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Null mumbai-iot-workshop

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Null mumbai-iot-workshop

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Null mumbai-iot-workshop

  1. 1. Null Mumbai – IOT Workshop
  2. 2. About Us 1) Nitesh Malviya - • Security Consultant with Payatu Technologies, • Experience in Web Pentesting, VAPT and Mobile Appsec • An IOT enthusiast and learner
  3. 3. 2) Ganesh Naik • Consultant in Embedded Linux & Embedded Android Product Development at Levana Technologies • Author of
  4. 4. What is IoT ?? • The internet of things (IoT) is the network of physical devices, vehicles, buildings and other items—embedded with electronics, software, sensors, actuators, and network connectivity that enable these objects to collect and exchange data(Wikipedia) • Internet of things increases the connectedness of people and things on a scale that once was unimaginable.
  5. 5. Various Names, One Concept • M2M (Machine to Machine) • “Internet of Everything” (Cisco Systems) • “World Size Web” (Bruce Schneier) • “Skynet” (Terminator movie) Education – Partnership – Solutions Information Security Office of Budget and Finance
  6. 6. Where is IoT? Education – Partnership – Solutions Information Security Office of Budget and Finance It’s everywhere!
  7. 7. Education – Partnership – Solutions Information Security Office of Budget and Finance
  8. 8. Devices like… • Networking devices(routers, firewalls, IDS) • Set-top boxes • Medical devices(Health monitors) • Mobile phones. • Home security systems • Vehicles, in-flight entertainment. • Thermostats, metering systems, consumer electronics Displays
  9. 9. Components Of IOT • Physical Objects – Things • Sensors - Sense the physical environment • Actuators - Affect the physical environment • People - Humans can control the environment via mobile apps • Services - Cloud services • Platforms - Type of middleware used to connect IoT components to IOT. • Networks - IoT components are tied together by networks, using various wireless and wireline technologies
  10. 10. Common Processor Architectures • ARM (ARM7, ARM9, Cortex) • Intel ATOM • MIPS • Atmel AVR • Motorola 6800/68000 (68k) • Ambarella • Axis CRIS
  11. 11. Common Buses • Serial buses - SPI, I2C, 1-Wire, UART • PCI, PCIExpress • AMBA – SOC Chip
  12. 12. Common Communication Lines • Ethernet - RJ45 • CAN/FlexRay - BMW Cars • Bluetooth • WIFI • Infrared • Zigbee • Other radios (ISM-Band etc) • GPRS
  13. 13. Common Directly Addressable Memory • DRAM - Dynamic RAM • SRAM – Static RAM • ROM – READ ONLY MEMORY • Flash Memory
  14. 14. Common Operating Systems • Linux - Perhaps most favourite and most encoutered • VxWorks • Cisco IOS • Windows CE/NT • L4 • eCos • DOS • Symbian • JunOS • Ambarella
  15. 15. Common Bootloaders • Bootloader is a piece of code that runs before any operating system is running. • Bootloader are used to boot other operating systems Common Bootloaders – a. U-Boot b. Perhaps most favourite and most encoutered c. RedBoot d. BareBox e. Ubicom bootloader
  16. 16. Common Libraries and Dev Envs • busybox + uClibc - Perhaps most favourite and most encoutered • Buildroot • openembedded • crosstool • crossdev
  17. 17. Firmware Formats/Flavors • Ar • YAFFS • JFFS2 • SquashFS • CramFS • ROMFS • UbiFS • xFAT • NTFS • extNfs • iHEX • SREC/S19 • PJL • CPIO/Ar/Tar/GZip/BZip/LZxxx/RPM
  18. 18. IoT Protocol Stack/Communication Layer Management Layer (cloud, apps...) Communication Layer (network...) Sensing Layer (devices...)
  19. 19. Sensing Layer • Dont take it literally :) • Data collection from the physical world • And/Or operation for physical world • Sensors, monitors, camera, readers etc
  20. 20. Communication Layer • Information exchange between two layers • Provides a channel for data transmission/ communication - Wifi - Wired - Mobile Data - …
  21. 21. Management Layer • Making sense of the data • Data Processing • Storage • Presentation • Action
  22. 22. Functional Architecture
  23. 23. Common Protocols used in IoT devices • Protocol – Way 2 or more device/s can communicate with each other. • Ex – HTTP,FTP,SMTP,SNMP etc • For IOT can same be use?? • Protocols – MQTT, CoAP, XMPP, RESTful HTTP etc.
  24. 24. Common Protocols used in IoT devices
  25. 25. MQTT Protocol • MQTT was developed by Andy Stanford-Clark and Arlen Nipper in 1999 • Lightweight messaging protocol designed for sensors and devices with • Flaky network connectivity • Low computing power • Connections where bandwidth is at a premium • Uses a publish/subscribe architecture in contrast to HTTP with its request/response paradigm • Components - Publisher/Client, Broker and Subscriber.
  26. 26. MQTT Overview • Each client that wants to receive messages subscribes to a certain topic and the broker delivers all messages with the matching topic to the client. Therefore the clients don’t have to know each other, they only communicate over the topic
  27. 27. MQTT WORKFLOW • Central concept in MQTT to dispatch messages are Topics. • A topic is a simple string that can have more hierarchy levels, which are separated by a slash. Example - house/living-room/temperature • Client can subscribe to the exact topic or on the other hand use a wildcard (# or +) • The subscription to house/+/temperature would result in all message send to the previously mention topic house/living-room/temperature as well as any topic with an arbitrary value in the place of living room, example house/kitchen/temperature. • If you need to subscribe to more than one level, for example to the entire subtree, there is also a multilevel wildcard (#). It allows to subscribe to all underlying hierarchy levels. Example house/# is subscribing to all topics beginning with house
  28. 28. Protocol Use Case • Let us see the practical implementation of Protocol. • Raspberry Pi has a sensor and sends message to Broker • Broker has a list of subscriber and sends message to them • For practical Implementation - http://www.hivemq.com/blog/how-to- get-started-with-mqtt
  29. 29. Cloud Service Providers • Amazon • Microsoft • IBM • Google • Salesforce • Cisco • Oracle • SAP • Bosch…..
  30. 30. IOT Prototyping boards Prototyping boards are microcontrollers and microprocessors with chipsets to handle wireless connections. These development board with Cloud IoT platform enable a fast prototyping process. They are – a. Arduino Uno b. Arduino MKR1000 c. BeagleBone black d. Raspberry PI e. UDOO f. Particle Photon
  31. 31. What we will be using ?? Arduino Uno Raspberry PI
  32. 32. Arduino • What is Arduino – A development board which include programming interface, power circuit, basic I/O pins, buttons, LEDs etc as shown
  33. 33. What is the Arduino
  34. 34. Arduino IDE See: http://arduino.cc/en/Guide/Environment for more information
  35. 35. Getting Started • Check out: http://arduino.cc/en/Guide/HomePage 1. Download & install the Arduino environment (IDE) 2. Connect the board to your computer via the USB cable 3. If needed, install the drivers (not needed in lab) 4. Launch the Arduino IDE 5. Select your board 6. Select your serial port 7. Open the blink example 8. Upload the program
  36. 36. Try It: Connect the USB Cable
  37. 37. todbot.com/blog/bionicarduino
  38. 38. Add an External LED to pin 13 • File > Examples > Digital > Blink • LED’s have polarity – Negative indicated by flat side of the housing and a short leg www.instructables.com
  39. 39. A Little Bit About Programming • Code is case sensitive • Statements are commands and must end with a semi-colon • Comments follow a // or begin with /* and end with */ • loop and setup
  40. 40. Our First Program
  41. 41. Terminology
  42. 42. Digital I/0 pinMode(pin, mode) Sets pin to either INPUT or OUTPUT digitalRead(pin) Reads HIGH or LOW from a pin digitalWrite(pin, value) Writes HIGH or LOW to a pin Electronic stuff Output pins can provide 40 mA of current Writing HIGH to an input pin installs a 20KΩ pullup
  43. 43. Arduino Timing • delay(ms) – Pauses for a few milliseconds • delayMicroseconds(us) – Pauses for a few microseconds • More commands: arduino.cc/en/Reference/HomePage
  44. 44. Good References www.arduino.cc www.ladyada.net/learn/arduino www.EarthshineElectronics.com
  45. 45. RaspberryPi
  46. 46. What is a Raspberry Pi? • A credit card sized PC • Plugs into a TV or monitor • Inexpensive(ish) ~$30-40 each • Capability: • Programming • Electronic Projects • Office • Play HD Videos
  47. 47. Kit Components • Essential: • Raspberry Pi board • Prepared Operating System SD Card • USB keyboard • Display (with HDMI, DVI, or Composite input) • Power Supply • Highly suggested extras include: • USB mouse • Internet connectivity - LAN cable • Powered USB Hub • Case
  48. 48. Programming Languages • The Raspberry Pi Foundation recommends Python • Any language which will compile for ARMv6 can be used • Installed by default on the Raspberry Pi: • C • C++ • Java • Scratch • Ruby • Python
  49. 49. Setup
  50. 50. Power 5v micro USB connector (Similar to the one on a lot of mobile phones!)
  51. 51. 3.5mm Audio Standard headphone socket RCA Video (works with most older TVs) HDMI Audio & Video (works with modern TVs and DVI monitors) A/V (Audio/Video)
  52. 52. GPIO (General Purpose Input & Output) 10/100Mb Ethernet 2 x USB 2.0 ports Connectivity
  53. 53. DSI (display interface) SOC (System On a Chip) Broadcom BCM2835 700Mhz Internals LAN Controller CSI (camera interface)
  54. 54. SD Card Slot (supports SD cards up to 32GB) Storage
  55. 55. DEMO TIME – LIVE PROJECTS
  56. 56.  THANK YOU 

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