diff --git a/modules/imap/hm-imap.php b/modules/imap/hm-imap.php
index 9b4ffda3c0..cd35109525 100644
--- a/modules/imap/hm-imap.php
+++ b/modules/imap/hm-imap.php
@@ -164,11 +164,12 @@ class Hm_IMAP extends Hm_IMAP_Cache {
 
         /* current selected mailbox status */
         public $folder_state = false;
-
+        private $scramAuthenticator;
         /**
          * constructor
          */
         public function __construct() {
+            $this->scramAuthenticator = new ScramAuthenticator();
         }
 
         /* ------------------ CONNECT/AUTH ------------------------------------- */
@@ -233,40 +234,57 @@ public function disconnect() {
                 fclose($this->handle);
             }
         }
-
         /**
-         * authenticate the username/password
+         * Authenticate the username/password
          * @param string $username IMAP login name
          * @param string $password IMAP password
-         * @return bool true on sucessful login
+         * @return bool true on successful login
          */
         public function authenticate($username, $password) {
             $this->get_capability();
             if (!$this->tls) {
                 $this->starttls();
+            } 
+            $scramMechanisms = [
+                'scram-sha-1', 'scram-sha-1-plus',
+                'scram-sha-256', 'scram-sha-256-plus',
+                'scram-sha-224', 'scram-sha-224-plus',
+                'scram-sha-384', 'scram-sha-384-plus',
+                'scram-sha-512', 'scram-sha-512-plus'
+            ];
+            if (in_array(strtolower($this->auth), $scramMechanisms)) {
+                $scramAlgorithm = strtoupper($this->auth);
+                if ($this->scramAuthenticator->authenticateScram(
+                    $scramAlgorithm,
+                    $username,
+                    $password,
+                    [$this, 'get_response'],
+                    [$this, 'send_command']
+                )) {
+                    return true; // Authentication successful
+                }
             }
             switch (strtolower($this->auth)) {
-
                 case 'cram-md5':
                     $this->banner = $this->fgets(1024);
-                    $cram1 = 'AUTHENTICATE CRAM-MD5'."\r\n";
+                    $cram1 = 'AUTHENTICATE CRAM-MD5' . "\r\n";
                     $this->send_command($cram1);
                     $response = $this->get_response();
                     $challenge = base64_decode(substr(trim($response[0]), 1));
-                    $pass = str_repeat(chr(0x00), (64-strlen($password)));
+                    $pass = str_repeat(chr(0x00), (64 - strlen($password)));
                     $ipad = str_repeat(chr(0x36), 64);
                     $opad = str_repeat(chr(0x5c), 64);
-                    $digest = bin2hex(pack("H*", md5(($pass ^ $opad).pack("H*", md5(($pass ^ $ipad).$challenge)))));
-                    $challenge_response = base64_encode($username.' '.$digest);
-                    fputs($this->handle, $challenge_response."\r\n");
+                    $digest = bin2hex(pack("H*", md5(($pass ^ $opad) . pack("H*", md5(($pass ^ $ipad) . $challenge)))));
+                    $challenge_response = base64_encode($username . ' ' . $digest);
+                    fputs($this->handle, $challenge_response . "\r\n");
                     break;
                 case 'xoauth2':
-                    $challenge = 'user='.$username.chr(1).'auth=Bearer '.$password.chr(1).chr(1);
-                    $command = 'AUTHENTICATE XOAUTH2 '.base64_encode($challenge)."\r\n";
+                    $challenge = 'user=' . $username . chr(1) . 'auth=Bearer ' . $password . chr(1) . chr(1);
+                    $command = 'AUTHENTICATE XOAUTH2 ' . base64_encode($challenge) . "\r\n";
                     $this->send_command($command);
                     break;
                 default:
-                    $login = 'LOGIN "'.str_replace(array('\\', '"'), array('\\\\', '\"'), $username).'" "'.str_replace(array('\\', '"'), array('\\\\', '\"'), $password). "\"\r\n";
+                    $login = 'LOGIN "' . str_replace(array('\\', '"'), array('\\\\', '\"'), $username) . '" "' . str_replace(array('\\', '"'), array('\\\\', '\"'), $password) . "\"\r\n";
                     $this->send_command($login);
                     break;
             }
@@ -282,26 +300,24 @@ public function authenticate($username, $password) {
                         $this->banner = $res[0];
                     }
                 }
-                if (stristr($response, 'A'.$this->command_count.' OK')) {
+                if (stristr($response, 'A' . $this->command_count . ' OK')) {
                     $authed = true;
                     $this->state = 'authenticated';
-                }
-                elseif (strtolower($this->auth) == 'xoauth2' && preg_match("/^\+ ([a-zA-Z0-9=]+)$/", $response, $matches)) {
+                } elseif (strtolower($this->auth) == 'xoauth2' && preg_match("/^\+ ([a-zA-Z0-9=]+)$/", $response, $matches)) {
                     $this->send_command("\r\n", true);
                     $this->get_response();
                 }
             }
             if ($authed) {
-                $this->debug[] = 'Logged in successfully as '.$username;
+                $this->debug[] = 'Logged in successfully as ' . $username;
                 $this->get_capability();
                 $this->enable();
-                //$this->enable_compression();
-            }
-            else {
-                $this->debug[] = 'Log in for '.$username.' FAILED';
+            } else {
+                $this->debug[] = 'Log in for ' . $username . ' FAILED';
             }
             return $authed;
         }
+        
 
         /**
          * attempt starttls
diff --git a/modules/scram/scram.php b/modules/scram/scram.php
new file mode 100644
index 0000000000..66b1ba2791
--- /dev/null
+++ b/modules/scram/scram.php
@@ -0,0 +1,105 @@
+<?php
+
+class ScramAuthenticator {
+
+    private $hashes = array(
+        'sha-1'   => 'sha1',
+        'sha1'    => 'sha1',
+        'sha-224' => 'sha224',
+        'sha224'  => 'sha224',
+        'sha-256' => 'sha256',
+        'sha256'  => 'sha256',
+        'sha-384' => 'sha384',
+        'sha384'  => 'sha384',
+        'sha-512' => 'sha512',
+        'sha512'  => 'sha512'
+    );
+
+    private function getHashAlgorithm($scramAlgorithm) {
+        $parts = explode('-', strtolower($scramAlgorithm));
+        return $this->hashes[$parts[1]] ?? 'sha1'; // Default to sha1 if the algorithm is not found
+    }
+    private function log($message) {
+        // Use Hm_Debug to add the debug message
+        Hm_Debug::add(sprintf($message));
+    }
+    public function generateClientProof($username, $password, $salt, $clientNonce, $serverNonce, $algorithm) {
+        $iterations = 4096;
+        $keyLength = strlen(hash($algorithm, '', true)); // Dynamically determine key length based on algorithm
+
+        $passwordBytes = hash($algorithm, $password, true);
+        $saltedPassword = hash_pbkdf2($algorithm, $passwordBytes, $salt, $iterations, $keyLength, true);
+        $clientKey = hash_hmac($algorithm, "Client Key", $saltedPassword, true);
+        $storedKey = hash($algorithm, $clientKey, true);
+        $authMessage = 'n=' . $username . ',r=' . $clientNonce . ',s=' . base64_encode($salt) . ',r=' . $serverNonce;
+        $clientSignature = hash_hmac($algorithm, $authMessage, $storedKey, true);
+        $clientProof = base64_encode($clientKey ^ $clientSignature);
+        $this->log("Client proof generated successfully");
+        return $clientProof;
+    }
+
+    public function authenticateScram($scramAlgorithm, $username, $password, $getServerResponse, $sendCommand) {
+        $algorithm = $this->getHashAlgorithm($scramAlgorithm);
+
+        // Send initial SCRAM command
+        $scramCommand = 'AUTHENTICATE ' . $scramAlgorithm . "\r\n";
+        $sendCommand($scramCommand);
+        $response = $getServerResponse();
+        if (!empty($response) && substr($response[0], 0, 2) == '+ ') {
+            $this->log("Received server challenge: " . $response[0]);
+            // Extract salt and server nonce from the server's challenge
+            $serverChallenge = base64_decode(substr($response[0], 2));
+            $parts = explode(',', $serverChallenge);
+            $serverNonce = base64_decode(substr($parts[0], strpos($parts[0], "=") + 1));
+            $salt = base64_decode(substr($parts[1], strpos($parts[1], "=") + 1));
+
+            // Generate client nonce
+            $clientNonce = base64_encode(random_bytes(32));
+            $this->log("Generated client nonce: " . $clientNonce);
+
+            // Calculate client proof
+            $clientProof = $this->generateClientProof($username, $password, $salt, $clientNonce, $serverNonce, $algorithm);
+
+            // Construct client final message
+            $channelBindingData = (stripos($scramAlgorithm, 'plus') !== false) ? 'c=' . base64_encode('tls-unique') . ',' : 'c=biws,';
+            $clientFinalMessage = $channelBindingData . 'r=' . $serverNonce . $clientNonce . ',p=' . $clientProof;
+            $clientFinalMessageEncoded = base64_encode($clientFinalMessage);
+            $this->log("Sending client final message: " . $clientFinalMessageEncoded);
+            // Send client final message to server
+            $sendCommand($clientFinalMessageEncoded . "\r\n");
+
+            // Verify server's response
+            $response = $getServerResponse();
+            if (!empty($response) && substr($response[0], 0, 2) == '+ ') {
+                $serverFinalMessage = base64_decode(substr($response[0], 2));
+                $parts = explode(',', $serverFinalMessage);
+                $serverProof = substr($parts[0], strpos($parts[0], "=") + 1);
+
+                // Generate server key
+                $passwordBytes = hash($algorithm, $password, true);
+                $saltedPassword = hash_pbkdf2($algorithm, $passwordBytes, $salt, 4096, strlen(hash($algorithm, '', true)), true);
+                $serverKey = hash_hmac($algorithm, "Server Key", $saltedPassword, true);
+
+                // Calculate server signature
+                $authMessage = 'n=' . $username . ',r=' . $clientNonce . ',s=' . base64_encode($salt) . ',r=' . $serverNonce;
+                $serverSignature = base64_encode(hash_hmac($algorithm, $authMessage, $serverKey, true));
+
+                // Compare server signature with server proof
+                if ($serverSignature === $serverProof) {
+                    $this->log("SCRAM authentication successful");
+                    return true; // Authentication successful if they match
+                } else {
+                    $this->log("SCRAM authentication failed: Server signature mismatch");
+                }
+            } else {
+                $this->log("SCRAM authentication failed: Invalid server final response");
+            }
+        } else {
+            $this->log("SCRAM authentication failed: Invalid server challenge");
+        }
+        return false; // Authentication failed
+    }
+}
+
+
+?>
\ No newline at end of file
diff --git a/modules/smtp/hm-smtp.php b/modules/smtp/hm-smtp.php
index eb0ea73cc5..16671cfe15 100644
--- a/modules/smtp/hm-smtp.php
+++ b/modules/smtp/hm-smtp.php
@@ -79,9 +79,10 @@ class Hm_SMTP {
     private $password;
     public $state;
     private $request_auths = array();
+    private $scramAuthenticator;
 
     function __construct($conf) {
-
+    $this->scramAuthenticator = new ScramAuthenticator();
         $this->hostname = php_uname('n');
         if (preg_match("/:\d+$/", $this->hostname)) {
             $this->hostname = substr($this->hostname, 0, strpos($this->hostname, ':'));
@@ -108,7 +109,20 @@ function __construct($conf) {
         if (!$this->tls) {
             $this->starttls = true;
         }
-        $this->request_auths = array('cram-md5', 'login', 'plain');
+        $this->request_auths = array(
+            'scram-sha-1',
+            'scram-sha-1-plus',
+            'scram-sha-256',
+            'scram-sha-256-plus',
+            'scram-sha-224',
+            'scram-sha-224-plus',
+            'scram-sha-384',
+            'scram-sha-384-plus',
+            'scram-sha-512',
+            'scram-sha-512-plus',
+            'cram-md5',
+            'login',
+            'plain');
         if (isset($conf['auth'])) {
             array_unshift($this->request_auths, $conf['auth']);
         }
@@ -315,86 +329,93 @@ function choose_auth() {
         }
         return trim($this->supports_auth[0]);
     }
-
-    /**
-     * authenticate the username and password to the server
-     */
     function authenticate($username, $password, $mech) {
-        $result = false;
-        switch (strtolower($mech)) {
-            case 'external':
-                $command = 'AUTH EXTERNAL '.base64_encode($username);
-                $this->send_command($command);
-                break;
-            case 'xoauth2':
-                $challenge = 'user='.$username.chr(1).'auth=Bearer '.$password.chr(1).chr(1);
-                $command = 'AUTH XOAUTH2 '.base64_encode($challenge);
-                $this->send_command($command);
-                break;
-            case 'cram-md5':
-                $command = 'AUTH CRAM-MD5';
-                $this->send_command($command);
-                $response = $this->get_response();
-                if (empty($response) || !isset($response[0][1][0]) || $this->compare_response($response,'334') != 0) {
-                    $result = 'FATAL: SMTP server does not support AUTH CRAM-MD5';
-                }
-                else {
-                    $challenge = base64_decode(trim($response[0][1][0]));
-                    $password .= str_repeat(chr(0x00), (64-strlen($password)));
-                    $ipad = str_repeat(chr(0x36), 64);
-                    $opad = str_repeat(chr(0x5c), 64);
-                    $digest = bin2hex(pack('H*', md5(($password ^ $opad).pack('H*', md5(($password ^ $ipad).$challenge)))));
-                    $command = base64_encode($username.' '.$digest);
+        $mech = strtolower($mech);
+        if (substr($mech, 0, 6) == 'scram-') {
+            $result = $this->scramAuthenticator->authenticateScram(
+                strtoupper($mech),
+                $username,
+                $password,
+                [$this, 'get_response'],
+                [$this, 'send_command']
+            );
+            if ($result) {
+                return 'Authentication successful';
+            }
+            return 'Authentication failed';
+        } else {
+            switch ($mech) {
+                case 'external':
+                    $command = 'AUTH EXTERNAL '.base64_encode($username);
                     $this->send_command($command);
-                }
-                break;
-            case 'ntlm':
-                $command = 'AUTH NTLM '.$this->build_ntlm_type_one();
-                $this->send_command($command);
-                $response = $this->get_response();
-                if (empty($response) || !isset($response[0][1][0]) || $this->compare_response($response,'334') != 0) {
-                    $result = 'FATAL: SMTP server does not support AUTH NTLM';
-                }
-                else {
-                    $ntlm_res = $this->parse_ntlm_type_two($response[0][1][0]);
-                    $command = $this->build_ntlm_type_three($ntlm_res, $username, $password);
+                    break;
+                case 'xoauth2':
+                    $challenge = 'user='.$username.chr(1).'auth=Bearer '.$password.chr(1).chr(1);
+                    $command = 'AUTH XOAUTH2 '.base64_encode($challenge);
                     $this->send_command($command);
-                }
-                break;
-            case 'login':
-                $command = 'AUTH LOGIN';
-                $this->send_command($command);
-                $response = $this->get_response();
-                if (empty($response) || $this->compare_response($response,'334') != 0) {
-                    $result =  'FATAL: SMTP server does not support AUTH LOGIN';
-                }
-                else {
-                    $command = base64_encode($username);
+                    break;
+                case 'cram-md5':
+                    $command = 'AUTH CRAM-MD5';
+                    $this->send_command($command);
+                    $response = $this->get_response();
+                    if (empty($response) || !isset($response[0][1][0]) || $this->compare_response($response,'334') != 0) {
+                        $result = 'FATAL: SMTP server does not support AUTH CRAM-MD5';
+                    } else {
+                        $challenge = base64_decode(trim($response[0][1][0]));
+                        $password .= str_repeat(chr(0x00), (64-strlen($password)));
+                        $ipad = str_repeat(chr(0x36), 64);
+                        $opad = str_repeat(chr(0x5c), 64);
+                        $digest = bin2hex(pack('H*', md5(($password ^ $opad).pack('H*', md5(($password ^ $ipad).$challenge)))));
+                        $command = base64_encode($username.' '.$digest);
+                        $this->send_command($command);
+                    }
+                    break;
+                case 'ntlm':
+                    $command = 'AUTH NTLM '.$this->build_ntlm_type_one();
+                    $this->send_command($command);
+                    $response = $this->get_response();
+                    if (empty($response) || !isset($response[0][1][0]) || $this->compare_response($response,'334') != 0) {
+                        $result = 'FATAL: SMTP server does not support AUTH NTLM';
+                    } else {
+                        $ntlm_res = $this->parse_ntlm_type_two($response[0][1][0]);
+                        $command = $this->build_ntlm_type_three($ntlm_res, $username, $password);
+                        $this->send_command($command);
+                    }
+                    break;
+                case 'login':
+                    $command = 'AUTH LOGIN';
                     $this->send_command($command);
                     $response = $this->get_response();
                     if (empty($response) || $this->compare_response($response,'334') != 0) {
-                        $result = 'FATAL: SMTP server does not support AUTH LOGIN';
+                        $result =  'FATAL: SMTP server does not support AUTH LOGIN';
+                    } else {
+                        $command = base64_encode($username);
+                        $this->send_command($command);
+                        $response = $this->get_response();
+                        if (empty($response) || $this->compare_response($response,'334') != 0) {
+                            $result = 'FATAL: SMTP server does not support AUTH LOGIN';
+                        }
+                        $command = base64_encode($password);
+                        $this->send_command($command);
                     }
-                    $command = base64_encode($password);
+                    break;
+                case 'plain':
+                    $command = 'AUTH PLAIN '.base64_encode("\0".$username."\0".$password);
                     $this->send_command($command);
-                }
-                break;
-            case 'plain':
-                $command = 'AUTH PLAIN '.base64_encode("\0".$username."\0".$password);
-                $this->send_command($command);
-                break;
-            default:
-                $result = 'FATAL: Unknown SMTP AUTH mechanism: '.$mech;
-                break;
+                    break;
+                default:
+                    $result = 'FATAL: Unknown SMTP AUTH mechanism: '.$mech;
+                    break;
+            }
         }
+    
         if (!$result) {
             $result = 'An error occurred authenticating to the SMTP server';
             $res = $this->get_response();
             if ($this->compare_response($res, '235') == 0) {
                 $this->state = 'authed';
                 $result = false;
-            }
-            else {
+            } else {
                 $result = 'Authorization failure';
                 if (isset($res[0][1])) {
                     $result .= ': '.implode(' ', $res[0][1]);
diff --git a/tests/phpunit/imap_commands.php b/tests/phpunit/imap_commands.php
index caf47adc41..a04cd6b49d 100644
--- a/tests/phpunit/imap_commands.php
+++ b/tests/phpunit/imap_commands.php
@@ -2,7 +2,7 @@
 return array(
 
     'A1 CAPABILITY' =>
-        "* CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=CRAM-MD5\r\n",
+        "* CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=CRAM-MD5 AUTH=SCRAM-SHA-256-PLUS\r\n",
 
     'A3 CAPABILITY' =>
         "* CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=".
@@ -32,7 +32,18 @@
 
     'dGVzdHVzZXIgMGYxMzE5YmIxMzMxOWViOWU4ZDdkM2JiZDJiZDJlOTQ=' =>
         "A2 OK authentication successful\r\n",
+    
+    'A2 AUTHENTICATE SCRAM-SHA-256' =>
+        "+ r=fyko+d2lbbFgONRv9qkxdawL,z=SCRAM-SHA-256,c=biws,n,,\r\n",
 
+    'c=biws,r=fyko+d2lbbFgONRv9qkxdawL1qkxdawL,p=YzQxNmVmY2ViMDAxYzdmNTkxOWFlZDIyNTgzM2NlZDBlZjBiNTNkZjUxNTQ1ZmZmNmY5NTlkOGZjNjYxYWEyNQ==' =>
+        "A2 OK authentication successful\r\n",
+
+    'A2 AUTHENTICATE SCRAM-SHA-256-PLUS' =>
+        "+ r=fyko+d2lbbFgONRv9qkxdawL,z=SCRAM-SHA-256-PLUS,c=tls-unique,n,,\r\n",
+    
+    'c=tls-unique,r=fyko+d2lbbFgONRv9qkxdawL1qkxdawL,p=YzQxNmVmY2ViMDAxYzdmNTkxOWFlZDIyNTgzM2NlZDBlZjBiNTNkZjUxNTQ1ZmZmNmY5NTlkOGZjNjYxYWEyNQ==' =>
+        "A2 OK authentication successful\r\n",
     'A2 AUTHENTICATE XOAUTH2 dXNlcj10ZXN0dXNlcgFhdXRoPUJlYXJlciB0ZXN0cGFzcwEB' =>
         "+ V1WTI5dENnPT0BAQ==\r\n",
 
diff --git a/tests/phpunit/modules/imap/hm-imap.php b/tests/phpunit/modules/imap/hm-imap.php
index 9b3593d5d0..73b34d0fd5 100644
--- a/tests/phpunit/modules/imap/hm-imap.php
+++ b/tests/phpunit/modules/imap/hm-imap.php
@@ -94,6 +94,123 @@ public function test_authenticate_cram() {
         $res = $this->debug();
         $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
     }
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_1() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-1';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_1_plus() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-1-plus';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_256() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-256';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_256_plus() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-256-plus';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_224_plus() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-224-plus';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_224() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-224';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_384_plus() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-384-plus';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_384() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-384';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_512() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-512';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+/**
+ * @preserveGlobalState disabled
+ * @runInSeparateProcess
+ */
+public function test_authenticate_scram_sha_512_plus() {
+    $this->reset();
+    $this->config['auth'] = 'scram-sha-512-plus';
+    $this->connect();
+    $res = $this->debug();
+    $this->assertEquals('Logged in successfully as testuser', $res['debug'][2]);
+}
+
+
     /**
      * @preserveGlobalState disabled
      * @runInSeparateProcess