dropbear: src/headers/ltc_tommath.h annotate

annotate src/headers/ltc_tommath.h @ 196:704bb050935f libtomcrypt

makefile fixup for Dropbear

author	Matt Johnston <matt@ucc.asn.au>
date	Mon, 09 May 2005 12:00:08 +0000
parents	1c15b283127b
children	39d5d58461d6

rev	line source
191 1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /* LibTomMath, multiple-precision integer library -- Tom St Denis
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 * LibTomMath is a library that provides multiple-precision
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * integer arithmetic as well as number theoretic functionality.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 * The library was designed directly after the MPI library by
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * Michael Fromberger but has been written from scratch with
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 * additional optimizations in place.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 * The library is free for all purposes without any express
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 * guarantee it works.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 * Tom St Denis, [email protected], http://math.libtomcrypt.org
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 #ifndef BN_H_
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 #define BN_H_
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 #include <stdio.h>
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 #include <string.h>
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 #include <stdlib.h>
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 #include <ctype.h>
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 #include <limits.h>
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 #include <tommath_class.h>
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 #undef MIN
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 #define MIN(x,y) ((x)<(y)?(x):(y))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 #undef MAX
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #define MAX(x,y) ((x)>(y)?(x):(y))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 #ifdef __cplusplus
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 extern "C" {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 /* C++ compilers don't like assigning void * to mp_digit * */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 #define OPT_CAST(x) (x *)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 /* C on the other hand doesn't care */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 #define OPT_CAST(x)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 /* detect 64-bit mode if possible */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 #if defined(__x86_64__)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 #if !(defined(MP_64BIT) && defined(MP_16BIT) && defined(MP_8BIT))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 #define MP_64BIT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 /* some default configurations.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 * A "mp_digit" must be able to hold DIGIT_BIT + 1 bits
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 * A "mp_word" must be able to hold 2*DIGIT_BIT + 1 bits
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 * At the very least a mp_digit must be able to hold 7 bits
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 * [any size beyond that is ok provided it doesn't overflow the data type]
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 #ifdef MP_8BIT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 typedef unsigned char mp_digit;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 typedef unsigned short mp_word;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 #elif defined(MP_16BIT)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 typedef unsigned short mp_digit;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 typedef unsigned long mp_word;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 #elif defined(MP_64BIT)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 /* for GCC only on supported platforms */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68 #ifndef CRYPT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 typedef unsigned long long ulong64;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 typedef signed long long long64;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 typedef unsigned long mp_digit;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 typedef unsigned long mp_word __attribute__ ((mode(TI)));
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 #define DIGIT_BIT 60
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 /* this is the default case, 28-bit digits */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 /* this is to make porting into LibTomCrypt easier :-) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 #ifndef CRYPT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 #if defined(_MSC_VER) \|\| defined(__BORLANDC__)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 typedef unsigned __int64 ulong64;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 typedef signed __int64 long64;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 typedef unsigned long long ulong64;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 typedef signed long long long64;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 typedef unsigned long mp_digit;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 typedef ulong64 mp_word;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 #ifdef MP_31BIT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 /* this is an extension that uses 31-bit digits */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96 #define DIGIT_BIT 31
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 /* default case is 28-bit digits, defines MP_28BIT as a handy macro to test */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 #define DIGIT_BIT 28
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 #define MP_28BIT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 /* define heap macros */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 #ifndef CRYPT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 /* default to libc stuff */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 #ifndef XMALLOC
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 #define XMALLOC malloc
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 #define XFREE free
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110 #define XREALLOC realloc
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 #define XCALLOC calloc
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113 /* prototypes for our heap functions */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 extern void *XMALLOC(size_t n);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 extern void XREALLOC(void p, size_t n);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116 extern void *XCALLOC(size_t n, size_t s);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 extern void XFREE(void *p);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122 /* otherwise the bits per digit is calculated automatically from the size of a mp_digit */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 #ifndef DIGIT_BIT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 #define DIGIT_BIT ((int)((CHAR_BIT * sizeof(mp_digit) - 1))) /* bits per digit */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 #define MP_DIGIT_BIT DIGIT_BIT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 #define MP_MASK ((((mp_digit)1)<<((mp_digit)DIGIT_BIT))-((mp_digit)1))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 #define MP_DIGIT_MAX MP_MASK
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 /* equalities */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 #define MP_LT -1 /* less than */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 #define MP_EQ 0 /* equal to */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 #define MP_GT 1 /* greater than */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 #define MP_ZPOS 0 /* positive integer */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 #define MP_NEG 1 /* negative */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 #define MP_OKAY 0 /* ok result */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 #define MP_MEM -2 /* out of mem */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 #define MP_VAL -3 /* invalid input */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 #define MP_RANGE MP_VAL
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 #define MP_YES 1 /* yes response */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 #define MP_NO 0 /* no response */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 /* Primality generation flags */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 #define LTM_PRIME_BBS 0x0001 /* BBS style prime */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 #define LTM_PRIME_SAFE 0x0002 /* Safe prime (p-1)/2 == prime */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 #define LTM_PRIME_2MSB_ON 0x0008 /* force 2nd MSB to 1 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152 typedef int mp_err;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154 /* you'll have to tune these... */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 extern int KARATSUBA_MUL_CUTOFF,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 KARATSUBA_SQR_CUTOFF,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 TOOM_MUL_CUTOFF,
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 TOOM_SQR_CUTOFF;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160 /* define this to use lower memory usage routines (exptmods mostly) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 /* #define MP_LOW_MEM */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163 /* default precision */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 #ifndef MP_PREC
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 #ifndef MP_LOW_MEM
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166 #define MP_PREC 64 /* default digits of precision */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168 #define MP_PREC 8 /* default digits of precision */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 /* size of comba arrays, should be at least 2 * 2*(BITS_PER_WORD - BITS_PER_DIGIT2) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173 #define MP_WARRAY (1 << (sizeof(mp_word) * CHAR_BIT - 2 * DIGIT_BIT + 1))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 /* the infamous mp_int structure */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176 typedef struct {
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177 int used, alloc, sign;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178 mp_digit *dp;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 } mp_int;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 /* callback for mp_prime_random, should fill dst with random bytes and return how many read [upto len] */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 typedef int ltm_prime_callback(unsigned char dst, int len, void dat);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 #define USED(m) ((m)->used)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 #define DIGIT(m,k) ((m)->dp[(k)])
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 #define SIGN(m) ((m)->sign)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189 /* error code to char* string */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 char *mp_error_to_string(int code);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192 /* ---> init and deinit bignum functions <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 /* init a bignum */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 int mp_init(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 /* free a bignum */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 void mp_clear(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 /* init a null terminated series of arguments */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 int mp_init_multi(mp_int *mp, ...);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 /* clear a null terminated series of arguments */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 void mp_clear_multi(mp_int *mp, ...);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205 /* exchange two ints */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 void mp_exch(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208 /* shrink ram required for a bignum */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 int mp_shrink(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211 /* grow an int to a given size */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 int mp_grow(mp_int *a, int size);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 /* init to a given number of digits */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 int mp_init_size(mp_int *a, int size);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217 /* ---> Basic Manipulations <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218 #define mp_iszero(a) (((a)->used == 0) ? MP_YES : MP_NO)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 #define mp_iseven(a) (((a)->used > 0 && (((a)->dp[0] & 1) == 0)) ? MP_YES : MP_NO)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 #define mp_isodd(a) (((a)->used > 0 && (((a)->dp[0] & 1) == 1)) ? MP_YES : MP_NO)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222 /* set to zero */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 void mp_zero(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 /* set to a digit */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226 void mp_set(mp_int *a, mp_digit b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228 /* set a 32-bit const */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 int mp_set_int(mp_int *a, unsigned long b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 /* get a 32-bit value */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 unsigned long mp_get_int(mp_int * a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234 /* initialize and set a digit */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235 int mp_init_set (mp_int * a, mp_digit b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 /* initialize and set 32-bit value */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 int mp_init_set_int (mp_int * a, unsigned long b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 /* copy, b = a */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241 int mp_copy(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 /* inits and copies, a = b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 int mp_init_copy(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246 /* trim unused digits */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247 void mp_clamp(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	248
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249 /* ---> digit manipulation <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 /* right shift by "b" digits */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	252 void mp_rshd(mp_int *a, int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254 /* left shift by "b" digits */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255 int mp_lshd(mp_int *a, int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257 /* c = a / 2*b /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258 int mp_div_2d(mp_int a, int b, mp_int c, mp_int *d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	259
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	260 /* b = a/2 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	261 int mp_div_2(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	262
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263 /* c = a * 2*b /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264 int mp_mul_2d(mp_int a, int b, mp_int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266 /* b = a2 /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 int mp_mul_2(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269 /* c = a mod 2*d /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270 int mp_mod_2d(mp_int a, int b, mp_int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272 /* computes a = 2*b /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273 int mp_2expt(mp_int *a, int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 /* Counts the number of lsbs which are zero before the first zero bit */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276 int mp_cnt_lsb(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278 /* I Love Earth! */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 /* makes a pseudo-random int of a given size */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 int mp_rand(mp_int *a, int digits);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 /* ---> binary operations <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 /* c = a XOR b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 int mp_xor(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287 /* c = a OR b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288 int mp_or(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 /* c = a AND b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291 int mp_and(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293 /* ---> Basic arithmetic <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	295 /* b = -a */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296 int mp_neg(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298 /* b = \|a\| */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 int mp_abs(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301 /* compare a to b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302 int mp_cmp(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	304 /* compare \|a\| to \|b\| */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	305 int mp_cmp_mag(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	307 /* c = a + b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	308 int mp_add(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	309
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	310 /* c = a - b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	311 int mp_sub(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	312
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	313 /* c = a * b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314 int mp_mul(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	316 /* b = aa /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317 int mp_sqr(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	318
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319 /* a/b => cb + d == a */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320 int mp_div(mp_int a, mp_int b, mp_int c, mp_int d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	321
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322 /* c = a mod b, 0 <= c < b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	323 int mp_mod(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	324
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325 /* ---> single digit functions <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	327 /* compare against a single digit */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328 int mp_cmp_d(mp_int *a, mp_digit b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	330 /* c = a + b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	331 int mp_add_d(mp_int a, mp_digit b, mp_int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	332
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	333 /* c = a - b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	334 int mp_sub_d(mp_int a, mp_digit b, mp_int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	335
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	336 /* c = a * b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	337 int mp_mul_d(mp_int a, mp_digit b, mp_int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	338
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	339 /* a/b => cb + d == a */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	340 int mp_div_d(mp_int a, mp_digit b, mp_int c, mp_digit *d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	341
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	342 /* a/3 => 3c + d == a */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	343 int mp_div_3(mp_int a, mp_int c, mp_digit *d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	344
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	345 /* c = a*b /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	346 int mp_expt_d(mp_int a, mp_digit b, mp_int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	347
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	348 /* c = a mod b, 0 <= c < b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	349 int mp_mod_d(mp_int a, mp_digit b, mp_digit c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	350
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	351 /* ---> number theory <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	352
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	353 /* d = a + b (mod c) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	354 int mp_addmod(mp_int a, mp_int b, mp_int c, mp_int d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	355
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	356 /* d = a - b (mod c) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	357 int mp_submod(mp_int a, mp_int b, mp_int c, mp_int d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	358
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	359 /* d = a * b (mod c) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	360 int mp_mulmod(mp_int a, mp_int b, mp_int c, mp_int d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	361
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	362 /* c = a * a (mod b) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	363 int mp_sqrmod(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	364
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	365 /* c = 1/a (mod b) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	366 int mp_invmod(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	367
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	368 /* c = (a, b) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	369 int mp_gcd(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	370
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	371 /* produces value such that U1a + U2b = U3 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	372 int mp_exteuclid(mp_int a, mp_int b, mp_int U1, mp_int U2, mp_int *U3);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	373
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	374 /* c = [a, b] or (ab)/(a, b) /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	375 int mp_lcm(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	376
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	377 /* finds one of the b'th root of a, such that \|c\|**b <= \|a\|
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	378 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	379 * returns error if a < 0 and b is even
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	380 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	381 int mp_n_root(mp_int a, mp_digit b, mp_int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	382
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	383 /* special sqrt algo */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	384 int mp_sqrt(mp_int arg, mp_int ret);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	385
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	386 /* is number a square? */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	387 int mp_is_square(mp_int arg, int ret);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	388
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	389 /* computes the jacobi c = (a \| n) (or Legendre if b is prime) */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	390 int mp_jacobi(mp_int a, mp_int n, int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	391
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	392 /* used to setup the Barrett reduction for a given modulus b */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	393 int mp_reduce_setup(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	394
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	395 /* Barrett Reduction, computes a (mod b) with a precomputed value c
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	396 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	397 * Assumes that 0 < a <= bb, note if 0 > a > -(bb) then you can merely
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	398 * compute the reduction as -1 * mp_reduce(mp_abs(a)) [pseudo code].
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	399 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	400 int mp_reduce(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	401
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	402 /* setups the montgomery reduction */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	403 int mp_montgomery_setup(mp_int a, mp_digit mp);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	404
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	405 /* computes a = B**n mod b without division or multiplication useful for
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	406 * normalizing numbers in a Montgomery system.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	407 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	408 int mp_montgomery_calc_normalization(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	409
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	410 /* computes x/R == x (mod N) via Montgomery Reduction */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	411 int mp_montgomery_reduce(mp_int a, mp_int m, mp_digit mp);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	412
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	413 /* returns 1 if a is a valid DR modulus */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	414 int mp_dr_is_modulus(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	415
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	416 /* sets the value of "d" required for mp_dr_reduce */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	417 void mp_dr_setup(mp_int a, mp_digit d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	418
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	419 /* reduces a modulo b using the Diminished Radix method */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	420 int mp_dr_reduce(mp_int a, mp_int b, mp_digit mp);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	421
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	422 /* returns true if a can be reduced with mp_reduce_2k */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	423 int mp_reduce_is_2k(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	424
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	425 /* determines k value for 2k reduction */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	426 int mp_reduce_2k_setup(mp_int a, mp_digit d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	427
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	428 /* reduces a modulo b where b is of the form 2*p - k [0 <= a] /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	429 int mp_reduce_2k(mp_int a, mp_int n, mp_digit d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	430
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	431 /* returns true if a can be reduced with mp_reduce_2k_l */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	432 int mp_reduce_is_2k_l(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	433
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	434 /* determines k value for 2k reduction */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	435 int mp_reduce_2k_setup_l(mp_int a, mp_int d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	436
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	437 /* reduces a modulo b where b is of the form 2*p - k [0 <= a] /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	438 int mp_reduce_2k_l(mp_int a, mp_int n, mp_int *d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	439
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	440 /* d = a*b (mod c) /
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	441 int mp_exptmod(mp_int a, mp_int b, mp_int c, mp_int d);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	442
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	443 /* ---> Primes <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	444
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	445 /* number of primes */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	446 #ifdef MP_8BIT
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	447 #define PRIME_SIZE 31
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	448 #else
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	449 #define PRIME_SIZE 256
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	450 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	451
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	452 /* table of first PRIME_SIZE primes */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	453 extern const mp_digit ltm_prime_tab[];
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	454
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	455 /* result=1 if a is divisible by one of the first PRIME_SIZE primes */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	456 int mp_prime_is_divisible(mp_int a, int result);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	457
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	458 /* performs one Fermat test of "a" using base "b".
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	459 * Sets result to 0 if composite or 1 if probable prime
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	460 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	461 int mp_prime_fermat(mp_int a, mp_int b, int *result);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	462
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	463 /* performs one Miller-Rabin test of "a" using base "b".
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	464 * Sets result to 0 if composite or 1 if probable prime
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	465 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	466 int mp_prime_miller_rabin(mp_int a, mp_int b, int *result);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	467
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	468 /* This gives [for a given bit size] the number of trials required
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	469 * such that Miller-Rabin gives a prob of failure lower than 2^-96
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	470 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	471 int mp_prime_rabin_miller_trials(int size);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	472
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	473 /* performs t rounds of Miller-Rabin on "a" using the first
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	474 * t prime bases. Also performs an initial sieve of trial
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	475 * division. Determines if "a" is prime with probability
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	476 * of error no more than (1/4)**t.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	477 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	478 * Sets result to 1 if probably prime, 0 otherwise
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	479 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	480 int mp_prime_is_prime(mp_int a, int t, int result);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	481
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	482 /* finds the next prime after the number "a" using "t" trials
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	483 * of Miller-Rabin.
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	484 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	485 * bbs_style = 1 means the prime must be congruent to 3 mod 4
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	486 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	487 int mp_prime_next_prime(mp_int *a, int t, int bbs_style);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	488
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	489 /* makes a truly random prime of a given size (bytes),
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	490 * call with bbs = 1 if you want it to be congruent to 3 mod 4
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	491 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	492 * You have to supply a callback which fills in a buffer with random bytes. "dat" is a parameter you can
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	493 * have passed to the callback (e.g. a state or something). This function doesn't use "dat" itself
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	494 * so it can be NULL
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	495 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	496 * The prime generated will be larger than 2^(8*size).
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	497 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	498 #define mp_prime_random(a, t, size, bbs, cb, dat) mp_prime_random_ex(a, t, ((size) * 8) + 1, (bbs==1)?LTM_PRIME_BBS:0, cb, dat)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	499
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	500 /* makes a truly random prime of a given size (bits),
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	501 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	502 * Flags are as follows:
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	503 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	504 * LTM_PRIME_BBS - make prime congruent to 3 mod 4
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	505 * LTM_PRIME_SAFE - make sure (p-1)/2 is prime as well (implies LTM_PRIME_BBS)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	506 * LTM_PRIME_2MSB_OFF - make the 2nd highest bit zero
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	507 * LTM_PRIME_2MSB_ON - make the 2nd highest bit one
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	508 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	509 * You have to supply a callback which fills in a buffer with random bytes. "dat" is a parameter you can
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	510 * have passed to the callback (e.g. a state or something). This function doesn't use "dat" itself
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	511 * so it can be NULL
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	512 *
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	513 */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	514 int mp_prime_random_ex(mp_int a, int t, int size, int flags, ltm_prime_callback cb, void dat);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	515
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	516 /* ---> radix conversion <--- */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	517 int mp_count_bits(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	518
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	519 int mp_unsigned_bin_size(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	520 int mp_read_unsigned_bin(mp_int a, const unsigned char b, int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	521 int mp_to_unsigned_bin(mp_int a, unsigned char b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	522 int mp_to_unsigned_bin_n (mp_int * a, unsigned char b, unsigned long outlen);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	523
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	524 int mp_signed_bin_size(mp_int *a);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	525 int mp_read_signed_bin(mp_int a, const unsigned char b, int c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	526 int mp_to_signed_bin(mp_int a, unsigned char b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	527 int mp_to_signed_bin_n (mp_int * a, unsigned char b, unsigned long outlen);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	528
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	529 int mp_read_radix(mp_int a, const char str, int radix);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	530 int mp_toradix(mp_int a, char str, int radix);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	531 int mp_toradix_n(mp_int * a, char *str, int radix, int maxlen);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	532 int mp_radix_size(mp_int a, int radix, int size);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	533
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	534 int mp_fread(mp_int a, int radix, FILE stream);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	535 int mp_fwrite(mp_int a, int radix, FILE stream);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	536
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	537 #define mp_read_raw(mp, str, len) mp_read_signed_bin((mp), (str), (len))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	538 #define mp_raw_size(mp) mp_signed_bin_size(mp)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	539 #define mp_toraw(mp, str) mp_to_signed_bin((mp), (str))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	540 #define mp_read_mag(mp, str, len) mp_read_unsigned_bin((mp), (str), (len))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	541 #define mp_mag_size(mp) mp_unsigned_bin_size(mp)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	542 #define mp_tomag(mp, str) mp_to_unsigned_bin((mp), (str))
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	543
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	544 #define mp_tobinary(M, S) mp_toradix((M), (S), 2)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	545 #define mp_tooctal(M, S) mp_toradix((M), (S), 8)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	546 #define mp_todecimal(M, S) mp_toradix((M), (S), 10)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	547 #define mp_tohex(M, S) mp_toradix((M), (S), 16)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	548
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	549 /* lowlevel functions, do not call! */
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	550 int s_mp_add(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	551 int s_mp_sub(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	552 #define s_mp_mul(a, b, c) s_mp_mul_digs(a, b, c, (a)->used + (b)->used + 1)
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	553 int fast_s_mp_mul_digs(mp_int a, mp_int b, mp_int *c, int digs);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	554 int s_mp_mul_digs(mp_int a, mp_int b, mp_int *c, int digs);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	555 int fast_s_mp_mul_high_digs(mp_int a, mp_int b, mp_int *c, int digs);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	556 int s_mp_mul_high_digs(mp_int a, mp_int b, mp_int *c, int digs);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	557 int fast_s_mp_sqr(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	558 int s_mp_sqr(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	559 int mp_karatsuba_mul(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	560 int mp_toom_mul(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	561 int mp_karatsuba_sqr(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	562 int mp_toom_sqr(mp_int a, mp_int b);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	563 int fast_mp_invmod(mp_int a, mp_int b, mp_int *c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	564 int mp_invmod_slow (mp_int * a, mp_int * b, mp_int * c);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	565 int fast_mp_montgomery_reduce(mp_int a, mp_int m, mp_digit mp);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	566 int mp_exptmod_fast(mp_int G, mp_int X, mp_int P, mp_int Y, int mode);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	567 int s_mp_exptmod (mp_int * G, mp_int * X, mp_int * P, mp_int * Y, int mode);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	568 void bn_reverse(unsigned char *s, int len);
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	569
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	570 extern const char *mp_s_rmap;
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	571
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	572 #ifdef __cplusplus
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	573 }
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	574 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	575
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	576 #endif
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc Matt Johnston <matt@ucc.asn.au> parents: diff changeset	577

Mercurial > dropbear

annotate src/headers/ltc_tommath.h @ 196:704bb050935f libtomcrypt