セキュリティ
TCG Opal

TCG Opal

Security Erase
Security Erase
AES-256
AES-256
ESD Safety
ESD Safety
EMI Safety
EMI Safety
TTrusted Computing Group - Opal Storage Specification

Trusted Computing Group - Opal Storage Specification

TTrusted Computing Group - Opal Storage Specification

 

TCG Opalは、産業用コンピューティング規格を開発・制定する国際非政府組織(NGO)であるTrusted Computing Group(TCG)によって制定されたストレージデバイスの安全規格です。TCG Opalに準拠したSSDは、以下の特徴を備えています。

 

  • 暗号化と復号化の両方がホスト側による処理を介さずにデバイス内で自動的に実行されます。鍵もデバイスに保存されており、AES-128またはAES-256の高度な暗号化規格が用いられます。
  • 起動前に認証が行われます。ユーザーはShadow MBRを入力してID確認を行う必要があり、認証されると、実際の起動が開始されます。

 

08-tcg-opal-01

 

  • ゾーニングと権限設定機能を備え、管理者が論理ブロックアドレス(LBA)を設け、異なるLBAに対して異なるアクセス権を設定することができ、対応する鍵を持っていれば指定のブロックに進入して許可された操作を実行することができます。
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