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Secure Authentication Mechanisms for the Management Interface in Cloud Computing Environments
UNIVERSITY OF BEIRA INTERIOR Engineering Secure Authentication Mechanisms for the Management Interface in Cloud Computing Environments Liliana Filipa Baptista Soares Dissertation Submitted in Partial Fulfillment of the Requirement for the Degree of Master of Science in Computer Science and Engineering (2nd Cycle Studies) Supervised by Prof. Dr. Pedro Ricardo Morais Inácio Covilhã, October 2013 ii To my beloved family, especially to my grandparents. iv Acknowledgements The endurance to overcome obstacles or predisposed objectives in life depends on how each one envisages them. It is up to each one to extract the most valuable lessons from each journey and transform them into knowledge. Without the guidance and support of very particular persons, it would have not been possible to accomplish this dissertation and many lessons would have not been learned. I hereby thank my mother and father, to whom I am mostly grateful, for helping me to achieve my goals, particularly those of my academic quest. I would like to thank my sister, Cátia, for her immeasurable support, and my grandparents, for always demonstrating their love and will to live. I am also grateful to my supervisor, Prof. Dr. Pedro Ricardo Morais Inácio, not only for the help, charisma and readiness he demonstrated to complete this stage, but also for being resourceful in aiding throughout other steps of my professional life. I also acknowledge the Multimedia Signal Processing – Covilhã Group at the Instituto de Telecomunicações, which hosted this dis- sertation work and the final project of my first degree, and the research folk in it, particularly Miguel Neto for lending me a smartcard reader temporarily. -
Biting Into Forbidden Fruit
Biting into the forbidden fruit Lessons from trusting Javascript crypto Krzysztof Kotowicz, OWASP Appsec EU, June 2014 About me • Web security researcher • HTML5 • UI redressing • browser extensions • crypto • I was a Penetration Tester @ Cure53 • Information Security Engineer @ Google Disclaimer: “My opinions are mine. Not Google’s”. Disclaimer: All the vulns are fixed or have been publicly disclosed in the past. Introduction JS crypto history • Javascript Cryptography Considered Harmful http://matasano.com/articles/javascript- cryptography/ • Final post on Javascript crypto http://rdist.root.org/2010/11/29/final-post-on- javascript-crypto/ JS crypto history • Implicit trust in the server to deliver the code • SSL/TLS is needed anyway • Any XSS can circumvent the code • Poor library quality • Poor crypto support • No secure keystore • JS crypto is doomed to fail Doomed to fail? Multiple crypto primitives libraries, symmetric & asymmetric encryption, TLS implementation, a few OpenPGP implementations, and a lot of user applications built upon them. Plus custom crypto protocols. https://crypto.cat/ https://www.mailvelope.com/ http://openpgpjs.org/ JS crypto is a fact • Understand it • Look at the code • Find the vulnerabilities • Analyze them • Understand the limitations and workarounds • Answer the question: can it be safe? JS crypto vulns in the wild • Language issues • Caused by a flaw of the language • Web platform issues • Cased by the web • Other standard bugs • out of scope for this presentation Language issues Language issues matter -
A History of End-To-End Encryption and the Death of PGP
25/05/2020 A history of end-to-end encryption and the death of PGP Hey! I'm David, a security engineer at the Blockchain team of Facebook (https://facebook.com/), previously a security consultant for the Cryptography Services of NCC Group (https://www.nccgroup.com). I'm also the author of the Real World Cryptography book (https://www.manning.com/books/real-world- cryptography?a_aid=Realworldcrypto&a_bid=ad500e09). This is my blog about cryptography and security and other related topics that I Ûnd interesting. A history of end-to-end encryption and If you don't know where to start, you might want to check these popular the death of PGP articles: posted January 2020 - How did length extension attacks made it 1981 - RFC 788 - Simple Mail Transfer Protocol into SHA-2? (/article/417/how-did-length- extension-attacks-made-it-into-sha-2/) (https://tools.ietf.org/html/rfc788) (SMTP) is published, - Speed and Cryptography the standard for email is born. (/article/468/speed-and-cryptography/) - What is the BLS signature scheme? (/article/472/what-is-the-bls-signature- This is were everything starts, we now have an open peer-to-peer scheme/) protocol that everyone on the internet can use to communicate. - Zero'ing memory, compiler optimizations and memset_s (/article/419/zeroing-memory- compiler-optimizations-and-memset_s/) 1991 - The 9 Lives of Bleichenbacher's CAT: New Cache ATtacks on TLS Implementations The US government introduces the 1991 Senate Bill 266, (/article/461/the-9-lives-of-bleichenbachers- which attempts to allow "the Government to obtain the cat-new-cache-attacks-on-tls- plain text contents of voice, data, and other implementations/) - How to Backdoor Di¸e-Hellman: quick communications when appropriately authorized by law" explanation (/article/360/how-to-backdoor- from "providers of electronic communications services di¸e-hellman-quick-explanation/) and manufacturers of electronic communications - Tamarin Prover Introduction (/article/404/tamarin-prover-introduction/) service equipment". -
Wsemail: a Retrospective on a System for Secure Internet Messaging Based on Web Services
WSEmail: A Retrospective on a System for Secure Internet Messaging Based on Web Services Michael J. May Kevin D. Lux Kinneret Academic College University of Pennsylvania, Rowan University [email protected] [email protected] Carl A. Gunter University of Illinois Urbana-Champaign [email protected] Abstract 1 Introduction Web services are a mature technology nearing their Web services offer an opportunity to redesign a va- twentieth birthday. They have created the founda- riety of older systems to exploit the advantages of a tion for highly interoperable distributed systems to flexible, extensible, secure set of standards. In this communicate over the Internet using standardized work we revisit WSEmail, a system proposed over protocols (e.g. SOAP, JSON) and security mech- ten years ago to improve email by redesigning it as anisms (e.g. OAuth (IETF RFC 6749), XMLD- a family of web services. WSEmail offers an alterna- SIG [5]). Legacy systems and protocols must be tive vision of how instant messaging and email ser- reevaluated to see how they can benefit from mod- vices could have evolved, offering security, extensi- ern architectures, standards, and tools. As a case bility, and openness in a distributed environment in- study of such an analysis and redesign, we present stead of the hardened walled gardens that today's an expanded study of WSEmail [20], electronic mail rich messaging systems have become. WSEmail's ar- redesigned as a family of web services we first imple- chitecture, especially its automatic plug-in download mented and presented in 2005. feature allows for rich extensions without changing the base protocol or libraries. -
How Secure Is Textsecure?
How Secure is TextSecure? Tilman Frosch∗y, Christian Mainkay, Christoph Badery, Florian Bergsmay,Jorg¨ Schwenky, Thorsten Holzy ∗G DATA Advanced Analytics GmbH firstname.lastname @gdata.de f g yHorst Gortz¨ Institute for IT-Security Ruhr University Bochum firstname.lastname @rub.de f g Abstract—Instant Messaging has gained popularity by users without providing any kind of authentication. Today, many for both private and business communication as low-cost clients implement only client-to-server encryption via TLS, short message replacement on mobile devices. However, until although security mechanisms like Off the Record (OTR) recently, most mobile messaging apps did not protect confi- communication [3] or SCIMP [4] providing end-to-end con- dentiality or integrity of the messages. fidentiality and integrity are available. Press releases about mass surveillance performed by intelli- With the advent of smartphones, low-cost short-message gence services such as NSA and GCHQ motivated many people alternatives that use the data channel to communicate, to use alternative messaging solutions to preserve the security gained popularity. However, in the context of mobile ap- and privacy of their communication on the Internet. Initially plications, the assumption of classical instant messaging, fueled by Facebook’s acquisition of the hugely popular mobile for instance, that both parties are online at the time the messaging app WHATSAPP, alternatives claiming to provide conversation takes place, is no longer necessarily valid. secure communication experienced a significant increase of new Instead, the mobile context requires solutions that allow for users. asynchronous communication, where a party may be offline A messaging app that claims to provide secure instant for a prolonged time. -
Technical Design of Open Social Web for Crowdsourced Democracy
Project no. 610349 D-CENT Decentralised Citizens ENgagement Technologies Specific Targeted Research Project Collective Awareness Platforms D4.3 Technical Design of Open Social Web for Crowdsourced Democracy Version Number: 1 Lead beneficiary: OKF Due Date: 31 October 2014 Author(s): Pablo Aragón, Francesca Bria, Primavera de Filippi, Harry Halpin, Jaakko Korhonen, David Laniado, Smári McCarthy, Javier Toret Medina, Sander van der Waal Editors and reviewers: Robert Bjarnason, Joonas Pekkanen, Denis Roio, Guido Vilariño Dissemination level: PU Public X PP Restricted to other programme participants (including the Commission Services) RE Restricted to a group specified by the consortium (including the Commission Services) CO Confidential, only for members of the consortium (including the Commission Services) Approved by: Francesca Bria Date: 31 October 2014 This report is currently awaiting approval from the EC and cannot be not considered to be a final version. FP7 – CAPS - 2013 D-CENT D4.3 Technical Design of Open Social Web for Crowdsourced Democracy Contents 1 Executive Summary ........................................................................................................................................................ 6 Description of the D-CENT Open Democracy pilots ............................................................................................. 8 Description of the lean development process .......................................................................................................... 10 Hypotheses statements -
Is Bob Sending Mixed Signals?
Is Bob Sending Mixed Signals? Michael Schliep Ian Kariniemi Nicholas Hopper University of Minnesota University of Minnesota University of Minnesota [email protected] [email protected] [email protected] ABSTRACT Demand for end-to-end secure messaging has been growing rapidly and companies have responded by releasing applications that imple- ment end-to-end secure messaging protocols. Signal and protocols based on Signal dominate the secure messaging applications. In this work we analyze conversational security properties provided by the Signal Android application against a variety of real world ad- versaries. We identify vulnerabilities that allow the Signal server to learn the contents of attachments, undetectably re-order and drop messages, and add and drop participants from group conversations. We then perform proof-of-concept attacks against the application to demonstrate the practicality of these vulnerabilities, and suggest mitigations that can detect our attacks. The main conclusion of our work is that we need to consider more than confidentiality and integrity of messages when designing future protocols. We also stress that protocols must protect against compromised servers and at a minimum implement a trust but verify model. 1 INTRODUCTION (a) Alice’s view of the conversa-(b) Bob’s view of the conversa- Recently many software developers and companies have been inte- tion. tion. grating end-to-end encrypted messaging protocols into their chat applications. Some applications implement a proprietary protocol, Figure 1: Speaker inconsistency in a conversation. such as Apple iMessage [1]; others, such as Cryptocat [7], imple- ment XMPP OMEMO [17]; but most implement the Signal protocol or a protocol based on Signal, including Open Whisper Systems’ caching. -
How to Install MFA Browser Authenicator Extension
How to… Set up Multi-Factor Authentication (MFA) on your Chrome, Edge or Firefox using Extensions Introduction Griffith has introduced MFA to ensure the security of your information by adding an additional layer of authentication to your Single Sign-On. PingID is the MFA tool used by Griffith. This guide shows how to setup MFA using a Chrome, Edge or Firefox Authenticator Extension. Step 1 – Enable profile and syncing for your Chrome, Edge or Firefox browser Refer to links below for information on how to enable profile and syncing for each browser: • Chrome - see Google support page at https://support.google.com/chrome/answer/2364824? • Edge - see Microsoft support page at https://support.microsoft.com/en-us/office/sign-in-and-create-multiple-profiles-in-microsoft-edge-df94e622-2061-49ae-ad1d- 6f0e43ce6435 • Firefox - see Mozilla support page at https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox- profiles Step 2 – Add an Authenticator Extension to your browser Ensure you are in the correct profile when setting up, as this will need to be logged into on each computer you wish to use when accessing Griffith apps. If you are using Chrome or Edge go to the Chrome web store - https://chrome.google.com/webstore/ If you are using Firefox go to Add-ons – https://addons.mozilla.org/en-GB/firefox/search/ Search for Authenticator or 2FA. This example uses an extension called Authenticator for Google Authenticator. Select Add Select Add Extension Your browser will confirm the extension has been added. Step 3 – Set up the Authenticator Extension as the primary authenticating method Once the Authenticator extension is added, click on the extension icon then click on the Pencil icon. -
Online Anonymity Islamic State and Surveillance
online anonymity islamic state and surveillance Jamie Bartlett Alex Krasodomski-Jones March 2015 Open Access. Some rights reserved. As the publisher of this work, Demos wants to encourage the circulation of our work as widely as possible while retaining the copyright. We therefore have an open access policy which enables anyone to access our content online without charge. Anyone can download, save, perform or distribute this work in any format, including translation, without written permission. This is subject to the terms of the Demos licence found at the back of this publication. Its main conditions are: . Demos and the author(s) are credited . This summary and the address www.demos.co.uk are displayed . The text is not altered and is used in full . The work is not resold . A copy of the work or link to its use online is sent to Demos. You are welcome to ask for permission to use this work for purposes other than those covered by the licence. Demos gratefully acknowledges the work of Creative Commons in inspiring our approach to copyright. To find out more go to www.creativecommons.org Partners Credits Commissioned by? Published by Demos March 2015 © Demos. Some rights reserved. Third Floor Magdalen House 136 Tooley Street London SE1 2TU [email protected] www.demos.co.uk 2 INTRODUCTION This is a very short discussion paper about the way in which terrorist groups, and specifically Islamic State, use modern encryption systems to evade surveillance. It examines how the risks of online anonymity are weighed against its many social, personal and economic benefits. -
Download Google Authenticator App Download Google Authenticator App
download google authenticator app Download google authenticator app. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. What can I do to prevent this in the future? If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Another way to prevent getting this page in the future is to use Privacy Pass. You may need to download version 2.0 now from the Chrome Web Store. Cloudflare Ray ID: 67aa6d6ed8c98498 • Your IP : 188.246.226.140 • Performance & security by Cloudflare. Google Authenticator 4+ Google Authenticator works with 2-Step Verification for your Google Account to provide an additional layer of security when signing in. With 2-Step Verification, signing into your account will require both your password and a verification code you can generate with this app. Once configured, you can get verification codes without the need for a network or cellular connection. Features include: - Automatic setup via QR code - Support for multiple accounts - Support for time-based and counter-based code generation - Transfer accounts between devices via QR code. To use Google Authenticator with Google, you need to enable 2-Step Verification on your Google Account. Visit http://www.google.com/2step to get started. What’s New. - Added the ability to transfer many accounts to a different device - Added the ability of search for accounts - Added the ability to turn on Privacy Screen. -
Going Dark: Impact to Intelligence and Law Enforcement and Threat Mitigation
GOING DARK: IMPACT TO INTELLIGENCE AND LAW ENFORCEMENT AND THREAT MITIGATION Bonnie Mitchell Krystle Kaul G. S. McNamara Michelle Tucker Jacqueline Hicks Colin Bliss Rhonda Ober Danell Castro Amber Wells Catalina Reguerin Cindy Green-Ortiz Ken Stavinoha ACKNOWLEDGEMENTS We would like to first thank the Office of the Director of National Intelligence (ODNI) for its generous funding and support for our study and learning journey to the DEFCON hacking conference. We are also very grateful to the Department of Homeland Security (DHS) for its support during the duration of the program. We could not have completed this study without the unwavering support and dedication of Ms. Bonnie Mitchell, ODNI Deputy National Intelligence Manager for the Western Hemisphere and the Homeland, our devoted Team Champion who steered us throughout this study and helped turn an idea into a product. We would like to acknowledge and thank each member of our public-private sector working group for their tireless efforts from around the U.S., which includes Krystle Kaul, G. S. McNamara, Michelle Tucker, Jacqueline Hicks, Colin Bliss, Rhonda Ober, Danell Castro, Amber Wells, Catalina Reguerin, Cindy Green- Ortiz and Ken Stavinoha. We are very thankful for all the unique insight we received from interviewees who contributed to this report by educating our group on the many aspects of ‘going dark,’ and we take full responsibility for any and all errors of fact or interpretation implied or explicit in this paper. Our interviewees include the Village sponsors at DEF CON, private sector industry experts and government officials. We are thankful for the interesting and diverse perspectives particularly from senior government officials and private sector experts. -
The Outer Edge Page 1 the Outer Edge
October 2019 The Outer Edge Page 1 The Outer Edge Next meeting: Saturday, Oct.. 26 (fourth Saturday) October 2019 Vol. 33, No. 2 Whole No. 3732 ISSN 1055-4399 Newsletter of the Channel Islands PC Users Group The Friendly Computer Club Helping Make Computers Friendly COMMAND.COM By Ed Lynch, president Attendance at the Septem- he holiday season is approaching quickly. Michael’s program on “Windows Tips and Tricks,” demonstrated again that there are nu- ber 2019 meeting was 32 merous ways to accomplish the same task in Windows. The photo members and guests. T series renaming should save time identifying all those photos, allow- ing more time with family and friends. Those tips and tricks are very power- ful. I maybe should learn the new ways. I will admit that I am not a strong WINDOWS supporter. I do not have the option to not use it. Windows 10 appears to me to be the most secure yet. That eliminates my first complaint. Windows 10 is supposed to be the last How to contact us operating system. I thought that would eliminate the obsolescence of the soft- ware. I find features in programs that ran in the initial The Outer Edge ……………[email protected] release are now failing. I guess software and hardware General Info (Ventura County will now have to reference Windows build xxxx and Computers)..............805-289-3960 above. The hardware support has immensely improved. Mailing Address: P.O. Box 51354, It is hard to find a device, be it PCIe, eSATA, USB and Oxnard, CA 93031-1354 maNy others that are not supported and function as Email addresses for board members are expected right out of the box without loading drivers.