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Last change
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FE/Qt: bugref:10705. Merging r6149 from doc team's repo.
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| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="diskencryption">
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| 4 | <title>Encryption of Disk Images</title>
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| 5 |
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| 6 | <body>
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| 7 | <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> enables you to transparently encrypt the data stored in
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| 8 | hard disk images for the guest. It does not depend on a specific image format to be used. Images which have the
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| 9 | data encrypted are not portable between <ph conkeyref="vbox-conkeyref-phrases/product-name"/> and other
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| 10 | virtualization software. </p>
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| 11 | <p><ph conkeyref="vbox-conkeyref-phrases/product-name"/> uses the AES algorithm in XTS mode and supports 128-bit or
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| 12 | 256-bit data encryption keys (DEK). The DEK is stored encrypted in the medium properties and is decrypted during
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| 13 | VM startup by entering a password which was chosen when the image was encrypted. </p>
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| 14 | <p>Since the DEK is stored as part of the VM configuration file, it is important that it is kept safe. Losing the
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| 15 | DEK means that the data stored in the disk images is lost irrecoverably. Having complete and up-to-date backups of
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| 16 | all data related to the VM is the responsibility of the user. </p>
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| 17 | </body>
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| 18 | </topic>
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