Decentralized storage architectures are emerging as valid complementary solutions to cloud-based storage services. InterPlanetary File System (IPFS) is one of the most well-known distributed file storage protocols with wide adoption, good performance, and a variety of applications built over it. However, IPFS does not natively support data confidentiality and its decentralized nature limits the ability of data owners to maintain control on their resources and to force their deletion. We propose Mix-IPFS, an approach that allows data owners to maintain control on their resources uploaded to IPFS, guaranteeing their confidentiality and supporting secure deletion. Mix-IPFS is based on AONT encryption, which has the nice property of preventing decryption if the whole ciphertext is not available. Data owners can permanently delete a resource by making a small portion of its encrypted representation unavailable. Our solution uses a virtual file system to guarantee transparency to data owners (i.e., they can operate on plaintext resources). The experimental evaluation shows that the overhead of our approach is negligible (less than 2% for both upload and access operations).

Supporting Data Owner Control in IPFS Networks / M. Abbadini, M. Beretta, S. DE CAPITANI DI VIMERCATI, D. Facchinetti, S. Foresti, G. Oldani, S. Paraboschi, M. Rossi, P. Samarati (IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS). - In: ICC 2024 - IEEE International Conference on Communications / [a cura di] M. Valenti, D. Reed, M. Torres. - [s.l] : IEEE, 2024 Jun. - ISBN 978-1-7281-9054-9. - pp. 3298-3303 (( convegno International Conference on Communications tenutosi a Denver nel 2024 [10.1109/ICC51166.2024.10623119].

Supporting Data Owner Control in IPFS Networks

S. DE CAPITANI DI VIMERCATI;S. Foresti;P. Samarati
Ultimo
2024

Abstract

Decentralized storage architectures are emerging as valid complementary solutions to cloud-based storage services. InterPlanetary File System (IPFS) is one of the most well-known distributed file storage protocols with wide adoption, good performance, and a variety of applications built over it. However, IPFS does not natively support data confidentiality and its decentralized nature limits the ability of data owners to maintain control on their resources and to force their deletion. We propose Mix-IPFS, an approach that allows data owners to maintain control on their resources uploaded to IPFS, guaranteeing their confidentiality and supporting secure deletion. Mix-IPFS is based on AONT encryption, which has the nice property of preventing decryption if the whole ciphertext is not available. Data owners can permanently delete a resource by making a small portion of its encrypted representation unavailable. Our solution uses a virtual file system to guarantee transparency to data owners (i.e., they can operate on plaintext resources). The experimental evaluation shows that the overhead of our approach is negligible (less than 2% for both upload and access operations).
AONT; Encryption; InterPlanetary File System
Settore INFO-01/A - Informatica
   Green responsibLe privACy preservIng dAta operaTIONs
   GLACIATION
   European Commission
   Horizon Europe Framework Programme
   101070141

   Machine Learning-based, Networking and Computing Infrastructure Resource Management of 5G and beyond Intelligent Networks (MARSAL)
   MARSAL
   EUROPEAN COMMISSION
   H2020
   101017171

   POLAR: POLicy specificAtion and enfoRcement for privacy-enhanced data management
   POLAR
   MINISTERO DELL'UNIVERSITA' E DELLA RICERCA
   2022LA8XBH_001

   SEcurity and RIghts in the CyberSpace (SERICS)
   SERICS
   MINISTERO DELL'UNIVERSITA' E DELLA RICERCA
   codice identificativo PE00000014
giu-2024
IEEE
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1121819
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