The reasonable pricing of big data is one of the most challenging problems in big data transaction

which needs to be solved urgently.This paper

based on Micali-Rabin's secure computing technology

presents a secure delegation auction scheme with the function of big data pricing.First

based on Micali-Rabin's random vector representation methods

we design an auction

as well as a verification algorithm with the property of the sealed bid.Second

the big data's integrity and non-repudiation of the reserve price are realized by Merkle tree and Bit commitment protocol respectively

especially in the pricing stage the use of a special multi-party security computing protocol to hide the reserve price of big data

whereby ensuring the fairness of the big data transaction.Finally

as the scheme's security and performance analysis indicate that it is particularly suitable for delegation auction in the context of the big data transaction.