Patent ID: 8667278

Claim:
An apparatus that transmits data, the apparatus comprising: a memory to store first divided trust information which is one portion resulting from division, by a predetermined dividing method, of trust information generated by a transmission target apparatus that is a transmission target for the data, the trust information indicating a specific state of the transmission target, in advance of receiving a transmission request for the data; and a processor to execute a procedure, the procedure comprising: receiving the transmission request from the transmission target apparatus, second divided trust information which is the other portion resulting from the division of the trust information of the transmission target apparatus and verification information generated using information indicating a specific state of the transmission target apparatus, recovering the trust information using the first divided trust information stored in the memory and the second divided trust information that is received in the receiving, verifying trustworthiness of the transmission target apparatus using the trust information that is recovered in the recovering and the verification information that is received in the receiving and the trustworthiness is successful if both are matched, and transmitting the data indicated by the transmission request to the transmission target apparatus when the verification of the trustworthiness is successful.