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      1 /*
      2  * SHA256 hash implementation and interface functions
      3  * Copyright (c) 2003-2006, Jouni Malinen <j (at) w1.fi>
      4  *
      5  * This program is free software; you can redistribute it and/or modify
      6  * it under the terms of the GNU General Public License version 2 as
      7  * published by the Free Software Foundation.
      8  *
      9  * Alternatively, this software may be distributed under the terms of BSD
     10  * license.
     11  *
     12  * See README and COPYING for more details.
     13  */
     14 
     15 #ifndef SHA256_H
     16 #define SHA256_H
     17 
     18 #define SHA256_MAC_LEN 32
     19 
     20 void hmac_sha256_vector(const u8 *key, size_t key_len, size_t num_elem,
     21 		      const u8 *addr[], const size_t *len, u8 *mac);
     22 void hmac_sha256(const u8 *key, size_t key_len, const u8 *data,
     23 		 size_t data_len, u8 *mac);
     24 void sha256_prf(const u8 *key, size_t key_len, const char *label,
     25 	      const u8 *data, size_t data_len, u8 *buf, size_t buf_len);
     26 
     27 #endif /* SHA256_H */
     28