diff --git a/config/packages/doctrine.yaml b/config/packages/doctrine.yaml
index 44ea77f3..72dd35dc 100644
--- a/config/packages/doctrine.yaml
+++ b/config/packages/doctrine.yaml
@@ -13,6 +13,8 @@ doctrine:
                 class: App\Helpers\UTCDateTimeType
             big_decimal:
                 class: App\Helpers\BigDecimalType
+            permission_data:
+                class: App\Doctrine\Types\PermissionDataType
 
         schema_filter: ~^(?!internal)~
         # Only enable this when needed
diff --git a/src/Doctrine/Types/PermissionDataType.php b/src/Doctrine/Types/PermissionDataType.php
new file mode 100644
index 00000000..b33e4545
--- /dev/null
+++ b/src/Doctrine/Types/PermissionDataType.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Doctrine\Types;
+
+use App\Entity\UserSystem\PermissionData;
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Types\ConversionException;
+use Doctrine\DBAL\Types\JsonType;
+use JsonException;
+
+class PermissionDataType extends JsonType
+{
+    public function convertToPHPValue($value, AbstractPlatform $platform)
+    {
+        if ($value === null || $value === '') {
+            return null;
+        }
+
+        if (is_resource($value)) {
+            $value = stream_get_contents($value);
+        }
+
+        try {
+            return PermissionData::fromJSON($value);
+        } catch (JsonException $e) {
+            throw ConversionException::conversionFailed($value, $this->getName(), $e);
+        }
+    }
+
+    public function getName(): string
+    {
+        return 'permission_data';
+    }
+}
\ No newline at end of file
diff --git a/src/Entity/UserSystem/Group.php b/src/Entity/UserSystem/Group.php
index 94bdb8e1..ce22396e 100644
--- a/src/Entity/UserSystem/Group.php
+++ b/src/Entity/UserSystem/Group.php
@@ -95,11 +95,17 @@ class Group extends AbstractStructuralDBElement implements HasPermissionsInterfa
      */
     protected $attachments;
 
+    /**
+     * @var PermissionData
+     * @ORM\Column(type="permission_data", nullable=false, name="permissions")
+     */
+    protected PermissionData $permissions;
+
     /** @var PermissionsEmbed
      * @ORM\Embedded(class="PermissionsEmbed", columnPrefix="perms_")
      * @ValidPermission()
      */
-    protected $permissions;
+    protected $permissions_old;
 
     /** @var Collection<int, GroupParameter>
      * @ORM\OneToMany(targetEntity="App\Entity\Parameters\GroupParameter", mappedBy="element", cascade={"persist", "remove"}, orphanRemoval=true)
@@ -111,7 +117,8 @@ class Group extends AbstractStructuralDBElement implements HasPermissionsInterfa
     public function __construct()
     {
         parent::__construct();
-        $this->permissions = new PermissionsEmbed();
+        $this->permissions = new PermissionData();
+        $this->permissions_old = new PermissionsEmbed();
         $this->users = new ArrayCollection();
     }
 
@@ -137,8 +144,12 @@ class Group extends AbstractStructuralDBElement implements HasPermissionsInterfa
         return $this;
     }
 
-    public function getPermissions(): PermissionsEmbed
+    public function getPermissions(): PermissionData
     {
+        if (!isset($this->permissions)) {
+            $this->permissions = new PermissionData();
+        }
+
         return $this->permissions;
     }
 
diff --git a/src/Entity/UserSystem/PermissionData.php b/src/Entity/UserSystem/PermissionData.php
new file mode 100644
index 00000000..06afd3ac
--- /dev/null
+++ b/src/Entity/UserSystem/PermissionData.php
@@ -0,0 +1,116 @@
+<?php
+
+namespace App\Entity\UserSystem;
+
+final class PermissionData implements \JsonSerializable
+{
+    /**
+     * Permission values.
+     */
+    public const INHERIT = null;
+    public const ALLOW = true;
+    public const DISALLOW = false;
+
+    /**
+     * @var array This array contains the permission values for each permission
+     * This array contains the permission values for each permission, in the form of:
+     * permission => [
+     *     operation => value,
+     * ]
+     */
+    protected array $data = [];
+
+    /**
+     * Creates a new Permission Data Instance using the given data.
+     * By default, a empty array is used, meaning
+     */
+    public function __construct(array $data = [])
+    {
+        $this->data = $data;
+    }
+
+    /**
+     * Check if a permission value is set for the given permission and operation (meaning there value is not inherit).
+     * @param  string  $permission
+     * @param  string  $operation
+     * @return bool True if the permission value is set, false otherwise
+     */
+    public function isPermissionSet(string $permission, string $operation): bool
+    {
+        return isset($this->data[$permission][$operation]);
+    }
+
+    /**
+     * Returns the permission value for the given permission and operation.
+     * @param  string  $permission
+     * @param  string  $operation
+     * @return bool|null True means allow, false means disallow, null means inherit
+     */
+    public function getPermissionValue(string $permission, string $operation): ?bool
+    {
+        if ($this->isPermissionSet($permission, $operation)) {
+            return $this->data[$permission][$operation];
+        }
+
+        //If the value is not set explicitly, return null (meaning inherit)
+        return null;
+    }
+
+    /**
+     * Sets the permission value for the given permission and operation.
+     * @param  string  $permission
+     * @param  string  $operation
+     * @param  bool|null  $value
+     * @return $this
+     */
+    public function setPermissionValue(string $permission, string $operation, ?bool $value): self
+    {
+        if ($value === null) {
+            //If the value is null, unset the permission value (meaning implicit inherit)
+            unset($this->data[$permission][$operation]);
+        } else {
+            //Otherwise, set the pemission value
+            if(!isset($this->data[$permission])) {
+                $this->data[$permission] = [];
+            }
+            $this->data[$permission][$operation] = $value;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Creates a new Permission Data Instance using the given JSON encoded data
+     * @param  string  $json
+     * @return static
+     * @throws \JsonException
+     */
+    public static function fromJSON(string $json): self
+    {
+        $data = json_decode($json, true, 512, JSON_THROW_ON_ERROR);
+        return new self($data);
+    }
+
+    /**
+     * Returns an JSON encodable representation of this object.
+     * @return array|mixed
+     */
+    public function jsonSerialize()
+    {
+        $ret = [];
+
+        //Filter out all empty or null values
+        foreach ($this->data as $permission => $operations) {
+            $ret[$permission] = array_filter($operations, function ($value) {
+                return $value !== null;
+            });
+
+            //If the permission has no operations, unset it
+            if (empty($ret[$permission])) {
+                unset($ret[$permission]);
+            }
+        }
+
+        return $ret;
+    }
+}
\ No newline at end of file
diff --git a/src/Entity/UserSystem/User.php b/src/Entity/UserSystem/User.php
index b651d679..869bce89 100644
--- a/src/Entity/UserSystem/User.php
+++ b/src/Entity/UserSystem/User.php
@@ -265,11 +265,17 @@ class User extends AttachmentContainingDBElement implements UserInterface, HasPe
      */
     protected $currency;
 
+    /**
+     * @var PermissionData
+     * @ORM\Column(type="permission_data", nullable=false, name="permissions")
+     */
+    protected PermissionData $permissions;
+
     /** @var PermissionsEmbed
      * @ORM\Embedded(class="PermissionsEmbed", columnPrefix="perms_")
      * @ValidPermission()
      */
-    protected $permissions;
+    protected $permissions_old;
 
     /**
      * @var DateTime the time until the password reset token is valid
@@ -280,7 +286,7 @@ class User extends AttachmentContainingDBElement implements UserInterface, HasPe
     public function __construct()
     {
         parent::__construct();
-        $this->permissions = new PermissionsEmbed();
+        $this->permissions = new PermissionData();
         $this->u2fKeys = new ArrayCollection();
         $this->webauthn_keys = new ArrayCollection();
     }
@@ -427,8 +433,12 @@ class User extends AttachmentContainingDBElement implements UserInterface, HasPe
         return $this;
     }
 
-    public function getPermissions(): PermissionsEmbed
+    public function getPermissions(): PermissionData
     {
+        if (!isset($this->permissions)) {
+            $this->permissions = new PermissionData();
+        }
+
         return $this->permissions;
     }
 
diff --git a/src/Security/Interfaces/HasPermissionsInterface.php b/src/Security/Interfaces/HasPermissionsInterface.php
index 323eef3e..10b0a31c 100644
--- a/src/Security/Interfaces/HasPermissionsInterface.php
+++ b/src/Security/Interfaces/HasPermissionsInterface.php
@@ -42,9 +42,9 @@ declare(strict_types=1);
 
 namespace App\Security\Interfaces;
 
-use App\Entity\UserSystem\PermissionsEmbed;
+use App\Entity\UserSystem\PermissionData;
 
 interface HasPermissionsInterface
 {
-    public function getPermissions(): PermissionsEmbed;
+    public function getPermissions(): PermissionData;
 }
diff --git a/src/Services/PermissionResolver.php b/src/Services/PermissionResolver.php
index d6eedfb7..641d93f8 100644
--- a/src/Services/PermissionResolver.php
+++ b/src/Services/PermissionResolver.php
@@ -81,6 +81,7 @@ class PermissionResolver
      * Check if a user/group is allowed to do the specified operation for the permission.
      *
      * See permissions.yaml for valid permission operation combinations.
+     * This function does not check, if the permission is valid!
      *
      * @param HasPermissionsInterface $user       the user/group for which the operation should be checked
      * @param string                  $permission the name of the permission for which should be checked
@@ -92,18 +93,13 @@ class PermissionResolver
     public function dontInherit(HasPermissionsInterface $user, string $permission, string $operation): ?bool
     {
         //Get the permissions from the user
-        $perm_list = $user->getPermissions();
-
-        //Determine bit number using our configuration
-        $bit = $this->permission_structure['perms'][$permission]['operations'][$operation]['bit'];
-
-        return $perm_list->getPermissionValue($permission, $bit);
+        return $user->getPermissions()->getPermissionValue($permission, $operation);
     }
 
     /**
      * Checks if a user is allowed to do the specified operation for the permission.
-     * In contrast to dontInherit() it tries to resolve the inherit values, of the user, by going upwards in the
-     * hierachy (user -> group -> parent group -> so on). But even in this case it is possible, that the inherit value
+     * In contrast to dontInherit() it tries to resolve to inherit values, of the user, by going upwards in the
+     * hierarchy (user -> group -> parent group -> so on). But even in this case it is possible, that to inherit value
      * could be resolved, and this function returns null.
      *
      * In that case the voter should set it manually to false by using ?? false.
@@ -153,10 +149,12 @@ class PermissionResolver
         //Get the permissions from the user
         $perm_list = $user->getPermissions();
 
-        //Determine bit number using our configuration
-        $bit = $this->permission_structure['perms'][$permission]['operations'][$operation]['bit'];
+        //Check if the permission/operation combination is valid
+        if (! $this->isValidOperation($permission, $operation)) {
+            throw new InvalidArgumentException('The permission/operation combination is not valid!');
+        }
 
-        $perm_list->setPermissionValue($permission, $bit, $new_val);
+        $perm_list->setPermissionValue($permission, $operation, $new_val);
     }
 
     /**
diff --git a/tests/Entity/UserSystem/PermissionDataTest.php b/tests/Entity/UserSystem/PermissionDataTest.php
new file mode 100644
index 00000000..22f685b8
--- /dev/null
+++ b/tests/Entity/UserSystem/PermissionDataTest.php
@@ -0,0 +1,104 @@
+<?php
+
+namespace App\Tests\Entity\UserSystem;
+
+use App\Entity\UserSystem\PermissionData;
+use PHPUnit\Framework\TestCase;
+
+class PermissionDataTest extends TestCase
+{
+
+    public function testGetSetIs()
+    {
+        $perm_data = new PermissionData();
+
+        //Empty object should have all permissions set to inherit
+        $this->assertNull($perm_data->getPermissionValue('not_existing', 'not_existing'));
+        $this->assertFalse($perm_data->isPermissionSet('not_existing', 'not_existing'));
+
+        $this->assertNull($perm_data->getPermissionValue('p1', 'op1'));
+        $this->assertNull($perm_data->getPermissionValue('p1', 'op2'));
+        $this->assertNull($perm_data->getPermissionValue('p2', 'op1'));
+
+        //Set values
+        $perm_data->setPermissionValue('p1', 'op1', PermissionData::ALLOW);
+        $perm_data->setPermissionValue('p1', 'op2', PermissionData::DISALLOW);
+        $perm_data->setPermissionValue('p2', 'op1', PermissionData::ALLOW);
+
+        //Check that values were set
+        $this->assertTrue($perm_data->isPermissionSet('p1', 'op1'));
+        $this->assertTrue($perm_data->isPermissionSet('p1', 'op2'));
+        $this->assertTrue($perm_data->isPermissionSet('p2', 'op1'));
+
+        //Check that values are correct
+        $this->assertTrue($perm_data->getPermissionValue('p1', 'op1'));
+        $this->assertFalse($perm_data->getPermissionValue('p1', 'op2'));
+        $this->assertTrue($perm_data->getPermissionValue('p2', 'op1'));
+
+        //Set values to null
+        $perm_data->setPermissionValue('p1', 'op1', null);
+        $this->assertNull($perm_data->getPermissionValue('p1', 'op1'));
+        //Values should be unset now
+        $this->assertFalse($perm_data->isPermissionSet('p1', 'op1'));
+    }
+
+    public function testJSONSerialization()
+    {
+        $perm_data = new PermissionData();
+
+        $perm_data->setPermissionValue('perm1', 'op1', PermissionData::ALLOW);
+        $perm_data->setPermissionValue('perm1', 'op2', PermissionData::DISALLOW);
+        $perm_data->setPermissionValue('perm1', 'op3', PermissionData::ALLOW);
+
+        $perm_data->setPermissionValue('perm2', 'op1', PermissionData::ALLOW);
+        $perm_data->setPermissionValue('perm2', 'op2', PermissionData::DISALLOW);
+
+        //Ensure that JSON serialization works
+        $this->assertJsonStringEqualsJsonString(json_encode([
+            'perm1' => [
+                'op1' => true,
+                'op2' => false,
+                'op3' => true,
+            ],
+            'perm2' => [
+                'op1' => true,
+                'op2' => false,
+            ],
+        ], JSON_THROW_ON_ERROR), json_encode($perm_data, JSON_THROW_ON_ERROR));
+
+        //Set values to inherit to ensure they do not show up in the json
+        $perm_data->setPermissionValue('perm1', 'op3', null);
+        $perm_data->setPermissionValue('perm2', 'op1', null);
+        $perm_data->setPermissionValue('perm2', 'op2', null);
+
+        //Ensure that JSON serialization works
+        $this->assertJsonStringEqualsJsonString(json_encode([
+            'perm1' => [
+                'op1' => true,
+                'op2' => false,
+            ],
+        ], JSON_THROW_ON_ERROR), json_encode($perm_data, JSON_THROW_ON_ERROR));
+
+    }
+
+    public function testFromJSON()
+    {
+        $json = json_encode([
+            'perm1' => [
+                'op1' => true,
+                'op2' => false,
+                'op3' => true,
+            ],
+            'perm2' => [
+                'op1' => true,
+                'op2' => false,
+            ],
+        ], JSON_THROW_ON_ERROR);
+
+        $perm_data = PermissionData::fromJSON($json);
+
+        //Ensure that values were set correctly
+        $this->assertTrue($perm_data->getPermissionValue('perm1', 'op1'));
+        $this->assertFalse($perm_data->getPermissionValue('perm2', 'op2'));
+    }
+}
diff --git a/tests/Services/PermissionResolverTest.php b/tests/Services/PermissionResolverTest.php
index 1ca02b6d..cbb25624 100644
--- a/tests/Services/PermissionResolverTest.php
+++ b/tests/Services/PermissionResolverTest.php
@@ -43,6 +43,7 @@ declare(strict_types=1);
 namespace App\Tests\Services;
 
 use App\Entity\UserSystem\Group;
+use App\Entity\UserSystem\PermissionData;
 use App\Entity\UserSystem\PermissionsEmbed;
 use App\Entity\UserSystem\User;
 use App\Services\PermissionResolver;
@@ -69,42 +70,42 @@ class PermissionResolverTest extends WebTestCase
         $this->service = self::$container->get(PermissionResolver::class);
 
         //Set up a mocked user
-        $user_embed = new PermissionsEmbed();
-        $user_embed->setPermissionValue('parts', 0, true) //read
-            ->setPermissionValue('parts', 2, false) //edit
-            ->setPermissionValue('parts', 4, null) //create
-            ->setPermissionValue('parts', 30, null) //move
-            ->setPermissionValue('parts', 8, null); //delete
+        $user_perms = new PermissionData();
+        $user_perms->setPermissionValue('parts', 'read', true) //read
+            ->setPermissionValue('parts', 'edit', false) //edit
+            ->setPermissionValue('parts', 'create', null) //create
+            ->setPermissionValue('parts', 'move', null) //move
+            ->setPermissionValue('parts', 'delete', null); //delete
 
         $this->user = $this->createMock(User::class);
-        $this->user->method('getPermissions')->willReturn($user_embed);
+        $this->user->method('getPermissions')->willReturn($user_perms);
 
         $this->user_withoutGroup = $this->createMock(User::class);
-        $this->user_withoutGroup->method('getPermissions')->willReturn($user_embed);
+        $this->user_withoutGroup->method('getPermissions')->willReturn($user_perms);
         $this->user_withoutGroup->method('getGroup')->willReturn(null);
 
         //Set up a faked group
-        $group1_embed = new PermissionsEmbed();
-        $group1_embed->setPermissionValue('parts', 6, true)
-            ->setPermissionValue('parts', 8, false)
-            ->setPermissionValue('parts', 10, null)
-            ->setPermissionValue('parts', 0, false)
-            ->setPermissionValue('parts', 30, true)
-            ->setPermissionValue('parts', 2, true);
+        $group1_perms = new PermissionData();
+        $group1_perms
+            ->setPermissionValue('parts', 'delete', false)
+            ->setPermissionValue('parts', 'search', null)
+            ->setPermissionValue('parts', 'read', false)
+            ->setPermissionValue('parts', 'show_history', true)
+            ->setPermissionValue('parts', 'edit', true);
 
         $this->group = $this->createMock(Group::class);
-        $this->group->method('getPermissions')->willReturn($group1_embed);
+        $this->group->method('getPermissions')->willReturn($group1_perms);
 
         //Set this group for the user
         $this->user->method('getGroup')->willReturn($this->group);
 
         //parent group
-        $parent_group_embed = new PermissionsEmbed();
-        $parent_group_embed->setPermissionValue('parts', 12, true)
-            ->setPermissionValue('parts', 14, false)
-            ->setPermissionValue('parts', 16, null);
+        $parent_group_perms = new PermissionData();
+        $parent_group_perms->setPermissionValue('parts', 'all_parts', true)
+            ->setPermissionValue('parts', 'no_price_parts', false)
+            ->setPermissionValue('parts', 'obsolete_parts', null);
         $parent_group = $this->createMock(Group::class);
-        $parent_group->method('getPermissions')->willReturn($parent_group_embed);
+        $parent_group->method('getPermissions')->willReturn($parent_group_perms);
 
         $this->group->method('getParent')->willReturn($parent_group);
     }