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Breaching Security of Full Round tiny encryption algorithm

INTERNATIONAL JOURNAL OF INFORMATION SECURITY AND PRIVACY 2018年第1期12卷 89-98页

作者： Kaushal, Puneet Kumar Sobti, Rajeev Lovely Profess Univ Phagwara Punjab India

tiny encryption algorithm is a 64-bit block cipher designed by Wheeler and Needham in 1994 and attracted much of its attention due to its capability of reducing the hardware cost. In this paper, we introduced coincidence count attack at bit level, a kind of known-plaintext attack and evaluated the resistance of TEA to withstand with it. We also examined confrontation of full round TEA against bit sum attack. Furthermore, we introduced a modest algorithm based on coincidence count and bit sum concept that makes it easy to find relevant plaintext corresponding to an arbitrary cipher text with a probability of 0.93. We also presented how cipher text originated from tiny encryption algorithm can be distinguished from a random permutation of binary sequence.

关键词： Bit Sum Attack Coincidence Count Cryptanalysis tiny encryption algorithm

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Demitasse: A "Small" Version of the tiny encryption algorithm and Its Use in a Classroom Setting

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CRYPTOLOGIA 2013年第1期37卷 74-83页

作者： Holden, Joshua Rose Hulman Inst Technol Dept Math Terre Haute IN 47803 USA

This article describes Demitasse, a cipher that is intended to be used by inexperienced students in a classroom setting. The cipher is based on the tiny encryption algorithm, but the parameters have been reduced in order to allow the students to operate the cipher with paper and pencil rather than a computer. Nevertheless, students using the cipher should gain some understanding into the inner workings of a modern computer cipher. An example of the use of Demitasse in the classroom is also discussed.

关键词： course development teaching cryptography tiny encryption algorithm toy ciphers

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Further study on the Rulkov neuron: geometric control, circuit realization and chaos-based encryption

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PHYSICA SCRIPTA 2024年第7期99卷 075204-075204页

作者： Xia, Ming Li, Chunbiao Li, Yongxin Li, Peiran Khan, Awais Nanjing Univ Informat Sci & Technol Changwang Sch Honors Nanjing 210044 Peoples R China Nanjing Univ Informat Sci & Technol Sch Artificial Intelligence Nanjing 210044 Peoples R China

Rulkov neuron with various firing modes is exhaustively explored by numerical simulation aiming to disclose its unique properties of evolution. Transient chaos and the coexistence of periodic state and chaos are found. Furthermore, it is found that the chaotic attractors in the neuron can also be arranged flexibly in phase space by a single offset booster, while the amplitude of firings is rescaled by an independent amplitude controller. Circuit implementation based on MCU is carried out demonstrating the predicted dynamics. Confidentiality and security of data play an important role in safeguarding national production and livelihood. In this paper, the chaotic firing is introduced into the tiny encryption algorithm (TEA) for image encryption based on MCU combined with metrics analysis. It is proven that the Chaos-based tiny encryption algorithm (ChaosTEA) exhibits higher efficiency and security compared to the traditional TEA algorithm.

关键词： chaotic rulkov neuron offset boosting amplitude control tiny encryption algorithm

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Bi primitive switching crypto system with key generation mechanism for secure applications

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JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 2014年第4期37卷 547-555页

作者： Bevi, A. Ruhan Malarvizhi, S. SRM Univ Dept ECE Madras 603203 Tamil Nadu India

Ensuring security to the information transaction is a major challenge in the communication environment. The choice to guarantee the data transfer using a ciphering algorithm leads to high cost and complexity. The software-based implementations of cryptographic algorithms are easy to design and operate, but the performance penalty paid is high. The hardware implementations of cryptographic algorithms are considered as a task involving intensive computation and evaluation. Microcontroller-based applications for the same prove to be good solutions to the problem for cost-optimized applications. This paper aims to design, implement, and test a microcontroller (AT89c51)-based crypto system using the tiny encryption algorithm and the Extended tiny encryption algorithm as security primitives. The real-time data can be processed with scheduling of the primitives and the context switching between the primitives reduces the probability of being attacked. The keys for the crypto system are generated using internal timers of the microcontroller. The data to be transmitted are encrypted with any one of the security primitives with the generated key and the encrypted data are transmitted both in wired and wireless modes. At the receiving end, the received data are decrypted and the performance of the crypto system is evaluated on the basis of throughput, code size used, and execution time.

关键词： tiny encryption algorithm extended tiny encryption algorithm security primitive key generation unit context switching crypto system

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Analysis of Security Problems in Groups of Intelligent Sensors 12th

Analysis of Security Problems in Groups of Intelligent Senso...

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12th International Conference on Swarm Intelligence (ICSI)

作者： Grigoryan, Karen Olefirenko, Evgeniya Basan, Elena Lapina, Maria Mecella, Massimo Southern Fed Univ Chekova St 2 Taganrog 347922 Russia North Caucasus Fed Univ Pushkina St 1 Stavropol 355000 Russia Sapienza Univ Rome Via Ariosto 25 I-00185 Rome Italy

ISBN: (纸本)9783030787424;9783030787431

Today, the creation of intelligent sensors became possible due to the development of the hardware base, the use of small boards, where the processor, memory, and network interfaces can be placed. Examples of such cards can be Raspberry Pi, Arduino, and others. These devices can be used to connect various sensors to them depending on the tasks. Today, there are many protocols for the exchange of messages between such sender devices, which ultimately leads to the creation of distributed networks with distributed functionality. Such systems can be decision-making and are like swarm intelligence, where each device performs its functions, but together they are a single system. This study will examine the information security issues of such systems. An analysis of threats and vulnerabilities for intelligent sensor systems was carried out. Demonstrated an attack on the secure ZigBee protocol, which is often used to create a network between smart sensors. The use of lightweight cryptography to minimize risks is proposed.

关键词： Internet of Things (IoT) Cipher Cryptography LWC SPECK tiny encryption algorithm

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FPGA Based Implementation Scenarios of TEA Block Cipher 13

FPGA Based Implementation Scenarios of TEA Block Cipher

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13th International Conference Frontiers Information Technology (FIT 2015)

作者： Hussain, Muhammad Awais Badar, Rabiah Namal Coll Dept Elect Engn Mianwali Pakistan COMSATS Inst Informat Technol Dept Elect Engn Islamabad Pakistan

ISBN: (纸本)9781509003297

Transmission of sensitive data over some channel is a highly security constrained scenario and thus demands the application of some encryption algorithm. It is better to implement the algorithm in hardware as compared to software due to better computational speed and memory usage. tiny encryption algorithm known as TEA block cipher is a lightweight and efficient cryptographic algorithm, well suited for wireless communication systems. This paper presents the successful implementation of TEA on FPGA for different design approaches to analyze the performance and resource utilization against each design approach.

关键词： tiny encryption algorithm encryption Fiestel HDL FPGA

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High Throughput Implementations of Cryptography algorithms on GPU and FPGA

High Throughput Implementations of Cryptography algorithms o...

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IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

作者： Venugopal, Vivek Shila, Devu Manikantan United Technol Res Ctr E Hartford CT 06108 USA

ISBN: (纸本)9781467346214

Cryptography algorithms are ranked by their speed in encrypting/decrypting data and their robustness to withstand attacks. Real-time processing of data encryption/decryption is essential in network based applications to keep pace with the input data inhalation rate. The encryption/decryption steps are computationally intensive and exhibit high degree of parallelism. Field programmable gate arrays (FPGA) and graphics processing units (GPU) are being employed as cryptographic coprocessors to target different cryptography algorithms. In this paper, we target different encryption algorithms (TEA and XTEA) on GPU and FPGA platforms. We investigate the performance of the algorithms in terms of latency, throughput, gate equivalence, cost and ease of mapping on both platforms. We employ optimization techniques to realize high throughput in our custom configured implementations for coarse-grained parallel architectures. We propose a tool called Cryptographic Hardware Acceleration and Analysis Tool (CHAAT) that selects an optimal algorithm depending on the user's constraints with respect to hardware utilization, cost and security.

关键词： tiny encryption algorithm cryptography field programmable gate arrays parallel processing graphics processing units

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Hardware acceleration of TEA and XTEA algorithms on FPGA, GPU and multi-core processors (abstract only) 13

Hardware acceleration of TEA and XTEA algorithms on FPGA, GP...

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Proceedings of the ACM/SIGDA international symposium on Field programmable gate arrays

作者： Vivek Venugopal Devu Manikantan Shila United Technologies Research Center E Hartford CT USA

ISBN: (纸本)9781450318877

Field programmable gate arrays (FPGA) are extensively used for rapid prototyping in embedded system applications. While hardware acceleration can be done via specialized processors like a Graphical Processing Unit (GPU), they can also be accomplished with FPGAs for more specialized scenarios. GPUs essentially consist of massively parallel cores and have high memory bandwidth; FPGAs, on the other hand, provide flexibility in terms of customizable I/O and computational resources. In this paper, we explore the usage of GPUs and FPGAs as cryptographic co-processors in streaming dataflow systems with huge rate of data inhalation. Two classic lightweight encryption algorithms, tiny encryption algorithm (TEA) and Extended tiny encryption algorithm (XTEA), are targeted for implementation on GPUs and FPGAs. The GPU implementations of TEA and XTEA in this study depict a maximum speedup of 13x over CPU based implementation. The pipelined FPGA implementation is able to realize a throughput of 6-9x more than the GPU for small plaintext sizes.

关键词： cryptography graphics processing units tiny encryption algorithm field programmable gate arrays parallel processing

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High Throughput Implementations of Cryptography algorithms on GPU and FPGA

High Throughput Implementations of Cryptography algorithms o...

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IEEE International Instrumentation and Measurement Technology Conference

作者： Vivek Venugopal Devu Manikantan Shila United Technologies Research Center 411 Silver Lane E Hartford CT USA

ISBN: (纸本)9781467346214

关键词： tiny encryption algorithm cryptography field programmable gate arrays parallel processing graphics processing units

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