A Comparison of Java, Flutter and Kotlin/Native Technologies for Sensor Data-Driven Applications
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Symbian OS Platform Security Model
THE SYMBIAN OS BECAME FULLY OPEN sourced in February 2010, which opens even BO LI, ELENA RESHETOVA, AND T U O M A S A U R A more possibilities for application develop- ers to understand and analyze its security Symbian OS solution. We present a short introduction to the software features of Symbian plat- platform form security: three trust tiers, capability model, data caging, and the Symbian signed security model process. We also try to compare the security Bo Li is a second-year student in the master’s solution with the classical design principles program in security and mobile computing in this area, as well as briefly discuss gen- at Aalto University, Finland. He got his bach- elor’s degree in communications engineering eral design challenges and potential weak- in 2008 from Fudan University, China. nesses. [email protected] Elena Reshetova is a senior security engineer Introduction at Nokia, as well as a postgraduate student at Aalto University. She is interested in With the development of mobile devices and mo- various research areas related to platform bile computers, more and more people rely strongly security, security aspects of networking, and on them. People use mobile devices and mobile cryptography. computers to arrange their schedules, contact each [email protected] other, process emails, and share rich media con- tent. People believe it is safe to do so because it Tuomas Aura is a professor at Aalto Uni- versity, Finland. His research interests are feels secure just knowing it is “right there with security and privacy in communications you” [8]. -
I Have Often Mused About How the Architecture of the Cpus We Use Influ
Musings RIK FARROWEDITORIAL Rik is the editor of ;login:. have often mused about how the architecture of the CPUs we use influ- [email protected] ences the way our operating systems and applications are designed. A I book I reviewed in this issue on the history of computing managed to cement those ideas in my head. Basically, we’ve been reprising time-sharing systems since the mid-60s, whereas most systems serve very different pur- poses today. Along the way, I also encountered a couple of interesting data points, via pointers from friends who have been influencing me. One was Halvar Flake’s CYCON 2018 talk [1], and another was about a new OS project at Google. The opinion piece by Jan Mühlberg and Jo Van Bulck that appears in this issue influenced me as well, as it describes a CPU feature that, among other things, could block the use of gadgets in return-oriented programming (ROP). Flake explained that much of our current problems with security have to do with cheap com- plexity. Even though a device, like a microwave oven or intravenous drip-rate controller, only requires a PIC (Programmable Interrupt Controller), it may instead have a full-blown CPU running Windows or Linux inside it. CPUs are, by design, flexible enough to model any set of states, making them much more complex than what is needed inside a fairly simple device. Designers instead choose to use a full-blown CPU, usually with an OS not designed to be embedded, to model the states required. Vendors do this because many more people under- stand Windows or Linux programming than know how to program a PIC. -
Symbian Foundation Press Conference
Symbian Foundation Press conference M/C – Merran Wrigley Exciting Internet experiences for the aspirations of billions 2 © 2008 Symbian Foundation Mobile software set free Symbian Foundation Kai Öistämö Executive Vice President, Nokia Shared vision for an unparalleled open mobile software platform 4 © 2008 Symbian Foundation That unites Symbian OS, S60, UIQ and MOAP(S) 5 © 2008 Symbian Foundation Creating the most proven, open, complete mobile software platform 6 © 2008 Symbian Foundation With over 200 million devices already shipped 7 © 2008 Symbian Foundation For free. 8 © 2008 Symbian Foundation Creating one platform, royalty-free Foundation Differentiated Member experience MOAP(S) 9 © 2008 Symbian Foundation Creating one platform, royalty-free Foundation Differentiated Member experience Symbian Foundation Platform Applications suite Runtimes UI framework Middleware Operating system Tools & SDK 10 © 2008 Symbian Foundation The first step to our goal • Acquiring Symbian Ltd • Closing expected in Q4 2008 • Symbian Ltd to be part of Nokia • Nokia will contribute Symbian OS and S60 to Symbian Foundation 11 © 2008 Symbian Foundation Fulfilling the Symbian mission Symbian Foundation Nigel Clifford CEO, Symbian Symbian Ltd Mission To become the most widely used software platform on the planet 13 © 2008 Symbian Foundation The leading global open platform 12% Symbian Linux 11% Microsoft RIM 60% Apple 11% Other Source Canalys – Cumulative 4% 12 month period to Q1 2008 2% 14 © 2008 Symbian Foundation The choice for the top vendors Samsung MOTO -
Operating System Components for an Embedded Linux System
INSTITUTEFORREAL-TIMECOMPUTERSYSTEMS TECHNISCHEUNIVERSITATM¨ UNCHEN¨ PROFESSOR G. F ARBER¨ Operating System Components for an Embedded Linux System Martin Hintermann Studienarbeit ii Operating System Components for an Embedded Linux System Studienarbeit Executed at the Institute for Real-Time Computer Systems Technische Universitat¨ Munchen¨ Prof. Dr.-Ing. Georg Farber¨ Advisor: Prof.Dr.rer.nat.habil. Thomas Braunl¨ Author: Martin Hintermann Kirchberg 34 82069 Hohenschaftlarn¨ Submitted in February 2007 iii Acknowledgements At first, i would like to thank my supervisor Prof. Dr. Thomas Braunl¨ for giving me the opportunity to take part at a really interesting project. Many thanks to Thomas Sommer, my project partner, for his contribution to our good work. I also want to thank also Bernard Blackham for his assistance by email and phone at any time. In my opinion, it was a great cooperation of all persons taking part in this project. Abstract Embedded systems can be found in more and more devices. Linux as a free operating system is also becoming more and more important in embedded applications. Linux even replaces other operating systems in certain areas (e.g. mobile phones). This thesis deals with the employment of Linux in embedded systems. Various architectures of embedded systems are introduced and the characteristics of common operating systems for these devices are reviewed. The architecture of Linux is examined by looking at the particular components such as kernel, standard C libraries and POSIX tools for embedded systems. Furthermore, there is a survey of real-time extensions for the Linux kernel. The thesis also treats software development for embedded Linux ranging from the prerequi- sites for compiling software to the debugging of binaries. -
Fuchsia OS - a Threat to Android
Fuchsia OS - A Threat to Android Taranjeet Singh1, Rishabh Bhardwaj2 1,2Research Scholar, Institute of Information Technology and Management [email protected] , [email protected] Abstract-Fuchsia is a fairly new Operating System both personal computers as well as low power whose development was started back in 2016. running devices, particularly IOT devices. Android supports various types of devices which is Initially, Android was developed for cameras and having different types of screen size, Architecture, then it is extended to other electronic devices, etc. But problem is that whenever google releases developing apps for these devices are still a complex new updates due to a large variety of devices lots of task because of compatibility issues of native devices doesn't receive updates that are the main devices. issue with android. Android operating system supports various types of This review is about fuchsia and its current Status devices such as android wear devices, auto cars, and how is it different from the Android operating tablets, smart phones, etc. so to develop an android system. app for all these devices is a very tedious task. Keywords: Internet Of Things( IOT ), Operating The Major problem with android is, not all the System (OS), Microkernel, Little Kernel, Software devices receive updates on time. Development Kit (SDK), GitHub Fuchsia is developed to overcome these problems, I INTRODUCTION with fuchsia we can develop apps for all these devices and they can be implemented flawlessly. Fuchsia is an open source Hybrid Real-time Operating System which is under development. A. Architecture of Fuchsia Prior to Fuchsia we already had android OS which is Fuchsia uses Microkernel which is an evolution of used in almost all kinds of devices. -
Instituto Tecnológico De Costa Rica Escuela De Ingenier´Ia En
Instituto Tecnol´ogicode Costa Rica Escuela de Ingenier´ıaen Electr´onica Improvement of small satellite's software design with build system and continuous integration tools para optar por el t´ıtulode Ingeniero en Electr´onicacon ´enfasisen sistemas empotrados con el grado acad´emicode Maestr´ıa Allan Granados [email protected] Cartago, Diciembre, 2015 2 Contents 1 Introduction 8 1.1 Previous work focus on small satellites . .9 1.2 Problem statement . 11 1.3 Proposed solution . 13 1.3.1 Proposed development . 13 2 Software development approaches for small satellites 15 2.1 Software methodologies used for satellites design . 15 2.2 Small satellite design and structure . 17 2.3 Central computation system in satellites. Homogeneous and Het- erogeneous systems . 18 2.4 Different approach on software development for small satellites . 20 2.4.1 Software development: Monolithic approach . 20 2.4.2 Software development: Development by component . 21 2.5 Open Source tools on the design and implementation of software satellite . 23 3 Integration of build system for small satellite missions 24 3.1 Build systems as an improvement on the design methodology . 24 3.1.1 Yocto build system . 29 4 Development platforms 32 4.1 Beagleboard XM . 32 4.2 Pandaboard . 35 4.3 Beaglebone . 38 5 Design and implementation of the construction system 41 5.1 Construction System . 41 5.1.1 The hardware independent layer: meta-tecSat . 42 5.1.2 The hardware dependent later: meta-tecSat-target . 43 5.1.3 Integration of the dependent and independent hardware layers in the construction system . 44 5.1.4 Adding a new recipe to a layer . -
ARM Debugger
ARM Debugger TRACE32 Online Help TRACE32 Directory TRACE32 Index TRACE32 Documents ...................................................................................................................... ICD In-Circuit Debugger ................................................................................................................ Processor Architecture Manuals .............................................................................................. ARM/CORTEX/XSCALE ........................................................................................................... ARM Debugger ..................................................................................................................... 1 History ................................................................................................................................ 7 Warning .............................................................................................................................. 8 Introduction ....................................................................................................................... 9 Brief Overview of Documents for New Users 9 Demo and Start-up Scripts 10 Quick Start of the JTAG Debugger .................................................................................. 12 FAQ ..................................................................................................................................... 13 Troubleshooting ............................................................................................................... -
Safety on the Line Exposing the Myth of Mobile Communication Security
Safety on the Line Exposing the myth of mobile communication security Prepared by: Supported by: Cormac Callanan Freedom House and Hein Dries-Ziekenheiner Broadcasting Board of Governors This report has been prepared within the framework Contacts of Freedom House/Broadcasting Board of Governors funding. The views expressed in this document do not FOR FURTHER INFORMATION necessarily reflect those of Freedom House nor those of PLEASE CONTACT: the Broadcasting Board of Governors. Mr. Cormac Callanan July 2012 Email: [email protected] Mr. Hein Dries-Ziekenheiner Email: [email protected] 2 Safety on the Line Exposing the myth of mobile communication security Authors CORMAC CALLANAN HEIN DRIES-ZIEKENHEINER IRELAND THE NETHERLANDS Cormac Callanan is director of Aconite Internet Solutions Hein Dries-Ziekenheiner LL.M is the CEO of VIGILO (www.aconite.com), which provides expertise in policy consult, a Netherlands based consultancy specializing development in the area of cybercrime and internet in internet enforcement, cybercrime and IT law. Hein security and safety. holds a Master’s degree in Dutch civil law from Leiden University and has more than 10 years of legal and Holding an MSc in Computer Science, he has over 25 technical experience in forensic IT and law enforcement years working experience on international computer on the internet. networks and 10 years experience in the area of cybercrime. He has provided training at Interpol and Hein was technical advisor to the acclaimed Netherlands Europol and to law enforcement agencies around the anti-spam team at OPTA, the Netherlands Independent world. He has worked on policy development with the Post and Telecommunications Authority, and frequently Council of Europe and the UNODC. -
LNCS 7618, Pp
Symbian Smartphone Forensics and Security: Recovery of Privacy-Protected Deleted Data Vrizlynn L.L. Thing and Darell J.J. Tan Digital Forensics Lab Cryptography & Security Department Institute for Infocomm Research, Singapore {vriz,jjdtan}@i2r.a-star.edu.sg Abstract. In this paper, we discuss our proposed method to acquire privacy-protected data from Symbian smartphones running the latest OS version 9.4, S60 5th Edition, and smartphones running the prior OS ver- sion 9.3, S60 3rd Edition. We then present our reverse-engineering analy- sis work on the active and deleted Short Message Service (SMS) message recovery from the on-phone memory in the Symbian smartphones. We describe the encoding and format of the raw data of the SMS messages so as to achieve an automated parsing and recovery of the messages. Our experiments on various sent, received, draft and deleted messages showed that we were able to recover both the active (in its entirety) and deleted SMS messages (partially) correctly and automatically. Keywords: Symbian forensics, security, memory analysis, mobile phones, smartphones, data acquisition, deleted SMS message recovery. 1 Introduction As mobile phones are becoming increasingly prevalent and are constantly evolv- ing into “smarter” devices (i.e. smartphones with higher processing power and enhanced features), capabilities to perform in-depth forensics on these devices also become essential. However, most current mobile phone forensics tools are still restricted to the acquisition and analysis of basic active files and data (i.e. logical data acquisition) on the Subscriber Identity Module (SIM), memory cards and the internal flash memory [1–7]. In the event that private application data is isolated and data-caging is in place, such security mechanisms prevent in-depth acquisition of important ev- identiary data. -
Symbian Phone Security
Symbian phone Security Job de Haas ITSX Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 Overview • Symbian OS. • Security Risks and Features. • Taking it apart. • Conclusions. Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 Symbian History • Psion owner of EPOC OS, originally from 1989, released EPOC32 in 1996 • EPOC32 was designed with OO in C++ • 1998: Symbian Ltd. formed by Ericsson, Nokia, Motorola and Psion. • EPOC renamed to Symbian OS • Currently ~30 phones with Symbian and 15 licensees. Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 Symbian Organization • Symbian licenses the main OS • Two GUI’s on top of Symbian: – Series 60, led by Nokia – UIQ, subsidiary of Symbian • Ownership: – Nokia 47.5% Panasonic 10.5% – Ericsson 15.6% Siemens 8.4% – SonyEricsson 13.1% Samsung 4.5% Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 Symbian Versions • EPOC32 • EPOC R5 • Symbian v6.0 • Symbian v7.0 • Symbian v8.0 • Symbian v9.0 announced for Q3 ‘05 Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 Series60 versions • 1st edition • 2nd edition • 3rd edition, announced feb. 2005 Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 UIQ versions • UIQ 1.0 • UIQ 2.1 • UIQ 3.0 released feb 2005 Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 Symbian OS Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 Symbian OS • Multitasking, preemptive kernel. • MMU protection of kernel and process spaces. • Strong Client – Server architecture • Plug-in patterns • Filesystem in ROM, Flash, RAM and on SD-card Symbian phone Job de Haas BlackHat Security ITSX BV Amsterdam 2005 Symbian development • Symbian v6 and v7 are compiled with a modified GCC. -
A Security Architecture for Accessing Health Records on Mobile Phones
A SECURITY ARCHITECTURE FOR ACCESSING HEALTH RECORDS ON MOBILE PHONES Alexandra Dmitrienko, Zecir Hadzic, Hans Lohr,¨ Marcel Winandy Horst Gortz¨ Institute for IT Security, Ruhr-University Bochum, Bochum, Germany Ahmad-Reza Sadeghi Fraunhofer-Institut SIT Darmstadt, Technische Universitat¨ Darmstadt, Darmstadt, Germany Keywords: Health records, Mobile computing, Smartphone, Security architecture, Trusted computing. Abstract: Using mobile phones to access healthcare data is an upcoming application scenario of increasing importance in the near future. However, important aspects to consider in this context are the high security and privacy requirements for sensitive medical data. Current mobile phones using standard operating systems and software cannot offer appropriate protection for sensitive data, although the hardware platform often offers dedicated security features. Malicious software (malware) like Trojan horses on the mobile phone could gain unautho- rized access to sensitive medical data. In this paper, we propose a complete security framework to protect medical data (such as electronic health records) and authentication credentials that are used to access e-health servers. Derived from a generic archi- tecture that can be used for PCs, we introduce a security architecture specifically for mobile phones, based on existing hardware security extensions. We describe security building blocks, including trusted hardware features, a security kernel providing isolated application environments as well as a secure graphical user in- terface, and a trusted wallet (TruWallet) for secure authentication to e-health servers. Moreover, we present a prototype implementation of the trusted wallet on a current smartphone: the Nokia N900. Based on our architecture, health care professionals can safely and securely process medical data on their mobile phones without the risk of disclosing sensitive information as compared to commodity mobile operating systems. -
Introduction to Symbian OS
Fundamentals of Symbian OS Introduction to Symbian OS Introduction Part 1a Copyright © 2001-2007 Symbian Software Ltd. Fundamentals of Symbian OS Introduction Introduction This lecture serves as general introduction to the course • The background of Symbian the company • Symbian OS C++ dialect • The architecture of Symbian OS • What is covered in the course • Resources 2 Copyright © 2001-2007 Symbian Software Ltd. Fundamentals of Symbian OS Introduction Background 3 Copyright © 2001-2007 Symbian Software Ltd. Fundamentals of Symbian OS Introduction Before Symbian - Psion Psion was established in 1980 • To develop games and software for the Z80-based Sinclair ZX81 and ZX Spectrum Products included • Flight simulator, “Horace Goes Skiing”, Psion Chess, Space Raiders and other games. • Psion Chess for the ZX81 took 1K memory • Office suite for the Sinclair QL (1983) 4 Copyright © 2001-2007 Symbian Software Ltd. Fundamentals of Symbian OS Introduction Before Symbian - Psion Mid ‘80s - Hardware • The 6301 based 8-bit Organiser (1984) - 14cm x 9cm, 2K RAM, 4K ROM, 8K datapak, 6 months battery life! • Organiser II (1986) - the world’s first proper PDA • Organiser II variants were created: up to 64K memory, 4 line screen resolution, add-on hardware • Half a million sold over a decade 5 Copyright © 2001-2007 Symbian Software Ltd. Fundamentals of Symbian OS Introduction Before Symbian - Psion 1989 - MC400 laptop • 16-bit “EPOC” Operating System - multi tasking, GUI, built-in apps • Exceptional power management, screen technology 1991 - Series 3, 1993 - Series 3a, 1996 Series 3c/Siena, Series 3mx • Clam shell organisers, built in apps, OPL, up to 2MB memory • Built on EPOC • Over 1.5 million units sold 1997 - Series 5 • 32 bit OS “EPOC32” (EPOC -> EPOC16 -> SIBO) • Slide out QWERTY keyboard, touch screen, 4MB/8MB • Implemented using C++ http://3lib.ukonline.co.uk/historyofpsion.htm 6 Copyright © 2001-2007 Symbian Software Ltd.