From b8c2118434877d0c42ba0d1b856db3fda546777a Mon Sep 17 00:00:00 2001
From: Peter Eckersley <pde@eff.org>
Date: Wed, 16 Dec 2015 14:19:22 -0800
Subject: [PATCH] Add explanatory comment

---
 tools/half-sign.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/half-sign.c b/tools/half-sign.c
index 561fa22be..454201799 100644
--- a/tools/half-sign.c
+++ b/tools/half-sign.c
@@ -6,6 +6,9 @@
 #include <openssl/rsa.h>
 #include <openssl/pem.h>
 
+// This program can be used to perform RSA public key signatures given only
+// the hash of the file to be signed as input.
+
 // Sign with SHA1
 #define HASH_SIZE 20