mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-25 18:15:40 +01:00
Merge pull request #3027 from gilles-peskine-arm/mpi_copy_shrink-2.16
Backport 2.16: Improve robustness and testing of mbedtls_mpi_copy
This commit is contained in:
Manuel Pégourié-Gonnard
GitHub
commit
8d9b1c471c
@ -157,9 +157,10 @@ int mbedtls_mpi_shrink( mbedtls_mpi *X, size_t nblimbs )
|
||||
if( nblimbs > MBEDTLS_MPI_MAX_LIMBS )
|
||||
return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
|
||||
|
||||
/* Actually resize up in this case */
|
||||
/* Actually resize up if there are currently fewer than nblimbs limbs. */
|
||||
if( X->n <= nblimbs )
|
||||
return( mbedtls_mpi_grow( X, nblimbs ) );
|
||||
/* After this point, then X->n > nblimbs and in particular X->n > 0. */
|
||||
|
||||
for( i = X->n - 1; i > 0; i-- )
|
||||
if( X->p[i] != 0 )
|
||||
@ -198,7 +199,7 @@ int mbedtls_mpi_copy( mbedtls_mpi *X, const mbedtls_mpi *Y )
|
||||
if( X == Y )
|
||||
return( 0 );
|
||||
|
||||
if( Y->p == NULL )
|
||||
if( Y->n == 0 )
|
||||
{
|
||||
mbedtls_mpi_free( X );
|
||||
return( 0 );
|
||||
|
||||
@ -280,37 +280,106 @@ mbedtls_mpi_cmp_abs:10:"2":10:"-3":-1
|
||||
Base test mbedtls_mpi_cmp_abs (Mix values) #3
|
||||
mbedtls_mpi_cmp_abs:10:"-2":10:"1":1
|
||||
|
||||
Base test mbedtls_mpi_copy #1
|
||||
mbedtls_mpi_copy:0:1500
|
||||
Copy zero (1 limb) to positive (1 limb)
|
||||
mbedtls_mpi_copy_sint:0:1500
|
||||
|
||||
Base test mpi_copy_self #1
|
||||
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
|
||||
|
||||
Base test mbedtls_mpi_swap #1
|
||||
mbedtls_mpi_swap:0:1500
|
||||
Copy self: zero (1 limb)
|
||||
mpi_copy_self:0
|
||||
|
||||
Test mbedtls_mpi_shrink #1
|
||||
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 limbs in a buffer of size 2 to 4
|
||||
mbedtls_mpi_shrink:2:2:4:4
|
||||
|
||||
Test mbedtls_mpi_shrink #2
|
||||
Shrink 2 limbs in a buffer of size 4 to 4
|
||||
mbedtls_mpi_shrink:4:2:4:4
|
||||
|
||||
Test mbedtls_mpi_shrink #3
|
||||
Shrink 2 limbs in a buffer of size 8 to 4
|
||||
mbedtls_mpi_shrink:8:2:4:4
|
||||
|
||||
Test mbedtls_mpi_shrink #4
|
||||
Shrink 4 limbs in a buffer of size 8 to 4
|
||||
mbedtls_mpi_shrink:8:4:4:4
|
||||
|
||||
Test mbedtls_mpi_shrink #5
|
||||
Shrink 6 limbs in a buffer of size 8 to 4 yielding 6
|
||||
mbedtls_mpi_shrink:8:6:4:6
|
||||
|
||||
Test mbedtls_mpi_shrink #6
|
||||
Shrink 2 limbs in a buffer of size 4 to 0 yielding 2
|
||||
mbedtls_mpi_shrink:4:2:0:2
|
||||
|
||||
Test mbedtls_mpi_shrink #7
|
||||
Shrink 1 limbs in a buffer of size 4 to 0 yielding 1
|
||||
mbedtls_mpi_shrink:4:1:0:1
|
||||
|
||||
Test mbedtls_mpi_shrink #8
|
||||
Shrink 0 limbs in a buffer of size 4 to 0 yielding 1
|
||||
mbedtls_mpi_shrink:4:0:0:1
|
||||
|
||||
Test mbedtls_mpi_safe_cond_assign #1
|
||||
|
||||
@ -579,22 +579,40 @@ 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( &X, input_X->x, input_X->len ) == 0 );
|
||||
TEST_ASSERT( mbedtls_mpi_read_binary( &Y, input_Y->x, input_Y->len ) == 0 );
|
||||
TEST_ASSERT( mbedtls_mpi_read_binary( &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 */
|
||||
|
||||
@ -686,22 +704,61 @@ 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( &X, input_X->x, input_X->len ) == 0 );
|
||||
TEST_ASSERT( mbedtls_mpi_read_binary( &Y, input_Y->x, input_Y->len ) == 0 );
|
||||
TEST_ASSERT( mbedtls_mpi_read_binary( &X0, input_X->x, input_X->len ) == 0 );
|
||||
TEST_ASSERT( mbedtls_mpi_read_binary( &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( &X, input_X->x, input_X->len ) == 0 );
|
||||
TEST_ASSERT( mbedtls_mpi_read_binary( &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 */
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user