Waleed Al-Numay acknowledges financial support from the Researchers Supporting Project number (RSP-2021/250), King Saud University, Riyadh, Saudi Arabia.

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Correspondence to Ashutosh Dhar Dwivedi.

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Chowdhury, D., Dey, A., Garai, R. et al. DeCrypt: a 3DES inspired optimised cryptographic algorithm. J Ambient Intell Human Comput 14, 4745–4755 (2023). https://doi.org/10.1007/s12652-022-04379-7

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  • DOI: https://doi.org/10.1007/s12652-022-04379-7

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