From d848d6ffbaf715c752da93312f2fce395ffc03b3 Mon Sep 17 00:00:00 2001
From: Jack Lloyd <jack@randombit.net>
Date: Thu, 28 Sep 2017 11:17:56 -0400
Subject: Doxygen comment

[ci skip]
---
 src/lib/kdf/hkdf/hkdf.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/lib/kdf/hkdf/hkdf.h b/src/lib/kdf/hkdf/hkdf.h
index 7d2b7f8b2..cd2b13dd8 100644
--- a/src/lib/kdf/hkdf/hkdf.h
+++ b/src/lib/kdf/hkdf/hkdf.h
@@ -88,8 +88,14 @@ class BOTAN_PUBLIC_API(2,0) HKDF_Expand final : public KDF
 
 /**
 * HKDF-Expand-Label from TLS 1.3/QUIC
+* @param hash_fn the hash to use
+* @param secret the secret bits
+* @param secret_len the length of secret
 * @param label the full label (no "TLS 1.3, " or "tls13 " prefix
 *  is applied)
+* @param hash_val the previous hash value (used for chaining, may be empty)
+* @param hash_val_len the length of hash_val
+* @param length the desired output length
 */
 secure_vector<uint8_t>
 BOTAN_PUBLIC_API(2,3) hkdf_expand_label(
-- 
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