LegacyLink

Inspiration

The Knives Out movie)

What it does

It securely saves users' sensitive information such as Passwords and Seed phrases in blockchain, which will never disappear and will be sent to specific addresses after your death.

How we built it

We're using Next.js for the front end and Solidity for the back end. As for a POC, we encrypt data with a static secret key on the server, but in an actual situation, we will use the Lit protocol to distribute key management for encryption.

Challenges we ran into

The biggest challenge was to figure out how to store the sensitive data in a blockchain. On one side, decentralization automatically solves many Web2 problems, but on the other, all the data is public... unless you can't understand and decrypt it by yourself.

Accomplishments that we're proud of

First of all, we had a lot of fun, generated a cool idea, created an awesome video, and solved many problems on the way.

What we learned

In general, lots of new things about Web3 and how it works.

What's next for LegacyLink

We might build a decent encryption and finalize user flows, share it with the community, and who knows... maybe another unicorn

Built With

• javascript
• mantle
• next.js
• node.js
• react
• solidity