Compact Credentials

Compact Credentials are used to represent claims of data that can be cryptographically proven as authentic while being compact enough to fit inside a QR code. They are ideal where high information assurance is required but not high identity assurance about the entity presenting the credential.

The following sections will provide you with further information on Compact Credentials:

  • Core capabilities: Learn more about the core capabilities enabled when using the Compact Credential profile.

  • Data format: Learn more about Concise Binary Object Representation (CBOR) and why we are using it for Compact Credentials.

  • Data model: Learn about the two different models (Compact and Compact Semantic Credentials) and how to choose the one most suitable for your use case.

  • Data structure: Learn more about how Compact and Compact Semantic Credentials are built, and how to use standard and custom claims.

  • Implementation considerations: Learn about key considerations that should be explored as part of implementing either a Compact or Compact Semantic Credential into your ecosystem.

Compact Credentials can be converted to a number of formats. This includes PDF documents that can be presented digitally or printed, as well as Apple and Google passes that can be stored in a digital wallet. Thus, Compact Credential reduce the digital divide by supporting offline or paper-based contexts alongside digital-first channels.

Holders present Compact Credentials by showing a verifier a QR code representing their credential. This can be scanned visually, or digitally transmitted by uploading an image or PDF. Verification can be online via API or entirely offline. This makes Compact Credentials ideal for rapid verification scenarios and/or when there is no reliable internet connectivity.

Compact Credentials are ‘bearer credentials’ where all the assurance is fully self-contained within the QR code, with no need for complex dynamic presentation capability from the holder. However, this means that the verifier cannot verify the identity of the person holding and presenting the credential.

Discount vouchers, physical asset tags and luxury goods verification cards are all examples where having authentic information through the supply chain increases the value of goods and services produced, without relying on the identity of the holder.

Therefore, Compact Credentials are ideal where high information assurance is required but not high identity assurance about the entity presenting the credential.