UpHaaR: Blockchain-based charity donation scheme to handle financial irregularities

Abstract

Non-profit organization raise charity donation through different sources, and raised funds often require a clean traceability. Recently, fake charity fundraisers schemes have raised a social concern, and thus a trusted and auditable approach is necessary to manage charity organizations reputations. Blockchain-based charity (BBC) schemes are proposed with decentralization that ensure trust, transparency, and chronology among donators and beneficiaries. However, the schemes suffer from the high-end complexity of certificate generation. Motivated from this, in this paper, we propose a BBC scheme, UpHaaR, where donators, defined as charity persons (CP), and beneficiaries, defined as charity beneficiaries (CB), register in blockchain, managed for diverse fundraisers by charity organizations (CO). The scheme mitigates fake fundraisers, as the charity scheme data and fund allocations to CP are managed as ledger entries in the blockchain. To maintain the security and privacy of massive CP and CB users, the scheme proposes partial key generations through certificate-less cryptography (CLC), which mitigates expensive digital signing and eliminates certificate generation through key distribution centers. For signature aspects, the scheme proposes a lightweight certificate-less signcryption scheme (CSS) that eliminates collusion against insider attacks and reduces computational costs. The scheme is evaluated for security analysis using automated validation of internet security protocols and applications (AVISPA) tool, and informal attack analysis, and cost evaluations. The proposed results indicate the scheme’s viability against similar conventional approaches.