Willie Solano / mbedtls-slave-prot-prod

mbed TLS Build

Dependents:   Slave-prot-prod

include/mbedtls/dhm.h@1:1a219dea6cb5, 2019-06-04 (annotated)

Committer:
williequesada
Date:
Tue Jun 04 16:03:38 2019 +0000
Revision:
1:1a219dea6cb5
Parent:
0:cdf462088d13 
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markrad 0:cdf462088d13 1 /**
markrad 0:cdf462088d13 2 * \file dhm.h
markrad 0:cdf462088d13 3 *
markrad 0:cdf462088d13 4 * \brief Diffie-Hellman-Merkle key exchange
markrad 0:cdf462088d13 5 *
markrad 0:cdf462088d13 6 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
markrad 0:cdf462088d13 7 * SPDX-License-Identifier: Apache-2.0
markrad 0:cdf462088d13 8 *
markrad 0:cdf462088d13 9 * Licensed under the Apache License, Version 2.0 (the "License"); you may
markrad 0:cdf462088d13 10 * not use this file except in compliance with the License.
markrad 0:cdf462088d13 11 * You may obtain a copy of the License at
markrad 0:cdf462088d13 12 *
markrad 0:cdf462088d13 13 * http://www.apache.org/licenses/LICENSE-2.0
markrad 0:cdf462088d13 14 *
markrad 0:cdf462088d13 15 * Unless required by applicable law or agreed to in writing, software
markrad 0:cdf462088d13 16 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
markrad 0:cdf462088d13 17 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
markrad 0:cdf462088d13 18 * See the License for the specific language governing permissions and
markrad 0:cdf462088d13 19 * limitations under the License.
markrad 0:cdf462088d13 20 *
markrad 0:cdf462088d13 21 * This file is part of mbed TLS (https://tls.mbed.org)
markrad 0:cdf462088d13 22 */
markrad 0:cdf462088d13 23 #ifndef MBEDTLS_DHM_H
markrad 0:cdf462088d13 24 #define MBEDTLS_DHM_H
markrad 0:cdf462088d13 25
markrad 0:cdf462088d13 26 #include "bignum.h"
markrad 0:cdf462088d13 27
markrad 0:cdf462088d13 28 /*
markrad 0:cdf462088d13 29 * DHM Error codes
markrad 0:cdf462088d13 30 */
markrad 0:cdf462088d13 31 #define MBEDTLS_ERR_DHM_BAD_INPUT_DATA -0x3080 /**< Bad input parameters to function. */
markrad 0:cdf462088d13 32 #define MBEDTLS_ERR_DHM_READ_PARAMS_FAILED -0x3100 /**< Reading of the DHM parameters failed. */
markrad 0:cdf462088d13 33 #define MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED -0x3180 /**< Making of the DHM parameters failed. */
markrad 0:cdf462088d13 34 #define MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED -0x3200 /**< Reading of the public values failed. */
markrad 0:cdf462088d13 35 #define MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED -0x3280 /**< Making of the public value failed. */
markrad 0:cdf462088d13 36 #define MBEDTLS_ERR_DHM_CALC_SECRET_FAILED -0x3300 /**< Calculation of the DHM secret failed. */
markrad 0:cdf462088d13 37 #define MBEDTLS_ERR_DHM_INVALID_FORMAT -0x3380 /**< The ASN.1 data is not formatted correctly. */
markrad 0:cdf462088d13 38 #define MBEDTLS_ERR_DHM_ALLOC_FAILED -0x3400 /**< Allocation of memory failed. */
markrad 0:cdf462088d13 39 #define MBEDTLS_ERR_DHM_FILE_IO_ERROR -0x3480 /**< Read/write of file failed. */
markrad 0:cdf462088d13 40
markrad 0:cdf462088d13 41 /**
markrad 0:cdf462088d13 42 * RFC 3526 defines a number of standardized Diffie-Hellman groups
markrad 0:cdf462088d13 43 * for IKE.
markrad 0:cdf462088d13 44 * RFC 5114 defines a number of standardized Diffie-Hellman groups
markrad 0:cdf462088d13 45 * that can be used.
markrad 0:cdf462088d13 46 *
markrad 0:cdf462088d13 47 * Some are included here for convenience.
markrad 0:cdf462088d13 48 *
markrad 0:cdf462088d13 49 * Included are:
markrad 0:cdf462088d13 50 * RFC 3526 3. 2048-bit MODP Group
markrad 0:cdf462088d13 51 * RFC 3526 4. 3072-bit MODP Group
markrad 0:cdf462088d13 52 * RFC 3526 5. 4096-bit MODP Group
markrad 0:cdf462088d13 53 * RFC 5114 2.2. 2048-bit MODP Group with 224-bit Prime Order Subgroup
markrad 0:cdf462088d13 54 */
markrad 0:cdf462088d13 55 #define MBEDTLS_DHM_RFC3526_MODP_2048_P \
markrad 0:cdf462088d13 56 "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" \
markrad 0:cdf462088d13 57 "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" \
markrad 0:cdf462088d13 58 "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" \
markrad 0:cdf462088d13 59 "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" \
markrad 0:cdf462088d13 60 "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" \
markrad 0:cdf462088d13 61 "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" \
markrad 0:cdf462088d13 62 "83655D23DCA3AD961C62F356208552BB9ED529077096966D" \
markrad 0:cdf462088d13 63 "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" \
markrad 0:cdf462088d13 64 "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" \
markrad 0:cdf462088d13 65 "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" \
markrad 0:cdf462088d13 66 "15728E5A8AACAA68FFFFFFFFFFFFFFFF"
markrad 0:cdf462088d13 67
markrad 0:cdf462088d13 68 #define MBEDTLS_DHM_RFC3526_MODP_2048_G "02"
markrad 0:cdf462088d13 69
markrad 0:cdf462088d13 70 #define MBEDTLS_DHM_RFC3526_MODP_3072_P \
markrad 0:cdf462088d13 71 "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" \
markrad 0:cdf462088d13 72 "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" \
markrad 0:cdf462088d13 73 "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" \
markrad 0:cdf462088d13 74 "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" \
markrad 0:cdf462088d13 75 "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" \
markrad 0:cdf462088d13 76 "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" \
markrad 0:cdf462088d13 77 "83655D23DCA3AD961C62F356208552BB9ED529077096966D" \
markrad 0:cdf462088d13 78 "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" \
markrad 0:cdf462088d13 79 "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" \
markrad 0:cdf462088d13 80 "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" \
markrad 0:cdf462088d13 81 "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" \
markrad 0:cdf462088d13 82 "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" \
markrad 0:cdf462088d13 83 "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" \
markrad 0:cdf462088d13 84 "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" \
markrad 0:cdf462088d13 85 "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" \
markrad 0:cdf462088d13 86 "43DB5BFCE0FD108E4B82D120A93AD2CAFFFFFFFFFFFFFFFF"
markrad 0:cdf462088d13 87
markrad 0:cdf462088d13 88 #define MBEDTLS_DHM_RFC3526_MODP_3072_G "02"
markrad 0:cdf462088d13 89
markrad 0:cdf462088d13 90 #define MBEDTLS_DHM_RFC3526_MODP_4096_P \
markrad 0:cdf462088d13 91 "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" \
markrad 0:cdf462088d13 92 "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" \
markrad 0:cdf462088d13 93 "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" \
markrad 0:cdf462088d13 94 "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" \
markrad 0:cdf462088d13 95 "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" \
markrad 0:cdf462088d13 96 "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" \
markrad 0:cdf462088d13 97 "83655D23DCA3AD961C62F356208552BB9ED529077096966D" \
markrad 0:cdf462088d13 98 "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" \
markrad 0:cdf462088d13 99 "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" \
markrad 0:cdf462088d13 100 "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" \
markrad 0:cdf462088d13 101 "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" \
markrad 0:cdf462088d13 102 "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" \
markrad 0:cdf462088d13 103 "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" \
markrad 0:cdf462088d13 104 "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" \
markrad 0:cdf462088d13 105 "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" \
markrad 0:cdf462088d13 106 "43DB5BFCE0FD108E4B82D120A92108011A723C12A787E6D7" \
markrad 0:cdf462088d13 107 "88719A10BDBA5B2699C327186AF4E23C1A946834B6150BDA" \
markrad 0:cdf462088d13 108 "2583E9CA2AD44CE8DBBBC2DB04DE8EF92E8EFC141FBECAA6" \
markrad 0:cdf462088d13 109 "287C59474E6BC05D99B2964FA090C3A2233BA186515BE7ED" \
markrad 0:cdf462088d13 110 "1F612970CEE2D7AFB81BDD762170481CD0069127D5B05AA9" \
markrad 0:cdf462088d13 111 "93B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934063199" \
markrad 0:cdf462088d13 112 "FFFFFFFFFFFFFFFF"
markrad 0:cdf462088d13 113
markrad 0:cdf462088d13 114 #define MBEDTLS_DHM_RFC3526_MODP_4096_G "02"
markrad 0:cdf462088d13 115
markrad 0:cdf462088d13 116 #define MBEDTLS_DHM_RFC5114_MODP_2048_P \
markrad 0:cdf462088d13 117 "AD107E1E9123A9D0D660FAA79559C51FA20D64E5683B9FD1" \
markrad 0:cdf462088d13 118 "B54B1597B61D0A75E6FA141DF95A56DBAF9A3C407BA1DF15" \
markrad 0:cdf462088d13 119 "EB3D688A309C180E1DE6B85A1274A0A66D3F8152AD6AC212" \
markrad 0:cdf462088d13 120 "9037C9EDEFDA4DF8D91E8FEF55B7394B7AD5B7D0B6C12207" \
markrad 0:cdf462088d13 121 "C9F98D11ED34DBF6C6BA0B2C8BBC27BE6A00E0A0B9C49708" \
markrad 0:cdf462088d13 122 "B3BF8A317091883681286130BC8985DB1602E714415D9330" \
markrad 0:cdf462088d13 123 "278273C7DE31EFDC7310F7121FD5A07415987D9ADC0A486D" \
markrad 0:cdf462088d13 124 "CDF93ACC44328387315D75E198C641A480CD86A1B9E587E8" \
markrad 0:cdf462088d13 125 "BE60E69CC928B2B9C52172E413042E9B23F10B0E16E79763" \
markrad 0:cdf462088d13 126 "C9B53DCF4BA80A29E3FB73C16B8E75B97EF363E2FFA31F71" \
markrad 0:cdf462088d13 127 "CF9DE5384E71B81C0AC4DFFE0C10E64F"
markrad 0:cdf462088d13 128
markrad 0:cdf462088d13 129 #define MBEDTLS_DHM_RFC5114_MODP_2048_G \
markrad 0:cdf462088d13 130 "AC4032EF4F2D9AE39DF30B5C8FFDAC506CDEBE7B89998CAF"\
markrad 0:cdf462088d13 131 "74866A08CFE4FFE3A6824A4E10B9A6F0DD921F01A70C4AFA"\
markrad 0:cdf462088d13 132 "AB739D7700C29F52C57DB17C620A8652BE5E9001A8D66AD7"\
markrad 0:cdf462088d13 133 "C17669101999024AF4D027275AC1348BB8A762D0521BC98A"\
markrad 0:cdf462088d13 134 "E247150422EA1ED409939D54DA7460CDB5F6C6B250717CBE"\
markrad 0:cdf462088d13 135 "F180EB34118E98D119529A45D6F834566E3025E316A330EF"\
markrad 0:cdf462088d13 136 "BB77A86F0C1AB15B051AE3D428C8F8ACB70A8137150B8EEB"\
markrad 0:cdf462088d13 137 "10E183EDD19963DDD9E263E4770589EF6AA21E7F5F2FF381"\
markrad 0:cdf462088d13 138 "B539CCE3409D13CD566AFBB48D6C019181E1BCFE94B30269"\
markrad 0:cdf462088d13 139 "EDFE72FE9B6AA4BD7B5A0F1C71CFFF4C19C418E1F6EC0179"\
markrad 0:cdf462088d13 140 "81BC087F2A7065B384B890D3191F2BFA"
markrad 0:cdf462088d13 141
markrad 0:cdf462088d13 142 #ifdef __cplusplus
markrad 0:cdf462088d13 143 extern "C" {
markrad 0:cdf462088d13 144 #endif
markrad 0:cdf462088d13 145
markrad 0:cdf462088d13 146 /**
markrad 0:cdf462088d13 147 * \brief DHM context structure
markrad 0:cdf462088d13 148 */
markrad 0:cdf462088d13 149 typedef struct
markrad 0:cdf462088d13 150 {
markrad 0:cdf462088d13 151 size_t len; /*!< size(P) in chars */
markrad 0:cdf462088d13 152 mbedtls_mpi P; /*!< prime modulus */
markrad 0:cdf462088d13 153 mbedtls_mpi G; /*!< generator */
markrad 0:cdf462088d13 154 mbedtls_mpi X; /*!< secret value */
markrad 0:cdf462088d13 155 mbedtls_mpi GX; /*!< self = G^X mod P */
markrad 0:cdf462088d13 156 mbedtls_mpi GY; /*!< peer = G^Y mod P */
markrad 0:cdf462088d13 157 mbedtls_mpi K; /*!< key = GY^X mod P */
markrad 0:cdf462088d13 158 mbedtls_mpi RP; /*!< cached R^2 mod P */
markrad 0:cdf462088d13 159 mbedtls_mpi Vi; /*!< blinding value */
markrad 0:cdf462088d13 160 mbedtls_mpi Vf; /*!< un-blinding value */
markrad 0:cdf462088d13 161 mbedtls_mpi pX; /*!< previous X */
markrad 0:cdf462088d13 162 }
markrad 0:cdf462088d13 163 mbedtls_dhm_context;
markrad 0:cdf462088d13 164
markrad 0:cdf462088d13 165 /**
markrad 0:cdf462088d13 166 * \brief Initialize DHM context
markrad 0:cdf462088d13 167 *
markrad 0:cdf462088d13 168 * \param ctx DHM context to be initialized
markrad 0:cdf462088d13 169 */
markrad 0:cdf462088d13 170 void mbedtls_dhm_init( mbedtls_dhm_context *ctx );
markrad 0:cdf462088d13 171
markrad 0:cdf462088d13 172 /**
markrad 0:cdf462088d13 173 * \brief Parse the ServerKeyExchange parameters
markrad 0:cdf462088d13 174 *
markrad 0:cdf462088d13 175 * \param ctx DHM context
markrad 0:cdf462088d13 176 * \param p &(start of input buffer)
markrad 0:cdf462088d13 177 * \param end end of buffer
markrad 0:cdf462088d13 178 *
markrad 0:cdf462088d13 179 * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code
markrad 0:cdf462088d13 180 */
markrad 0:cdf462088d13 181 int mbedtls_dhm_read_params( mbedtls_dhm_context *ctx,
markrad 0:cdf462088d13 182 unsigned char **p,
markrad 0:cdf462088d13 183 const unsigned char *end );
markrad 0:cdf462088d13 184
markrad 0:cdf462088d13 185 /**
markrad 0:cdf462088d13 186 * \brief Setup and write the ServerKeyExchange parameters
markrad 0:cdf462088d13 187 *
markrad 0:cdf462088d13 188 * \param ctx DHM context
markrad 0:cdf462088d13 189 * \param x_size private value size in bytes
markrad 0:cdf462088d13 190 * \param output destination buffer
markrad 0:cdf462088d13 191 * \param olen number of chars written
markrad 0:cdf462088d13 192 * \param f_rng RNG function
markrad 0:cdf462088d13 193 * \param p_rng RNG parameter
markrad 0:cdf462088d13 194 *
markrad 0:cdf462088d13 195 * \note This function assumes that ctx->P and ctx->G
markrad 0:cdf462088d13 196 * have already been properly set (for example
markrad 0:cdf462088d13 197 * using mbedtls_mpi_read_string or mbedtls_mpi_read_binary).
markrad 0:cdf462088d13 198 *
markrad 0:cdf462088d13 199 * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code
markrad 0:cdf462088d13 200 */
markrad 0:cdf462088d13 201 int mbedtls_dhm_make_params( mbedtls_dhm_context *ctx, int x_size,
markrad 0:cdf462088d13 202 unsigned char *output, size_t *olen,
markrad 0:cdf462088d13 203 int (*f_rng)(void *, unsigned char *, size_t),
markrad 0:cdf462088d13 204 void *p_rng );
markrad 0:cdf462088d13 205
markrad 0:cdf462088d13 206 /**
markrad 0:cdf462088d13 207 * \brief Import the peer's public value G^Y
markrad 0:cdf462088d13 208 *
markrad 0:cdf462088d13 209 * \param ctx DHM context
markrad 0:cdf462088d13 210 * \param input input buffer
markrad 0:cdf462088d13 211 * \param ilen size of buffer
markrad 0:cdf462088d13 212 *
markrad 0:cdf462088d13 213 * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code
markrad 0:cdf462088d13 214 */
markrad 0:cdf462088d13 215 int mbedtls_dhm_read_public( mbedtls_dhm_context *ctx,
markrad 0:cdf462088d13 216 const unsigned char *input, size_t ilen );
markrad 0:cdf462088d13 217
markrad 0:cdf462088d13 218 /**
markrad 0:cdf462088d13 219 * \brief Create own private value X and export G^X
markrad 0:cdf462088d13 220 *
markrad 0:cdf462088d13 221 * \param ctx DHM context
markrad 0:cdf462088d13 222 * \param x_size private value size in bytes
markrad 0:cdf462088d13 223 * \param output destination buffer
markrad 0:cdf462088d13 224 * \param olen must be at least equal to the size of P, ctx->len
markrad 0:cdf462088d13 225 * \param f_rng RNG function
markrad 0:cdf462088d13 226 * \param p_rng RNG parameter
markrad 0:cdf462088d13 227 *
markrad 0:cdf462088d13 228 * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code
markrad 0:cdf462088d13 229 */
markrad 0:cdf462088d13 230 int mbedtls_dhm_make_public( mbedtls_dhm_context *ctx, int x_size,
markrad 0:cdf462088d13 231 unsigned char *output, size_t olen,
markrad 0:cdf462088d13 232 int (*f_rng)(void *, unsigned char *, size_t),
markrad 0:cdf462088d13 233 void *p_rng );
markrad 0:cdf462088d13 234
markrad 0:cdf462088d13 235 /**
markrad 0:cdf462088d13 236 * \brief Derive and export the shared secret (G^Y)^X mod P
markrad 0:cdf462088d13 237 *
markrad 0:cdf462088d13 238 * \param ctx DHM context
markrad 0:cdf462088d13 239 * \param output destination buffer
markrad 0:cdf462088d13 240 * \param output_size size of the destination buffer
markrad 0:cdf462088d13 241 * \param olen on exit, holds the actual number of bytes written
markrad 0:cdf462088d13 242 * \param f_rng RNG function, for blinding purposes
markrad 0:cdf462088d13 243 * \param p_rng RNG parameter
markrad 0:cdf462088d13 244 *
markrad 0:cdf462088d13 245 * \return 0 if successful, or an MBEDTLS_ERR_DHM_XXX error code
markrad 0:cdf462088d13 246 *
markrad 0:cdf462088d13 247 * \note If non-NULL, f_rng is used to blind the input as
markrad 0:cdf462088d13 248 * countermeasure against timing attacks. Blinding is
markrad 0:cdf462088d13 249 * automatically used if and only if our secret value X is
markrad 0:cdf462088d13 250 * re-used and costs nothing otherwise, so it is recommended
markrad 0:cdf462088d13 251 * to always pass a non-NULL f_rng argument.
markrad 0:cdf462088d13 252 */
markrad 0:cdf462088d13 253 int mbedtls_dhm_calc_secret( mbedtls_dhm_context *ctx,
markrad 0:cdf462088d13 254 unsigned char *output, size_t output_size, size_t *olen,
markrad 0:cdf462088d13 255 int (*f_rng)(void *, unsigned char *, size_t),
markrad 0:cdf462088d13 256 void *p_rng );
markrad 0:cdf462088d13 257
markrad 0:cdf462088d13 258 /**
markrad 0:cdf462088d13 259 * \brief Free and clear the components of a DHM key
markrad 0:cdf462088d13 260 *
markrad 0:cdf462088d13 261 * \param ctx DHM context to free and clear
markrad 0:cdf462088d13 262 */
markrad 0:cdf462088d13 263 void mbedtls_dhm_free( mbedtls_dhm_context *ctx );
markrad 0:cdf462088d13 264
markrad 0:cdf462088d13 265 #if defined(MBEDTLS_ASN1_PARSE_C)
markrad 0:cdf462088d13 266 /** \ingroup x509_module */
markrad 0:cdf462088d13 267 /**
markrad 0:cdf462088d13 268 * \brief Parse DHM parameters in PEM or DER format
markrad 0:cdf462088d13 269 *
markrad 0:cdf462088d13 270 * \param dhm DHM context to be initialized
markrad 0:cdf462088d13 271 * \param dhmin input buffer
markrad 0:cdf462088d13 272 * \param dhminlen size of the buffer
markrad 0:cdf462088d13 273 * (including the terminating null byte for PEM data)
markrad 0:cdf462088d13 274 *
markrad 0:cdf462088d13 275 * \return 0 if successful, or a specific DHM or PEM error code
markrad 0:cdf462088d13 276 */
markrad 0:cdf462088d13 277 int mbedtls_dhm_parse_dhm( mbedtls_dhm_context *dhm, const unsigned char *dhmin,
markrad 0:cdf462088d13 278 size_t dhminlen );
markrad 0:cdf462088d13 279
markrad 0:cdf462088d13 280 #if defined(MBEDTLS_FS_IO)
markrad 0:cdf462088d13 281 /** \ingroup x509_module */
markrad 0:cdf462088d13 282 /**
markrad 0:cdf462088d13 283 * \brief Load and parse DHM parameters
markrad 0:cdf462088d13 284 *
markrad 0:cdf462088d13 285 * \param dhm DHM context to be initialized
markrad 0:cdf462088d13 286 * \param path filename to read the DHM Parameters from
markrad 0:cdf462088d13 287 *
markrad 0:cdf462088d13 288 * \return 0 if successful, or a specific DHM or PEM error code
markrad 0:cdf462088d13 289 */
markrad 0:cdf462088d13 290 int mbedtls_dhm_parse_dhmfile( mbedtls_dhm_context *dhm, const char *path );
markrad 0:cdf462088d13 291 #endif /* MBEDTLS_FS_IO */
markrad 0:cdf462088d13 292 #endif /* MBEDTLS_ASN1_PARSE_C */
markrad 0:cdf462088d13 293
markrad 0:cdf462088d13 294 /**
markrad 0:cdf462088d13 295 * \brief Checkup routine
markrad 0:cdf462088d13 296 *
markrad 0:cdf462088d13 297 * \return 0 if successful, or 1 if the test failed
markrad 0:cdf462088d13 298 */
markrad 0:cdf462088d13 299 int mbedtls_dhm_self_test( int verbose );
markrad 0:cdf462088d13 300
markrad 0:cdf462088d13 301 #ifdef __cplusplus
markrad 0:cdf462088d13 302 }
markrad 0:cdf462088d13 303 #endif
markrad 0:cdf462088d13 304
markrad 0:cdf462088d13 305 #endif /* dhm.h */