MARTSIA: Safeguarding Data Confidentiality in Blockchain-Driven Process Execution

• URL: http://arxiv.org/abs/2407.10684v1
• Date: Mon, 15 Jul 2024 12:59:54 GMT
• Title: MARTSIA: Safeguarding Data Confidentiality in Blockchain-Driven Process Execution
• Authors: Michele Kryston, Edoardo Marangone, Claudio Di Ciccio, Daniele Friolo, Eugenio Nerio Nemmi, Mattia Samory, Michele Spina, Daniele Venturi, Ingo Weber,
• Abstract summary: Multi-Authority Approach to Transaction Systems for Interoperating Applications (MARTSIA) MARTSIA provides read-access control at the message-part level through user-defined policies and certifier-declared attributes. MARTSIA resorts to encrypted, Multi-Authority Attribute-Based Encryption and distributed hash-table data-stores.
• Score: 6.26635837045368
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Blockchain technology streamlines multi-party collaborations in decentralized settings, especially where trust is limited. While public blockchains enhance transparency and reliability, they conflict with confidentiality. To address this, we introduce Multi-Authority Approach to Transaction Systems for Interoperating Applications (MARTSIA). MARTSIA provides read-access control at the message-part level through user-defined policies and certifier-declared attributes, so that only authorized actors can interpret encrypted data while all blockchain nodes can verify its integrity. To this end, MARTSIA resorts to blockchain, Multi-Authority Attribute-Based Encryption and distributed hash-table data-stores.

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