PROBLEM TO BE SOLVED: To provide a technology which permits rewriting irrespective of a rewriting place as far as the rewriting is normal, and on the other hand, extremely prevents illegal rewriting which is performed by a rewriting tool.SOLUTION: Authentication information acquisition means (S500 to S506) of a memory management device which manages rewriting to a rewritable non-volatile memory which is possessed by an on-vehicle electronic control device acquires authentication information which at least includes a rewriting place and a rewriting date and time when the rewriting tool requires rewriting to the non-volatile memory. Inquiry means (S510) transmits the authentication information to an authentication center, and inquires of the authentication center whether or not registration information which is registered at the authentication center, and at least includes a scheduled place and a scheduled date and time at which the rewriting tool requires rewriting to the non-volatile memory, and the authentication information coincide with each other. Rewriting determination means (S512 to S516) decides whether or not to permit or prohibit the rewriting of the rewriting tool with respect to the non-volatile memory on the basis of an inquiry result which is received from the authentication center.SELECTED DRAWING: Figure 6
【課題】正規な書換えであれば書換え場所に関わらず書換えを許可する一方、書換えツールによる不正な書換えを極力防止する技術を提供する。【解決手段】車載の電子制御装置が備える書換え可能な不揮発性メモリに対する書換えを管理するメモリ管理装置の認証情報取得手段(S500〜S506)は、書換えツールが不揮発性メモリに対する書換えを要求するときの書換え場所と書換え日時とを少なくとも含む認証情報を取得する。問い合わせ手段(S510)は、認証情報を認証センタに送信し、認証センタに登録されている、書換えツールが不揮発性メモリに対する書換えを要求する予定場所と予定日時とを少なくとも含む登録情報と認証情報とが一致するか否かを認証センタに問い合わせる。書換え判定手段(S512〜S516)は、認証センタから受信する問い合わせ結果に基づいて、不揮発性メモリに対する書換えツールの書換えを許可するか禁止するかを決定する。【選択図】図6
MEMORY MANAGEMENT DEVICE, AUTHENTICATION CENTER AND AUTHENTICATION SYSTEM
メモリ管理装置、認証センタ、および認証システム
08.12.2016
Patent
Elektronische Ressource
Japanisch
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