--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Interface header: HMAC SHA256 code
+
+ Copyright (C) Andrew Tridgell 2008
+
+ based on hmacsha1.h which is:
+
+ Copyright (C) Stefan Metzmacher 2006
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _HMAC_SHA256_H
+
+struct HMACSHA256Context {
+ SHA256_CTX ctx;
+ uint8_t k_ipad[65];
+ uint8_t k_opad[65];
+};
+
+void hmac_sha256_init(const uint8_t *key, size_t key_len, struct HMACSHA256Context *ctx);
+void hmac_sha256_update(const uint8_t *data, size_t data_len, struct HMACSHA256Context *ctx);
+void hmac_sha256_final(uint8_t digest[20], struct HMACSHA256Context *ctx);
+
+#endif /* _HMAC_SHA256_H */