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Add test case for ecdh_get_params with mismatching group

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Add a test case for doing an ECDH calculation by calling
mbedtls_ecdh_get_params on both keys, with keys belonging to
different groups. This should fail, but currently passes.
This commit is contained in:
Gilles Peskine 2018-11-07 22:09:29 +01:00
parent 6d9b762ee0
commit 62a73511f1
2 changed files with 55 additions and 0 deletions
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8
tests/suites/test_suite_ecdh.data
View file

@ -87,3 +87,11 @@ ecdh_exchange_calc_secret:MBEDTLS_ECP_DP_SECP256R1:"c6ef9c5d78ae012a011164acb397
ECDH calc_secret: theirs first, SECP256R1 (RFC 5903)
depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
ecdh_exchange_calc_secret:MBEDTLS_ECP_DP_SECP256R1:"c6ef9c5d78ae012a011164acb397ce2088685d8f06bf9be0b283ab46476bee53":"04dad0b65394221cf9b051e1feca5787d098dfe637fc90b9ef945d0c37725811805271a0461cdb8252d61f1c456fa3e59ab1f45b33accf5f58389e0577b8990bb3":1:"d6840f6b42f6edafd13116e0e12565202fef8e9ece7dce03812464d04b9442de"
ECDH get_params with mismatched groups: our BP256R1, their SECP256R1
depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_BP256R1_ENABLED
ecdh_exchange_get_params_fail:MBEDTLS_ECP_DP_BP256R1:"1234567812345678123456781234567812345678123456781234567812345678":MBEDTLS_ECP_DP_SECP256R1:"04dad0b65394221cf9b051e1feca5787d098dfe637fc90b9ef945d0c37725811805271a0461cdb8252d61f1c456fa3e59ab1f45b33accf5f58389e0577b8990bb3":0:MBEDTLS_ERR_ECP_BAD_INPUT_DATA
ECDH get_params with mismatched groups: their SECP256R1, our BP256R1
depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_BP256R1_ENABLED
ecdh_exchange_get_params_fail:MBEDTLS_ECP_DP_BP256R1:"1234567812345678123456781234567812345678123456781234567812345678":MBEDTLS_ECP_DP_SECP256R1:"04dad0b65394221cf9b051e1feca5787d098dfe637fc90b9ef945d0c37725811805271a0461cdb8252d61f1c456fa3e59ab1f45b33accf5f58389e0577b8990bb3":1:MBEDTLS_ERR_ECP_BAD_INPUT_DATA

47
tests/suites/test_suite_ecdh.function
View file

@ -557,3 +557,50 @@ exit:
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 */