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Faster File Matching Using Gpgpus
Faster File Matching Using GPGPUs Deephan Mohan and John Cavazos Department of Computer and Information Sciences, University of Delaware Abstract We address the problem of file matching by modifying the MD6 algorithm that is best suited to take advantage of GPU computing. MD6 is a cryptographic hash function that is tree-based and highly parallelizable. When the message M is available initially, the hashing operations can be initiated at different starting points within the message and their results can be aggregated as the final step. In the parallel implementation, the MD6 program was partitioned and effectively parallelized across the GPU using CUDA. To demonstrate the performance of the CUDA version of MD6, we performed various experiments with inputs of different MD6 buffer sizes and varying file sizes. CUDA MD6 achieves real time speedup of more than 250X over the sequential version when executed on larger files. CUDA MD6 is a fast and effective solution for identifying similar files. Keywords: CUDA, MD6, GPU computing, File matching 1. Introduction compression level with the root being the final hash computed by the algorithm. The structure of a Merkle tree is shown in File matching is an important task in the field of forensics and Figure 1. In the MD6 implementation, the MD6 buffer size information security. Every file matching application is driven determines the number of levels in the tree and the bounds for by employing a particular hash generating algorithm. The crux parallelism. of the file matching application relies on the robustness and integrity of the hash generating algorithm. Various checksum generation algorithms like MD5[1], SHA-1[2], SHA-256[3], Tiger[4], Whirlpool[5], rolling hash have been utilized for file matching [6, 7]. -
Variational Text Linguistics: Revisiting Register in English
Christoph Schubert and Christina Sanchez-Stockhammer (Eds.) Variational Text Linguistics Topics in English Linguistics Editors Elizabeth Closs Traugott Bernd Kortmann Volume 90 Variational Text Linguistics Revisiting Register in English Edited by Christoph Schubert Christina Sanchez-Stockhammer ISBN 978-3-11-044310-3 e-ISBN (PDF) 978-3-11-044355-4 e-ISBN (EPUB) 978-3-11-043533-7 ISSN 1434-3452 Library of Congress Cataloging-in-Publication Data A CIP catalog record for this book has been applied for at the Library of Congress. Bibliographic information published by the Deutsche Nationalbibliothek The Deutsche Nationalbibliothek lists this publication in the Deutsche Nationalbibliografie; detailed bibliographic data are available on the Internet at http://dnb.dnb.de. © 2016 Walter de Gruyter GmbH, Berlin/Boston Cover image: Brian Stablyk/Photographer’s Choice RF/Getty Images Typesetting: fidus Publikations-Service GmbH, Nördlingen Printing and binding: CPI books GmbH, Leck ♾ Printed on acid-free paper Printed in Germany www.degruyter.com Acknowledgements The foundations for this edited collection of articles were laid at the interna- tional conference Register revisited: New perspectives on functional text variety in English, which took place at the University of Vechta, Germany, from June 27 to 29, 2013. The aim of the present volume is to conserve the research papers and many inspiring discussions which were stimulated then and to make them available to a larger audience. It was only possible to achieve this aim thanks to the help of many people joining us in the effort. First and foremost, we would like to thank all contributors for their continued cooperation in this project. -
PDF-Dokumenten Zusammenzusetzen Im Test Raspi 3A+
Haiku: BeOS-Klon bekommt RasPi 3 Modell A+: Neuer easyLINUX COMMUNITY-EDITIONJetzt mit zusätzlichen Seiten ! rund umneues den Paketmanagement Linux-Einstieg S. 82 Mini-PC im Überblick S. 86 Frei kopieren und beliebig weiter verteilen ! 02.2019 02.2019 Digitale Notizen, Gliederungseditoren, Zusammenarbeit im LAN und unterwegs WISSEN TEILEN WISSEN TEILEN WISSEN Mini-Server: Vorträge um ein Diskussionsforum ergänzen S. 28 Joplin: Evernote-Ersatz ohne Zwang zur Cloud S. 32 Pydio Cells: Dateien teilen und gemeinsam bearbeiten S. 24 Cherrytree und Piggydb: Daten ordnen und miteinander vernetzen S. 16 Steam Play: Der neue Valve-Client im Test Dank Vulkan-API und Proton verspricht das Unternehmen mehr Spiele für Linux – unser Report deckt das Potenzial und die Probleme des neuen Ansatzes auf S. 74 Hilfe aus der Ferne Netzwerk-Konfiguration Einsteigertaugliche Remote-Software Mit nur einem Tool Geräte einrichten, öffnet SSH-Zugang zum eigenen PC S.38 Routen setzen und Traffic steuern S. 80 Top-Distris auf zwei Heft-DVDs MANJARO 18 • APT-CLONE • PLASMA 5.14 • GIMP 2.10 • RASPI 3A+ • • 3A+ RASPI • 2.10 GIMP • 5.14 PLASMA • APT-CLONE • 18 MANJARO EUR 8,50 EUR 9,35 sfr 17,00 EUR 10,85 EUR 11,05 EUR 11,05 02 www.linux-user.de Deutschland Österreich Schweiz Benelux Spanien Italien 4 196067 008502 02 Editorial Lindows? Sehr geehrte Leserinnen und Leser, wer sich gelegentlich auch in englisch- sprachigen Medien über Linux und quell- offene Software informiert, der kennt unvermeidlich das Kürzel sjvn: Steven J. Vaughan-Nichols liefert seit Jahrzehnten technische Hintergrund informationen und spitzzüngige Meinungsstücke über Jörg Luther das Open-Source- Umfeld. -
Biology 3596B – Genomics and Beyond – Winter 2021
Department of Biology BIOLOGY 3596B – GENOMICS AND BEYOND – WINTER 2021 Welcome to Bio 3596! My goal is to help you learn and be successful! Please, read and keep this course outline handy, because it is an official document that contains important course information. 1. General Course Information ...................................................................................................................................... 2 1.1. Course Information ............................................................................................................................ 2 Course description .............................................................................................................................................................. 2 List of Prerequisites ............................................................................................................................................................ 2 Mode of delivery ................................................................................................................................................................ 2 Technical requirements: ..................................................................................................................................................... 2 1.2. Online Participation and Engagement: contribution to community learning ....................................... 3 1.3. Key Sessional Dates ........................................................................................................................... -
2017 W5.2 Fixity Integrity
FIXITY & DATA INTEGRITY DATA INTEGRITY DATA INTEGRITY PRESERVATION CONSIDERATIONS ▸ Data that can be rendered ▸ Data that is properly formed and can be validated ▸ DROID, JHOVE, etc. DATA DEGRADATION HOW DO FILES LOSE INTEGRITY? DATA DEGRADATION HOW DO FILES LOSE INTEGRITY? Storage: hardware issues ▸ Physical damage, improper orientation, magnets, dust particles, mold, disasters Storage: software issues ▸ "bit rot", "flipped" bits, small electronic charge, solar flares, radiation DATA DEGRADATION HOW DO FILES LOSE INTEGRITY? Transfer/Retrieval ‣ Transfer from one operating system or file system to another, transfer across network protocols, ▸ Metadata loss: example – Linux has no "Creation Date" (usually "file system" metadata) Mismanagement ▸ Permissions issues (read/write allowed), human error DATA PROTECTION VERIFICATION DATA PROTECTION VERIFICATION ▸ Material proof or evidence that data is unchanged ▸ Material proof or evidence that data is well-formed and should be renderable ▸ Example: Different vendors write code for standard formats in different ways DATA PROTECTION VERIFICATION Verify that data is well-formed using... DATA PROTECTION VERIFICATION Verify that data is well-formed using... ▸ JHOVE ▸ DROID ▸ XML Validator ▸ DVAnalyzer ▸ NARA File Analyzer ▸ BWF MetaEdit WHOLE-FILE CONSISTENCY FIXITY FIXITY BASIC METHODS Manual checks of file metadata such as... FIXITY BASIC METHODS Manual checks of file metadata such as... ▸ File name ▸ File size ▸ Creation date ▸ Modified date ▸ Duration (time-based media) FIXITY ADVANCED METHODS FIXITY -
Security 1 Lab
Security 1 Lab Installing Command-Line Hash Generators and Comparing Hashes In this project, you download different command-line hash generators to compare hash values. 1. Use your Web browser to go to https://kevincurran.org/com320/labs/md5deep.zip 2. Download this zip archive. 3. Using Windows Explorer, navigate to the location of the downloaded file. Right-click the file and then click Extract All to extract the files. 4. Create a Microsoft Word document with the line below: Now is the time for all good men to come to the aid of their country. 5. Save the document as Country1.docx in the directory containing files and then close the document. 6. Start a command prompt by clicking Start, entering cmd, and then pressing Enter. 7. Navigate to the location of the downloaded files. 8. Enter MD5DEEP64 Country1.docx to start the application that creates an MD5 hash of Country1.docx and then press Enter. What is the length of this hash? (note: If you are not working on a 64 bit machine, then simply run the MD5deep.exe 32 bit version). 9. Now enter MD5DEEP64 MD5DEEP.TXT to start the application that creates an MD5 hash of the accompanying documentation file MD5DEEP.TXT and then press Enter. What is the length of this hash? Compare it to the hash of Country1.docx. What does this tell you about the strength of the MD5 hash? 10. Start Microsoft Word and then open Country1.docx. 11. Remove the period at the end of the sentence so it says Now is the time for all good men to come to the aid of their country and then save the document as Country2.docx in the directory that contains the files. -
Security Analysis for MQTT in Internet of Things
DEGREE PROJECT IN COMPUTER SCIENCE AND ENGINEERING, SECOND CYCLE, 30 CREDITS STOCKHOLM, SWEDEN 2018 Security analysis for MQTT in Internet of Things DIEGO SALAS UGALDE KTH ROYAL INSTITUTE OF TECHNOLOGY SCHOOL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE Security analysis for MQTT in Internet of Things DIEGO SALAS UGALDE Master in Network Services and Systems Date: November 22, 2018 Supervisor: Johan Gustafsson (Zyax AB) Examiner: Panos Papadimitratos (KTH) Swedish title: Säkerhet analys för MQTT i IoT School of Electrical Engineering and Computer Science iii Abstract Internet of Things, i.e. IoT, has become a very trending topic in re- search and has been investigated in recent years. There can be several different scenarios and implementations where IoT is involved. Each of them has its requirements. In these type IoT networks new com- munication protocols which are meant to be lightweight are included such as MQTT. In this thesis there are two key aspects which are under study: secu- rity and achieving a lightweight communication. We want to propose a secure and lightweight solution in an IoT scenario using MQTT as the communication protocol. We perform different experiments with different implementations over MQTT which we evaluate, compare and analyze. The results obtained help to answer our research questions and show that the proposed solution fulfills the goals we proposed in the beginning of this work. iv Sammanfattning "Internet of Things", dvs IoT, har blivit ett mycket trenderande ämne inom forskning och har undersökts de senaste åren. Det kan finnas flera olika scenarier och implementeringar där IoT är involverad. Var och en av dem har sina krav. -
Test-Beds and Guidelines for Securing Iot Products and for Secure Set-Up Production Environments
IoT4CPS – Trustworthy IoT for CPS FFG - ICT of the Future Project No. 863129 Deliverable D7.4 Test-beds and guidelines for securing IoT products and for secure set-up production environments The IoT4CPS Consortium: AIT – Austrian Institute of Technology GmbH AVL – AVL List GmbH DUK – Donau-Universit t Krems I!AT – In"neon Technologies Austria AG #KU – JK Universit t Lin$ / Institute for &ervasive 'om(uting #) – Joanneum )esearch !orschungsgesellschaft mbH *+KIA – No,ia -olutions an. Net/or,s 0sterreich GmbH *1& – *1& -emicon.uctors Austria GmbH -2A – -2A )esearch GmbH -)!G – -al$burg )esearch !orschungsgesellschaft -''H – -oft/are 'om(etence 'enter Hagenberg GmbH -AG0 – -iemens AG 0sterreich TTTech – TTTech 'om(utertechni, AG IAIK – TU Gra$ / Institute for A((lie. Information &rocessing an. 'ommunications ITI – TU Gra$ / Institute for Technical Informatics TU3 – TU 3ien / Institute of 'om(uter 4ngineering 1*4T – 1-Net -ervices GmbH © Copyright 2020, the Members of the IoT4CPS Consortium !or more information on this .ocument or the IoT5'&- (ro6ect, (lease contact8 9ario Drobics7 AIT Austrian Institute of Technology7 mario:.robics@ait:ac:at IoT4C&- – <=>?@A Test-be.s an. guidelines for securing IoT (ro.ucts an. for secure set-up (ro.uction environments Dissemination level8 &U2LI' Document Control Title8 Test-be.s an. gui.elines for securing IoT (ro.ucts an. for secure set-u( (ro.uction environments Ty(e8 &ublic 4.itorBsC8 Katharina Kloiber 4-mail8 ,,;D-net:at AuthorBsC8 Katharina Kloiber, Ni,olaus DEr,, -ilvio -tern )evie/erBsC8 -te(hanie von )E.en, Violeta Dam6anovic, Leo Ha((-2otler Doc ID8 DF:5 Amendment History Version Date Author Description/Comments VG:? ?>:G?:@G@G -ilvio -tern Technology Analysis VG:@ ?G:G>:@G@G -ilvio -tern &ossible )esearch !iel.s for the -2I--ystem VG:> >?:G<:@G@G Katharina Kloiber Initial version (re(are. -
An Iot-Based Mobile System for Safety Monitoring of Lone Workers
IoT Article An IoT-Based Mobile System for Safety Monitoring of Lone Workers Pietro Battistoni * , Monica Sebillo and Giuliana Vitiello LabGis Laboratory, Computer Science Department, University of Salerno, 84084 Fisciano, Italy; [email protected] (M.S.); [email protected] (G.V.) * Correspondence: [email protected] Abstract: The European Agency for Safety and Health at Work considers Smart Personal Protective Equipment as “Intelligent Protection For The Future”. It mainly consists of electronic components that collect data about their use, the workers who wear them, and the working environment. This paper proposes a distributed solution of Smart Personal Protective Equipment for the safety monitoring of Lone Workers by adopting low-cost electronic devices. In addition to the same hazards as anyone else, Lone Workers need additional and specific systems due to the higher risk they run on a work site. To this end, the Edge-Computing paradigm can be adopted to deploy an architecture embedding wearable devices, which alerts safety managers when workers do not wear the prescribed Personal Protective Equipment and supports a fast rescue when a worker seeks help or an accidental fall is automatically detected. The proposed system is a work-in-progress which provides an architecture design to accommodate different requirements, namely the deployment difficulties at temporary and large working sites, the maintenance and connectivity recurring cost issues, the respect for the workers’ privacy, and the simplicity of use for workers and their supervisors. Citation: Battistoni, P.; Sebillo, M.; Keywords: IoT mobile solution; Edge-Computing paradigm; wearable devices; MQTT protocol; safety Vitiello, G. An IoT-Based Mobile monitoring; Smart Personal Protective Equipment; Fog-Computing System for Safety Monitoring of Lone Workers. -
UG1144 (V2020.1) July 24, 2020 Revision History
See all versions of this document PetaLinux Tools Documentation Reference Guide UG1144 (v2020.1) July 24, 2020 Revision History Revision History The following table shows the revision history for this document. Section Revision Summary 07/24/2020 Version 2020.1 Appendix H: Partitioning and Formatting an SD Card Added a new appendix. 06/03/2020 Version 2020.1 Chapter 2: Setting Up Your Environment Added the Installing a Preferred eSDK as part of the PetaLinux Tool section. Chapter 4: Configuring and Building Added the PetaLinux Commands with Equivalent devtool Commands section. Chapter 6: Upgrading the Workspace Added new sections: petalinux-upgrade Options, Upgrading Between Minor Releases (2020.1 Tool with 2020.2 Tool) , Upgrading the Installed Tool with More Platforms, and Upgrading the Installed Tool with your Customized Platform. Chapter 7: Customizing the Project Added new sections: Creating Partitioned Images Using Wic and Configuring SD Card ext File System Boot. Chapter 8: Customizing the Root File System Added the Appending Root File System Packages section. Chapter 10: Advanced Configurations Updated PetaLinux Menuconfig System. Chapter 11: Yocto Features Added the Adding Extra Users to the PetaLinux System section. Appendix A: Migration Added Tool/Project Directory Structure. UG1144 (v2020.1) July 24, 2020Send Feedback www.xilinx.com PetaLinux Tools Documentation Reference Guide 2 Table of Contents Revision History...............................................................................................................2 -
Reverse Engineering for Fun and Profit :)
Reverse Engineering for fun and profit :) gynvael.coldwind//vx S E C o n f e r e n c e 2 k + 1 0 /bin/whois ReverseCraft pentesty RE gynvael.coldwind//vx vuln. research code S E C o n f e r e n c e 2 k + 1 0 /etc/motd Reverse Engineering Co to? Po co to? (w jakim celu się reversuje, przykłady) Jak to? (narzędzia, techniki) S E C o n f e r e n c e 2 k + 1 0 /etc/motd Reverse Engineering ??? technika odwracania inżynieria odwrotna inżynieria wsteczna analiza odwrotna analiza wsteczna programowanie zwrotne (???) Programowanie od tyłu? S E C o n f e r e n c e 2 k + 1 0 /etc/motd Programowanie koncept projekt kod binarka S E C o n f e r e n c e 2 k + 1 0 /etc/motd Reverse Engineering koncept projekt kod binarka S E C o n f e r e n c e 2 k + 1 0 /etc/motd ? Anty RE = RE ? S E C o n f e r e n c e 2 k + 1 0 /etc/motd ?Nowe RE? S E C o n f e r e n c e 2 k + 1 0 kto reversuje? Kto reversuje? Hobbyści Profesjonaliści Researcherzy Black Market S E C o n f e r e n c e 2 k + 1 0 Hobbyści Cracking komercyjne crackme oprogramowanie keygenme *me zabezpieczenia (czyli to co wczoraj antypirackie: na warsztatach ;>) ?@!#%@#$%^ (next slide) S E C o n f e r e n c e 2 k + 1 0 Hobbyści - „zabezpieczenia” losowy screen znaleziony na google images EA Spore (SecuROM=1 of 5 @ amazon, 1.7mln @ TPB) S E C o n f e r e n c e 2 k + 1 0 Hobbyści - „zabezpieczenia” losowy screen znaleziony na google images Ubisoft Assasins Creed 2 – Single player req. -
CHARON-AXP V4.9 for Linux Users Guide
Document number: 60-16-034-001 CHARON-AXP V4.9 for Linux Users Guide September, 2018 1 / 255 Contents Introduction . 3 Conventions . 6 CHARON-AXP for Linux installation . 7 Running CHARON-AXP for Linux . 22 CHARON-AXP for Linux configuration . 27 Migration to CHARON-AXP for Linux . 43 CHARON-AXP for Linux virtual network . 51 CHARON-AXP for Linux licensing . 55 CHARON-AXP for Linux utilities . 65 mkdskcmd . 66 mtd . 69 hasp_srm_view . 71 hasp_update . 73 ncu . 74 CHARON Guest Utilities for OpenVMS . 82 CHARON-AXP for Linux configuration details . 86 General Settings . 87 Core Devices . 95 Console . 115 Placement of peripheral devices on PCI bus . 121 PBXDA PCI serial lines adapter . 159 Disks and tapes . 162 KZPBA PCI SCSI adapter . 163 KGPSA-CA PCI Fibre Channel adapter . 172 Acer Labs 1543C IDE/ATAPI CD-ROM adapter . 188 PCI I/O Bypass controller . 190 Finding the target "/dev/sg" device . 197 Networking . 199 AlphaStation Sound Card (AD1848) emulation . 206 Sample configuration files . 207 HP AlphaServer 800 configuration file . 208 HP AlphaServer 4000 configuration file . 215 HP AlphaServer DS20 configuration file . 222 HP AlphaServer ES40 configuration file . 229 HP AlphaServer GS80 configuration file . 236 CHARON-AXP for Linux deinstallation . 243 Appendixes . 244 glibc.i686 installation without Internet connection . 245 How to implement time synchronisation between CHARON-AXP Host OS and Guest OS . 249 2 / 255 Document number: 60-16-034-001 Introduction Table of Contents General Description The principles of HP Alpha Hardware Virtualization Virtualized hardware Host platform General Description HP Alpha Hardware Virtualization allows users of HP Alpha (Previously known as DIGITAL Alpha) computers to move application software and user data to a modern Intel or AMD based x64 compatible platform without having to make changes to software and data.