Software Implementation and Performance Comparison of Popular Block Ciphers on 8-Bit Low-Cost Microcontroller
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Improved Related-Key Attacks on DESX and DESX+
Improved Related-key Attacks on DESX and DESX+ Raphael C.-W. Phan1 and Adi Shamir3 1 Laboratoire de s´ecurit´eet de cryptographie (LASEC), Ecole Polytechnique F´ed´erale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland [email protected] 2 Faculty of Mathematics & Computer Science, The Weizmann Institute of Science, Rehovot 76100, Israel [email protected] Abstract. In this paper, we present improved related-key attacks on the original DESX, and DESX+, a variant of the DESX with its pre- and post-whitening XOR operations replaced with addition modulo 264. Compared to previous results, our attack on DESX has reduced text complexity, while our best attack on DESX+ eliminates the memory requirements at the same processing complexity. Keywords: DESX, DESX+, related-key attack, fault attack. 1 Introduction Due to the DES’ small key length of 56 bits, variants of the DES under multiple encryption have been considered, including double-DES under one or two 56-bit key(s), and triple-DES under two or three 56-bit keys. Another popular variant based on the DES is the DESX [15], where the basic keylength of single DES is extended to 120 bits by wrapping this DES with two outer pre- and post-whitening keys of 64 bits each. Also, the endorsement of single DES had been officially withdrawn by NIST in the summer of 2004 [19], due to its insecurity against exhaustive search. Future use of single DES is recommended only as a component of the triple-DES. This makes it more important to study the security of variants of single DES which increase the key length to avoid this attack. -
Fault-Resilient Lightweight Cryptographic Block Ciphers for Secure Embedded Systems
Rochester Institute of Technology RIT Scholar Works Theses 11-2014 Fault-Resilient Lightweight Cryptographic Block Ciphers for Secure Embedded Systems Kai Tian Follow this and additional works at: https://scholarworks.rit.edu/theses Recommended Citation Tian, Kai, "Fault-Resilient Lightweight Cryptographic Block Ciphers for Secure Embedded Systems" (2014). Thesis. Rochester Institute of Technology. Accessed from This Thesis is brought to you for free and open access by RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact [email protected]. Fault-Resilient Lightweight Cryptographic Block Ciphers for Secure Embedded Systems by Kai Tian A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science in Electrical Engineering Supervised by Dr. Mehran Mozaffari-Kermani Department of Electrical and Microelectronic Engineering Kate Gleason College of Engineering Rochester Institute of Technology Rochester, NY November 2014 Approved By: Dr. Mehran Mozaffari-Kermani Assistant Professor – R.I.T. Dept. of Electrical and Microelectronic Engineering Dr. Dorin Patru Associate Professor – R.I.T. Dept. of Electrical and Microelectronic Engineering Dr. Reza Azarderakhsh Assistant Professor – R.I.T. Dept. of Computer Engineering Dr. Sohail A. Dianat Department Head - Professor –Dept. of Electrical and Microelectronic Engineering Acknowledgements I am grateful to my advisor, Dr. Mehran Mozaffari-Kermani, whose support and guidance helped me to understand the concepts clearly and complete my Masters. Special thanks also go to other professors, who helped me in my field of study, Dr. Dorin Patru, Dr. Reza Azarderakhsh and Dr. Marcin Lukowiak, for their constructive comments and participation. -
Encryption Algorithm Trade Survey
CCSDS Historical Document This document’s Historical status indicates that it is no longer current. It has either been replaced by a newer issue or withdrawn because it was deemed obsolete. Current CCSDS publications are maintained at the following location: http://public.ccsds.org/publications/ CCSDS HISTORICAL DOCUMENT Report Concerning Space Data System Standards ENCRYPTION ALGORITHM TRADE SURVEY INFORMATIONAL REPORT CCSDS 350.2-G-1 GREEN BOOK March 2008 CCSDS HISTORICAL DOCUMENT Report Concerning Space Data System Standards ENCRYPTION ALGORITHM TRADE SURVEY INFORMATIONAL REPORT CCSDS 350.2-G-1 GREEN BOOK March 2008 CCSDS HISTORICAL DOCUMENT CCSDS REPORT CONCERNING ENCRYPTION ALGORITHM TRADE SURVEY AUTHORITY Issue: Informational Report, Issue 1 Date: March 2008 Location: Washington, DC, USA This document has been approved for publication by the Management Council of the Consultative Committee for Space Data Systems (CCSDS) and reflects the consensus of technical panel experts from CCSDS Member Agencies. The procedure for review and authorization of CCSDS Reports is detailed in the Procedures Manual for the Consultative Committee for Space Data Systems. This document is published and maintained by: CCSDS Secretariat Space Communications and Navigation Office, 7L70 Space Operations Mission Directorate NASA Headquarters Washington, DC 20546-0001, USA CCSDS 350.2-G-1 i March 2008 CCSDS HISTORICAL DOCUMENT CCSDS REPORT CONCERNING ENCRYPTION ALGORITHM TRADE SURVEY FOREWORD Through the process of normal evolution, it is expected that expansion, deletion, or modification of this document may occur. This Recommended Standard is therefore subject to CCSDS document management and change control procedures, which are defined in the Procedures Manual for the Consultative Committee for Space Data Systems. -
Multiple New Formulas for Cipher Performance Computing
International Journal of Network Security, Vol.20, No.4, PP.788-800, July 2018 (DOI: 10.6633/IJNS.201807 20(4).21) 788 Multiple New Formulas for Cipher Performance Computing Youssef Harmouch1, Rachid Elkouch1, Hussain Ben-azza2 (Corresponding author: Youssef Harmouch) Department of Mathematics, Computing and Networks, National Institute of Posts and Telecommunications1 10100, Allal El Fassi Avenue, Rabat, Morocco (Email:[email protected] ) Department of Industrial and Production Engineering, Moulay Ismail University2 National High School of Arts and Trades, Mekns, Morocco (Received Apr. 03, 2017; revised and accepted July 17, 2017) Abstract are not necessarily commensurate properties. For exam- ple, an online newspaper will be primarily interested in Cryptography is a science that focuses on changing the the integrity of their information while a financial stock readable information to unrecognizable and useless data exchange network may define their security as real-time to any unauthorized person. This solution presents the availability and information privacy [14, 23]. This means main core of network security, therefore the risk analysis that, the many facets of the attribute must all be iden- for using a cipher turn out to be an obligation. Until now, tified and adequately addressed. Furthermore, the secu- the only platform for providing each cipher resistance is rity attributes are terms of qualities, thus measuring such the cryptanalysis study. This cryptanalysis can make it quality terms need a unique identification for their inter- hard to compare ciphers because each one is vulnerable to pretations meaning [20, 24]. Besides, the attributes can a different kind of attack that is often very different from be interdependent. -
Performance and Energy Efficiency of Block Ciphers in Personal Digital Assistants
Performance and Energy Efficiency of Block Ciphers in Personal Digital Assistants Creighton T. R. Hager, Scott F. Midkiff, Jung-Min Park, Thomas L. Martin Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Blacksburg, Virginia 24061 USA {chager, midkiff, jungmin, tlmartin} @ vt.edu Abstract algorithms may consume more energy and drain the PDA battery faster than using less secure algorithms. Due to Encryption algorithms can be used to help secure the processing requirements and the limited computing wireless communications, but securing data also power in many PDAs, using strong cryptographic consumes resources. The goal of this research is to algorithms may also significantly increase the delay provide users or system developers of personal digital between data transmissions. Thus, users and, perhaps assistants and applications with the associated time and more importantly, software and system designers need to energy costs of using specific encryption algorithms. be aware of the benefits and costs of using various Four block ciphers (RC2, Blowfish, XTEA, and AES) were encryption algorithms. considered. The experiments included encryption and This research answers questions regarding energy decryption tasks with different cipher and file size consumption and execution time for various encryption combinations. The resource impact of the block ciphers algorithms executing on a PDA platform with the goal of were evaluated using the latency, throughput, energy- helping software and system developers design more latency product, and throughput/energy ratio metrics. effective applications and systems and of allowing end We found that RC2 encrypts faster and uses less users to better utilize the capabilities of PDA devices. -
Optimization of Core Components of Block Ciphers Baptiste Lambin
Optimization of core components of block ciphers Baptiste Lambin To cite this version: Baptiste Lambin. Optimization of core components of block ciphers. Cryptography and Security [cs.CR]. Université Rennes 1, 2019. English. NNT : 2019REN1S036. tel-02380098 HAL Id: tel-02380098 https://tel.archives-ouvertes.fr/tel-02380098 Submitted on 26 Nov 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THÈSE DE DOCTORAT DE L’UNIVERSITE DE RENNES 1 COMUE UNIVERSITE BRETAGNE LOIRE Ecole Doctorale N°601 Mathématique et Sciences et Technologies de l’Information et de la Communication Spécialité : Informatique Par Baptiste LAMBIN Optimization of Core Components of Block Ciphers Thèse présentée et soutenue à RENNES, le 22/10/2019 Unité de recherche : IRISA Rapporteurs avant soutenance : Marine Minier, Professeur, LORIA, Université de Lorraine Jacques Patarin, Professeur, PRiSM, Université de Versailles Composition du jury : Examinateurs : Marine Minier, Professeur, LORIA, Université de Lorraine Jacques Patarin, Professeur, PRiSM, Université de Versailles Jean-Louis Lanet, INRIA Rennes Virginie Lallemand, Chargée de Recherche, LORIA, CNRS Jérémy Jean, ANSSI Dir. de thèse : Pierre-Alain Fouque, IRISA, Université de Rennes 1 Co-dir. de thèse : Patrick Derbez, IRISA, Université de Rennes 1 Remerciements Je tiens à remercier en premier lieu mes directeurs de thèse, Pierre-Alain et Patrick. -
A Lightweight Encryption Algorithm for Secure Internet of Things
Pre-Print Version, Original article is available at (IJACSA) International Journal of Advanced Computer Science and Applications, Vol. 8, No. 1, 2017 SIT: A Lightweight Encryption Algorithm for Secure Internet of Things Muhammad Usman∗, Irfan Ahmedy, M. Imran Aslamy, Shujaat Khan∗ and Usman Ali Shahy ∗Faculty of Engineering Science and Technology (FEST), Iqra University, Defence View, Karachi-75500, Pakistan. Email: fmusman, [email protected] yDepartment of Electronic Engineering, NED University of Engineering and Technology, University Road, Karachi 75270, Pakistan. Email: firfans, [email protected], [email protected] Abstract—The Internet of Things (IoT) being a promising and apply analytics to share the most valuable data with the technology of the future is expected to connect billions of devices. applications. The IoT is taking the conventional internet, sensor The increased number of communication is expected to generate network and mobile network to another level as every thing mountains of data and the security of data can be a threat. The will be connected to the internet. A matter of concern that must devices in the architecture are essentially smaller in size and be kept under consideration is to ensure the issues related to low powered. Conventional encryption algorithms are generally confidentiality, data integrity and authenticity that will emerge computationally expensive due to their complexity and requires many rounds to encrypt, essentially wasting the constrained on account of security and privacy [4]. energy of the gadgets. Less complex algorithm, however, may compromise the desired integrity. In this paper we propose a A. Applications of IoT: lightweight encryption algorithm named as Secure IoT (SIT). -
TS 135 202 V7.0.0 (2007-06) Technical Specification
ETSI TS 135 202 V7.0.0 (2007-06) Technical Specification Universal Mobile Telecommunications System (UMTS); Specification of the 3GPP confidentiality and integrity algorithms; Document 2: Kasumi specification (3GPP TS 35.202 version 7.0.0 Release 7) 3GPP TS 35.202 version 7.0.0 Release 7 1 ETSI TS 135 202 V7.0.0 (2007-06) Reference RTS/TSGS-0335202v700 Keywords SECURITY, UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. -
Identifying Open Research Problems in Cryptography by Surveying Cryptographic Functions and Operations 1
International Journal of Grid and Distributed Computing Vol. 10, No. 11 (2017), pp.79-98 http://dx.doi.org/10.14257/ijgdc.2017.10.11.08 Identifying Open Research Problems in Cryptography by Surveying Cryptographic Functions and Operations 1 Rahul Saha1, G. Geetha2, Gulshan Kumar3 and Hye-Jim Kim4 1,3School of Computer Science and Engineering, Lovely Professional University, Punjab, India 2Division of Research and Development, Lovely Professional University, Punjab, India 4Business Administration Research Institute, Sungshin W. University, 2 Bomun-ro 34da gil, Seongbuk-gu, Seoul, Republic of Korea Abstract Cryptography has always been a core component of security domain. Different security services such as confidentiality, integrity, availability, authentication, non-repudiation and access control, are provided by a number of cryptographic algorithms including block ciphers, stream ciphers and hash functions. Though the algorithms are public and cryptographic strength depends on the usage of the keys, the ciphertext analysis using different functions and operations used in the algorithms can lead to the path of revealing a key completely or partially. It is hard to find any survey till date which identifies different operations and functions used in cryptography. In this paper, we have categorized our survey of cryptographic functions and operations in the algorithms in three categories: block ciphers, stream ciphers and cryptanalysis attacks which are executable in different parts of the algorithms. This survey will help the budding researchers in the society of crypto for identifying different operations and functions in cryptographic algorithms. Keywords: cryptography; block; stream; cipher; plaintext; ciphertext; functions; research problems 1. Introduction Cryptography [1] in the previous time was analogous to encryption where the main task was to convert the readable message to an unreadable format. -
Meet-In-The-Middle Attacks on Reduced-Round XTEA*
Meet-in-the-Middle Attacks on Reduced-Round XTEA⋆ Gautham Sekar⋆⋆, Nicky Mouha⋆ ⋆ ⋆, Vesselin Velichkov†, and Bart Preneel 1 Department of Electrical Engineering ESAT/SCD-COSIC, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, B-3001 Heverlee, Belgium. 2 Interdisciplinary Institute for BroadBand Technology (IBBT), Belgium. {Gautham.Sekar,Nicky.Mouha,Vesselin.Velichkov, Bart.Preneel}@esat.kuleuven.be Abstract. The block cipher XTEA, designed by Needham and Wheeler, was published as a technical report in 1997. The cipher was a result of fixing some weaknesses in the cipher TEA (also designed by Wheeler and Needham), which was used in Microsoft’s Xbox gaming console. XTEA is a 64-round Feistel cipher with a block size of 64 bits and a key size of 128 bits. In this paper, we present meet-in-the-middle attacks on twelve vari- ants of the XTEA block cipher, where each variant consists of 23 rounds. Two of these require only 18 known plaintexts and a computational ef- fort equivalent to testing about 2117 keys, with a success probability of 1−2 −1025. Under the standard (single-key) setting, there is no attack re- ported on 23 or more rounds of XTEA, that requires less time and fewer data than the above. This paper also discusses a variant of the classical meet-in-the-middle approach. All attacks in this paper are applicable to XETA as well, a block cipher that has not undergone public analysis yet. TEA, XTEA and XETA are implemented in the Linux kernel. Keywords: Cryptanalysis, block cipher, meet-in-the-middle attack, Feis- tel network, XTEA, XETA. -
Zero Correlation Linear Cryptanalysis with Reduced Data Complexity
Zero Correlation Linear Cryptanalysis with Reduced Data Complexity Andrey Bogdanov1⋆ and Meiqin Wang1,2⋆ 1 KU Leuven, ESAT/COSIC and IBBT, Belgium 2 Shandong University, Key Laboratory of Cryptologic Technology and Information Security, Ministry of Education, Shandong University, Jinan 250100,China Abstract. Zero correlation linear cryptanalysis is a novel key recovery technique for block ciphers proposed in [5]. It is based on linear approx- imations with probability of exactly 1/2 (which corresponds to the zero correlation). Some block ciphers turn out to have multiple linear approx- imations with correlation zero for each key over a considerable number of rounds. Zero correlation linear cryptanalysis is the counterpart of im- possible differential cryptanalysis in the domain of linear cryptanalysis, though having many technical distinctions and sometimes resulting in stronger attacks. In this paper, we propose a statistical technique to significantly reduce the data complexity using the high number of zero correlation linear approximations available. We also identify zero correlation linear ap- proximations for 14 and 15 rounds of TEA and XTEA. Those result in key-recovery attacks for 21-round TEA and 25-round XTEA, while re- quiring less data than the full code book. In the single secret key setting, these are structural attacks breaking the highest number of rounds for both ciphers. The findings of this paper demonstrate that the prohibitive data com- plexity requirements are not inherent in the zero correlation linear crypt- analysis and can be overcome. Moreover, our results suggest that zero correlation linear cryptanalysis can actually break more rounds than the best known impossible differential cryptanalysis does for relevant block ciphers. -
Impossible Differential Cryptanalysis of the Lightweight Block Ciphers TEA, XTEA and HIGHT
Impossible Differential Cryptanalysis of the Lightweight Block Ciphers TEA, XTEA and HIGHT Jiazhe Chen1;2;3?, Meiqin Wang1;2;3??, and Bart Preneel2;3 1 Key Laboratory of Cryptologic Technology and Information Security, Ministry of Education, School of Mathematics, Shandong University, Jinan 250100, China 2 Department of Electrical Engineering ESAT/SCD-COSIC, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, B-3001 Heverlee, Belgium 3 Interdisciplinary Institute for BroadBand Technology (IBBT), Belgium [email protected] Abstract. TEA, XTEA and HIGHT are lightweight block ciphers with 64-bit block sizes and 128-bit keys. The round functions of the three ci- phers are based on the simple operations XOR, modular addition and shift/rotation. TEA and XTEA are Feistel ciphers with 64 rounds de- signed by Needham and Wheeler, where XTEA is a successor of TEA, which was proposed by the same authors as an enhanced version of TEA. HIGHT, which is designed by Hong et al., is a generalized Feistel cipher with 32 rounds. These block ciphers are simple and easy to implement but their diffusion is slow, which allows us to find some impossible prop- erties. This paper proposes a method to identify the impossible differentials for TEA and XTEA by using the weak diffusion, where the impossible differential comes from a bit contradiction. Our method finds a 14-round impossible differential of XTEA and a 13-round impossible differential of TEA, which result in impossible differential attacks on 23-round XTEA and 17-round TEA, respectively. These attacks significantly improve the previous impossible differential attacks on 14-round XTEA and 11-round TEA given by Moon et al.