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An Innovative Approach Using TKN-cryptology for Identifying the Replay Assault

Computers, Materials & Continua 2024年第1期78卷 589-616页

作者： Syeda Wajiha Zahra Muhammad Nadeem Ali Arshad Saman Riaz Muhammad Abu Bakr Ashit Kumar Dutta Zaid Alzaid Badr Almutairi Sultan Almotairi Department of Computer Science Alhamd Islamic UniversityIslamabad44000Pakistan Department of Computer Science and Technology University of Science and Technology BeijingBeijing100083China Department of Computer Science National University of TechnologyIslamabad44000Pakistan Department of Electrical Engineering National University of TechnologyIslamabad44000Pakistan Department of Computer Science and Information Systems College of Applied SciencesAlMaarefa UniversityRiyadh13713Saudi Arabia Department of Computer Science Faculty of Computer and Information SystemsIslamic University of MadinahMedinah42351Saudi Arabia Department of Information Technology College of Computer Sciences and Information Technology CollegeMajmaah UniversityAl-Majmaah11952Saudi Arabia Department of Natural and Applied Sciences Faculty of Community CollegeMajmaah UniversityMajmaah11952Saudi Arabia

Various organizations store data online rather than on physical *** the number of user’s data stored in cloud servers increases,the attack rate to access data from cloud servers also *** researchers worked on different algorithms to protect cloud data from replay *** of the papers used a technique that simultaneously detects a full-message and partial-message replay *** study presents the development of a TKN(Text,Key and Name)cryptographic algorithm aimed at protecting data from replay *** program employs distinct ways to encrypt plain text[P],a user-defined Key[K],and a Secret Code[N].The novelty of the TKN cryptographic algorithm is that the bit value of each text is linked to another value with the help of the proposed algorithm,and the length of the cipher text obtained is twice the length of the original *** the scenario that an attacker executes a replay attack on the cloud server,engages in cryptanalysis,or manipulates any data,it will result in automated modification of all associated values inside the *** mechanism has the benefit of enhancing the detectability of replay ***,the attacker cannot access data not included in any of the papers,regardless of how effective the attack strategy *** the end of paper,the proposed algorithm’s novelty will be compared with different algorithms,and it will be discussed how far the proposed algorithm is better than all other algorithms.

关键词： Replay attack malware message attack file encryption cryptology data security

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Progress and Prospect of Some Fundamental Research on Information Security in China

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Journal of Computer Science & Technology 2006年第5期21卷 740-755页

作者：冯登国王小云 State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences Beijing 100080 P.R. China School of Mathematics and System Science Shandong University Jinan 250100 P.R. China

With the development of network and information technologies, information security is more and more widely researched in China. To know where the work is and where it goes, we focus on comprehensively surveying the twenty years of important fundamental research by Chinese scholars, and giving, from our point of view, the significance as well as the outlook of future work. Some of the reviewed work, including the researches on fundamental theory of cryptography, cryptographic algorithm, security protocol, security infrastructure and information hiding, greatly advances the related sub-fields, and is highly recognized in and outside of China. Nevertheless, the overall work, we think, is still facing the problems of unbalanced development of sub-areas, limited scope of research, lack of systematic work and application, etc., leaving much room for improvement in the near future.

关键词： cryptology security protocol security infrastructure information security

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Cryptanalysis of Achterbahn-Version 1 and-Version 2

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Journal of Computer Science & Technology 2007年第3期22卷 469-475页

作者：黄小莉武传坤 The State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

Achterbahn is one of the candidate stream ciphers submitted to the eSTREAM, which is the ECRYPT Stream Cipher Project. The cipher Achterbahn uses a new structure which is based on several nonlinear feedback shift registers （NLFSR） and a nonlinear combining output Boolean function. This paper proposes distinguishing attacks on Achterbahn-Version 1 and -Version 2 on the reduced mode and the full mode. These distinguishing attacks are based on linear approximations of the output functions. On the basis of these linear approximations and the periods of the registers, parity checks with noticeable biases are found. Then distinguishing attacks can be achieved through these biased parity checks. As to Achterbahn-Version 1, three cases that the output function has three possibilities are analyzed. Achterbahn-Version 2, the modification version of Achterbahn-Version 1, is designed to avert attacks based on approximations of the output Boolean function. Our attack with even much lower complexities on Achterbahn-Version 2 shows that Achterbahn-Version 2 cannot prevent attacks based on linear approximations.

关键词： cryptology cryptanalysis distinguishing attack stream cipher Achterbahn eSTREAM

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DNA-chip-based dynamic broadcast encryption scheme with constant-size ciphertexts and decryption keys

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Science China(Information Sciences) 2014年第9期57卷 126-135页

作者： FANG XiWen LAI XueJia Department of Computer Science and Engineering Shanghai Jiao Tong University

In this paper we present DNA-DBE,a DNA-chip-based dynamic broadcast encryption *** our scheme,new users can join dynamically without modification of other users’decryption *** the ciphertext or the decryption key is of *** secrecy is achieved in DNA-DBE:if new users join the system dynamically,they will not be able to retrieve past *** security of our scheme relies on hard biological problems,which are immune to attacks of new computing technologies in the *** exists a special feature in DNA–based cryptosystems,*** set of encryption keys and the set of decryption keys have a many-to-many *** implementation of more complicated DNA cryptosystems taking advantage of this special feature has been previously left as an open *** DNA-DBE system is a solution to this open problem,which is also the first exploration of DNA based group-oriented encryption system.

关键词： DNA cryptography dynamic broadcast encryption group oriented cryptography DNA chip cryptology

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Computing the k-error joint linear complexity of binary periodic multisequences

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The Journal of China Universities of Posts and Telecommunications 2013年第6期20卷 96-101页

作者： LI Fu-lin ZHU Shi-xin School of Mathematics Hefei University of Technology

Complexity measures for multisequences over finite fields, such as the joint linear complexity and the k-error joint linear complexity, play an important role in cryptology. In this paper we study a fast algorithm, presented by Venkateswarlu A, to computer the k-error joint linear complexity of a binary periodic multisequence. In this paper, the aim is mainly to complement the theoretical derivation and proof of the existing algorithm. Moreover, our algorithm reduces computation.

关键词： cryptology multisequence algorithm joint linear complexity k-error joint linear complexity

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Differential Attack on Five Rounds of the SC2000 Block Cipher

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Journal of Computer Science & Technology 2011年第4期26卷 722-731页

作者：吕继强 Department of Computer Science Ecole Normale Superieure45 Rue d'Ulm

The SC2000 block cipher has a 128-bit block size and a user key of 128, 192 or 256 bits, which employs a total of 6.5 rounds if a 128-bit user key is used. It is a CRYPTREC recommended e-government cipher in Japan. In this paper we address how to recover the user key from a few subkey bits of SC2000, and describe two 4.75-round differential characteristics with probability 2-126 of SC2000 and seventy-six 4.75-round differential characteristics with probability 2-127. Finally, we present a differential cryptanalysis attack on a 5-round reduced version of SC2000 when used with a 128-bit key; the attack requires 21256s chosen plaintexts and has a time complexity of 212575 5-round SC2000 encryptions. The attack does not threat the security of the full SC2000 cipher, but it suggests for the first time that the safety margin of SC2000 with a 128-bit key decreases below one and a half rounds.

关键词： cryptology block cipher SC2000 differential cryptanalysis

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Evolutionary cryptography against multidimensional linear cryptanalysis

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Science China(Information Sciences) 2011年第12期54卷 2585-2597页

作者： ZHANG HuanGuo 1,2 , LI ChunLei 1,2 & TANG Ming 1,2 1 School of Computer, Wuhan University, Wuhan 430079, China 2 Key Laboratory of Aerospace Information Security and Trusted Computing of Ministry of Education of China, Wuhan University, Wuhan 430079, China 1. School of Computer Wuhan University Wuhan 430079 China2. Key Laboratory of Aerospace Information Security and Trusted Computing of Ministry of Education of China Wuhan University Wuhan 430079 China

The evolutionary cryptosystem is a new cryptosystem proposed by a Chinese researcher recently. This paper studies its security level resisting against multidimensional linear cryptanalysis in this paper. It is shown that the evolutionary cryptosystem possesses higher resistance than its initial fixed cryptosystem does for resisting against multidimensional linear cryptanalysis. Multidimensional generalizations of Matsui's Algorithm 1 and Algorithm 2 based on log-likelihood ratio (LLR) statistics are introduced. By the relationship among the data complexity N , the bit advantage a and the success rate P S of these two multidimensional generalized algorithms, it is proven that more data is needed for attacking the evolutionary cryptosystem than that is needed for attacking its initial fixed cryptosystem when the bit advantage and success rate are identical. Moreover, it is shown that both time complexity and memory complexity for attacking the evolutionary cryptosystem are higher than that of attacking its initial fixed cryptosystem with the same data complexity. The research indicates that the evolutionary cryptosystem is more robust than its initial fixed cryptosystem against the multidimensional linear cryptanalysis.

关键词： information security cryptology evolutionary cryptosystem cryptanalysis multidimensional linear cryptanalysis

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Design theory and method of multivariate hash function

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Science China(Information Sciences) 2010年第10期53卷 1977-1987页

作者： WANG HouZhen 1,2 , ZHANG HuanGuo 1 , WU QianHong 1 , ZHANG Yu 1 , LI ChunLei 1 & ZHANG XinYu 1 1 The Key Laboratory of Aerospace Information Security and Trusted Computing, Ministry of Education, School of Computer, Wuhan University, Wuhan 430072, China 2 Key Laboratory of Mathematics Mechanization, Beijing 100080, China 1. The Key Laboratory of Aerospace Information Security and Trusted Computing Ministry of Education School of Computer Wuhan University Wuhan 430072 China2. Key Laboratory of Mathematics Mechanization Beijing 100080 China

This paper proposes a novel hash algorithm whose security is based on the multivariate nonlinear polynomial equations of NP-hard problem over a finite field and combines with HAIFA iterative framework. Over the current widely used hash algorithms, the new algorithm has the following advantages: its security is based on a recognized difficult mathematical problem; the hash length can be changed freely; its design can be automated such that users may construct specific hash function meeting the actual needs. Furthermore, we discuss the security, efficiency and performance of the new algorithm. Under some related difficult mathematical assumptions and theoretical analysis, the new algorithm is proven practical by the experiment results, and capable of achieving security of an ideal hash function by choosing suitable parameters. In addition, it can also be used as a pseudo-random number generator for the good randomness of its output.

关键词： cryptology hash function MQ problem multivariate polynomials

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Asymmetric encryption and signature method with DNA technology

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Science China(Information Sciences) 2010年第3期53卷 506-514页

作者： LAI XueJia1, LU MingXin2, QIN Lei3, HAN JunSong4 & FANG XiWen11Department of Computer Science & Engineering, Shanghai Jiao Tong University, Shanghai 200030, China 2School of National Information Security, Nanjing University, Nanjing 210093, China 3BIOCOMPLEX, 4915 Bathurst St. Unit# 209-366, ON M2R 1X9, Canada 4National Engineering Center for BioChip at Shanghai, Shanghai 201203, China 1. Department of Computer Science & Engineering Shanghai Jiao Tong University Shanghai 200030 China2. School of National Information Security Nanjing University Nanjing 210093 China3. BIOCOMPLEX 4915 Bathurst St. Unit# 209-366 Toronto ON M2R 1X9 Canada4. National Engineering Center for BioChip at Shanghai Shanghai 201203 China

This paper proposes DNA-PKC, an asymmetric encryption and signature cryptosystem by combining the technologies of genetic engineering and cryptology. It is an exploratory research of biological cryptology. Similar to conventional public-key cryptology, DNA-PKC uses two pairs of keys for encryption and signature, respectively. Using the public encryption key, everyone can send encrypted message to a specified user, only the owner of the private decryption key can decrypt the ciphertext and recover the message; in the signature scheme, the owner of the private signing key can generate a signature that can be verified by other users with the public verification key, but no else can forge the signature. DNA-PKC differs from the conventional cryptology in that the keys and the ciphertexts are all biological molecules. The security of DNA-PKC relies on diffcult biological problems instead of computational problems; thus DNA-PKC is immune from known attacks, especially the quantum computing based attacks.

关键词： cryptology asymmetric encryption digital signature biological cryptology DNA

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Survey of information security

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Science in China(Series F) 2007年第3期50卷 273-298页

作者： SHEN ChangXiang ZHANG HuangGuo FENG DengGuo CAO ZhenFu HUANG JiWu Computing Technology Institute of China Navy Beijing 100841 China School of Computer Wuhan University Wuhan 430072 China Institute of Software Chinese Academy of Sciences Beijing 100080 China Department of Computer Science and Technology Shanghai Jiaotong University Shanghai 200030China Information Technology Institute Zhongshan University Guangzhou 510275 China

The 21st century is the age of information when information becomes an important strategic resource. The information obtaining, processing and security guarantee capability are playing critical roles in comprehensive national power, and information security is related to the national security and social stability. Therefore, we should take measures to ensure the information security of our country. In recent years, momentous accomplishments have been obtained with the rapid development of information security technology. There are extensive theories about information security and technology. However, due to the limitation of length, this article mainly focuses on the research and development of cryptology, trusted computing, security of network, and information hiding, etc.

关键词： information security cryptology trusted computing network security information hiding

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