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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/skiboot/libstb/crypto/mbedtls/programs/pkey/mpi_demo.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/skiboot/libstb/crypto/mbedtls/programs/pkey/mpi_demo.c')
-rw-r--r-- | roms/skiboot/libstb/crypto/mbedtls/programs/pkey/mpi_demo.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/roms/skiboot/libstb/crypto/mbedtls/programs/pkey/mpi_demo.c b/roms/skiboot/libstb/crypto/mbedtls/programs/pkey/mpi_demo.c new file mode 100644 index 000000000..80573c0ed --- /dev/null +++ b/roms/skiboot/libstb/crypto/mbedtls/programs/pkey/mpi_demo.c @@ -0,0 +1,128 @@ +/* + * Simple MPI demonstration program + * + * 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) + */ + +#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_BIGNUM_C) && defined(MBEDTLS_FS_IO) +#include "mbedtls/bignum.h" + +#include <stdio.h> +#endif + +#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_FS_IO) +int main( void ) +{ + mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_FS_IO not defined.\n"); + return( 0 ); +} +#else + +#if defined(MBEDTLS_CHECK_PARAMS) +#include "mbedtls/platform_util.h" +void mbedtls_param_failed( const char *failure_condition, + const char *file, + int line ) +{ + mbedtls_printf( "%s:%i: Input param failed - %s\n", + file, line, failure_condition ); + mbedtls_exit( MBEDTLS_EXIT_FAILURE ); +} +#endif + +int main( void ) +{ + int ret = 1; + int exit_code = MBEDTLS_EXIT_FAILURE; + mbedtls_mpi E, P, Q, N, H, D, X, Y, Z; + + mbedtls_mpi_init( &E ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q ); mbedtls_mpi_init( &N ); + mbedtls_mpi_init( &H ); mbedtls_mpi_init( &D ); mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y ); + mbedtls_mpi_init( &Z ); + + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &P, 10, "2789" ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &Q, 10, "3203" ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &E, 10, "257" ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &N, &P, &Q ) ); + + mbedtls_printf( "\n Public key:\n\n" ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( " N = ", &N, 10, NULL ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( " E = ", &E, 10, NULL ) ); + + mbedtls_printf( "\n Private key:\n\n" ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( " P = ", &P, 10, NULL ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( " Q = ", &Q, 10, NULL ) ); + +#if defined(MBEDTLS_GENPRIME) + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &P, &P, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &Q, &Q, 1 ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &H, &P, &Q ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &D, &E, &H ) ); + + mbedtls_mpi_write_file( " D = E^-1 mod (P-1)*(Q-1) = ", + &D, 10, NULL ); +#else + mbedtls_printf("\nTest skipped (MBEDTLS_GENPRIME not defined).\n\n"); +#endif + MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &X, 10, "55555" ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &Y, &X, &E, &N, NULL ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &Z, &Y, &D, &N, NULL ) ); + + mbedtls_printf( "\n RSA operation:\n\n" ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( " X (plaintext) = ", &X, 10, NULL ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( " Y (ciphertext) = X^E mod N = ", &Y, 10, NULL ) ); + MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( " Z (decrypted) = Y^D mod N = ", &Z, 10, NULL ) ); + mbedtls_printf( "\n" ); + + exit_code = MBEDTLS_EXIT_SUCCESS; + +cleanup: + mbedtls_mpi_free( &E ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q ); mbedtls_mpi_free( &N ); + mbedtls_mpi_free( &H ); mbedtls_mpi_free( &D ); mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y ); + mbedtls_mpi_free( &Z ); + + if( exit_code != MBEDTLS_EXIT_SUCCESS ) + { + mbedtls_printf( "\nAn error occurred.\n" ); + } + +#if defined(_WIN32) + mbedtls_printf( " Press Enter to exit this program.\n" ); + fflush( stdout ); getchar(); +#endif + + return( exit_code ); +} +#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_FS_IO */ |