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2015 Workshop 5

作者： Tie-Ming Liu Lie-Hui Jiang Jing Jing Yuan-Yuan Zhang The State Key Laboratory of Mathematical Engineering and Advanced Computing

When doing reverse analysis of program's binary codes, it is often to encounter the function of cryptographic *** order to reduce workload, a cryptographic library model has been de-signed by *** use formalized approach to describe the frame of cryptology and the structure of cryptographic function, complete the mapping from cryptographic function property to its architecture, and accomplish the result presentation of data analysis and mapping at *** model can solve two problems: the first one is to know the hierarchy of the cryptographic function in the library well;the second one is to know some kinds of information, such as related cryptology algorithm and protocol, *** function implements can display the result *** model can find relevant knowledge for the analysts automatically and rapidly, which is helpful to the learning of the overall abstract structure of cryptology.

关键词： cryptographic Library Model cryptographic Library Architecture cryptographic algorithm Encryption and Decryption Keys Encryption and Decryption Data Information Recovery

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COOPERATIVE RECONFIGURATION OF USER INTERFACE MODELS FOR LEARNING cryptographic PROTOCOLS

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INTERNATIONAL JOURNAL OF INFORMATION TECHNOLOGY & DECISION MAKING 2012年第6期11卷 1127-1154页

作者： Weyers, Benjamin Luther, Wolfram Baloian, Nelson U Duisburg Essen Dept Comp & Cognit Sci D-47057 Duisburg Germany Univ Chile Dept Comp Sci Santiago Chile

Cooperative work in learning environments has been shown to be a successful extension to traditional learning systems due to the great impact of cooperation on students' motivation and learning success. A recent evaluation study has confirmed our hypothesis that students who constructed their roles in a cryptographic protocol cooperatively as sequence of actions in a user interface were faster in finding a correct solution than students who worked on their own. Here, students of a cooperation group modeled a user interface collaboratively for simulation of a cryptographic protocol using interactive modeling tools on a shared touch screen. In this paper, we describe an extended approach to cooperative construction of cryptographic protocols. Using a formal language for modeling and reconfiguring user interfaces, students describe a protocol step-by-step, modeling subsequent situations and thereby actions of the protocol. The system automatically generates a colored Petri net, which is matched against an existing action logic specifying the protocol, thus allowing formal validation of the construction process. The formal approach to modeling of user interfaces covers a much broader field than a simple cryptographic protocol simulation. Still, this paper seeks at investigating the use of such a formal modeling approach in the context of cooperative learning of cryptographic protocols and to develop a basis for more complex learning scenarios.

关键词： Cooperative construction cryptographic algorithm learning environment dialog and interaction logic modeling

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A Method of cryptographically Strong Pseudorandom Sequences Generation Based on the Blender 15

A Method of Cryptographically Strong Pseudorandom Sequences ...

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15th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2023

作者： Grozov, Vladimir Guirik, Alexei Budko, Mikhail ITMO University Department of Secure Information Technologies St. Petersburg Russia

ISBN: (纸本)9798350393286

The paper deals with a method for generating cryptographic pseudorandom sequences (PRSs) applicable in data security tasks in cyber-physical systems. The following methods were used in the study: PRS generation based on cryptographic algorithms in accordance with the recommendations of NIST SP 800-90;PRS testing methods (NIST 800-22 and NIST 800-90B tests);methods and tools for evaluating the quality of pseudorandom sequences using min-entropy, Pearson criterion and linear complexity. A method for generating cryptographically strong PRSs that consists of arbitrary length blocks is proposed. The key component of the proposed method is a special randomness extractor function called blender. In addition, elements of the key expansion mechanism of 'Kuznyechik' cipher (Russian GOST R 34.12-2015) are embedded in the generation scheme. A number of modifications to the original algorithm were made. An increase in cryptographic strength is achieved with the help of individual keys during the output PRS blocks formation. Additional randomness is introduced due to a special structure of iterative constants that use key information. Evaluation of the output sequences quality confirms the operability and efficiency of the proposed generation method. © 2023 IEEE.

关键词： blender cryptographic algorithm cryptographic strength individual key pseudorandom sequence

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Generování prvočísel pomocí hardware

Generování prvočísel pomocí hardware

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作者： Kabelková, Barbora Brno University of Technology

Bakalářská práce se zabývá problematikou prvočísel a jejich generováním. Stručně definuje prvočísla a poukazuje na význam bezpečných prvočísel v kryptografi... 详细信息

Bakalářská práce se zabývá problematikou prvočísel a jejich generováním. Stručně definuje prvočísla a poukazuje na význam bezpečných prvočísel v kryptografii. Uvádí příklady asymetrických šifer a podrobně rozebírá algoritmus RSA. Dále představuje vybrané pseudonáhodné a náhodné metody generování posloupností čísel a porovnává jejich vlastnosti. Hodnotí nejznámější pravděpodobnostní a skutečné testy prvočíselnosti na základě efektivity jejich aplikace v praxi. Navrhuje různé kombinace těchto testů s metodami generování a vybírá z nich jednu k implementaci na platformě FPGA. Práce popisuje implementaci generátoru, který využívá von Neumannovu metodu středních řádů pro vygenerování posloupnosti čísel, a následně Miller-Rabinovým testem vyhodnocuje, která z generovaných čísel jsou prvočísly. Slovně i schematicky jsou rozebrány nejdůležitější procesy, které takto navržený generátor vykonává. Návrh generátoru je simulován a syntetizován v prostředí Xilinx Viavado. Jednotlivé části generátoru jsou otestovány pomocí několika behaviorálních simulací. Na závěr práce komentuje průběh simulací a hodnotí vlastnosti navržené implementace generátoru.

关键词： asymetrická šifra FPGA hardwarový generátor kryptografický algoritmus PRNG prvočíslo test prvočíselnosti TRNG VHD asymmetric cipher FPGA hardware generator cryptographic algorithm PRNG primenumber prime test TRNG VHDL Text

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A systematic review on elliptic curve cryptography algorithm for internet of things: Categorization, application areas, and security

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COMPUTERS & ELECTRICAL ENGINEERING 2024年第PartA期118卷

作者： Adeniyi, Abidemi Emmanuel Jimoh, Rasheed Gbenga Awotunde, Joseph Bamidele Bowen Univ Dept Comp Sci Iwo Nigeria Univ Ilorin Dept Comp Sci Ilorin Nigeria

Cyberattacks on the Internet of Things (IoT) may be avoided by implementing cybersecurity protocols on IoT devices, platform packages, and Internet tools. A significant problem is developing a simple security mechanism suitable for resource-constrained IoT devices. Elliptic curve cryptography (ECC) is extensively utilized and well-suited for use in low-resource environments like smartphone devices. ECC utilizes short crypto keys with the same security strength as conventional cryptosystems, decreasing power consumption and enhancing device efficiency. This study comprehensively evaluates ECC data privacy and security techniques in IoT-based devices. The research also looked into other cryptography protocols that ECC may use to increase security and performance. The inclusion procedures were papers published between 2018 and 2023, written in English, and published in a peer-reviewed scholarly outlet. This research eventually reviewed 61 suitable publications in total. Compared to other cryptographic methods, the study discovered that ECC has received greater attention or is frequently employed in IoT-based systems. However, additional issues and concerns must be addressed, including efficient IoT device security, maintaining privacy, and device security against vulnerability assaults such as man-inthe-middle attacks. For the efficient security of the IoT-based system, an improved ECC-based algorithm should be developed to enhance the security and privacy issues of the IoT system.

关键词： Information security cryptographic algorithm IoT security Cybersecurity Network security Lightweight algorithm Elliptic curve cryptography

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Měření kvality elektrické energie

Měření kvality elektrické energie

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作者： Šenk, Marek Brno University of Technology

Bakalářská práce na úvod objasňuje pojem kvalita elektrické energie a popisuje jednotlivé charakteristiky napětí, které kvalitu elektrické energie určují. Dále ... 详细信息

Bakalářská práce na úvod objasňuje pojem kvalita elektrické energie a popisuje jednotlivé charakteristiky napětí, které kvalitu elektrické energie určují. Dále se bakalářská práce zabývá nalezením optimální datové komunikace pro energetická data pro telekomunikační sítě, GSM sítě a silnoproudé sítě technologií PLC s ohledem na bezpečnost a spolehlivost přenosu dat. Následně je provedena analýza dat pomocí programu Wireshark. Analyzovaná data byla naměřena měřiče kvality elektrické energie PQ monitor MEg 33. Podle typů analyzovaných dat byly vyhodnoceny možné typy zabezpečení pomocí programu CrypTool 2. Na závěr bakalářské práce je rozebráno měření základních charakteristik kvality elektrické energie a provedeno praktické měření se záznamníkem kvality Fluke VR1710.

关键词： Kvalita elektrické energie datová komunikace zabezpečení šifrovací algoritmus měření kvality Electric power quality data communication security cryptographic algorithm measurement of quality Text

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Combinational Counters: A Low Overhead Approach to Address DPA Attacks

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JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS 2020年第6期29卷

作者： Zarrinchian, Ghobad Zamani, Morteza Saheb Amirkabir Univ Technol Dept Comp Engn & Informat Technol Tehran Iran

Differential Power Analysis (DPA) attacks are known as viable and practical techniques to break the security of cryptographic algorithms. In this type of attack, an adversary extracts the encryption key based on the correlation of consumed power of the hardware running encryption algorithms to the processed data. To address DPA attacks in the hardware layer, various techniques have been proposed thus far. However, current techniques generally impose high performance overhead. Especially, the power overhead is a serious issue which may limit the applicability of current techniques in power-constrained applications. In this paper, combinational counters are explored as a way to address the DPA attacks. By randomizing the consumed power in each clock cycle of the circuit operation, these counters can enhance the resistance of the cryptographic cores against DPA attacks with low power overhead as well as zero timing overhead. Experimental results for an AES S-Box module in 45nm technology reveal that the proposed technique is capable of achieving higher level of security in comparison to two other approaches while preserving the power and performance overhead at a same or lower level.

关键词： Derential power analysis cryptographic algorithm combinational counters

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Multi-core architecture with asynchronous clocks to prevent power analysis attacks

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IEICE ELECTRONICS EXPRESS 2017年第4期14卷 20161220-20161220页

作者： Du, Yuan Ye, Yong Jing, Weiliang Li, Zhenhua Li, Xiaoyun Song, Zhitang Chen, Bomy Chinese Acad Sci Shanghai Inst Micro Syst & Informat Technol State Key Lab Funct Mat Informat Shanghai 200050 Peoples R China Univ Chinese Acad Sci Beijing 100080 Peoples R China Shanghai Xinchu Integrated Circuit Inc Shanghai 200122 Shanghai Peoples R China

This paper proposes a multi-core architecture with asynchronous clocks to prevent power analysis attacks for the first time. The multi cores normally execute different tasks with default clocks, but will execute the cryptographic algorithm together with asynchronous clocks to foil the side channel attacks. The cryptographic algorithm is split into multi parts, each of which is executed simultaneously by one core. Security analysis and simulation results show that the differential power analysis (DPA) attack and correlation power analysis (CPA) attack fail on data encryption standard (DES) and advanced encryption standard (AES) with the proposed architecture.

关键词： cryptographic algorithm power analysis attacks security multi-core

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An Efficient ARIA-RSA-SHA256 Hybridized Encryption algorithm for Metering Data in Smart Grid Network Systems

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INTERNATIONAL JOURNAL OF RENEWABLE ENERGY RESEARCH 2023年第4期13卷 1467-1480页

作者： Philips, Anita Jayakumar, J. Karunya Univ Dept Elect & Elect Coimbatore 641114 India

Digitizing the traditional electrical power grid and transitioning the grid operations to Smart Grid functionalities could yield very efficient results. Despite all the advantages, smart grid networks pose a serious threat of cyber-attacks emerging at the various nodes of the system. The cyber threat models could vary from a minimal effect on the system to even massive power outages disrupting the entire system. One of the vulnerable and crucial nodes of the smart grid where security breaches can occur is the Advanced Metering Infrastructure component of the smart grid. Hence, it becomes essential for efficient security protocols in place, to secure the metering data originating from the consumer premises through smart meters. In this paper, we have explored the cryptographic encryption algorithms, which are most effective in securely transmitting data from smart meters to utility centers and vice versa. In particular, using the approach of combining the strengths of asymmetric and asymmetric public key algorithms to provide hybrid functionalities is very efficient in Internet of Things (IoT) systems. Therefore, in this research work, we propose an enhanced hybrid security protocol with ARIA encryption algorithm and Rivest-Shamir-Adleman (RSA) key encryption algorithm with SHA256 hash digital signature for the secure transmission of metering data in smart grid networks. The results of this hybrid application in smart grids show significant improvement in the defined performance metrics.

关键词： Cyber security Hybrid security Symmetric encryption Asymmetric encryption ARIA encryption algorithm RSA cryptographic algorithm Digital Signature Advanced metering infrastructure Smart grid

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The security analysis of PhpBB forum

The security analysis of PhpBB forum

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International Conference on Cyberspace Technology (CCT 2014)

作者： Lijun Zhang Jia Fan Science and Technology on Communication Security Laboratory ChengDu China

ISBN: (纸本)9781510802704

PhpBB forum is one of the widely applied network forums. In this paper, we investigate the security of this kind of forum. We analyze the whole process of security mechanism related to user's password, including password checking in registration, password storage in database and password identification when users log in. Our research indicates that security of the earlier version is weak, and subsequent 3.0 version provides more secure cryptographic algorithm. However, in order to acquire the compatibility, the forum software retains the weak algorithm which brings the potential security threat. According to this vulnerability, we design the corresponding attack while we also propose the countermeasures.

关键词： cryptographic algorithm phpBB forum security analysis encryption algorithm Passwords Security security mechanism Consumers

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