libtommath.c File Reference

Minimal code for RSA support from LibTomMath 0.41 http://libtom.org/ http://libtom.org/files/ltm-0.41.tar.bz2 This library was released in public domain by Tom St Denis. More...

Data Structures
struct	mp_int

Macros
#define	CHAR_BIT   8
#define	BN_MP_INVMOD_C
#define	BN_S_MP_EXPTMOD_C
#define	BN_S_MP_MUL_DIGS_C
#define	BN_MP_INVMOD_SLOW_C
#define	BN_S_MP_SQR_C
#define	BN_S_MP_MUL_HIGH_DIGS_C
#define	BN_MP_DIV_SMALL
#define	BN_MP_INIT_MULTI_C
#define	BN_MP_CLEAR_MULTI_C
#define	BN_MP_ABS_C
#define	LTM_NO_NEG_EXP
#define	MIN(x, y)   ((x)<(y)?(x):(y))
#define	MAX(x, y)   ((x)>(y)?(x):(y))
#define	OPT_CAST(x)
#define	DIGIT_BIT   28
#define	MP_28BIT
#define	XMALLOC   os_malloc
#define	XFREE   os_free
#define	XREALLOC   os_realloc
#define	MP_MASK   ((((mp_digit)1)<<((mp_digit)DIGIT_BIT))-((mp_digit)1))
#define	MP_LT   -1 /* less than */
#define	MP_EQ   0 /* equal to */
#define	MP_GT   1 /* greater than */
#define	MP_ZPOS   0 /* positive integer */
#define	MP_NEG   1 /* negative */
#define	MP_OKAY   0 /* ok result */
#define	MP_MEM   -2 /* out of mem */
#define	MP_VAL   -3 /* invalid input */
#define	MP_YES   1 /* yes response */
#define	MP_NO   0 /* no response */
#define	MP_LOW_MEM
#define	MP_PREC   8 /* default digits of precision */
#define	MP_WARRAY   (1 << (sizeof(mp_word) * CHAR_BIT - 2 * DIGIT_BIT + 1))
#define	mp_iszero(a)   (((a)->used == 0) ? MP_YES : MP_NO)
#define	mp_iseven(a)   (((a)->used > 0 && (((a)->dp[0] & 1) == 0)) ? MP_YES : MP_NO)
#define	mp_isodd(a)   (((a)->used > 0 && (((a)->dp[0] & 1) == 1)) ? MP_YES : MP_NO)
#define	s_mp_mul(a, b, c)   s_mp_mul_digs(a, b, c, (a)->used + (b)->used + 1)
#define	TAB_SIZE   32

Typedefs
typedef unsigned long	mp_digit
typedef u64	mp_word
typedef int	mp_err

Detailed Description

Minimal code for RSA support from LibTomMath 0.41 http://libtom.org/ http://libtom.org/files/ltm-0.41.tar.bz2 This library was released in public domain by Tom St Denis.

The combination in this file may not use all of the optimized algorithms from LibTomMath and may be considerable slower than the LibTomMath with its default settings. The main purpose of having this version here is to make it easier to build bignum.c wrapper without having to install and build an external library.

If CONFIG_INTERNAL_LIBTOMMATH is defined, bignum.c includes this libtommath.c file instead of using the external LibTomMath library.

Macro Definition Documentation

#define BN_S_MP_EXPTMOD_C

Value:

/* Note: #undef in tommath_superclass.h; this would
                           * require BN_MP_EXPTMOD_FAST_C instead */

#define BN_S_MP_MUL_HIGH_DIGS_C

Value:

/* Note: #undef in tommath_superclass.h; this
                                 * would require other than mp_reduce */