How do I set up provenance and attestations for Open Policy Agent?

Setting up provenance and attestations for Open Policy Agent (OPA) involves implementing a process to verify the source and integrity of your policies. This can be achieved by automating the collection, signing, and validation of policy data using tools that ensure that every change is recorded and verifiable.

Example Setup

// Sample PHP code for OPA policy management $policyPath = '/path/to/policies'; $signingKey = '/path/to/signingkey.pem'; $policyData = file_get_contents($policyPath . '/policy.rego'); // Generate the hash of the policy $hash = hash('sha256', $policyData); // Sign the hash to create an attestation $signature = shell_exec("openssl dgst -sha256 -sign $signingKey $policyPath/policy.rego"); // Output the hash and signature for provenance tracking echo json_encode([ 'hash' => $hash, 'signature' => base64_encode($signature) ]);

Open Policy Agent provenance attestations policy management security policies hash verification

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