Distributed ledger based mass balancing via secret sharing

Abstract

A producer may supply amounts xof a good to a plurality of consumers Cin a series of transactions and be subject to a mass balancing verification protocol after every K transactions. A producer platform may compute K random shares (rthrough r) of a random value r, publish blinded amounts trepresenting x+rto a secure, distributed transaction ledger, and transmit an encrypted rto consumer Cusing an asymmetric cryptosystem. A consumer platform may receive and decrypt r(while the consumer Ci actually receives an amount {circumflex over (x)}of the good from the producer), compute {circumflex over (x)}+rand generate a fraud alert signal if it differs from the published t. The consumer platform may also transmit an encrypted rolling sum value to a next consumer C. A verifier platform may, after K transactions, execute the mass balance verification protocol to determine a total amount of the good that the producer had collectively supplied to the consumers C. The verifier platform may also generate a fraud alert signal when appropriate based on the total amount and a maximum allowed amount.