Public-Key Cryptography Based on Tropical Circular Matrices

Some public-key cryptosystems based on the tropical semiring have been proposed in recent years because of their increased efficiency, since the multiplication is actually an ordinary addition of numbers and there is no ordinary multiplication of numbers in the tropical semiring. However, most of th...

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Main Authors: Huawei Huang, Chunhua Li, Lunzhi Deng
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/15/7401
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author Huawei Huang
Chunhua Li
Lunzhi Deng
author_facet Huawei Huang
Chunhua Li
Lunzhi Deng
author_sort Huawei Huang
collection DOAJ
description Some public-key cryptosystems based on the tropical semiring have been proposed in recent years because of their increased efficiency, since the multiplication is actually an ordinary addition of numbers and there is no ordinary multiplication of numbers in the tropical semiring. However, most of these tropical cryptosystems have security defects because they adopt a public matrix to construct commutative semirings. This paper proposes new public-key cryptosystems based on tropical circular matrices. The security of the cryptosystems relies on the NP-hard problem of solving tropical nonlinear systems of integers. Since the used commutative semiring of circular matrices cannot be expressed by a known matrix, the cryptosystems can resist KU attacks. There is no tropical matrix addition operation in the cryptosystem, and it can resist RM attacks. The new cryptosystems can be considered as a potential post-quantum cryptosystem.
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spelling doaj.art-13ec70b819444bd6b2f229a2eb1d6a512023-12-03T12:26:58ZengMDPI AGApplied Sciences2076-34172022-07-011215740110.3390/app12157401Public-Key Cryptography Based on Tropical Circular MatricesHuawei Huang0Chunhua Li1Lunzhi Deng2School of Mathematical Sciences, Guizhou Normal University, Guiyang 550025, ChinaSchool of Science, East China Jiaotong University, Nanchang 330013, ChinaSchool of Mathematical Sciences, Guizhou Normal University, Guiyang 550025, ChinaSome public-key cryptosystems based on the tropical semiring have been proposed in recent years because of their increased efficiency, since the multiplication is actually an ordinary addition of numbers and there is no ordinary multiplication of numbers in the tropical semiring. However, most of these tropical cryptosystems have security defects because they adopt a public matrix to construct commutative semirings. This paper proposes new public-key cryptosystems based on tropical circular matrices. The security of the cryptosystems relies on the NP-hard problem of solving tropical nonlinear systems of integers. Since the used commutative semiring of circular matrices cannot be expressed by a known matrix, the cryptosystems can resist KU attacks. There is no tropical matrix addition operation in the cryptosystem, and it can resist RM attacks. The new cryptosystems can be considered as a potential post-quantum cryptosystem.https://www.mdpi.com/2076-3417/12/15/7401cryptographic algorithmkey exchange protocolpublic-key encryption schemetropical algebratropical circular matrices
spellingShingle Huawei Huang
Chunhua Li
Lunzhi Deng
Public-Key Cryptography Based on Tropical Circular Matrices
Applied Sciences
cryptographic algorithm
key exchange protocol
public-key encryption scheme
tropical algebra
tropical circular matrices
title Public-Key Cryptography Based on Tropical Circular Matrices
title_full Public-Key Cryptography Based on Tropical Circular Matrices
title_fullStr Public-Key Cryptography Based on Tropical Circular Matrices
title_full_unstemmed Public-Key Cryptography Based on Tropical Circular Matrices
title_short Public-Key Cryptography Based on Tropical Circular Matrices
title_sort public key cryptography based on tropical circular matrices
topic cryptographic algorithm
key exchange protocol
public-key encryption scheme
tropical algebra
tropical circular matrices
url https://www.mdpi.com/2076-3417/12/15/7401
work_keys_str_mv AT huaweihuang publickeycryptographybasedontropicalcircularmatrices
AT chunhuali publickeycryptographybasedontropicalcircularmatrices
AT lunzhideng publickeycryptographybasedontropicalcircularmatrices