Revenue Guard · The Cryptographic Principle Behind Blinded Verification

Prove the truth.
Reveal nothing.

This is a real, live zero-knowledge proof running in your browser — an educational demonstration of the cryptographic idea that inspires Revenue Guard's blinded-verification approach: proving a fact is true while revealing nothing else. Watch a prover convince a verifier they know a secret, without ever revealing it. Every number below is computed for real with 64-bit modular arithmetic. Scheme: Schnorr proof of knowledge of a discrete logarithm — illustrative, not the production billing mechanism.

1 Public Parameters
We generate a cryptographic group everyone agrees on: a safe prime p = 2q + 1 and a generator g of the prime-order subgroup. These are public — no secrets yet.
2 The Secret & The Public Claim
The prover picks a secret x and publishes y = gx mod p. Anyone can see y. Recovering x from it is the discrete-logarithm problem — computationally infeasible. The prover's goal: prove they know x without revealing it.
3 The Interactive Proof
Three messages: the prover commits, the verifier challenges, the prover responds. Run it step by step.
4 The Two Guarantees
A zero-knowledge proof must be sound (a liar gets caught) and zero-knowledge (an honest proof leaks nothing). Test both.
🛡️ Soundness (catch a cheat)
🕶️ Zero-Knowledge (leaks nothing)
⚡ Non-Interactive (Fiat–Shamir)
An impostor who doesn't know x can't produce a valid s. We tamper with the response by one unit and re-run the verifier's check.
How this connects to Revenue Guard. The production system protects you through zero-trust architecture — the engine runs inside your firewall and your data never leaves — and bills through a keyed cryptographic commitment (a "blind signal": a fingerprint of each finding paired with its dollar value), so we can verify what was recovered without ever seeing what it was attached to. The interactive proof above illustrates the same guiding principle these techniques share — proving something is true while revealing nothing else. It is an educational illustration of the cryptographic family, not a claim that the billing relay runs Schnorr proofs. Full implementation details are in our security technical brief.