Internet of Things

The given uses are supported by the OMA-DM specification. However, a device may

implement all of them or chose specific ones. OMA-DM is mainly designed by keeping small

footprint devices in mind. In such devices, storage and memory space might be limited.

Plus, they may also have bandwidth constraints for communication. If we speak in techni-

cal terms, then OMA-DM protocol mainly utilizes XML for the exchange of data. It is most

specifically defined by SyncML. The task of device management is conducted by establishing

communication between a server and the client. OMA-DM can support various data trans-

ports such as:

• Physically over a wired connection (ex: USB, RS-232) or wireless connection (CDMA,

GSM, Bluetooth, or IrDA)

• Transport layers applied over any kind of WAP (WSP), HTTP, or OBEX.

Semantic Protocols

JSON-LD

JSON-LD stands as JavaScript Object Notation-Linked Data. It works as a lightweight Linked

Data format that makes it easier for humans to read and write structured data. It is known

as a model data format for programming environments. JSON-LD is available for JavaScript,

Python, PHP, Ruby, Java, C#, Go, and Erlang/Elixr. Its main aim is to help information networks

to acquire links data. This allows the data to be organized in the traditional JSON concept.

The most important role of JSON-LD is to allow network information set to navigate out-

side the pair system that used to be conventional before linked data played the role. JSON-LD is

enabling these data networks to gather extra link data from the hyperlinks. JSON-LD improves

what users are capable of doing in the data collection process. It doesn’t enforce a lot of propri-

etary syntaxes or the developers into a specific format.

Search engine pioneer Google has said JSON-LD as a preferred method of adding struc-

tured data to webpages in order to style them much easier to parse for more precise search

engine results. It eectively provides many benefits of JSON, this includes the lightweight data

interchange format and linked data world. Linked data is a technological reach that supports

the World Wide Web.

Security Protocols

X.509

Today, we are witnessing exponential growth in Internet users. Everyone wants to be connected

to the Internet. However, this has also created the rise of cybercrimes. The big organizations are

in the dire need for secure communications. To resolve this issue, we need strong cryptographic

verification to connect computers.

X.509 is the answer to this problem. It is a digital certificate that is internationally

uses public key infrastructure for verifying whether the public key belongs to the user or

computer.

A public key is a value given by some chosen authorities as an encryption that can be com-

bined with a private key resultant from the public key. It could be used to eciently encrypt

digital signatures and messages.

Public Key Infrastructure (PKI) is a combination of software, hardware, policies, people,

and procedures that are needed to build, distribute, manage, store, use, and revoke digital

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