论文标题
来自单个黑客的网络攻击下N节区块链的瞬时和限制行为
Instantaneous and limiting behavior of an n-node blockchain under cyber attacks from a single hacker
论文作者
论文摘要
我们研究了N节点区块链的瞬时和限制行为，该区块链正在不断监视公司的IT部门，但面临来自单个黑客的不间断网络攻击。只要没有存储在其上的数据，区块链就已经更改，删除或锁定了。一旦IT部门检测到黑客的攻击，它将立即重新设置区块链，从而使黑客徒劳无功。直到区块链功能失调之前，黑客将不会停止。对于黑客时间和检测时间的任意分布，我们得出了区块链的限制功能概率，瞬时功能概率和平均功能时间。我们还表明，所有这些数量都在增加节点数量的功能，证明了区块链具有越多的节点的直觉，黑客在网络攻击中取得成功的困难。
We investigate the instantaneous and limiting behavior of an n-node blockchain which is under continuous monitoring of the IT department of a company but faces non-stop cyber attacks from a single hacker. The blockchain is functional as far as no data stored on it has been changed, deleted, or locked. Once the IT department detects the attack from the hacker, it will immediately re-set the blockchain, rendering all previous efforts of the hacker in vain. The hacker will not stop until the blockchain is dysfunctional. For arbitrary distributions of the hacking times and detecting times, we derive the limiting functional probability, instantaneous functional probability, and mean functional time of the blockchain. We also show that all these quantities are increasing functions of the number of nodes, substantiating the intuition that the more nodes a blockchain has, the harder it is for a hacker to succeed in a cyber attack.
