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Fix Changelog, add separate test functions for hash of all-zero bits

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Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
This commit is contained in:
TRodziewicz
2021-04-07 19:16:18 +02:00
parent 20ad475cc2
commit 40de3c99c0
3 changed files with 184 additions and 79 deletions
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220
tests/suites/test_suite_ecdsa.function
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@@ -205,14 +205,13 @@ exit:
/* END_CASE */
/* BEGIN_CASE */
void ecdsa_prim_random( int id )
void ecdsa_prim_zero( int id )
{
mbedtls_ecp_group grp;
mbedtls_ecp_point Q;
mbedtls_mpi d, r, s;
mbedtls_test_rnd_pseudo_info rnd_info;
unsigned char buf[MBEDTLS_MD_MAX_SIZE];
int test_runs = 2;
mbedtls_ecp_group_init( &grp );
mbedtls_ecp_point_init( &Q );
@@ -220,31 +219,50 @@ void ecdsa_prim_random( int id )
memset( &rnd_info, 0x00, sizeof( mbedtls_test_rnd_pseudo_info ) );
memset( buf, 0, sizeof( buf ) );
while ( test_runs-- )
{
/* prepare material for signature */
if ( test_runs == 1 )
{
TEST_ASSERT( mbedtls_test_rnd_pseudo_rand( &rnd_info,
buf, sizeof( buf ) )
== 0 );
} else {
TEST_ASSERT( mbedtls_test_rnd_zero_rand( NULL,
buf, sizeof( buf ) )
== 0 );
}
TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
TEST_ASSERT( mbedtls_ecp_gen_keypair( &grp, &d, &Q,
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
TEST_ASSERT( mbedtls_ecp_gen_keypair( &grp, &d, &Q,
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdsa_sign( &grp, &r, &s, &d, buf, sizeof( buf ),
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdsa_verify( &grp, buf, sizeof( buf ), &Q, &r, &s ) == 0 );
TEST_ASSERT( mbedtls_ecdsa_sign( &grp, &r, &s, &d, buf, sizeof( buf ),
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdsa_verify( &grp, buf, sizeof( buf ), &Q, &r, &s )
== 0 );
}
exit:
mbedtls_ecp_group_free( &grp );
mbedtls_ecp_point_free( &Q );
mbedtls_mpi_free( &d ); mbedtls_mpi_free( &r ); mbedtls_mpi_free( &s );
}
/* END_CASE */
/* BEGIN_CASE */
void ecdsa_prim_random( int id )
{
mbedtls_ecp_group grp;
mbedtls_ecp_point Q;
mbedtls_mpi d, r, s;
mbedtls_test_rnd_pseudo_info rnd_info;
unsigned char buf[MBEDTLS_MD_MAX_SIZE];
mbedtls_ecp_group_init( &grp );
mbedtls_ecp_point_init( &Q );
mbedtls_mpi_init( &d ); mbedtls_mpi_init( &r ); mbedtls_mpi_init( &s );
memset( &rnd_info, 0x00, sizeof( mbedtls_test_rnd_pseudo_info ) );
memset( buf, 0, sizeof( buf ) );
/* prepare material for signature */
TEST_ASSERT( mbedtls_test_rnd_pseudo_rand( &rnd_info,
buf, sizeof( buf ) ) == 0 );
TEST_ASSERT( mbedtls_ecp_group_load( &grp, id ) == 0 );
TEST_ASSERT( mbedtls_ecp_gen_keypair( &grp, &d, &Q,
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdsa_sign( &grp, &r, &s, &d, buf, sizeof( buf ),
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdsa_verify( &grp, buf, sizeof( buf ), &Q, &r, &s ) == 0 );
exit:
mbedtls_ecp_group_free( &grp );
@@ -360,6 +378,68 @@ exit:
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SHA256_C */
void ecdsa_write_read_zero( int id )
{
mbedtls_ecdsa_context ctx;
mbedtls_test_rnd_pseudo_info rnd_info;
unsigned char hash[32];
unsigned char sig[200];
size_t sig_len, i;
mbedtls_ecdsa_init( &ctx );
memset( &rnd_info, 0x00, sizeof( mbedtls_test_rnd_pseudo_info ) );
memset( hash, 0, sizeof( hash ) );
memset( sig, 0x2a, sizeof( sig ) );
TEST_ASSERT(0);
/* generate signing key */
TEST_ASSERT( mbedtls_ecdsa_genkey( &ctx, id,
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
/* generate and write signature, then read and verify it */
TEST_ASSERT( mbedtls_ecdsa_write_signature( &ctx, MBEDTLS_MD_SHA256,
hash, sizeof( hash ),
sig, &sig_len, &mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == 0 );
/* check we didn't write past the announced length */
for( i = sig_len; i < sizeof( sig ); i++ )
TEST_ASSERT( sig[i] == 0x2a );
/* try verification with invalid length */
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len - 1 ) != 0 );
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len + 1 ) != 0 );
/* try invalid sequence tag */
sig[0]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) != 0 );
sig[0]--;
/* try modifying r */
sig[10]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == MBEDTLS_ERR_ECP_VERIFY_FAILED );
sig[10]--;
/* try modifying s */
sig[sig_len - 1]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == MBEDTLS_ERR_ECP_VERIFY_FAILED );
sig[sig_len - 1]--;
exit:
mbedtls_ecdsa_free( &ctx );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SHA256_C */
void ecdsa_write_read_random( int id )
{
@@ -368,70 +448,56 @@ void ecdsa_write_read_random( int id )
unsigned char hash[32];
unsigned char sig[200];
size_t sig_len, i;
int test_runs = 2;
mbedtls_ecdsa_init( &ctx );
memset( &rnd_info, 0x00, sizeof( mbedtls_test_rnd_pseudo_info ) );
memset( hash, 0, sizeof( hash ) );
memset( sig, 0x2a, sizeof( sig ) );
while ( test_runs-- )
{
memset( sig, 0x2a, sizeof( sig ) );
/* prepare material for signature */
TEST_ASSERT( mbedtls_test_rnd_pseudo_rand( &rnd_info,
hash, sizeof( hash ) ) == 0 );
/* prepare material for signature */
if ( test_runs == 1 )
{
TEST_ASSERT( mbedtls_test_rnd_pseudo_rand( &rnd_info,
hash, sizeof( hash ) )
== 0 );
} else {
TEST_ASSERT( mbedtls_test_rnd_zero_rand( NULL,
hash, sizeof( hash ) )
== 0 );
}
/* generate signing key */
TEST_ASSERT( mbedtls_ecdsa_genkey( &ctx, id,
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
/* generate signing key */
TEST_ASSERT( mbedtls_ecdsa_genkey( &ctx, id,
&mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
/* generate and write signature, then read and verify it */
TEST_ASSERT( mbedtls_ecdsa_write_signature( &ctx, MBEDTLS_MD_SHA256,
hash, sizeof( hash ),
sig, &sig_len, &mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == 0 );
/* generate and write signature, then read and verify it */
TEST_ASSERT( mbedtls_ecdsa_write_signature( &ctx, MBEDTLS_MD_SHA256,
hash, sizeof( hash ),
sig, &sig_len, &mbedtls_test_rnd_pseudo_rand,
&rnd_info ) == 0 );
/* check we didn't write past the announced length */
for( i = sig_len; i < sizeof( sig ); i++ )
TEST_ASSERT( sig[i] == 0x2a );
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == 0 );
/* try verification with invalid length */
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len - 1 ) != 0 );
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len + 1 ) != 0 );
/* check we didn't write past the announced length */
for( i = sig_len; i < sizeof( sig ); i++ )
TEST_ASSERT( sig[i] == 0x2a );
/* try invalid sequence tag */
sig[0]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) != 0 );
sig[0]--;
/* try verification with invalid length */
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len - 1 ) != 0 );
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len + 1 ) != 0 );
/* try modifying r */
sig[10]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == MBEDTLS_ERR_ECP_VERIFY_FAILED );
sig[10]--;
/* try invalid sequence tag */
sig[0]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) != 0 );
sig[0]--;
/* try modifying r */
sig[10]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == MBEDTLS_ERR_ECP_VERIFY_FAILED );
sig[10]--;
/* try modifying s */
sig[sig_len - 1]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == MBEDTLS_ERR_ECP_VERIFY_FAILED );
sig[sig_len - 1]--;
}
/* try modifying s */
sig[sig_len - 1]++;
TEST_ASSERT( mbedtls_ecdsa_read_signature( &ctx, hash, sizeof( hash ),
sig, sig_len ) == MBEDTLS_ERR_ECP_VERIFY_FAILED );
sig[sig_len - 1]--;
exit:
mbedtls_ecdsa_free( &ctx );