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Avoid complaints about undeclared non-static symbols

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Clang was complaining and check-names.sh too

This only duplicates macros, so no impact on code size. In 3.0 we can
probably avoid the duplication by using an internal header under
library/ but this won't work for 2.16.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard 2021-06-23 12:53:18 +02:00 committed by Janos Follath
parent ae48111294
commit 520f0a0ea0
2 changed files with 42 additions and 27 deletions
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47
library/ecp.c
View file

@ -2936,9 +2936,46 @@ int mbedtls_ecp_muladd( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
#if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
/* The following constants are defined in ecp_curves.c */
extern const mbedtls_mpi mbedtls_ecp_x25519_bad_point_1;
extern const mbedtls_mpi mbedtls_ecp_x25519_bad_point_2;
/* Duplicated macros from ecp_curves.c */
#if defined(MBEDTLS_HAVE_INT32)
#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
BYTES_TO_T_UINT_4( a, b, c, d ), \
BYTES_TO_T_UINT_4( e, f, g, h )
#else /* 64-bits */
#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
( (mbedtls_mpi_uint) (a) << 0 ) | \
( (mbedtls_mpi_uint) (b) << 8 ) | \
( (mbedtls_mpi_uint) (c) << 16 ) | \
( (mbedtls_mpi_uint) (d) << 24 ) | \
( (mbedtls_mpi_uint) (e) << 32 ) | \
( (mbedtls_mpi_uint) (f) << 40 ) | \
( (mbedtls_mpi_uint) (g) << 48 ) | \
( (mbedtls_mpi_uint) (h) << 56 )
#endif /* bits in mbedtls_mpi_uint */
#define ECP_MPI_INIT(s, n, p) {s, (n), (mbedtls_mpi_uint *)(p)}
#define ECP_MPI_INIT_ARRAY(x) \
ECP_MPI_INIT(1, sizeof(x) / sizeof(mbedtls_mpi_uint), x)
/*
* Constants for the two points other than 0, 1, -1 (mod p) in
* https://cr.yp.to/ecdh.html#validate
* See ecp_check_pubkey_x25519().
*/
static const mbedtls_mpi_uint x25519_bad_point_1[] = {
BYTES_TO_T_UINT_8( 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae ),
BYTES_TO_T_UINT_8( 0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a ),
BYTES_TO_T_UINT_8( 0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd ),
BYTES_TO_T_UINT_8( 0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x00 ),
};
static const mbedtls_mpi_uint x25519_bad_point_2[] = {
BYTES_TO_T_UINT_8( 0x5f, 0x9c, 0x95, 0xbc, 0xa3, 0x50, 0x8c, 0x24 ),
BYTES_TO_T_UINT_8( 0xb1, 0xd0, 0xb1, 0x55, 0x9c, 0x83, 0xef, 0x5b ),
BYTES_TO_T_UINT_8( 0x04, 0x44, 0x5c, 0xc4, 0x58, 0x1c, 0x8e, 0x86 ),
BYTES_TO_T_UINT_8( 0xd8, 0x22, 0x4e, 0xdd, 0xd0, 0x9f, 0x11, 0x57 ),
};
static const mbedtls_mpi ecp_x25519_bad_point_1 = ECP_MPI_INIT_ARRAY(
x25519_bad_point_1 );
static const mbedtls_mpi ecp_x25519_bad_point_2 = ECP_MPI_INIT_ARRAY(
x25519_bad_point_2 );
/*
* Check that the input point is not one of the low-order points.
@ -2964,10 +3001,10 @@ static int ecp_check_pubkey_x25519( const mbedtls_mpi *X, const mbedtls_mpi *P )
if( mbedtls_mpi_cmp_int( &XmP, 1 ) <= 0 ) /* takes care of 0 and 1 */
return( MBEDTLS_ERR_ECP_INVALID_KEY );
if( mbedtls_mpi_cmp_mpi( &XmP, &mbedtls_ecp_x25519_bad_point_1 ) == 0 )
if( mbedtls_mpi_cmp_mpi( &XmP, &ecp_x25519_bad_point_1 ) == 0 )
return( MBEDTLS_ERR_ECP_INVALID_KEY );
if( mbedtls_mpi_cmp_mpi( &XmP, &mbedtls_ecp_x25519_bad_point_2 ) == 0 )
if( mbedtls_mpi_cmp_mpi( &XmP, &ecp_x25519_bad_point_2 ) == 0 )
return( MBEDTLS_ERR_ECP_INVALID_KEY );
/* Final check: check if XmP + 1 is P (final because it changes XmP!) */

22
library/ecp_curves.c
View file

@ -729,28 +729,6 @@ cleanup:
return( ret );
}
/*
* Constants for the two points other than 0, 1, -1 (mod p) in
* https://cr.yp.to/ecdh.html#validate
* See ecp_check_pubkey_x25519().
*/
static const mbedtls_mpi_uint x25519_bad_point_1[] = {
BYTES_TO_T_UINT_8( 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae ),
BYTES_TO_T_UINT_8( 0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a ),
BYTES_TO_T_UINT_8( 0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd ),
BYTES_TO_T_UINT_8( 0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x00 ),
};
static const mbedtls_mpi_uint x25519_bad_point_2[] = {
BYTES_TO_T_UINT_8( 0x5f, 0x9c, 0x95, 0xbc, 0xa3, 0x50, 0x8c, 0x24 ),
BYTES_TO_T_UINT_8( 0xb1, 0xd0, 0xb1, 0x55, 0x9c, 0x83, 0xef, 0x5b ),
BYTES_TO_T_UINT_8( 0x04, 0x44, 0x5c, 0xc4, 0x58, 0x1c, 0x8e, 0x86 ),
BYTES_TO_T_UINT_8( 0xd8, 0x22, 0x4e, 0xdd, 0xd0, 0x9f, 0x11, 0x57 ),
};
const mbedtls_mpi mbedtls_ecp_x25519_bad_point_1 = ECP_MPI_INIT_ARRAY(
x25519_bad_point_1 );
const mbedtls_mpi mbedtls_ecp_x25519_bad_point_2 = ECP_MPI_INIT_ARRAY(
x25519_bad_point_2 );
#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)