Codit: Collaborative Auditing for BaaS

Abstract

As Blockchain-as-a-Service (BaaS) has witnessed a growing interest in enterprises, many BaaS providers have emerged. However, current BaaS providers can pose a potential security threat in the context of a centralized service provider and clients that depend on the provider.

We present Codit, collaborative auditing for BaaS. Codit is a consensus framework used by clients for detecting faulty behaviors of malicious BaaS providers. Codit employs a prefix agreement that allows clients to reach consensus on a common prefix of a blockchain by sharing analysis results of blocks received from the provider.