This Handbook Is a Very Important Practical Tool for Journalists. and It Is of Particular Importance to Investigative Reporters
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MASTERCLASS GNUPG MASTERCLASS You Wouldn’T Want Other People Opening Your Letters and BEN EVERARD Your Data Is No Different
MASTERCLASS GNUPG MASTERCLASS You wouldn’t want other people opening your letters and BEN EVERARD your data is no different. Encrypt it today! SECURE EMAIL WITH GNUPG AND ENIGMAIL Send encrypted emails from your favourite email client. our typical email is about as secure as a The first thing that you need to do is create a key to JOHN LANE postcard, which is good news if you’re a represent your identity in the OpenPGP world. You’d Ygovernment agency. But you wouldn’t use a typically create one key per identity that you have. postcard for most things sent in the post; you’d use a Most people would have one identity, being sealed envelope. Email is no different; you just need themselves as a person. However, some may find an envelope – and it’s called “Encryption”. having separate personal and professional identities Since the early 1990s, the main way to encrypt useful. It’s a personal choice, but starting with a single email has been PGP, which stands for “Pretty Good key will help while you’re learning. Privacy”. It’s a protocol for the secure encryption of Launch Seahorse and click on the large plus-sign email that has since evolved into an open standard icon that’s just below the menu. Select ‘PGP Key’ and called OpenPGP. work your way through the screens that follow to supply your name and email address and then My lovely horse generate the key. The GNU Privacy Guard (GnuPG), is a free, GPL-licensed You can, optionally, use the Advanced Key Options implementation of the OpenPGP standard (there are to add a comment that can help others identify your other implementations, both free and commercial – key and to select the cipher, its strength and set when the PGP name now refers to a commercial product the key should expire. -
Backbox Penetration Testing Never Looked So Lovely
DISTROHOPPER DISTROHOPPER Our pick of the latest releases will whet your appetite for new Linux distributions. Picaros Diego Linux for children. here are a few distributions aimed at children: Doudou springs to mind, Tand there’s also Sugar on a Stick. Both of these are based on the idea that you need to protect children from the complexities of the computer (and protect the computer from the children). Picaros Diego is different. There’s nothing stripped- down or shielded from view. Instead, it’s a normal Linux distro with a brighter, more kid-friendly interface. The desktop wallpaper perhaps best We were too busy playing Secret Mario on Picaros Diego to write a witty or interesting caption. exemplifies this. On one hand, it’s a colourful cartoon image designed to interest young file manager. In the programming category, little young for a system like this, but the it children. Some of the images on the we were slightly disappointed to discover it may well work for children on the upper end landscape are icons for games, and this only had Gambas (a Visual Basic-like of that age range. should encourage children to investigate the language), and not more popular teaching Overall, we like the philosophy of wrapping system rather than just relying on menus. languages like Scratch or a Python IDE. Linux is a child-friendly package, but not On the other hand, it still displays technical However, it’s based on Debian, so you do dumbing it down. Picaros Diego won’t work details such as the CPU usage and the RAM have the full range of software available for every child, but if you have a budding and Swap availability. -
AMNESIA 33: How TCP/IP Stacks Breed Critical Vulnerabilities in Iot
AMNESIA:33 | RESEARCH REPORT How TCP/IP Stacks Breed Critical Vulnerabilities in IoT, OT and IT Devices Published by Forescout Research Labs Written by Daniel dos Santos, Stanislav Dashevskyi, Jos Wetzels and Amine Amri RESEARCH REPORT | AMNESIA:33 Contents 1. Executive summary 4 2. About Project Memoria 5 3. AMNESIA:33 – a security analysis of open source TCP/IP stacks 7 3.1. Why focus on open source TCP/IP stacks? 7 3.2. Which open source stacks, exactly? 7 3.3. 33 new findings 9 4. A comparison with similar studies 14 4.1. Which components are typically flawed? 16 4.2. What are the most common vulnerability types? 17 4.3. Common anti-patterns 22 4.4. What about exploitability? 29 4.5. What is the actual danger? 32 5. Estimating the reach of AMNESIA:33 34 5.1. Where you can see AMNESIA:33 – the modern supply chain 34 5.2. The challenge – identifying and patching affected devices 36 5.3. Facing the challenge – estimating numbers 37 5.3.1. How many vendors 39 5.3.2. What device types 39 5.3.3. How many device units 40 6. An attack scenario 41 6.1. Other possible attack scenarios 44 7. Effective IoT risk mitigation 45 8. Conclusion 46 FORESCOUT RESEARCH LABS RESEARCH REPORT | AMNESIA:33 A note on vulnerability disclosure We would like to thank the CERT Coordination Center, the ICS-CERT, the German Federal Office for Information Security (BSI) and the JPCERT Coordination Center for their help in coordinating the disclosure of the AMNESIA:33 vulnerabilities. -
Analysis of Firmware Security in Embedded ARM Environments
Analysis of Firmware Security in Embedded ARM Environments Dane A. Brown Dissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Computer Engineering T. Charles Clancy, Chair Ryan Gerdes Yaling Yang Jonathan Black Patrick Schaumont August 13, 2019 Arlington, Virginia Keywords: Security, Firmware, Embedded Devices, ARM Copyright 2019, Dane A. Brown Analysis of Firmware Security in Embedded ARM Environments Dane A. Brown (ABSTRACT) Modern enterprise-grade systems with virtually unlimited resources have many options when it comes to implementing state of the art intrusion prevention and detection solutions. These solutions are costly in terms of energy, execution time, circuit board area, and capital. Sus- tainable Internet of Things devices and power-constrained embedded systems are thus forced to make suboptimal security trade-offs. One such trade-off is the design of architectures which prevent execution of injected shell code, yet have allowed Return Oriented Program- ming (ROP) to emerge as a more reliable way to execute malicious code following attacks. ROP is a method used to take over the execution of a program by causing the return address of a function to be modified through an exploit vector, then returning to small segments of otherwise innocuous code located in executable memory one after the other to carry out the attacker’s aims. We show that the Tiva TM4C123GH6PM microcontroller, which utilizes an ARM Cortex-M4F processor, can be fully controlled with this technique. Firmware code is pre-loaded into a ROM on Tiva microcontrollers which can be subverted to erase and rewrite the flash memory where the program resides. -
Securing Email Through Online Social Networks
SECURING EMAIL THROUGH ONLINE SOCIAL NETWORKS Atieh Saberi Pirouz A thesis in The Department of Concordia Institute for Information Systems Engineering (CIISE) Presented in Partial Fulfillment of the Requirements For the Degree of Master of Applied Science (Information Systems Security) at Concordia University Montreal,´ Quebec,´ Canada August 2013 © Atieh Saberi Pirouz, 2013 Concordia University School of Graduate Studies This is to certify that the thesis prepared By: Atieh Saberi Pirouz Entitled: Securing Email Through Online Social Networks and submitted in partial fulfillment of the requirements for the degree of Master of Applied Science (Information Systems Security) complies with the regulations of this University and meets the accepted standards with respect to originality and quality. Signed by the final examining commitee: Dr. Benjamin C. M. Fung Chair Dr. Lingyu Wang Examiner Dr. Zhenhua Zhu Examiner Dr. Mohammad Mannan Supervisor Approved Chair of Department or Graduate Program Director 20 Dr. Christopher Trueman, Dean Faculty of Engineering and Computer Science Abstract Securing Email Through Online Social Networks Atieh Saberi Pirouz Despite being one of the most basic and popular Internet applications, email still largely lacks user-to-user cryptographic protections. From a research perspective, designing privacy preserving techniques for email services is complicated by the re- quirement of balancing security and ease-of-use needs of everyday users. For example, users cannot be expected to manage long-term keys (e.g., PGP key-pair), or under- stand crypto primitives. To enable intuitive email protections for a large number of users, we design Friend- lyMail by leveraging existing pre-authenticated relationships between a sender and receiver on an Online Social Networking (OSN) site, so that users can send secure emails without requiring direct key exchange with the receiver in advance. -
Download Windows Live Messenger for Linux Ubuntu
Download windows live messenger for linux ubuntu But installing applications in Ubuntu that were originally made for I found emescene to be the best Msn Messenger for Ubuntu Linux so far. It really gives you the feel as if you are using Windows Live Messenger. Its builds are available for Archlinux, Debian, Ubuntu, Fedora, Mandriva and Windows. At first I found it quite difficult to use Pidgin Internet Messenger on Ubuntu Linux. Even though it allows signing into MSN, Yahoo! Messenger and Google Talk. While finding MSN Messenger for Linux / Ubuntu, I found different emesene is also available and could be downloaded and installed for. At first I found it quite difficult to use Pidgin Internet Messenger on Ubuntu Linux. Even though it allows signing into MSN, Yahoo! Messenger. A simple & beautiful app for Facebook Messenger. OS X, Windows & Linux By downloading Messenger for Desktop, you acknowledge that it is not an. An alternative MSN Messenger chat client for Linux. It allows Linux users to chat with friends who use MSN Messenger in Windows or Mac OS. The strength of. Windows Live Messenger is an instant messenger application that For more information on installing applications, see InstallingSoftware. sudo apt-get install chromium-browser. 2. After the installation is Windows Live Messenger running in LinuxMint / Ubuntu. You can close the. Linux / X LAN Messenger for Debian/Ubuntu LAN Messenger for Fedora/openSUSE Download LAN Messenger for Windows. Windows installer A MSN Messenger / Live Messenger client for Linux, aiming at integration with the KDE desktop Ubuntu: Ubuntu has KMess in its default repositories. -
Wiretapping End-To-End Encrypted Voip Calls Real-World Attacks on ZRTP
Institute of Operating Systems and Computer Networks Wiretapping End-to-End Encrypted VoIP Calls Real-World Attacks on ZRTP Dominik Schürmann, Fabian Kabus, Gregor Hildermeier, Lars Wolf, 2017-07-18 wiretapping difficulty End-to-End Encryption SIP + DTLS-SRTP (SIP + Datagram Transport Layer Security-SRTP) End-to-End Encryption & Authentication SIP + SRTP + ZRTP Introduction Man-in-the-Middle ZRTP Attacks Conclusion End-to-End Security for Voice Calls Institute of Operating Systems and Computer Networks No End-to-End Security PSTN (Public Switched Telephone Network) SIP + (S)RTP (Session Initiation Protocol + Secure Real-Time Transport Protocol) 2017-07-18 Dominik Schürmann Wiretapping End-to-End Encrypted VoIP Calls Page 2 of 13 wiretapping difficulty End-to-End Encryption & Authentication SIP + SRTP + ZRTP Introduction Man-in-the-Middle ZRTP Attacks Conclusion End-to-End Security for Voice Calls Institute of Operating Systems and Computer Networks No End-to-End Security PSTN (Public Switched Telephone Network) SIP + (S)RTP (Session Initiation Protocol + Secure Real-Time Transport Protocol) End-to-End Encryption SIP + DTLS-SRTP (SIP + Datagram Transport Layer Security-SRTP) 2017-07-18 Dominik Schürmann Wiretapping End-to-End Encrypted VoIP Calls Page 2 of 13 wiretapping difficulty Introduction Man-in-the-Middle ZRTP Attacks Conclusion End-to-End Security for Voice Calls Institute of Operating Systems and Computer Networks No End-to-End Security PSTN (Public Switched Telephone Network) SIP + (S)RTP (Session Initiation Protocol + Secure Real-Time -
Coreboot - the Free firmware
coreboot - the free firmware Linux Club of Peking University April 9th, 2016 . Linux Club of Peking University coreboot - the free firmware April 9th, 2016 1 / 30 1 History 2 Why use coreboot 3 How coreboot works 4 Building and using coreboot 5 Flashing 6 Utilities and Debugging 7 Contribute to coreboot 8 Proprietary Components 9 References . Linux Club of Peking University coreboot - the free firmware April 9th, 2016 2 / 30 History: from LinuxBIOS to coreboot coreboot has a very long history, stretching back more than 15 years to when it was known as LinuxBIOS. While the project has gone through lots of changes over the years, many of the earliest developers still contribute today. Linux Club of Peking University coreboot - the free firmware April 9th, 2016 3 / 30 LinuxBIOS v1: 1999-2000 The coreboot project originally started as LinuxBIOS in 1999 at Los Alamos National Labs (LANL) by Ron Minnich. Ron needed to boot a cluster made up of many x86 mainboards without the hassles that are part of the PC BIOS. The goal was to do minimal hardware initilization in order to boot Linux as fast as possible. Linux already had the drivers and support to initialize the majority of devices. Ron and a number of other key contributors from LANL, Linux NetworkX, and other open source firmware projects successfully booted Linux from flash. From there they were able to discover other nodes in the cluster, load a full kernel and user space, and start the clustering software. Linux Club of Peking University coreboot - the free firmware April 9th, 2016 4 / 30 LinuxBIOS v2: 2000-2005 After the initial success of v1, the design was expanded to support more CPU architectures (x86, Alpha, PPC) and to support developers with increasingly diverse needs. -
How to Use Encryption and Privacy Tools to Evade Corporate Espionage
How to use Encryption and Privacy Tools to Evade Corporate Espionage An ICIT White Paper Institute for Critical Infrastructure Technology August 2015 NOTICE: The recommendations contained in this white paper are not intended as standards for federal agencies or the legislative community, nor as replacements for enterprise-wide security strategies, frameworks and technologies. This white paper is written primarily for individuals (i.e. lawyers, CEOs, investment bankers, etc.) who are high risk targets of corporate espionage attacks. The information contained within this briefing is to be used for legal purposes only. ICIT does not condone the application of these strategies for illegal activity. Before using any of these strategies the reader is advised to consult an encryption professional. ICIT shall not be liable for the outcomes of any of the applications used by the reader that are mentioned in this brief. This document is for information purposes only. It is imperative that the reader hires skilled professionals for their cybersecurity needs. The Institute is available to provide encryption and privacy training to protect your organization’s sensitive data. To learn more about this offering, contact information can be found on page 41 of this brief. Not long ago it was speculated that the leading world economic and political powers were engaged in a cyber arms race; that the world is witnessing a cyber resource buildup of Cold War proportions. The implied threat in that assessment is close, but it misses the mark by at least half. The threat is much greater than you can imagine. We have passed the escalation phase and have engaged directly into full confrontation in the cyberwar. -
Diplomat: Using Delegations to Protect Community Repositories
Diplomat: Using Delegations to Protect Community Repositories Trishank Karthik Kuppusamy, Santiago Torres-Arias, Vladimir Diaz, and Justin Cappos, New York University https://www.usenix.org/conference/nsdi16/technical-sessions/presentation/kuppusamy This paper is included in the Proceedings of the 13th USENIX Symposium on Networked Systems Design and Implementation (NSDI ’16). March 16–18, 2016 • Santa Clara, CA, USA ISBN 978-1-931971-29-4 Open access to the Proceedings of the 13th USENIX Symposium on Networked Systems Design and Implementation (NSDI ’16) is sponsored by USENIX. Diplomat: Using Delegations to Protect Community Repositories Trishank Karthik Kuppusamy Santiago Torres-Arias Vladimir Diaz Justin Cappos Tandon School of Engineering, New York University Abstract software. Major repositories run by Adobe, Apache, Debian, Fedora, FreeBSD, Gentoo, GitHub, GNU Sa- Community repositories, such as Docker Hub, PyPI, vannah, Linux, Microsoft, npm, Opera, PHP, RedHat, and RubyGems, are bustling marketplaces that distribute RubyGems, SourceForge, and WordPress repositories software. Even though these repositories use common have all been compromised at least once [4,5,7,27,28,30, software signing techniques (e.g., GPG and TLS), at- 31,35,36,39–41,48,59,61,62,67,70,79,80,82,86,87,90]. tackers can still publish malicious packages after a server For example, a compromised SourceForge repository compromise. This is mainly because a community repos- mirror located in Korea distributed a malicious ver- itory must have immediate access to signing keys in or- sion of phpMyAdmin, a popular database administration der to certify the large number of new projects that are tool [79]. The modified version allowed attackers to gain registered each day. -
Jitsi User Guide
Jitsi Guide Multi-platform open-source video conferencing Quick guide to Jitsi calls, meetings and office hours by Peter E. Humphries, March 21, 2020 English (GB): Peter Humphries, [email protected] English (US): Peter Humphries, [email protected] Français (FR): Peter Humphries, [email protected] Licensed under a Creative Commons Attribution-ShareAlike 4.0 International Licence (CC BY-SA 4.0). Android Client: 1. Open the Jitsi application on your Android device. 2. Enter a new name for your meeting “room” to start a new meeting. You can enter the name of an existing meeting room to join a meeting already in progress. Figure 2 Jitsi Android client iOS Client: 1. Open the Jitsi application on your iOS device. 2. Enter a new name for your meeting “room” to start a new meeting. You can enter the name of an existing meeting room to join a meeting already in progress. Figure 3 Jitsi iOS client Getting Started You can host or attend Jitsi meetings from your browser or from the Jitsi client application on your mobile device. For more information about Jitsi meetings, go to the https://jitsi.org/ page. Click on START A CALL to open a Jitsi meeting room! Figure 4 Jitsi home page ( https://jitsi.org/ ) Jitsi can handle up to 75 participants in a “meeting room.” Practically, fewer should be active participants. For larger groups, Jitsi offers easy integration with YouTube’s live streaming service. Starting a Meeting Web Portal: 1. Go to https://meet.jit.si/ or click on START A CALL if you are on the Jitsi home page. -
Digital Security for Activists
Training the Motivated: Digital Security for Activists Glencora Borradaile Kelsy Kretschmer Abstract School of Electrical Engineering School of Public Policy The state of global surveillance and the political and Computer Science Sociology Program environment has many activists caring more about their Oregon State University Oregon State University online security culture. We report on the initiation of a Corvallis, OR 97331, USA Corvallis, OR 97331, USA Digital Security for Activists program and a pilot study of an [email protected] [email protected] introductory seminar. Pre- and post-surveys of the seminar will form an initial assessment of what kind of intervention might increase the security practices of activists and to inform the design of program offerings. We report on the pre-surveys from three offerings of the seminar. Introduction In collaboration with the Civil Liberties Defense Center (CLDC), the first author had been offering informal digital security trainings for activists and their lawyers. After the fall elections in the U.S., requests for these trainings increased dramatically and shortly thereafter we launched a Digital Security for Activists (DSA) program. The DSA program’s intent is to align with the CLDC mission (“to defend and uphold civil liberties through education, outreach, litigation, legal support, and assistance”) and enable citizen activists to assert their constitutional rights while organizing online. Copyright is held by the author/owner. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee. Poster In order to provide trainings that are useful and effective, we presented at the 13th Symposium on Usable Privacy and Security (SOUPS 2017).