text: ﻿/*
   * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
   *
   * Licensed under the OpenSSL license (the "License").  You may not use
   * this file except in compliance with the License.  You can obtain a copy
   * in the file LICENSE in the source distribution or at
   * https://www.openssl.org/source/license.html
   */
  
  #ifndef HEADER_KDF_H
  # define HEADER_KDF_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  # define EVP_PKEY_CTRL_TLS_MD       (EVP_PKEY_ALG_CTRL)
  # define EVP_PKEY_CTRL_TLS_SECRET   (EVP_PKEY_ALG_CTRL + 1)
  # define EVP_PKEY_CTRL_TLS_SEED     (EVP_PKEY_ALG_CTRL + 2)
  # define EVP_PKEY_CTRL_HKDF_MD      (EVP_PKEY_ALG_CTRL + 3)
  # define EVP_PKEY_CTRL_HKDF_SALT    (EVP_PKEY_ALG_CTRL + 4)
  # define EVP_PKEY_CTRL_HKDF_KEY     (EVP_PKEY_ALG_CTRL + 5)
  # define EVP_PKEY_CTRL_HKDF_INFO    (EVP_PKEY_ALG_CTRL + 6)
  
  # define EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) \
              EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
                                EVP_PKEY_CTRL_TLS_MD, 0, (void *)md)
  
  # define EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, seclen) \
              EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
                                EVP_PKEY_CTRL_TLS_SECRET, seclen, (void *)sec)
  
  # define EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed, seedlen) \
              EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
                                EVP_PKEY_CTRL_TLS_SEED, seedlen, (void *)seed)
  
  # define EVP_PKEY_CTX_set_hkdf_md(pctx, md) \
              EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
                                EVP_PKEY_CTRL_HKDF_MD, 0, (void *)md)
  
  # define EVP_PKEY_CTX_set1_hkdf_salt(pctx, salt, saltlen) \
              EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
                                EVP_PKEY_CTRL_HKDF_SALT, saltlen, (void *)salt)
  
  # define EVP_PKEY_CTX_set1_hkdf_key(pctx, key, keylen) \
              EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
                                EVP_PKEY_CTRL_HKDF_KEY, keylen, (void *)key)
  
  # define EVP_PKEY_CTX_add1_hkdf_info(pctx, info, infolen) \
              EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
                                EVP_PKEY_CTRL_HKDF_INFO, infolen, (void *)info)
  
  /* BEGIN ERROR CODES */
  /*
   * The following lines are auto generated by the script mkerr.pl. Any changes
   * made after this point may be overwritten when the script is next run.
   */
  
  int ERR_load_KDF_strings(void);
  
  /* Error codes for the KDF functions. */
  
  /* Function codes. */
  # define KDF_F_PKEY_TLS1_PRF_CTRL_STR                     100
  # define KDF_F_PKEY_TLS1_PRF_DERIVE                       101
  
  /* Reason codes. */
  # define KDF_R_INVALID_DIGEST                             100
  # define KDF_R_MISSING_PARAMETER                          101
  # define KDF_R_VALUE_MISSING                              102
  
  # ifdef  __cplusplus
  }
  # endif
  #endif
  