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Differential Fuzzing the Webassembly
Master’s Programme in Security and Cloud Computing Differential Fuzzing the WebAssembly Master’s Thesis Gilang Mentari Hamidy MASTER’S THESIS Aalto University - EURECOM MASTER’STHESIS 2020 Differential Fuzzing the WebAssembly Fuzzing Différentiel le WebAssembly Gilang Mentari Hamidy This thesis is a public document and does not contain any confidential information. Cette thèse est un document public et ne contient aucun information confidentielle. Thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Technology. Antibes, 27 July 2020 Supervisor: Prof. Davide Balzarotti, EURECOM Co-Supervisor: Prof. Jan-Erik Ekberg, Aalto University Copyright © 2020 Gilang Mentari Hamidy Aalto University - School of Science EURECOM Master’s Programme in Security and Cloud Computing Abstract Author Gilang Mentari Hamidy Title Differential Fuzzing the WebAssembly School School of Science Degree programme Master of Science Major Security and Cloud Computing (SECCLO) Code SCI3084 Supervisor Prof. Davide Balzarotti, EURECOM Prof. Jan-Erik Ekberg, Aalto University Level Master’s thesis Date 27 July 2020 Pages 133 Language English Abstract WebAssembly, colloquially known as Wasm, is a specification for an intermediate representation that is suitable for the web environment, particularly in the client-side. It provides a machine abstraction and hardware-agnostic instruction sets, where a high-level programming language can target the compilation to the Wasm instead of specific hardware architecture. The JavaScript engine implements the Wasm specification and recompiles the Wasm instruction to the target machine instruction where the program is executed. Technically, Wasm is similar to a popular virtual machine bytecode, such as Java Virtual Machine (JVM) or Microsoft Intermediate Language (MSIL). -
04 ISC 228-TESIS.Pdf
UTN –FICA Análisis y Estudio de Tecnología Ruby on Rails con bases de datos Postgresql para Aplicaciones Web 2.0 UNIVERSIDAD TÉCNICA DEL NORTE Facultad de Ingeniería en Ciencias Aplicadas Carrera de Ingeniería en Sistemas Computacionales TESIS PREVIA OBTENCIÓN DEL TITULO DE INGENIERO EN SISTEMAS COMPUTACIONALES Tema: “Análisis y Estudio de Tecnología Ruby on Rails con bases de datos Postgres para Aplicaciones Web 2.0” Aplicativo: Implementación del Portal Web 2.0 para la Mancomunidad de la Cuenca del Río Mira AUTOR : CHRISTIAN FERNANDO REALPE ROSERO. DIRECTOR : ING. MARCO PUSDÁ. IBARRA – ECUADOR, 2012 Christian Fernando Realpe Rosero Implementación del Portal Web 2.0 para la Mancomunidad de la Cuenca del Río Mira Print to PDF without this message by purchasing novaPDF (http://www.novapdf.com/) UTN –FICA Análisis y Estudio de Tecnología Ruby on Rails con bases de datos Postgresql para Aplicaciones Web 2.0 Certifico: Que la Tesis previa a la obtención del título de Ingeniería en Sistemas Computacionales con el tema “Análisis y Estudio de Tecnología Ruby on Rails con bases de datos Postgres para Aplicaciones Web 2.0”con el aplicativo “Implementación del Portal Web 2.0 para la Mancomunidad de la Cuenca del Río Mira” ha sido desarrollada y terminada en su totalidad por el Sr. Christian Fernando Realpe Rosero con C.C. 100251109-3 bajo mi supervisión para lo cual firmo en constancia. Atentamente, Ing. Marco Pusdá DIRECTOR DE TESIS Christian Fernando Realpe Rosero Implementación del Portal Web 2.0 para la Mancomunidad de la Cuenca del Río Mira Print to PDF without this message by purchasing novaPDF (http://www.novapdf.com/) UTN –FICA Análisis y Estudio de Tecnología Ruby on Rails con bases de datos Postgresql para Aplicaciones Web 2.0 UNIVERSIDAD TÉCNICA DEL NORTE CESIÓN DE DERECHOS DE AUTOR DEL TRABAJO DE INVESTIGACIÓN A FAVOR DE LA UNIVERSIDAD TÉCNICA DEL NORTE Yo, CHRISTIAN FERNANDO REALPE ROSERO, con cedula de identidad Nro. -
Authentication in the Mesh with Webassembly
Authentication in the mesh with WebAssembly Sondre Halvorsen Master’s Thesis, Spring 2021 Thesis submitted for the degree of Master in Informatics: programming and system architecture 30 credits Department of Informatics Faculty of mathematics and natural sciences UNIVERSITY OF OSLO Spring 2021 © 2021 Sondre Halvorsen Master Thesis http://www.duo.uio.no/ Printed: Reprosentralen, University of Oslo Abstract At the start of the last decade Marc Andreessen stated in his now famous blog entry; ‘Software is eating the world’ [173], and as software is eating the world, problems stemming from its security, or lack thereof, is eating it as well. Or- ganisations are increasingly moving to the cloud and adopting new architecture patterns in this new environment, such as cloud native and microservice ar- chitecture. While moving to the cloud generally results in better security for organisations, due to large professional platforms, microservice architectures in- troduce some new problems in regards to cross-cutting concerns like security, robustness and observabiltity. Service mesh is a technology that aims to provide cloud native and application agnostic solution to many of the challenges with micro service architectures. In parallel with the cloud native revolution there has been innovations in areas like security as well. Authentication, authoriza- tion, and access control have changed drastically, with new requirements for how users want to manage and use their identity. Zero Trust Architectures is an example of this drawn to its logical conclusion where no connection is trusted by default. Unfortunately security breaches stemming from poor implementation of security protocols and frameworks rank among the highest still. -
Interfacing Apache HTTP Server 2.4 with External Applications
Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick November 6, 2012 Who am I? Interfacing Apache HTTP Server 2.4 with External Applications Met Unix (in the form of Xenix) in 1985 Jeff Trawick Joined IBM in 1990 to work on network software for mainframes Moved to a different organization in 2000 to work on Apache httpd Later spent about 4 years at Sun/Oracle Got tired of being tired of being an employee of too-huge corporation so formed my own too-small company Currently working part-time, coding on other projects, and taking classes Overview Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick Huge problem space, so simplify Perspective: \General purpose" web servers, not minimal application containers which implement HTTP \Applications:" Code that runs dynamically on the server during request processing to process input and generate output Possible web server interactions Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick Native code plugin modules (uhh, assuming server is native code) Non-native code + language interpreter inside server (Lua, Perl, etc.) Arbitrary processes on the other side of a standard wire protocol like HTTP (proxy), CGI, FastCGI, etc. (Java and \all of the above") or private protocol Some hybrid such as mod fcgid mod fcgid as example hybrid Interfacing Apache HTTP Server 2.4 with External Applications Jeff Trawick Supports applications which implement a standard wire protocol, no restriction on implementation mechanism Has extensive support for managing the application[+interpreter] processes so that the management of the application processes is well-integrated with the web server Contrast with mod proxy fcgi (pure FastCGI, no process management) or mod php (no processes/threads other than those of web server). -
Logview Studio Linux Preparation with Mono
LogView Studio Linux Preparation with Mono 2014 by Dominik Schmidt [email protected] © 2014 Dominik Schmidt / Holger Hemmecke I LogView Studio Table of Contents Part I Linux Prepare 1 1 SSH Co..n..n..e..c..t. ........................................................................................................................ 1 2 Raspbe..r.r.y.. .P..i. ......................................................................................................................... 4 System Prepar..a..t.i.o...n.. ............................................................................................................................................... 5 Mono .......................................................................................................................................................... 6 Install Mono......................................................................................................................................................... 7 Compile Mon..o.. .f.r..o..m.. .T..A...R....................................................................................................................................... 8 Compile Mon..o.. .f.r..o..m.. .G...I.T........................................................................................................................................ 9 Testing ......................................................................................................................................................... 10 3 Cubie.t.r.u..c..k.. ......................................................................................................................... -
Concert CHS Bands Turn Down
\ — *♦ ll < l e a t h e r n ^la. M*».Pr«dp. „ 34 60 O-OQ -a. 0.00 U> A{,r* i 80 '~ir~S7 61 0.00 f ‘jZH-45 «0 0.00 QUOTE jO.OO f l u . t r z z U i? “Whoe’er excels In what we Jtw 1 '^dTJO Tvaeo ,49 0.06 prize Appears a hero in our eyes.” Bl Jonathan Swift . , 'y > wtmT H Y E A R — N o . 46 14 Pages This Week CHELSEA, MICHIGAN, THURSDAY, MAY 8, 1969 10c per copy SUBSCRIPTION: $8.00 PER YEAR r « P ■Wf' ’ concert Named for MichiganWeek Michigan Week has been described by one - of America’s leading advertising agencies as Turn Down “Michigan’s biggest public .rela tions program, ”, While, the actual celebration covers eight days beginning the CHS Bands Saturday - preceding the ~nKlrd Sunday in May. every_yeap$_it: is actually the clijnax of a year ,i«a High school Symphony Other program items will in long program in which thousands y Bands will present a elude- Amparita -.Roea . (Spanish of Michigan citizenBf volunteer concert Monday,. May March) .by Texidor; Finale from their time and effort' for .the. bet Sym phony-No. 1 in G-minor by terment of their communities and tae-Third of All School Funds ; nrozrsflit set for '8 p.m. in Kalinnikov; Beguine for Band by state,, the objectives of Michigan i f f & school a,uditori- Osser by the Symphony Band, .YY.GvKi - Eliminated Only 724 Voters directed by, D. Keith Lawson. By & feature Heidi Sprague as Back 1953_a group of Michi She will plarCecile Cha- Other Symphony Band selections gan businessmen, - industrialists; School- Dlitrict voters I Mills said that the schools could >g Concertino for flute, acr include Second Suitfe in F by educators and others decided that overwhelming# defeated a school not operate ^at the__ 1968-69 1evel ' nied by -6 section of - the Holst,_ March, Sbng Without something ibig should be done by miliage yproposaT tharw uld" hdve next year with the same funds increased schooUtaxes by 3.83 mills ,-i&ny Band. -
GNU/Linux Magazine Hors-Série N°66 Apache Introduction
LES GUIDES DE sur les origines d Ce documntslapriéxvj-g(@h.)26013à:5 Tout ce qu LE GUIDE COMPLET POUR METTRE EN PLACE ET BIEN CONFIGURER VOTRE SERVEUR WEB APACH France METRO : 12.90 et sur ses principales Introduction fonctionnalités il faut savoir Apache CH : 18,00 CHF Installation et con Installer son premier BEL/PORT.CONT : 13,90 serveur et choisir le mécanisme d plus adapté authenti HORS-SÉRIE guration ���� cation le DOM TOM : 13,90 Programmer pour le Web PHP, Python, Perl et Ruby : quelques bases pour bien programmer avec les langages du Web CAN : 18,00 $ cad Aller plus loin MAR : 130 MAD Des éléments de con pour des besoins plus spéci (LDAP, chi guration avancée ques L 15066 ff Édité par Les Éditions Diamond Éditions Les par Édité rement, ...) www.ed-diamond.com -66H F: Tutoriels Des pas-à-pas 12,90 pour passer E rapidement à la pratique € -RD Ce documntslapriéxvj-g(@h.)26013à:5 2 GNU/LiNUx maGaziNeHors-série N°66 : apacHe Impression : Service abonnement: Responsable publicité: Conception graphique: Remerciements Secrétaire derédaction Rédacteur enchef: Directeur depublication: Sites : Service commercial: E-mail : Tél. : est éditépar GNU/Linux MagazineHors-Série Éditions Diamond. rédigés parlesmembresdel'équiperédactionnelledes Les articlesnonsignéscontenusdanscenuméroontété respectif. droit ayant leur de propriété sont la dans le magazine les représentés logos Tous respectif. citées dans ce numéro sont déposées par les sans aucun marques Toutes d’information, but publicitaire. leur propriétaire figurant dans d’adresses les et prix pages de sont rédactionnelles indications données Les à renvoyés. titre ni rendus, ni sont GNU/Linux Magazine France Hors-série, publiés ou non, ne particulier, les manuscrits, photos accord écrit et de la société Les éditions Diamond. -
Catalogueformationspythagorefd 2017.Pdf
p.1 Pythagore F.D. : Apprendre à Apprendre Nouveautés 2017 : Pour plonger au coeur des technologies BigData, comprendre les concepts de NoSQL, d'indexation, de sharding, etc ... savoir concevoir les architecture ad-hoc et intégrer, déployer les solutions, nous proposons une gamme complète de formations, ateliers, classes virtuelles qui vont de l'introduction avec des stages comme « BigData, architecture et technologies », jusqu'à l'expertise sur des sujets comme la « Programmation R pour hadoop », ou le stage « Machine Learning : technologies et bonnes pratiques ». Nos domaines d'expertise : • Unix et Linux, et les applicatifs Apache, Openldap, Squid, Nagios, Zabbix, OCS/GLPI, puppet , chef... • la virtualisation et l'orchestration avec xen, kvm, lxc, Docker, et le cloud : cloudstack et openstack, openNebula, Cloudify, cobbler, etc ... • TCP/IP (IPv6, snmp, Architecture, Sécurité, Administration de réseaux IP, VoIP, ...) • Développement (langage C, Java, Jee, technologies Jee, JBoss, WebServices, PHP, Perl, Python , ...) et le développement sur mobiles android • les bases de données et le BigData avec NoSQL, Cassandra, MongoDB, Hadoop, ... Sur chacun de ces domaines, notre équipe possède un excellent niveau d'expertise couvrant l'ensemble du domaine, des fondamentaux aux outils les plus complexes : nos formations vont de l'introduction à Linux, à la Sécurité, la Haute Disponibilité, des concepts NoSQL à la programmation MapReduce Tous nos stages sont l'occasion de nombreuses mises en pratique et exercices de manière à permettre aux participants de bien assimiler les nouveaux concepts. Nos méthodes pédagogiques : Apprendre, concevoir, intégrer ... nous pensons que le meilleur moyen de comprendre les nouveaux concepts et les technologies est la mise en pratique. Nous organisons des ateliers, expériences, démonstrations, .. -
X-Switch: an Efficient, Multi-User, Multi-Language Web Ap- Plication Server
Research Article | SACJ, Submission, 2009 1 X-Switch: An Efficient, Multi-User, Multi-Language Web Ap- plication Server Mayumbo Nyirenda, Hussein Suleman, Andrew Maunder, Reinhardt van Rooyen Department of Computer Science, University of Cape Town ABSTRACT Web applications are usually installed on and accessed through a Web server. For security reasons, these Web servers generally provide very few privileges to Web applications, defaulting to executing them in the realm of a guest account. In addition, performance often is a problem as Web applications may need to be reinitialised with each access. Various solutions have been designed to address these security and performance issues, mostly independently of one another, but most have been language or system-specific. The X-Switch system is proposed as an alternative Web application execution environment, with more secure user-based resource management, persistent application interpreters and support for arbitrary languages/interpreters. Thus it provides a general-purpose environment for developing and deploying Web applications. The X-Switch system's experimental results demonstrated that it can achieve a high level of performance. Furthermore it was shown that X-Switch can provide functionality matching that of existing Web application servers but with the added benefit of multi-user support. Finally the X-Switch system showed that it is feasible to completely separate the deployment platform from the application code, thus ensuring that the developer does not need to modify his/her code to make it compatible with the deployment platform. KEYWORDS: Web application servers, scalability, context switching, process persistence, modularity 1 INTRODUCTION in Java, another in PHP and a third in Perl, it is non-trivial (if at all possible) to have a single Web Web applications that once were fairly monolithic are server software system cater for all languages and, ad- slowly making the transition to collections of cooper- ditionally, keep all interpreters and virtual machines ating services. -
Development Production Line the Short Story
Development Production Line The Short Story Jene Jasper Copyright © 2007-2018 freedumbytes.dev.net (Free Dumb Bytes) Published 3 July 2018 4.0-beta Edition While every precaution has been taken in the preparation of this installation manual, the publisher and author assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To get an idea of the Development Production Line take a look at the following Application Integration overview and Maven vs SonarQube Quality Assurance reports comparison. 1. Operating System ......................................................................................................... 1 1.1. Windows ........................................................................................................... 1 1.1.1. Resources ................................................................................................ 1 1.1.2. Desktop .................................................................................................. 1 1.1.3. Explorer .................................................................................................. 1 1.1.4. Windows 7 Start Menu ................................................................................ 2 1.1.5. Task Manager replacement ........................................................................... 3 1.1.6. Resource Monitor ..................................................................................... -
ENERGY EFFICIENCY in RESIDENTIAL BUILDINGS in MOZAMBIQUE Measurements and Simulations
Report TABK-1027 BZ info: TABK-1027 GABRIEL AUZIANE Rygg: 13,22 = 187 sidor Setup (bxh): 369,22 x 252 Upplaga: 120 Mellanblad: grå and Simulations ENERGY EFFICIENCY IN RESIDENTIAL BUI DINGS MOZAMBIQUE - Measurements Färgsidor: ingen begränsn. ENERGY EFFICIENCY IN RESIDENTIAL BUILDINGS IN MOZAMBIQUE Measurements and Simulations GABRIEL AUZIANE Building Doctoral Thesis Science DEPARTMENT OF CONSTRUCTION SCIENCES DIVISION OF BUILDING SCIENCE ISRN LUTVDG/TABK--15/1027--SE (1-176) | ISSN 1103-4467 ISBN 978-91-7623-159-3 (print) | ISBN 978-91-7623-160-9 (pdf) DOCTORAL THESIS ENERGY EFFICIENCY IN RESIDENTIAL BUILDINGS IN MOZAMBIQUE Measurements and Simulations GABRIEL AUZIANE Copyright © Gabriel Auziane 2015. Printed by Media-Tryck LU, Lund, Sweden, April 2015 (Pl). For information, address: Division of Building Science, LTH, Lund University, Box 118, SE-221 00 Lund, Sweden. Homepage: http://www.bkl.lth.se Acknowledgements I am deeply thankful to my main supervisors, Professor Bertil Fredlund and Associate Professor Susanne Heyden, my co-supervisors Dr. Kurt Källblad, Dr. Daniel Baloi, and the former Head of the Department of Construction Sciences, Professor Göran Sandberg and Professor Anne Landin for offering me the possibility of working in this project and also for support, encouragement, inspiration and patience over the years, without their help and advice this thesis work would never have been successful. Furthermore, I would like to thank the Head of the Division of Structural Mechanics, Professor Erik Serrano and Professors Jesper Arfvidsson and Petter Wallentén, for their supervision of the work and great help in the overall process of this research. I thank Asdi/SAREC for this research receiving financial support through Lund University and Eduardo Mondlane University under the coordination of Prof. -
Enriched Content: Concept, Architecture, Implementation, and Applications
Enriched Content: Concept, Architecture, Implementation, and Applications by Hung-Hsien Chang A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy Department of Computer Science New York University May, 2003 Professor Ken Perlin c Hung-Hsien Chang All Rights Reserved, 2003 ii Dedication To my parents, for their extreme patience and supports. To Ya-Ya, for its “understanding”. iii Acknowledgements It has been a long journey. A page or two of descriptions do not do justice to the people who have assisted me over the years; however, that is why they call such thanks an acknowledgement. For New York University, I thank my advisor Ken Perlin who have given valu- able guidance at critical moments, over the years he showed me his fun computer graphics demo and we shared a few child-like geeky moments, and of course not to mention the influence of his more incurable optimism (I thought I was incurably optimistic.) My reader committee have been supportive: Alan Siegel who has pa- tiently and constantly given me advice on both academics and life, Ernest Davis whose “extreme” encouragement and enthusiasm are crucial while his scrutinizing my work kept me on my toes. My other two thesis committee members are gener- ous and understanding, to say the least. Richard Cole, who I believe, is surprised to see my change, and Dennis Shasha is enduring to my ever changing mind in the last minute. I also thank Chee Yap, Ricky Pollack, Ravi Boppana, Dan Melamed, David Geiger, Ben Goldberg, Bud Mishra, Joe Spencer, late Robert Paige, Arthur Gold- berg, Jack Schwartz, Eero Simoncelli, Zvi Kedam, Dennis Zorin, Victor Schwartz, Vasilis Vassalos, and Deborah Weichenberg.