src/lib/crypt_ops/crypto_hkdf.h

   1 /* Copyright (c) 2001, Matej Pfajfar.
   2  * Copyright (c) 2001-2004, Roger Dingledine.
   3  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   4  * Copyright (c) 2007-2021, The Tor Project, Inc. */
   5 /* See LICENSE for licensing information */
   6
   7 /**
   8  * \file crypto_hkdf.h
   9  *
  10  * \brief Headers for crypto_hkdf.h
  11  **/
  12
  13 #ifndef TOR_CRYPTO_HKDF_H
  14 #define TOR_CRYPTO_HKDF_H
  15
  16 #include "lib/cc/torint.h"
  17
  18 int crypto_expand_key_material_TAP(const uint8_t *key_in,
  19                                    size_t key_in_len,
  20                                    uint8_t *key_out, size_t key_out_len);
  21 int crypto_expand_key_material_rfc5869_sha256(
  22                                     const uint8_t *key_in, size_t key_in_len,
  23                                     const uint8_t *salt_in, size_t salt_in_len,
  24                                     const uint8_t *info_in, size_t info_in_len,
  25                                     uint8_t *key_out, size_t key_out_len);
  26
  27 #endif /* !defined(TOR_CRYPTO_HKDF_H) */