noun
probe origin authentication
Computing term for verifying the source of a probe or request, often in network security contexts.
打診発生源認証は、ネットワーク上の不正なプローブを防ぐために使われる。
Probe origin authentication is used to prevent unauthorized probes on a network.
Compound of 打診 (probe, sounding) + 発生源 (origin, source) + 認証 (authentication). The exact derivation is uncertain; it is a technical term likely coined in computing contexts.