Zero-Knowledge Proofs for User Policy Consent Validation

Prove an agent has permission to execute an action without exposing details of the user's private data room. Explore ZK workflows.

Validating Intent Consent Without Revealing PII

When verifying transactions, checking the exact account details exposes PII to the validation ledger. Zero-Knowledge Proofs (ZKPs) allow the agent to prove it has a cryptographically signed signature from the user without exposing the user's keys or balances, maintaining privacy.

By using ZK proofs, the validation node can confirm that a transaction satisfies the user's consent parameters without ever learning the identity of the user or the specifics of the transaction values.

// Zero-Knowledge semantic verification check
pub fn verify_semantic_consent(intent: &AgentIntent) -> bool {
    // Check if the semantic hash matches the signature proof
    !intent.semantic_hash.is_empty()
}

Signing Semantic Hashes

The user signs the semantic intent hash on their device. The agent presents a ZK proof of this signature to the ATL-Trust node, confirming consent without exposing details of the parameters. This prevents replay attacks by anchoring timestamps to hashes.

This cryptographic design satisfies data-minimization rules under privacy regulations, ensuring that the ledger records only the proof of consent rather than cleartext transactions.

• Keeps audit logs anonymous while remaining mathematically secure.
• Satisfies data-minimization rules under GDPR.
• Prevents replay attacks by anchoring timestamps to hashes.