• Himanshu Sheoran Himanshu Sheoran

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Unverified evaluations in Dusk's PLONK

Dusk's privacy layer protects ~$60M of DUSK and hinges on one proof check. dusk-plonk's verifier never validated four of the prover's polynomial commitments, enough to mint DUSK from nothing and forge shielded spends the network confirmed as real.
Himanshu Sheoran, Valter Wik

Unfaithful claims: breaking 6 zkVMs

A zkVM verifier should be faithful to one thing above all else: its public claims. Yet we found six systems where this guarantee breaks. Learn how a subtle ordering bug lets an attacker bypass the cryptography entirely and prove mathematically impossible statements.
Himanshu Sheoran, Valter Wik