diff --git a/src/opnsense/mvc/app/models/OPNsense/Base/FieldTypes/Base64Field.php b/src/opnsense/mvc/app/models/OPNsense/Base/FieldTypes/Base64Field.php
new file mode 100644
index 000000000..3b1b68074
--- /dev/null
+++ b/src/opnsense/mvc/app/models/OPNsense/Base/FieldTypes/Base64Field.php
@@ -0,0 +1,71 @@
+<?php
+
+/**
+ *    Copyright (C) 2020 Deciso B.V.
+ *
+ *    All rights reserved.
+ *
+ *    Redistribution and use in source and binary forms, with or without
+ *    modification, are permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice,
+ *       this list of conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *
+ *    THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ *    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ *    AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ *    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *    POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+namespace OPNsense\Base\FieldTypes;
+
+use OPNsense\Base\Validators\CallbackValidator;
+
+/**
+ * Class Base64Field
+ */
+class Base64Field extends TextField
+{
+    protected $internalValidationMessage = "invalid base64 encoded string";
+
+    /**
+     * @param string $value to validate
+     * @return array messages
+     */
+    private function validateBase64($value)
+    {
+        $messages = [];
+        if (base64_encode(base64_decode($value, true)) != str_replace("\n", "", $value)) {
+            $messages[] = $this->internalValidationMessage;
+        }
+        return $messages;
+    }
+
+    /**
+     * retrieve field validators for this field type
+     * @return array
+     */
+    public function getValidators()
+    {
+        $validators = parent::getValidators();
+        if ($this->internalValue != null) {
+            $validators[] = new CallbackValidator(["callback" => function ($data) {
+                return $this->validateBase64($data);
+            }
+            ]);
+        }
+        return $validators;
+    }
+
+}
diff --git a/src/opnsense/mvc/tests/app/models/OPNsense/Base/FieldTypes/Base64FieldTest.php b/src/opnsense/mvc/tests/app/models/OPNsense/Base/FieldTypes/Base64FieldTest.php
new file mode 100644
index 000000000..dcf39925d
--- /dev/null
+++ b/src/opnsense/mvc/tests/app/models/OPNsense/Base/FieldTypes/Base64FieldTest.php
@@ -0,0 +1,93 @@
+<?php
+
+/**
+ *    Copyright (C) 2020 Deciso B.V.
+ *
+ *    All rights reserved.
+ *
+ *    Redistribution and use in source and binary forms, with or without
+ *    modification, are permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice,
+ *       this list of conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *
+ *    THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ *    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ *    AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ *    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *    POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+namespace tests\OPNsense\Base\FieldTypes;
+
+// @CodingStandardsIgnoreStart
+require_once 'Field_Framework_TestCase.php';
+// @CodingStandardsIgnoreEnd
+
+use OPNsense\Base\FieldTypes\Base64Field;
+
+class Base64FieldTest extends Field_Framework_TestCase
+{
+    public function testCanBeCreated()
+    {
+        $this->assertInstanceOf('\OPNsense\Base\FieldTypes\Base64Field', new Base64Field());
+    }
+
+    public function testRequiredEmpty()
+    {
+        $this->expectException(\Phalcon\Validation\Exception::class);
+        $this->expectExceptionMessage("PresenceOf");
+        $field = new Base64Field();
+        $field->setRequired("Y");
+        $field->setValue("");
+        $field->eventPostLoading();
+        $this->validateThrow($field);
+    }
+
+    public function testRequiredNotEmpty()
+    {
+        $field = new Base64Field();
+        $field->setRequired("Y");
+        $field->setValue("T1BOc2Vuc2U=");
+        $field->eventPostLoading();
+        $this->assertEmpty($this->validate($field));
+    }
+
+    public function testValidValues()
+    {
+        $field = new Base64Field();
+        $field->eventPostLoading();
+        foreach (array("T1BOc2Vuc2U=", "RGVjaXNv", "RGVj\naXNv") as $value) {
+            $field->setValue($value);
+            $this->assertEmpty($this->validate($field));
+        }
+    }
+
+    public function testInValidValues()
+    {
+        $field = new Base64Field();
+        foreach (array("!2121", "x2x", "88766-1234") as $value) {
+            $field->setValue($value);
+            $this->assertNotEmpty($this->validate($field));
+        }
+    }
+
+    /**
+     * type is not a container
+     */
+    public function testIsContainer()
+    {
+        $field = new Base64Field();
+        $this->assertFalse($field->isContainer());
+    }
+}