1 files changed, 2 insertions, 0 deletions
diff --git a/sha3.c b/sha3.c
index 931ae02..2fdbf05 100644
--- a/sha3.c
+++ b/sha3.c
@@ -1,3 +1,5 @@
+/* Copied from https://github.com/mjosaarinen/tiny_sha3 */
+
 // sha3.c
 // 19-Nov-11  Markku-Juhani O. Saarinen <mjos@iki.fi>