Chia Transaction Signer

UI/UX

A better way to secure blockchain assets for enterprises and consumers.

Chia Signer phone screens for keys, a signature request, QR codes, and the Secure Enclave.

The challenge

Secure custody of digital assets is one of the biggest unsolved technology and UX problems in the blockchain space.

Keys off the paper

Seed phrases are often misplaced, lost, or stolen by attackers. This leads to billions of dollars worth of crypto assets each year being stolen or lost. This kind of asymmetric risk is a major obstacle to adoption for average users and enterprises.

At Chia Network Inc., we approached this problem by separating the keys needed to sign and submit a transaction from the creation of a transaction. Securing the keys inside the Secure Enclave of an Apple device instead of on a piece of paper or metal presents a much better interface for securing and managing keys.

Chia Signer is a mobile application specifically designed for the secure facilitation of blockchain transactions. The Chia blockchain enables the use of the Secure Enclave on Apple devices, making every iPhone a hardware wallet. With a much better interface, this application lets users sign, manage, and oversee blockchain transactions. It is designed to work with the Chia Vault and Chia Enterprise Wallet Service.

I created all of the UI/UX and branding elements for this project.

Chia Signer app icon, a split green mark on a dark rounded square.

Year: 2023
Timeframe: 90 days
Tools: Figma

I worked with Brian Collier on the brand architecture for products like this, using the Chia wordmark and making it work with the product branding system going forward.

Chia Signer screens listing hot, recovery, and cold keys beside a transaction history. — Users can see a list of keys and dive deeper into transactions with a key, as well as individual completed transactions.

Chia Signer scanning a QR code from an air-gapped machine to accept a spend request. — The most secure workflow allows users to accept spend requests from an air-gapped machine using QR codes.

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