nextcloud-server/apps/encryption/templates/settings-admin.php

<?php
/** @var array $_ */
/** @var \OCP\IL10N $l */
script('encryption', 'settings-admin');
script('core', 'multiselect');
style('encryption', 'settings-admin');
?>
<form id="ocDefaultEncryptionModule" class="sub-section">
	<h3><?php p($l->t("Default encryption module")); ?></h3>
	<?php if(!$_["initStatus"]): ?>
		<?php p($l->t("Encryption app is enabled but your keys are not initialized, please log-out and log-in again")); ?>
	<?php else: ?>
		<p id="encryptHomeStorageSetting">
			<input type="checkbox" class="checkbox" name="encrypt_home_storage" id="encryptHomeStorage"
				   value="1" <?php if ($_['encryptHomeStorage']) print_unescaped('checked="checked"'); ?> />
			<label for="encryptHomeStorage"><?php p($l->t('Encrypt the home storage'));?></label></br>
			<em><?php p( $l->t( "Enabling this option encrypts all files stored on the main storage, otherwise only files on external storage will be encrypted" ) ); ?></em>
		</p>
		<br />
		<?php if($_['masterKeyEnabled'] === false): ?>
			<p id="encryptionSetRecoveryKey">
				<?php $_["recoveryEnabled"] === '0' ?  p($l->t("Enable recovery key")) : p($l->t("Disable recovery key")); ?>
				<span class="msg"></span>
				<br/>
				<em>
					<?php p($l->t("The recovery key is an extra encryption key that is used to encrypt files. It allows recovery of a user's files if the user forgets his or her password.")) ?>
				</em>
				<br/>
				<input type="password"
					   name="encryptionRecoveryPassword"
					   id="encryptionRecoveryPassword"
					   placeholder="<?php p($l->t("Recovery key password")); ?>"/>
				<input type="password"
					   name="encryptionRecoveryPassword"
					   id="repeatEncryptionRecoveryPassword"
					   placeholder="<?php p($l->t("Repeat recovery key password")); ?>"/>
				<input type="button"
					   name="enableRecoveryKey"
					   id="enableRecoveryKey"
					   status="<?php p($_["recoveryEnabled"]) ?>"
					   value="<?php $_["recoveryEnabled"] === '0' ?  p($l->t("Enable recovery key")) : p($l->t("Disable recovery key")); ?>"/>
			</p>
			<br/><br/>

			<p name="changeRecoveryPasswordBlock" id="encryptionChangeRecoveryKey" <?php if($_['recoveryEnabled'] === '0') print_unescaped('class="hidden"');?>>
				<?php p($l->t("Change recovery key password:")); ?>
				<span class="msg"></span>
				<br/>
				<input
					type="password"
					name="changeRecoveryPassword"
					id="oldEncryptionRecoveryPassword"
					placeholder="<?php p($l->t("Old recovery key password")); ?>"/>
				<br />
				<input
					type="password"
					name="changeRecoveryPassword"
					id="newEncryptionRecoveryPassword"
					placeholder="<?php p($l->t("New recovery key password")); ?>"/>
				<input
					type="password"
					name="changeRecoveryPassword"
					id="repeatedNewEncryptionRecoveryPassword"
					placeholder="<?php p($l->t("Repeat new recovery key password")); ?>"/>

				<button
					type="button"
					name="submitChangeRecoveryKey">
					<?php p($l->t("Change Password")); ?>
				</button>
			</p>
		<?php endif; ?>
	<?php endif; ?>
</form>