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 # define EVP_KDF_SSHKDF     NID_sshkdf
  26 # define EVP_KDF_SS         NID_sskdf
  27
  28 EVP_KDF_CTX *EVP_KDF_CTX_new_id(int id);
  29 EVP_KDF_CTX *EVP_KDF_CTX_new(const EVP_KDF *kdf);
  30 void EVP_KDF_CTX_free(EVP_KDF_CTX *ctx);
  31 const EVP_KDF *EVP_KDF_CTX_kdf(EVP_KDF_CTX *ctx);
  32
  33 void EVP_KDF_reset(EVP_KDF_CTX *ctx);
  34 int EVP_KDF_ctrl(EVP_KDF_CTX *ctx, int cmd, ...);
  35 int EVP_KDF_vctrl(EVP_KDF_CTX *ctx, int cmd, va_list args);
  36 int EVP_KDF_ctrl_str(EVP_KDF_CTX *ctx, const char *type, const char *value);
  37 size_t EVP_KDF_size(EVP_KDF_CTX *ctx);
  38 int EVP_KDF_derive(EVP_KDF_CTX *ctx, unsigned char *key, size_t keylen);
  39
  40 int EVP_KDF_nid(const EVP_KDF *kdf);
  41 # define EVP_get_kdfbynid(a)    EVP_get_kdfbyname(OBJ_nid2sn(a))
  42 # define EVP_get_kdfbyobj(a)    EVP_get_kdfbynid(OBJ_obj2nid(a))
  43 # define EVP_KDF_name(o)        OBJ_nid2sn(EVP_KDF_nid(o))
  44 const EVP_KDF *EVP_get_kdfbyname(const char *name);
  45
  46 # define EVP_KDF_CTRL_SET_PASS          0x01 /* unsigned char *, size_t */
  47 # define EVP_KDF_CTRL_SET_SALT          0x02 /* unsigned char *, size_t */
  48 # define EVP_KDF_CTRL_SET_ITER          0x03 /* int */
  49 # define EVP_KDF_CTRL_SET_MD            0x04 /* EVP_MD * */
  50 # define EVP_KDF_CTRL_SET_KEY           0x05 /* unsigned char *, size_t */
  51 # define EVP_KDF_CTRL_SET_MAXMEM_BYTES  0x06 /* uint64_t */
  52 # define EVP_KDF_CTRL_SET_TLS_SECRET    0x07 /* unsigned char *, size_t */
  53 # define EVP_KDF_CTRL_RESET_TLS_SEED    0x08
  54 # define EVP_KDF_CTRL_ADD_TLS_SEED      0x09 /* unsigned char *, size_t */
  55 # define EVP_KDF_CTRL_RESET_HKDF_INFO   0x0a
  56 # define EVP_KDF_CTRL_ADD_HKDF_INFO     0x0b /* unsigned char *, size_t */
  57 # define EVP_KDF_CTRL_SET_HKDF_MODE     0x0c /* int */
  58 # define EVP_KDF_CTRL_SET_SCRYPT_N      0x0d /* uint64_t */
  59 # define EVP_KDF_CTRL_SET_SCRYPT_R      0x0e /* uint32_t */
  60 # define EVP_KDF_CTRL_SET_SCRYPT_P      0x0f /* uint32_t */
  61 # define EVP_KDF_CTRL_SET_SSHKDF_XCGHASH    0x10 /* unsigned char *, size_t */
  62 # define EVP_KDF_CTRL_SET_SSHKDF_SESSION_ID 0x11 /* unsigned char *, size_t */
  63 # define EVP_KDF_CTRL_SET_SSHKDF_TYPE       0x12 /* int */
  64 # define EVP_KDF_CTRL_SET_MAC           0x13 /* EVP_MAC * */
  65 # define EVP_KDF_CTRL_SET_MAC_SIZE      0x14 /* size_t */
  66 # define EVP_KDF_CTRL_SET_SSKDF_INFO    0x15 /* unsigned char *, size_t */
  67
  68 # define EVP_KDF_HKDF_MODE_EXTRACT_AND_EXPAND  0
  69 # define EVP_KDF_HKDF_MODE_EXTRACT_ONLY        1
  70 # define EVP_KDF_HKDF_MODE_EXPAND_ONLY         2
  71
  72 #define EVP_KDF_SSHKDF_TYPE_INITIAL_IV_CLI_TO_SRV 65
  73 #define EVP_KDF_SSHKDF_TYPE_INITIAL_IV_SRV_TO_CLI 66
  74 #define EVP_KDF_SSHKDF_TYPE_ENCRYPTION_KEY_CLI_TO_SRV 67
  75 #define EVP_KDF_SSHKDF_TYPE_ENCRYPTION_KEY_SRV_TO_CLI 68
  76 #define EVP_KDF_SSHKDF_TYPE_INTEGRITY_KEY_CLI_TO_SRV 69
  77 #define EVP_KDF_SSHKDF_TYPE_INTEGRITY_KEY_SRV_TO_CLI 70
  78
  79 /**** The legacy PKEY-based KDF API follows. ****/
  80
  81 # define EVP_PKEY_CTRL_TLS_MD                   (EVP_PKEY_ALG_CTRL)
  82 # define EVP_PKEY_CTRL_TLS_SECRET               (EVP_PKEY_ALG_CTRL + 1)
  83 # define EVP_PKEY_CTRL_TLS_SEED                 (EVP_PKEY_ALG_CTRL + 2)
  84 # define EVP_PKEY_CTRL_HKDF_MD                  (EVP_PKEY_ALG_CTRL + 3)
  85 # define EVP_PKEY_CTRL_HKDF_SALT                (EVP_PKEY_ALG_CTRL + 4)
  86 # define EVP_PKEY_CTRL_HKDF_KEY                 (EVP_PKEY_ALG_CTRL + 5)
  87 # define EVP_PKEY_CTRL_HKDF_INFO                (EVP_PKEY_ALG_CTRL + 6)
  88 # define EVP_PKEY_CTRL_HKDF_MODE                (EVP_PKEY_ALG_CTRL + 7)
  89 # define EVP_PKEY_CTRL_PASS                     (EVP_PKEY_ALG_CTRL + 8)
  90 # define EVP_PKEY_CTRL_SCRYPT_SALT              (EVP_PKEY_ALG_CTRL + 9)
  91 # define EVP_PKEY_CTRL_SCRYPT_N                 (EVP_PKEY_ALG_CTRL + 10)
  92 # define EVP_PKEY_CTRL_SCRYPT_R                 (EVP_PKEY_ALG_CTRL + 11)
  93 # define EVP_PKEY_CTRL_SCRYPT_P                 (EVP_PKEY_ALG_CTRL + 12)
  94 # define EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES      (EVP_PKEY_ALG_CTRL + 13)
  95
  96 # define EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND \
  97             EVP_KDF_HKDF_MODE_EXTRACT_AND_EXPAND
  98 # define EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY       \
  99             EVP_KDF_HKDF_MODE_EXTRACT_ONLY
 100 # define EVP_PKEY_HKDEF_MODE_EXPAND_ONLY        \
 101             EVP_KDF_HKDF_MODE_EXPAND_ONLY
 102
 103 # define EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) \
 104             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 105                               EVP_PKEY_CTRL_TLS_MD, 0, (void *)(md))
 106
 107 # define EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, seclen) \
 108             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 109                               EVP_PKEY_CTRL_TLS_SECRET, seclen, (void *)(sec))
 110
 111 # define EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed, seedlen) \
 112             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 113                               EVP_PKEY_CTRL_TLS_SEED, seedlen, (void *)(seed))
 114
 115 # define EVP_PKEY_CTX_set_hkdf_md(pctx, md) \
 116             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 117                               EVP_PKEY_CTRL_HKDF_MD, 0, (void *)(md))
 118
 119 # define EVP_PKEY_CTX_set1_hkdf_salt(pctx, salt, saltlen) \
 120             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 121                               EVP_PKEY_CTRL_HKDF_SALT, saltlen, (void *)(salt))
 122
 123 # define EVP_PKEY_CTX_set1_hkdf_key(pctx, key, keylen) \
 124             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 125                               EVP_PKEY_CTRL_HKDF_KEY, keylen, (void *)(key))
 126
 127 # define EVP_PKEY_CTX_add1_hkdf_info(pctx, info, infolen) \
 128             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 129                               EVP_PKEY_CTRL_HKDF_INFO, infolen, (void *)(info))
 130
 131 # define EVP_PKEY_CTX_hkdf_mode(pctx, mode) \
 132             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 133                               EVP_PKEY_CTRL_HKDF_MODE, mode, NULL)
 134
 135 # define EVP_PKEY_CTX_set1_pbe_pass(pctx, pass, passlen) \
 136             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 137                             EVP_PKEY_CTRL_PASS, passlen, (void *)(pass))
 138
 139 # define EVP_PKEY_CTX_set1_scrypt_salt(pctx, salt, saltlen) \
 140             EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_DERIVE, \
 141                             EVP_PKEY_CTRL_SCRYPT_SALT, saltlen, (void *)(salt))
 142
 143 # define EVP_PKEY_CTX_set_scrypt_N(pctx, n) \
 144             EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
 145                             EVP_PKEY_CTRL_SCRYPT_N, n)
 146
 147 # define EVP_PKEY_CTX_set_scrypt_r(pctx, r) \
 148             EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
 149                             EVP_PKEY_CTRL_SCRYPT_R, r)
 150
 151 # define EVP_PKEY_CTX_set_scrypt_p(pctx, p) \
 152             EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
 153                             EVP_PKEY_CTRL_SCRYPT_P, p)
 154
 155 # define EVP_PKEY_CTX_set_scrypt_maxmem_bytes(pctx, maxmem_bytes) \
 156             EVP_PKEY_CTX_ctrl_uint64(pctx, -1, EVP_PKEY_OP_DERIVE, \
 157                             EVP_PKEY_CTRL_SCRYPT_MAXMEM_BYTES, maxmem_bytes)
 158
 159
 160 # ifdef __cplusplus
 161 }
 162 # endif
 163 #endif