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-rw-r--r--src/common/crypto_s2k.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/common/crypto_s2k.c b/src/common/crypto_s2k.c
index 99f3b2ebbc..6dd791e018 100644
--- a/src/common/crypto_s2k.c
+++ b/src/common/crypto_s2k.c
@@ -4,6 +4,12 @@
* Copyright (c) 2007-2015, The Tor Project, Inc. */
/* See LICENSE for licensing information */
+/**
+ * \file crypto_s2k.c
+ *
+ * \brief Functions for deriving keys from human-readable passphrases.
+ */
+
#define CRYPTO_S2K_PRIVATE
#include "crypto.h"