Ethical Hacking and Countermeasures Exam 312-50 Certified Ethical Hacker Course Outline
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Implementation and Didactical Visualization of the Chacha Cipher Family in Cryptool 2
Implementation and Didactical Visualization of the ChaCha Cipher Family in CrypTool 2 Bachelor’s Thesis Ramdip Gill Supervisor Priv.-Doz. Dr. Wolfgang Merkle Second Supervisor Prof. Dr. Frederik Armknecht Heidelberg, December 11, 2020 Faculty of Mathematics and Computer Science Heidelberg University ABSTRACT This thesis is about the implementation of the ChaCha plug-in in CrypTool 2. The thesis introduces the ChaCha cipher family, explains what the plug-in is capa- ble of, and gives insight into the development process of the plug-in. ChaCha is used in the Transport Layer Security protocol (TLS) since 2014 and so very relevant for applied modern cryptography. Because of the importance of ChaCha its internal design should be made more accessible to the broader public. This is the actual goal of the plug-in. The goal is achieved by focusing on an in-depth but easy to understand visualiza- tion of the encryption process. CrypTool 2 is the most popular e-learning platform in the field of cryptology, used in schools, universities, and companies. Incorporat- ing this plug-in into CrypTool 2 helps to reach a broad audience. iii ZUSAMMENFASSUNG Diese Bachelorarbeit befasst sich mit der Implementierung des ChaCha Plugins für CrypTool 2. Die Arbeit stellt die Familie der ChaCha-Chiffren vor; erklärt, wozu das Plugin in der Lage ist; und gibt Einblick in den Entwicklungsprozess des Plugins. ChaCha wird seit 2014 im Transport Layer Security-Protokoll (TLS) verwendet und ist daher für die angewandte moderne Kryptographie sehr relevant. Aufgrund der Bedeutung von ChaCha sollte sein internes Design der breiten Öffentlichkeit zu- gänglicher gemacht werden. -
Cryptology with Jcryptool V1.0
www.cryptool.org Cryptology with JCrypTool (JCT) A Practical Introduction to Cryptography and Cryptanalysis Prof Bernhard Esslinger and the CrypTool team Nov 24th, 2020 JCrypTool 1.0 Cryptology with JCrypTool Agenda Introduction to the e-learning software JCrypTool 2 Applications within JCT – a selection 22 How to participate 87 JCrypTool 1.0 Page 2 / 92 Introduction to the software JCrypTool (JCT) Overview JCrypTool – A cryptographic e-learning platform Page 4 What is cryptology? Page 5 The Default Perspective of JCT Page 6 Typical usage of JCT in the Default Perspective Page 7 The Algorithm Perspective of JCT Page 9 The Crypto Explorer Page 10 Algorithms in the Crypto Explorer view Page 11 The Analysis tools Page 13 Visuals & Games Page 14 General operation instructions Page 15 User settings Page 20 Command line parameters Page 21 JCrypTool 1.0 Page 3 / 92 JCrypTool – A cryptographic e-learning platform The project Overview . JCrypTool – abbreviated as JCT – is a free e-learning software for classical and modern cryptology. JCT is platform independent, i.e. it is executable on Windows, MacOS and Linux. It has a modern pure-plugin architecture. JCT is developed within the open-source project CrypTool (www.cryptool.org). The CrypTool project aims to explain and visualize cryptography and cryptanalysis in an easy and understandable way while still being correct from a scientific point of view. The target audience of JCT are mainly: ‐ Pupils and students ‐ Teachers and lecturers/professors ‐ Employees in awareness campaigns ‐ People interested in cryptology. As JCT is open-source software, everyone is capable of implementing his own plugins. -
Visualization of the Avalanche Effect in CT2
University of Mannheim Faculty for Business Informatics & Business Mathematics Theoretical Computer Science and IT Security Group Bachelor's Thesis Visualization of the Avalanche Effect in CT2 as part of the degree program Bachelor of Science Wirtschaftsinformatik submitted by Camilo Echeverri [email protected] on October 31, 2016 (2nd revised public version, Apr 18, 2017) Supervisors: Prof. Dr. Frederik Armknecht Prof. Bernhard Esslinger Visualization of the Avalanche Effect in CT2 Abstract Cryptographic algorithms must fulfill certain properties concerning their security. This thesis aims at providing insights into the importance of the avalanche effect property by introducing a new plugin for the cryptography and cryptanalysis platform CrypTool 2. The thesis addresses some of the desired properties, discusses the implementation of the plugin for modern and classic ciphers, guides the reader on how to use it, applies the proposed tool in order to test the avalanche effect of different cryptographic ciphers and hash functions, and interprets the results obtained. 2 Contents Abstract .......................................... 2 Contents .......................................... 3 List of Abbreviations .................................. 5 List of Figures ...................................... 6 List of Tables ....................................... 7 1 Introduction ..................................... 8 1.1 CrypTool 2 . 8 1.2 Outline of the Thesis . 9 2 Properties of Secure Block Ciphers ....................... 10 2.1 Avalanche Effect . 10 2.2 Completeness . 10 3 Related Work ..................................... 11 4 Plugin Design and Implementation ....................... 12 4.1 General Description of the Plugin . 12 4.2 Prepared Methods . 14 4.2.1 AES and DES . 14 4.3 Unprepared Methods . 20 4.3.1 Classic Ciphers, Modern Ciphers, and Hash Functions . 20 4.4 Architecture of the Code . 22 4.5 Limitations and Future Work . -
CEH: Certified Ethical Hacker Course Content
CEH: Certified Ethical Hacker Course ID #: 1275-100-ZZ-W Hours: 35 Course Content Course Description: The Certified Ethical Hacker (CEH) program is the core of the most desired information security training system any information security professional will ever want to be in. The CEH, is the first part of a 3 part EC-Council Information Security Track which helps you master hacking technologies. You will become a hacker, but an ethical one! As the security mindset in any organization must not be limited to the silos of a certain vendor, technologies or pieces of equipment. This course was designed to provide you with the tools and techniques used by hackers and information security professionals alike to break into an organization. As we put it, “To beat a hacker, you need to think like a hacker”. This course will immerse you into the Hacker Mindset so that you will be able to defend against future attacks. It puts you in the driver’s seat of a hands-on environment with a systematic ethical hacking process. Here, you will be exposed to an entirely different way of achieving optimal information security posture in their organization; by hacking it! You will scan, test, hack and secure your own systems. You will be thought the Five Phases of Ethical Hacking and thought how you can approach your target and succeed at breaking in every time! The ve phases include Reconnaissance, Gaining Access, Enumeration, Maintaining Access, and covering your tracks. The tools and techniques in each of these five phases are provided in detail in an encyclopedic approach to help you identify when an attack has been used against your own targets. -
Akademik Bilişim Konferansları Kurs Öneri Formu, V2.1 (Formun Sonundaki Notlar Bölümünü Lütfen Okuyunuz) B
Akademik Bilişim Konferansları www.ab.org.tr Kurs Öneri Formu, v2.1 (Formun Sonundaki Notlar Bölümünü Lütfen Okuyunuz) Bölüm 1: Öneri Sahibi Eğitmene Ait Bilgiler 1. Adı, Soyadı Pınar Çomak Varsa, diğer eğitmenlerin ad ve soyadları 2. Ünvanı/Görevi Araştırma Görevlisi 3. Kurum/Kuruluş Orta Doğu Teknik Üniversitesi 4. E-posta [email protected] 5. Telefonları, iş ve/veya cep 0312 210 2987 6. Varsa, web sayfası URL 7. Eğitmenin Kısa Biyografisi Lisans eğitimini 2009 yılında ODTÜ Matematik bölümünde, yüksek lisans eğitimini 2012 yılında ODTÜ Uygulamalı Matematik Enstütüsü Kriptografi programında tamamladı. 2012 yılından bu yana Kriptografi programında doktora eğitimini sürdürmekte. 2011 yılından bu yana ODTÜ Matematik Bölümde araştırma görevilisi olarak çalışmakta. Çalışma alanı açık anahtarlı kriptografik sistemler ve kriptografik fonksiyonlardır. 8. Eğitmenin Banka Hesap Numarası (tercihan IBAN olarak) 9. Tarih 11.11.2016 Bölüm 1: Öneri Sahibi Eğitmene Ait Bilgiler 10. Adı, Soyadı Halil Kemal Taşkın Varsa, diğer eğitmenlerin ad ve soyadları 11. Ünvanı/Görevi 12. Kurum/Kuruluş Orta Doğu Teknik Üniversitesi 13. E-posta [email protected] 14. Telefonları, iş ve/veya cep 05057941029 15. Varsa, web sayfası URL 16. Eğitmenin Kısa Biyografisi 2011 yılında ODTÜ UME Kriptografi Yüksek Lisans programından mezun oldu. Halen aynı bölümde doktora eğitimine devam etmektedir. 2013 yılından beri Bilgi Güvenliği Uzmanı olarak Oran Teknoloji bünyesinde çalışmalarını sürdürmektedir. Çalışma alanları arasında eliptik eğri kriptografi, kriptografik protocol tasarımı bulunmaktadır. 17. Eğitmenin Banka Hesap Numarası (tercihan IBAN: TR690006400000142291106513 IBAN olarak) 18. Tarih 11.11.2016 Bölüm 1: Öneri Sahibi Eğitmene Ait Bilgiler 19. Adı, Soyadı Oğuz Yayla AB-Kurs-Vermek-Icin-Talep-Formu-2015-11-18-v2.1.docx Sayfa 1/ 2 Varsa, diğer eğitmenlerin ad ve soyadları 20. -
Cryptool 2 in Teaching Cryptography
Journal of Computations & Modelling, vol.4, no.1, 2014, 349-358 ISSN: 1792-7625 (print), 1792-8850 (online) Scienpress Ltd, 2014 Cryptool 2 in Teaching Cryptography Major Konstantinos Loussios1 Abstract. Considering the value it had in the past, has continued to the present and will continue to have, perhaps to an even greater extent in the future concealing information during transmission or transport, leads automatically to attempt to discover the importance and the value of the means, methods and techniques used to implement the concealment. Cryptography is a branch of computer science attracts the attention with its great utility that has nowadays. Given therefore deemed necessary to standardize, analyze and present the encryption algorithms to learning and training on the operation with as efficiently and easily as possible. Having in mind that the theory must be accompanied by practice and examples that help to consolidate the syllabi material, we felt that the analytical presentation of an educational tool on learning algorithms of cryptography is a way of learning while embedding. The learning tool cryptool 2 is an implementation of all the above, and through this we will try to show, those essential functions, which help the user with visual and practical way, to see in detail all the properties and functional details of the algorithms contained, will present representative examples of functioning algorithms, we proceed to create digital signatures and will implement the cryptanalysis algorithms. The above is an object of study and teaching in the professional area of land, in the field of communications and transmissions-service systems. Knowing, however, that historically since the antiquity, first we Greeks, we use encryption in a simple form, for military purposes, but later down through the years and fighting wars around the world, the art encryption and decryption evolved and became object of all armies and weapons. -
Jailbreak D'ios
Jailbreak d'iOS Débridage d'iOS Un outil similaire à Blackra1n, Limera1n, est par la suite développé et publié lors de la sortie de la version 4.1 Pour les articles homonymes, voir Jailbreak. d'iOS, malgré un problème présent dans la première ver- sion de cet outil. Le jailbreak d'iOS, également appelé débridage Des outils comme redsn0w, Pwnage Tool et Sn0wbreeze d'iOS, déverrouillage ou déplombage est un proces- ainsi que GreenPois0n, Absinthe (pour l'iPhone 4S et sus permettant aux appareils tournant sous le système l'iPad 2) permettent de jailbreaker les versions plus ré- d'exploitation mobile d'Apple iOS (tels que l'iPad, centes du terminal. l'iPhone, l'iPod touch, et plus récemment, l'Apple TV) d'obtenir un accès complet pour déverrouiller toutes les Depuis le 6 janvier 2013, il est possible de jailbreaker fonctionnalités du système d'exploitation, éliminant ain- les terminaux sous l'iOS 6, et ce jusqu'à la version 6.1.2, si les restrictions posées par Apple. Une fois iOS débri- par le biais d'un outil connu sous le nom d'Evasi0n. Cette dé, ses utilisateurs sont en mesure de télécharger d'autres méthode s’applique pour tous les terminaux supportant applications, des extensions ainsi que des thèmes qui ne IOS 6 mise à part l'Apple TV. Les versions 6.1.2 jus- sont pas proposés sur la boutique d'application officielle qu’à 6.1.6 ont été libéré en janvier 2014 grâce au logiciel d'Apple, l'App Store, via des installeurs comme Cydia. -
Network Security (NS) Subject Code: 3640004
GUJARAT TECHNOLOGICAL UNIVERSITY Master in Computer Applications Year IV – (Semester-VI) (W.E.F. Dec 2016) Subject Name: Network Security (NS) Subject Code: 3640004 1. Learning Objectives: After completion of this course student will be able to: Understand OSI security architecture, threats, vulnerabilities and various types of attacks. Understand and apply the various symmetric key algorithms. Understand and apply the various asymmetric key algorithms. Understand the concepts of hashing with algorithms and apply them. Understand and use the message authentication and its requirement. Understand the concepts of digital signature and digital certificates. Analyze the use of Authentication applications, Web, IP and Email security. Evaluate the need of Intrusion Detection and Firewalls. 2. Prerequisites: Fundamentals of Networking, Mathematical Concepts: Number theory, finite fields and Random number. 3. Contents: Unit Chapter Details Weightage No. of No. Lecture 1 Introduction 05% 2 Computer Security Concepts, The OSI Security Architecture, Security Attacks, Security Services, Security Mechanisms, A Model for Network Security. 2 Cryptography: Symmetric Encryption, Message 25% 10 Confidentiality, Public-Key Cryptography and Message Authentication Symmetric Encryption Principles, Symmetric Block Encryption Algorithms, Random and Pseudorandom Numbers, Stream Ciphers and RC4,Cipher Block Modes of Operation. Approaches to Message Authentication, Secure Hash Functions, Message Authentication Codes, Public-Key Cryptography Principles, Public-Key Cryptography Algorithms, Digital Signatures. 3. Key Distribution and User Authentication, Transport- 25% 10 Level Security, HTTPS and SSH Symmetric Key Distribution Using Symmetric Encryption, Kerberos, Key Distribution Using Asymmetric Encryption, X.509 Certificates,Public-Key Infrastructure. Web Security Considerations, Secure Socket Layer and Transport Layer Security, Transport Layer Security, HTTPS, Secure Shell (SSH) . -
Multicast Routing Over Computer Networks: Secure Performance Designs
Digital Forensics in the Cloud: Encrypted Data Evidence Tracking ZHUANG TIAN, BSc (Hons) a thesis submitted to the graduate faculty of design and creative technologies Auckland University of Technology in partial fulfilment of the requirements for the degree of Master of Forensic Information Technology School of Computer and Mathematical Sciences Auckland, New Zealand 2014 ii Declaration I hereby declare that this submission is my own work and that, to the best of my knowledge and belief, it contains no material previously published or written by another person nor material which to a substantial extent has been accepted for the qualification of any other degree or diploma of a University or other institution of higher learning, except where due acknowledgement is made in the acknowledgements. ........................... Zhuang Tian iii Acknowledgements This thesis was completed at the Faculty of Design and Creative Technologies in the school of Computing and Mathematical Sciences at Auckland University of Technology, New Zealand. While conducting the research project I received support from many people in one way or another, without whose support, this thesis would not have been completed in its present form. It is my pleasure to take this opportunity to thank all of you, without the intention or possibility to be complete. I would like to apologize to those who I did not mention by name here; however, I highly value your kind support. Firstly, I would like to deeply thank my thesis supervisor Prof. Brian Cusack for the exceptional support given during the thesis project. He provided me with the freedom to explore research directions and to choose the routes that I wanted to investigate. -
Enhancing the Security of AES Algorithm Using Quantum Three-Pass Protocol
International Journal of Security and Its Application Vol.11, No.1 (2017), pp.219-232 http://dx.doi.org/10.14257/ijsia.2017.11.1.18 Enhancing the Security of AES Algorithm using Quantum Three-Pass Protocol Rajeev Kumar Gupta*, R. K. Pateriya and Ankita Patil MANIT Bhopal, 462003, India [email protected], [email protected], [email protected] Abstract In this paper, a hybrid cryptosystem is presented combining classical cryptography with quantum cryptography, in which the secure key distribution between the parties utilizing AES cipher is performed using quantum three-pass protocol. This protocol guarantees the absolutely secure key transmission whose security relies on the no-cloning theorem of quantum mechanics. The key is transmitted in the form of polarized photons, which is further encrypted by rotating each photon by a certain angle. This key is utilized by AES (Advance encryption Standard) cryptosystem which is a symmetric block cipher whose strength relies on the substitution box (S-box) that introduces non linearity into the cryptosystem. The S-box used in the existing AES is fixed which may pose security threats if scrutinized by an attacker. Hence, in this paper, a key-dependent S-box is also proposed which is tested to satisfy the properties such as avalanche effect, strict avalanche criteria and confusion property. The results show that the proposed algorithm is effective for generating a key-dependent S-box and since the S-box is not pre-calculated, it can strengthen the AES cryptosystem against attacks launched by the fixed S-box analysis. Keywords: AES, Avalanche effect, Quantum key distribution, Quantum three-pass protocol, S-box. -
Lecture 15: Encryption and Anonymity
1 CS-340 Introduction to Computer Networking Lecture 15: Encryption and Anonymity Steve Tarzia Last Lecture: Ethernet Link Layer 2 • Link layer handles error detection and correction: Parity, Checksum, and Cyclic Redandancy Check (CRC). • Ethernet adds MAC addresses to identify src/dst on a shared link. • ARP uses Ethernet broadcast to find IP address → MAC address mapping • DHCP requests are sent by Ethernet broadcast (to FF:FF:FF:FF:FF:FF) • Old Ethernet hubs broadcasted data to all ports. • Ethernet switches learn/remember which MAC addresses are reachable on each port and relay traffic only to the appropriate ports. • Reduce broadcast traffic and eliminate collisions. • VLANs create multiple isolated LANs/subnets on one switch. • Data Centers & Supercomputers demand fast local networks. Network Security Overview 3 STOP Why is the STOP How would you and and define "network THINK Internet difficult THINK Goals security?" Challenges to secure? • Confidentiality: • Internet messages travel through Keep message private/secret. untrusted, 3rd-party links and routers. • Routers must see all bits of the packet to • Reliability: copy it to the next hop. Deliver message to the intended recipient. Don't drop it! • Local networks use shared media. • Nearby Ethernet or WiFi hosts can often • Integrity: see your packets. Deliver message without alteration. • DNS may be poisoned, sending you to the • Authentication: wrong IP address. Verify the identity of the endpoint I’m communicating with. • Individual attackers, corporations, and governments all wish to violate your • Anonymity: network security. Conceal relationship between two Internet hosts. Conceal who I am talking to. • IP packets must be addressed to reach destination. -
Blackhatonomics.Pdf
Blackhatonomics This page is intentionally left blank Blackhatonomics An Inside Look at the Economics of Cybercrime Will Gragido Daniel Molina John Pirc Nick Selby Andrew Hay, Technical Editor AMSTERDAM • BOSTON • HEIDELBERG • LONDON NEW YORK • OXFORD • PARIS • SAN DIEGO SAN FRANCISCO • SINGAPORE • SYDNEY • TOKYO Syngress is an Imprint of Elsevier Acquiring Editor: Steve Elliot Development Editor: Heather Scherer Project Manager: Malathi Samayan Designer: Mark Rogers Syngress is an imprint of Elsevier 225 Wyman Street, Waltham, MA 02451, USA Copyright © 2013 Elsevier, Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Details on how to seek permission, further information about the Pub- lisher’s permissions policies and our arrangements with organizations such as the Copyright Clearance Center and the Copyright Licensing Agency, can be found at our website: www.elsevier.com/permissions This book and the individual contributions contained in it are protected under copy- right by the Publisher (other than as may be noted herein). Notices Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods or professional practices, may become necessary. Practitioners and researchers must always rely on their own experience and knowledge in evaluating and using any information or methods described herein. In using such information or methods they should be mindful of their own safety and the safety of others, including parties for whom they have a profes- sional responsibility.