pkcs5.h

00001 /**
00002  * \file pkcs5.h
00003  *
00004  * \brief PKCS#5 functions
00005  *
00006  * \author Mathias Olsson <mathias@kompetensum.com>
00007  *
00008  *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
00009  *  SPDX-License-Identifier: Apache-2.0
00010  *
00011  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
00012  *  not use this file except in compliance with the License.
00013  *  You may obtain a copy of the License at
00014  *
00015  *  http://www.apache.org/licenses/LICENSE-2.0
00016  *
00017  *  Unless required by applicable law or agreed to in writing, software
00018  *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00019  *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00020  *  See the License for the specific language governing permissions and
00021  *  limitations under the License.
00022  *
00023  *  This file is part of mbed TLS (https://tls.mbed.org)
00024  */
00025 #ifndef MBEDTLS_PKCS5_H
00026 #define MBEDTLS_PKCS5_H
00027 
00028 #include "asn1.h"
00029 #include "md.h"
00030 
00031 #include <stddef.h>
00032 #include <stdint.h>
00033 
00034 #define MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA                  -0x2f80  /**< Bad input parameters to function. */
00035 #define MBEDTLS_ERR_PKCS5_INVALID_FORMAT                  -0x2f00  /**< Unexpected ASN.1 data. */
00036 #define MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE             -0x2e80  /**< Requested encryption or digest alg not available. */
00037 #define MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH               -0x2e00  /**< Given private key password does not allow for correct decryption. */
00038 
00039 #define MBEDTLS_PKCS5_DECRYPT      0
00040 #define MBEDTLS_PKCS5_ENCRYPT      1
00041 
00042 #ifdef __cplusplus
00043 extern "C" {
00044 #endif
00045 
00046 /**
00047  * \brief          PKCS#5 PBES2 function
00048  *
00049  * \param pbe_params the ASN.1 algorithm parameters
00050  * \param mode       either MBEDTLS_PKCS5_DECRYPT or MBEDTLS_PKCS5_ENCRYPT
00051  * \param pwd        password to use when generating key
00052  * \param pwdlen     length of password
00053  * \param data       data to process
00054  * \param datalen    length of data
00055  * \param output     output buffer
00056  *
00057  * \returns        0 on success, or a MBEDTLS_ERR_XXX code if verification fails.
00058  */
00059 int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode,
00060                  const unsigned char *pwd,  size_t pwdlen,
00061                  const unsigned char *data, size_t datalen,
00062                  unsigned char *output );
00063 
00064 /**
00065  * \brief          PKCS#5 PBKDF2 using HMAC
00066  *
00067  * \param ctx      Generic HMAC context
00068  * \param password Password to use when generating key
00069  * \param plen     Length of password
00070  * \param salt     Salt to use when generating key
00071  * \param slen     Length of salt
00072  * \param iteration_count       Iteration count
00073  * \param key_length            Length of generated key in bytes
00074  * \param output   Generated key. Must be at least as big as key_length
00075  *
00076  * \returns        0 on success, or a MBEDTLS_ERR_XXX code if verification fails.
00077  */
00078 int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx, const unsigned char *password,
00079                        size_t plen, const unsigned char *salt, size_t slen,
00080                        unsigned int iteration_count,
00081                        uint32_t key_length, unsigned char *output );
00082 
00083 /**
00084  * \brief          Checkup routine
00085  *
00086  * \return         0 if successful, or 1 if the test failed
00087  */
00088 int mbedtls_pkcs5_self_test( int verbose );
00089 
00090 #ifdef __cplusplus
00091 }
00092 #endif
00093 
00094 #endif /* pkcs5.h */