Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Public key-based signature creation program |
| 3 | * |
Bence Szépkúti | 1e14827 | 2020-08-07 13:07:28 +0200 | [diff] [blame] | 4 | * Copyright The Mbed TLS Contributors |
Manuel Pégourié-Gonnard | 37ff140 | 2015-09-04 14:21:07 +0200 | [diff] [blame] | 5 | * SPDX-License-Identifier: Apache-2.0 |
| 6 | * |
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 8 | * not use this file except in compliance with the License. |
| 9 | * You may obtain a copy of the License at |
| 10 | * |
| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | * |
| 13 | * Unless required by applicable law or agreed to in writing, software |
| 14 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 15 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | * See the License for the specific language governing permissions and |
| 17 | * limitations under the License. |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 18 | */ |
| 19 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 20 | #if !defined(MBEDTLS_CONFIG_FILE) |
Manuel Pégourié-Gonnard | 7f80997 | 2015-03-09 17:05:11 +0000 | [diff] [blame] | 21 | #include "mbedtls/config.h" |
Manuel Pégourié-Gonnard | cef4ad2 | 2014-04-29 12:39:06 +0200 | [diff] [blame] | 22 | #else |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 23 | #include MBEDTLS_CONFIG_FILE |
Manuel Pégourié-Gonnard | cef4ad2 | 2014-04-29 12:39:06 +0200 | [diff] [blame] | 24 | #endif |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 25 | |
Manuel Pégourié-Gonnard | 7f80997 | 2015-03-09 17:05:11 +0000 | [diff] [blame] | 26 | #include "mbedtls/platform.h" |
Rich Evans | f90016a | 2015-01-19 14:26:37 +0000 | [diff] [blame] | 27 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 28 | #if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) || \ |
Manuel Pégourié-Gonnard | 06d5d61 | 2015-05-28 16:23:18 +0200 | [diff] [blame] | 29 | !defined(MBEDTLS_SHA256_C) || !defined(MBEDTLS_MD_C) || \ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 30 | !defined(MBEDTLS_PK_PARSE_C) || !defined(MBEDTLS_FS_IO) || \ |
| 31 | !defined(MBEDTLS_CTR_DRBG_C) |
Rich Evans | 85b05ec | 2015-02-12 11:37:29 +0000 | [diff] [blame] | 32 | int main( void ) |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 33 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 34 | mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_ENTROPY_C and/or " |
Manuel Pégourié-Gonnard | 2ed05a0 | 2015-09-09 11:52:28 +0200 | [diff] [blame] | 35 | "MBEDTLS_SHA256_C and/or MBEDTLS_MD_C and/or " |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 36 | "MBEDTLS_PK_PARSE_C and/or MBEDTLS_FS_IO and/or " |
| 37 | "MBEDTLS_CTR_DRBG_C not defined.\n"); |
Krzysztof Stachowiak | 5e1b195 | 2019-04-24 14:24:46 +0200 | [diff] [blame] | 38 | mbedtls_exit( 0 ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 39 | } |
| 40 | #else |
Manuel Pégourié-Gonnard | 06d5d61 | 2015-05-28 16:23:18 +0200 | [diff] [blame] | 41 | |
| 42 | #include "mbedtls/error.h" |
| 43 | #include "mbedtls/entropy.h" |
| 44 | #include "mbedtls/ctr_drbg.h" |
| 45 | #include "mbedtls/md.h" |
| 46 | #include "mbedtls/pk.h" |
| 47 | |
| 48 | #include <stdio.h> |
| 49 | #include <string.h> |
| 50 | |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 51 | int main( int argc, char *argv[] ) |
| 52 | { |
| 53 | FILE *f; |
Paul Bakker | 0c22610 | 2014-04-17 16:02:36 +0200 | [diff] [blame] | 54 | int ret = 1; |
Andres Amaya Garcia | 82b2726 | 2018-04-29 22:26:25 +0100 | [diff] [blame] | 55 | int exit_code = MBEDTLS_EXIT_FAILURE; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 56 | mbedtls_pk_context pk; |
| 57 | mbedtls_entropy_context entropy; |
| 58 | mbedtls_ctr_drbg_context ctr_drbg; |
Manuel Pégourié-Gonnard | 102a620 | 2015-08-27 21:51:44 +0200 | [diff] [blame] | 59 | unsigned char hash[32]; |
Gilles Peskine | 96a7cd1 | 2019-11-08 19:22:35 +0100 | [diff] [blame] | 60 | unsigned char buf[MBEDTLS_PK_SIGNATURE_MAX_SIZE]; |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 61 | char filename[512]; |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 62 | const char *pers = "mbedtls_pk_sign"; |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 63 | size_t olen = 0; |
| 64 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 65 | mbedtls_entropy_init( &entropy ); |
Manuel Pégourié-Gonnard | ec160c0 | 2015-04-28 22:52:30 +0200 | [diff] [blame] | 66 | mbedtls_ctr_drbg_init( &ctr_drbg ); |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 67 | mbedtls_pk_init( &pk ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 68 | |
| 69 | if( argc != 3 ) |
| 70 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 71 | mbedtls_printf( "usage: mbedtls_pk_sign <key_file> <filename>\n" ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 72 | |
| 73 | #if defined(_WIN32) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 74 | mbedtls_printf( "\n" ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 75 | #endif |
| 76 | |
| 77 | goto exit; |
| 78 | } |
| 79 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 80 | mbedtls_printf( "\n . Seeding the random number generator..." ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 81 | fflush( stdout ); |
| 82 | |
Manuel Pégourié-Gonnard | ec160c0 | 2015-04-28 22:52:30 +0200 | [diff] [blame] | 83 | if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy, |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 84 | (const unsigned char *) pers, |
| 85 | strlen( pers ) ) ) != 0 ) |
| 86 | { |
Kenneth Soerensen | 518d435 | 2020-04-01 17:22:45 +0200 | [diff] [blame] | 87 | mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%04x\n", (unsigned int) -ret ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 88 | goto exit; |
| 89 | } |
| 90 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 91 | mbedtls_printf( "\n . Reading private key from '%s'", argv[1] ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 92 | fflush( stdout ); |
| 93 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 94 | if( ( ret = mbedtls_pk_parse_keyfile( &pk, argv[1], "" ) ) != 0 ) |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 95 | { |
Kevin Luty | 1e7059f | 2018-03-21 10:01:38 -0500 | [diff] [blame] | 96 | mbedtls_printf( " failed\n ! Could not parse '%s'\n", argv[1] ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 97 | goto exit; |
| 98 | } |
| 99 | |
| 100 | /* |
Manuel Pégourié-Gonnard | 6f60cd8 | 2015-02-10 10:47:03 +0000 | [diff] [blame] | 101 | * Compute the SHA-256 hash of the input file, |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 102 | * then calculate the signature of the hash. |
| 103 | */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 104 | mbedtls_printf( "\n . Generating the SHA-256 signature" ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 105 | fflush( stdout ); |
| 106 | |
Manuel Pégourié-Gonnard | 06d5d61 | 2015-05-28 16:23:18 +0200 | [diff] [blame] | 107 | if( ( ret = mbedtls_md_file( |
| 108 | mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ), |
| 109 | argv[2], hash ) ) != 0 ) |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 110 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 111 | mbedtls_printf( " failed\n ! Could not open or read %s\n\n", argv[2] ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 112 | goto exit; |
| 113 | } |
| 114 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 115 | if( ( ret = mbedtls_pk_sign( &pk, MBEDTLS_MD_SHA256, hash, 0, buf, &olen, |
| 116 | mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 ) |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 117 | { |
Kenneth Soerensen | 518d435 | 2020-04-01 17:22:45 +0200 | [diff] [blame] | 118 | mbedtls_printf( " failed\n ! mbedtls_pk_sign returned -0x%04x\n", (unsigned int) -ret ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 119 | goto exit; |
| 120 | } |
| 121 | |
| 122 | /* |
Manuel Pégourié-Gonnard | 1d8f2da | 2015-08-27 21:42:27 +0200 | [diff] [blame] | 123 | * Write the signature into <filename>.sig |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 124 | */ |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 125 | mbedtls_snprintf( filename, sizeof(filename), "%s.sig", argv[2] ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 126 | |
| 127 | if( ( f = fopen( filename, "wb+" ) ) == NULL ) |
| 128 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 129 | mbedtls_printf( " failed\n ! Could not create %s\n\n", filename ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 130 | goto exit; |
| 131 | } |
| 132 | |
| 133 | if( fwrite( buf, 1, olen, f ) != olen ) |
| 134 | { |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 135 | mbedtls_printf( "failed\n ! fwrite failed\n\n" ); |
Janos Follath | 98e28a7 | 2016-05-31 14:03:54 +0100 | [diff] [blame] | 136 | fclose( f ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 137 | goto exit; |
| 138 | } |
| 139 | |
| 140 | fclose( f ); |
| 141 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 142 | mbedtls_printf( "\n . Done (created \"%s\")\n\n", filename ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 143 | |
Andres Amaya Garcia | 82b2726 | 2018-04-29 22:26:25 +0100 | [diff] [blame] | 144 | exit_code = MBEDTLS_EXIT_SUCCESS; |
| 145 | |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 146 | exit: |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 147 | mbedtls_pk_free( &pk ); |
| 148 | mbedtls_ctr_drbg_free( &ctr_drbg ); |
| 149 | mbedtls_entropy_free( &entropy ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 150 | |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 151 | #if defined(MBEDTLS_ERROR_C) |
Andres Amaya Garcia | 82b2726 | 2018-04-29 22:26:25 +0100 | [diff] [blame] | 152 | if( exit_code != MBEDTLS_EXIT_SUCCESS ) |
Manuel Pégourié-Gonnard | cf9ab63 | 2015-08-27 22:03:33 +0200 | [diff] [blame] | 153 | { |
| 154 | mbedtls_strerror( ret, (char *) buf, sizeof(buf) ); |
| 155 | mbedtls_printf( " ! Last error was: %s\n", buf ); |
| 156 | } |
Manuel Pégourié-Gonnard | 92e5b59 | 2013-09-18 18:57:10 +0200 | [diff] [blame] | 157 | #endif |
| 158 | |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 159 | #if defined(_WIN32) |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 160 | mbedtls_printf( " + Press Enter to exit this program.\n" ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 161 | fflush( stdout ); getchar(); |
| 162 | #endif |
| 163 | |
Krzysztof Stachowiak | 5e1b195 | 2019-04-24 14:24:46 +0200 | [diff] [blame] | 164 | mbedtls_exit( exit_code ); |
Paul Bakker | 940f9ce | 2013-09-18 15:34:57 +0200 | [diff] [blame] | 165 | } |
Manuel Pégourié-Gonnard | 2cf5a7c | 2015-04-08 12:49:31 +0200 | [diff] [blame] | 166 | #endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && |
| 167 | MBEDTLS_SHA256_C && MBEDTLS_PK_PARSE_C && MBEDTLS_FS_IO && |
| 168 | MBEDTLS_CTR_DRBG_C */ |