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- W3095983164 endingPage "390" @default.
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- W3095983164 abstract "Blockchains are distributed systems, in which security is a critical factor for their success. However, despite their increasing popularity and adoption, there is a lack of standardized models that study blockchain-related security threats. To fill this gap, the main focus of our work is to systematize and extend the knowledge about the security and privacy aspects of blockchains and contribute to the standardization of this domain.We propose the security reference architecture (SRA) for blockchains, which adopts a stacked model (similar to the ISO/OSI) describing the nature and hierarchy of various security and privacy aspects. The SRA contains four layers: (1) the network layer, (2) the consensus layer, (3) the replicated state machine layer, and (4) the application layer. At each of these layers, we identify known security threats, their origin, and countermeasures, while we also analyze several cross-layer dependencies. Next, to enable better reasoning about security aspects of blockchains by the practitioners, we propose a blockchain-specific version of the threat-risk assessment standard ISO/IEC 15408 by embedding the stacked model into this standard. Finally, we provide designers of blockchain platforms and applications with a design methodology following the model of SRA and its hierarchy." @default.
- W3095983164 created "2020-11-09" @default.
- W3095983164 creator A5018068523 @default.
- W3095983164 creator A5018867102 @default.
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- W3095983164 creator A5054220744 @default.
- W3095983164 creator A5058805862 @default.
- W3095983164 creator A5086467824 @default.
- W3095983164 date "2021-01-01" @default.
- W3095983164 modified "2023-10-13" @default.
- W3095983164 title "The Security Reference Architecture for Blockchains: Toward a Standardized Model for Studying Vulnerabilities, Threats, and Defenses" @default.
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