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Artykuły w czasopismach na temat "Lightweight Encryption Cipher"
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Mishra, Girish, S. K. Pal, S. V. S. S. N. V. G. Krishna Murthy, Kanishk Vats, and Rakshak Raina. "Distinguishing Lightweight Block Ciphers in Encrypted Images." Defence Science Journal 71, no. 5 (2021): 647–55. http://dx.doi.org/10.14429/dsj.71.16843.
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Modern day lightweight block ciphers provide powerful encryption methods for securing IoT communication data. Tiny digital devices exchange private data which the individual users might not be willing to get disclosed. On the other hand, the adversaries try their level best to capture this private data. The first step towards this is to identify the encryption scheme. This work is an effort to construct a distinguisher to identify the cipher used in encrypting the traffic data. We try to establish a deep learning based method to identify the encryption scheme used from a set of three lightweight block ciphers viz. LBlock, PRESENT and SPECK. We make use of images from MNIST and fashion MNIST data sets for establishing the cryptographic distinguisher. Our results show that the overall classification accuracy depends firstly on the type of key used in encryption and secondly on how frequently the pixel values change in original input image.
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Matheis, Kenneth, Rainer Steinwandt, and Adriana Suárez Suárez Corona. "Algebraic Properties of the Block Cipher DESL." Symmetry 11, no. 11 (2019): 1411. http://dx.doi.org/10.3390/sym11111411.
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The Data Encryption Standard Lightweight extension (DESL) is a lightweight block cipher which is very similar to DES, but unlike DES uses only a single S-box. This work demonstrates that this block cipher satisfies comparable algebraic properties to DES—namely, the round functions of DESL generate the alternating group and both ciphers resist multiple right-hand sides attacks.
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Kim, Hyunjun, Siwoo Eum, Wai-Kong Lee, Sokjoon Lee, and Hwajeong Seo. "Secure and Robust Internet of Things with High-Speed Implementation of PRESENT and GIFT Block Ciphers on GPU." Applied Sciences 12, no. 20 (2022): 10192. http://dx.doi.org/10.3390/app122010192.
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With the advent of the Internet of Things (IoT) and cloud computing technologies, vast amounts of data are being created and communicated in IoT networks. Block ciphers are being used to protect these data from malicious attacks. Massive computation overheads introduced by bulk encryption using block ciphers can become a performance bottleneck of the server, requiring high throughput. As the need for high-speed encryption required for such communications has emerged, research is underway to utilize a graphics processor for encryption processing based on the high processing power of the GPU. Applying bit-slicing of lightweight ciphers was not covered in the previous implementation of lightweight ciphers on GPU architecture. In this paper, we implemented PRESENT and GIFT lightweight block ciphers GPU architectures. It minimizes the computation overhead caused by optimizing the algorithm by applying the bit-slicing technique. We performed practical analysis by testing practical use cases. We tested PRESENT-80, PRESENT-128, GIFT-64, and GIFT-128 block ciphers in RTX3060 platforms. The throughput of the exhaustive search are 553.932 Gbps, 529.952 Gbps, 583.859 Gbps, and 214.284 Gbps for PRESENT-80, PRESENT-128, GIFT-64, and GIFT-128, respectively. For the case of data encryption, it achieved 24.264 Gbps, 24.522 Gbps, 85.283 Gbps, and 10.723 Gbps for PRESENT-80, PRESENT-128, GIFT-64, and GIFT-128, respectively. Specifically, the proposed implementation of a PRESENT block cipher is approximately 4× higher performance than the latest work that implements PRESENT block cipher. Lastly, the proposed implementation of a GIFT block cipher on GPU is the first implementation for the server environment.
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Sayyed, Karishma Shaukat, Prof S. R. Ganolkar, and Prof S. O. Rajankar. "FPGA Implementation of Rectangle Lightweight Block Cipher." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 2426–33. http://dx.doi.org/10.22214/ijraset.2022.42143.
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Abstract: Block ciphers are basic building blocks for network security. In recent years, designing a lightweight block cipher is the main goal of VLSI design engineers. In this paper, we have designed and verified the functionality of the RECTANGLE block cipher which is one of the lightweight block cipher using Modelsim simulator and implemented using Intel Quartus Prime 18.0 FPGA device. Using the bit-slice technique a RECTANGLE block cipher allows lightweight and fast implementations. The en-cryption architecture has two parts one is round transformation and the other is key scheduling. RECTANGLE uses Substitution-Permutation network. It takes 64-bit plain text and an 80-bit key as an input and converts it into a 64-bit ciphertext. There are three main advantages of using the RECTANGLE block cipher. First, it has a simple design. Second, it is very hardware friendly. By selecting the proper S-block RECTANGLE can achieve good security performance. Index Terms: Lightweight Block Cipher, Block Ciphers, Encryption, Bit-slice technique, Round Transformation, Key Scheduling, Substitution Block, Permutation Block.
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Zakaria, Abdul Alif, Azni Haslizan Ab Halim, Farida Ridzuan, Nur Hafiza Zakaria, and Maslina Daud. "LAO-3D: A Symmetric Lightweight Block Cipher Based on 3D Permutation for Mobile Encryption Application." Symmetry 14, no. 10 (2022): 2042. http://dx.doi.org/10.3390/sym14102042.
Pełny tekst źródłaStreszczenie:
Data transmissions between smartphone users require security solutions to protect communications. Hence, encryption is an important tool that must be associated with smartphones to keep the user’s data safe. One proven solution to enhance the security of encryption algorithms is by using 3D designs on symmetric block ciphers. Although a 3D cipher design could improve the algorithms, the existing methods enlarge the block sizes that will also expand the key sizes and encryption rounds, thus decreasing their efficiency. Therefore, we propose the LAO-3D block cipher using a 3D permutation that offers security by providing confusion and diffusion characteristics. Five security analyses were conducted to assess the strengths of LAO-3D. The findings suggest that LAO-3D achieves better results compared to other existing lightweight block ciphers, with 98.2% non-linearity, 50% bit error rates for both plaintext and key modifications, surpasses 100% of the randomness test, and is immune to differential and linear cryptanalysis attacks. Moreover, the block cipher obtains competitive performance results in software applications. From the security analyses and performance tests, it is proven that LAO-3D can provide sufficient security at low costs in mobile encryption applications.
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Wang, Juan, and Qun Ding. "Dynamic Rounds Chaotic Block Cipher Based on Keyword Abstract Extraction." Entropy 20, no. 9 (2018): 693. http://dx.doi.org/10.3390/e20090693.
Pełny tekst źródłaStreszczenie:
According to the keyword abstract extraction function in the Natural Language Processing and Information Retrieval Sharing Platform (NLPIR), the design method of a dynamic rounds chaotic block cipher is presented in this paper, which takes into account both the security and efficiency. The cipher combines chaotic theory with the Feistel structure block cipher, and uses the randomness of chaotic sequence and the nonlinearity of chaotic S-box to dynamically generate encrypted rounds, realizing more numbers of dynamic rounds encryption for the important information marked by NLPIR, while less numbers of dynamic rounds encryption for the non-important information that is not marked. Through linear and differential cryptographic analysis, ciphertext information entropy, “0–1” balance and National Institute of Science and Technology (NIST) tests and the comparison with other traditional and lightweight block ciphers, the results indicate that the dynamic variety of encrypted rounds can achieve different levels of encryption for different information, which can achieve the purpose of enhancing the anti-attack ability and reducing the number of encrypted rounds. Therefore, the dynamic rounds chaotic block cipher can guarantee the security of information transmission and realize the lightweight of the cryptographic algorithm.
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Antal, Eugen, and Viliam Hromada. "A NEW STREAM CIPHER BASED ON FIALKA M-125." Tatra Mountains Mathematical Publications 57, no. 1 (2013): 101–18. http://dx.doi.org/10.2478/tmmp-2013-0038.
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ABSTRACT In 2010, a new cipher Hummingbird by [Engels, D.-Fan, X.- -Gong, G.-Hu, H.-Smith, E. M. Hummingbird: Ultra-Lightweight Cryptography for Resource-Constrained Devices, in: 1st International Workshop on Lightweight Cryptography for Resource-Constrained Devices. Tenerife, Canary Islands, Spain, January 2010] was proposed. It is a combination of both block and stream cipher and its design was inspired and motivated by the Enigma machine. The encryption process of the cipher can be considered as a continuous running of a rotor-cipher. Four block ciphers play the role of the rotors that apply the permutation to the 16-bit words. This cipher motivated us to investigate a new cipher design based on a Fialka cipher machine. Fialka M-125 is an Enigma based rotor-cipher machine used during the Cold War. It is considered one of the most secure cipher machines. Advantages of this cipher are based on the elimination of the Enigma’s known weaknesses. There are no known attacks on this cipher. In this paper we introduce a new cipher based on the Fialka machine. We transform the Fialka encryption algorithm to a modern stream cipher. The rotors are represented as S-boxes and shift registers are used to provide the rotor clocking. We propose three different versions of the cipher and investigate the statistical properties of their outputs. In the article we also provide basic implementation details and basic performance analysis.
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Zhang, Ping, and Qian Yuan. "Minimizing Key Materials: The Even–Mansour Cipher Revisited and Its Application to Lightweight Authenticated Encryption." Security and Communication Networks 2020 (March 10, 2020): 1–6. http://dx.doi.org/10.1155/2020/4180139.
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The Even–Mansour cipher has been widely used in block ciphers and lightweight symmetric-key ciphers because of its simple structure and strict provable security. Its research has been a hot topic in cryptography. This paper focuses on the problem to minimize the key material of the Even–Mansour cipher while its security bound remains essentially the same. We introduce four structures of the Even–Mansour cipher with a short key and derive their security by Patarin’s H-coefficients technique. These four structures are proven secure up to O˜2k/μ adversarial queries, where k is the bit length of the key material and μ is the maximal multiplicity. Then, we apply them to lightweight authenticated encryption modes and prove their security up to about minb/2,c,k−log μ-bit adversarial queries, where b is the size of the permutation and c is the capacity of the permutation. Finally, we leave it as an open problem to settle the security of the t-round iterated Even–Mansour cipher with short keys.
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Fan, Ting, Lingchen Li, Yongzhuang Wei, and Enes Pasalic. "Differential cryptanalysis of full-round ANU-II ultra-lightweight block cipher." International Journal of Distributed Sensor Networks 18, no. 9 (2022): 155013292211193. http://dx.doi.org/10.1177/15501329221119398.
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Lightweight ciphers are often used as the underlying encryption algorithm in resource-constrained devices. Their cryptographic security is a mandatory goal for ensuring the security of data transmission. Differential cryptanalysis is one of the most fundamental methods applicable primarily to block ciphers, and the resistance against this type of cryptanalysis is a necessary design criterion. ANU-II is an ultra-lightweight block cipher proposed in 2017, whose design offers many advantages such as the use of fewer hardware resources (logic gates), low power consumption and fast encryption for Internet of Things devices. The designers of ANU-II claimed its resistance against differential cryptanalysis and postulated that the design is safe enough for Internet of Things devices. However, as addressed in this article, the security claims made by designers appear not to be well grounded. Using mixed-integer linear programming–like techniques, we identify one-round differential characteristic that holds with probability 1, which is then efficiently employed in mounting the key recovery attack on full-round ANU-II with only 22 chosen plaintexts and 262.4 full-round encryptions. The result shows that the designers’ security evaluation of ANU-II against differential cryptanalysis is incorrect and the design rationale is flawed. To remedy this weakness, we provide an improved variant of ANU-II, which has much better resistance to differential cryptanalysis without affecting the hardware and/or software implementation cost.
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Al-Omari, A. H. "Lightweight Dynamic Crypto Algorithm for Next Internet Generation." Engineering, Technology & Applied Science Research 9, no. 3 (2019): 4203–8. http://dx.doi.org/10.48084/etasr.2743.
Pełny tekst źródłaStreszczenie:
Modern applications, especially real time applications, are hungry for high-speed end-to-end transmission which usually conflicts with the necessary requirements of confidential and secure transmission. In this work, a relatively fast, lightweight and attack-resistant crypto algorithm is proposed. The algorithm is a symmetric block cipher that uses a secure pre-shared secret as the first step. Then, a dynamic length key is generated and inserted inside the cipher text. Upon receiving the cipher text, the receiver extracts the key from the received cipher text to decrypt the message. In this algorithm, ciphering and deciphering are mainly based on simple XoR operations followed by substitutions and transpositions in order to add more confusion and diffusion to the algorithm. Experimental results show faster encryption/decryption time when compared to known encryption standards.