zkDL
zkDL is a proof of personhood project that leverages Zero Knowledge proofs to preserve user privacy.
Project Description
zkDL relies on standardized digital driving licenses (mDLs) as the basis for personhood verification. This approach offers several advantages:
Privacy: By utilizing Zero Knowledge Proofs, zkDL can verify the authenticity of an mDL without revealing any personal information about the user. This means that the system can confirm someone is a unique individual without knowing who they are.
Trust: Digital driving licenses are issued by state authorities, lending a high degree of credibility and trustworthiness to the verification process.
Accessibility: Since the system is based on a widely recognized and increasingly available form of ID, it ensures broad accessibility and inclusivity.
Free to Use: Leveraging state-issued IDs means the system can be provided free of charge to users.
How it's Made
The backbone of the zkDL verification process is a Zero Knowledge circuit, written in Noir, and verified using Sindri. This circuit can take the digitally signed data from an mDL, verify its authenticity, and produce a nullifier that the smart contract uses to issue the NFT.
These NFTs can be minted by anyone holding a valid ZK proof signed by a trusted issuer. This mechanism allows for the creation of a digital token that represents a verified, unique individual without compromising their privacy.
