INTERNET OF THINGS : Security Mechanism Overviews: -Traditional VS Lightweight -Security -Security Layers WHAT IS IOT ? It describes the network of physical objects —“things”— that are embedded with sensors, software, and other technologies for the purpose of connecting and exchanging data with other devices and systems over the internet.

1. INTERNET
OF
THINGS
SNEHA S K
Msc CS
Bishop Heber College, Trichy

2. KEY TOPICS DISCUSSED IN
THIS PRESENTATION
• Security Mechanism Overviews
• Traditional VS Lightweight Security
• Security Layers

3. WHAT IS IOT ?
It describes the network of
physical objects —“things”—
that are embedded with sensors,
software, and other technologies
for the purpose of connecting and
exchanging data with other
devices and systems over the
internet.

4. 1
2
3
4
5
Security Properties
Confidentiality Integrit
y
Authenticity
Authorization
Availability

5. 1
2
3
4
Security Mechanism
Cryptography Digital
Certificates
Public key
infrastructur
e
Digital
Signature

6. Traditional
Security
Lightweight
Security

7. IOT Stack Figure :

8. PHYSICAL LAYER :
Hardware
Software
Networks
Data
enterprise,
agency or institution
fire
flood
natural disasters
burglar
theft
terrorism
Protects From

9. LINK LAYER :
MAC Medium Access Control(MAC)
Manages the coordination among different
IOT devices during data transmission.

10. NETWORK LAYER :
Internet Protocol
Internet Protocol Security
Host Identity Protocol
IP/IPSec/HIP

11. TRANSPORT LAYER :
IOT INTERNET
DTLS uses UDP TLS uses TCP
Datagram Transport
Layer Security
Transport
Layer Security

12. APPLICATION LAYER :
IOT INTERNET
Constrained
Application Protocol
Hyper Text
Transfer
Protocol