include/openssl/kdf.h

   1 /*
   2  * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef HEADER_KDF_H
  11 # define HEADER_KDF_H
  12
  13 # include <stdarg.h>
  14 # include <stddef.h>
  15 # include <openssl/ossl_typ.h>
  16 # include <openssl/kdferr.h>
  17 # ifdef __cplusplus
  18 extern "C" {
  19 # endif
  20
  21 # define EVP_KDF_PBKDF2     NID_id_pbkdf2
  22 # define EVP_KDF_SCRYPT     NID_id_scrypt
  23 # define EVP_KDF_TLS1_PRF   NID_tls1_prf
  24 # define EVP_KDF_HKDF       NID_hkdf
  25
  26 EVP_KDF_CTX *EVP_KDF_CTX_new_id(int id);
  27 void EVP_KDF_CTX_free(EVP_KDF_CTX *ctx);
  28
  29 void EVP_KDF_reset(EVP_KDF_CTX *ctx);
  30 int EVP_KDF_ctrl(EVP_KDF_CTX *ctx, int cmd, ...);
  31 int EVP_KDF_vctrl(EVP_KDF_CTX *ctx, int cmd, va_list args);
  32 int EVP_KDF_ctrl_str(EVP_KDF_CTX *ctx, const char *type, const char *value);
  33 size_t EVP_KDF_size(EVP_KDF_CTX *ctx);
  34 int EVP_KDF_derive(EVP_KDF_CTX *ctx, unsigned char *key, size_t keylen);
  35
  36
  37 # define EVP_KDF_CTRL_SET_PASS          0x01 /* unsigned char *, size_t */
  38 # define EVP_KDF_CTRL_SET_SALT          0x02 /* unsigned char *, size_t */
  39 # define EVP_KDF_CTRL_SET_ITER          0x03 /* int */
  40 # define EVP_KDF_CTRL_SET_MD            0x04 /* EVP_MD * */
  41 # define EVP_KDF_CTRL_SET_KEY           0x05 /* unsigned char *, size_t */
  42 # define EVP_KDF_CTRL_SET_MAXMEM_BYTES  0x06 /* uint64_t */
  43 # define EVP_KDF_CTRL_SET_TLS_SECRET    0x07 /* unsigned char *, size_t */
  44 # define EVP_KDF_CTRL_RESET_TLS_SEED    0x08
  45 # define EVP_KDF_CTRL_ADD_TLS_SEED      0x09 /* unsigned char *, size_t */
  46 # define EVP_KDF_CTRL_RESET_HKDF_INFO   0x0a
  47 # define EVP_KDF_CTRL_ADD_HKDF_INFO     0x0b /* unsigned char *, size_t */
  48 # define EVP_KDF_CTRL_SET_HKDF_MODE     0x0c /* int */
  49 # define EVP_KDF_CTRL_SET_SCRYPT_N      0x0d /* uint64_t */
  50 # define EVP_KDF_CTRL_SET_SCRYPT_R      0x0e /* uint32_t */
  51 # define EVP_KDF_CTRL_SET_SCRYPT_P      0x0f /* uint32_t */
  52
  53 # define EVP_KDF_HKDF_MODE_EXTRACT_AND_EXPAND  0
  54 # define EVP_KDF_HKDF_MODE_EXTRACT_ONLY        1
  55 # define EVP_KDF_HKDF_MODE_EXPAND_ONLY         2
  56
  57
  58 /**** The legacy PKEY-based KDF API follows. ****/
  59
  60 # define EVP_PKEY_CTRL_TLS_MD                   (EVP_PKEY_ALG_CTRL)
  61 # define EVP_PKEY_CTRL_TLS_SECRET               (EVP_PKEY_ALG_CTRL + 1)
  62 # define EVP_PKEY_CTRL_TLS_SEED                 (EVP_PKEY_ALG_CTRL + 2)
  63 # define EVP_PKEY_CTRL_HKDF_MD                  (EVP_PKEY_ALG_CTRL + 3)
  64 # define EVP_PKEY_CTRL_HKDF_SALT                (EVP_PKEY_ALG_CTRL + 4)
  65 # define EVP_PKEY_CTRL_HKDF_KEY                 (EVP_PKEY_ALG_CTRL + 5)
  66 # define EVP_PKEY_CTRL_HKDF_INFO                (EVP_PKEY_ALG_CTRL + 6)
  67 # define EVP_PKEY_CTRL_HKDF_MODE                (EVP_PKEY_ALG_CTRL + 7)
  68 # define EVP_PKEY_CTRL_PASS                     (EVP_PKEY_ALG_CTRL + 8)
  69 # define EVP_PKEY_CTRL_SCRYPT_SALT              (EVP_PKEY_ALG_CTRL + 9)
  70 # define EVP_PKEY_CTRL_SCRYPT_N                 (EVP_PKEY_ALG_CTRL + 10)
  71 # define EVP_PKEY_CTRL_SCRYPT_R                 (EVP_PKEY_ALG_CTRL + 11)
  72 # define EVP_PKEY_CTRL_SCRYPT_P                 (EVP_PKEY_ALG_CTRL + 12)
  73 # define EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES      (EVP_PKEY_ALG_CTRL + 13)
  74
  75 # define EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND \
  76             EVP_KDF_HKDF_MODE_EXTRACT_AND_EXPAND
  77 # define EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY       \
  78             EVP_KDF_HKDF_MODE_EXTRACT_ONLY
  79 # define EVP_PKEY_HKDEF_MODE_EXPAND_ONLY        \
  80             EVP_KDF_HKDF_MODE_EXPAND_ONLY
  81
  82 # define EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) \
  83             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
  84                               EVP_PKEY_CTRL_TLS_MD, 0, (void *)(md))
  85
  86 # define EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, seclen) \
  87             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
  88                               EVP_PKEY_CTRL_TLS_SECRET, seclen, (void *)(sec))
  89
  90 # define EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed, seedlen) \
  91             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
  92                               EVP_PKEY_CTRL_TLS_SEED, seedlen, (void *)(seed))
  93
  94 # define EVP_PKEY_CTX_set_hkdf_md(pctx, md) \
  95             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
  96                               EVP_PKEY_CTRL_HKDF_MD, 0, (void *)(md))
  97
  98 # define EVP_PKEY_CTX_set1_hkdf_salt(pctx, salt, saltlen) \
  99             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 100                               EVP_PKEY_CTRL_HKDF_SALT, saltlen, (void *)(salt))
 101
 102 # define EVP_PKEY_CTX_set1_hkdf_key(pctx, key, keylen) \
 103             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 104                               EVP_PKEY_CTRL_HKDF_KEY, keylen, (void *)(key))
 105
 106 # define EVP_PKEY_CTX_add1_hkdf_info(pctx, info, infolen) \
 107             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 108                               EVP_PKEY_CTRL_HKDF_INFO, infolen, (void *)(info))
 109
 110 # define EVP_PKEY_CTX_hkdf_mode(pctx, mode) \
 111             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 112                               EVP_PKEY_CTRL_HKDF_MODE, mode, NULL)
 113
 114 # define EVP_PKEY_CTX_set1_pbe_pass(pctx, pass, passlen) \
 115             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 116                             EVP_PKEY_CTRL_PASS, passlen, (void *)(pass))
 117
 118 # define EVP_PKEY_CTX_set1_scrypt_salt(pctx, salt, saltlen) \
 119             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 120                             EVP_PKEY_CTRL_SCRYPT_SALT, saltlen, (void *)(salt))
 121
 122 # define EVP_PKEY_CTX_set_scrypt_N(pctx, n) \
 123             EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
 124                             EVP_PKEY_CTRL_SCRYPT_N, n)
 125
 126 # define EVP_PKEY_CTX_set_scrypt_r(pctx, r) \
 127             EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
 128                             EVP_PKEY_CTRL_SCRYPT_R, r)
 129
 130 # define EVP_PKEY_CTX_set_scrypt_p(pctx, p) \
 131             EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
 132                             EVP_PKEY_CTRL_SCRYPT_P, p)
 133
 134 # define EVP_PKEY_CTX_set_scrypt_maxmem_bytes(pctx, maxmem_bytes) \
 135             EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
 136                             EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES, maxmem_bytes)
 137
 138
 139 # ifdef __cplusplus
 140 }
 141 # endif
 142 #endif