diff --git a/src/main/java/org/acra/security/AssetKeyStoreFactory.java b/src/main/java/org/acra/security/AssetKeyStoreFactory.java
index f68066aee..a870752cf 100644
--- a/src/main/java/org/acra/security/AssetKeyStoreFactory.java
+++ b/src/main/java/org/acra/security/AssetKeyStoreFactory.java
@@ -1,3 +1,18 @@
+/*
+ *  Copyright 2016
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
 package org.acra.security;
 
 import android.content.Context;
@@ -12,6 +27,9 @@
 
 /**
  * KeyStoreFactory for a certificate stored in an asset file
+ *
+ * @author F43nd1r
+ * @since 4.8.3
  */
 public class AssetKeyStoreFactory extends BaseKeyStoreFactory {
 
diff --git a/src/main/java/org/acra/security/BaseKeyStoreFactory.java b/src/main/java/org/acra/security/BaseKeyStoreFactory.java
index a4c1e5861..521ea2e81 100644
--- a/src/main/java/org/acra/security/BaseKeyStoreFactory.java
+++ b/src/main/java/org/acra/security/BaseKeyStoreFactory.java
@@ -1,3 +1,18 @@
+/*
+ *  Copyright 2016
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
 package org.acra.security;
 
 import android.content.Context;
@@ -20,6 +35,9 @@
 
 /**
  * Provides base KeyStoreFactory implementation
+ *
+ * @author F43nd1r
+ * @since 4.8.3
  */
 public abstract class BaseKeyStoreFactory implements KeyStoreFactory {
 
diff --git a/src/main/java/org/acra/security/FileKeyStoreFactory.java b/src/main/java/org/acra/security/FileKeyStoreFactory.java
index 7f6fa589a..418ae6e0e 100644
--- a/src/main/java/org/acra/security/FileKeyStoreFactory.java
+++ b/src/main/java/org/acra/security/FileKeyStoreFactory.java
@@ -1,3 +1,18 @@
+/*
+ *  Copyright 2016
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
 package org.acra.security;
 
 import android.content.Context;
@@ -13,6 +28,9 @@
 
 /**
  * KeyStoreFactory for a certificate stored in a file
+ *
+ * @author F43nd1r
+ * @since 4.8.3
  */
 public class FileKeyStoreFactory extends BaseKeyStoreFactory {
 
diff --git a/src/main/java/org/acra/security/KeyStoreFactory.java b/src/main/java/org/acra/security/KeyStoreFactory.java
index 3f01ab8da..cd91e44d9 100644
--- a/src/main/java/org/acra/security/KeyStoreFactory.java
+++ b/src/main/java/org/acra/security/KeyStoreFactory.java
@@ -1,3 +1,18 @@
+/*
+ *  Copyright 2016
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
 package org.acra.security;
 
 import android.content.Context;
@@ -11,6 +26,9 @@
  * The interface can be used to provide a KeyStore with certificates.
  * Note that implementations need to be serializable.
  * (e.g. can't be anonymous inner classes of non-serializable classes)
+ *
+ * @author F43nd1r
+ * @since 4.8.3
  */
 public interface KeyStoreFactory extends Serializable{
 
diff --git a/src/main/java/org/acra/security/ResourceKeyStoreFactory.java b/src/main/java/org/acra/security/ResourceKeyStoreFactory.java
index 7a1fdca1b..90b6bb3e7 100644
--- a/src/main/java/org/acra/security/ResourceKeyStoreFactory.java
+++ b/src/main/java/org/acra/security/ResourceKeyStoreFactory.java
@@ -1,3 +1,18 @@
+/*
+ *  Copyright 2016
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
 package org.acra.security;
 
 import android.content.Context;
@@ -8,6 +23,9 @@
 
 /**
  * KeyStoreFactory for a certificate stored in a raw resource
+ *
+ * @author F43nd1r
+ * @since 4.8.3
  */
 public class ResourceKeyStoreFactory extends BaseKeyStoreFactory {