| 摘要 |
A microcomputer according to the present invention includes a first non-volatile storage unit, a first input terminal configured to input first key data, a second storage unit configured to store second key data that is different from the first key data, a second input terminal configured to input an encrypted program, a decrypting unit configured to decrypt the encrypted program using the first and the second key data, and a central processing unit configured to control storing a decrypted program decrypted by the decrypting unit to the first storage unit.
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