/usr/include/mbedtls/pem.h is in libmbedtls-dev 2.8.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | /**
* \file pem.h
*
* \brief Privacy Enhanced Mail (PEM) decoding
*/
/*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef MBEDTLS_PEM_H
#define MBEDTLS_PEM_H
#include <stddef.h>
/**
* \name PEM Error codes
* These error codes are returned in case of errors reading the
* PEM data.
* \{
*/
#define MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT -0x1080 /**< No PEM header or footer found. */
#define MBEDTLS_ERR_PEM_INVALID_DATA -0x1100 /**< PEM string is not as expected. */
#define MBEDTLS_ERR_PEM_ALLOC_FAILED -0x1180 /**< Failed to allocate memory. */
#define MBEDTLS_ERR_PEM_INVALID_ENC_IV -0x1200 /**< RSA IV is not in hex-format. */
#define MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG -0x1280 /**< Unsupported key encryption algorithm. */
#define MBEDTLS_ERR_PEM_PASSWORD_REQUIRED -0x1300 /**< Private key password can't be empty. */
#define MBEDTLS_ERR_PEM_PASSWORD_MISMATCH -0x1380 /**< Given private key password does not allow for correct decryption. */
#define MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE -0x1400 /**< Unavailable feature, e.g. hashing/encryption combination. */
#define MBEDTLS_ERR_PEM_BAD_INPUT_DATA -0x1480 /**< Bad input parameters to function. */
/* \} name */
#ifdef __cplusplus
extern "C" {
#endif
#if defined(MBEDTLS_PEM_PARSE_C)
/**
* \brief PEM context structure
*/
typedef struct
{
unsigned char *buf; /*!< buffer for decoded data */
size_t buflen; /*!< length of the buffer */
unsigned char *info; /*!< buffer for extra header information */
}
mbedtls_pem_context;
/**
* \brief PEM context setup
*
* \param ctx context to be initialized
*/
void mbedtls_pem_init( mbedtls_pem_context *ctx );
/**
* \brief Read a buffer for PEM information and store the resulting
* data into the specified context buffers.
*
* \param ctx context to use
* \param header header string to seek and expect
* \param footer footer string to seek and expect
* \param data source data to look in (must be nul-terminated)
* \param pwd password for decryption (can be NULL)
* \param pwdlen length of password
* \param use_len destination for total length used (set after header is
* correctly read, so unless you get
* MBEDTLS_ERR_PEM_BAD_INPUT_DATA or
* MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT, use_len is
* the length to skip)
*
* \note Attempts to check password correctness by verifying if
* the decrypted text starts with an ASN.1 sequence of
* appropriate length
*
* \return 0 on success, or a specific PEM error code
*/
int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const char *footer,
const unsigned char *data,
const unsigned char *pwd,
size_t pwdlen, size_t *use_len );
/**
* \brief PEM context memory freeing
*
* \param ctx context to be freed
*/
void mbedtls_pem_free( mbedtls_pem_context *ctx );
#endif /* MBEDTLS_PEM_PARSE_C */
#if defined(MBEDTLS_PEM_WRITE_C)
/**
* \brief Write a buffer of PEM information from a DER encoded
* buffer.
*
* \param header header string to write
* \param footer footer string to write
* \param der_data DER data to write
* \param der_len length of the DER data
* \param buf buffer to write to
* \param buf_len length of output buffer
* \param olen total length written / required (if buf_len is not enough)
*
* \return 0 on success, or a specific PEM or BASE64 error code. On
* MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL olen is the required
* size.
*/
int mbedtls_pem_write_buffer( const char *header, const char *footer,
const unsigned char *der_data, size_t der_len,
unsigned char *buf, size_t buf_len, size_t *olen );
#endif /* MBEDTLS_PEM_WRITE_C */
#ifdef __cplusplus
}
#endif
#endif /* pem.h */
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