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Every time we seek a service online, we are required to identify ourselves as legitimate users. To demonstrate that a user is a legitimate user, one must register for that service using an email address and password or another social login method, which maintains the user's Web3 login information on the server of that corporation.                   

It implies that our personal information is kept in a centralized area on Web2.0 that hosts such servers, making user data privacy a top concern.

Additionally, online users are increasingly reluctant to register with their email addresses and passwords. Facebook, Google, or GitHub one-click social login functions are much more desirable. However, it comes with a trade-off.   

Pros Of Social Media Login Integration

No more form-filling

No need to recall another username/password

Instead of taking minutes, it takes seconds

Cons Of Social Media Login Integration

Since the user’s data is loaded from external providers, this extends a huge privacy problem on how providers utilize all this personal data. For example, at the time of writing, Facebook is encountering data privacy issues.       

Contrarily, Blockchain or Web3.0 gives us decentralized access, meaning that no one has access to any of the user's personal information, reducing the risk to user privacy and empowering individuals to be the owners of their own information.    

Public key encryption techniques are utilized to authenticate users over Blockchain wallets like MetaMask, making it a safe and secure platform for accessing services over the internet.

Let's start with executing the Web3 login using NodeJS & ReactJS with MetaMask.

User Authentication System Working In Web3 Using MetaMask

The idea behind a web3-based user authentication system that utilizes MetaMask is as follows:

The backend generates a JSON Web Token (JWT) and provides it to the frontend upon successful validation.

We will now create an authentication system that will allow a user to log in using MetaMask. We will leverage the private key management capabilities that MetaMask reveals to give way for a user to confirm they own that specific address and have authorization to login as that user. Their public Ethereum address will be used as a means of identification.   

The technology stack we are utilizing is:   

Frontend – React.js

Backend – Node.js, Express.js & PostgreSQL

MetaMask Wallet

By utilizing these technologies, you can easily perform Web3 login; all you need to do is focus on following the steps, as one error can hamper your effort.

Blockchain technology is a decentralized digital ledger created with blocks that form data across a peer-to-peer (P2P) network. Data stored on this ledger is virtually impossible to erase, alter, or hack. In fact, many people have been motivated to create Blockchain-based projects for their businesses because of this special quality of technology.

However, it would be excellent if you first comprehended how the Blockchain functions before considering how it might be applied to your organization. Let's analyze Blockchain layers to properly utilize blockchain technology.     

Blockchain Layered Architecture Structure

To understand how Blockchain technology works, let's examine the different layers -

Infrastructure Or Hardware Layer

The network's initial layer, which comprises network and data servers, is Blockchain. It is made up of data servers that safely store Blockchain's data. Blockchain uses a peer-to-peer (P2P) network architecture in which every node in a network is connected to every other node.

However, this network is decentralized because it is dispersed worldwide. It is quick and simple to share data, thanks to this P2P design.

Data Layer

It is in charge of storing and arranging data on the Blockchain and is the second layer of the technology. The transactions are organized using a linked list of blocks, and after a predetermined number of transactions have been verified by nodes, the data is combined into a block. This block is added as a new block to the Blockchain's linked list and linked to the preceding block. It is referred to as the genesis block if it is the first block in the list because there cannot be a link to the block before it.

Each block in the Blockchain contains the Merkle tree's root hash and the hashes of the preceding blocks, a timestamp, a nonce, and the block version number. Each block's inclusion of this information ensures Blockchain's security, integrity, and irrefutability.

Network Layer

It is sometimes referred to as the inter-node communication layer or the P2P layer. Nodes execute the transaction on the Blockchain. P2P enables easy and speedy inter-node communication by assisting nodes in a network in detecting other nodes.

Additionally, it enables several nodes to transmit transactions in order to reach a consensus regarding the transaction's validity. In the blockchain network, it takes care of block creation, node discovery, and block adding.

Consensus Layer

The Consensus layer is one of the most important Blockchain layered architecture structures. The main duty that falls under this tier is transaction authentication. The entire system will malfunction if this layer cannot or does not correctly authenticate the transaction.

It executes the protocol to verify transactions based on complicated mathematical formulas that require a specific number of nodes to verify each transaction individually.

Application Layer

It is the highest layer of the Blockchain network stack where decentralized applications (dApps), shrewd agreements, and so on associate with the clients through scripts, APIs, UIs, and structures.

Clients can play out any activity at this layer, such as trading a digital currency or NFT, tracking transactions over the network, tracking the supply chain, securely voting, and so forth. Furthermore, the conventions in this layer are partitioned into application and execution layers.

Blockchain Protocols Different Layers

Layer 0

It is a base of the Blockchain ecosystem on which the rest layers are created and is often directed to as the Blockchain itself. It includes the network & all its elements (physical infrastructure & hardware) that work together to create the Blockchain function.

Layer 1

It includes a protocol or architecture that describes how the Blockchain network works. It carries out tasks like settling disputes, consensus mechanisms such as proof-of-stake or proof-of-work, protocols, & constraints.

Layer 2

This layer is also known by the name of the execution layer. The expansion in scalability and, thus, throughput was getting slowed in layer 1, which provided rise to layer 2. It assists in resolving the scalability concerns of Layer 1 to a certain point by summing the transactions off-chain.

Layer 3

This is the user interface or application layer where the users interact with the Blockchain utilizing dApps. It hosts dApps & other protocols that allow users to employ other applications over Blockchain. Moreover, it strives to deliver ease to the user, allowing intra & inter-chain operability.

Ending Words

From setting up of network & servers in the infrastructure layer to allowing the users to interact with the dApps in the Application layer, all the Blockchain layers work together to form a protected, decentralized, trustworthy network. Comprehending all the layers of Blockchain can assist in understanding its core functioning and constructing better dApps.  

Web3.0 Helping Businesses Attain Competitive Benefits  

There are opportunities for businesses to expand with every new version of the Web. Web 3.0, the most recent and popular stage in this evolution, offers many benefits to organizations that will eventually aid in their growth.   

Additionally, Web 3 is currently a popular topic in every industrial area because of its potential to radically alter the entire digital world. However, so many people are unaware of Web 3.0, so let's get started by knowing about Web 3.             

What Is Web 3.0?

We can define Web 3 as a web application that provides users with outstanding experiences, including page navigation and content engagement across a variety of devices. Web 3.0 also makes it possible to communicate with clients via any platform, application, or gadget.    

Web 3.0, which decentralizes the internet to create a web and incorporates decentralized applications (Dapps), smart contracts, and Blockchain, changes how we access information.

Well, now let's move further and talk about Web 3.0 crucial features…

Web 3 Main Features  

Decentralization 

Data is immediately stored on the Blockchain and is accessible from any device in Web 3.0, which enables a decentralized paradigm. As I mentioned, it offers a decentralized network; therefore, nothing needs to be handled by a third-party service provider.             

Independent

Without the aid of middlemen or attorneys, businesses can unilaterally determine their terms and have Web 3.0 run them flawlessly and automatically. The solution created using Web 3.0 comprehends the transaction between the two parties with ease, thereby simplifying contract execution.     

Safe Data  

Web 3.0 data storage is more dependable for users who want to send their data safely because it cannot be removed or blocked by any third party. Therefore, businesses won't have to spend a lot of money preventing thieves from stealing information or content.      

Permissionless

In Web 3.0, everything will be automated by computers and other smart gadgets, eliminating the requirement for any service provider. As a result, businesses won't have to pay exorbitant rates for the services they require, which will cut their operating expenses and allow them to interact with clients and suppliers more effectively. 

Know How Web 3 Helping Business Grow

There are numerous benefits of using Web 3.0; some of them are stated below:  

Streamlined Business Processes

Businesses utilizing Web 3 can effortlessly maintain a transaction ledger for people or additional parties involved. In addition, it will allow businesses to create and handle the supply chain effortlessly. By employing this trending technology, firms can automate contracts with smart contracts.        

Highly Secure

Decentralized technology makes Web 3.0 more secure, and hackers can't hack it without permission because of its decentralized nature. Additionally, Blockchain data cannot be manipulated or changed; businesses don't have to worry about data theft.             

Enhanced Customer Relations

Utilizing Web 3, all transactions are recorded in a decentralized ledger, which makes companies directly accountable to their clients. Web 3.0 provide businesses with more transparency, which helps create trust & long-lasting relationships with their clients.  

No Third Party Is Needed

Utilizing blockchain, smart contracts, & dApps, you can instantly manage all things meaning no third-party service provider need to be involved. It will ultimately benefit businesses to save money & be more competitive. Moreover, Web 3.0 technology permits direct interaction between the firm owner or in-house and patrons.    

Cheaper & Fast Access To Data

For companies, the most valuable asset is data which they use for their service & product development process. With decentralized architecture and immutable systems, web 3.0 technology allows access to more patron data across multiple channels at a relatively low cost.

Conclusion

Web 3 is a modern technology; however, it's in the extension stages but to become fully grown. Blockchain, DAOs, and Metaverse are the two fundamental instances of web 3.0 use cases that are helping organizations in unlocking the factual potential of their business.        

Many industry verticals started adopting Web 3.0 to revamp their business. With time and growing technological evolution, the usage of Web 3 will rise to fix existing inefficiencies of the enterprise.