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2 February 2023 Encryption algorithm based on Lagrange interpolation
YinQing Fang, LianYou Lai
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Proceedings Volume 12462, Third International Symposium on Computer Engineering and Intelligent Communications (ISCEIC 2022); 1246231 (2023) https://doi.org/10.1117/12.2660779
Event: International Symposium on Computer Engineering and Intelligent Communications (ISCEIC 2022), 2022, Xi'an, China
Abstract
This paper attempts to improve the classical encryption algorithm by using Lagrange interpolation method. A large positive integer is used to represent plaintext, that is, we can use plaintext as a positive integer to carry out Lagrange calculation. Because ciphertext is a big positive integer, not repeatable, it is impossible to analyze ciphertext by probability. The algorithm increases the key space and the difficulty of brute force cracking. This algorithm has the security of one-time pad. The length of the key can be less than the length of the plaintext, and the choice of the key is more flexible.
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YinQing Fang and LianYou Lai "Encryption algorithm based on Lagrange interpolation", Proc. SPIE 12462, Third International Symposium on Computer Engineering and Intelligent Communications (ISCEIC 2022), 1246231 (2 February 2023); https://doi.org/10.1117/12.2660779
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KEYWORDS
Computer security
Cryptography
Information security
Cryptanalysis
Information technology
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