1. A computing device for attesting itself to a communication partner, comprising: a communication port configured to receive an attestation request from the communication partner; and an application-specific integrated circuit (ASIC) configured to: receive the attestation request from the communication port, the attestation request including a nonce generated at the communication partner; generate a verification value, the verification value being a computation result of a predefined function taking the nonce as an initial value; capture data representing a state of computation of the ASIC when the verification value is being generated; and send the verification value and the captured data to the communication port to be transmitted back to the communication partner.