diff --git a/src/main/java/org/apache/commons/crypto/stream/input/package-info.java b/src/main/java/org/apache/commons/crypto/stream/input/package-info.java
new file mode 100644
index 000000000..66e7af51d
--- /dev/null
+++ b/src/main/java/org/apache/commons/crypto/stream/input/package-info.java
@@ -0,0 +1,21 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+/**
+ * Input classes
+ */
+package org.apache.commons.crypto.stream.input;
diff --git a/src/main/java/org/apache/commons/crypto/stream/output/package-info.java b/src/main/java/org/apache/commons/crypto/stream/output/package-info.java
new file mode 100644
index 000000000..eca3927ac
--- /dev/null
+++ b/src/main/java/org/apache/commons/crypto/stream/output/package-info.java
@@ -0,0 +1,21 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+/**
+ * Output classes
+ */
+package org.apache.commons.crypto.stream.output;
diff --git a/src/main/java/org/apache/commons/crypto/stream/package-info.java b/src/main/java/org/apache/commons/crypto/stream/package-info.java
new file mode 100644
index 000000000..416d78bfc
--- /dev/null
+++ b/src/main/java/org/apache/commons/crypto/stream/package-info.java
@@ -0,0 +1,21 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+/**
+ * Stream classes
+ */
+package org.apache.commons.crypto.stream;