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Add mbedtls_mpi_core_ct_uint_table_lookup tests

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Signed-off-by: Janos Follath <janos.follath@arm.com>
This commit is contained in:
Janos Follath 2022-10-26 19:10:29 +01:00
parent e50f2f1a8e
commit 032924f297
2 changed files with 75 additions and 0 deletions
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37
tests/suites/test_suite_bignum_core.function
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@ -941,3 +941,40 @@ exit:
mbedtls_mpi_free( &RR_REF );
}
/* END_CASE */
/* BEGIN_CASE */
void mpi_core_ct_uint_table_lookup( int bitlen, int window_size )
{
size_t limbs = BITS_TO_LIMBS( bitlen );
size_t count = ( (size_t) 1 ) << window_size;
mbedtls_mpi_uint *table = NULL;
ASSERT_ALLOC( table, limbs * count );
mbedtls_mpi_uint *dest = NULL;
ASSERT_ALLOC( dest, limbs );
/*
* Fill the table with a unique counter so that differences are easily
* detected. (And have their relationship to the index relatively non-trivial just
* to be sure.)
*/
for( size_t i = 0; i < count * limbs; i++ )
{
table[i] = ~i - 1;
}
for( size_t i = 0; i < count; i++ )
{
memset( dest, 0x00, limbs * sizeof( *dest ) );
mbedtls_mpi_core_ct_uint_table_lookup( dest, table, limbs, count, i );
mbedtls_mpi_uint *current = table + i * limbs;
ASSERT_COMPARE( dest, limbs * sizeof( *dest ),
current, limbs * sizeof( *current ) );
}
exit:
;
}
/* END_CASE */