Privacy Enhanced DigiLocker using Ciphertext-Policy Attribute-Based Encryption
This paper tackles the problem of enhancing e-document privacy for users of the DigiLocker service, which is a critical component of India's digital infrastructure.
This paper addresses the lack of privacy for e-documents in India's DigiLocker service by proposing a scheme that implements Ciphertext-Policy Attribute-Based Encryption (CP-ABE). The proposed scheme aims to enhance data privacy within the existing DigiLocker framework.
Recently, Government of India has taken several initiatives to make India digitally strong such as to provide each resident a unique digital identity, referred to as Aadhaar, and to provide several online e-Governance services based on Aadhaar such as DigiLocker. DigiLocker is an online service which provides a shareable private storage space on public cloud to its subscribers. Although DigiLocker ensures traditional security such as data integrity and secure data access, privacy of e-documents are yet to addressed. Ciphertext-Policy Attribute-Based Encryption (CP-ABE) can improve data privacy but the right implementation of it has always been a challenge. This paper presents a scheme to implement privacy enhanced DigiLocker using CP-ABE.