SWE @PhonePe | GSOC '23 @AOSSIE | Ex SWE-Intern @Fidelity | Singapore India Hackathon 23 Winner | SIH 2022 Winner

github

codeforces

Kumar Harsh  • Peerlist

"Securely Access Your Assets with Unmatched Privacy: Experience Next-Level Protection with our ZKP Based 2FA Account Abstraction Wallet"

problem it solves : Currently, the main obstacle to bringing more people on board with Web3 is the uncertainty and fear of losing all assets due to the ease with which transfers can be made just by having knowledge of the private key. In the past, even highly skilled developers have made mistakes and accidentally exposed their private keys to the public, which has resulted in unfortunate consequences.

If there was a confirmation feature similar to 2FA in Web2 that allowed for added security without compromising anonymity, it would be highly beneficial. Getting inspired from the eth-infinitism account abstraction implementation and ZKotp we have tried to implement the same thing by confirming the initiation of a transaction only when a 2nd factor pin is entered which is generated by the google authenticator.

In the future, if someone's account is hacked by accident, they can be assured that our wallet will provide an added layer of security by requiring an OTP. If the OTP is not provided, the user will be notified of any suspicious transaction activity, allowing them to take appropriate action.

ZUPP-WALLET

This project is being developed for Flipkart Grid 4.0 2022 program. In this project, I have used Non-Fungible Tokens for converting physical warranties into digital, and various other frameworks to develop a user-friendly User Interface for our project.
-Converted ownership authenticity and product warranty cards into decaying NFTs.
-Customers can then use the digital NFT to verify the authenticity of their product, prove their ownership of their product, and transfer ownership of them upon resale.
-NFTs burns once the warranty is over.
-The brand/retailer can tie the digital NFT to its warranty program, allowing owners to track repairs and replacements to the original item.
-Created ERC721 standard NFT.
-Metamask for authentication.
-IPFS to store NFT

NFT-Based-Warranty-System

The front end is developed using Next Js, and styled using Material UI. The backend is developed using the Next Js API Routes. Send Grid is used for passwordless login and sending email notifications. Mongo DB is used as a NoSQL database, and AWS S3 is used for cloud storage. Ethereum-based smart contracts are used for handling funding campaigns.

Seeker-web-application

A group project for the placement cell of the college.

Provide admins to create new users, search for students based on eligibility criteria and if eligible they can inform students using SendGrid, admin can add a company and remove it, whenever he wants. 

Admin can search students based on their registration no, on basis of branch and save those data in excel sheet

Separate Student account where they can update their profile, and see their placement stats.

The homepage displays top placement and displays upcoming companies by fetching data from MongoDB

Used jwt token along with cookies to keep state persistent of a user and security, the password is
stored in hashed form using bycrypt and encrypt

Used ReactJS and bootstrap for the applicationʼs frontend and NodeJS with ExpressJS for implementing
the backend using MongoDB as a database.

Placement Cell website for college

A more efficient version of https://www.kickstarter.com/,fixed flaws that included protecting the investors from frauds.
Funds can only be used when the majority of investors are in favor of the spent request hence reducing the possibility of fraudulent behavior from the investee.
Used solidity to write the smart contract which is deployed on the rinkeby test network.
Used Semantic UI for application UI

Kickstarter

It selects a winner out of many participants who participate in Lottery. Works on a smart-contract written in solidity.

Lottery-Eth

Can be used to track crypto,their past performance based by analyzing cryptos graph
Used ReactJS and tailwind CSS for application UI.