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Better coverage for copy and swap

Browse source 
Cover more cases: different signs, different zeronesses, repeated
argument.
This commit is contained in:
Gilles Peskine 2020-01-20 21:01:51 +01:00
parent 72d7609f82
commit 7428b45126
2 changed files with 148 additions and 22 deletions
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75
tests/suites/test_suite_mpi.data
View file

@ -206,13 +206,82 @@ Base test mbedtls_mpi_cmp_abs (Mix values) #3
mbedtls_mpi_cmp_abs:10:"-2":10:"1":1
Copy zero (1 limb) to positive (1 limb)
mbedtls_mpi_copy:0:1500
mbedtls_mpi_copy_sint:0:1500
Copy zero (1 limb) to negative (1 limb)
mbedtls_mpi_copy_sint:0:-1500
Copy positive (1 limb) to zero (1 limb)
mbedtls_mpi_copy_sint:1500:0
Copy negative (1 limb) to zero (1 limb)
mbedtls_mpi_copy_sint:-1500:0
Copy positive (1 limb) to negative (1 limb)
mbedtls_mpi_copy_sint:1500:-42
Copy negative (1 limb) to positive (1 limb)
mbedtls_mpi_copy_sint:-42:1500
Copy zero (null) to zero (null)
mbedtls_mpi_copy_binary:"":""
Copy zero (null) to positive (1 limb)
mbedtls_mpi_copy_binary:"":"1234"
Copy positive (1 limb) to zero (null)
mbedtls_mpi_copy_binary:"1234":""
Copy positive to larger
mbedtls_mpi_copy_binary:"bead":"ca5cadedb01dfaceacc01ade"
Copy positive to smaller
mbedtls_mpi_copy_binary:"ca5cadedb01dfaceacc01ade":"bead"
Copy self: positive (1 limb)
mpi_copy_self:14
Swap 0 with positive (1 limb)
mbedtls_mpi_swap:0:1500
Copy self: zero (1 limb)
mpi_copy_self:0
Swap zero (1 limb) with positive (1 limb)
mbedtls_mpi_swap_sint:0:1500
Swap zero (1 limb) with negative (1 limb)
mbedtls_mpi_swap_sint:0:-1500
Swap positive (1 limb) with zero (1 limb)
mbedtls_mpi_swap_sint:1500:0
Swap negative (1 limb) with zero (1 limb)
mbedtls_mpi_swap_sint:-1500:0
Swap positive (1 limb) with negative (1 limb)
mbedtls_mpi_swap_sint:1500:-42
Swap negative (1 limb) with positive (1 limb)
mbedtls_mpi_swap_sint:-42:1500
Swap zero (null) with zero (null)
mbedtls_mpi_swap_binary:"":""
Swap zero (null) with positive (1 limb)
mbedtls_mpi_swap_binary:"":"1234"
Swap positive (1 limb) with zero (null)
mbedtls_mpi_swap_binary:"1234":""
Swap positive with larger
mbedtls_mpi_swap_binary:"bead":"ca5cadedb01dfaceacc01ade"
Swap positive with smaller
mbedtls_mpi_swap_binary:"ca5cadedb01dfaceacc01ade":"bead"
Swap self: 1 limb
mpi_swap_self:"face"
Swap self: null
mpi_swap_self:""
Shrink 2 in 2 to 4
mbedtls_mpi_shrink:2:2:4:4

95
tests/suites/test_suite_mpi.function
View file

@ -604,22 +604,40 @@ exit:
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_mpi_copy( int input_X, int input_A )
void mbedtls_mpi_copy_sint( int input_X, int input_Y )
{
mbedtls_mpi X, Y, A;
mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &A );
mbedtls_mpi X, Y;
mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y );
TEST_ASSERT( mbedtls_mpi_lset( &X, input_X ) == 0 );
TEST_ASSERT( mbedtls_mpi_lset( &Y, input_A ) == 0 );
TEST_ASSERT( mbedtls_mpi_lset( &A, input_A ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &Y ) != 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &Y, &A ) == 0 );
TEST_ASSERT( mbedtls_mpi_lset( &Y, input_Y ) == 0 );
TEST_ASSERT( mbedtls_mpi_copy( &Y, &X ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &Y ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &Y, &A ) != 0 );
TEST_ASSERT( mbedtls_mpi_cmp_int( &X, input_X ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_int( &Y, input_X ) == 0 );
exit:
mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &A );
mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y );
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_mpi_copy_binary( data_t *input_X, data_t *input_Y )
{
mbedtls_mpi X, Y, X0;
mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &X0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &X, input_X->x, input_X->len ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &Y, input_Y->x, input_Y->len ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &X0, input_X->x, input_X->len ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &X0 ) == 0 );
TEST_ASSERT( mbedtls_mpi_copy( &Y, &X ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &X0 ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &Y, &X0 ) == 0 );
exit:
mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &X0 );
}
/* END_CASE */
@ -711,22 +729,61 @@ exit:
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_mpi_swap( int input_X, int input_Y )
void mbedtls_mpi_swap_sint( int input_X, int input_Y )
{
mbedtls_mpi X, Y, A;
mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &A );
mbedtls_mpi X, Y;
mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y );
TEST_ASSERT( mbedtls_mpi_lset( &X, input_X ) == 0 );
TEST_ASSERT( mbedtls_mpi_lset( &Y, input_Y ) == 0 );
TEST_ASSERT( mbedtls_mpi_lset( &A, input_X ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &Y ) != 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &A ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_int( &X, input_X ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_int( &Y, input_Y ) == 0 );
mbedtls_mpi_swap( &X, &Y );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &Y ) != 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &Y, &A ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_int( &X, input_Y ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_int( &Y, input_X ) == 0 );
exit:
mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &A );
mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y );
}
/* END_CASE */
/* BEGIN_CASE */
void mbedtls_mpi_swap_binary( data_t *input_X, data_t *input_Y )
{
mbedtls_mpi X, Y, X0, Y0;
mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y );
mbedtls_mpi_init( &X0 ); mbedtls_mpi_init( &Y0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &X, input_X->x, input_X->len ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &Y, input_Y->x, input_Y->len ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &X0, input_X->x, input_X->len ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &Y0, input_Y->x, input_Y->len ) == 0 );
mbedtls_mpi_swap( &X, &Y );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &Y0 ) == 0 );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &Y, &X0 ) == 0 );
exit:
mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y );
mbedtls_mpi_free( &X0 ); mbedtls_mpi_free( &Y0 );
}
/* END_CASE */
/* BEGIN_CASE */
void mpi_swap_self( data_t *input_X )
{
mbedtls_mpi X, X0;
mbedtls_mpi_init( &X ); mbedtls_mpi_init( &X0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &X, input_X->x, input_X->len ) == 0 );
TEST_ASSERT( mbedtls_mpi_read_binary_le( &X0, input_X->x, input_X->len ) == 0 );
mbedtls_mpi_swap( &X, &X );
TEST_ASSERT( mbedtls_mpi_cmp_mpi( &X, &X0 ) == 0 );
exit:
mbedtls_mpi_free( &X ); mbedtls_mpi_free( &X0 );
}
/* END_CASE */