diff --git a/avbImpl/src/avbVerifier/cpp/main.cpp b/avbImpl/src/avbVerifier/cpp/main.cpp
index a0a924c5..901745f2 100644
--- a/avbImpl/src/avbVerifier/cpp/main.cpp
+++ b/avbImpl/src/avbVerifier/cpp/main.cpp
@@ -1,9 +1,16 @@
-/*
- * main.cpp
- * Copyright (C) 2020 yu <yu@X.local>
- *
- * Distributed under terms of the MIT license.
- */
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
 
 #include <cstdio>
 #include <iostream>
diff --git a/avbImpl/src/avbx/cpp/CfigAvbOps.cpp b/avbImpl/src/avbx/cpp/CfigAvbOps.cpp
index 5669a066..a1d4c1d4 100644
--- a/avbImpl/src/avbx/cpp/CfigAvbOps.cpp
+++ b/avbImpl/src/avbx/cpp/CfigAvbOps.cpp
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 //
 // Created by yu on 8/30/19.
 //
diff --git a/avbImpl/src/avbx/cpp/helper.cpp b/avbImpl/src/avbx/cpp/helper.cpp
index 95682156..bb67d1e6 100644
--- a/avbImpl/src/avbx/cpp/helper.cpp
+++ b/avbImpl/src/avbx/cpp/helper.cpp
@@ -1,9 +1,16 @@
-/*
- * helper.cpp
- * Copyright (C) 2020 yu <yu@X.local>
- *
- * Distributed under terms of the MIT license.
- */
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
 
 #include "helper.hpp"
 #include <sstream>
diff --git a/avbImpl/src/avbx/headers/CfigAvbOps.h b/avbImpl/src/avbx/headers/CfigAvbOps.h
index 9189dea8..315a7b93 100644
--- a/avbImpl/src/avbx/headers/CfigAvbOps.h
+++ b/avbImpl/src/avbx/headers/CfigAvbOps.h
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2021 yuyezhong@gmail.com
+ *
+ * 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.
+ */
+
 //
 // Created by yu on 8/30/19.
 //
diff --git a/avbImpl/src/avbx/headers/helper.hpp b/avbImpl/src/avbx/headers/helper.hpp
index a7d8bdd6..c0fafe07 100644
--- a/avbImpl/src/avbx/headers/helper.hpp
+++ b/avbImpl/src/avbx/headers/helper.hpp
@@ -1,9 +1,16 @@
-/*
- * helper.h
- * Copyright (C) 2020 yu <yu@X.local>
- *
- * Distributed under terms of the MIT license.
- */
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
 
 #ifndef HELPER_H
 #define HELPER_H
diff --git a/bbootimg/build.gradle.kts b/bbootimg/build.gradle.kts
index 14f49fd5..417e656b 100644
--- a/bbootimg/build.gradle.kts
+++ b/bbootimg/build.gradle.kts
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
diff --git a/bbootimg/src/main/kotlin/EnvironmentVerifier.kt b/bbootimg/src/main/kotlin/EnvironmentVerifier.kt
index 4dc7bfee..8715c6cc 100644
--- a/bbootimg/src/main/kotlin/EnvironmentVerifier.kt
+++ b/bbootimg/src/main/kotlin/EnvironmentVerifier.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig
 
 import org.apache.commons.exec.CommandLine
diff --git a/bbootimg/src/main/kotlin/avb/AVBInfo.kt b/bbootimg/src/main/kotlin/avb/AVBInfo.kt
index 4a75b3ee..08bfdad5 100644
--- a/bbootimg/src/main/kotlin/avb/AVBInfo.kt
+++ b/bbootimg/src/main/kotlin/avb/AVBInfo.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb
 
 import avb.blob.AuthBlob
diff --git a/bbootimg/src/main/kotlin/avb/Avb.kt b/bbootimg/src/main/kotlin/avb/Avb.kt
index 5414e718..6488c96c 100644
--- a/bbootimg/src/main/kotlin/avb/Avb.kt
+++ b/bbootimg/src/main/kotlin/avb/Avb.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig
 
 import avb.AVBInfo
diff --git a/bbootimg/src/main/kotlin/avb/alg/Algorithm.kt b/bbootimg/src/main/kotlin/avb/alg/Algorithm.kt
index 33dd92a5..03308fff 100644
--- a/bbootimg/src/main/kotlin/avb/alg/Algorithm.kt
+++ b/bbootimg/src/main/kotlin/avb/alg/Algorithm.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.alg
 
 data class Algorithm(
diff --git a/bbootimg/src/main/kotlin/avb/alg/Algorithms.kt b/bbootimg/src/main/kotlin/avb/alg/Algorithms.kt
index dfff8472..7fbeac60 100644
--- a/bbootimg/src/main/kotlin/avb/alg/Algorithms.kt
+++ b/bbootimg/src/main/kotlin/avb/alg/Algorithms.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.alg
 
 import cfig.io.Struct3
diff --git a/bbootimg/src/main/kotlin/avb/blob/AuthBlob.kt b/bbootimg/src/main/kotlin/avb/blob/AuthBlob.kt
index 87e6c1d4..a3885618 100644
--- a/bbootimg/src/main/kotlin/avb/blob/AuthBlob.kt
+++ b/bbootimg/src/main/kotlin/avb/blob/AuthBlob.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.blob
 
 import avb.alg.Algorithms
diff --git a/bbootimg/src/main/kotlin/avb/blob/AuxBlob.kt b/bbootimg/src/main/kotlin/avb/blob/AuxBlob.kt
index fde02ebc..00012059 100644
--- a/bbootimg/src/main/kotlin/avb/blob/AuxBlob.kt
+++ b/bbootimg/src/main/kotlin/avb/blob/AuxBlob.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.blob
 
 import avb.alg.Algorithm
diff --git a/bbootimg/src/main/kotlin/avb/blob/Footer.kt b/bbootimg/src/main/kotlin/avb/blob/Footer.kt
index 6a1a525a..eed3a72c 100644
--- a/bbootimg/src/main/kotlin/avb/blob/Footer.kt
+++ b/bbootimg/src/main/kotlin/avb/blob/Footer.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.blob
 
 import cfig.io.Struct3
diff --git a/bbootimg/src/main/kotlin/avb/blob/Header.kt b/bbootimg/src/main/kotlin/avb/blob/Header.kt
index d025d5be..b3c549cf 100644
--- a/bbootimg/src/main/kotlin/avb/blob/Header.kt
+++ b/bbootimg/src/main/kotlin/avb/blob/Header.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.blob
 
 import cfig.Avb
diff --git a/bbootimg/src/main/kotlin/avb/desc/ChainPartitionDescriptor.kt b/bbootimg/src/main/kotlin/avb/desc/ChainPartitionDescriptor.kt
index 4866a64e..8bfe48af 100644
--- a/bbootimg/src/main/kotlin/avb/desc/ChainPartitionDescriptor.kt
+++ b/bbootimg/src/main/kotlin/avb/desc/ChainPartitionDescriptor.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import cfig.Avb
diff --git a/bbootimg/src/main/kotlin/avb/desc/Descriptor.kt b/bbootimg/src/main/kotlin/avb/desc/Descriptor.kt
index e31dc023..8751b0dc 100644
--- a/bbootimg/src/main/kotlin/avb/desc/Descriptor.kt
+++ b/bbootimg/src/main/kotlin/avb/desc/Descriptor.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 @OptIn(ExperimentalUnsignedTypes::class)
diff --git a/bbootimg/src/main/kotlin/avb/desc/HashDescriptor.kt b/bbootimg/src/main/kotlin/avb/desc/HashDescriptor.kt
index 9b5f63d2..1bc3ca46 100644
--- a/bbootimg/src/main/kotlin/avb/desc/HashDescriptor.kt
+++ b/bbootimg/src/main/kotlin/avb/desc/HashDescriptor.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import avb.blob.Header
diff --git a/bbootimg/src/main/kotlin/avb/desc/HashTreeDescriptor.kt b/bbootimg/src/main/kotlin/avb/desc/HashTreeDescriptor.kt
index ff554b6e..c052babc 100644
--- a/bbootimg/src/main/kotlin/avb/desc/HashTreeDescriptor.kt
+++ b/bbootimg/src/main/kotlin/avb/desc/HashTreeDescriptor.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import avb.blob.Header
diff --git a/bbootimg/src/main/kotlin/avb/desc/KernelCmdlineDescriptor.kt b/bbootimg/src/main/kotlin/avb/desc/KernelCmdlineDescriptor.kt
index 4d4fb4a9..738ecf43 100644
--- a/bbootimg/src/main/kotlin/avb/desc/KernelCmdlineDescriptor.kt
+++ b/bbootimg/src/main/kotlin/avb/desc/KernelCmdlineDescriptor.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import cfig.helper.Helper
diff --git a/bbootimg/src/main/kotlin/avb/desc/PropertyDescriptor.kt b/bbootimg/src/main/kotlin/avb/desc/PropertyDescriptor.kt
index c34da6d1..1686449c 100644
--- a/bbootimg/src/main/kotlin/avb/desc/PropertyDescriptor.kt
+++ b/bbootimg/src/main/kotlin/avb/desc/PropertyDescriptor.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import cfig.helper.Helper
diff --git a/bbootimg/src/main/kotlin/avb/desc/UnknownDescriptor.kt b/bbootimg/src/main/kotlin/avb/desc/UnknownDescriptor.kt
index 0447609a..f066847a 100644
--- a/bbootimg/src/main/kotlin/avb/desc/UnknownDescriptor.kt
+++ b/bbootimg/src/main/kotlin/avb/desc/UnknownDescriptor.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import cfig.helper.Helper
diff --git a/bbootimg/src/main/kotlin/bootimg/Common.kt b/bbootimg/src/main/kotlin/bootimg/Common.kt
index 8a158aad..76cfa2b0 100644
--- a/bbootimg/src/main/kotlin/bootimg/Common.kt
+++ b/bbootimg/src/main/kotlin/bootimg/Common.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg
 
 import cfig.EnvironmentVerifier
diff --git a/bbootimg/src/main/kotlin/bootimg/Signer.kt b/bbootimg/src/main/kotlin/bootimg/Signer.kt
index f3500f99..86c9505b 100644
--- a/bbootimg/src/main/kotlin/bootimg/Signer.kt
+++ b/bbootimg/src/main/kotlin/bootimg/Signer.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg
 
 import avb.AVBInfo
diff --git a/bbootimg/src/main/kotlin/bootimg/cpio/AndroidCpio.kt b/bbootimg/src/main/kotlin/bootimg/cpio/AndroidCpio.kt
index bc1706ec..df00f53d 100644
--- a/bbootimg/src/main/kotlin/bootimg/cpio/AndroidCpio.kt
+++ b/bbootimg/src/main/kotlin/bootimg/cpio/AndroidCpio.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.cpio
 
 import cfig.helper.Helper
diff --git a/bbootimg/src/main/kotlin/bootimg/cpio/AndroidCpioEntry.kt b/bbootimg/src/main/kotlin/bootimg/cpio/AndroidCpioEntry.kt
index 8455d73a..0afbd5bb 100644
--- a/bbootimg/src/main/kotlin/bootimg/cpio/AndroidCpioEntry.kt
+++ b/bbootimg/src/main/kotlin/bootimg/cpio/AndroidCpioEntry.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.cpio
 
 import cfig.helper.Helper
diff --git a/bbootimg/src/main/kotlin/bootimg/cpio/NewAsciiCpio.kt b/bbootimg/src/main/kotlin/bootimg/cpio/NewAsciiCpio.kt
index 20f8658b..55e57e45 100644
--- a/bbootimg/src/main/kotlin/bootimg/cpio/NewAsciiCpio.kt
+++ b/bbootimg/src/main/kotlin/bootimg/cpio/NewAsciiCpio.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.cpio
 
 import cfig.io.Struct3
diff --git a/bbootimg/src/main/kotlin/bootimg/v2/BootHeaderV2.kt b/bbootimg/src/main/kotlin/bootimg/v2/BootHeaderV2.kt
index b194c38e..edc068c8 100644
--- a/bbootimg/src/main/kotlin/bootimg/v2/BootHeaderV2.kt
+++ b/bbootimg/src/main/kotlin/bootimg/v2/BootHeaderV2.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.v2
 
 import cfig.helper.Helper
diff --git a/bbootimg/src/main/kotlin/bootimg/v2/BootV2.kt b/bbootimg/src/main/kotlin/bootimg/v2/BootV2.kt
index 509ed6ba..0bd326e5 100644
--- a/bbootimg/src/main/kotlin/bootimg/v2/BootV2.kt
+++ b/bbootimg/src/main/kotlin/bootimg/v2/BootV2.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.v2
 
 import cfig.Avb
diff --git a/bbootimg/src/main/kotlin/bootimg/v3/BootHeaderV3.kt b/bbootimg/src/main/kotlin/bootimg/v3/BootHeaderV3.kt
index 4cabbee1..001a394d 100644
--- a/bbootimg/src/main/kotlin/bootimg/v3/BootHeaderV3.kt
+++ b/bbootimg/src/main/kotlin/bootimg/v3/BootHeaderV3.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.v3
 
 import cfig.bootimg.Common
diff --git a/bbootimg/src/main/kotlin/bootimg/v3/BootV3.kt b/bbootimg/src/main/kotlin/bootimg/v3/BootV3.kt
index 357aa24a..7e47feb1 100644
--- a/bbootimg/src/main/kotlin/bootimg/v3/BootV3.kt
+++ b/bbootimg/src/main/kotlin/bootimg/v3/BootV3.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.v3
 
 import cfig.Avb
diff --git a/bbootimg/src/main/kotlin/bootimg/v3/VendorBoot.kt b/bbootimg/src/main/kotlin/bootimg/v3/VendorBoot.kt
index b8d9e9cc..94ea75ba 100644
--- a/bbootimg/src/main/kotlin/bootimg/v3/VendorBoot.kt
+++ b/bbootimg/src/main/kotlin/bootimg/v3/VendorBoot.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.v3
 
 import cfig.Avb
diff --git a/bbootimg/src/main/kotlin/bootimg/v3/VendorBootHeader.kt b/bbootimg/src/main/kotlin/bootimg/v3/VendorBootHeader.kt
index 90dae450..43123696 100644
--- a/bbootimg/src/main/kotlin/bootimg/v3/VendorBootHeader.kt
+++ b/bbootimg/src/main/kotlin/bootimg/v3/VendorBootHeader.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootimg.v3
 
 import cfig.io.Struct3
diff --git a/bbootimg/src/main/kotlin/bootloader_message/BootControl.kt b/bbootimg/src/main/kotlin/bootloader_message/BootControl.kt
index 9b9d0e1c..6985fa4a 100644
--- a/bbootimg/src/main/kotlin/bootloader_message/BootControl.kt
+++ b/bbootimg/src/main/kotlin/bootloader_message/BootControl.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootloader_message
 
 class BootControl {
diff --git a/bbootimg/src/main/kotlin/bootloader_message/BootloaderMsg.kt b/bbootimg/src/main/kotlin/bootloader_message/BootloaderMsg.kt
index 70c728b4..2f62cc3f 100644
--- a/bbootimg/src/main/kotlin/bootloader_message/BootloaderMsg.kt
+++ b/bbootimg/src/main/kotlin/bootloader_message/BootloaderMsg.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootloader_message
 
 import cfig.io.Struct3
diff --git a/bbootimg/src/main/kotlin/bootloader_message/BootloaderMsgAB.kt b/bbootimg/src/main/kotlin/bootloader_message/BootloaderMsgAB.kt
index b176bffb..df5c427b 100644
--- a/bbootimg/src/main/kotlin/bootloader_message/BootloaderMsgAB.kt
+++ b/bbootimg/src/main/kotlin/bootloader_message/BootloaderMsgAB.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootloader_message
 
 import cfig.io.Struct3
diff --git a/bbootimg/src/main/kotlin/bootloader_message/VirtualABMsg.kt b/bbootimg/src/main/kotlin/bootloader_message/VirtualABMsg.kt
index 6e739af2..21d1bd8f 100644
--- a/bbootimg/src/main/kotlin/bootloader_message/VirtualABMsg.kt
+++ b/bbootimg/src/main/kotlin/bootloader_message/VirtualABMsg.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.bootloader_message
 
 import cfig.io.Struct3
diff --git a/bbootimg/src/main/kotlin/dtb_util/DTC.kt b/bbootimg/src/main/kotlin/dtb_util/DTC.kt
index 7a05d121..65f40b6a 100644
--- a/bbootimg/src/main/kotlin/dtb_util/DTC.kt
+++ b/bbootimg/src/main/kotlin/dtb_util/DTC.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.dtb_util
 
 import org.apache.commons.exec.CommandLine
diff --git a/bbootimg/src/main/kotlin/init/Reboot.kt b/bbootimg/src/main/kotlin/init/Reboot.kt
index 7001931d..bbed6fbe 100644
--- a/bbootimg/src/main/kotlin/init/Reboot.kt
+++ b/bbootimg/src/main/kotlin/init/Reboot.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.init
 
 import cfig.bootloader_message.BootloaderMsg
diff --git a/bbootimg/src/main/kotlin/kernel_util/KernelExtractor.kt b/bbootimg/src/main/kotlin/kernel_util/KernelExtractor.kt
index e1bb47bd..f4eab1df 100644
--- a/bbootimg/src/main/kotlin/kernel_util/KernelExtractor.kt
+++ b/bbootimg/src/main/kotlin/kernel_util/KernelExtractor.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.kernel_util
 
 import cfig.EnvironmentVerifier
diff --git a/bbootimg/src/main/kotlin/packable/BootImgParser.kt b/bbootimg/src/main/kotlin/packable/BootImgParser.kt
index 19c951c4..9d62f85d 100644
--- a/bbootimg/src/main/kotlin/packable/BootImgParser.kt
+++ b/bbootimg/src/main/kotlin/packable/BootImgParser.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.packable
 
 import avb.blob.Footer
diff --git a/bbootimg/src/main/kotlin/packable/DtboParser.kt b/bbootimg/src/main/kotlin/packable/DtboParser.kt
index 217ff6cc..84803759 100644
--- a/bbootimg/src/main/kotlin/packable/DtboParser.kt
+++ b/bbootimg/src/main/kotlin/packable/DtboParser.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.packable
 
 import avb.blob.Footer
diff --git a/bbootimg/src/main/kotlin/packable/IPackable.kt b/bbootimg/src/main/kotlin/packable/IPackable.kt
index b84a3496..4c57ff36 100644
--- a/bbootimg/src/main/kotlin/packable/IPackable.kt
+++ b/bbootimg/src/main/kotlin/packable/IPackable.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.packable
 
 import cfig.Avb
diff --git a/bbootimg/src/main/kotlin/packable/PackableLauncher.kt b/bbootimg/src/main/kotlin/packable/PackableLauncher.kt
index 58510733..9cbcc80d 100644
--- a/bbootimg/src/main/kotlin/packable/PackableLauncher.kt
+++ b/bbootimg/src/main/kotlin/packable/PackableLauncher.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.packable
 
 import cfig.sparse_util.SparseImgParser
diff --git a/bbootimg/src/main/kotlin/packable/VBMetaParser.kt b/bbootimg/src/main/kotlin/packable/VBMetaParser.kt
index 2cc8fe78..c2d7864d 100644
--- a/bbootimg/src/main/kotlin/packable/VBMetaParser.kt
+++ b/bbootimg/src/main/kotlin/packable/VBMetaParser.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.packable
 
 import cfig.Avb
diff --git a/bbootimg/src/main/kotlin/packable/VendorBootParser.kt b/bbootimg/src/main/kotlin/packable/VendorBootParser.kt
index 1ef8daf6..495de6e2 100644
--- a/bbootimg/src/main/kotlin/packable/VendorBootParser.kt
+++ b/bbootimg/src/main/kotlin/packable/VendorBootParser.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.packable
 
 import cfig.Avb
diff --git a/bbootimg/src/main/kotlin/sparse_util/SparseImgParser.kt b/bbootimg/src/main/kotlin/sparse_util/SparseImgParser.kt
index 767b6fb3..b11e3d46 100644
--- a/bbootimg/src/main/kotlin/sparse_util/SparseImgParser.kt
+++ b/bbootimg/src/main/kotlin/sparse_util/SparseImgParser.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.sparse_util
 
 import cfig.EnvironmentVerifier
diff --git a/bbootimg/src/test/kotlin/AvbTest.kt b/bbootimg/src/test/kotlin/AvbTest.kt
index 7919f931..b97c7c41 100644
--- a/bbootimg/src/test/kotlin/AvbTest.kt
+++ b/bbootimg/src/test/kotlin/AvbTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 import avb.desc.UnknownDescriptor
 import avb.desc.HashDescriptor
 import org.apache.commons.codec.binary.Hex
diff --git a/bbootimg/src/test/kotlin/CVEtest.kt b/bbootimg/src/test/kotlin/CVEtest.kt
index 6a064ff9..3f18ede8 100644
--- a/bbootimg/src/test/kotlin/CVEtest.kt
+++ b/bbootimg/src/test/kotlin/CVEtest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 import org.junit.Test
 import java.math.BigInteger
 import java.util.concurrent.Callable
diff --git a/bbootimg/src/test/kotlin/EnvironmentVerifierTest.kt b/bbootimg/src/test/kotlin/EnvironmentVerifierTest.kt
index 05e14d5f..9fba7713 100644
--- a/bbootimg/src/test/kotlin/EnvironmentVerifierTest.kt
+++ b/bbootimg/src/test/kotlin/EnvironmentVerifierTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 import cfig.EnvironmentVerifier
 import org.junit.Test
 
diff --git a/bbootimg/src/test/kotlin/KeyUtilTest.kt b/bbootimg/src/test/kotlin/KeyUtilTest.kt
index d32c5483..5e513ee4 100644
--- a/bbootimg/src/test/kotlin/KeyUtilTest.kt
+++ b/bbootimg/src/test/kotlin/KeyUtilTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 import avb.alg.Algorithms
 import cfig.helper.Helper
 import cfig.helper.KeyHelper
diff --git a/bbootimg/src/test/kotlin/ReadTest.kt b/bbootimg/src/test/kotlin/ReadTest.kt
index b833528f..e3a507a6 100644
--- a/bbootimg/src/test/kotlin/ReadTest.kt
+++ b/bbootimg/src/test/kotlin/ReadTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 import org.junit.Test
 import java.io.File
 import java.util.regex.Matcher
diff --git a/bbootimg/src/test/kotlin/avb/BlobTest.kt b/bbootimg/src/test/kotlin/avb/BlobTest.kt
index 3740a7a9..3343f08c 100644
--- a/bbootimg/src/test/kotlin/avb/BlobTest.kt
+++ b/bbootimg/src/test/kotlin/avb/BlobTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb
 
 import avb.alg.Algorithms
diff --git a/bbootimg/src/test/kotlin/avb/FooterTest.kt b/bbootimg/src/test/kotlin/avb/FooterTest.kt
index e8846370..d417ec48 100644
--- a/bbootimg/src/test/kotlin/avb/FooterTest.kt
+++ b/bbootimg/src/test/kotlin/avb/FooterTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb
 
 import avb.blob.Footer
diff --git a/bbootimg/src/test/kotlin/avb/HeaderTest.kt b/bbootimg/src/test/kotlin/avb/HeaderTest.kt
index ee28ed68..7cd0e03f 100644
--- a/bbootimg/src/test/kotlin/avb/HeaderTest.kt
+++ b/bbootimg/src/test/kotlin/avb/HeaderTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb
 
 import avb.blob.Header
diff --git a/bbootimg/src/test/kotlin/avb/alg/AlgorithmTest.kt b/bbootimg/src/test/kotlin/avb/alg/AlgorithmTest.kt
index 060d0f6d..99d448bd 100644
--- a/bbootimg/src/test/kotlin/avb/alg/AlgorithmTest.kt
+++ b/bbootimg/src/test/kotlin/avb/alg/AlgorithmTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.alg
 
 import org.junit.Test
diff --git a/bbootimg/src/test/kotlin/avb/alg/AlgorithmsTest.kt b/bbootimg/src/test/kotlin/avb/alg/AlgorithmsTest.kt
index 2fcf2b2e..68c67976 100644
--- a/bbootimg/src/test/kotlin/avb/alg/AlgorithmsTest.kt
+++ b/bbootimg/src/test/kotlin/avb/alg/AlgorithmsTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.alg
 
 import cfig.helper.Helper
diff --git a/bbootimg/src/test/kotlin/avb/desc/HashDescriptorTest.kt b/bbootimg/src/test/kotlin/avb/desc/HashDescriptorTest.kt
index 63f26048..db1a4979 100644
--- a/bbootimg/src/test/kotlin/avb/desc/HashDescriptorTest.kt
+++ b/bbootimg/src/test/kotlin/avb/desc/HashDescriptorTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import org.apache.commons.codec.binary.Hex
diff --git a/bbootimg/src/test/kotlin/avb/desc/HashTreeDescriptorTest.kt b/bbootimg/src/test/kotlin/avb/desc/HashTreeDescriptorTest.kt
index 70fa27a3..026062f0 100644
--- a/bbootimg/src/test/kotlin/avb/desc/HashTreeDescriptorTest.kt
+++ b/bbootimg/src/test/kotlin/avb/desc/HashTreeDescriptorTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import cfig.helper.KeyHelper2
diff --git a/bbootimg/src/test/kotlin/avb/desc/KernelCmdlineDescriptorTest.kt b/bbootimg/src/test/kotlin/avb/desc/KernelCmdlineDescriptorTest.kt
index 703f7e6d..7188d2d0 100644
--- a/bbootimg/src/test/kotlin/avb/desc/KernelCmdlineDescriptorTest.kt
+++ b/bbootimg/src/test/kotlin/avb/desc/KernelCmdlineDescriptorTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import org.apache.commons.codec.binary.Hex
diff --git a/bbootimg/src/test/kotlin/avb/desc/UnknownDescriptorTest.kt b/bbootimg/src/test/kotlin/avb/desc/UnknownDescriptorTest.kt
index 660de118..287cf9ab 100644
--- a/bbootimg/src/test/kotlin/avb/desc/UnknownDescriptorTest.kt
+++ b/bbootimg/src/test/kotlin/avb/desc/UnknownDescriptorTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 avb.desc
 
 import org.apache.commons.codec.binary.Hex
diff --git a/bbootimg/src/test/kotlin/bootimg/AndroidCpioEntryTest.kt b/bbootimg/src/test/kotlin/bootimg/AndroidCpioEntryTest.kt
index ac3cb80b..d01b6457 100644
--- a/bbootimg/src/test/kotlin/bootimg/AndroidCpioEntryTest.kt
+++ b/bbootimg/src/test/kotlin/bootimg/AndroidCpioEntryTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 bootimg
 
 import cfig.bootimg.cpio.AndroidCpio
diff --git a/bbootimg/src/test/kotlin/bootloader_message/BootloaderMsgTest.kt b/bbootimg/src/test/kotlin/bootloader_message/BootloaderMsgTest.kt
index ec2b55fc..cd7969eb 100644
--- a/bbootimg/src/test/kotlin/bootloader_message/BootloaderMsgTest.kt
+++ b/bbootimg/src/test/kotlin/bootloader_message/BootloaderMsgTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 bootloader_message
 
 import cfig.bootimg.Common.Companion.deleleIfExists
diff --git a/bbootimg/src/test/kotlin/init/RebootTest.kt b/bbootimg/src/test/kotlin/init/RebootTest.kt
index 5d795131..463cd0d2 100644
--- a/bbootimg/src/test/kotlin/init/RebootTest.kt
+++ b/bbootimg/src/test/kotlin/init/RebootTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 init
 
 import org.junit.Test
diff --git a/helper/build.gradle.kts b/helper/build.gradle.kts
index c687fff4..ca0992f9 100644
--- a/helper/build.gradle.kts
+++ b/helper/build.gradle.kts
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
diff --git a/helper/src/main/kotlin/cfig/helper/AndroidHelper.kt b/helper/src/main/kotlin/cfig/helper/AndroidHelper.kt
index 4a3b0045..367b7ad6 100644
--- a/helper/src/main/kotlin/cfig/helper/AndroidHelper.kt
+++ b/helper/src/main/kotlin/cfig/helper/AndroidHelper.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.helper
 
 import org.apache.commons.exec.CommandLine
diff --git a/helper/src/main/kotlin/cfig/helper/Helper.kt b/helper/src/main/kotlin/cfig/helper/Helper.kt
index f44c4127..a8398d6d 100644
--- a/helper/src/main/kotlin/cfig/helper/Helper.kt
+++ b/helper/src/main/kotlin/cfig/helper/Helper.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.helper
 
 import cfig.io.Struct3
diff --git a/helper/src/main/kotlin/cfig/helper/KeyHelper.kt b/helper/src/main/kotlin/cfig/helper/KeyHelper.kt
index 431f416c..97a1a6c6 100644
--- a/helper/src/main/kotlin/cfig/helper/KeyHelper.kt
+++ b/helper/src/main/kotlin/cfig/helper/KeyHelper.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.helper
 
 import cfig.io.Struct3
diff --git a/helper/src/main/kotlin/cfig/helper/KeyHelper2.kt b/helper/src/main/kotlin/cfig/helper/KeyHelper2.kt
index 1330c8eb..40a43a9b 100644
--- a/helper/src/main/kotlin/cfig/helper/KeyHelper2.kt
+++ b/helper/src/main/kotlin/cfig/helper/KeyHelper2.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.helper
 
 import org.apache.commons.exec.CommandLine
diff --git a/helper/src/main/kotlin/cfig/helper/OpenSslHelper.kt b/helper/src/main/kotlin/cfig/helper/OpenSslHelper.kt
index bc93c96b..eb60d216 100644
--- a/helper/src/main/kotlin/cfig/helper/OpenSslHelper.kt
+++ b/helper/src/main/kotlin/cfig/helper/OpenSslHelper.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.helper
 
 import org.apache.commons.exec.CommandLine
diff --git a/helper/src/main/kotlin/cfig/helper/ZipHelper.kt b/helper/src/main/kotlin/cfig/helper/ZipHelper.kt
index 52244544..0085c464 100644
--- a/helper/src/main/kotlin/cfig/helper/ZipHelper.kt
+++ b/helper/src/main/kotlin/cfig/helper/ZipHelper.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.helper
 
 import cfig.helper.Helper.Companion.check_call
diff --git a/helper/src/main/kotlin/cfig/io/Struct3.kt b/helper/src/main/kotlin/cfig/io/Struct3.kt
index e9d21fcc..3cdc008b 100644
--- a/helper/src/main/kotlin/cfig/io/Struct3.kt
+++ b/helper/src/main/kotlin/cfig/io/Struct3.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.io
 
 import cfig.io.Struct3.ByteArrayExt.Companion.toCString
diff --git a/helper/src/test/kotlin/cfig/helper/OpenSslHelperTest.kt b/helper/src/test/kotlin/cfig/helper/OpenSslHelperTest.kt
index bfaa5680..68dc8ba2 100644
--- a/helper/src/test/kotlin/cfig/helper/OpenSslHelperTest.kt
+++ b/helper/src/test/kotlin/cfig/helper/OpenSslHelperTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.helper
 
 import cfig.helper.OpenSslHelper.Companion.decodePem
diff --git a/helper/src/test/kotlin/cfig/helper/ZipHelperTest.kt b/helper/src/test/kotlin/cfig/helper/ZipHelperTest.kt
index 46bf771f..87d5bd32 100644
--- a/helper/src/test/kotlin/cfig/helper/ZipHelperTest.kt
+++ b/helper/src/test/kotlin/cfig/helper/ZipHelperTest.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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 cfig.helper
 
 import cfig.helper.ZipHelper.Companion.dumpEntry
diff --git a/helper/src/test/kotlin/cfig/io/Struct3Test.kt b/helper/src/test/kotlin/cfig/io/Struct3Test.kt
index c69934f7..aa04eec5 100644
--- a/helper/src/test/kotlin/cfig/io/Struct3Test.kt
+++ b/helper/src/test/kotlin/cfig/io/Struct3Test.kt
@@ -1,3 +1,17 @@
+// Copyright 2021 yuyezhong@gmail.com
+//
+// 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.
+
 import cfig.helper.Helper
 import cfig.io.Struct3
 import com.fasterxml.jackson.databind.ObjectMapper