Secure Data Path on Linux and Nxp I.Mx 8M
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The Guide to DRM. Everything You Need to Know About Digital Rights Management, How It Works and When It’S Required
The Guide to DRM. Everything you need to know about Digital Rights Management, how it works and when it’s required. SHIFT72 | Online VIdeo Platform | White Paper WWW.SHIFT72.COM Table of contents About SHIFT72 ............................................................................................................................................................................ 1 What is DRM? .............................................................................................................................................................................2 How Does it Work? ...................................................................................................................................................................2 DRM Workflow ............................................................................................................................................................................ 3 The Need for Multiple DRM Encryptions ........................................................................................................................... 4 Not all Content Requires DRM .............................................................................................................................................. 4 Playback & Offline Viewing ....................................................................................................................................................5 Leading DRM Systems ............................................................................................................................................................5 -
Open Source Projects As Incubators of Innovation
RESEARCH CONTRIBUTIONS TO ORGANIZATIONAL SOCIOLOGY AND INNOVATION STUDIES / STUTTGARTER BEITRÄGE ZUR ORGANISATIONS- UND INNOVATIONSSOZIOLOGIE SOI Discussion Paper 2017-03 Open Source Projects as Incubators of Innovation From Niche Phenomenon to Integral Part of the Software Industry Jan-Felix Schrape Institute for Social Sciences Organizational Sociology and Innovation Studies Jan-Felix Schrape Open Source Projects as Incubators of Innovation. From Niche Phenomenon to Integral Part of the Software Industry. SOI Discussion Paper 2017-03 University of Stuttgart Institute for Social Sciences Department of Organizational Sociology and Innovation Studies Seidenstr. 36 D-70174 Stuttgart Editor Prof. Dr. Ulrich Dolata Tel.: +49 711 / 685-81001 [email protected] Managing Editor Dr. Jan-Felix Schrape Tel.: +49 711 / 685-81004 [email protected] Research Contributions to Organizational Sociology and Innovation Studies Discussion Paper 2017-03 (May 2017) ISSN 2191-4990 © 2017 by the author(s) Jan-Felix Schrape is senior researcher at the Department of Organizational Sociology and Innovation Studies, University of Stuttgart (Germany). [email protected] Additional downloads from the Department of Organizational Sociology and Innovation Studies at the Institute for Social Sciences (University of Stuttgart) are filed under: http://www.uni-stuttgart.de/soz/oi/publikationen/ Abstract Over the last 20 years, open source development has become an integral part of the software industry and a key component of the innovation strategies of all major IT providers. Against this backdrop, this paper seeks to develop a systematic overview of open source communities and their socio-economic contexts. I begin with a recon- struction of the genesis of open source software projects and their changing relation- ships to established IT companies. -
MINCS - the Container in the Shell (Script)
MINCS - The Container in the Shell (script) - Masami Hiramatsu <[email protected]> Tech Lead, Linaro Ltd. Open Source Summit Japan 2017 LEADING COLLABORATION IN THE ARM ECOSYSTEM Who am I... Masami Hiramatsu - Linux kernel kprobes maintainer - Working for Linaro as a Tech Lead LEADING COLLABORATION IN THE ARM ECOSYSTEM Demo # minc top # minc -r /opt/debian/x86_64 # minc -r /opt/debian/arm64 --arch arm64 LEADING COLLABORATION IN THE ARM ECOSYSTEM What Is MINCS? My Personal Fun Project to learn how linux containers work :-) LEADING COLLABORATION IN THE ARM ECOSYSTEM What Is MINCS? Mini Container Shell Scripts (pronounced ‘minks’) - Container engine implementation using POSIX shell scripts - It is small (~60KB, ~2KLOC) (~20KB in minimum) - It can run on busybox - No architecture dependency (* except for qemu/um mode) - No need for special binaries (* except for libcap, just for capsh --exec) - Main Features - Namespaces (Mount, PID, User, UTS, Net*) - Cgroups (CPU, Memory) - Capabilities - Overlay filesystem - Qemu cross-arch/system emulation - User-mode-linux - Image importing from dockerhub And all are done by CLI commands :-) LEADING COLLABORATION IN THE ARM ECOSYSTEM Why Shell Script? That is my favorite language :-) - Easy to understand for *nix administrators - Just a bunch of commands - Easy to modify - Good for prototyping - Easy to deploy - No architecture dependencies - Very small - Able to run on busybox (+ libcap is perfect) LEADING COLLABORATION IN THE ARM ECOSYSTEM MINCS Use-Cases For Learning - Understand how containers work For Development - Prepare isolated (cross-)build environment For Testing - Test new applications in isolated environment - Test new kernel features on qemu using local tools For products? - Maybe good for embedded devices which has small resources LEADING COLLABORATION IN THE ARM ECOSYSTEM What Is A Linux Container? There are many linux container engines - Docker, LXC, rkt, runc, .. -
LVC20-108 Arm64 Linux Kernel Architecture Update
Arm64 Linux Kernel architecture update Matteo Carlini Director, Software Technology Management Arm – Open Source Software A-profile Architecture new feature names! https://developer.arm.com/architectures/cpu-architecture/a-profile/exploration-tools/feature-names-for-a-profile A-profile features: arm64 kernel support table https://developer.arm.com/tools-and-software/open-source-software/linux-kernel/architecture-and-kvm-enablement A-class architecture kernel enablement – Mar 20 TTS2UXN A64ISA AA32HPD PAUTH CNTS PMU S2FW FHM TTPBHA C B Trace LSE LSE IESB LSMAOC Debug SHA PMU RDMA CompNum JSconv S-EL2 SM SM TTCNP TTST VMID16 HPD v8.3 DIT SHA UAO v8.1 v8.2 RAS v8.4 IDST RCPC CCIDX DotProd ATS1E1 LOR VHE DFE CondM TTRe NV RCPC RAS LP16 m PAN TTHM MPAM AMU TTL NV Debug LVA TLBI VPIPT LPA DCPOP EVT DoPD GTG ECV MTPMU ETS SVE2 SPE SpecRest MPAM CTSS PMU PredInv PAuth2/ Future FGT FPAC architectures v8.0 RNG BT v8.5 v8.6 F64MM DGH DCCVADP MemTag Enablement complete TME EOPD CSEH F32MM TWED Enablement ongoing Enablement TBD SB CMODX I8MM BF16 FRINT CondM AMU N/A – no Kernel impact A-class architecture kernel enablement – Today TTS2UXN A64ISA AA32HPD PAUTH PMU FHM TTPBHA CNTSC S2FWB S-EL2 LSE LSE IESB LSMAOC TTST SHA PMU RDMA CompNum JSconv RAS SM SM TTCNP VMID16 HPD v8.3 DFE DIT SHA UAO TTRem v8.4 v8.1 v8.2 IDST RCPC CCIDX DotProd ATS1E1 LOR VHE Trace CondM NV Debug RCPC RAS LP16 PAN TTHM MPAM AMU Debug LVA NV TLBI TTL VPIPT LPA DCPOP GTG SPE SpecRest ECV MTPMU ETS SVE2 PMU PredInv MPAM CTSS RNG MemTag PAuth2/ Future FGT FPAC architectures v8.0 -
Encoding H.264 Video for Streaming and Progressive Download
W4: KEY ENCODING SKILLS, TECHNOLOGIES TECHNIQUES STREAMING MEDIA EAST - 2019 Jan Ozer www.streaminglearningcenter.com [email protected]/ 276-235-8542 @janozer Agenda • Introduction • Lesson 5: How to build encoding • Lesson 1: Delivering to Computers, ladder with objective quality metrics Mobile, OTT, and Smart TVs • Lesson 6: Current status of CMAF • Lesson 2: Codec review • Lesson 7: Delivering with dynamic • Lesson 3: Delivering HEVC over and static packaging HLS • Lesson 4: Per-title encoding Lesson 1: Delivering to Computers, Mobile, OTT, and Smart TVs • Computers • Mobile • OTT • Smart TVs Choosing an ABR Format for Computers • Can be DASH or HLS • Factors • Off-the-shelf player vendor (JW Player, Bitmovin, THEOPlayer, etc.) • Encoding/transcoding vendor Choosing an ABR Format for iOS • Native support (playback in the browser) • HTTP Live Streaming • Playback via an app • Any, including DASH, Smooth, HDS or RTMP Dynamic Streaming iOS Media Support Native App Codecs H.264 (High, Level 4.2), HEVC Any (Main10, Level 5 high) ABR formats HLS Any DRM FairPlay Any Captions CEA-608/708, WebVTT, IMSC1 Any HDR HDR10, DolbyVision ? http://bit.ly/hls_spec_2017 iOS Encoding Ladders H.264 HEVC http://bit.ly/hls_spec_2017 HEVC Hardware Support - iOS 3 % bit.ly/mobile_HEVC http://bit.ly/glob_med_2019 Android: Codec and ABR Format Support Codecs ABR VP8 (2.3+) • Multiple codecs and ABR H.264 (3+) HLS (3+) technologies • Serious cautions about HLS • DASH now close to 97% • HEVC VP9 (4.4+) DASH 4.4+ Via MSE • Main Profile Level 3 – mobile HEVC (5+) -
Overview of Linaro
HKG18-203: Overview of Linaro DRM Peter Griffin Agenda ● Linaro DRM ● Encrypted Media Extensions (EME) ● Content Decryption Modules (CDMs) ● Linux: ○ OpenCDM / CDMi architecture ○ Linaro CDMs ○ What’s new? ○ What’s left to do? ● Android: ○ ClearKey ○ Playready ○ Widevine ● Secure Data Path (SDP) Terminology ● EME Encrypted Media Extensions ● DRM Digital Rights Management ● CDM Content Decryption Module ● CENC Common Encryption ● Key System - A content protection (DRM) mechanism ● Widevine Google DRM key system ● Playready Microsoft DRM key system ● ClearKey key system using unencrypted key Linaro DRM ● Provide reference DRM integrations of PlayReady, Widevine and Clear Key to our members based on open source components for Linux & AOSP. ● Typically these components include: ○ ARM Trusted Firmware (ATF) ○ OP-TEE ○ EDK2/U-Boot ○ Linux (DRM/KMS, V4L2) ○ AOSP & ExoPlayer ○ Chromium ○ WPE, gstreamer Linaro DRM ● Linux ○ Focus on W3C EME integration with Chromium and WPE ○ Support OpenCDM for DRM interoperability ○ Support for PlayReady and ClearKey CDMs in Linux ● AOSP ○ Focus on DRM integration with AOSP mediadrm & mediacrypto [1] frameworks ○ Support Widevine, PlayReady and ClearKey TAs. ○ Using Exoplayer app for playback [1] https://developer.android.com/reference/android/media/MediaDrm.html Agenda ● Linaro DRM ● Encrypted Media Extensions (EME) ● Content Decryption Modules (CDMs) ● Linux: ○ OpenCDM / CDMi ○ Linaro CDMs ● AOSP: ○ ClearKey ○ Playready ○ Widevine ● Secure Data Path (SDP) Encrypted Media Extensions EME is a W3C proposed recommendation -
Hdcp Support in Optee
HDCP SUPPORT IN OPTEE PRODUCT PRESENTATION Linaro Multimedia Working Group MICR ADVANCED TECHNOLOGIES • https://www.linaro.org/ SEPTEMBER 2019 Agenda • Quick introduction to HDCP • Secure Video Path overview • Current HDCP control in Linux • Proposal to control HDCP in OPTEE • Questions HDCP OVERVIEW 3 HDCP : High bandwidth Digital Content Protection • A digital copy protection developed by Intel™ to prevent copying of digital and audio video content. Before sending data, the source device shall check the destination device is authorized to received it. If so, the source device encrypts the data, only the destination device can decrypt. - data encryption - prevent non-licensed devices from receiving content • Android and Linux NXP bsp manage HDCP at Linux Level, through libDRM. So nothing prevent a user to disable HDCP protection while secure content is under playback. It is a security holes in the Secure Video Path. • HDCP support currently under development for wayland/Weston: https://gitlab.freedesktop.org/wayland/weston/merge_requests/48 • No Open Source solution exists to manage HDCP in secure mode. • HDCP versions: ▪ HDCP 1.X: Hacked: Master key published (leak/reverse engineering) ▪ HDCP 2.0: Hacked before release ▪ HDCP 2.1: Hacked before release ▪ HDCP 2.2: Not yet hacked 4 ▪ HDCP 2.3: Not yet hacked HDCP control state Machine Content with HDCP protection mandatory no yes Local display Local display yes no yes no Video displayed Video displayed without HDCP Digital Display without HDCP Digital Display encryption encryption yes no yes no It means we have analog display Video displayed Video displayed HDCP supported without HDCP HDCP supported without HDCP encryption encryption yes no yes no Video displayed Video displayed without Widevine/PlayReady To Video not displayed Application to decide if HDCP check current HDCP version Application to display a Warning 5 HDCP encryption message HDCP Unauthorized, encryption to be used >= expected HDCP version Content Disabled.' Error. -
Chrome Os Download Iso 32 Bit Is Chrome Os Free
chrome os download iso 32 bit Is Chrome Os Free. What are Chromebooks. Chrome OS is the operating system that powers every Chromebook. Do more with apps. Chromebooks have access to a vast library of Google-approved apps. Google's Chrome OS is built on an open-source project named Chromium OS. Google doesn't offer builds of Chromium OS you can install yourself, but Neverware is a company that takes this open-source code and creates Neverware CloudReady. Chrome OS is made for Chromebooks that are designed to be lightweight and simple. Google does all of the updates. It's one of the simplest operating systems you can get. Chromium OS is an unofficial open-source version of Chrome OS, and it can work with all devices including Mac, Linux, and Windows. Neverware's CloudReady operating system enables schools and organizations to turn the computers they already own into Chrome devices and manage them alongside. Summary : Though the chrome OS is designed by Google for PC, it is not only available on desktop; actually, you can run the Google chrome OS in other ways, such as from a USB drive. The following content will tell you how to run the OS from external drive and how to distinguish if this OS is right for you. As an operating system designed by Google, the Chrome OS is produced on the basis of Linux kernel. The Google Chrome web browser is used as the main user interface in Chrome OS. Announced in July 2009, the Google Chrome OS is mainly used to support and run web applications. -
Implantación De Linux Sobre Microcontroladores
Embedded Linux system development Embedded Linux system development DSI Embedded Linux Free Electrons Developers © Copyright 2004-2018, Free Electrons. Creative Commons BY-SA 3.0 license. Latest update: March 14, 2018. Document updates and sources: http://free-electrons.com/doc/training/embedded-linux Corrections, suggestions, contributions and translations are welcome! DSI - FCEIA http://dsi.fceia.unr.edu.ar 1/263 Derechos de copia © Copyright 2018, Luciano Diamand Licencia: Creative Commons Attribution - Share Alike 3.0 http://creativecommons.org/licenses/by-sa/3.0/legalcode Ud es libre de: I copiar, distribuir, mostrar y realizar el trabajo I hacer trabajos derivados I hacer uso comercial del trabajo Bajo las siguientes condiciones: I Atribuci´on. Debes darle el cr´editoal autor original. I Compartir por igual. Si altera, transforma o construye sobre este trabajo, usted puede distribuir el trabajo resultante solamente bajo una licencia id´enticaa ´esta. I Para cualquier reutilizaci´ono distribuci´on,debe dejar claro a otros los t´erminos de la licencia de este trabajo. I Se puede renunciar a cualquiera de estas condiciones si usted consigue el permiso del titular de los derechos de autor. El uso justo y otros derechos no se ven afectados por lo anterior. DSI - FCEIA http://dsi.fceia.unr.edu.ar 2/263 Hiperv´ınculosen el documento Hay muchos hiperv´ınculosen el documento I Hiperv´ıncluosregulares: http://kernel.org/ I Enlaces a la documentaci´ondel Kernel: Documentation/kmemcheck.txt I Enlaces a los archivos fuente y directorios del kernel: drivers/input include/linux/fb.h I Enlaces a declaraciones, definiciones e instancias de los simbolos del kernel (funciones, tipos, datos, estructuras): platform_get_irq() GFP_KERNEL struct file_operations DSI - FCEIA http://dsi.fceia.unr.edu.ar 3/263 Introducci´ona Linux Embebido Introducci´ona DSI Linux Embebido Embedded Linux Developers Free Electrons © Copyright 2004-2018, Free Electrons. -
Widevine DRM Architecture Overview
Widevine DRM Architecture Overview Table of Contents Contact Widevine 4 Related Documentation 4 Widevine DRM Architecture Overview 5 Architecture Components List 5 Architecture Component Relationships 5 Components Overview 6 Common Encryption 6 Encrypted Media Extensions 6 Media Source Extensions 7 Dynamic Adaptive Streaming over HTTP 7 Bandwidth: Dynamic Adaptive Streaming 7 Transport: Streaming over HTTP 9 HLS Streaming 9 Media Packaging 9 License Server 9 Video Players 9 Content Decryption Module 9 OEMCrypto Module 10 Widevine DRM Security Model 10 Security Levels Provided by Widevine DRM 12 Security Level Definitions. 12 Security Level 1 12 Security Level 2 13 Security Level 3 13 Security Level for Widevine Devices 13 Shaka Packager 14 Packaging Steps 14 Working with Shaka Packager 15 Downloading Shaka Packager 15 Building Shaka Packager 15 Shaka Packager Community 16 ISO BMFF 16 Shaka HTML5 Video Player 16 DASH, CENC, EME, MSE Standards 16 Google - Confidential Version 1.2: March 6, 2017 Page 2 of 28 Player Components 16 Widevine License Server 17 Shaka Player Library 17 Encrypted Media Extensions 17 Media Source Extensions 17 Content Decryption Module 17 Component Stack for Shaka Player 17 Chrome Components Needed by Shaka Player 18 App Development with Shaka Player 18 Working with Shaka Player 19 Downloading Shaka 19 Shaka Requirements 19 Shaka Community 19 Building Shaka 19 Pre-compiled Builds 20 Test Application 20 Android Player for Widevine DRM 21 Components for Android in Widevine DRM 21 Native Android Application 22 ExoPlayer -
SFO17-409 TSC OSS Toolchain Discussion David a Rusling Ryan S
SFO17-409 TSC OSS Toolchain Discussion David A Rusling Ryan S. Arnold, Maxim Kuvyrkov linaro Committee Confidential @ 2017 Overview ● Toolchain work in Linaro ○ GCC ■ ARM GNU funding to TCWG and the effect on Linaro TCWG's roadmap ■ Transition of GNU toolchain release to ARM in 2018 (august) ■ ARMv8.2 ■ SVE upstream progress ● GDB SVE enablement moving forward ○ LLVM ■ ARMv8.2 ■ LLVM growth roadmap ■ SVE upstream progress ○ ILP32 ■ ILP32 toolchain progress update ○ FDPIC Toolchain ● Discussion ○ Does this all fit together? ○ Is there anything that we’re missing? linaro Committee Confidential @ 2017 ENGINEERS AND DEVICES WORKING TOGETHER Key GNU Deliverables 1.TCWG-1232 Link Time Optimization tuning for AArch64 2.TCWG-64 Sign/Zero-Extension Elimination optimizations 3.TCWG-1233 Investigate scalability of libgomp on SPEC CPU2017 4.TCWG-1207 ILP32 Toolchain 5.TCWG-159 GDB Kernel Awareness 6.TCWG-1035 GDB target description rework for SVE enablement 7.TCWG-1160, TCWG-1161 OpenOCD AArch64 & GDB Remote debugging interoperability 8.TCWG-935 Automated regression testing of upstream branches 9.TCWG-1231 Automated benchmarking of upstream branches linaro Committee Confidential @ 2017 ENGINEERS AND DEVICES WORKING TOGETHER ARM funding of GNU work & Need for LLVM ● High volume of LLVM work needed to be done (see LLVM Growth Roadmap slides). Linaro Exec Mgmt was planning to propose TCWG transition to LLVM in the future. This initial proposal was shared with ARM. ● ARM expressed concern as there is still important GNU work Linaro can do especially on behalf of ARM enterprise workloads. ● ARM has decided to fund three existing (full-time equivalent) TCWG engineers to continue to focus on GNU for at least the next year. -
Is Android the New Embedded Linux?
Is Android the new Embedded Linux? AnDevCon 2013 Karim Yaghmour [email protected] 1 These slides are made available to you under a Creative Commons Share- Delivered and/or customized by Alike 3.0 license. The full terms of this license are here: https://creativecommons.org/licenses/by-sa/3.0/ Attribution requirements and misc., PLEASE READ: ● This slide must remain as-is in this specific location (slide #2), everything else you are free to change; including the logo :-) ● Use of figures in other documents must feature the below “Originals at” URL immediately under that figure and the below copyright notice where appropriate. ● You are free to fill in the “Delivered and/or customized by” space on the right as you see fit. ● You are FORBIDEN from using the default “About” slide as-is or any of its contents. rd ● You are FORBIDEN from using any content provided by 3 parties without the EXPLICIT consent from those parties. (C) Copyright 2013, Opersys inc. These slides created by: Karim Yaghmour Originals at: www.opersys.com/community/docs 2 About ● Author of: ● Introduced Linux Trace Toolkit in 1999 ● Originated Adeos and relayfs (kernel/relay.c) ● Training, Custom Dev, Consulting, ... 3 1. Why are we asking this question? ● Android is based on Linux ● Android is “embedded” ● Android is extremely popular ● Android enjoys good support from SoC vendors Mostly - The trends are there 4 1.1. Why did Embedded Linux rise? ● EETimes 2005 survey ... http://www.embedded.com/electronics-blogs/- include/4025539/Embedded-systems-survey-Operating- systems-up-for-grabs ● EETimes 2013 survey http://www.slideshare.net/MTKDMI/2013-embedded-market- study-final http://www.eetimes.com/electronics-news/4407897/Android-- FreeRTOS-top-EE-Times--2013-embedded-survey 5 1.2.