Bitcoin is a decentralized cryptocurrency for e-payments.Bitcoin exchanges stand for the trading of customers’ bitcoins against major paramount currencies.The users’ bitcoins can be stored in a digital wallet offered by the Bitcoin exchange.Precisely, Bitcoin exchanges are equivalent to banks,providing security for the customer’s bitcoins in their absence.An exchange always need to be solvent interms of its assets and liabilities to meet its long term ﬁnancial obligations .Maxwell was the ﬁrst one who proposed a cryptographic based proof of liabilities .But the scheme is not secure enough to keep the user information conﬁdential.Later Dagher et al. proposed a privacy preserving proof of solvency for Bitcoin exchanges.But the scheme works in an interactive manner.This restricts the proof computation ofﬂine.This paper addresses the ﬁrst non interactive proof of assets using hybrid commitment schemes in the non programmable random oracle model.The non-interactive zero knowledge proof is deﬁned in the common reference string model.
Digital Object Identifier (DOI)
Mohan, Maya and K. Kavitha Devi, M.
"Privacy Preserving Non-interactive Proof of Assets for Bitcoin Exchanges,"
Applied Mathematics & Information Sciences: Vol. 11
, Article 50.
Available at: https://dc.naturalspublishing.com/amis/vol11/iss3/50