Security

Description: The plot illustrates the number of peers whose Kademlia identifier matches each prefix for all prefixes of a given size, for a given network crawl. Since the density of keyspace regions follows a Poisson distribution, it is expected to observe some regions that are significantly more populated than others.

How to read the plot: The selected depth indicates the prefix size. There are 2^i distinct prefixes at depth i. The dropdown menu allows to navigate to previous versions of this plot.

What to look out for: The green dashed line represents the expected density per region, corresponding to the number of peers matching a prefix. A bar significantly exceeding the expected density suggests that a region of the keyspace might be under an eclipse attack, especially if the value is above the risk threshold (red dashed line).

Description: As previously mentioned, the keyspace population follows a Poisson distribution, which can make identifying outliers challenging. The plot below counts the number of regions for each population size and facilitates the identification and analysis of outliers. While it is normal for some regions to have populations above the average, the plot enables us to quantify these deviations.

How to read the plot: The green line represents the expected number of regions for each population size. Note that the Poisson distribution is more evident at greater depths (longer prefix size), while analyzing data at lower depths provides limited insights. It is recommended to read the plot for depths between 9 and 13. The date dropdown menu allows to navigate to previous versions of this plot.

What to look out for: If an isolated bar appears on the far right beyond the risk threshold (red dashed) line, it may indicate a potential eclipse attack, warranting further investigation.