stun/sha1.h

   1 /*
   2  * SHA1 hash implementation and interface functions
   3  * Copyright (c) 2003-2005, Jouni Malinen <j@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 SHA1_H
  16 #define SHA1_H
  17
  18 #include <stdint.h>
  19 #include <stddef.h>
  20
  21 #define SHA1_MAC_LEN 20
  22
  23 struct SHA1Context {
  24   uint32_t state[5];
  25   uint32_t count[2];
  26   unsigned char buffer[64];
  27 };
  28
  29 typedef struct SHA1Context SHA1_CTX;
  30
  31 void SHA1Init(SHA1_CTX *context);
  32 void SHA1Update(SHA1_CTX *context, const void *data, uint32_t len);
  33 void SHA1Final(unsigned char digest[20], SHA1_CTX *context);
  34
  35 struct HMACContext {
  36   SHA1_CTX context;
  37   uint8_t key[64];
  38   size_t key_len;
  39 };
  40 typedef struct HMACContext HMAC_CTX;
  41
  42 void HMACInit(HMAC_CTX *context, const uint8_t *key, size_t key_len);
  43 void HMACUpdate(HMAC_CTX *context, const void *data, uint32_t len);
  44 void HMACFinal(unsigned char digest[20], HMAC_CTX *context);
  45
  46 void sha1_vector(size_t num_elem, const uint8_t *addr[], const size_t *len,
  47     uint8_t *mac);
  48 void hmac_sha1_vector(const uint8_t *key, size_t key_len, size_t num_elem,
  49     const uint8_t *addr[], const size_t *len, uint8_t *mac);
  50 void hmac_sha1(const uint8_t *key, size_t key_len,
  51     const uint8_t *data, size_t data_len, uint8_t *mac);
  52 void sha1_prf(const uint8_t *key, size_t key_len, const char *label,
  53     const uint8_t *data, size_t data_len, uint8_t *buf, size_t buf_len);
  54
  55 #endif /* SHA1_H */