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Authentication Protocol for Cloud Databases Using Blockchain Mechanism.

Gaurav Deep1, Rajni Mohana2, Anand Nayyar3

  • 1Department of CSE & IT, Jaypee University of Information Technology, Solan 173234, India. deepgaurav48@gmail.com.

Sensors (Basel, Switzerland)
|October 17, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces a novel blockchain-based authentication system for cloud databases to prevent insider attacks. The system enhances security by making user credentials immutable and traceable, ensuring data integrity.

Keywords:
Blockchainaccess controlclaimscloud computingcloud databasesclusterhash valueinsider threatoutsider threat

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Area of Science:

  • Computer Science
  • Cybersecurity
  • Information Technology

Background:

  • Cloud computing offers flexibility but increases vulnerability to security threats, particularly insider attacks.
  • Employees with data management roles in cloud environments pose a risk due to their access privileges.
  • Existing authentication mechanisms are susceptible to manipulation by insiders, compromising user data and system reputation.

Purpose of the Study:

  • To propose a novel and secure authentication mechanism for cloud databases utilizing Blockchain technology.
  • To mitigate insider threats by enhancing the security and integrity of user authentication processes.
  • To ensure robust access control for cloud databases against unauthorized modifications.

Main Methods:

  • Implementation of a distributed ledger-based authentication scheme using Blockchain technology.
  • Development of a secure authentication mechanism employing individual IDs and digital signatures for both insider and outsider users.
  • Formal verification of the proposed mechanism's algorithm and theorems for applicability and correctness.

Main Results:

  • The proposed Blockchain-based authentication system effectively prevents insiders from altering user login credentials.
  • The distributed ledger ensures that insider activities are traceable and immutable, enhancing accountability.
  • Formal testing using the Scyther tool confirmed the mechanism's robustness against various attacks, including denial of service, impersonation, offline guessing, and replay attacks.

Conclusions:

  • The novel Blockchain-based authentication mechanism provides a secure and robust solution for cloud databases.
  • The system significantly enhances protection against insider threats by leveraging the inherent security features of Blockchain.
  • The proposed approach ensures data integrity and user access control, addressing critical security concerns in cloud environments.