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authorMatthias Schiffer <mschiffer@universe-factory.net>2014-05-29 05:00:11 +0200
committerMatthias Schiffer <mschiffer@universe-factory.net>2014-05-29 05:00:11 +0200
commit2fe678653b7dd9f61dbbcd5e7d862360882bd7e8 (patch)
tree38c9dabad94845e848373b15788fcd7ae089218e /src/hkdf_sha256.h
parentefcafca969d2e789cdf106609b04a86ef9b53a3d (diff)
downloadfastd-2fe678653b7dd9f61dbbcd5e7d862360882bd7e8.tar
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Document *everything*
Diffstat (limited to 'src/hkdf_sha256.h')
-rw-r--r--src/hkdf_sha256.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/hkdf_sha256.h b/src/hkdf_sha256.h
index 94b726e..5de543c 100644
--- a/src/hkdf_sha256.h
+++ b/src/hkdf_sha256.h
@@ -23,6 +23,12 @@
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+/**
+ \file
+
+ An implementation of the HMAC-based Key Derivation Function (RFC 5869) using HMAC-SHA256
+*/
+
#pragma once
@@ -30,6 +36,7 @@
#include "types.h"
+/** The HKDF-SHA256 extraction function (which is just HMAC-SHA256) */
static inline void fastd_hkdf_sha256_extract(fastd_sha256_t *out, const uint32_t salt[FASTD_HMACSHA256_KEY_WORDS], const uint32_t *in, size_t len) {
fastd_hmacsha256(out, salt, in, len);
}