source: vbox/trunk/doc/manual/en_US/man_VBoxManage-encryptvm.xml

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    manpage, user manual, usage: VBoxManage encryptvm
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<refentry id="vboxmanage-encryptvm" lang="en">
  <refentryinfo>
    <pubdate>$Date: 2023-04-21 21:59:02 +0000 (Fri, 21 Apr 2023) $</pubdate>
    <title>VBoxManage encryptvm</title>
  </refentryinfo>

  <refmeta>
    <refentrytitle>VBoxManage-encryptvm</refentrytitle>
    <manvolnum>1</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>VBoxManage-encryptvm</refname>
    <refpurpose>change encryption and passwords of the VM</refpurpose>
    <refclass>&product-name;</refclass>
  </refnamediv>

  <refsynopsisdiv>
    <cmdsynopsis id="synopsis-vboxmanage-encryptvm-setencryption">
    <!-- The 'id' is mandatory and must start with 'synopsis-'. -->
      <command>VBoxManage encryptvm</command>
      <group choice="req">
        <arg choice="plain"><replaceable>uuid</replaceable></arg>
        <arg choice="plain"><replaceable>vmname</replaceable></arg>
      </group>
      <arg choice="plain">setencryption</arg>
      <arg choice="plain">--old-password <replaceable>file</replaceable></arg>
      <arg choice="plain">--cipher <replaceable>cipher-identifier</replaceable></arg>
      <arg choice="plain">--new-password <replaceable>file</replaceable></arg>
      <arg choice="plain">--new-password-id <replaceable>password-identifier</replaceable></arg>
      <arg choice="plain">--force</arg>
    </cmdsynopsis>

    <cmdsynopsis id="synopsis-vboxmanage-encryptvm-checkpassword">
      <command>VBoxManage encryptvm</command>
      <group choice="req">
        <arg choice="plain"><replaceable>uuid</replaceable></arg>
        <arg choice="plain"><replaceable>vmname</replaceable></arg>
      </group>
      <arg choice="plain">checkpassword</arg>
      <arg choice="req"><replaceable>file</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis id="synopsis-vboxmanage-encryptvm-addpassword">
      <command>VBoxManage encryptvm</command>
      <group choice="req">
        <arg choice="plain"><replaceable>uuid</replaceable></arg>
        <arg choice="plain"><replaceable>vmname</replaceable></arg>
      </group>
      <arg choice="plain">addpassword</arg>
      <arg choice="plain">--password <replaceable>file</replaceable></arg>
      <arg choice="plain">--password-id <replaceable>password-identifier</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis id="synopsis-vboxmanage-encryptvm-removepassword">
      <command>VBoxManage encryptvm</command>
      <group choice="req">
        <arg choice="plain"><replaceable>uuid</replaceable></arg>
        <arg choice="plain"><replaceable>vmname</replaceable></arg>
      </group>
      <arg choice="plain">removepassword</arg>
      <arg choice="req"><replaceable>password-identifier</replaceable></arg>
    </cmdsynopsis>
  </refsynopsisdiv>

  <refsect1 id="vboxmanage-encryptvm-description">
    <title>Description</title>
    <para>
      The <command>VBoxManage encryptvm</command> command enables you to
      change the encryption or add and remove user passwords for the
      virtual machine (VM). The following sections describe the subcommands
      that you can use:
    </para>
    <refsect2 id="vboxmanage-encryptvm-setencryption">
      <title>Set encryption of the Virtual Machine</title>
      <remark role="help-copy-synopsis"/>
      <para>
        The <command>VBoxManage encryptvm
        <replaceable>vmname</replaceable> setencryption</command> command
        changes encryption of a VM.
      </para>
      <para>
        Use the <option>--old-password</option> to supply old encryption
        password. Either specify the absolute pathname of a password file
        on the host operating system, or <literal>-</literal> to prompt
        you for the old password.
      </para>
      <para>
        Use the <option>--cipher</option> option to specify the
        new cipher for encryption of the VM. Only <literal>AES-128</literal>
        and <literal>AES-256</literal> are supported. Appropriate mode
        GCM, CTR or XTS will be selected by VM depending on encrypting
        component.
      </para>
      <para>
        Use the <option>--new-password</option> option to specify the
        new password for encryption of the VM. Either specify the absolute
        pathname of a password file on the host operating system, or
        <literal>-</literal> to prompt you for the new password.
      </para>
      <para>
        Use the <option>--new-password-id</option> option to specify the
        new id for the password for encryption of the VM.
      </para>
      <para>
        Use the <option>--force</option> option to make the system
        to reencrypt the VM instead of simple changing the password.
      </para>
    </refsect2>
    <refsect2 id="vboxmanage-encryptvm-checkpassword">
      <title>Check the supplied password is correct</title>
      <remark role="help-copy-synopsis"/>
      <para>
        The <command>VBoxManage encryptvm
        <replaceable>vmname</replaceable> checkpassword</command> command
        checks the correctness of the supplied password.
      </para>
      <para>
        The password can be supplied from file. Specify the absolute
        pathname of a password file on the host operating system. Also,
        you can specify <literal>-</literal> to prompt you for the password.
      </para>
    </refsect2>
    <refsect2 id="vboxmanage-encryptvm-addpassword">
      <title>Add password for decrypting the Virtual Machine</title>
      <remark role="help-copy-synopsis"/>
      <para>
        The <command>VBoxManage encryptvm
        <replaceable>vmname</replaceable> addpassword</command> command
        adds a password for decrypting the VM.
      </para>
      <para>
        Use the <option>--password</option> to supply the encryption
        password. Either specify the absolute pathname of a password file
        on the host operating system, or <literal>-</literal> to prompt
        you for the password.
      </para>
      <para>
        Use the <option>--password-id</option> option to specify the
        id the password is supplied for.
      </para>
    </refsect2>
    <refsect2 id="vboxmanage-encryptvm-removepassword">
      <title>Remove password used for decrypting the Virtual Machine</title>
      <remark role="help-copy-synopsis"/>
      <para>
        The <command>VBoxManage encryptvm
        <replaceable>vmname</replaceable> removepassword</command> command
        removes a password used for decrypting the VM.
      </para>
      <para>
        Specify the password identifier for removing. The password becomes
        unknown and the VM can not be decrypted.
      </para>
    </refsect2>
  </refsect1>

  <refsect1 id="vboxmanage-encryptvm-examples">
    <title>Examples</title>
    <remark role="help-scope" condition="GLOBAL" />
    <para>
      The following command encrypts the <filename>ol7</filename> VM using
      AES-256 giving password via command prompt:
    </para>
<screen>$ VBoxManage encryptvm ol7 setencryption --cipher=AES-256 --new-password - --new-password-id vmid</screen>
  </refsect1>

  <refsect1 id="vboxmanage-encryptvm-see-also">
    <title>See Also</title>
    <para>
      <xref linkend="vboxmanage-createvm" />,
    </para>
  </refsect1>
</refentry>