diff options
Diffstat (limited to 'lib/mbedtls-2.27.0/programs/pkey/key_app_writer.c')
| -rw-r--r-- | lib/mbedtls-2.27.0/programs/pkey/key_app_writer.c | 439 |
1 files changed, 439 insertions, 0 deletions
diff --git a/lib/mbedtls-2.27.0/programs/pkey/key_app_writer.c b/lib/mbedtls-2.27.0/programs/pkey/key_app_writer.c new file mode 100644 index 0000000..6a4d0e4 --- /dev/null +++ b/lib/mbedtls-2.27.0/programs/pkey/key_app_writer.c @@ -0,0 +1,439 @@ +/* + * Key writing application + * + * Copyright The Mbed TLS Contributors + * 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. + */ + +#if !defined(MBEDTLS_CONFIG_FILE) +#include "mbedtls/config.h" +#else +#include MBEDTLS_CONFIG_FILE +#endif + +#if defined(MBEDTLS_PLATFORM_C) +#include "mbedtls/platform.h" +#else +#include <stdio.h> +#include <stdlib.h> +#define mbedtls_printf printf +#define mbedtls_exit exit +#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS +#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE +#endif /* MBEDTLS_PLATFORM_C */ + +#if defined(MBEDTLS_PK_WRITE_C) && defined(MBEDTLS_FS_IO) +#include "mbedtls/error.h" +#include "mbedtls/pk.h" +#include "mbedtls/error.h" + +#include <stdio.h> +#include <string.h> +#endif + +#if defined(MBEDTLS_PEM_WRITE_C) +#define USAGE_OUT \ + " output_file=%%s default: keyfile.pem\n" \ + " output_format=pem|der default: pem\n" +#else +#define USAGE_OUT \ + " output_file=%%s default: keyfile.der\n" \ + " output_format=der default: der\n" +#endif + +#if defined(MBEDTLS_PEM_WRITE_C) +#define DFL_OUTPUT_FILENAME "keyfile.pem" +#define DFL_OUTPUT_FORMAT OUTPUT_FORMAT_PEM +#else +#define DFL_OUTPUT_FILENAME "keyfile.der" +#define DFL_OUTPUT_FORMAT OUTPUT_FORMAT_DER +#endif + +#define DFL_MODE MODE_NONE +#define DFL_FILENAME "keyfile.key" +#define DFL_DEBUG_LEVEL 0 +#define DFL_OUTPUT_MODE OUTPUT_MODE_NONE + +#define MODE_NONE 0 +#define MODE_PRIVATE 1 +#define MODE_PUBLIC 2 + +#define OUTPUT_MODE_NONE 0 +#define OUTPUT_MODE_PRIVATE 1 +#define OUTPUT_MODE_PUBLIC 2 + +#define OUTPUT_FORMAT_PEM 0 +#define OUTPUT_FORMAT_DER 1 + +#define USAGE \ + "\n usage: key_app_writer param=<>...\n" \ + "\n acceptable parameters:\n" \ + " mode=private|public default: none\n" \ + " filename=%%s default: keyfile.key\n" \ + " output_mode=private|public default: none\n" \ + USAGE_OUT \ + "\n" + +#if !defined(MBEDTLS_PK_PARSE_C) || \ + !defined(MBEDTLS_PK_WRITE_C) || \ + !defined(MBEDTLS_FS_IO) +int main( void ) +{ + mbedtls_printf( "MBEDTLS_PK_PARSE_C and/or MBEDTLS_PK_WRITE_C and/or MBEDTLS_FS_IO not defined.\n" ); + mbedtls_exit( 0 ); +} +#else + + +/* + * global options + */ +struct options +{ + int mode; /* the mode to run the application in */ + const char *filename; /* filename of the key file */ + int output_mode; /* the output mode to use */ + const char *output_file; /* where to store the constructed key file */ + int output_format; /* the output format to use */ +} opt; + +static int write_public_key( mbedtls_pk_context *key, const char *output_file ) +{ + int ret; + FILE *f; + unsigned char output_buf[16000]; + unsigned char *c = output_buf; + size_t len = 0; + + memset(output_buf, 0, 16000); + +#if defined(MBEDTLS_PEM_WRITE_C) + if( opt.output_format == OUTPUT_FORMAT_PEM ) + { + if( ( ret = mbedtls_pk_write_pubkey_pem( key, output_buf, 16000 ) ) != 0 ) + return( ret ); + + len = strlen( (char *) output_buf ); + } + else +#endif + { + if( ( ret = mbedtls_pk_write_pubkey_der( key, output_buf, 16000 ) ) < 0 ) + return( ret ); + + len = ret; + c = output_buf + sizeof(output_buf) - len; + } + + if( ( f = fopen( output_file, "w" ) ) == NULL ) + return( -1 ); + + if( fwrite( c, 1, len, f ) != len ) + { + fclose( f ); + return( -1 ); + } + + fclose( f ); + + return( 0 ); +} + +static int write_private_key( mbedtls_pk_context *key, const char *output_file ) +{ + int ret; + FILE *f; + unsigned char output_buf[16000]; + unsigned char *c = output_buf; + size_t len = 0; + + memset(output_buf, 0, 16000); + +#if defined(MBEDTLS_PEM_WRITE_C) + if( opt.output_format == OUTPUT_FORMAT_PEM ) + { + if( ( ret = mbedtls_pk_write_key_pem( key, output_buf, 16000 ) ) != 0 ) + return( ret ); + + len = strlen( (char *) output_buf ); + } + else +#endif + { + if( ( ret = mbedtls_pk_write_key_der( key, output_buf, 16000 ) ) < 0 ) + return( ret ); + + len = ret; + c = output_buf + sizeof(output_buf) - len; + } + + if( ( f = fopen( output_file, "w" ) ) == NULL ) + return( -1 ); + + if( fwrite( c, 1, len, f ) != len ) + { + fclose( f ); + return( -1 ); + } + + fclose( f ); + + return( 0 ); +} + +int main( int argc, char *argv[] ) +{ + int ret = 1; + int exit_code = MBEDTLS_EXIT_FAILURE; + char buf[1024]; + int i; + char *p, *q; + + mbedtls_pk_context key; + mbedtls_mpi N, P, Q, D, E, DP, DQ, QP; + + /* + * Set to sane values + */ + mbedtls_pk_init( &key ); + memset( buf, 0, sizeof( buf ) ); + + mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q ); + mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &DP ); + mbedtls_mpi_init( &DQ ); mbedtls_mpi_init( &QP ); + + if( argc == 0 ) + { + usage: + mbedtls_printf( USAGE ); + goto exit; + } + + opt.mode = DFL_MODE; + opt.filename = DFL_FILENAME; + opt.output_mode = DFL_OUTPUT_MODE; + opt.output_file = DFL_OUTPUT_FILENAME; + opt.output_format = DFL_OUTPUT_FORMAT; + + for( i = 1; i < argc; i++ ) + { + p = argv[i]; + if( ( q = strchr( p, '=' ) ) == NULL ) + goto usage; + *q++ = '\0'; + + if( strcmp( p, "mode" ) == 0 ) + { + if( strcmp( q, "private" ) == 0 ) + opt.mode = MODE_PRIVATE; + else if( strcmp( q, "public" ) == 0 ) + opt.mode = MODE_PUBLIC; + else + goto usage; + } + else if( strcmp( p, "output_mode" ) == 0 ) + { + if( strcmp( q, "private" ) == 0 ) + opt.output_mode = OUTPUT_MODE_PRIVATE; + else if( strcmp( q, "public" ) == 0 ) + opt.output_mode = OUTPUT_MODE_PUBLIC; + else + goto usage; + } + else if( strcmp( p, "output_format" ) == 0 ) + { +#if defined(MBEDTLS_PEM_WRITE_C) + if( strcmp( q, "pem" ) == 0 ) + opt.output_format = OUTPUT_FORMAT_PEM; + else +#endif + if( strcmp( q, "der" ) == 0 ) + opt.output_format = OUTPUT_FORMAT_DER; + else + goto usage; + } + else if( strcmp( p, "filename" ) == 0 ) + opt.filename = q; + else if( strcmp( p, "output_file" ) == 0 ) + opt.output_file = q; + else + goto usage; + } + + if( opt.mode == MODE_NONE && opt.output_mode != OUTPUT_MODE_NONE ) + { + mbedtls_printf( "\nCannot output a key without reading one.\n"); + goto exit; + } + + if( opt.mode == MODE_PUBLIC && opt.output_mode == OUTPUT_MODE_PRIVATE ) + { + mbedtls_printf( "\nCannot output a private key from a public key.\n"); + goto exit; + } + + if( opt.mode == MODE_PRIVATE ) + { + /* + * 1.1. Load the key + */ + mbedtls_printf( "\n . Loading the private key ..." ); + fflush( stdout ); + + ret = mbedtls_pk_parse_keyfile( &key, opt.filename, NULL ); + + if( ret != 0 ) + { + mbedtls_strerror( ret, (char *) buf, sizeof(buf) ); + mbedtls_printf( " failed\n ! mbedtls_pk_parse_keyfile returned -0x%04x - %s\n\n", (unsigned int) -ret, buf ); + goto exit; + } + + mbedtls_printf( " ok\n" ); + + /* + * 1.2 Print the key + */ + mbedtls_printf( " . Key information ...\n" ); + +#if defined(MBEDTLS_RSA_C) + if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_RSA ) + { + mbedtls_rsa_context *rsa = mbedtls_pk_rsa( key ); + + if( ( ret = mbedtls_rsa_export ( rsa, &N, &P, &Q, &D, &E ) ) != 0 || + ( ret = mbedtls_rsa_export_crt( rsa, &DP, &DQ, &QP ) ) != 0 ) + { + mbedtls_printf( " failed\n ! could not export RSA parameters\n\n" ); + goto exit; + } + + mbedtls_mpi_write_file( "N: ", &N, 16, NULL ); + mbedtls_mpi_write_file( "E: ", &E, 16, NULL ); + mbedtls_mpi_write_file( "D: ", &D, 16, NULL ); + mbedtls_mpi_write_file( "P: ", &P, 16, NULL ); + mbedtls_mpi_write_file( "Q: ", &Q, 16, NULL ); + mbedtls_mpi_write_file( "DP: ", &DP, 16, NULL ); + mbedtls_mpi_write_file( "DQ: ", &DQ, 16, NULL ); + mbedtls_mpi_write_file( "QP: ", &QP, 16, NULL ); + } + else +#endif +#if defined(MBEDTLS_ECP_C) + if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_ECKEY ) + { + mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( key ); + mbedtls_mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL ); + mbedtls_mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL ); + mbedtls_mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL ); + mbedtls_mpi_write_file( "D : ", &ecp->d , 16, NULL ); + } + else +#endif + mbedtls_printf("key type not supported yet\n"); + + } + else if( opt.mode == MODE_PUBLIC ) + { + /* + * 1.1. Load the key + */ + mbedtls_printf( "\n . Loading the public key ..." ); + fflush( stdout ); + + ret = mbedtls_pk_parse_public_keyfile( &key, opt.filename ); + + if( ret != 0 ) + { + mbedtls_strerror( ret, (char *) buf, sizeof(buf) ); + mbedtls_printf( " failed\n ! mbedtls_pk_parse_public_key returned -0x%04x - %s\n\n", (unsigned int) -ret, buf ); + goto exit; + } + + mbedtls_printf( " ok\n" ); + + /* + * 1.2 Print the key + */ + mbedtls_printf( " . Key information ...\n" ); + +#if defined(MBEDTLS_RSA_C) + if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_RSA ) + { + mbedtls_rsa_context *rsa = mbedtls_pk_rsa( key ); + + if( ( ret = mbedtls_rsa_export( rsa, &N, NULL, NULL, + NULL, &E ) ) != 0 ) + { + mbedtls_printf( " failed\n ! could not export RSA parameters\n\n" ); + goto exit; + } + mbedtls_mpi_write_file( "N: ", &N, 16, NULL ); + mbedtls_mpi_write_file( "E: ", &E, 16, NULL ); + } + else +#endif +#if defined(MBEDTLS_ECP_C) + if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_ECKEY ) + { + mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( key ); + mbedtls_mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL ); + mbedtls_mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL ); + mbedtls_mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL ); + } + else +#endif + mbedtls_printf("key type not supported yet\n"); + } + else + goto usage; + + if( opt.output_mode == OUTPUT_MODE_PUBLIC ) + { + write_public_key( &key, opt.output_file ); + } + if( opt.output_mode == OUTPUT_MODE_PRIVATE ) + { + write_private_key( &key, opt.output_file ); + } + + exit_code = MBEDTLS_EXIT_SUCCESS; + +exit: + + if( exit_code != MBEDTLS_EXIT_SUCCESS ) + { +#ifdef MBEDTLS_ERROR_C + mbedtls_strerror( ret, buf, sizeof( buf ) ); + mbedtls_printf( " - %s\n", buf ); +#else + mbedtls_printf("\n"); +#endif + } + + mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q ); + mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &DP ); + mbedtls_mpi_free( &DQ ); mbedtls_mpi_free( &QP ); + + mbedtls_pk_free( &key ); + +#if defined(_WIN32) + mbedtls_printf( " + Press Enter to exit this program.\n" ); + fflush( stdout ); getchar(); +#endif + + mbedtls_exit( exit_code ); +} +#endif /* MBEDTLS_PK_PARSE_C && MBEDTLS_PK_WRITE_C && MBEDTLS_FS_IO */ |