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Curve25519 based lightweight end-to-end encryption in resource constrained autonomous 8-bit IoT devices

Cybersecurity 2021年第1期4卷 147-159页

作者： Shafi Ullah Raja Zahilah School of Computing Faculty of EngineeringUniversiti Teknologi Malaysia81310 Johor BahruJohorMalaysia

Robust encryption techniques require heavy computational capability and consume large amount of memory which are unaffordable for resource constrained IoT devices and Cyber-Physical Systems with an inclusion of general-purpose data manipulation *** encryption techniques have been introduced to address the inability of such devices,lacking in robust security provision at low *** article presents an encryption technique,implemented on a resource constrained IoT device(AVR ATmega2560)through utilizing fast execution and less memory consumption properties of curve25519 in a novel and efficient lightweight hash *** hash function utilizes GMP library for multi-precision arithmetic calculations and pre-calculated curve points to devise a good cipher block using ECDH based key exchange protocols and large random prime number generator function.

关键词： Cyber-physical systems IoT Resource constrained IoT devices Lightweight encryption end-to-end encryption Elliptic curve cryptography Curve25519

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Research on end-to-end encryption of TETRA

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The Journal of China Universities of Posts and Telecommunications 2006年第2期13卷 70-73页

作者： ZHANG Zhi-hui YANG Yi-xian Beijing FORICH Software Technology Co. Ltd. Network Security Division Beijing 100083 P. R. China Information Security Center Beijing University of Posts and Telecommunications Beijing 100876 P. R. China

The Terrestrial Trunked Radio（TETRA） system uses end-to-end encryption in addition to the air interface encryption to provide enhanced security. The TETRA system uses a synchronization technique known as frame stealing to provide synchronization of end-to-end encrypted data. However, the frame stealing process degrades the quality of video. This paper proposes an end-to-end encryption system with the frame stealing technique for voice and frame insertion for video. A block cipher in the output feedback mode is used to implement the end-to-end key stream generator. Moreover. In the Short Data Service（SDS） message encryption , a block cipher in the Cipher Block Chaining （CBC） mode is used to calculate the cryptographically secure checksum, which is sufficient to certify the integrity.

关键词： TETRA end-to-end encryption confidentiality integrity

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Design of a Cryptographic Algorithm in the Form of an API in Order to Secure Monetary Transactions in a Supermarket

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Journal of Information Security 2023年第4期14卷 437-453页

作者： Atsopmene Tango Vanette Eleonore Gamom Ngounou Ewo Roland Christian Kom Charles Hubert Computer and Automatic Engineering Laboratory Higher Normal School of Technical Education of the University of Douala Douala Cameroun Energy Materials Modeling and Methods Laboratory National Polytechnic School of University of Douala Douala Cameroun

Supermarkets and large-scale retail stores are usually subject to huge monetary transactions for certain customers’ purchases. The computerization of these systems is common in supermarkets but the security of these transactions remains a mystery. This article presents an algorithm as an API based on symmetric cryptography that can enable end-to-end encryption of a monetary transaction in a supermarket. This algorithm is the first part of the complete supermarket management system which will be presented in the following article. The Python language and the Flask framework allow us to develop the algorithm as an independent component. Tests have been performed and our algorithm uses 98.49% less memory and 10.18% time saving than the AES algorithm.

关键词： Application Programming Interface (API) Symmetric Cryptography end-to-end encryption

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