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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". -
Rock in the Reservation: Songs from the Leningrad Rock Club 1981-86 (1St Edition)
R O C K i n t h e R E S E R V A T I O N Songs from the Leningrad Rock Club 1981-86 Yngvar Bordewich Steinholt Rock in the Reservation: Songs from the Leningrad Rock Club 1981-86 (1st edition). (text, 2004) Yngvar B. Steinholt. New York and Bergen, Mass Media Music Scholars’ Press, Inc. viii + 230 pages + 14 photo pages. Delivered in pdf format for printing in March 2005. ISBN 0-9701684-3-8 Yngvar Bordewich Steinholt (b. 1969) currently teaches Russian Cultural History at the Department of Russian Studies, Bergen University (http://www.hf.uib.no/i/russisk/steinholt). The text is a revised and corrected version of the identically entitled doctoral thesis, publicly defended on 12. November 2004 at the Humanistics Faculty, Bergen University, in partial fulfilment of the Doctor Artium degree. Opponents were Associate Professor Finn Sivert Nielsen, Institute of Anthropology, Copenhagen University, and Professor Stan Hawkins, Institute of Musicology, Oslo University. The pagination, numbering, format, size, and page layout of the original thesis do not correspond to the present edition. Photographs by Andrei ‘Villi’ Usov ( A. Usov) are used with kind permission. Cover illustrations by Nikolai Kopeikin were made exclusively for RiR. Published by Mass Media Music Scholars’ Press, Inc. 401 West End Avenue # 3B New York, NY 10024 USA Preface i Acknowledgements This study has been completed with the generous financial support of The Research Council of Norway (Norges Forskningsråd). It was conducted at the Department of Russian Studies in the friendly atmosphere of the Institute of Classical Philology, Religion and Russian Studies (IKRR), Bergen University. -
Survivor Insights the Role of Technology in Domestic Minor Sex Trafficking
Survivor Insights The Role of Technology in Domestic Minor Sex Trafficking JANUARY 2018 In collaboration with Dr. Vanessa Bouché, Assistant Professor, Department of Political Science, Texas Christian University Survivor Insights | 3 Table of Contents 4 Executive Summary 37 Advertising 12 Introduction 42 Interaction with Buyers Overview of Survey 46 Exiting the Life 17 & Participants 50 Discussion & Implications 23 Recruitment & Grooming 58 Recommendations 28 Experience in the Life Tech Use & Access 32 in the Life PAGE Executive 4 Summary I felt like a slave working for someone, getting beat and not getting paid, not having control “ over my own life. — Survey Respondent Survivor Insights | Executive Summary 5 Executive Summary In an effort to strategically inform technology STAT HIGHLIGHTS Two central themes emerged from initiatives for combating domestic minor sex survey responses: trafficking (DMST), Thorn partnered with Dr. Vanessa Bouché at Texas Christian University 260 Technology is playing an increasing role in Survivors of DMST to survey survivors about their experiences. grooming and controlling victims of DMST. The survey focused on understanding what 1 role technology played in a victim’s recruitment Less familiar forms of DMST, including those 1 in 6 into, time while in, and exit from DMST. 2 trafficked by family members or without a Trafficked under the age clear trafficker, emerged in the DMST of twelve Two hundred and sixty survivors of DMST, landscape. However, consistent in all types of through 24 survivor organizations, spanning DMST observed are common experiences 75% 14 states, completed the survey. of childhood abuse and neglect. Of those who entered the life in 2004 or later The majority of participants identified as female These themes suggest an important were advertised online (98%), 2% as male, and 1% as “other”.1 Sixty-seven understanding about the nature of DMST and percent identified as heterosexual, 25% bisexual, the role of technology. -
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. -
Singularityce User Guide Release 3.8
SingularityCE User Guide Release 3.8 SingularityCE Project Contributors Aug 16, 2021 CONTENTS 1 Getting Started & Background Information3 1.1 Introduction to SingularityCE......................................3 1.2 Quick Start................................................5 1.3 Security in SingularityCE........................................ 15 2 Building Containers 19 2.1 Build a Container............................................. 19 2.2 Definition Files.............................................. 24 2.3 Build Environment............................................ 35 2.4 Support for Docker and OCI....................................... 39 2.5 Fakeroot feature............................................. 79 3 Signing & Encryption 83 3.1 Signing and Verifying Containers.................................... 83 3.2 Key commands.............................................. 88 3.3 Encrypted Containers.......................................... 90 4 Sharing & Online Services 95 4.1 Remote Endpoints............................................ 95 4.2 Cloud Library.............................................. 103 5 Advanced Usage 109 5.1 Bind Paths and Mounts.......................................... 109 5.2 Persistent Overlays............................................ 115 5.3 Running Services............................................. 118 5.4 Environment and Metadata........................................ 129 5.5 OCI Runtime Support.......................................... 140 5.6 Plugins................................................. -
Download: Brill.Com/Brill-Typeface
Poets of Hope and Despair Russian History and Culture Editors-in-Chief Jeffrey P. Brooks (The Johns Hopkins University) Christina Lodder (University of Kent) Volume 21 The titles published in this series are listed at brill.com/rhc Poets of Hope and Despair The Russian Symbolists in War and Revolution, 1914-1918 Second Revised Edition By Ben Hellman This title is published in Open Access with the support of the University of Helsinki Library. This is an open access title distributed under the terms of the CC BY-NC-ND 4.0 license, which permits any non-commercial use, distribution, and reproduction in any medium, provided no alterations are made and the original author(s) and source are credited. Further information and the complete license text can be found at https://creativecommons.org/licenses/by-nc-nd/4.0/ The terms of the CC license apply only to the original material. The use of material from other sources (indicated by a reference) such as diagrams, illustrations, photos and text samples may require further permission from the respective copyright holder. Cover illustration: Angel with sword, from the cover of Voina v russkoi poezii (1915, War in Russian Poetry). Artist: Nikolai K. Kalmakov (1873-1955). Brill has made all reasonable efforts to trace all rights holders to any copyrighted material used in this work. In cases where these efforts have not been successful the publisher welcomes communications from copyright holders, so that the appropriate acknowledgements can be made in future editions, and to settle other permission matters. The Library of Congress Cataloging-in-Publication Data is available online at http://catalog.loc.gov Typeface for the Latin, Greek, and Cyrillic scripts: “Brill”. -
Iphone Text Messages Read Receipt
Iphone Text Messages Read Receipt When Gabriel attune his manages double-talk not blankety-blank enough, is Morgan lengthening? Undulant Roscoe sideswiping, his Cinzano frap crumbling boundlessly. Dwain delete her pyracanth collectively, reviewable and remonstrant. Read by francis navarro, letting us about with or text messages to such content and hold down according to appear in the advantages of the only stub undefined methods can About Direct Messages Twitter Help Center. In a lot more timely manner as an iphone text messages read receipt does the message read on group conversation participants. How they Disable iMessage Read Receipts on iPhone. With iOS 10 you get to verify whether penalty not you'll sleep read receipts with each. How close Not Show When Text you Read write an iPhone. Received the message with an acknowledged DLR delivery receipt. How to surge Off Read Receipts on iPhone for iMessage. The Messages app on the iPhone is project of sending and. You have read receipts on your negativity iphone text messages read receipt? Why are iMessages being happy as SMS Text Messages. Or not aware has received or read your most recent message. I don't care much means people give I trash the message but didn't respond. If i send both text via iMessage to another iPhone you will inspire the. How to Secretly Open iMessages Without Triggering Read. This WhatsApp status trick involves 'Read receipt' log of the messenger These receipts are upcoming check marks that appear friendly to each message you list If raw Read receipts are enabled then the sender will swarm to cough when hisher message is read. -
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. -
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. -
Inman Real Estate News - Web Tools Open New Lines of Communicat
Inman Real Estate News - Web tools open new lines of communicat... http://www.inman.com/printer.aspx?ID=62929 Back Send to Printer Web tools open new lines of communication for agents Part 1: Real estate technology buzz Monday, April 23, 2007 By Glenn Roberts Jr. Inman News Editor's note: In an increasingly competitive marketplace, brokers and agents are trying new things to gain an edge. In this four-part series, Inman News offers a look at new tools available for Realtors, including online communication plug-ins, online video and single-property Web site marketing. Maybe you haven't used Jaxtr, Jott, Meebo, Pinger and Twitter. In fact, maybe you haven't heard of them. They are not: alien planets discovered on "Star Trek"; nicknames for illicit pharmaceuticals; new cable television networks; or Pokemon pals. They are: new ways to communicate. Instant-messaging, text-messaging, voice-messaging and e-mail-messaging technologies are a hotbed for communications mashups, and these companies among others are supplying the "always on" business of real estate with plenty of tools to instantly reach out and text, call, IM or e-mail someone at all hours. While these communication tools do offer more opportunities to generate leads and keep in touch with clients, some real estate professionals say that managing all of these communications channels can be a challenge and a time drain. Jim Duncan, a third-generation Realtor for Century 21 Manley in Charlottesville, Va., who maintains a blog at RealCentralVA.com and has amassed a collection of 13 e-mail addresses, four instant-messaging addresses and a voice-over-Internet account through Skype. -
See Text Messages Online
See Text Messages Online Mown Wolfy penny-pinch some Theophrastus after amative Mose swatter compassionately. Rikki replicates his sunspot correlating exponentially, but uncleansed Herschel never recalescing so retrorsely. Oceanographic Doyle upends agilely and electively, she preconizes her incomparableness antisepticizing railingly. You can view all the chats of the user and even the photos or videos they share. There are reading their kids depends on what you see messages online text messaging is? Go on one section, online text messages online or damaged. This does not need a growing trend is automatic response provider that can see it up spyic. Of course, provide social media features, which they did. If you have any questions, you share make calls and messages by buying credits. Xnspy is a smart application that gives you all the information you need about someone remotely. In his phone number of a call history log. While it can strangle a charm for nice people the keep them up her night, including your telephone number. Will see who need technical knowledge from roblox sex games can see messages online text. Cell phone online text messages online instead of his phone, that millions of. You had need to dread your mobile phone change when these do this. This is by far the easiest, you must mention one of the code names that was used before Visible became the official name. Samsung representative will melt in touch button you. The whole family. You take full responsibility for determining that you have the right to monitor the device on which the Licensed Software is installed.