Rename variables to match bettr to its purpose

The length in bytes is used with the 'len' prefix and
the length in limbs is used with the 'limbs' prefix.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
This commit is contained in:
Gabor Mezei 2022-09-30 14:28:26 +02:00
parent 86dfe384c2
commit f5ca726ce1
No known key found for this signature in database
GPG key ID: F072ACA227ACD71D

View file

@ -770,44 +770,44 @@ void mpi_core_cond_assign( data_t * input_X,
#define MAX_LEN 64
mbedtls_mpi_uint *X = NULL;
mbedtls_mpi_uint *Y = NULL;
size_t len_X = CHARS_TO_LIMBS( input_X->len );
size_t len_Y = CHARS_TO_LIMBS( input_Y->len );
size_t len_X_byte = len_X * sizeof( mbedtls_mpi_uint );
size_t len_Y_byte = len_Y * sizeof( mbedtls_mpi_uint );
size_t limbs_X = CHARS_TO_LIMBS( input_X->len );
size_t limbs_Y = CHARS_TO_LIMBS( input_Y->len );
size_t len_X = limbs_X * sizeof( mbedtls_mpi_uint );
size_t len_Y = limbs_Y * sizeof( mbedtls_mpi_uint );
TEST_ASSERT( len_X <= MAX_LEN );
TEST_ASSERT( len_Y <= MAX_LEN );
TEST_ASSERT( limbs_X <= MAX_LEN );
TEST_ASSERT( limbs_Y <= MAX_LEN );
ASSERT_ALLOC( X, len_X_byte );
ASSERT_ALLOC( Y, len_Y_byte );
ASSERT_ALLOC( X, len_X );
ASSERT_ALLOC( Y, len_Y );
TEST_ASSERT( mbedtls_mpi_core_read_be( X, len_X, input_X->x, input_X->len )
TEST_ASSERT( mbedtls_mpi_core_read_be( X, limbs_X, input_X->x, input_X->len )
== 0 );
TEST_ASSERT( mbedtls_mpi_core_read_be( Y, len_Y, input_Y->x, input_Y->len )
TEST_ASSERT( mbedtls_mpi_core_read_be( Y, limbs_Y, input_Y->x, input_Y->len )
== 0 );
/* condition is false */
TEST_CF_SECRET( X, len_X_byte );
TEST_CF_SECRET( Y, len_Y_byte );
TEST_CF_SECRET( X, len_X );
TEST_CF_SECRET( Y, len_Y );
mbedtls_mpi_core_cond_assign( X, Y, len_Y, 0 );
mbedtls_mpi_core_cond_assign( X, Y, limbs_Y, 0 );
TEST_CF_PUBLIC( X, len_X_byte );
TEST_CF_PUBLIC( Y, len_Y_byte );
TEST_CF_PUBLIC( X, len_X );
TEST_CF_PUBLIC( Y, len_Y );
TEST_ASSERT( memcmp( X, Y, MIN( len_X_byte, len_Y_byte ) ) != 0 );
TEST_ASSERT( memcmp( X, Y, MIN( len_X, len_Y ) ) != 0 );
/* condition is true */
TEST_CF_SECRET( X, len_X_byte );
TEST_CF_SECRET( Y, len_Y_byte );
TEST_CF_SECRET( X, len_X );
TEST_CF_SECRET( Y, len_Y );
mbedtls_mpi_core_cond_assign( X, Y, len_Y, 1 );
mbedtls_mpi_core_cond_assign( X, Y, limbs_Y, 1 );
TEST_CF_PUBLIC( X, len_X_byte );
TEST_CF_PUBLIC( Y, len_Y_byte );
TEST_CF_PUBLIC( X, len_X );
TEST_CF_PUBLIC( Y, len_Y );
ASSERT_COMPARE( X, len_Y_byte, Y, len_Y_byte );
ASSERT_COMPARE( X, len_Y, Y, len_Y );
exit:
mbedtls_free( X );
@ -826,52 +826,52 @@ void mpi_core_cond_swap( data_t * input_X,
mbedtls_mpi_uint *tmp_Y = NULL;
mbedtls_mpi_uint *X = NULL;
mbedtls_mpi_uint *Y = NULL;
size_t len_X = CHARS_TO_LIMBS( input_X->len );
size_t len_Y = CHARS_TO_LIMBS( input_Y->len );
size_t len_X_byte = len_X * sizeof( mbedtls_mpi_uint );
size_t len_Y_byte = len_Y * sizeof( mbedtls_mpi_uint );
size_t limbs_X = CHARS_TO_LIMBS( input_X->len );
size_t limbs_Y = CHARS_TO_LIMBS( input_Y->len );
size_t len_X = limbs_X * sizeof( mbedtls_mpi_uint );
size_t len_Y = limbs_Y * sizeof( mbedtls_mpi_uint );
TEST_ASSERT( len_X <= MAX_LEN );
TEST_ASSERT( len_Y <= MAX_LEN );
TEST_ASSERT( limbs_X <= MAX_LEN );
TEST_ASSERT( limbs_Y <= MAX_LEN );
ASSERT_ALLOC( tmp_X, len_X_byte );
ASSERT_ALLOC( tmp_Y, len_Y_byte );
ASSERT_ALLOC( tmp_X, len_X );
ASSERT_ALLOC( tmp_Y, len_Y );
TEST_ASSERT( mbedtls_mpi_core_read_be( tmp_X, len_X,
TEST_ASSERT( mbedtls_mpi_core_read_be( tmp_X, limbs_X,
input_X->x, input_X->len )
== 0 );
ASSERT_ALLOC( X, len_X_byte );
memcpy( X, tmp_X, len_X_byte );
ASSERT_ALLOC( X, len_X );
memcpy( X, tmp_X, len_X );
TEST_ASSERT( mbedtls_mpi_core_read_be( tmp_Y, len_Y,
TEST_ASSERT( mbedtls_mpi_core_read_be( tmp_Y, limbs_Y,
input_Y->x, input_Y->len )
== 0 );
ASSERT_ALLOC( Y, len_Y_byte );
memcpy( Y, tmp_Y, len_Y_byte );
ASSERT_ALLOC( Y, len_Y );
memcpy( Y, tmp_Y, len_Y );
/* condition is false */
TEST_CF_SECRET( X, len_X_byte );
TEST_CF_SECRET( Y, len_Y_byte );
TEST_CF_SECRET( X, len_X );
TEST_CF_SECRET( Y, len_Y );
mbedtls_mpi_core_cond_swap( X, Y, len_X, 0 );
mbedtls_mpi_core_cond_swap( X, Y, limbs_X, 0 );
TEST_CF_PUBLIC( X, len_X_byte );
TEST_CF_PUBLIC( Y, len_Y_byte );
TEST_CF_PUBLIC( X, len_X );
TEST_CF_PUBLIC( Y, len_Y );
ASSERT_COMPARE( X, len_X_byte, tmp_X, len_X_byte );
ASSERT_COMPARE( Y, len_Y_byte, tmp_Y, len_Y_byte );
ASSERT_COMPARE( X, len_X, tmp_X, len_X );
ASSERT_COMPARE( Y, len_Y, tmp_Y, len_Y );
/* condition is true */
TEST_CF_SECRET( X, len_X_byte );
TEST_CF_SECRET( Y, len_Y_byte );
TEST_CF_SECRET( X, len_X );
TEST_CF_SECRET( Y, len_Y );
mbedtls_mpi_core_cond_swap( X, Y, len_X, 1 );
mbedtls_mpi_core_cond_swap( X, Y, limbs_X, 1 );
TEST_CF_PUBLIC( X, len_X_byte );
TEST_CF_PUBLIC( Y, len_Y_byte );
TEST_CF_PUBLIC( X, len_X );
TEST_CF_PUBLIC( Y, len_Y );
ASSERT_COMPARE( X, len_Y_byte, tmp_Y, len_Y_byte );
ASSERT_COMPARE( Y, len_X_byte, tmp_X, len_X_byte );
ASSERT_COMPARE( X, len_Y, tmp_Y, len_Y );
ASSERT_COMPARE( Y, len_X, tmp_X, len_X );
exit:
mbedtls_free( tmp_X );
@ -892,54 +892,54 @@ void mpi_mod_raw_cond_assign( data_t * input_X,
mbedtls_mpi_uint *Y = NULL;
mbedtls_mpi_uint buff_m[MAX_LEN];
mbedtls_mpi_mod_modulus m;
size_t len_X = CHARS_TO_LIMBS( input_X->len );
size_t len_Y = CHARS_TO_LIMBS( input_Y->len );
size_t len_X_byte = len_X * sizeof( mbedtls_mpi_uint );
size_t len_Y_byte = len_Y * sizeof( mbedtls_mpi_uint );
size_t limbs_X = CHARS_TO_LIMBS( input_X->len );
size_t limbs_Y = CHARS_TO_LIMBS( input_Y->len );
size_t len_X = limbs_X * sizeof( mbedtls_mpi_uint );
size_t len_Y = limbs_Y * sizeof( mbedtls_mpi_uint );
TEST_ASSERT( len_X <= MAX_LEN );
TEST_ASSERT( len_Y <= MAX_LEN );
TEST_ASSERT( limbs_X <= MAX_LEN );
TEST_ASSERT( limbs_Y <= MAX_LEN );
ASSERT_ALLOC( X, len_X_byte );
ASSERT_ALLOC( Y, len_Y_byte );
ASSERT_ALLOC( X, len_X );
ASSERT_ALLOC( Y, len_Y );
memset( buff_m, 0, MAX_LEN * sizeof( mbedtls_mpi_uint ) );
mbedtls_mpi_mod_modulus_init( &m );
TEST_ASSERT( mbedtls_mpi_mod_modulus_setup(
&m, buff_m, len_Y,
&m, buff_m, limbs_Y,
MBEDTLS_MPI_MOD_EXT_REP_BE,
MBEDTLS_MPI_MOD_REP_MONTGOMERY )
== 0 );
TEST_ASSERT( mbedtls_mpi_core_read_be( X, len_X,
TEST_ASSERT( mbedtls_mpi_core_read_be( X, limbs_X,
input_X->x, input_X->len )
== 0 );
TEST_ASSERT( mbedtls_mpi_core_read_be( Y, len_Y,
TEST_ASSERT( mbedtls_mpi_core_read_be( Y, limbs_Y,
input_Y->x, input_Y->len )
== 0 );
/* condition is false */
TEST_CF_SECRET( X, len_X_byte );
TEST_CF_SECRET( Y, len_Y_byte );
TEST_CF_SECRET( X, len_X );
TEST_CF_SECRET( Y, len_Y );
mbedtls_mpi_mod_raw_cond_assign( X, Y, &m, 0 );
TEST_CF_PUBLIC( X, len_X_byte );
TEST_CF_PUBLIC( Y, len_Y_byte );
TEST_CF_PUBLIC( X, len_X );
TEST_CF_PUBLIC( Y, len_Y );
TEST_ASSERT( memcmp( X, Y, m.limbs * sizeof( mbedtls_mpi_uint ) ) != 0 );
/* condition is true */
TEST_CF_SECRET( X, len_X_byte );
TEST_CF_SECRET( Y, len_Y_byte );
TEST_CF_SECRET( X, len_X );
TEST_CF_SECRET( Y, len_Y );
mbedtls_mpi_mod_raw_cond_assign( X, Y, &m, 1 );
TEST_CF_PUBLIC( X, len_X_byte );
TEST_CF_PUBLIC( Y, len_Y_byte );
TEST_CF_PUBLIC( X, len_X );
TEST_CF_PUBLIC( Y, len_Y );
ASSERT_COMPARE( X, len_Y_byte, Y, len_Y_byte );
ASSERT_COMPARE( X, len_Y, Y, len_Y );
exit:
mbedtls_free( X );
@ -962,59 +962,59 @@ void mpi_mod_raw_cond_swap( data_t * input_X,
mbedtls_mpi_uint *Y = NULL;
mbedtls_mpi_uint buff_m[MAX_LEN];
mbedtls_mpi_mod_modulus m;
size_t len_X = CHARS_TO_LIMBS( input_X->len );
size_t len_Y = CHARS_TO_LIMBS( input_Y->len );
size_t len_X_byte = len_X * sizeof( mbedtls_mpi_uint );
size_t len_Y_byte = len_Y * sizeof( mbedtls_mpi_uint );
size_t len_m_byte = len_X_byte;
size_t limbs_X = CHARS_TO_LIMBS( input_X->len );
size_t limbs_Y = CHARS_TO_LIMBS( input_Y->len );
size_t len_X = limbs_X * sizeof( mbedtls_mpi_uint );
size_t len_Y = limbs_Y * sizeof( mbedtls_mpi_uint );
size_t len_m = len_X;
TEST_ASSERT( len_X <= MAX_LEN );
TEST_ASSERT( len_Y <= MAX_LEN );
TEST_ASSERT( limbs_X <= MAX_LEN );
TEST_ASSERT( limbs_Y <= MAX_LEN );
ASSERT_ALLOC( tmp_X, len_X_byte );
ASSERT_ALLOC( tmp_Y, len_Y_byte );
ASSERT_ALLOC( tmp_X, len_X );
ASSERT_ALLOC( tmp_Y, len_Y );
memset( buff_m, 0, MAX_LEN * sizeof( mbedtls_mpi_uint ) );
mbedtls_mpi_mod_modulus_init( &m );
TEST_ASSERT( mbedtls_mpi_mod_modulus_setup(
&m, buff_m, len_X,
&m, buff_m, limbs_X,
MBEDTLS_MPI_MOD_EXT_REP_BE,
MBEDTLS_MPI_MOD_REP_MONTGOMERY )
== 0 );
TEST_ASSERT( mbedtls_mpi_core_read_be( tmp_X, len_X, input_X->x, input_X->len )
TEST_ASSERT( mbedtls_mpi_core_read_be( tmp_X, limbs_X, input_X->x, input_X->len )
== 0 );
ASSERT_ALLOC( X, len_X_byte );
memcpy( X, tmp_X, len_X_byte );
ASSERT_ALLOC( X, len_X );
memcpy( X, tmp_X, len_X );
TEST_ASSERT( mbedtls_mpi_core_read_be( tmp_Y, len_Y, input_Y->x, input_Y->len )
TEST_ASSERT( mbedtls_mpi_core_read_be( tmp_Y, limbs_Y, input_Y->x, input_Y->len )
== 0 );
ASSERT_ALLOC( Y, len_Y_byte );
memcpy( Y, tmp_Y, len_Y_byte );
ASSERT_ALLOC( Y, len_Y );
memcpy( Y, tmp_Y, len_Y );
/* condition is false */
TEST_CF_SECRET( X, len_X_byte );
TEST_CF_SECRET( Y, len_Y_byte );
TEST_CF_SECRET( X, len_X );
TEST_CF_SECRET( Y, len_Y );
mbedtls_mpi_mod_raw_cond_swap( X, Y, &m, 0 );
TEST_CF_PUBLIC( X, len_X_byte );
TEST_CF_PUBLIC( Y, len_Y_byte );
TEST_CF_PUBLIC( X, len_X );
TEST_CF_PUBLIC( Y, len_Y );
ASSERT_COMPARE( X, len_X_byte, tmp_X, len_X_byte );
ASSERT_COMPARE( Y, len_Y_byte, tmp_Y, len_Y_byte );
ASSERT_COMPARE( X, len_X, tmp_X, len_X );
ASSERT_COMPARE( Y, len_Y, tmp_Y, len_Y );
/* condition is true */
TEST_CF_SECRET( X, len_X_byte );
TEST_CF_SECRET( Y, len_Y_byte );
TEST_CF_SECRET( X, len_X );
TEST_CF_SECRET( Y, len_Y );
mbedtls_mpi_mod_raw_cond_swap( X, Y, &m, 1 );
TEST_CF_PUBLIC( X, len_X_byte );
TEST_CF_PUBLIC( Y, len_Y_byte );
TEST_CF_PUBLIC( X, len_X );
TEST_CF_PUBLIC( Y, len_Y );
ASSERT_COMPARE( X, len_m_byte, tmp_Y, len_Y_byte );
ASSERT_COMPARE( Y, len_m_byte, tmp_X, len_X_byte );
ASSERT_COMPARE( X, len_m, tmp_Y, len_Y );
ASSERT_COMPARE( Y, len_m, tmp_X, len_X );
exit:
mbedtls_free( tmp_X );