1 /** 2 * \file pkcs5.h 3 * 4 * \brief PKCS#5 functions 5 * 6 * \author Mathias Olsson <mathias@kompetensum.com> 7 */ 8 /* 9 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved 10 * SPDX-License-Identifier: Apache-2.0 11 * 12 * Licensed under the Apache License, Version 2.0 (the "License"); you may 13 * not use this file except in compliance with the License. 14 * You may obtain a copy of the License at 15 * 16 * http://www.apache.org/licenses/LICENSE-2.0 17 * 18 * Unless required by applicable law or agreed to in writing, software 19 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 20 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 21 * See the License for the specific language governing permissions and 22 * limitations under the License. 23 * 24 * This file is part of mbed TLS (https://tls.mbed.org) 25 */ 26 #ifndef MBEDTLS_PKCS5_H 27 #define MBEDTLS_PKCS5_H 28 29 #include "asn1.h" 30 #include "md.h" 31 32 #include <stddef.h> 33 #include <stdint.h> 34 35 #define MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA -0x2f80 /**< Bad input parameters to function. */ 36 #define MBEDTLS_ERR_PKCS5_INVALID_FORMAT -0x2f00 /**< Unexpected ASN.1 data. */ 37 #define MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE -0x2e80 /**< Requested encryption or digest alg not available. */ 38 #define MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH -0x2e00 /**< Given private key password does not allow for correct decryption. */ 39 40 #define MBEDTLS_PKCS5_DECRYPT 0 41 #define MBEDTLS_PKCS5_ENCRYPT 1 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 #if defined(MBEDTLS_ASN1_PARSE_C) 48 49 /** 50 * \brief PKCS#5 PBES2 function 51 * 52 * \param pbe_params the ASN.1 algorithm parameters 53 * \param mode either MBEDTLS_PKCS5_DECRYPT or MBEDTLS_PKCS5_ENCRYPT 54 * \param pwd password to use when generating key 55 * \param pwdlen length of password 56 * \param data data to process 57 * \param datalen length of data 58 * \param output output buffer 59 * 60 * \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails. 61 */ 62 int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode, 63 const unsigned char *pwd, size_t pwdlen, 64 const unsigned char *data, size_t datalen, 65 unsigned char *output ); 66 67 #endif /* MBEDTLS_ASN1_PARSE_C */ 68 69 /** 70 * \brief PKCS#5 PBKDF2 using HMAC 71 * 72 * \param ctx Generic HMAC context 73 * \param password Password to use when generating key 74 * \param plen Length of password 75 * \param salt Salt to use when generating key 76 * \param slen Length of salt 77 * \param iteration_count Iteration count 78 * \param key_length Length of generated key in bytes 79 * \param output Generated key. Must be at least as big as key_length 80 * 81 * \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails. 82 */ 83 int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx, const unsigned char *password, 84 size_t plen, const unsigned char *salt, size_t slen, 85 unsigned int iteration_count, 86 uint32_t key_length, unsigned char *output ); 87 88 /** 89 * \brief Checkup routine 90 * 91 * \return 0 if successful, or 1 if the test failed 92 */ 93 int mbedtls_pkcs5_self_test( int verbose ); 94 95 #ifdef __cplusplus 96 } 97 #endif 98 99 #endif /* pkcs5.h */ 100