Coinmonks
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Coinmonks

How Does Bob The Taxgather Find Out Total Profits, Without Revealing Any of Them?

The tax authority (Bob) wants to determine the total profit made by all the companies in its region (AliceCo, CharleyCo, DaveInc, EveCom, and FaithCo), but none of the companies wants to release their figures as it will give a commercial advantage to others. So how could we do this?

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Prof Bill Buchanan OBE

Prof Bill Buchanan OBE

7K Followers

Professor of Cryptography. Serial innovator. Believer in fairness, justice & freedom. Based in Edinburgh. Old World Breaker. New World Creator. Building trust.