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- Privacy by Design and Default
- Non-linkable transactions: to prevent unintentional correlation of the holder
- Data minimization: to enable selective disclosure of only the data strictly required by a verifier
- Zero-knowledge proofs: privacy-preserving cryptography that supports selective disclosure
- Privacy-preserving protocols: to help ensure that a user is not tracked when presenting their credentials
- Transparency: to provide sufficient information to the holder about the processing of their personal data
- Purpose limitation: to collect personal data for specified, explicit and legitimate purposes and not process it in a manner incompatible with those purposes
- Auditable and informed consent (or delegation of consent)
- Security by Design and Default
- Secure transmission of verifiable credentials
- Secure storage of verifiable credentials (e.g, cloud- or edge-based wallet)
- Secure issuance of verifiable credentials
- Secure verification of verifiable credentials
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