Generate a proof of a campaign c for a user u is as follows: - ask authorized verifiers to generate commitment + generate random value + calculate commitment based on generated value and stored s value for c + return commitment and random value
- calculate total commitment
1/ All organizations.
- Safetest
- Slowest
- Unrelated advertiers and publisheres must validate the proof
- Use default endorsement policy
- Inconsistency of verifiers' random values.
2/ Only peers of c's advertier and publisher
- Use key-level endorsement policy
- Can improve performance
- Inconsistency of verifiers' random values.
3/ At least one orgnization
- Fastest