diff --git a/doc/sources/admin/conf.py b/doc/sources/admin/conf.py
index 154ac0e1d..133d7e223 100644
--- a/doc/sources/admin/conf.py
+++ b/doc/sources/admin/conf.py
@@ -50,7 +50,7 @@ master_doc = 'start'
 
 # General information about the project.
 project = u'LemonLDAP::NG'
-copyright = u'2021, LemonLDAP::NG'
+copyright = u'2022, LemonLDAP::NG'
 author = u'LemonLDAP::NG'
 
 # The version info for the project you're documenting, acts as replacement for
diff --git a/doc/sources/admin/decryptvalue.rst b/doc/sources/admin/decryptvalue.rst
index 799bcaf29..cf25da57c 100644
--- a/doc/sources/admin/decryptvalue.rst
+++ b/doc/sources/admin/decryptvalue.rst
@@ -16,19 +16,19 @@ DecryptValue plugin can be allowed or denied for specific users.
    -  **Use rule**: Select which users may use this plugin
    -  **Decrypt functions**: Set functions used for decrypting ciphered
       values. Each function is tested until one succeeds. Let it blank
-      to use internal decrypt function.
+      to use internal ``decrypt`` extended function.
 
 
-.. danger::
+.. attention::
+
+    The ciphered value is the first parameter passed to custom functions.
+
+    The ``Encryption key`` is passed to custom funtions as second parameter
+    (see :ref:`Security settings<security-configure-security-settings>)`.
 
     Custom functions must be defined into
-    ``Lemonldap::NG::Portal::My::Plugin`` and set:
+    ``My::Plugin`` and set:
 
     ::
 
        My::Plugin::function1 My::Plugin::function2
-
-
-
-.. |image0| image:: /documentation/beta.png
-   :width: 100px
diff --git a/doc/sources/admin/security.rst b/doc/sources/admin/security.rst
index dd28a4697..c80ec6ef9 100644
--- a/doc/sources/admin/security.rst
+++ b/doc/sources/admin/security.rst
@@ -310,7 +310,7 @@ Go in Manager, ``General parameters`` » ``Advanced parameters`` »
    authentication renewal cannot be forced, used to prevent to loose the
    current authentication during the main process. If you experience
    slow network performances, you can increase this value.
--  **Encryption key**: key used to crypt some data, should not be known
+-  **Encryption key**: key used for crypting some data, should not be known
    by other applications
 -  **Trusted domains**: domains on which the user can be redirected
    after login on portal.
diff --git a/doc/sources/admin/start.rst b/doc/sources/admin/start.rst
index 61af6fe3e..ecc6d1047 100644
--- a/doc/sources/admin/start.rst
+++ b/doc/sources/admin/start.rst
@@ -288,7 +288,7 @@ Name                                                                 Description
 :doc:`Context switching<contextswitching>`  [7]_\ |new|              Switch context other users
 :doc:`CrowdSec<crowdsec>`  [8]_\ |new|                               CrowdSec bouncer
 :doc:`Custom<plugincustom>`                                          Write a custom plugin
-:doc:`Decrypt value<decryptvalue>`  [9]_\ |beta|                     Decrypt ciphered values
+:doc:`Decrypt value<decryptvalue>`  [9]_\                            Decrypt ciphered values
 :doc:`Display login history<loginhistory>`                           Display Success/Fails logins
 :doc:`Force Authentication<forcereauthn>`                            Force authentication to access to Portal
 :doc:`Global Logout<globallogout>`  [10]_                            Suggest to close all opened sessions at logout
diff --git a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/DecryptValue.pm b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/DecryptValue.pm
index 7ce3cfe1c..84381f7e3 100644
--- a/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/DecryptValue.pm
+++ b/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/Plugins/DecryptValue.pm
@@ -8,7 +8,7 @@ use Lemonldap::NG::Portal::Main::Constants qw(
   PE_DECRYPTVALUE_SERVICE_NOT_ALLOWED
 );
 
-our $VERSION = '2.0.12';
+our $VERSION = '2.0.15';
 
 extends qw(
   Lemonldap::NG::Portal::Main::Plugin
@@ -37,13 +37,7 @@ sub init {
     $self->rule(
         $self->p->buildRule( $self->conf->{decryptValueRule}, 'decryptValue' )
     );
-    return 0 unless $self->rule;
-
-    # Add warning in log
-    $self->logger->warn(
-        "DecryptValue plugin is enabled. You are using a beta version!");
-
-    return 1;
+    return $self->rule ? 1 : 0;
 }
 
 # RUNNING METHOD
@@ -59,10 +53,6 @@ sub display {
 
     # Display form
     my $params = {
-        PORTAL    => $self->conf->{portal},
-        MAIN_LOGO => $self->conf->{portalMainLogo},
-        SKIN      => $self->p->getSkin($req),
-        LANGS     => $self->conf->{showLanguages},
         MSG       => 'decryptCipheredValue',
         ALERTE    => 'alert-warning',
         TOKEN     => (
@@ -106,10 +96,6 @@ sub run {
         }
 
         my $params = {
-            PORTAL    => $self->conf->{portal},
-            MAIN_LOGO => $self->conf->{portalMainLogo},
-            SKIN      => $self->p->getSkin($req),
-            LANGS     => $self->conf->{showLanguages},
             MSG       => "PE$msg",
             ALERTE    => 'alert-warning',
             TOKEN     => $token,
@@ -124,18 +110,20 @@ sub run {
     $self->logger->debug("decryptValue tried with value: $cipheredValue");
 
     if ($cipheredValue) {
-        if (    $self->{conf}->{decryptValueFunctions}
-            and $self->{conf}->{decryptValueFunctions} =~
+        if (    $self->conf->{decryptValueFunctions}
+            and $self->conf->{decryptValueFunctions} =~
             qr/^(?:\w+(?:::\w+)*(?:\s+\w+(?:::\w+)*)*)?$/ )
         {
             foreach ( split( /\s+/, $self->{conf}->{decryptValueFunctions} ) ) {
                 $self->userLogger->notice(
                     "Try to decrypt value with function: $_");
                 /^([\w:{2}]*?)(?:::)?(?:\w+)$/;
-                eval "require Lemonldap::NG::Portal::$1";
+                eval "require $1";
                 $self->logger->debug("Unable to load decrypt module: $@")
                   if ($@);
-                $decryptedValue = eval "$_" . '($cipheredValue)' unless ($@);
+                my $key = $self->conf->{key};
+                $decryptedValue = eval "$_" . '($cipheredValue, $key)'
+                  unless ($@);
                 $self->logger->debug(
                     $@
                     ? "Unable to eval decrypt function: $@"
@@ -146,7 +134,7 @@ sub run {
         }
         else {
             $self->userLogger->notice("Malformed decrypt functions")
-              if $self->{conf}->{decryptValueFunctions};
+              if $self->conf->{decryptValueFunctions};
             $self->userLogger->notice(
                 "Try to decrypt value with internal LL::NG decrypt function");
             $decryptedValue =
@@ -161,10 +149,6 @@ sub run {
 
     # Display form
     my $params = {
-        PORTAL    => $self->conf->{portal},
-        MAIN_LOGO => $self->conf->{portalMainLogo},
-        SKIN      => $self->p->getSkin($req),
-        LANGS     => $self->conf->{showLanguages},
         MSG       => 'decryptCipheredValue',
         DECRYPTED => (
             $decryptedValue ? $decryptedValue
diff --git a/lemonldap-ng-portal/site/htdocs/static/languages/fr.json b/lemonldap-ng-portal/site/htdocs/static/languages/fr.json
index e2b5a313d..b106e7ae1 100644
--- a/lemonldap-ng-portal/site/htdocs/static/languages/fr.json
+++ b/lemonldap-ng-portal/site/htdocs/static/languages/fr.json
@@ -136,7 +136,7 @@
 "checkUserNoSessionFound":"Pas de session SSO trouvée",
 "choose2f":"Choisissez votre second facteur",
 "chooseApp":"Choisissez une application à laquelle vous êtes autorisé à accéder",
-"cipheredValue":"Valeur cryptée",
+"cipheredValue":"Valeur chiffrée",
 "click2Reset":"Cliquez içi pour réinitialiser votre mot de passe",
 "clickHere":"Cliquez ici",
 "clickOnYubikey":"Cliquez sur votre Yubikey",
@@ -155,7 +155,7 @@
 "current":"Courante",
 "currentPwd":"Mot de passe actuel",
 "date":"Date",
-"decryptCipheredValue":"Déchiffrer une valeur cryptée",
+"decryptCipheredValue":"Décoder une valeur chriffée",
 "enterCred":"Merci de vous authentifier",
 "enterExt2fCode":"Un code vous a été envoyé, entrez-le ici",
 "enterMail2fCode":"Un code vous a été envoyé par mail, entrez-le ici",
@@ -216,7 +216,7 @@
 "noNotification":"Aucune notification acceptée trouvée",
 "noTOTPFound":"Aucun secret TOTP trouvé",
 "noU2FKeyFound":"Aucune clef U2F trouvée",
-"notAnEncryptedValue":"Ce n'est pas une valeur cryptée",
+"notAnEncryptedValue":"Impossible de décoder cette valeur",
 "notAuthorized":"Vous n'êtes pas autorisé à faire cette requête",
 "notAuthorizedAuthLevel":"Cette action requiert un niveau d'authentification supérieur",
 "notFound":"Non trouvé : vous tentez d'accéder à une page non disponible",
diff --git a/lemonldap-ng-portal/t/58-DecryptValue-with-custom-function.t b/lemonldap-ng-portal/t/58-DecryptValue-with-custom-function.t
index 898eb4995..42209cac4 100644
--- a/lemonldap-ng-portal/t/58-DecryptValue-with-custom-function.t
+++ b/lemonldap-ng-portal/t/58-DecryptValue-with-custom-function.t
@@ -14,12 +14,13 @@ my $client = LLNG::Manager::Test->new( {
             logLevel              => 'error',
             authentication        => 'Demo',
             userDB                => 'Same',
+            key                   => 'Demo',
             loginHistoryEnabled   => 0,
             brutForceProtection   => 0,
             requireToken          => 0,
             decryptValueRule      => 1,
             decryptValueFunctions =>
-              'Custom::empty Custom::test_uc Custom::undefined',
+'Lemonldap::NG::Portal::Custom::empty Lemonldap::NG::Portal::Custom::test_uc Lemonldap::NG::Portal::Custom::undefined',
         }
     }
 );
@@ -84,7 +85,7 @@ ok(
     ),
     'POST decryptvalue with valid value'
 );
-ok( $res->[2]->[0] =~ m%<span trspan="LOWERCASE"></span>%,
+ok( $res->[2]->[0] =~ m%<span trspan="LOWERCASE_DEMO"></span>%,
     'Found decryted value' )
   or explain( $res->[2]->[0], 'Decryted value NOT found' );
 count(2);
diff --git a/lemonldap-ng-portal/t/lib/Lemonldap/NG/Portal/Custom.pm b/lemonldap-ng-portal/t/lib/Lemonldap/NG/Portal/Custom.pm
index ed28fb143..f06febdc4 100644
--- a/lemonldap-ng-portal/t/lib/Lemonldap/NG/Portal/Custom.pm
+++ b/lemonldap-ng-portal/t/lib/Lemonldap/NG/Portal/Custom.pm
@@ -1,4 +1,4 @@
-package Custom;
+package Lemonldap::NG::Portal::Custom;
 
 sub empty {
     return '';
@@ -9,7 +9,7 @@ sub undefined {
 }
 
 sub test_uc {
-    return uc $_[0];
+    return uc($_[0] . '_' . $_[1]);
 }
 
 1;