A chaincode method needs to allow only callers tha...

CHFD Practice Questions - Certified Hyperledger Fabric Developer (CHFD) Exam

Question Number 5

A chaincode method needs to allow only callers that hold the attribute `role=auditor` on their x509 certificate. Which approach is correct in Fabric v2.2 Node.js chaincode?

Read `process.env.AUDITOR_USER` and compare to a hard-coded list Use `ctx.clientIdentity.assertAttributeValue('role', 'auditor')` to enforce ABAC Pass the password in the transaction args and check it in chaincode Disable endorsement and trust the application code

✔ Correct Answer:

Use `ctx.clientIdentity.assertAttributeValue('role', 'auditor')` to enforce ABAC

CHFD Practice Questions - Certified Hyperledger Fabric Developer (CHFD) Exam

Question Number 5

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