Paper 2020/817

Anonymous, Attribute Based, Decentralized, Secure, and Fair e-Donation

Osman Biçer and Alptekin Küpçü


E-cash and cryptocurrency schemes have been a focus of applied cryptography for a long time. However, we acknowledge the continuing need for a cryptographic protocol that provides global scale, decentralized, secure, and fair delivery of donations. Such a protocol would replace central trusted entities (e.g., charity organizations) and guarantee the privacy of the involved parties (i.e., donors and recipients of the donations). In this work, we target this online donation problem and propose a practical solution for it. First, we propose a novel decentralized e-donation framework, along with its operational components and security definitions. Our framework relies on a public ledger that can be realized via a distributed blockchain. Second, we instantiate our e-donation framework with a practical scheme employing privacy-preserving cryptocurrencies and attribute-based signatures. Third, we provide implementation results showing that our operations have feasible computation and communication costs. Finally, we prove the security of our e-donation scheme via formal reductions to the security of the underlying primitives.

Available format(s)
Cryptographic protocols
Publication info
Published elsewhere. Minor revision. PETS/PoPETS 2020
attribute based signatureanonymous credentialsaccess control systemsthreshold cryptography
Contact author(s)
obicer17 @ ku edu tr
akupcu @ ku edu tr
2020-10-16: revised
2020-07-06: received
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Short URL
Creative Commons Attribution


      author = {Osman Biçer and Alptekin Küpçü},
      title = {Anonymous, Attribute Based, Decentralized, Secure, and Fair e-Donation},
      howpublished = {Cryptology ePrint Archive, Paper 2020/817},
      year = {2020},
      note = {\url{}},
      url = {}
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