Search results “Cryptographically signed kernel modules makefile”
OpenBSD 5.7 Kernel compile and colors
OpenBSD 5.7 Kernel compile and colors
Views: 679 n/a n/a
Maintaining a Linux Kernel for 13 Years? You Must be Kidding Me. We Need at Least 30?
Maintaining a Linux Kernel for 13 Years? You Must be Kidding Me. We Need at Least 30? - Agustin Benito Bethencourt & Ben Hutchings, Codethink Ltd Industrial grade solutions has a life expectancy of 30+ years. Maintaining a Linux kernel for such a long time in the open has not been done. Many claim that is not sustainable but corporations that build power plants, railway systems, etc. are willing to tackle this challenge. This talk will describe the work done so far on the kernel maintenance and testing front at the CIP initiative. During the talk it will be explained how we decide which parts of the kernel to cover - reducing the amount of work to be done and the risk of being unable to maintain the claimed support. The process of reviewing and backporting fixes that might be needed on an older branch will be briefly described. CIP is taking a different approach from many other projects when it comes to testing the kernel. The talk will go over it as well as the coming steps. and the future steps. About Agustin Benito Bethencourt Bachelor degree in Applied Physics and Master in Training. Agustin Benito Bethencourt has experience as entrepreneur, executive, IT director, product owner and consultant, in the FLOSS space. Currently he is Principal Consultant at Codethink Ltd currently focused in collaborative environments like CIP, AGL or GENIVI. Agustin has extensive experience working in the open in Open Source communities like KDE or openSUSE. Full background available at http://www.toscalix.com About Ben Hutchings Ben Hutchings is a developer at Codethink Ltd. He is a reputed kernel hacker and Debian developer. He currently maintains Linux Kernel 3.16 and 3.2 (Debian kernels) and the CIP kernel, based on 4.4 LTS.
Silicon Valley Linux Users Group - Kernel Walkthrough
Presentation by Warren Turkal The Silicon Valley Linux Users Group hosts weekly sessions to walk through the code for the Linux Kernel, allowing newer users and developers to better understanding the operating system.
Views: 115672 Google
XanMod Linux Kernel being compiled...
Views: 2161 Alexandre Frade
Overview of Android: Hardware and OS Kernel Layers
This video gives an overview of Android's hardware and OS kernel layers.
Views: 331 Douglas Schmidt
Hacker’s guide to Web Assembly - Vigneshwer Dhinakaran [ACCU 2018]
Starting from the basics, this talk will walk you through what WebAssembly is, and then why it’s fast. WebAssembly is a new low-level binary compile format that will do a better job at being a compiler target than JavaScript. It’s being called “the future of the web platform” and did you know that its promising features in terms of speed, reusability and safety has brought major browser vendors working together to make it a reality and the MVP is already available in major browsers. Want to know how WebAssembly work? Why is WebAssembly so fast? How to build web apps using C/C++/Rust? In this talk we’ll look at history, basics, applications and deep dive into the core concepts of WebAssembly with help of live demos and coding.
Views: 471 ACCU Conference
Hand-crafting WebAssembly - Emil Bay - JSConf EU 2018
There has been many talks about what WebAssembly (WASM) is, it’s relation to compilers and how bright our collective future is with WASM in our toolbox. However most talks treat WebAssembly as a semi-opaque box, and mostly as something you can compile higher level languages into. This is a pity! WebAssembly is a fun language to learn, and allows one to write code often less than a magnitude slower than C! In this talk I will show how to write WAT (WebAssembly Text-format), how to reason about algorithms when all you have is one large slab of memory, how to convert high level constructs such as loops into elementary instructions and how to have fun at the same time! We will convert a number of progressively harder algorithms, each revealing a challenging aspect of working with no abstractions. Even if you will not write WASM at work, learning at the lowest level of computer tears away the enchantment that abstractions cause, and reveals the magical machine that is the computer. OMG JSConf EU is coming back in 2019 https://2019.jsconf.eu/
Views: 2593 JSConf
Noyau 3.6 sous ubuntu 12.10
La vidéo présente comment nettoyer les anciens noyaux. dpkg -l | grep linux | cut -f 3 -d " " sudo apt-get remove ancien_noyau --purge lspci
How To Encrypt Files Using Commandline In Linux Or Ubuntu Using gpg Step By Step Tutorial
How To Encrypt Files Using Commandline In Linux Or Ubuntu Using gpg Step By Step Tutorial to encrypt: gpg -c filename todecrypt gpg filename.gpg
Views: 6215 Mayank Agarwal
Verification and Secure Systems
Bugs in security-critical system software already cost society billions of dollars, and the need for secure software is increasing as more devices are connected to the Internet. This session will outline the security needs of network-connected systems and explore how formal verification can help secure them. We’ll present research on bringing high-value security to low-cost devices, particularly those powered by microcontrollers – a class of devices ill-prepared for the security challenges of Internet connectivity. We’ll also discuss advances in verification tools and techniques that lead to real, usable verified software, with an emphasis on critical systems such as distributed and operating systems, cloud infrastructure, networking protocols and cryptography. Finally, we’ll present an overview of the Azure Sphere product as part of Microsoft’s efforts to secure MCU-based devices. See more at https://www.microsoft.com/en-us/research/video/verification-and-secure-systems/
Views: 896 Microsoft Research
Mod-01 Lec-08 Binary instrumentation for architectural studies: PIN
Computer Architecture by Dr. Mainak Chaudhuri,Department of Computer Science and Engineering,IIT Kanpur.For more details on NPTEL visit http://nptel.ac.in
Views: 1742 nptelhrd
DEF CON 21 - Panel - Do It Yourself Cellular IDS
Do-It-Yourself Cellular IDS SHERRI DAVIDOFF LMG SECURITY SCOTT FRETHEIM LMG SECURITY DAVID HARRISON LMG SECURITY RANDI PRICE LMG SECURITY For less than $500, you can build your own cellular intrusion detection system to detect malicious activity through your own local femtocell. Our team will show how we leveraged root access on a femtocell, reverse engineered the activation process, and turned it into a proof-of-concept cellular network intrusion monitoring system. We leveraged commercial Home Node-Bs ("femtocells") to create a 3G cellular network sniffer without needing to reimplement the UMTS or CDMA2000 protocol stacks. Inside a Faraday cage, we connected smartphones to modified femtocells running Linux distributions and redirected traffic to a Snort instance. Then we captured traffic from infected phones and showed how Snort was able to detect and alert upon malicious traffic. We also wrote our own CDMA protocol dissector in order to better analyze CDMA traffic. The goal of this project was to develop a low-cost proof-of-concept method for capturing and analyzing cellular traffic using locally-deployed femtocells, which any security professional can build. Sherri Davidoff (@sherridavidoff) is a principal and Senior Security Consultant at LMG Security. She has over a decade of experience as an information security professional, specializing in penetration testing, forensics, social engineering testing and web application assessments. Sherri is the co-author of "Network Forensics: Tracking Hackers Through Cyberspace" (Prentice Hall, 2012). She is a GIAC-certified forensic examiner (GCFA) and penetration tester (GPEN), and holds her degree in Computer Science and Electrical Engineering from MIT.br Facebook Scott Fretheim is an expert penetration tester and risk assessment consultant. His clients include Fortune 500 companies, financial institutions, insurance companies, health care organizations, and more. He is a GIAC Certified Web Application Penetration Tester (GWAPT) and is trained in smart grid and SCADA security. He is a founding member of the Montana HTCIA, and holds his B.S. in Management of Information Systems. Scott is an instructor at Black Hat. David Harrison specializes in digital and mobile device forensics as well as information security research. He is a principal author of the DEFCON 2012 Network Forensics Contest. David holds a A.S. in Computer Science from FVCC and is pursuing a B.S. in Software Design from Western Governor's University. Randi Price is a security consultant at LMG Security. She specializes in policy and procedure review and development, including ISO 27001 assessments and HIPAA risk analyses. Randi provides security management consulting for large enterprises such as financial and health care organizations. She is a certified digital forensic examiner and holds her GIAC forensic certification (GCFE). Randi holds two BS degrees in Management of Information Systems and Accounting from the University of Montana.
Views: 1614 DEFCONConference
CppCon 2017: Jonathan Henson “Naivety of Creating Cross-Platform, Modern C++ Libraries...”
Naivety of Creating Cross-Platform, Modern C++ Libraries: A Tour Of Our Challenges and Successes http://CppCon.org — Presentation Slides, PDFs, Source Code and other presenter materials are available at: https://github.com/CppCon/CppCon2017 — The AWS SDK for C++ was designed with a few important tenets. Modern C++ (versions 11 and later), Cross-Platform, User Customization with sane defaults, and no dependencies. A year after launching for general availability, we've been thinking about how these tenets have served us well, and the challenges we've encountered when applying them. In this talk, we will discuss the difficulties we encountered in design and implementation, and then we will cover the aspects of our design that have worked out well. The topics we will cover are: Build System choices, the C++ standard library, Dependency choices, Threading models, Memory models, IO-based programming, ABI compatibility, and packaging. — Jonathan Henson: Senior Software Dev. Engineer, Amazon Web Services, Inc Jonathan is a Senior Software Engineer at Amazon Web Services. He leads development on the AWS SDK for C++ and is passionate about writing tooling for modern C++ developers and advancing adoption of the latest C++ standards. — Videos Filmed & Edited by Bash Films: http://www.BashFilms.com
Views: 5208 CppCon
Module 4 - OS Security Issues
Basic Of Unix and Network Administration Operating System Introduction - OS Security Issues
CppCon 2017: Kostya Serebryany “Fuzz or lose...”
Fuzz or lose: why and how to make fuzzing a standard practice for C++ http://CppCon.org — Presentation Slides, PDFs, Source Code and other presenter materials are available at: https://github.com/CppCon/CppCon2017 — Fuzzing is a family of testing techniques in which test inputs are generated semi-randomly. The memory unsafety of C++ has made fuzzing a popular tool among security researchers. Fuzzing also helps with stability, performance, and equivalence testing; and it’s a great addition to everyone’s CI. Our team has launched OSS-Fuzz, the Google's continuous fuzzing service for open source software, and a similar service for our internal C++ developers. Over 1000 C++ APIs are being fuzzed automatically 24/7, and thousands of bugs have been found and fixed. Now we want to share this experience with the wider C++ community and make fuzzing a part of everyone’s toolbox, alongside unit tests. We will demonstrate how you can fuzz your C++ library with minimal effort, discuss fuzzing of highly structured inputs, and speculate on potential fuzzing-related improvements to C++. — Kostya Serebryany: Google, Software Engineer Websiteresearch.google.com/pubs/KonstantinSerebryany.html Konstantin (Kostya) Serebryany is a Software Engineer at Google. His team develops and deploys dynamic testing tools, such as AddressSanitizer and ThreadSanitizer. Prior to joining Google in 2007, Konstantin spent 4 years at Elbrus/MCST working for Sun compiler lab and then 3 years at Intel Compiler Lab. Konstantin holds a PhD from mesi.ru and a Master from msu.ru. — Videos Filmed & Edited by Bash Films: http://www.BashFilms.com
Views: 3949 CppCon
CHFI Hacking course   Log Capturing and Event Correlation log analysis Lab
CHFI Hacking course Log Capturing and Event Correlation log analysis Lab
Views: 32 Maniak TV
Stochastic Optimization for x86 Binaries
Google Tech Talks January 12, 2015 (more info below) ABSTRACT The optimization of short sequences of loop-free fixed-point x86_64 code sequences is an important problem in high-performance computing. Unfortunately, the competing constraints of transformation correctness and performance improvement often force even special purpose compilers to produce sub-optimal code. We show that by encoding these constraints as terms in a cost function, and using a Markov Chain Monte Carlo sampler to rapidly explore the space of all possible programs, we are able to generate aggressively optimized versions of a given target program. Beginning from binaries compiled by gcc -O0, we are able to produce provably correct code sequences that either match or outperform the code produced by gcc -O3, and in some cases expert hand-written assembly. Because most high-performance applications contain floating-point computations, we extend our technique to this domain and show a novel approach to trading full floating-point precision for further increases in performance. We demonstrate the ability to generate reduced precision implementations of Intel's handwritten C numerics library that are up to six times faster than the original code, and achieve end-to-end speedups of over 30% on a direct numeric simulation and a ray tracer. Because optimizations that contain floating-point computations are not amenable to formal verification using the state of the art, we present a technique for characterizing maximum error and providing strong evidence for correctness. Publication list: http://cs.stanford.edu/people/eschkufz/ Github: https://github.com/eschkufz/stoke-release About the speaker Eric Schkufza is a postdoctoral scholar at Stanford University working with professor Alex Aiken. He graduated from Stanford University with a PhD in computer science in June 2014. He is interested in applying stochastic search techniques to the design of optimizing compilers.
Views: 12664 GoogleTechTalks
Mod-01 Lec-03 Linux Basics-III
Linux Programming & Scripting by Anand Iyer,Director, Calypto Design Systems.For more details on NPTEL visit http://nptel.ac.in
Views: 9570 nptelhrd
System Security
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 7100 nptelhrd
OpenCL on Altera SoC FPGA (Linux Host) – Part 1 – Tools download and setup
Learn how to download, install and configure the tools required to develop OpenCL kernels and host code targeting Altera SoC FPGAs. Follow Intel FPGA to see how we’re programmed for success and can help you tackle your FPGA problems with comprehensive solutions. Facebook: https://www.facebook.com/IntelFPGA Twitter: https://twitter.com/intelfpga LinkedIn: https://www.linkedin.com/company/intelfpga
Views: 8799 Intel FPGA
Kernel (computing)
In computing, the kernel is a computer program that manages input/output requests from software and translates them into data processing instructions for the central processing unit and other electronic components of a computer. The kernel is a fundamental part of a modern computer's operating system. This video targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 4471 encyclopediacc
Module 1 - Operating System Introduction
Basic Of Unix and Network Administration Operating System Introduction - Definition, Roles and types
Server in c++, first test
First run my new serwer in c++ Make directory, write logs and listen to port.
Views: 95 Qfrom Continuum
Google Tech Talks October, 12 2007 ABSTRACT When you have hundreds of people simultaneously patching 25000 files of the Linux Kernel in sometimes conflicting ways, you might need some scheme or plan to sort all that out before you can build your next kernel and reboot. The Linux team uses "git" for their source code repository management, a homegrown solution that is optimized for highly distributed development, working with huge sets of files, merging independent work at multiple levels, and seeing who broke what. (Git has also since been notably adopted by the Cairo, x.org, and Wine teams, and is being transitioned to by the Mozilla codebase.) In my talk, I describe what "git"; is and isn't, and why you should use it instead of CVS, Subversion, SVK, Arch, Darcs, Mercurial, Monotone, Bazaar, and just about every other repository manager. I'll also walk though the basic concepts so that the manpages might start making sense. If I have time, I'll even do a live walkthrough, where you can watch how fast I make typos. Speaker: Randal Schwartz
Views: 198079 GoogleTechTalks
Hide Yo' Kids: Hacking Your Family's Connected Things - Duo Tech Talk
This presentation will cover security research on Internet-connected devices targeting usage by, or for, children. Mark will discuss the vulnerabilities he found during this research, including account takeovers, device hijacking, backdoor credentials, unauthorized file downloading, and dangerously out-of-date protocols & software. Devices discussed will include Internet-connected baby monitors, a GPS-enabled platform to track children, and even a Wi-Fi & Bluetooth-connected stuffed animal. Details about mobile reverse engineering, hardware hacking, network traffic analysis, and other research techniques will be presented to help others learn about methods to perform their own research. Mark Stanislav is a Senior Security Consultant on the Global Services team at Rapid7. Mark has spoken internationally at over 100 events including RSA, DEF CON, SOURCE Boston, Codegate, SecTor, and THOTCON. Mark’s security research and initiatives have been featured by news outlets such as the Wall Street Journal, The Associated Press, CNET, Good Morning America, and Forbes. Mark is the co-founder of the Internet of Things security research initiative, BuildItSecure.ly. He is also the author of a book titled, "Two-Factor Authentication".
Views: 766 Duo Security
Citizenfour Q A Session @debconf
About DebConf DebConf is the annual Debian developers meeting, an event filled with discussions, workshops and coding parties – all of them highly technical in nature. DebConf15, the 16th Debian Conference, will be held from the 15th to the 22nd of August 2015 at Heidelberg International youth hostel in Heidelberg, Germany.
Views: 447 Jalal Al-Haj
Livestream Day 3: Stage 3 (Google I/O '18)
This livestream covers all of the Google I/O 2018 day 3 sessions that take place on Stage 3. Stay tuned for technical sessions and deep dives into Google's latest developer products and platforms. Event schedule (all times are PDT) → https://goo.gl/x5ENpG 1:22:49 - Autonomous and customized pre-launch testing in the Google Play Console 2:22:59 - Build reactive mobile apps with Flutter 3:22:03 - Effective ProGuard keep rules for smaller applications 5:22:03 - Device provisioning and authentication with Android Things 6:22:13 - Product design: how to build better products with Android 7:22:08 - Update production devices in the field with the Android Google I/O 2018 All Sessions playlist → https://goo.gl/q1Tr8x Subscribe to the Google Developers channel → http://goo.gl/mQyv5L Music by Terra Monk → https://goo.gl/wPgbHP
Views: 4334 Google Developers
OSS Speaker Series presents Jeremy Allison
The Future of Samba
Views: 1691 Google
PNW PLSE Workshop: Project Everest: Theory meets Reality
The PNW PLSE workshop provides an opportunity for programming languages and software engineering researchers throughout the Pacific Northwest to meet, interact, and share work in progress as well as recent results. The meeting on May 14, 2018 at the Microsoft Research campus in Redmond, WA, will feature talks and demonstrations of current projects, provide opportunities to get feedback on exciting new projects, and generally foster connections that strengthen our vibrant research community in the region. For more info please visit http://pnwplse.org/ Talk Title: Project Everest: Theory meets Reality Speaker: Jonathan Protzenko See more at https://www.microsoft.com/en-us/research/video/pnw-plse-workshop-project-everest-theory-meets-reality/
Views: 690 Microsoft Research
A rootkit is a stealthy type of software, typically malicious, designed to hide the existence of certain processes or programs from normal methods of detection and enable continued privileged access to a computer. The term rootkit is a concatenation of "root" (the traditional name of the privileged account on Unix operating systems) and the word "kit" (which refers to the software components that implement the tool). The term "rootkit" has negative connotations through its association with malware. Rootkit installation can be automated, or an attacker can install it once they've obtained root or Administrator access. Obtaining this access is a result of direct attack on a system (i.e., exploiting a known vulnerability (such as privilege escalation) or a password (obtained by cracking or social engineering)). Once installed, it becomes possible to hide the intrusion as well as to maintain privileged access. The key is the root or Administrator access. Full control over a system means that existing software can be modified, including software that might otherwise be used to detect or circumvent it. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 382 Audiopedia
ARM architecture
ARM is a family of instruction set architectures for computer processors based on a reduced instruction set computing (RISC) architecture developed by British company ARM Holdings. A RISC-based computer design approach means ARM processors require significantly fewer transistors than typical CISC x86 processors in most personal computers. This approach reduces costs, heat and power use. These are desirable traits for light, portable, battery-powered devices—​including smartphones, laptops, tablet and notepad computers, and other embedded systems. A simpler design facilitates more efficient multi-core CPUs and higher core counts at lower cost, providing improved energy efficiency for servers. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 6162 Audiopedia

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