Authors
Ethan Cecchetti, Fan Zhang, Yan Ji, Ahmed Kosba, Ari Juels, Elaine Shi
Publication date
2017/10/30
Book
Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security
Pages
701-717
Description
Blockchains and more general distributed ledgers are becoming increasingly popular as efficient, reliable, and persistent records of data and transactions. Unfortunately, they ensure reliability and correctness by making all data public, raising confidentiality concerns that eliminate many potential uses.
In this paper we present Solidus, a protocol for confidential transactions on public blockchains, such as those required for asset transfers with on-chain settlement. Solidus operates in a framework based on real-world financial institutions: a modest number of banks each maintain a large number of user accounts. Within this framework, Solidus hides both transaction values and the transaction graph (i.e., the identities of transacting entities) while maintaining the public verifiability that makes blockchains so appealing. To achieve strong confidentiality of this kind, we introduce the concept of a Publicly-Verifiable Oblivious …
Total citations
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Scholar articles
E Cecchetti, F Zhang, Y Ji, A Kosba, A Juels, E Shi - Proceedings of the 2017 ACM SIGSAC Conference on …, 2017