Hannes Tschofenig
/
aes-gcm-test-program
Example program to test AES-GCM functionality. Used for a workshop
SSL/include/polarssl/pem.h@0:796d0f61a05b, 2018-09-27 (annotated)
- Committer:
- HannesTschofenig
- Date:
- Thu Sep 27 06:34:22 2018 +0000
- Revision:
- 0:796d0f61a05b
Example AES-GCM test program
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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HannesTschofenig | 0:796d0f61a05b | 1 | /** |
HannesTschofenig | 0:796d0f61a05b | 2 | * \file pem.h |
HannesTschofenig | 0:796d0f61a05b | 3 | * |
HannesTschofenig | 0:796d0f61a05b | 4 | * \brief Privacy Enhanced Mail (PEM) decoding |
HannesTschofenig | 0:796d0f61a05b | 5 | * |
HannesTschofenig | 0:796d0f61a05b | 6 | * Copyright (C) 2006-2013, Brainspark B.V. |
HannesTschofenig | 0:796d0f61a05b | 7 | * |
HannesTschofenig | 0:796d0f61a05b | 8 | * This file is part of PolarSSL (http://www.polarssl.org) |
HannesTschofenig | 0:796d0f61a05b | 9 | * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> |
HannesTschofenig | 0:796d0f61a05b | 10 | * |
HannesTschofenig | 0:796d0f61a05b | 11 | * All rights reserved. |
HannesTschofenig | 0:796d0f61a05b | 12 | * |
HannesTschofenig | 0:796d0f61a05b | 13 | * This program is free software; you can redistribute it and/or modify |
HannesTschofenig | 0:796d0f61a05b | 14 | * it under the terms of the GNU General Public License as published by |
HannesTschofenig | 0:796d0f61a05b | 15 | * the Free Software Foundation; either version 2 of the License, or |
HannesTschofenig | 0:796d0f61a05b | 16 | * (at your option) any later version. |
HannesTschofenig | 0:796d0f61a05b | 17 | * |
HannesTschofenig | 0:796d0f61a05b | 18 | * This program is distributed in the hope that it will be useful, |
HannesTschofenig | 0:796d0f61a05b | 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
HannesTschofenig | 0:796d0f61a05b | 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
HannesTschofenig | 0:796d0f61a05b | 21 | * GNU General Public License for more details. |
HannesTschofenig | 0:796d0f61a05b | 22 | * |
HannesTschofenig | 0:796d0f61a05b | 23 | * You should have received a copy of the GNU General Public License along |
HannesTschofenig | 0:796d0f61a05b | 24 | * with this program; if not, write to the Free Software Foundation, Inc., |
HannesTschofenig | 0:796d0f61a05b | 25 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
HannesTschofenig | 0:796d0f61a05b | 26 | */ |
HannesTschofenig | 0:796d0f61a05b | 27 | #ifndef POLARSSL_PEM_H |
HannesTschofenig | 0:796d0f61a05b | 28 | #define POLARSSL_PEM_H |
HannesTschofenig | 0:796d0f61a05b | 29 | |
HannesTschofenig | 0:796d0f61a05b | 30 | #include <string.h> |
HannesTschofenig | 0:796d0f61a05b | 31 | |
HannesTschofenig | 0:796d0f61a05b | 32 | /** |
HannesTschofenig | 0:796d0f61a05b | 33 | * \name PEM Error codes |
HannesTschofenig | 0:796d0f61a05b | 34 | * These error codes are returned in case of errors reading the |
HannesTschofenig | 0:796d0f61a05b | 35 | * PEM data. |
HannesTschofenig | 0:796d0f61a05b | 36 | * \{ |
HannesTschofenig | 0:796d0f61a05b | 37 | */ |
HannesTschofenig | 0:796d0f61a05b | 38 | #define POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT -0x1080 /**< No PEM header or footer found. */ |
HannesTschofenig | 0:796d0f61a05b | 39 | #define POLARSSL_ERR_PEM_INVALID_DATA -0x1100 /**< PEM string is not as expected. */ |
HannesTschofenig | 0:796d0f61a05b | 40 | #define POLARSSL_ERR_PEM_MALLOC_FAILED -0x1180 /**< Failed to allocate memory. */ |
HannesTschofenig | 0:796d0f61a05b | 41 | #define POLARSSL_ERR_PEM_INVALID_ENC_IV -0x1200 /**< RSA IV is not in hex-format. */ |
HannesTschofenig | 0:796d0f61a05b | 42 | #define POLARSSL_ERR_PEM_UNKNOWN_ENC_ALG -0x1280 /**< Unsupported key encryption algorithm. */ |
HannesTschofenig | 0:796d0f61a05b | 43 | #define POLARSSL_ERR_PEM_PASSWORD_REQUIRED -0x1300 /**< Private key password can't be empty. */ |
HannesTschofenig | 0:796d0f61a05b | 44 | #define POLARSSL_ERR_PEM_PASSWORD_MISMATCH -0x1380 /**< Given private key password does not allow for correct decryption. */ |
HannesTschofenig | 0:796d0f61a05b | 45 | #define POLARSSL_ERR_PEM_FEATURE_UNAVAILABLE -0x1400 /**< Unavailable feature, e.g. hashing/encryption combination. */ |
HannesTschofenig | 0:796d0f61a05b | 46 | #define POLARSSL_ERR_PEM_BAD_INPUT_DATA -0x1480 /**< Bad input parameters to function. */ |
HannesTschofenig | 0:796d0f61a05b | 47 | /* \} name */ |
HannesTschofenig | 0:796d0f61a05b | 48 | |
HannesTschofenig | 0:796d0f61a05b | 49 | #ifdef __cplusplus |
HannesTschofenig | 0:796d0f61a05b | 50 | extern "C" { |
HannesTschofenig | 0:796d0f61a05b | 51 | #endif |
HannesTschofenig | 0:796d0f61a05b | 52 | |
HannesTschofenig | 0:796d0f61a05b | 53 | #if defined(POLARSSL_PEM_PARSE_C) |
HannesTschofenig | 0:796d0f61a05b | 54 | /** |
HannesTschofenig | 0:796d0f61a05b | 55 | * \brief PEM context structure |
HannesTschofenig | 0:796d0f61a05b | 56 | */ |
HannesTschofenig | 0:796d0f61a05b | 57 | typedef struct |
HannesTschofenig | 0:796d0f61a05b | 58 | { |
HannesTschofenig | 0:796d0f61a05b | 59 | unsigned char *buf; /*!< buffer for decoded data */ |
HannesTschofenig | 0:796d0f61a05b | 60 | size_t buflen; /*!< length of the buffer */ |
HannesTschofenig | 0:796d0f61a05b | 61 | unsigned char *info; /*!< buffer for extra header information */ |
HannesTschofenig | 0:796d0f61a05b | 62 | } |
HannesTschofenig | 0:796d0f61a05b | 63 | pem_context; |
HannesTschofenig | 0:796d0f61a05b | 64 | |
HannesTschofenig | 0:796d0f61a05b | 65 | /** |
HannesTschofenig | 0:796d0f61a05b | 66 | * \brief PEM context setup |
HannesTschofenig | 0:796d0f61a05b | 67 | * |
HannesTschofenig | 0:796d0f61a05b | 68 | * \param ctx context to be initialized |
HannesTschofenig | 0:796d0f61a05b | 69 | */ |
HannesTschofenig | 0:796d0f61a05b | 70 | void pem_init( pem_context *ctx ); |
HannesTschofenig | 0:796d0f61a05b | 71 | |
HannesTschofenig | 0:796d0f61a05b | 72 | /** |
HannesTschofenig | 0:796d0f61a05b | 73 | * \brief Read a buffer for PEM information and store the resulting |
HannesTschofenig | 0:796d0f61a05b | 74 | * data into the specified context buffers. |
HannesTschofenig | 0:796d0f61a05b | 75 | * |
HannesTschofenig | 0:796d0f61a05b | 76 | * \param ctx context to use |
HannesTschofenig | 0:796d0f61a05b | 77 | * \param header header string to seek and expect |
HannesTschofenig | 0:796d0f61a05b | 78 | * \param footer footer string to seek and expect |
HannesTschofenig | 0:796d0f61a05b | 79 | * \param data source data to look in |
HannesTschofenig | 0:796d0f61a05b | 80 | * \param pwd password for decryption (can be NULL) |
HannesTschofenig | 0:796d0f61a05b | 81 | * \param pwdlen length of password |
HannesTschofenig | 0:796d0f61a05b | 82 | * \param use_len destination for total length used (set after header is |
HannesTschofenig | 0:796d0f61a05b | 83 | * correctly read, so unless you get |
HannesTschofenig | 0:796d0f61a05b | 84 | * POLARSSL_ERR_PEM_BAD_INPUT_DATA or |
HannesTschofenig | 0:796d0f61a05b | 85 | * POLARSSL_ERR_PEM_NO_HEADER_FOOTER_PRESENT, use_len is |
HannesTschofenig | 0:796d0f61a05b | 86 | * the length to skip) |
HannesTschofenig | 0:796d0f61a05b | 87 | * |
HannesTschofenig | 0:796d0f61a05b | 88 | * \note Attempts to check password correctness by verifying if |
HannesTschofenig | 0:796d0f61a05b | 89 | * the decrypted text starts with an ASN.1 sequence of |
HannesTschofenig | 0:796d0f61a05b | 90 | * appropriate length |
HannesTschofenig | 0:796d0f61a05b | 91 | * |
HannesTschofenig | 0:796d0f61a05b | 92 | * \return 0 on success, or a specific PEM error code |
HannesTschofenig | 0:796d0f61a05b | 93 | */ |
HannesTschofenig | 0:796d0f61a05b | 94 | int pem_read_buffer( pem_context *ctx, const char *header, const char *footer, |
HannesTschofenig | 0:796d0f61a05b | 95 | const unsigned char *data, |
HannesTschofenig | 0:796d0f61a05b | 96 | const unsigned char *pwd, |
HannesTschofenig | 0:796d0f61a05b | 97 | size_t pwdlen, size_t *use_len ); |
HannesTschofenig | 0:796d0f61a05b | 98 | |
HannesTschofenig | 0:796d0f61a05b | 99 | /** |
HannesTschofenig | 0:796d0f61a05b | 100 | * \brief PEM context memory freeing |
HannesTschofenig | 0:796d0f61a05b | 101 | * |
HannesTschofenig | 0:796d0f61a05b | 102 | * \param ctx context to be freed |
HannesTschofenig | 0:796d0f61a05b | 103 | */ |
HannesTschofenig | 0:796d0f61a05b | 104 | void pem_free( pem_context *ctx ); |
HannesTschofenig | 0:796d0f61a05b | 105 | #endif /* POLARSSL_PEM_PARSE_C */ |
HannesTschofenig | 0:796d0f61a05b | 106 | |
HannesTschofenig | 0:796d0f61a05b | 107 | #if defined(POLARSSL_PEM_WRITE_C) |
HannesTschofenig | 0:796d0f61a05b | 108 | /** |
HannesTschofenig | 0:796d0f61a05b | 109 | * \brief Write a buffer of PEM information from a DER encoded |
HannesTschofenig | 0:796d0f61a05b | 110 | * buffer. |
HannesTschofenig | 0:796d0f61a05b | 111 | * |
HannesTschofenig | 0:796d0f61a05b | 112 | * \param header header string to write |
HannesTschofenig | 0:796d0f61a05b | 113 | * \param footer footer string to write |
HannesTschofenig | 0:796d0f61a05b | 114 | * \param der_data DER data to write |
HannesTschofenig | 0:796d0f61a05b | 115 | * \param der_len length of the DER data |
HannesTschofenig | 0:796d0f61a05b | 116 | * \param buf buffer to write to |
HannesTschofenig | 0:796d0f61a05b | 117 | * \param buf_len length of output buffer |
HannesTschofenig | 0:796d0f61a05b | 118 | * \param olen total length written / required (if buf_len is not enough) |
HannesTschofenig | 0:796d0f61a05b | 119 | * |
HannesTschofenig | 0:796d0f61a05b | 120 | * \return 0 on success, or a specific PEM or BASE64 error code. On |
HannesTschofenig | 0:796d0f61a05b | 121 | * POLARSSL_ERR_BASE64_BUFFER_TOO_SMALL olen is the required |
HannesTschofenig | 0:796d0f61a05b | 122 | * size. |
HannesTschofenig | 0:796d0f61a05b | 123 | */ |
HannesTschofenig | 0:796d0f61a05b | 124 | int pem_write_buffer( const char *header, const char *footer, |
HannesTschofenig | 0:796d0f61a05b | 125 | const unsigned char *der_data, size_t der_len, |
HannesTschofenig | 0:796d0f61a05b | 126 | unsigned char *buf, size_t buf_len, size_t *olen ); |
HannesTschofenig | 0:796d0f61a05b | 127 | #endif /* POLARSSL_PEM_WRITE_C */ |
HannesTschofenig | 0:796d0f61a05b | 128 | |
HannesTschofenig | 0:796d0f61a05b | 129 | #ifdef __cplusplus |
HannesTschofenig | 0:796d0f61a05b | 130 | } |
HannesTschofenig | 0:796d0f61a05b | 131 | #endif |
HannesTschofenig | 0:796d0f61a05b | 132 | |
HannesTschofenig | 0:796d0f61a05b | 133 | #endif /* pem.h */ |
HannesTschofenig | 0:796d0f61a05b | 134 | |
HannesTschofenig | 0:796d0f61a05b | 135 |