A Scalable Cross-Chain Access Control and Identity Authentication Scheme

Abstract

Cross-chain is an emerging blockchain technology which builds the bridge across homogeneous and heterogeneous blockchains. However, due to the differentiation of different blockchains and the lack of access control and identity authentication of cross-chain operation subjects, existing cross-chain technologies are struggling to accomplish the identity transformation of cross-chain subjects between different chains, and also pose great challenges in terms of the traceability and supervision of dangerous transactions. To address the above issues, this paper proposes a scalable cross-chain access control and identity authentication scheme, which can authenticate the legitimacy of blockchains in the cross-chain system and ensure that all cross-chain operations are carried out by verified users. Furthermore, it will record all cross-chain operations with the help of Superchain in order to regulate and trace illegal transactions. Our scheme is scalable and, at the same time, has low invasiveness to blockchains in the cross-chain system. We implement the scheme and accordingly conduct the evaluations, which prove its security, efficiency, and scalability.

IAM Identity Access Management—Importance in Maintaining Security Systems within Organizations

“…It has been noticed that it becomes easy for attackers to grant access to those accounts and hack users' credentials. 'SailPoint' cloud platform for maintaining identity security helps users to realize the accesses and identities of all the secure information [2]. This identity management solution helps organizations easily manage digital identities, employee permissions, data access, information security, and compliance.…”

“…It allows maintaining IAM standards to access the data that need to complete the job. Achieving identity authentication and access control in support of transaction circulation uses various types of changes which maintain low chain intrusion [2]. Moreover, with the assistance of the IAM scheme, it becomes easy to realize conversion based on cross-chain identity in the middle of recorded illegal transactions and different chains.…”