diff --git a/psoutils/src/compression.rs b/psoutils/src/compression.rs
index bccfa46..0193aee 100644
--- a/psoutils/src/compression.rs
+++ b/psoutils/src/compression.rs
@@ -1,3 +1,9 @@
+/*
+ * The contents of this module are ported from the Fuzziqer "newserv" project with some minor
+ * alterations by me.
+ * https://github.com/fuzziqersoftware/newserv (Compression.cc + Compression.hh)
+ */
+
 use std::ffi::c_void;
 
 use thiserror::Error;
diff --git a/psoutils/src/encryption.rs b/psoutils/src/encryption.rs
index f59a576..58a924f 100644
--- a/psoutils/src/encryption.rs
+++ b/psoutils/src/encryption.rs
@@ -1,3 +1,9 @@
+/*
+ * The contents of this module are ported from the Fuzziqer "newserv" project with some minor
+ * alterations by me.
+ * https://github.com/fuzziqersoftware/newserv (PSOEncryption.cc + PSOEncryption.hh)
+ */
+
 const PC_STREAM_LENGTH: usize = 57;
 const GC_STREAM_LENGTH: usize = 521;