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mbedtls/tests/suites/test_suite_pkcs7.function
Nick Child 62b2d7e7d4 pkcs7: Support verification of hash with multiple signers 
Make `mbedtls_pkcs7_signed_hash_verify` loop over all signatures in the
PKCS7 structure and return success if any of them verify successfully.

Signed-off-by: Nick Child <nick.child@ibm.com>
2022-09-01 19:45:41 -05:00

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/* BEGIN_HEADER */
#include "mbedtls/bignum.h"
#include "mbedtls/pkcs7.h"
#include "mbedtls/x509.h"
#include "mbedtls/x509_crt.h"
#include "mbedtls/x509_crl.h"
#include "mbedtls/oid.h"
#include "sys/types.h"
#include "sys/stat.h"
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_PKCS7_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_RSA_C */
void pkcs7_parse( char *pkcs7_file )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init( &pkcs7 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_PKCS7_SIGNED_DATA );
exit:
mbedtls_free( pkcs7_buf );
mbedtls_pkcs7_free( &pkcs7 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO */
void pkcs7_parse_without_cert( char *pkcs7_file )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init( &pkcs7 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_PKCS7_SIGNED_DATA );
exit:
mbedtls_free( pkcs7_buf );
mbedtls_pkcs7_free( &pkcs7 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_RSA_C */
void pkcs7_parse_multiple_certs( char *pkcs7_file )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init( &pkcs7 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_ERR_PKCS7_INVALID_CERT );
exit:
mbedtls_free( pkcs7_buf );
mbedtls_pkcs7_free( &pkcs7 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_RSA_C */
void pkcs7_parse_corrupted_cert( char *pkcs7_file )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init( &pkcs7 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_ERR_PKCS7_INVALID_CERT );
exit:
mbedtls_free( pkcs7_buf );
mbedtls_pkcs7_free( &pkcs7 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_RSA_C */
void pkcs7_parse_corrupted_signer_info( char *pkcs7_file )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init( &pkcs7 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res < 0 );
exit:
mbedtls_free( pkcs7_buf );
mbedtls_pkcs7_free( &pkcs7 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO */
void pkcs7_parse_version( char *pkcs7_file )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init( &pkcs7 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_ERR_PKCS7_INVALID_VERSION );
exit:
mbedtls_free( pkcs7_buf );
mbedtls_pkcs7_free( &pkcs7 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO */
void pkcs7_parse_content_oid( char *pkcs7_file )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init( &pkcs7 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen);
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res != 0 );
TEST_ASSERT( res == MBEDTLS_ERR_PKCS7_FEATURE_UNAVAILABLE );
exit:
mbedtls_free( pkcs7_buf );
mbedtls_pkcs7_free( &pkcs7 );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_PKCS1_V15:MBEDTLS_RSA_C */
void pkcs7_verify( char *pkcs7_file, char *crt, char *filetobesigned )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
unsigned char *data = NULL;
struct stat st;
size_t datalen;
int res;
FILE *file;
mbedtls_pkcs7 pkcs7;
mbedtls_x509_crt x509;
USE_PSA_INIT();
mbedtls_pkcs7_init( &pkcs7 );
mbedtls_x509_crt_init( &x509 );
res = mbedtls_x509_crt_parse_file( &x509, crt );
TEST_ASSERT( res == 0 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_PKCS7_SIGNED_DATA );
mbedtls_free( pkcs7_buf );
res = stat( filetobesigned, &st );
TEST_ASSERT( res == 0 );
file = fopen( filetobesigned, "rb" );
TEST_ASSERT( file != NULL );
datalen = st.st_size;
data = mbedtls_calloc( datalen, 1 );
buflen = fread( ( void * )data , sizeof( unsigned char ), datalen, file );
TEST_ASSERT( buflen == datalen);
fclose(file);
res = mbedtls_pkcs7_signed_data_verify( &pkcs7, &x509, data, datalen );
TEST_ASSERT( res == 0 );
exit:
mbedtls_x509_crt_free( &x509 );
mbedtls_free( data );
mbedtls_pkcs7_free( &pkcs7 );
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_PKCS1_V15:MBEDTLS_RSA_C:MBEDTLS_SHA256_C */
void pkcs7_verify_hash( char *pkcs7_file, char *crt, char *filetobesigned )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
unsigned char *data = NULL;
unsigned char hash[32];
struct stat st;
size_t datalen;
int res;
FILE *file;
const mbedtls_md_info_t *md_info;
mbedtls_md_type_t md_alg;
mbedtls_pkcs7 pkcs7;
mbedtls_x509_crt x509;
USE_PSA_INIT();
mbedtls_pkcs7_init( &pkcs7 );
mbedtls_x509_crt_init( &x509 );
res = mbedtls_x509_crt_parse_file( &x509, crt );
TEST_ASSERT( res == 0 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_PKCS7_SIGNED_DATA );
res = stat( filetobesigned, &st );
TEST_ASSERT( res == 0 );
file = fopen( filetobesigned, "rb" );
TEST_ASSERT( file != NULL );
datalen = st.st_size;
data = mbedtls_calloc( datalen, 1 );
TEST_ASSERT( data != NULL);
buflen = fread( (void *)data , sizeof( unsigned char ), datalen, file );
TEST_ASSERT( buflen == datalen);
fclose( file );
res = mbedtls_oid_get_md_alg( &(pkcs7.signed_data.digest_alg_identifiers), &md_alg );
TEST_ASSERT( res == 0 );
TEST_ASSERT( md_alg == MBEDTLS_MD_SHA256 );
md_info = mbedtls_md_info_from_type( md_alg );
res = mbedtls_md( md_info, data, datalen, hash );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_signed_hash_verify( &pkcs7, &x509, hash, sizeof(hash) );
TEST_ASSERT( res == 0 );
exit:
mbedtls_x509_crt_free( &x509 );
mbedtls_free( data );
mbedtls_pkcs7_free( &pkcs7 );
mbedtls_free( pkcs7_buf );
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_PKCS1_V15:MBEDTLS_RSA_C */
void pkcs7_verify_hash_multiple_signers( char *pkcs7_file, char *crt1, char *crt2, char *filetobesigned )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
unsigned char *data = NULL;
unsigned char hash[32];
struct stat st;
size_t datalen;
int res;
FILE *file;
const mbedtls_md_info_t *md_info;
mbedtls_md_type_t md_alg;
mbedtls_pkcs7 pkcs7;
mbedtls_x509_crt x509_1;
mbedtls_x509_crt x509_2;
USE_PSA_INIT();
mbedtls_pkcs7_init( &pkcs7 );
mbedtls_x509_crt_init( &x509_1 );
mbedtls_x509_crt_init( &x509_2 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_PKCS7_SIGNED_DATA );
TEST_ASSERT( pkcs7.signed_data.no_of_signers == 2 );
res = mbedtls_x509_crt_parse_file( &x509_1, crt1 );
TEST_ASSERT( res == 0 );
res = mbedtls_x509_crt_parse_file( &x509_2, crt2 );
TEST_ASSERT( res == 0 );
res = stat( filetobesigned, &st );
TEST_ASSERT( res == 0 );
file = fopen( filetobesigned, "r" );
TEST_ASSERT( file != NULL );
datalen = st.st_size;
data = ( unsigned char* ) calloc( datalen, sizeof(unsigned char) );
buflen = fread( ( void * )data , sizeof( unsigned char ), datalen, file );
TEST_ASSERT( buflen == datalen );
fclose( file );
res = mbedtls_oid_get_md_alg( &(pkcs7.signed_data.digest_alg_identifiers), &md_alg );
TEST_ASSERT( res == 0 );
TEST_ASSERT( md_alg == MBEDTLS_MD_SHA256 );
md_info = mbedtls_md_info_from_type( md_alg );
res = mbedtls_md( md_info, data, datalen, hash );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_signed_hash_verify( &pkcs7, &x509_1, hash, sizeof(hash));
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_signed_data_verify( &pkcs7, &x509_2, data, datalen );
TEST_ASSERT( res == 0 );
exit:
mbedtls_x509_crt_free( &x509_1 );
mbedtls_x509_crt_free( &x509_2 );
mbedtls_pkcs7_free( &pkcs7 );
mbedtls_free( data );
mbedtls_free( pkcs7_buf );
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_PKCS1_V15:MBEDTLS_RSA_C */
void pkcs7_verify_badcert( char *pkcs7_file, char *crt, char *filetobesigned )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
unsigned char *data = NULL;
struct stat st;
size_t datalen;
int res;
FILE *file;
mbedtls_pkcs7 pkcs7;
mbedtls_x509_crt x509;
USE_PSA_INIT();
mbedtls_pkcs7_init( &pkcs7 );
mbedtls_x509_crt_init( &x509 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_PKCS7_SIGNED_DATA );
res = mbedtls_x509_crt_parse_file( &x509, crt );
TEST_ASSERT( res == 0 );
res = stat( filetobesigned, &st );
TEST_ASSERT( res == 0 );
file = fopen( filetobesigned, "rb" );
TEST_ASSERT( file != NULL );
datalen = st.st_size;
data = mbedtls_calloc( datalen, 1 );
buflen = fread( ( void * )data , sizeof( unsigned char ), datalen, file );
TEST_ASSERT( buflen == datalen);
fclose(file);
res = mbedtls_pkcs7_signed_data_verify( &pkcs7, &x509, data, datalen );
TEST_ASSERT( res != 0 );
exit:
mbedtls_x509_crt_free( &x509 );
mbedtls_free( data );
mbedtls_pkcs7_free( &pkcs7 );
mbedtls_free( pkcs7_buf );
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_PKCS1_V15:MBEDTLS_RSA_C */
void pkcs7_verify_tampered_data( char *pkcs7_file, char *crt, char *filetobesigned )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
unsigned char *data = NULL;
struct stat st;
size_t datalen;
int res;
FILE *file;
mbedtls_pkcs7 pkcs7;
mbedtls_x509_crt x509;
USE_PSA_INIT();
mbedtls_pkcs7_init( &pkcs7 );
mbedtls_x509_crt_init( &x509 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_PKCS7_SIGNED_DATA );
res = mbedtls_x509_crt_parse_file( &x509, crt );
TEST_ASSERT( res == 0 );
res = stat( filetobesigned, &st );
TEST_ASSERT( res == 0 );
file = fopen( filetobesigned, "rb" );
TEST_ASSERT( file != NULL );
datalen = st.st_size;
data = mbedtls_calloc( datalen, 1 );
buflen = fread( ( void * )data , sizeof( unsigned char ), datalen, file );
TEST_ASSERT( buflen == datalen);
fclose(file);
res = mbedtls_pkcs7_signed_data_verify( &pkcs7, &x509, data, datalen );
TEST_ASSERT( res != 0 );
exit:
mbedtls_x509_crt_free( &x509 );
mbedtls_pkcs7_free( &pkcs7 );
mbedtls_free( data );
mbedtls_free( pkcs7_buf );
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_PKCS1_V15:MBEDTLS_RSA_C */
void pkcs7_verify_multiple_signers( char *pkcs7_file, char *crt1, char *crt2, char *filetobesigned )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
unsigned char *data = NULL;
struct stat st;
size_t datalen;
int res;
FILE *file;
mbedtls_pkcs7 pkcs7;
mbedtls_x509_crt x509_1;
mbedtls_x509_crt x509_2;
USE_PSA_INIT();
mbedtls_pkcs7_init( &pkcs7 );
mbedtls_x509_crt_init( &x509_1 );
mbedtls_x509_crt_init( &x509_2 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res == MBEDTLS_PKCS7_SIGNED_DATA );
TEST_ASSERT( pkcs7.signed_data.no_of_signers == 2 );
res = mbedtls_x509_crt_parse_file( &x509_1, crt1 );
TEST_ASSERT( res == 0 );
res = mbedtls_x509_crt_parse_file( &x509_2, crt2 );
TEST_ASSERT( res == 0 );
res = stat( filetobesigned, &st );
TEST_ASSERT( res == 0 );
file = fopen( filetobesigned, "r" );
TEST_ASSERT( file != NULL );
datalen = st.st_size;
data = ( unsigned char* ) calloc( datalen, sizeof(unsigned char) );
buflen = fread( ( void * )data , sizeof( unsigned char ), datalen, file );
TEST_ASSERT( buflen == datalen );
fclose( file );
res = mbedtls_pkcs7_signed_data_verify( &pkcs7, &x509_1, data, datalen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_signed_data_verify( &pkcs7, &x509_2, data, datalen );
TEST_ASSERT( res == 0 );
exit:
mbedtls_x509_crt_free( &x509_1 );
mbedtls_x509_crt_free( &x509_2 );
mbedtls_pkcs7_free( &pkcs7 );
mbedtls_free( data );
mbedtls_free( pkcs7_buf );
USE_PSA_DONE();
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_FS_IO */
void pkcs7_parse_failure( char *pkcs7_file )
{
unsigned char *pkcs7_buf = NULL;
size_t buflen;
int res;
mbedtls_pkcs7 pkcs7;
mbedtls_pkcs7_init( &pkcs7 );
res = mbedtls_pk_load_file( pkcs7_file, &pkcs7_buf, &buflen );
TEST_ASSERT( res == 0 );
res = mbedtls_pkcs7_parse_der( &pkcs7, pkcs7_buf, buflen );
TEST_ASSERT( res != 0 );
exit:
mbedtls_free( pkcs7_buf );
mbedtls_pkcs7_free( &pkcs7 );
}
/* END_CASE */
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