mirror of
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Update external polarssl to 1.3.8
There were some fixes back on March 13th, 2014 for fixing compiling on MIPS64. Also some fixes on June 25th, 2014 for SPARC64 fixes. Probably more things, but those are what I care about.
This commit is contained in:
Ryan Houdek
176
Externals/polarssl/library/ecp.c
vendored
176
Externals/polarssl/library/ecp.c
vendored
@ -1,7 +1,7 @@
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/*
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* Elliptic curves over GF(p): generic functions
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*
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* Copyright (C) 2006-2013, Brainspark B.V.
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* Copyright (C) 2006-2014, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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@ -44,15 +44,20 @@
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* <http://eprint.iacr.org/2004/342.pdf>
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*/
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#if !defined(POLARSSL_CONFIG_FILE)
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#include "polarssl/config.h"
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#else
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#include POLARSSL_CONFIG_FILE
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#endif
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#if defined(POLARSSL_ECP_C)
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#include "polarssl/ecp.h"
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#if defined(POLARSSL_MEMORY_C)
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#include "polarssl/memory.h"
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#if defined(POLARSSL_PLATFORM_C)
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#include "polarssl/platform.h"
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#else
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#define polarssl_printf printf
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#define polarssl_malloc malloc
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#define polarssl_free free
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#endif
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@ -72,6 +77,11 @@
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#endif /* __ARMCC_VERSION */
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#endif /*_MSC_VER */
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/* Implementation that should never be optimized out by the compiler */
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static void polarssl_zeroize( void *v, size_t n ) {
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volatile unsigned char *p = v; while( n-- ) *p++ = 0;
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}
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#if defined(POLARSSL_SELF_TEST)
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/*
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* Counts of point addition and doubling, and field multiplications.
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@ -87,7 +97,10 @@ static unsigned long add_count, dbl_count, mul_count;
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defined(POLARSSL_ECP_DP_SECP521R1_ENABLED) || \
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defined(POLARSSL_ECP_DP_BP256R1_ENABLED) || \
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defined(POLARSSL_ECP_DP_BP384R1_ENABLED) || \
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defined(POLARSSL_ECP_DP_BP512R1_ENABLED)
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defined(POLARSSL_ECP_DP_BP512R1_ENABLED) || \
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defined(POLARSSL_ECP_DP_SECP192K1_ENABLED) || \
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defined(POLARSSL_ECP_DP_SECP224K1_ENABLED) || \
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defined(POLARSSL_ECP_DP_SECP256K1_ENABLED)
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#define POLARSSL_ECP_SHORT_WEIERSTRASS
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#endif
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@ -114,55 +127,89 @@ typedef enum
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* - TLS NamedCurve ID (RFC 4492 sec. 5.1.1, RFC 7071 sec. 2)
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* - size in bits
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* - readable name
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*
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* Curves are listed in order: largest curves first, and for a given size,
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* fastest curves first. This provides the default order for the SSL module.
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*/
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static const ecp_curve_info ecp_supported_curves[] =
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{
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#if defined(POLARSSL_ECP_DP_BP512R1_ENABLED)
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{ POLARSSL_ECP_DP_BP512R1, 28, 512, "brainpoolP512r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_BP384R1_ENABLED)
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{ POLARSSL_ECP_DP_BP384R1, 27, 384, "brainpoolP384r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_BP256R1_ENABLED)
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{ POLARSSL_ECP_DP_BP256R1, 26, 256, "brainpoolP256r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP521R1_ENABLED)
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{ POLARSSL_ECP_DP_SECP521R1, 25, 521, "secp521r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_BP512R1_ENABLED)
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{ POLARSSL_ECP_DP_BP512R1, 28, 512, "brainpoolP512r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP384R1_ENABLED)
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{ POLARSSL_ECP_DP_SECP384R1, 24, 384, "secp384r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_BP384R1_ENABLED)
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{ POLARSSL_ECP_DP_BP384R1, 27, 384, "brainpoolP384r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP256R1_ENABLED)
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{ POLARSSL_ECP_DP_SECP256R1, 23, 256, "secp256r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP224R1_ENABLED)
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{ POLARSSL_ECP_DP_SECP224R1, 21, 224, "secp224r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP192R1_ENABLED)
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{ POLARSSL_ECP_DP_SECP192R1, 19, 192, "secp192r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP256K1_ENABLED)
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{ POLARSSL_ECP_DP_SECP256K1, 22, 256, "secp256k1" },
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#endif
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#if defined(POLARSSL_ECP_DP_BP256R1_ENABLED)
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{ POLARSSL_ECP_DP_BP256R1, 26, 256, "brainpoolP256r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP224R1_ENABLED)
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{ POLARSSL_ECP_DP_SECP224R1, 21, 224, "secp224r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP224K1_ENABLED)
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{ POLARSSL_ECP_DP_SECP224K1, 20, 224, "secp224k1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP192R1_ENABLED)
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{ POLARSSL_ECP_DP_SECP192R1, 19, 192, "secp192r1" },
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#endif
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#if defined(POLARSSL_ECP_DP_SECP192K1_ENABLED)
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{ POLARSSL_ECP_DP_SECP192K1, 18, 192, "secp192k1" },
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#endif
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{ POLARSSL_ECP_DP_NONE, 0, 0, NULL },
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};
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#define ECP_NB_CURVES sizeof( ecp_supported_curves ) / \
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sizeof( ecp_supported_curves[0] )
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static ecp_group_id ecp_supported_grp_id[ECP_NB_CURVES];
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/*
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* List of supported curves and associated info
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*/
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const ecp_curve_info *ecp_curve_list( void )
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{
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return ecp_supported_curves;
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return( ecp_supported_curves );
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}
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/*
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* Get the curve info for the internal identifer
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* List of supported curves, group ID only
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*/
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const ecp_group_id *ecp_grp_id_list( void )
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{
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static int init_done = 0;
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if( ! init_done )
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{
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size_t i = 0;
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const ecp_curve_info *curve_info;
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for( curve_info = ecp_curve_list();
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curve_info->grp_id != POLARSSL_ECP_DP_NONE;
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curve_info++ )
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{
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ecp_supported_grp_id[i++] = curve_info->grp_id;
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}
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ecp_supported_grp_id[i] = POLARSSL_ECP_DP_NONE;
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init_done = 1;
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}
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return( ecp_supported_grp_id );
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}
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/*
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* Get the curve info for the internal identifier
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*/
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const ecp_curve_info *ecp_curve_info_from_grp_id( ecp_group_id grp_id )
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{
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@ -258,7 +305,7 @@ void ecp_group_init( ecp_group *grp )
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*/
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void ecp_keypair_init( ecp_keypair *key )
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{
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if ( key == NULL )
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if( key == NULL )
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return;
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ecp_group_init( &key->grp );
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@ -305,7 +352,7 @@ void ecp_group_free( ecp_group *grp )
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polarssl_free( grp->T );
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}
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memset( grp, 0, sizeof( ecp_group ) );
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polarssl_zeroize( grp, sizeof( ecp_group ) );
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}
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/*
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@ -313,7 +360,7 @@ void ecp_group_free( ecp_group *grp )
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*/
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void ecp_keypair_free( ecp_keypair *key )
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{
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if ( key == NULL )
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if( key == NULL )
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return;
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ecp_group_free( &key->grp );
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@ -443,16 +490,28 @@ cleanup:
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* Import a point from unsigned binary data (SEC1 2.3.4)
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*/
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int ecp_point_read_binary( const ecp_group *grp, ecp_point *pt,
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const unsigned char *buf, size_t ilen ) {
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const unsigned char *buf, size_t ilen )
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{
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int ret;
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size_t plen;
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if( ilen == 1 && buf[0] == 0x00 )
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return( ecp_set_zero( pt ) );
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if ( ilen < 1 )
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return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
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if( buf[0] == 0x00 )
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{
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if( ilen == 1 )
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return( ecp_set_zero( pt ) );
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else
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return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
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}
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plen = mpi_size( &grp->P );
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if( ilen != 2 * plen + 1 || buf[0] != 0x04 )
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if( buf[0] != 0x04 )
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return( POLARSSL_ERR_ECP_FEATURE_UNAVAILABLE );
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if( ilen != 2 * plen + 1 )
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return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
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MPI_CHK( mpi_read_binary( &pt->X, buf + 1, plen ) );
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@ -476,7 +535,7 @@ int ecp_tls_read_point( const ecp_group *grp, ecp_point *pt,
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const unsigned char *buf_start;
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/*
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* We must have at least two bytes (1 for length, at least of for data)
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* We must have at least two bytes (1 for length, at least one for data)
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*/
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if( buf_len < 2 )
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return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
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@ -522,7 +581,7 @@ int ecp_tls_write_point( const ecp_group *grp, const ecp_point *pt,
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buf[0] = (unsigned char) *olen;
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++*olen;
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return 0;
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return( 0 );
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}
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/*
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@ -611,7 +670,7 @@ int ecp_tls_write_group( const ecp_group *grp, size_t *olen,
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buf[0] = curve_info->tls_id >> 8;
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buf[1] = curve_info->tls_id & 0xFF;
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return 0;
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return( 0 );
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}
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/*
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@ -1070,7 +1129,7 @@ static int ecp_randomize_jac( const ecp_group *grp, ecp_point *pt,
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{
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int ret;
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mpi l, ll;
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size_t p_size = (grp->pbits + 7) / 8;
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size_t p_size = ( grp->pbits + 7 ) / 8;
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int count = 0;
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mpi_init( &l ); mpi_init( &ll );
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@ -1081,7 +1140,7 @@ static int ecp_randomize_jac( const ecp_group *grp, ecp_point *pt,
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mpi_fill_random( &l, p_size, f_rng, p_rng );
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while( mpi_cmp_mpi( &l, &grp->P ) >= 0 )
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mpi_shift_r( &l, 1 );
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MPI_CHK( mpi_shift_r( &l, 1 ) );
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if( count++ > 10 )
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return( POLARSSL_ERR_ECP_RANDOM_FAILED );
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@ -1194,7 +1253,7 @@ static int ecp_precompute_comb( const ecp_group *grp,
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MPI_CHK( ecp_copy( &T[0], P ) );
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k = 0;
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for( i = 1; i < ( 1U << (w-1) ); i <<= 1 )
|
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for( i = 1; i < ( 1U << ( w - 1 ) ); i <<= 1 )
|
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{
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cur = T + i;
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MPI_CHK( ecp_copy( cur, T + ( i >> 1 ) ) );
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@ -1211,7 +1270,7 @@ static int ecp_precompute_comb( const ecp_group *grp,
|
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* Be careful to update T[2^l] only after using it!
|
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*/
|
||||
k = 0;
|
||||
for( i = 1; i < ( 1U << (w-1) ); i <<= 1 )
|
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for( i = 1; i < ( 1U << ( w - 1 ) ); i <<= 1 )
|
||||
{
|
||||
j = i;
|
||||
while( j-- )
|
||||
@ -1455,7 +1514,7 @@ static int ecp_randomize_mxz( const ecp_group *grp, ecp_point *P,
|
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{
|
||||
int ret;
|
||||
mpi l;
|
||||
size_t p_size = (grp->pbits + 7) / 8;
|
||||
size_t p_size = ( grp->pbits + 7 ) / 8;
|
||||
int count = 0;
|
||||
|
||||
mpi_init( &l );
|
||||
@ -1466,7 +1525,7 @@ static int ecp_randomize_mxz( const ecp_group *grp, ecp_point *P,
|
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mpi_fill_random( &l, p_size, f_rng, p_rng );
|
||||
|
||||
while( mpi_cmp_mpi( &l, &grp->P ) >= 0 )
|
||||
mpi_shift_r( &l, 1 );
|
||||
MPI_CHK( mpi_shift_r( &l, 1 ) );
|
||||
|
||||
if( count++ > 10 )
|
||||
return( POLARSSL_ERR_ECP_RANDOM_FAILED );
|
||||
@ -1554,7 +1613,7 @@ static int ecp_mul_mxz( ecp_group *grp, ecp_point *R,
|
||||
ecp_point_init( &RP ); mpi_init( &PX );
|
||||
|
||||
/* Save PX and read from P before writing to R, in case P == R */
|
||||
mpi_copy( &PX, &P->X );
|
||||
MPI_CHK( mpi_copy( &PX, &P->X ) );
|
||||
MPI_CHK( ecp_copy( &RP, P ) );
|
||||
|
||||
/* Set R to zero in modified x/z coordinates */
|
||||
@ -1728,7 +1787,7 @@ int ecp_check_privkey( const ecp_group *grp, const mpi *d )
|
||||
else
|
||||
return( 0 );
|
||||
}
|
||||
#endif
|
||||
#endif /* POLARSSL_ECP_MONTGOMERY */
|
||||
#if defined(POLARSSL_ECP_SHORT_WEIERSTRASS)
|
||||
if( ecp_get_type( grp ) == POLARSSL_ECP_TYPE_SHORT_WEIERSTRASS )
|
||||
{
|
||||
@ -1739,7 +1798,7 @@ int ecp_check_privkey( const ecp_group *grp, const mpi *d )
|
||||
else
|
||||
return( 0 );
|
||||
}
|
||||
#endif
|
||||
#endif /* POLARSSL_ECP_SHORT_WEIERSTRASS */
|
||||
|
||||
return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
|
||||
}
|
||||
@ -1752,7 +1811,7 @@ int ecp_gen_keypair( ecp_group *grp, mpi *d, ecp_point *Q,
|
||||
void *p_rng )
|
||||
{
|
||||
int ret;
|
||||
size_t n_size = (grp->nbits + 7) / 8;
|
||||
size_t n_size = ( grp->nbits + 7 ) / 8;
|
||||
|
||||
#if defined(POLARSSL_ECP_MONTGOMERY)
|
||||
if( ecp_get_type( grp ) == POLARSSL_ECP_TYPE_MONTGOMERY )
|
||||
@ -1775,7 +1834,7 @@ int ecp_gen_keypair( ecp_group *grp, mpi *d, ecp_point *Q,
|
||||
MPI_CHK( mpi_set_bit( d, 2, 0 ) );
|
||||
}
|
||||
else
|
||||
#endif
|
||||
#endif /* POLARSSL_ECP_MONTGOMERY */
|
||||
#if defined(POLARSSL_ECP_SHORT_WEIERSTRASS)
|
||||
if( ecp_get_type( grp ) == POLARSSL_ECP_TYPE_SHORT_WEIERSTRASS )
|
||||
{
|
||||
@ -1796,14 +1855,23 @@ int ecp_gen_keypair( ecp_group *grp, mpi *d, ecp_point *Q,
|
||||
MPI_CHK( mpi_read_binary( d, rnd, n_size ) );
|
||||
MPI_CHK( mpi_shift_r( d, 8 * n_size - grp->nbits ) );
|
||||
|
||||
if( count++ > 10 )
|
||||
/*
|
||||
* Each try has at worst a probability 1/2 of failing (the msb has
|
||||
* a probability 1/2 of being 0, and then the result will be < N),
|
||||
* so after 30 tries failure probability is a most 2**(-30).
|
||||
*
|
||||
* For most curves, 1 try is enough with overwhelming probability,
|
||||
* since N starts with a lot of 1s in binary, but some curves
|
||||
* such as secp224k1 are actually very close to the worst case.
|
||||
*/
|
||||
if( ++count > 30 )
|
||||
return( POLARSSL_ERR_ECP_RANDOM_FAILED );
|
||||
}
|
||||
while( mpi_cmp_int( d, 1 ) < 0 ||
|
||||
mpi_cmp_mpi( d, &grp->N ) >= 0 );
|
||||
}
|
||||
else
|
||||
#endif
|
||||
#endif /* POLARSSL_ECP_SHORT_WEIERSTRASS */
|
||||
return( POLARSSL_ERR_ECP_BAD_INPUT_DATA );
|
||||
|
||||
cleanup:
|
||||
@ -1864,7 +1932,7 @@ int ecp_self_test( int verbose )
|
||||
#endif
|
||||
|
||||
if( verbose != 0 )
|
||||
printf( " ECP test #1 (constant op_count, base point G): " );
|
||||
polarssl_printf( " ECP test #1 (constant op_count, base point G): " );
|
||||
|
||||
/* Do a dummy multiplication first to trigger precomputation */
|
||||
MPI_CHK( mpi_lset( &m, 2 ) );
|
||||
@ -1893,7 +1961,7 @@ int ecp_self_test( int verbose )
|
||||
mul_count != mul_c_prev )
|
||||
{
|
||||
if( verbose != 0 )
|
||||
printf( "failed (%u)\n", (unsigned int) i );
|
||||
polarssl_printf( "failed (%u)\n", (unsigned int) i );
|
||||
|
||||
ret = 1;
|
||||
goto cleanup;
|
||||
@ -1901,10 +1969,10 @@ int ecp_self_test( int verbose )
|
||||
}
|
||||
|
||||
if( verbose != 0 )
|
||||
printf( "passed\n" );
|
||||
polarssl_printf( "passed\n" );
|
||||
|
||||
if( verbose != 0 )
|
||||
printf( " ECP test #2 (constant op_count, other point): " );
|
||||
polarssl_printf( " ECP test #2 (constant op_count, other point): " );
|
||||
/* We computed P = 2G last time, use it */
|
||||
|
||||
add_count = 0;
|
||||
@ -1930,7 +1998,7 @@ int ecp_self_test( int verbose )
|
||||
mul_count != mul_c_prev )
|
||||
{
|
||||
if( verbose != 0 )
|
||||
printf( "failed (%u)\n", (unsigned int) i );
|
||||
polarssl_printf( "failed (%u)\n", (unsigned int) i );
|
||||
|
||||
ret = 1;
|
||||
goto cleanup;
|
||||
@ -1938,12 +2006,12 @@ int ecp_self_test( int verbose )
|
||||
}
|
||||
|
||||
if( verbose != 0 )
|
||||
printf( "passed\n" );
|
||||
polarssl_printf( "passed\n" );
|
||||
|
||||
cleanup:
|
||||
|
||||
if( ret < 0 && verbose != 0 )
|
||||
printf( "Unexpected error, return code = %08X\n", ret );
|
||||
polarssl_printf( "Unexpected error, return code = %08X\n", ret );
|
||||
|
||||
ecp_group_free( &grp );
|
||||
ecp_point_free( &R );
|
||||
@ -1951,11 +2019,11 @@ cleanup:
|
||||
mpi_free( &m );
|
||||
|
||||
if( verbose != 0 )
|
||||
printf( "\n" );
|
||||
polarssl_printf( "\n" );
|
||||
|
||||
return( ret );
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif /* POLARSSL_SELF_TEST */
|
||||
|
||||
#endif
|
||||
#endif /* POLARSSL_ECP_C */
|
||||
|
||||
Reference in New Issue
Block a user