diff --git a/src/Common/Config.php b/src/Common/Config.php
index 345083f..ee7b2da 100644
--- a/src/Common/Config.php
+++ b/src/Common/Config.php
@@ -25,16 +25,11 @@
 final class Config
 {
     const VERSION = "PHP Privacy v2";
-    const COMMENT = "https://github.com/web-of-trust/php-privacy";
+    const COMMENT = "The PHP OpenPGP library";
 
     const CIPHER_MODE = "cfb";
     const HKDF_ALGO = "sha256";
 
-    const PADDING_MIN = 16;
-    const PADDING_MAX = 32;
-
-    const SALT_NOTATION = "salt@openpgp.org";
-
     const AEAD_SUPPORTED = true;
     const AEAD_CHUNK_SIZE_MIN = 10;
     const AEAD_CHUNK_SIZE_MAX = 16;
diff --git a/src/Key/AbstractKey.php b/src/Key/AbstractKey.php
index f7d5823..4989670 100644
--- a/src/Key/AbstractKey.php
+++ b/src/Key/AbstractKey.php
@@ -9,7 +9,6 @@
 namespace OpenPGP\Key;
 
 use DateTimeInterface;
-use OpenPGP\Common\Config;
 use OpenPGP\Enum\{KeyAlgorithm, PacketTag, RevocationReasonTag, SignatureType};
 use OpenPGP\Packet\{PacketList, Padding, Signature};
 use OpenPGP\Packet\Signature\{
@@ -119,7 +118,7 @@ public function getPacketList(): PacketListInterface
         ];
         if ($this->getVersion() === 6) {
             $packets[] = Padding::createPadding(
-                random_int(Config::PADDING_MIN, Config::PADDING_MAX)
+                random_int(Padding::PADDING_MIN, Padding::PADDING_MAX)
             );
         }
 
diff --git a/src/Packet/Padding.php b/src/Packet/Padding.php
index 50ddc14..b3f1806 100644
--- a/src/Packet/Padding.php
+++ b/src/Packet/Padding.php
@@ -23,6 +23,9 @@
  */
 class Padding extends AbstractPacket
 {
+    const PADDING_MIN = 16;
+    const PADDING_MAX = 32;
+
     /**
      * Constructor
      *
diff --git a/src/Packet/Signature.php b/src/Packet/Signature.php
index 65cfa8e..5eeff75 100644
--- a/src/Packet/Signature.php
+++ b/src/Packet/Signature.php
@@ -225,7 +225,7 @@ public static function createSignature(
             $salt = Random::string($hashAlgorithm->saltSize());
         } else {
             $hashedSubpackets[] = Signature\NotationData::fromNotation(
-                Config::SALT_NOTATION,
+                NotationData::SALT_NOTATION,
                 Random::string($hashAlgorithm->saltSize())
             );
         }
diff --git a/src/Packet/Signature/NotationData.php b/src/Packet/Signature/NotationData.php
index 0aff149..fb9033c 100644
--- a/src/Packet/Signature/NotationData.php
+++ b/src/Packet/Signature/NotationData.php
@@ -27,6 +27,8 @@ class NotationData extends SignatureSubpacket implements NotationDataInterface
     const NAME_LENGTH = 2;
     const VALUE_LENGTH = 2;
 
+    const SALT_NOTATION = "salt@php-openpgp.org";
+
     /**
      * Constructor
      *