diff --git a/APDU.hpp b/APDU.hpp
index 1285963..1f7e2b7 100644
--- a/APDU.hpp
+++ b/APDU.hpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#pragma once
enum APDU : uint8_t
diff --git a/Base64.hpp b/Base64.hpp
index ea61aeb..b26818d 100644
--- a/Base64.hpp
+++ b/Base64.hpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#pragma once
template
diff --git a/Base64.tpp b/Base64.tpp
index 45d2616..dbc0be1 100644
--- a/Base64.tpp
+++ b/Base64.tpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#include "Base64.hpp"
#include
#include "cpp-base64/base64.h"
diff --git a/Certificates.cpp b/Certificates.cpp
index 63b75b5..116eaa7 100644
--- a/Certificates.cpp
+++ b/Certificates.cpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#include "Certificates.hpp"
//You may not actually want to use these values -
diff --git a/Certificates.hpp b/Certificates.hpp
index c29ec3c..8da2396 100644
--- a/Certificates.hpp
+++ b/Certificates.hpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#pragma once
#include
diff --git a/Channel.cpp b/Channel.cpp
index b3eb0de..3d35749 100644
--- a/Channel.cpp
+++ b/Channel.cpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#include "Channel.hpp"
#include
#include "u2f.hpp"
diff --git a/Channel.hpp b/Channel.hpp
index ffd17e9..61c454f 100644
--- a/Channel.hpp
+++ b/Channel.hpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#pragma once
#include
#include
diff --git a/Controller.cpp b/Controller.cpp
index a28a450..d3c9205 100644
--- a/Controller.cpp
+++ b/Controller.cpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#include "Controller.hpp"
#include "u2f.hpp"
#include
diff --git a/Controller.hpp b/Controller.hpp
index 29dda50..f365ebd 100644
--- a/Controller.hpp
+++ b/Controller.hpp
@@ -1,3 +1,21 @@
+/*
+U2FDevice - A program to allow Raspberry Pi Zeros to act as U2F tokens
+Copyright (C) 2018 Michael Kuc
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see .
+*/
+
#pragma once
#include