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Made supported curves configurable

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This commit is contained in:
Paul Bakker 2013-06-29 23:26:34 +02:00
parent e2ab84f4a1
commit 5dc6b5fb05
6 changed files with 141 additions and 12 deletions
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34
library/ecp.c
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@ -352,6 +352,7 @@ cleanup:
return( ret );
}
#if defined(POLARSSL_ECP_DP_SECP192R1_ENABLED)
/*
* 192 bits in terms of t_uint
*/
@ -425,7 +426,9 @@ static int ecp_mod_p192( mpi *N )
cleanup:
return( ret );
}
#endif /* POLARSSL_ECP_DP_SECP192R1_ENABLED */
#if defined(POLARSSL_ECP_DP_SECP521R1_ENABLED)
/*
* Size of p521 in terms of t_uint
*/
@ -467,6 +470,7 @@ static int ecp_mod_p521( mpi *N )
cleanup:
return( ret );
}
#endif /* POLARSSL_ECP_DP_SECP521R1_ENABLED */
/*
* Domain parameters for secp192r1
@ -562,32 +566,42 @@ int ecp_use_known_dp( ecp_group *grp, ecp_group_id id )
switch( id )
{
#if defined(POLARSSL_ECP_DP_SECP192R1_ENABLED)
case POLARSSL_ECP_DP_SECP192R1:
grp->modp = ecp_mod_p192;
return( ecp_group_read_string( grp, 16,
SECP192R1_P, SECP192R1_B,
SECP192R1_GX, SECP192R1_GY, SECP192R1_N ) );
#endif /* POLARSSL_ECP_DP_SECP192R1_ENABLED */
#if defined(POLARSSL_ECP_DP_SECP224R1_ENABLED)
case POLARSSL_ECP_DP_SECP224R1:
return( ecp_group_read_string( grp, 16,
SECP224R1_P, SECP224R1_B,
SECP224R1_GX, SECP224R1_GY, SECP224R1_N ) );
#endif /* POLARSSL_ECP_DP_SECP224R1_ENABLED */
#if defined(POLARSSL_ECP_DP_SECP256R1_ENABLED)
case POLARSSL_ECP_DP_SECP256R1:
return( ecp_group_read_string( grp, 16,
SECP256R1_P, SECP256R1_B,
SECP256R1_GX, SECP256R1_GY, SECP256R1_N ) );
#endif /* POLARSSL_ECP_DP_SECP256R1_ENABLED */
#if defined(POLARSSL_ECP_DP_SECP384R1_ENABLED)
case POLARSSL_ECP_DP_SECP384R1:
return( ecp_group_read_string( grp, 16,
SECP384R1_P, SECP384R1_B,
SECP384R1_GX, SECP384R1_GY, SECP384R1_N ) );
#endif /* POLARSSL_ECP_DP_SECP384R1_ENABLED */
#if defined(POLARSSL_ECP_DP_SECP521R1_ENABLED)
case POLARSSL_ECP_DP_SECP521R1:
grp->modp = ecp_mod_p521;
return( ecp_group_read_string( grp, 16,
SECP521R1_P, SECP521R1_B,
SECP521R1_GX, SECP521R1_GY, SECP521R1_N ) );
#endif /* POLARSSL_ECP_DP_SECP521R1_ENABLED */
}
return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
@ -1311,7 +1325,27 @@ int ecp_self_test( int verbose )
ecp_point_init( &R );
mpi_init( &m );
#if defined(POLARSSL_ECP_DP_SECP192R1_ENABLED)
MPI_CHK( ecp_use_known_dp( &grp, POLARSSL_ECP_DP_SECP192R1 ) );
#else
#if defined(POLARSSL_ECP_DP_SECP224R1_ENABLED)
MPI_CHK( ecp_use_known_dp( &grp, POLARSSL_ECP_DP_SECP224R1 ) );
#else
#if defined(POLARSSL_ECP_DP_SECP256R1_ENABLED)
MPI_CHK( ecp_use_known_dp( &grp, POLARSSL_ECP_DP_SECP256R1 ) );
#else
#if defined(POLARSSL_ECP_DP_SECP384R1_ENABLED)
MPI_CHK( ecp_use_known_dp( &grp, POLARSSL_ECP_DP_SECP384R1 ) );
#else
#if defined(POLARSSL_ECP_DP_SECP521R1_ENABLED)
MPI_CHK( ecp_use_known_dp( &grp, POLARSSL_ECP_DP_SECP521R1 ) );
#else
#error No curves defines
#endif /* POLARSSL_ECP_DP_SECP512R1_ENABLED */
#endif /* POLARSSL_ECP_DP_SECP384R1_ENABLED */
#endif /* POLARSSL_ECP_DP_SECP256R1_ENABLED */
#endif /* POLARSSL_ECP_DP_SECP224R1_ENABLED */
#endif /* POLARSSL_ECP_DP_SECP192R1_ENABLED */
if( verbose != 0 )
printf( " ECP test #1 (SPA resistance): " );