diff --git a/frontends/php/disc_prototypes.php b/frontends/php/disc_prototypes.php
index 917ee1cdc7..d5e7264dff 100644
--- a/frontends/php/disc_prototypes.php
+++ b/frontends/php/disc_prototypes.php
@@ -248,13 +248,14 @@ $fields = [
 										null
 									],
 	'http_authtype' =>				[T_ZBX_INT, O_OPT, null,
-										IN([HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM]),
+										IN([HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM, HTTPTEST_AUTH_DIGEST]),
 										null
 									],
 	'http_username' =>				[T_ZBX_STR, O_OPT, null,	null,
 										'(isset({add}) || isset({update})) && isset({http_authtype})'.
 											' && ({http_authtype} == '.HTTPTEST_AUTH_BASIC.
 												' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.
+												' || {http_authtype} == '.HTTPTEST_AUTH_DIGEST.
 											')',
 										_('Username')
 									],
@@ -262,6 +263,7 @@ $fields = [
 										'(isset({add}) || isset({update})) && isset({http_authtype})'.
 											' && ({http_authtype} == '.HTTPTEST_AUTH_BASIC.
 												' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.
+												' || {http_authtype} == '.HTTPTEST_AUTH_DIGEST.
 											')',
 										_('Password')
 									],
diff --git a/frontends/php/host_discovery.php b/frontends/php/host_discovery.php
index d86e8cc78e..e50d0c2c27 100644
--- a/frontends/php/host_discovery.php
+++ b/frontends/php/host_discovery.php
@@ -198,19 +198,21 @@ $fields = [
 									null
 								],
 	'http_authtype' =>			[T_ZBX_INT, O_OPT, null,
-									IN([HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM]),
+									IN([HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM, HTTPTEST_AUTH_DIGEST]),
 									null
 								],
 	'http_username' =>			[T_ZBX_STR, O_OPT, null,	null,
 									'(isset({add}) || isset({update})) && isset({http_authtype})'.
 										' && ({http_authtype} == '.HTTPTEST_AUTH_BASIC.
-											' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.')',
+											' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.
+											' || {http_authtype} == '.HTTPTEST_AUTH_DIGEST.')',
 									_('Username')
 								],
 	'http_password' =>			[T_ZBX_STR, O_OPT, null,	null,
 									'(isset({add}) || isset({update})) && isset({http_authtype})'.
 										' && ({http_authtype} == '.HTTPTEST_AUTH_BASIC.
-											' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.')',
+											' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.
+											' || {http_authtype} == '.HTTPTEST_AUTH_DIGEST.')',
 									_('Password')
 								],
 	'preprocessing' =>			[T_ZBX_STR, O_OPT, P_NO_TRIM,	null,	null],
diff --git a/frontends/php/httpconf.php b/frontends/php/httpconf.php
index cc466a1e74..bfdc116974 100644
--- a/frontends/php/httpconf.php
+++ b/frontends/php/httpconf.php
@@ -55,12 +55,14 @@ $fields = [
 	'http_user'       => [T_ZBX_STR, O_OPT, null,  null,
 		'(isset({add}) || isset({update})) && isset({authentication}) && ({authentication}=='.HTTPTEST_AUTH_BASIC.
 			' || {authentication}=='.HTTPTEST_AUTH_NTLM.
+			' || {authentication}=='.HTTPTEST_AUTH_DIGEST.
 		')',
 		_('User')
 	],
 	'http_password'		=> [T_ZBX_STR, O_OPT, P_NO_TRIM, null,
 		'(isset({add}) || isset({update})) && isset({authentication}) && ({authentication}=='.HTTPTEST_AUTH_BASIC.
 			' || {authentication}=='.HTTPTEST_AUTH_NTLM.
+			' || {authentication}=='.HTTPTEST_AUTH_DIGEST.
 		')',
 		_('Password')
 	],
diff --git a/frontends/php/include/classes/api/services/CHttpTest.php b/frontends/php/include/classes/api/services/CHttpTest.php
index cd126c2f1b..8507c6e139 100644
--- a/frontends/php/include/classes/api/services/CHttpTest.php
+++ b/frontends/php/include/classes/api/services/CHttpTest.php
@@ -286,7 +286,7 @@ class CHttpTest extends CApiService {
 				'value' =>				['type' => API_STRING_UTF8, 'flags' => API_REQUIRED | API_NOT_EMPTY, 'length' => DB::getFieldLength('httptest_field', 'value')]
 			]],
 			'status' =>				['type' => API_INT32, 'in' => implode(',', [HTTPTEST_STATUS_ACTIVE, HTTPTEST_STATUS_DISABLED])],
-			'authentication' =>		['type' => API_INT32, 'in' => implode(',', [HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM])],
+			'authentication' =>		['type' => API_INT32, 'in' => implode(',', [HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM, HTTPTEST_AUTH_DIGEST])],
 			'http_user' =>			['type' => API_STRING_UTF8, 'length' => DB::getFieldLength('httptest', 'http_user')],
 			'http_password' =>		['type' => API_STRING_UTF8, 'length' => DB::getFieldLength('httptest', 'http_password')],
 			'verify_peer' =>		['type' => API_INT32, 'in' => implode(',', [HTTPTEST_VERIFY_PEER_OFF, HTTPTEST_VERIFY_PEER_ON])],
@@ -380,7 +380,7 @@ class CHttpTest extends CApiService {
 				'value' =>				['type' => API_STRING_UTF8, 'flags' => API_REQUIRED | API_NOT_EMPTY, 'length' => DB::getFieldLength('httptest_field', 'value')]
 			]],
 			'status' =>				['type' => API_INT32, 'in' => implode(',', [HTTPTEST_STATUS_ACTIVE, HTTPTEST_STATUS_DISABLED])],
-			'authentication' =>		['type' => API_INT32, 'in' => implode(',', [HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM])],
+			'authentication' =>		['type' => API_INT32, 'in' => implode(',', [HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM, HTTPTEST_AUTH_DIGEST])],
 			'http_user' =>			['type' => API_STRING_UTF8, 'length' => DB::getFieldLength('httptest', 'http_user')],
 			'http_password' =>		['type' => API_STRING_UTF8, 'length' => DB::getFieldLength('httptest', 'http_password')],
 			'verify_peer' =>		['type' => API_INT32, 'in' => implode(',', [HTTPTEST_VERIFY_PEER_OFF, HTTPTEST_VERIFY_PEER_ON])],
diff --git a/frontends/php/include/classes/api/services/CItemGeneral.php b/frontends/php/include/classes/api/services/CItemGeneral.php
index f4fe0b006d..3d23755fdb 100644
--- a/frontends/php/include/classes/api/services/CItemGeneral.php
+++ b/frontends/php/include/classes/api/services/CItemGeneral.php
@@ -2144,14 +2144,14 @@ abstract class CItemGeneral extends CApiService {
 			],
 			'authtype' => [
 				'type' => API_INT32,
-				'in' => implode(',', [HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM])
+				'in' => implode(',', [HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM, HTTPTEST_AUTH_DIGEST])
 			]
 		];
 
 		$data = $item + $db_item;
 
 		if (array_key_exists('authtype', $data)
-				&& ($data['authtype'] == HTTPTEST_AUTH_BASIC || $data['authtype'] == HTTPTEST_AUTH_NTLM)) {
+				&& ($data['authtype'] == HTTPTEST_AUTH_BASIC || $data['authtype'] == HTTPTEST_AUTH_NTLM || $data['authtype'] == HTTPTEST_AUTH_DIGEST)) {
 			$rules += [
 				'username' => [ 'type' => API_STRING_UTF8, 'length' => DB::getFieldLength('items', 'username')],
 				'password' => [ 'type' => API_STRING_UTF8, 'length' => DB::getFieldLength('items', 'password')]
diff --git a/frontends/php/include/defines.inc.php b/frontends/php/include/defines.inc.php
index e4521f1cd3..60cd469453 100644
--- a/frontends/php/include/defines.inc.php
+++ b/frontends/php/include/defines.inc.php
@@ -873,6 +873,7 @@ define('ZBX_AGENT_OTHER', -1);
 define('HTTPTEST_AUTH_NONE',	0);
 define('HTTPTEST_AUTH_BASIC',	1);
 define('HTTPTEST_AUTH_NTLM',	2);
+define('HTTPTEST_AUTH_DIGEST',	3);
 
 define('HTTPTEST_STATUS_ACTIVE',	0);
 define('HTTPTEST_STATUS_DISABLED',	1);
diff --git a/frontends/php/include/httptest.inc.php b/frontends/php/include/httptest.inc.php
index 3a42587278..f324276839 100644
--- a/frontends/php/include/httptest.inc.php
+++ b/frontends/php/include/httptest.inc.php
@@ -26,7 +26,8 @@ function httptest_authentications($type = null) {
 	$authentication_types = [
 		HTTPTEST_AUTH_NONE => _('None'),
 		HTTPTEST_AUTH_BASIC => _('Basic'),
-		HTTPTEST_AUTH_NTLM => _('NTLM')
+		HTTPTEST_AUTH_NTLM => _('NTLM'),
+		HTTPTEST_AUTH_DIGEST => _('Digest')
 	];
 
 	if (is_null($type)) {
diff --git a/frontends/php/include/views/configuration.host.discovery.edit.php b/frontends/php/include/views/configuration.host.discovery.edit.php
index 2ac0ee0421..704b52abec 100644
--- a/frontends/php/include/views/configuration.host.discovery.edit.php
+++ b/frontends/php/include/views/configuration.host.discovery.edit.php
@@ -274,7 +274,8 @@ $form_list
 			(new CComboBox($data['limited'] ? '' : 'http_authtype', $data['http_authtype'], null, [
 				HTTPTEST_AUTH_NONE => _('None'),
 				HTTPTEST_AUTH_BASIC => _('Basic'),
-				HTTPTEST_AUTH_NTLM => _('NTLM')
+				HTTPTEST_AUTH_NTLM => _('NTLM'),
+				HTTPTEST_AUTH_DIGEST => _('Digest')
 			]))->setEnabled(!$data['limited'])
 		],
 		'http_authtype_row'
diff --git a/frontends/php/include/views/configuration.item.edit.php b/frontends/php/include/views/configuration.item.edit.php
index 90758d949c..8c2609c297 100644
--- a/frontends/php/include/views/configuration.item.edit.php
+++ b/frontends/php/include/views/configuration.item.edit.php
@@ -317,7 +317,8 @@ $form_list
 			(new CComboBox($readonly ? '' : 'http_authtype', $data['http_authtype'], null, [
 				HTTPTEST_AUTH_NONE => _('None'),
 				HTTPTEST_AUTH_BASIC => _('Basic'),
-				HTTPTEST_AUTH_NTLM => _('NTLM')
+				HTTPTEST_AUTH_NTLM => _('NTLM'),
+				HTTPTEST_AUTH_DIGEST => _('Digest')
 			]))->setEnabled(!$readonly)
 		],
 		'http_authtype_row'
diff --git a/frontends/php/include/views/configuration.item.prototype.edit.php b/frontends/php/include/views/configuration.item.prototype.edit.php
index 24b82da6e7..f0328fe274 100644
--- a/frontends/php/include/views/configuration.item.prototype.edit.php
+++ b/frontends/php/include/views/configuration.item.prototype.edit.php
@@ -302,7 +302,8 @@ $form_list
 			(new CComboBox($readonly ? '' : 'http_authtype', $data['http_authtype'], null, [
 				HTTPTEST_AUTH_NONE => _('None'),
 				HTTPTEST_AUTH_BASIC => _('Basic'),
-				HTTPTEST_AUTH_NTLM => _('NTLM')
+				HTTPTEST_AUTH_NTLM => _('NTLM'),
+				HTTPTEST_AUTH_DIGEST => _('Digest')
 			]))->setEnabled(!$readonly)
 		],
 		'http_authtype_row'
diff --git a/frontends/php/include/views/js/common.item.edit.js.php b/frontends/php/include/views/js/common.item.edit.js.php
index f9a4b6019e..8a1f4e9577 100644
--- a/frontends/php/include/views/js/common.item.edit.js.php
+++ b/frontends/php/include/views/js/common.item.edit.js.php
@@ -266,7 +266,8 @@ zbx_subarray_push($this->data['authTypeVisibility'], ITEM_AUTHTYPE_PUBLICKEY, 'r
 		if ($('#http_authtype').length) {
 			new CViewSwitcher('http_authtype', 'change', <?= zbx_jsvalue([
 				HTTPTEST_AUTH_BASIC => ['http_username_row', 'http_password_row'],
-				HTTPTEST_AUTH_NTLM => ['http_username_row', 'http_password_row']
+				HTTPTEST_AUTH_NTLM => ['http_username_row', 'http_password_row'],
+				HTTPTEST_AUTH_DIGEST => ['http_username_row', 'http_password_row']
 			], true) ?>);
 		}
 		<?php
diff --git a/frontends/php/items.php b/frontends/php/items.php
index e106067fad..003597011d 100644
--- a/frontends/php/items.php
+++ b/frontends/php/items.php
@@ -244,19 +244,21 @@ $fields = [
 										null
 									],
 	'http_authtype' =>				[T_ZBX_INT, O_OPT, null,
-										IN([HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM]),
+										IN([HTTPTEST_AUTH_NONE, HTTPTEST_AUTH_BASIC, HTTPTEST_AUTH_NTLM, HTTPTEST_AUTH_DIGEST]),
 										null
 									],
 	'http_username' =>				[T_ZBX_STR, O_OPT, null,	null,
 										'(isset({add}) || isset({update})) && isset({http_authtype})'.
 											' && ({http_authtype} == '.HTTPTEST_AUTH_BASIC.
-												' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.')',
+												' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.
+												' || {http_authtype} == '.HTTPTEST_AUTH_DIGEST.')',
 										_('Username')
 									],
 	'http_password' =>				[T_ZBX_STR, O_OPT, null,	null,
 										'(isset({add}) || isset({update})) && isset({http_authtype})'.
 											' && ({http_authtype} == '.HTTPTEST_AUTH_BASIC.
-												' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.')',
+												' || {http_authtype} == '.HTTPTEST_AUTH_NTLM.
+												' || {http_authtype} == '.HTTPTEST_AUTH_DIGEST.')',
 										_('Password')
 									],
 	// actions
diff --git a/include/common.h b/include/common.h
index 5ba27a0e19..a1b4878875 100644
--- a/include/common.h
+++ b/include/common.h
@@ -899,7 +899,8 @@ typedef enum
 {
 	HTTPTEST_AUTH_NONE = 0,
 	HTTPTEST_AUTH_BASIC,
-	HTTPTEST_AUTH_NTLM
+	HTTPTEST_AUTH_NTLM,
+	HTTPTEST_AUTH_DIGEST
 }
 zbx_httptest_auth_t;
 
diff --git a/src/libs/zbxhttp/http.c b/src/libs/zbxhttp/http.c
index 8a6637ca04..0ea893d6dc 100644
--- a/src/libs/zbxhttp/http.c
+++ b/src/libs/zbxhttp/http.c
@@ -150,6 +150,9 @@ int	zbx_http_prepare_auth(CURL *easyhandle, unsigned char authtype, const char *
 			case HTTPTEST_AUTH_NTLM:
 				curlauth = CURLAUTH_NTLM;
 				break;
+			case HTTPTEST_AUTH_DIGEST:
+				curlauth = CURLAUTH_DIGEST;
+				break;
 			default:
 				THIS_SHOULD_NEVER_HAPPEN;
 				break;