326 lines
11 KiB
C
326 lines
11 KiB
C
/*
|
|
* Key reading 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.
|
|
*/
|
|
|
|
#include "mbedtls/build_info.h"
|
|
|
|
#include "mbedtls/platform.h"
|
|
|
|
#if defined(MBEDTLS_BIGNUM_C) && \
|
|
defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_FS_IO) && \
|
|
defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_CTR_DRBG_C)
|
|
#include "mbedtls/error.h"
|
|
#include "mbedtls/rsa.h"
|
|
#include "mbedtls/pk.h"
|
|
#include "mbedtls/entropy.h"
|
|
#include "mbedtls/ctr_drbg.h"
|
|
|
|
#include <string.h>
|
|
#endif
|
|
|
|
#define MODE_NONE 0
|
|
#define MODE_PRIVATE 1
|
|
#define MODE_PUBLIC 2
|
|
|
|
#define DFL_MODE MODE_NONE
|
|
#define DFL_FILENAME "keyfile.key"
|
|
#define DFL_PASSWORD ""
|
|
#define DFL_PASSWORD_FILE ""
|
|
#define DFL_DEBUG_LEVEL 0
|
|
|
|
#define USAGE \
|
|
"\n usage: key_app param=<>...\n" \
|
|
"\n acceptable parameters:\n" \
|
|
" mode=private|public default: none\n" \
|
|
" filename=%%s default: keyfile.key\n" \
|
|
" password=%%s default: \"\"\n" \
|
|
" password_file=%%s default: \"\"\n" \
|
|
"\n"
|
|
|
|
#if !defined(MBEDTLS_BIGNUM_C) || \
|
|
!defined(MBEDTLS_PK_PARSE_C) || !defined(MBEDTLS_FS_IO) || \
|
|
!defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C)
|
|
int main(void)
|
|
{
|
|
mbedtls_printf("MBEDTLS_BIGNUM_C and/or "
|
|
"MBEDTLS_PK_PARSE_C and/or MBEDTLS_FS_IO and/or "
|
|
"MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C 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 */
|
|
const char *password; /* password for the private key */
|
|
const char *password_file; /* password_file for the private key */
|
|
} opt;
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int ret = 1;
|
|
int exit_code = MBEDTLS_EXIT_FAILURE;
|
|
char buf[1024];
|
|
int i;
|
|
char *p, *q;
|
|
|
|
const char *pers = "pkey/key_app";
|
|
mbedtls_entropy_context entropy;
|
|
mbedtls_ctr_drbg_context ctr_drbg;
|
|
|
|
mbedtls_pk_context pk;
|
|
mbedtls_mpi N, P, Q, D, E, DP, DQ, QP;
|
|
|
|
/*
|
|
* Set to sane values
|
|
*/
|
|
mbedtls_entropy_init(&entropy);
|
|
mbedtls_ctr_drbg_init(&ctr_drbg);
|
|
|
|
mbedtls_pk_init(&pk);
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
|
psa_status_t status = psa_crypto_init();
|
|
if (status != PSA_SUCCESS) {
|
|
mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n",
|
|
(int) status);
|
|
goto cleanup;
|
|
}
|
|
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
|
|
|
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 < 2) {
|
|
usage:
|
|
mbedtls_printf(USAGE);
|
|
goto cleanup;
|
|
}
|
|
|
|
opt.mode = DFL_MODE;
|
|
opt.filename = DFL_FILENAME;
|
|
opt.password = DFL_PASSWORD;
|
|
opt.password_file = DFL_PASSWORD_FILE;
|
|
|
|
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, "filename") == 0) {
|
|
opt.filename = q;
|
|
} else if (strcmp(p, "password") == 0) {
|
|
opt.password = q;
|
|
} else if (strcmp(p, "password_file") == 0) {
|
|
opt.password_file = q;
|
|
} else {
|
|
goto usage;
|
|
}
|
|
}
|
|
|
|
if (opt.mode == MODE_PRIVATE) {
|
|
if (strlen(opt.password) && strlen(opt.password_file)) {
|
|
mbedtls_printf("Error: cannot have both password and password_file\n");
|
|
goto usage;
|
|
}
|
|
|
|
if (strlen(opt.password_file)) {
|
|
FILE *f;
|
|
|
|
mbedtls_printf("\n . Loading the password file ...");
|
|
if ((f = fopen(opt.password_file, "rb")) == NULL) {
|
|
mbedtls_printf(" failed\n ! fopen returned NULL\n");
|
|
goto cleanup;
|
|
}
|
|
if (fgets(buf, sizeof(buf), f) == NULL) {
|
|
fclose(f);
|
|
mbedtls_printf("Error: fgets() failed to retrieve password\n");
|
|
goto cleanup;
|
|
}
|
|
fclose(f);
|
|
|
|
i = (int) strlen(buf);
|
|
if (buf[i - 1] == '\n') {
|
|
buf[i - 1] = '\0';
|
|
}
|
|
if (buf[i - 2] == '\r') {
|
|
buf[i - 2] = '\0';
|
|
}
|
|
opt.password = buf;
|
|
}
|
|
|
|
/*
|
|
* 1.1. Load the key
|
|
*/
|
|
mbedtls_printf("\n . Loading the private key ...");
|
|
fflush(stdout);
|
|
|
|
if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
|
|
(const unsigned char *) pers,
|
|
strlen(pers))) != 0) {
|
|
mbedtls_printf(" failed\n ! mbedtls_ctr_drbg_seed returned -0x%04x\n",
|
|
(unsigned int) -ret);
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = mbedtls_pk_parse_keyfile(&pk, opt.filename, opt.password,
|
|
mbedtls_ctr_drbg_random, &ctr_drbg);
|
|
|
|
if (ret != 0) {
|
|
mbedtls_printf(" failed\n ! mbedtls_pk_parse_keyfile returned -0x%04x\n",
|
|
(unsigned int) -ret);
|
|
goto cleanup;
|
|
}
|
|
|
|
mbedtls_printf(" ok\n");
|
|
|
|
/*
|
|
* 1.2 Print the key
|
|
*/
|
|
mbedtls_printf(" . Key information ...\n");
|
|
#if defined(MBEDTLS_RSA_C)
|
|
if (mbedtls_pk_get_type(&pk) == MBEDTLS_PK_RSA) {
|
|
mbedtls_rsa_context *rsa = mbedtls_pk_rsa(pk);
|
|
|
|
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 cleanup;
|
|
}
|
|
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("N: ", &N, 16, NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("E: ", &E, 16, NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("D: ", &D, 16, NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("P: ", &P, 16, NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("Q: ", &Q, 16, NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("DP: ", &DP, 16, NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("DQ: ", &DQ, 16, NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("QP: ", &QP, 16, NULL));
|
|
} else
|
|
#endif
|
|
#if defined(MBEDTLS_ECP_C)
|
|
if (mbedtls_pk_get_type(&pk) == MBEDTLS_PK_ECKEY) {
|
|
mbedtls_ecp_keypair *ecp = mbedtls_pk_ec(pk);
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("Q(X): ",
|
|
&ecp->MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(X), 16,
|
|
NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("Q(Y): ",
|
|
&ecp->MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(Y), 16,
|
|
NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("Q(Z): ",
|
|
&ecp->MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(Z), 16,
|
|
NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("D : ", &ecp->MBEDTLS_PRIVATE(d), 16, NULL));
|
|
} else
|
|
#endif
|
|
{
|
|
mbedtls_printf("Do not know how to print key information for this type\n");
|
|
goto cleanup;
|
|
}
|
|
} 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(&pk, opt.filename);
|
|
|
|
if (ret != 0) {
|
|
mbedtls_printf(" failed\n ! mbedtls_pk_parse_public_keyfile returned -0x%04x\n",
|
|
(unsigned int) -ret);
|
|
goto cleanup;
|
|
}
|
|
|
|
mbedtls_printf(" ok\n");
|
|
|
|
mbedtls_printf(" . Key information ...\n");
|
|
#if defined(MBEDTLS_RSA_C)
|
|
if (mbedtls_pk_get_type(&pk) == MBEDTLS_PK_RSA) {
|
|
mbedtls_rsa_context *rsa = mbedtls_pk_rsa(pk);
|
|
|
|
if ((ret = mbedtls_rsa_export(rsa, &N, NULL, NULL,
|
|
NULL, &E)) != 0) {
|
|
mbedtls_printf(" failed\n ! could not export RSA parameters\n\n");
|
|
goto cleanup;
|
|
}
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("N: ", &N, 16, NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("E: ", &E, 16, NULL));
|
|
} else
|
|
#endif
|
|
#if defined(MBEDTLS_ECP_C)
|
|
if (mbedtls_pk_get_type(&pk) == MBEDTLS_PK_ECKEY) {
|
|
mbedtls_ecp_keypair *ecp = mbedtls_pk_ec(pk);
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("Q(X): ",
|
|
&ecp->MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(X), 16,
|
|
NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("Q(Y): ",
|
|
&ecp->MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(Y), 16,
|
|
NULL));
|
|
MBEDTLS_MPI_CHK(mbedtls_mpi_write_file("Q(Z): ",
|
|
&ecp->MBEDTLS_PRIVATE(Q).MBEDTLS_PRIVATE(Z), 16,
|
|
NULL));
|
|
} else
|
|
#endif
|
|
{
|
|
mbedtls_printf("Do not know how to print key information for this type\n");
|
|
goto cleanup;
|
|
}
|
|
} else {
|
|
goto usage;
|
|
}
|
|
|
|
exit_code = MBEDTLS_EXIT_SUCCESS;
|
|
|
|
cleanup:
|
|
|
|
#if defined(MBEDTLS_ERROR_C)
|
|
if (exit_code != MBEDTLS_EXIT_SUCCESS) {
|
|
mbedtls_strerror(ret, buf, sizeof(buf));
|
|
mbedtls_printf(" ! Last error was: %s\n", buf);
|
|
}
|
|
#endif
|
|
|
|
mbedtls_ctr_drbg_free(&ctr_drbg);
|
|
mbedtls_entropy_free(&entropy);
|
|
mbedtls_pk_free(&pk);
|
|
mbedtls_psa_crypto_free();
|
|
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_exit(exit_code);
|
|
}
|
|
#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_PK_PARSE_C && MBEDTLS_FS_IO &&
|
|
MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C */
|