From 9b20a0de164a1104a7fb19879443255b52b34333 Mon Sep 17 00:00:00 2001
From: Pedro Alvarez <pedro.alvarez@softwareradiosystems.com>
Date: Mon, 9 Sep 2019 19:06:52 +0100
Subject: [PATCH] Added comment to zuc.cc and zuc.h

---
 lib/include/srslte/common/zuc.h | 12 +++++++++++-
 lib/src/common/zuc.cc           |  8 ++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/lib/include/srslte/common/zuc.h b/lib/include/srslte/common/zuc.h
index 8c8f81fad..7385ea601 100644
--- a/lib/include/srslte/common/zuc.h
+++ b/lib/include/srslte/common/zuc.h
@@ -1,3 +1,13 @@
+/*---------------------------------------------------------
+
+    zuc.h
+    Adapted from ETSI/SAGE specifications:
+    "Specification of the 3GPP Confidentiality
+    and Integrity Algorithms 128-EEA3 & 128-EIA3.
+    Document 2: ZUC Specification"
+
+---------------------------------------------------------*/
+
 #ifndef SRSLTE_ZUC_H
 #define SRSLTE_ZUC_H
 
@@ -35,4 +45,4 @@ typedef struct {
 void zuc_initialize(zuc_state_t* state, u8* k, u8* iv);
 void zuc_generate_keystream(zuc_state_t* state, int key_stream_len, u32* p_keystream);
 
-#endif // SRSLTE_ZUC_H
\ No newline at end of file
+#endif // SRSLTE_ZUC_H
diff --git a/lib/src/common/zuc.cc b/lib/src/common/zuc.cc
index 9b3e335c5..0823379c0 100644
--- a/lib/src/common/zuc.cc
+++ b/lib/src/common/zuc.cc
@@ -1,4 +1,12 @@
+/*---------------------------------------------------------
 
+    zuc.cc
+    Adapted from ETSI/SAGE specifications:
+    "Specification of the 3GPP Confidentiality
+    and Integrity Algorithms 128-EEA3 & 128-EIA3.
+    Document 2: ZUC Specification"
+
+---------------------------------------------------------*/
 
 #include "srslte/common/zuc.h"