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IXWebSocket/third_party/mbedtls/crypto/tests/suites/test_suite_ecdh.function
Benjamin Sergeant 06cbebe22e Feature/mbedtls (#84) 
* try to import mbedtls and build it

* add stubs socket class

* some boilterplate, read and write function implemented

* more boilterplate / current error in handshake because no CA cert is setup

* add something so skip ca verification, can ws curl https://google.com !

* cleanup / close implemented

* tweak CMakefiles

* typo in include

* update readme

* disable unittests
2019-06-01 17:41:48 -07:00

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/* BEGIN_HEADER */
#include "mbedtls/ecdh.h"
static int load_public_key( int grp_id, data_t *point,
mbedtls_ecp_keypair *ecp )
{
int ok = 0;
TEST_ASSERT( mbedtls_ecp_group_load( &ecp->grp, grp_id ) == 0 );
TEST_ASSERT( mbedtls_ecp_point_read_binary( &ecp->grp,
&ecp->Q,
point->x,
point->len ) == 0 );
TEST_ASSERT( mbedtls_ecp_check_pubkey( &ecp->grp,
&ecp->Q ) == 0 );
ok = 1;
exit:
return( ok );
}
static int load_private_key( int grp_id, data_t *private_key,
mbedtls_ecp_keypair *ecp,
rnd_pseudo_info *rnd_info )
{
int ok = 0;
TEST_ASSERT( mbedtls_ecp_read_key( grp_id, ecp,
private_key->x,
private_key->len ) == 0 );
TEST_ASSERT( mbedtls_ecp_check_privkey( &ecp->grp, &ecp->d ) == 0 );
/* Calculate the public key from the private key. */
TEST_ASSERT( mbedtls_ecp_mul( &ecp->grp, &ecp->Q, &ecp->d,
&ecp->grp.G,
&rnd_pseudo_rand, rnd_info ) == 0 );
ok = 1;
exit:
return( ok );
}
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_ECDH_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void ecdh_valid_param( )
{
TEST_VALID_PARAM( mbedtls_ecdh_free( NULL ) );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_CHECK_PARAMS:!MBEDTLS_PARAM_FAILED_ALT */
void ecdh_invalid_param( )
{
mbedtls_ecp_group grp;
mbedtls_ecdh_context ctx;
mbedtls_mpi m;
mbedtls_ecp_point P;
mbedtls_ecp_keypair kp;
size_t olen;
unsigned char buf[42] = { 0 };
const unsigned char *buf_null = NULL;
size_t const buflen = sizeof( buf );
int invalid_side = 42;
mbedtls_ecp_group_id valid_grp = MBEDTLS_ECP_DP_SECP192R1;
TEST_INVALID_PARAM( mbedtls_ecdh_init( NULL ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
TEST_INVALID_PARAM( mbedtls_ecdh_enable_restart( NULL ) );
#endif /* MBEDTLS_ECP_RESTARTABLE */
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_gen_public( NULL, &m, &P,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_gen_public( &grp, NULL, &P,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_gen_public( &grp, &m, NULL,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_gen_public( &grp, &m, &P,
NULL, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_compute_shared( NULL, &m, &P, &m,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_compute_shared( &grp, NULL, &P, &m,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_compute_shared( &grp, &m, NULL, &m,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_compute_shared( &grp, &m, &P, NULL,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_setup( NULL, valid_grp ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_make_params( NULL, &olen,
buf, buflen,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_make_params( &ctx, NULL,
buf, buflen,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_make_params( &ctx, &olen,
NULL, buflen,
rnd_std_rand, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_make_params( &ctx, &olen,
buf, buflen,
NULL, NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_read_params( NULL,
(const unsigned char**) &buf,
buf ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_read_params( &ctx, &buf_null,
buf ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_read_params( &ctx, NULL, buf ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_read_params( &ctx,
(const unsigned char**) &buf,
NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_get_params( NULL, &kp,
MBEDTLS_ECDH_OURS ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_get_params( &ctx, NULL,
MBEDTLS_ECDH_OURS ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_get_params( &ctx, &kp,
invalid_side ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_make_public( NULL, &olen,
buf, buflen,
rnd_std_rand,
NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_make_public( &ctx, NULL,
buf, buflen,
rnd_std_rand,
NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_make_public( &ctx, &olen,
NULL, buflen,
rnd_std_rand,
NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_make_public( &ctx, &olen,
buf, buflen,
NULL,
NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_read_public( NULL, buf, buflen ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_read_public( &ctx, NULL, buflen ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_calc_secret( NULL, &olen, buf, buflen,
rnd_std_rand,
NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_calc_secret( &ctx, NULL, buf, buflen,
rnd_std_rand,
NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
mbedtls_ecdh_calc_secret( &ctx, &olen, NULL, buflen,
rnd_std_rand,
NULL ) );
exit:
return;
}
/* END_CASE */
/* BEGIN_CASE */
void ecdh_primitive_random( int id )
{
mbedtls_ecp_group grp;
mbedtls_ecp_point qA, qB;
mbedtls_mpi dA, dB, zA, zB;
rnd_pseudo_info rnd_info;
mbedtls_ecp_group_init( &grp );
mbedtls_ecp_point_init( &qA ); mbedtls_ecp_point_init( &qB );
mbedtls_mpi_init( &dA ); mbedtls_mpi_init( &dB );
mbedtls_mpi_init( &zA ); mbedtls_mpi_init( &zB );
memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
TEST_ASSERT( mbedtls_ecdh_gen_public( &grp, &dA, &qA, &rnd_pseudo_rand, &rnd_info )
== 0 );
TEST_ASSERT( mbedtls_ecdh_gen_public( &grp, &dB, &qB, &rnd_pseudo_rand, &rnd_info )
== 0 );
TEST_ASSERT( mbedtls_ecdh_compute_shared( &grp, &zA, &qB, &dA,
&rnd_pseudo_rand, &rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdh_compute_shared( &grp, &zB, &qA, &dB,
NULL, NULL ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &zA, &zB ) == 0 );
exit:
mbedtls_ecp_group_free( &grp );
mbedtls_ecp_point_free( &qA ); mbedtls_ecp_point_free( &qB );
mbedtls_mpi_free( &dA ); mbedtls_mpi_free( &dB );
mbedtls_mpi_free( &zA ); mbedtls_mpi_free( &zB );
}
/* END_CASE */
/* BEGIN_CASE */
void ecdh_primitive_testvec( int id, data_t * rnd_buf_A, char * xA_str,
char * yA_str, data_t * rnd_buf_B,
char * xB_str, char * yB_str, char * z_str )
{
mbedtls_ecp_group grp;
mbedtls_ecp_point qA, qB;
mbedtls_mpi dA, dB, zA, zB, check;
rnd_buf_info rnd_info_A, rnd_info_B;
mbedtls_ecp_group_init( &grp );
mbedtls_ecp_point_init( &qA ); mbedtls_ecp_point_init( &qB );
mbedtls_mpi_init( &dA ); mbedtls_mpi_init( &dB );
mbedtls_mpi_init( &zA ); mbedtls_mpi_init( &zB ); mbedtls_mpi_init( &check );
TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
rnd_info_A.buf = rnd_buf_A->x;
rnd_info_A.length = rnd_buf_A->len;
/* Fix rnd_buf_A->x by shifting it left if necessary */
if( grp.nbits % 8 != 0 )
{
unsigned char shift = 8 - ( grp.nbits % 8 );
size_t i;
for( i = 0; i < rnd_info_A.length - 1; i++ )
rnd_buf_A->x[i] = rnd_buf_A->x[i] << shift
| rnd_buf_A->x[i+1] >> ( 8 - shift );
rnd_buf_A->x[rnd_info_A.length-1] <<= shift;
}
rnd_info_B.buf = rnd_buf_B->x;
rnd_info_B.length = rnd_buf_B->len;
/* Fix rnd_buf_B->x by shifting it left if necessary */
if( grp.nbits % 8 != 0 )
{
unsigned char shift = 8 - ( grp.nbits % 8 );
size_t i;
for( i = 0; i < rnd_info_B.length - 1; i++ )
rnd_buf_B->x[i] = rnd_buf_B->x[i] << shift
| rnd_buf_B->x[i+1] >> ( 8 - shift );
rnd_buf_B->x[rnd_info_B.length-1] <<= shift;
}
TEST_ASSERT( mbedtls_ecdh_gen_public( &grp, &dA, &qA,
rnd_buffer_rand, &rnd_info_A ) == 0 );
TEST_ASSERT( ! mbedtls_ecp_is_zero( &qA ) );
TEST_ASSERT( mbedtls_mpi_read_string( &check, 16, xA_str ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &qA.X, &check ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_string( &check, 16, yA_str ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &qA.Y, &check ) == 0 );
TEST_ASSERT( mbedtls_ecdh_gen_public( &grp, &dB, &qB,
rnd_buffer_rand, &rnd_info_B ) == 0 );
TEST_ASSERT( ! mbedtls_ecp_is_zero( &qB ) );
TEST_ASSERT( mbedtls_mpi_read_string( &check, 16, xB_str ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &qB.X, &check ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_string( &check, 16, yB_str ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &qB.Y, &check ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_string( &check, 16, z_str ) == 0 );
TEST_ASSERT( mbedtls_ecdh_compute_shared( &grp, &zA, &qB, &dA, NULL, NULL ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &zA, &check ) == 0 );
TEST_ASSERT( mbedtls_ecdh_compute_shared( &grp, &zB, &qA, &dB, NULL, NULL ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &zB, &check ) == 0 );
exit:
mbedtls_ecp_group_free( &grp );
mbedtls_ecp_point_free( &qA ); mbedtls_ecp_point_free( &qB );
mbedtls_mpi_free( &dA ); mbedtls_mpi_free( &dB );
mbedtls_mpi_free( &zA ); mbedtls_mpi_free( &zB ); mbedtls_mpi_free( &check );
}
/* END_CASE */
/* BEGIN_CASE */
void ecdh_exchange( int id )
{
mbedtls_ecdh_context srv, cli;
unsigned char buf[1000];
const unsigned char *vbuf;
size_t len;
rnd_pseudo_info rnd_info;
unsigned char res_buf[1000];
size_t res_len;
mbedtls_ecdh_init( &srv );
mbedtls_ecdh_init( &cli );
memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
TEST_ASSERT( mbedtls_ecdh_setup( &srv, id ) == 0 );
memset( buf, 0x00, sizeof( buf ) ); vbuf = buf;
TEST_ASSERT( mbedtls_ecdh_make_params( &srv, &len, buf, 1000,
&rnd_pseudo_rand, &rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdh_read_params( &cli, &vbuf, buf + len ) == 0 );
memset( buf, 0x00, sizeof( buf ) );
TEST_ASSERT( mbedtls_ecdh_make_public( &cli, &len, buf, 1000,
&rnd_pseudo_rand, &rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdh_read_public( &srv, buf, len ) == 0 );
TEST_ASSERT( mbedtls_ecdh_calc_secret( &srv, &len, buf, 1000,
&rnd_pseudo_rand, &rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdh_calc_secret( &cli, &res_len, res_buf, 1000,
NULL, NULL ) == 0 );
TEST_ASSERT( len == res_len );
TEST_ASSERT( memcmp( buf, res_buf, len ) == 0 );
exit:
mbedtls_ecdh_free( &srv );
mbedtls_ecdh_free( &cli );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_ECP_RESTARTABLE */
void ecdh_restart( int id, char *dA_str, char *dB_str, char *z_str,
int enable, int max_ops, int min_restart, int max_restart )
{
int ret;
mbedtls_ecdh_context srv, cli;
unsigned char buf[1000];
const unsigned char *vbuf;
size_t len;
unsigned char z[MBEDTLS_ECP_MAX_BYTES];
size_t z_len;
unsigned char rnd_buf_A[MBEDTLS_ECP_MAX_BYTES];
unsigned char rnd_buf_B[MBEDTLS_ECP_MAX_BYTES];
rnd_buf_info rnd_info_A, rnd_info_B;
int cnt_restart;
mbedtls_ecp_group grp;
mbedtls_ecp_group_init( &grp );
mbedtls_ecdh_init( &srv );
mbedtls_ecdh_init( &cli );
z_len = unhexify( z, z_str );
rnd_info_A.buf = rnd_buf_A;
rnd_info_A.length = unhexify( rnd_buf_A, dA_str );
rnd_info_B.buf = rnd_buf_B;
rnd_info_B.length = unhexify( rnd_buf_B, dB_str );
/* The ECDH context is not guaranteed ot have an mbedtls_ecp_group structure
* in every configuration, therefore we load it separately. */
TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
/* Otherwise we would have to fix the random buffer,
* as in ecdh_primitive_testvec. */
TEST_ASSERT( grp.nbits % 8 == 0 );
TEST_ASSERT( mbedtls_ecdh_setup( &srv, id ) == 0 );
/* set up restart parameters */
mbedtls_ecp_set_max_ops( max_ops );
if( enable )
{
mbedtls_ecdh_enable_restart( &srv );
mbedtls_ecdh_enable_restart( &cli );
}
/* server writes its parameters */
memset( buf, 0x00, sizeof( buf ) );
len = 0;
cnt_restart = 0;
do {
ret = mbedtls_ecdh_make_params( &srv, &len, buf, sizeof( buf ),
rnd_buffer_rand, &rnd_info_A );
} while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart );
TEST_ASSERT( ret == 0 );
TEST_ASSERT( cnt_restart >= min_restart );
TEST_ASSERT( cnt_restart <= max_restart );
/* client read server params */
vbuf = buf;
TEST_ASSERT( mbedtls_ecdh_read_params( &cli, &vbuf, buf + len ) == 0 );
/* client writes its key share */
memset( buf, 0x00, sizeof( buf ) );
len = 0;
cnt_restart = 0;
do {
ret = mbedtls_ecdh_make_public( &cli, &len, buf, sizeof( buf ),
rnd_buffer_rand, &rnd_info_B );
} while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart );
TEST_ASSERT( ret == 0 );
TEST_ASSERT( cnt_restart >= min_restart );
TEST_ASSERT( cnt_restart <= max_restart );
/* server reads client key share */
TEST_ASSERT( mbedtls_ecdh_read_public( &srv, buf, len ) == 0 );
/* server computes shared secret */
memset( buf, 0, sizeof( buf ) );
len = 0;
cnt_restart = 0;
do {
ret = mbedtls_ecdh_calc_secret( &srv, &len, buf, sizeof( buf ),
NULL, NULL );
} while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart );
TEST_ASSERT( ret == 0 );
TEST_ASSERT( cnt_restart >= min_restart );
TEST_ASSERT( cnt_restart <= max_restart );
TEST_ASSERT( len == z_len );
TEST_ASSERT( memcmp( buf, z, len ) == 0 );
/* client computes shared secret */
memset( buf, 0, sizeof( buf ) );
len = 0;
cnt_restart = 0;
do {
ret = mbedtls_ecdh_calc_secret( &cli, &len, buf, sizeof( buf ),
NULL, NULL );
} while( ret == MBEDTLS_ERR_ECP_IN_PROGRESS && ++cnt_restart );
TEST_ASSERT( ret == 0 );
TEST_ASSERT( cnt_restart >= min_restart );
TEST_ASSERT( cnt_restart <= max_restart );
TEST_ASSERT( len == z_len );
TEST_ASSERT( memcmp( buf, z, len ) == 0 );
exit:
mbedtls_ecp_group_free( &grp );
mbedtls_ecdh_free( &srv );
mbedtls_ecdh_free( &cli );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_ECDH_LEGACY_CONTEXT */
void ecdh_exchange_legacy( int id )
{
mbedtls_ecdh_context srv, cli;
unsigned char buf[1000];
const unsigned char *vbuf;
size_t len;
rnd_pseudo_info rnd_info;
mbedtls_ecdh_init( &srv );
mbedtls_ecdh_init( &cli );
memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
TEST_ASSERT( mbedtls_ecp_group_load( &srv.grp, id ) == 0 );
memset( buf, 0x00, sizeof( buf ) ); vbuf = buf;
TEST_ASSERT( mbedtls_ecdh_make_params( &srv, &len, buf, 1000,
&rnd_pseudo_rand, &rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdh_read_params( &cli, &vbuf, buf + len ) == 0 );
memset( buf, 0x00, sizeof( buf ) );
TEST_ASSERT( mbedtls_ecdh_make_public( &cli, &len, buf, 1000,
&rnd_pseudo_rand, &rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdh_read_public( &srv, buf, len ) == 0 );
TEST_ASSERT( mbedtls_ecdh_calc_secret( &srv, &len, buf, 1000,
&rnd_pseudo_rand, &rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdh_calc_secret( &cli, &len, buf, 1000, NULL,
NULL ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &srv.z, &cli.z ) == 0 );
exit:
mbedtls_ecdh_free( &srv );
mbedtls_ecdh_free( &cli );
}
/* END_CASE */
/* BEGIN_CASE */
void ecdh_exchange_calc_secret( int grp_id,
data_t *our_private_key,
data_t *their_point,
int ours_first,
data_t *expected )
{
rnd_pseudo_info rnd_info;
mbedtls_ecp_keypair our_key;
mbedtls_ecp_keypair their_key;
mbedtls_ecdh_context ecdh;
unsigned char shared_secret[MBEDTLS_ECP_MAX_BYTES];
size_t shared_secret_length = 0;
memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
mbedtls_ecdh_init( &ecdh );
mbedtls_ecp_keypair_init( &our_key );
mbedtls_ecp_keypair_init( &their_key );
if( ! load_private_key( grp_id, our_private_key, &our_key, &rnd_info ) )
goto exit;
if( ! load_public_key( grp_id, their_point, &their_key ) )
goto exit;
/* Import the keys to the ECDH calculation. */
if( ours_first )
{
TEST_ASSERT( mbedtls_ecdh_get_params(
&ecdh, &our_key, MBEDTLS_ECDH_OURS ) == 0 );
TEST_ASSERT( mbedtls_ecdh_get_params(
&ecdh, &their_key, MBEDTLS_ECDH_THEIRS ) == 0 );
}
else
{
TEST_ASSERT( mbedtls_ecdh_get_params(
&ecdh, &their_key, MBEDTLS_ECDH_THEIRS ) == 0 );
TEST_ASSERT( mbedtls_ecdh_get_params(
&ecdh, &our_key, MBEDTLS_ECDH_OURS ) == 0 );
}
/* Perform the ECDH calculation. */
TEST_ASSERT( mbedtls_ecdh_calc_secret(
&ecdh,
&shared_secret_length,
shared_secret, sizeof( shared_secret ),
&rnd_pseudo_rand, &rnd_info ) == 0 );
TEST_ASSERT( shared_secret_length == expected->len );
TEST_ASSERT( memcmp( expected->x, shared_secret,
shared_secret_length ) == 0 );
exit:
mbedtls_ecdh_free( &ecdh );
mbedtls_ecp_keypair_free( &our_key );
mbedtls_ecp_keypair_free( &their_key );
}
/* END_CASE */
/* BEGIN_CASE */
void ecdh_exchange_get_params_fail( int our_grp_id,
data_t *our_private_key,
int their_grp_id,
data_t *their_point,
int ours_first,
int expected_ret )
{
rnd_pseudo_info rnd_info;
mbedtls_ecp_keypair our_key;
mbedtls_ecp_keypair their_key;
mbedtls_ecdh_context ecdh;
memset( &rnd_info, 0x00, sizeof( rnd_pseudo_info ) );
mbedtls_ecdh_init( &ecdh );
mbedtls_ecp_keypair_init( &our_key );
mbedtls_ecp_keypair_init( &their_key );
if( ! load_private_key( our_grp_id, our_private_key, &our_key, &rnd_info ) )
goto exit;
if( ! load_public_key( their_grp_id, their_point, &their_key ) )
goto exit;
if( ours_first )
{
TEST_ASSERT( mbedtls_ecdh_get_params(
&ecdh, &our_key, MBEDTLS_ECDH_OURS ) == 0 );
TEST_ASSERT( mbedtls_ecdh_get_params(
&ecdh, &their_key, MBEDTLS_ECDH_THEIRS ) ==
expected_ret );
}
else
{
TEST_ASSERT( mbedtls_ecdh_get_params(
&ecdh, &their_key, MBEDTLS_ECDH_THEIRS ) == 0 );
TEST_ASSERT( mbedtls_ecdh_get_params(
&ecdh, &our_key, MBEDTLS_ECDH_OURS ) ==
expected_ret );
}
exit:
mbedtls_ecdh_free( &ecdh );
mbedtls_ecp_keypair_free( &our_key );
mbedtls_ecp_keypair_free( &their_key );
}
/* END_CASE */
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