| 摘要 |
A semiconductor device judges the justice of electronic equipment with authentication information of the electronic equipment to which peculiar ID information is given. The semiconductor device includes: an equipment authentication section for judging the justice of a second electronic equipment with the authentication information obtained from the second electronic equipment which is different from a first electronic equipment having the semiconductor device concerned; and a first storage section for storing authentication progress information including a result of a judgment made by the equipment authentication section. The judgment made by the equipment authentication section includes a plurality of processing. The equipment authentication section records a completion of execution of each processing and a result of judgment as authentication progress information in the first storage section.
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