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Combined internal LibTomMath configuration into one option

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CONFIG_INTERNAL_LIBTOMMATH_FAST=y in .config can now be used to enable all
optimized routines at a cost of about 4 kB. This is small enough increase
in size to justify simplified configuration.
This commit is contained in:
Jouni Malinen 2008-06-06 10:21:28 +03:00
parent ec0205a87a
commit b95394c66f
4 changed files with 21 additions and 30 deletions
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22
src/tls/libtommath.c
View file

@ -26,29 +26,29 @@
#define BN_S_MP_SQR_C
#define BN_S_MP_MUL_HIGH_DIGS_C /* Note: #undef in tommath_superclass.h; this
* would require other than mp_reduce */
#ifdef LTM_FAST_DIV
#ifdef LTM_FAST
/* Use faster div at the cost of about 1 kB */
#define BN_MP_MUL_D_C
#else /* LTM_FAST_DIV */
#define BN_MP_DIV_SMALL
#define BN_MP_INIT_MULTI_C
#define BN_MP_CLEAR_MULTI_C
#define BN_MP_ABS_C
#endif /* LTM_FAST_DIV */
#ifdef LTM_FAST_EXPTMOD
/* Include faster exptmod (Montgomery) at the cost of about 2.5 kB in code */
#define BN_MP_EXPTMOD_FAST_C
#define BN_MP_MONTGOMERY_SETUP_C
#define BN_FAST_MP_MONTGOMERY_REDUCE_C
#define BN_MP_MONTGOMERY_CALC_NORMALIZATION_C
#define BN_MP_MUL_2_C
#endif /* LTM_FAST_EXPTMOD */
#ifdef LTM_FAST_SQR
/* Include faster sqr at the cost of about 0.5 kB in code */
#define BN_FAST_S_MP_SQR_C
#endif /* LTM_FAST_SQR */
#else /* LTM_FAST */
#define BN_MP_DIV_SMALL
#define BN_MP_INIT_MULTI_C
#define BN_MP_CLEAR_MULTI_C
#define BN_MP_ABS_C
#endif /* LTM_FAST */
/* Current uses do not require support for negative exponent in exptmod, so we
* can save about 1.5 kB in leaving out invmod. */

3
wpa_supplicant/ChangeLog
View file

@ -11,6 +11,9 @@ ChangeLog for wpa_supplicant
* added support for parsing PKCS #8 formatted private keys into the
internal TLS implementation (both PKCS #1 RSA key and PKCS #8
encapsulated RSA key can now be used)
* added option of using faster, but larger, routines in the internal
LibTomMath (for internal TLS implementation) to speed up DH and RSA
calculations (CONFIG_INTERNAL_LIBTOMMATH_FAST=y)
2008-02-22 - v0.6.3
* removed 'nai' and 'eappsk' network configuration variables that were

10
wpa_supplicant/Makefile
View file

@ -621,14 +621,8 @@ CFLAGS += -DCONFIG_TLS_INTERNAL_CLIENT
ifeq ($(CONFIG_CRYPTO), internal)
ifdef CONFIG_INTERNAL_LIBTOMMATH
CFLAGS += -DCONFIG_INTERNAL_LIBTOMMATH
ifdef CONFIG_INTERNAL_LIBTOMMATH_FAST_EXPTMOD
CFLAGS += -DLTM_FAST_EXPTMOD
endif
ifdef CONFIG_INTERNAL_LIBTOMMATH_FAST_SQR
CFLAGS += -DLTM_FAST_SQR
endif
ifdef CONFIG_INTERNAL_LIBTOMMATH_FAST_DIV
CFLAGS += -DLTM_FAST_DIV
ifdef CONFIG_INTERNAL_LIBTOMMATH_FAST
CFLAGS += -DLTM_FAST
endif
else
LIBS += -ltommath

16
wpa_supplicant/defconfig
View file

@ -307,17 +307,11 @@ CONFIG_PEERKEY=y
#LIBS += -L$(LTM_PATH)
#LIBS_p += -L$(LTM_PATH)
#endif
# At the cost of about 2.5 kB of additional binarysize, the internal LibTomMath
# can be configured to include fast exptmod routine to speed up DH and RSA.
#CONFIG_INTERNAL_LIBTOMMATH_FAST_EXPTMOD=y
# At the cost of about 0.5 kB of additional binary size, the internal
# LibTomMath can be configured to include faster sqr routine to speed up DH and
# RSA.
#CONFIG_INTERNAL_LIBTOMMATH_FAST_SQR=y
# At the cost of about 1 kB of additional binary size, the internal
# LibTomMath can be configured to include faster div routine to speed up DH and
# RSA.
#CONFIG_INTERNAL_LIBTOMMATH_FAST_DIV=y
# At the cost of about 4 kB of additional binary size, the internal LibTomMath
# can be configured to include faster routines for exptmod, sqr, and div to
# speed up DH and RSA calculation considerably (around 20% time removed on
# Pentium 4)
#CONFIG_INTERNAL_LIBTOMMATH_FAST=y
# Include NDIS event processing through WMI into wpa_supplicant/wpasvc.
# This is only for Windows builds and requires WMI-related header files and