rc4: mark key as const
Key data is never written so the parameter can be const, which allows
putting fixed keys in .rodata.
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/include/rc4.h b/include/rc4.h
index c1ff134..d1257f2 100644
--- a/include/rc4.h
+++ b/include/rc4.h
@@ -15,6 +15,6 @@
* @len: Length of buffer in bytes
* @key: 16-byte key to use
*/
-void rc4_encode(unsigned char *buf, unsigned int len, unsigned char key[16]);
+void rc4_encode(unsigned char *buf, unsigned int len, const unsigned char key[16]);
#endif