In RPKI, what is a ROA used for?

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Multiple Choice

In RPKI, what is a ROA used for?

Explanation:
A ROA is a signed assertion that ties a specific IP prefix to an authorized origin ASN (and a maximum prefix length). In RPKI, this lets BGP systems perform Route Origin Validation: if a route is announced with an origin AS that matches the ROA and the prefix length falls within the allowed range, the route is considered valid. This mechanism helps prevent mis-originations and prefix hijacking by proving which ASN is permitted to originate which prefix. The ROA does not encrypt BGP updates, nor does it determine the actual path or measure uptime; its sole purpose is to authorize origin AS for a prefix and provide a boundary (via maxLength) for how specific those originated prefixes may be.

A ROA is a signed assertion that ties a specific IP prefix to an authorized origin ASN (and a maximum prefix length). In RPKI, this lets BGP systems perform Route Origin Validation: if a route is announced with an origin AS that matches the ROA and the prefix length falls within the allowed range, the route is considered valid. This mechanism helps prevent mis-originations and prefix hijacking by proving which ASN is permitted to originate which prefix. The ROA does not encrypt BGP updates, nor does it determine the actual path or measure uptime; its sole purpose is to authorize origin AS for a prefix and provide a boundary (via maxLength) for how specific those originated prefixes may be.

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