This paper describes a simulation study on security attacks over Distributed Ledger Technologies (DLTs). We specifically focus on attacks at the underlying peer-to-peer layer of these systems, that is in charge of disseminating messages containing data and transaction to be spread among all participants. In particular, we consider the Sybil attack, according to which a malicious node creates many Sybils that drop messages coming from a specific attacked node, or even all messages from honest nodes. Our study shows that the selection of the specific dissemination protocol, as well as the amount of connections each peer has, have an influence on the resistance to this attack.

中文翻译：

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传播策略对分布式账本安全的影响

本文描述了对分布式账本技术 (DLT) 安全攻击的模拟研究。我们特别关注这些系统底层对等层的攻击，该层负责传播包含要在所有参与者之间传播的数据和交易的消息。特别地，我们考虑 Sybil 攻击，根据该攻击，恶意节点会创建许多 Sybil，这些 Sybil 会丢弃来自特定被攻击节点的消息，甚至是来自诚实节点的所有消息。我们的研究表明，特定传播协议的选择以及每个对等方的连接数量都会影响对这种攻击的抵抗力。