Mercurial > dropbear
annotate libtommath/tommath.h @ 1653:76189c9ffea2
External Public-Key Authentication API (#72)
* Implemented dynamic loading of an external plug-in shared library to delegate public key authentication
* Moved conditional compilation of the plugin infrastructure into the configure.ac script to be able to add -ldl to dropbear build only when the flag is enabled
* Added tags file to the ignore list
* Updated API to have the constructor to return function pointers in the pliugin instance. Added support for passing user name to the checkpubkey function. Added options to the session returned by the plugin and have dropbear to parse and process them
* Added -rdynamic to the linker flags when EPKA is enabled
* Changed the API to pass a previously created session to the checkPubKey function (created during preauth)
* Added documentation to the API
* Added parameter addrstring to plugin creation function
* Modified the API to retrieve the auth options. Instead of having them as field of the EPKASession struct, they are stored internally (plugin-dependent) in the plugin/session and retrieved through a pointer to a function (in the session)
* Changed option string to be a simple char * instead of unsigned char *
author | fabriziobertocci <fabriziobertocci@gmail.com> |
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date | Wed, 15 May 2019 09:43:57 -0400 |
parents | 8bba51a55704 |
children | f52919ffd3b1 |
rev | line source |
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1 /* LibTomMath, multiple-precision integer library -- Tom St Denis |
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2 * |
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3 * LibTomMath is a library that provides multiple-precision |
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4 * integer arithmetic as well as number theoretic functionality. |
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5 * |
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6 * The library was designed directly after the MPI library by |
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7 * Michael Fromberger but has been written from scratch with |
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8 * additional optimizations in place. |
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9 * |
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10 * The library is free for all purposes without any express |
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11 * guarantee it works. |
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12 * |
1436 | 13 * Tom St Denis, [email protected], http://math.libtomcrypt.com |
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14 */ |
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15 #ifndef BN_H_ |
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16 #define BN_H_ |
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17 |
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18 #include <stdio.h> |
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19 #include <stdlib.h> |
1436 | 20 #include <stdint.h> |
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21 #include <limits.h> |
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22 |
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23 #include "tommath_class.h" |
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24 |
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25 #ifdef __cplusplus |
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26 extern "C" { |
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27 #endif |
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28 |
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29 /* detect 64-bit mode if possible */ |
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30 #if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64) || \ |
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31 defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) || \ |
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32 defined(__s390x__) || defined(__arch64__) || defined(__aarch64__) || \ |
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33 defined(__sparcv9) || defined(__sparc_v9__) || defined(__sparc64__) || \ |
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34 defined(__ia64) || defined(__ia64__) || defined(__itanium__) || defined(_M_IA64) || \ |
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35 defined(__LP64__) || defined(_LP64) || defined(__64BIT__) |
1436 | 36 #if !(defined(MP_32BIT) || defined(MP_16BIT) || defined(MP_8BIT)) |
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37 #define MP_64BIT |
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38 #endif |
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39 #endif |
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40 |
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41 /* some default configurations. |
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42 * |
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43 * A "mp_digit" must be able to hold DIGIT_BIT + 1 bits |
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44 * A "mp_word" must be able to hold 2*DIGIT_BIT + 1 bits |
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45 * |
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46 * At the very least a mp_digit must be able to hold 7 bits |
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47 * [any size beyond that is ok provided it doesn't overflow the data type] |
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48 */ |
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49 #ifdef MP_8BIT |
1436 | 50 typedef uint8_t mp_digit; |
51 typedef uint16_t mp_word; | |
52 #define MP_SIZEOF_MP_DIGIT 1 | |
53 #ifdef DIGIT_BIT | |
54 #error You must not define DIGIT_BIT when using MP_8BIT | |
55 #endif | |
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56 #elif defined(MP_16BIT) |
1436 | 57 typedef uint16_t mp_digit; |
58 typedef uint32_t mp_word; | |
59 #define MP_SIZEOF_MP_DIGIT 2 | |
60 #ifdef DIGIT_BIT | |
61 #error You must not define DIGIT_BIT when using MP_16BIT | |
62 #endif | |
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63 #elif defined(MP_64BIT) |
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64 /* for GCC only on supported platforms */ |
1436 | 65 typedef uint64_t mp_digit; |
66 #if defined(_WIN32) | |
67 typedef unsigned __int128 mp_word; | |
68 #elif defined(__GNUC__) | |
69 typedef unsigned long mp_word __attribute__ ((mode(TI))); | |
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70 #else |
1436 | 71 /* it seems you have a problem |
72 * but we assume you can somewhere define your own uint128_t */ | |
73 typedef uint128_t mp_word; | |
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74 #endif |
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75 |
1436 | 76 #define DIGIT_BIT 60 |
77 #else | |
78 /* this is the default case, 28-bit digits */ | |
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79 |
1436 | 80 /* this is to make porting into LibTomCrypt easier :-) */ |
81 typedef uint32_t mp_digit; | |
82 typedef uint64_t mp_word; | |
83 | |
84 #ifdef MP_31BIT | |
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85 /* this is an extension that uses 31-bit digits */ |
1436 | 86 #define DIGIT_BIT 31 |
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87 #else |
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88 /* default case is 28-bit digits, defines MP_28BIT as a handy macro to test */ |
1436 | 89 #define DIGIT_BIT 28 |
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90 #define MP_28BIT |
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91 #endif |
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92 #endif |
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93 |
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94 /* otherwise the bits per digit is calculated automatically from the size of a mp_digit */ |
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95 #ifndef DIGIT_BIT |
1436 | 96 #define DIGIT_BIT (((CHAR_BIT * MP_SIZEOF_MP_DIGIT) - 1)) /* bits per digit */ |
97 typedef uint_least32_t mp_min_u32; | |
98 #else | |
99 typedef mp_digit mp_min_u32; | |
100 #endif | |
101 | |
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102 /* use arc4random on platforms that support it */ |
1436 | 103 #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) |
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104 #define MP_GEN_RANDOM() arc4random() |
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105 #define MP_GEN_RANDOM_MAX 0xffffffff |
1436 | 106 #endif |
107 | |
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108 /* use rand() as fall-back if there's no better rand function */ |
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109 #ifndef MP_GEN_RANDOM |
1436 | 110 #define MP_GEN_RANDOM() rand() |
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111 #define MP_GEN_RANDOM_MAX RAND_MAX |
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112 #endif |
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113 |
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114 #define MP_DIGIT_BIT DIGIT_BIT |
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115 #define MP_MASK ((((mp_digit)1)<<((mp_digit)DIGIT_BIT))-((mp_digit)1)) |
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116 #define MP_DIGIT_MAX MP_MASK |
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117 |
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118 /* equalities */ |
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119 #define MP_LT -1 /* less than */ |
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120 #define MP_EQ 0 /* equal to */ |
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121 #define MP_GT 1 /* greater than */ |
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122 |
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123 #define MP_ZPOS 0 /* positive integer */ |
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124 #define MP_NEG 1 /* negative */ |
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125 |
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126 #define MP_OKAY 0 /* ok result */ |
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127 #define MP_MEM -2 /* out of mem */ |
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128 #define MP_VAL -3 /* invalid input */ |
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129 #define MP_RANGE MP_VAL |
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130 |
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131 #define MP_YES 1 /* yes response */ |
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132 #define MP_NO 0 /* no response */ |
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133 |
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134 /* Primality generation flags */ |
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135 #define LTM_PRIME_BBS 0x0001 /* BBS style prime */ |
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136 #define LTM_PRIME_SAFE 0x0002 /* Safe prime (p-1)/2 == prime */ |
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137 #define LTM_PRIME_2MSB_ON 0x0008 /* force 2nd MSB to 1 */ |
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138 |
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139 typedef int mp_err; |
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140 |
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141 /* you'll have to tune these... */ |
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142 extern int KARATSUBA_MUL_CUTOFF, |
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143 KARATSUBA_SQR_CUTOFF, |
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144 TOOM_MUL_CUTOFF, |
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145 TOOM_SQR_CUTOFF; |
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146 |
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147 /* define this to use lower memory usage routines (exptmods mostly) */ |
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148 /* #define MP_LOW_MEM */ |
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149 |
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150 /* default precision */ |
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151 #ifndef MP_PREC |
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152 #ifndef MP_LOW_MEM |
389
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153 #define MP_PREC 32 /* default digits of precision */ |
284
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154 #else |
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155 #define MP_PREC 8 /* default digits of precision */ |
1436 | 156 #endif |
284
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157 #endif |
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158 |
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159 /* size of comba arrays, should be at least 2 * 2**(BITS_PER_WORD - BITS_PER_DIGIT*2) */ |
1436 | 160 #define MP_WARRAY (1 << (((sizeof(mp_word) * CHAR_BIT) - (2 * DIGIT_BIT)) + 1)) |
284
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161 |
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162 /* the infamous mp_int structure */ |
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163 typedef struct { |
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164 int used, alloc, sign; |
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165 mp_digit *dp; |
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166 } mp_int; |
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167 |
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168 /* callback for mp_prime_random, should fill dst with random bytes and return how many read [upto len] */ |
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169 typedef int ltm_prime_callback(unsigned char *dst, int len, void *dat); |
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170 |
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171 |
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172 #define USED(m) ((m)->used) |
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173 #define DIGIT(m,k) ((m)->dp[(k)]) |
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174 #define SIGN(m) ((m)->sign) |
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175 |
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176 /* error code to char* string */ |
1436 | 177 const char *mp_error_to_string(int code); |
284
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178 |
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179 /* ---> init and deinit bignum functions <--- */ |
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180 /* init a bignum */ |
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181 int mp_init(mp_int *a); |
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182 |
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183 /* free a bignum */ |
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184 void mp_clear(mp_int *a); |
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185 |
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186 /* init a null terminated series of arguments */ |
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187 int mp_init_multi(mp_int *mp, ...); |
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188 |
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189 /* clear a null terminated series of arguments */ |
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190 void mp_clear_multi(mp_int *mp, ...); |
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191 |
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192 /* exchange two ints */ |
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193 void mp_exch(mp_int *a, mp_int *b); |
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194 |
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195 /* shrink ram required for a bignum */ |
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196 int mp_shrink(mp_int *a); |
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197 |
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198 /* grow an int to a given size */ |
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199 int mp_grow(mp_int *a, int size); |
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200 |
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201 /* init to a given number of digits */ |
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202 int mp_init_size(mp_int *a, int size); |
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203 |
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204 /* ---> Basic Manipulations <--- */ |
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205 #define mp_iszero(a) (((a)->used == 0) ? MP_YES : MP_NO) |
1436 | 206 #define mp_iseven(a) ((((a)->used > 0) && (((a)->dp[0] & 1u) == 0u)) ? MP_YES : MP_NO) |
207 #define mp_isodd(a) ((((a)->used > 0) && (((a)->dp[0] & 1u) == 1u)) ? MP_YES : MP_NO) | |
208 #define mp_isneg(a) (((a)->sign != MP_ZPOS) ? MP_YES : MP_NO) | |
284
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209 |
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210 /* set to zero */ |
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211 void mp_zero(mp_int *a); |
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212 |
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213 /* set to a digit */ |
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214 void mp_set(mp_int *a, mp_digit b); |
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215 |
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216 /* set a 32-bit const */ |
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217 int mp_set_int(mp_int *a, unsigned long b); |
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218 |
1436 | 219 /* set a platform dependent unsigned long value */ |
220 int mp_set_long(mp_int *a, unsigned long b); | |
221 | |
222 /* set a platform dependent unsigned long long value */ | |
223 int mp_set_long_long(mp_int *a, unsigned long long b); | |
224 | |
284
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225 /* get a 32-bit value */ |
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226 unsigned long mp_get_int(mp_int * a); |
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227 |
1436 | 228 /* get a platform dependent unsigned long value */ |
229 unsigned long mp_get_long(mp_int * a); | |
230 | |
231 /* get a platform dependent unsigned long long value */ | |
232 unsigned long long mp_get_long_long(mp_int * a); | |
233 | |
284
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234 /* initialize and set a digit */ |
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235 int mp_init_set (mp_int * a, mp_digit b); |
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236 |
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237 /* initialize and set 32-bit value */ |
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238 int mp_init_set_int (mp_int * a, unsigned long b); |
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239 |
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240 /* copy, b = a */ |
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241 int mp_copy(mp_int *a, mp_int *b); |
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242 |
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243 /* inits and copies, a = b */ |
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244 int mp_init_copy(mp_int *a, mp_int *b); |
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245 |
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246 /* trim unused digits */ |
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247 void mp_clamp(mp_int *a); |
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248 |
1436 | 249 /* import binary data */ |
250 int mp_import(mp_int* rop, size_t count, int order, size_t size, int endian, size_t nails, const void* op); | |
251 | |
252 /* export binary data */ | |
253 int mp_export(void* rop, size_t* countp, int order, size_t size, int endian, size_t nails, mp_int* op); | |
254 | |
284
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255 /* ---> digit manipulation <--- */ |
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256 |
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257 /* right shift by "b" digits */ |
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258 void mp_rshd(mp_int *a, int b); |
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259 |
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260 /* left shift by "b" digits */ |
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261 int mp_lshd(mp_int *a, int b); |
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262 |
1436 | 263 /* c = a / 2**b, implemented as c = a >> b */ |
284
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264 int mp_div_2d(mp_int *a, int b, mp_int *c, mp_int *d); |
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265 |
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266 /* b = a/2 */ |
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267 int mp_div_2(mp_int *a, mp_int *b); |
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268 |
1436 | 269 /* c = a * 2**b, implemented as c = a << b */ |
284
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270 int mp_mul_2d(mp_int *a, int b, mp_int *c); |
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271 |
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272 /* b = a*2 */ |
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273 int mp_mul_2(mp_int *a, mp_int *b); |
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274 |
1436 | 275 /* c = a mod 2**b */ |
284
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276 int mp_mod_2d(mp_int *a, int b, mp_int *c); |
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277 |
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278 /* computes a = 2**b */ |
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279 int mp_2expt(mp_int *a, int b); |
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280 |
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281 /* Counts the number of lsbs which are zero before the first zero bit */ |
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282 int mp_cnt_lsb(mp_int *a); |
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283 |
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284 /* I Love Earth! */ |
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285 |
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286 /* makes a pseudo-random int of a given size */ |
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287 int mp_rand(mp_int *a, int digits); |
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288 |
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289 /* ---> binary operations <--- */ |
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290 /* c = a XOR b */ |
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291 int mp_xor(mp_int *a, mp_int *b, mp_int *c); |
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292 |
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293 /* c = a OR b */ |
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294 int mp_or(mp_int *a, mp_int *b, mp_int *c); |
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295 |
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296 /* c = a AND b */ |
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297 int mp_and(mp_int *a, mp_int *b, mp_int *c); |
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298 |
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299 /* ---> Basic arithmetic <--- */ |
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300 |
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301 /* b = -a */ |
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302 int mp_neg(mp_int *a, mp_int *b); |
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303 |
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304 /* b = |a| */ |
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305 int mp_abs(mp_int *a, mp_int *b); |
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306 |
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307 /* compare a to b */ |
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308 int mp_cmp(mp_int *a, mp_int *b); |
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309 |
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310 /* compare |a| to |b| */ |
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311 int mp_cmp_mag(mp_int *a, mp_int *b); |
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312 |
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313 /* c = a + b */ |
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314 int mp_add(mp_int *a, mp_int *b, mp_int *c); |
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315 |
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316 /* c = a - b */ |
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317 int mp_sub(mp_int *a, mp_int *b, mp_int *c); |
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318 |
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319 /* c = a * b */ |
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320 int mp_mul(mp_int *a, mp_int *b, mp_int *c); |
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321 |
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322 /* b = a*a */ |
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323 int mp_sqr(mp_int *a, mp_int *b); |
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324 |
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325 /* a/b => cb + d == a */ |
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326 int mp_div(mp_int *a, mp_int *b, mp_int *c, mp_int *d); |
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327 |
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328 /* c = a mod b, 0 <= c < b */ |
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329 int mp_mod(mp_int *a, mp_int *b, mp_int *c); |
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330 |
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331 /* ---> single digit functions <--- */ |
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332 |
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333 /* compare against a single digit */ |
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334 int mp_cmp_d(mp_int *a, mp_digit b); |
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335 |
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336 /* c = a + b */ |
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337 int mp_add_d(mp_int *a, mp_digit b, mp_int *c); |
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338 |
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339 /* c = a - b */ |
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340 int mp_sub_d(mp_int *a, mp_digit b, mp_int *c); |
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341 |
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342 /* c = a * b */ |
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343 int mp_mul_d(mp_int *a, mp_digit b, mp_int *c); |
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344 |
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345 /* a/b => cb + d == a */ |
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346 int mp_div_d(mp_int *a, mp_digit b, mp_int *c, mp_digit *d); |
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347 |
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348 /* a/3 => 3c + d == a */ |
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349 int mp_div_3(mp_int *a, mp_int *c, mp_digit *d); |
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350 |
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351 /* c = a**b */ |
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352 int mp_expt_d(mp_int *a, mp_digit b, mp_int *c); |
1436 | 353 int mp_expt_d_ex (mp_int * a, mp_digit b, mp_int * c, int fast); |
284
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354 |
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355 /* c = a mod b, 0 <= c < b */ |
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356 int mp_mod_d(mp_int *a, mp_digit b, mp_digit *c); |
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357 |
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358 /* ---> number theory <--- */ |
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359 |
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360 /* d = a + b (mod c) */ |
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361 int mp_addmod(mp_int *a, mp_int *b, mp_int *c, mp_int *d); |
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362 |
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363 /* d = a - b (mod c) */ |
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364 int mp_submod(mp_int *a, mp_int *b, mp_int *c, mp_int *d); |
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365 |
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366 /* d = a * b (mod c) */ |
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367 int mp_mulmod(mp_int *a, mp_int *b, mp_int *c, mp_int *d); |
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368 |
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369 /* c = a * a (mod b) */ |
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370 int mp_sqrmod(mp_int *a, mp_int *b, mp_int *c); |
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371 |
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372 /* c = 1/a (mod b) */ |
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373 int mp_invmod(mp_int *a, mp_int *b, mp_int *c); |
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374 |
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375 /* c = (a, b) */ |
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376 int mp_gcd(mp_int *a, mp_int *b, mp_int *c); |
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377 |
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378 /* produces value such that U1*a + U2*b = U3 */ |
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379 int mp_exteuclid(mp_int *a, mp_int *b, mp_int *U1, mp_int *U2, mp_int *U3); |
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380 |
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381 /* c = [a, b] or (a*b)/(a, b) */ |
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382 int mp_lcm(mp_int *a, mp_int *b, mp_int *c); |
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383 |
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384 /* finds one of the b'th root of a, such that |c|**b <= |a| |
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385 * |
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386 * returns error if a < 0 and b is even |
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387 */ |
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388 int mp_n_root(mp_int *a, mp_digit b, mp_int *c); |
1436 | 389 int mp_n_root_ex (mp_int * a, mp_digit b, mp_int * c, int fast); |
284
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390 |
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391 /* special sqrt algo */ |
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392 int mp_sqrt(mp_int *arg, mp_int *ret); |
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393 |
1436 | 394 /* special sqrt (mod prime) */ |
395 int mp_sqrtmod_prime(mp_int *arg, mp_int *prime, mp_int *ret); | |
396 | |
284
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397 /* is number a square? */ |
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398 int mp_is_square(mp_int *arg, int *ret); |
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399 |
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400 /* computes the jacobi c = (a | n) (or Legendre if b is prime) */ |
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401 int mp_jacobi(mp_int *a, mp_int *n, int *c); |
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402 |
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403 /* used to setup the Barrett reduction for a given modulus b */ |
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404 int mp_reduce_setup(mp_int *a, mp_int *b); |
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405 |
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406 /* Barrett Reduction, computes a (mod b) with a precomputed value c |
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407 * |
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408 * Assumes that 0 < a <= b*b, note if 0 > a > -(b*b) then you can merely |
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409 * compute the reduction as -1 * mp_reduce(mp_abs(a)) [pseudo code]. |
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410 */ |
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411 int mp_reduce(mp_int *a, mp_int *b, mp_int *c); |
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412 |
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413 /* setups the montgomery reduction */ |
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414 int mp_montgomery_setup(mp_int *a, mp_digit *mp); |
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415 |
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416 /* computes a = B**n mod b without division or multiplication useful for |
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417 * normalizing numbers in a Montgomery system. |
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418 */ |
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419 int mp_montgomery_calc_normalization(mp_int *a, mp_int *b); |
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420 |
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421 /* computes x/R == x (mod N) via Montgomery Reduction */ |
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422 int mp_montgomery_reduce(mp_int *a, mp_int *m, mp_digit mp); |
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423 |
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424 /* returns 1 if a is a valid DR modulus */ |
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425 int mp_dr_is_modulus(mp_int *a); |
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426 |
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427 /* sets the value of "d" required for mp_dr_reduce */ |
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428 void mp_dr_setup(mp_int *a, mp_digit *d); |
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429 |
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430 /* reduces a modulo b using the Diminished Radix method */ |
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431 int mp_dr_reduce(mp_int *a, mp_int *b, mp_digit mp); |
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432 |
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433 /* returns true if a can be reduced with mp_reduce_2k */ |
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434 int mp_reduce_is_2k(mp_int *a); |
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435 |
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436 /* determines k value for 2k reduction */ |
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437 int mp_reduce_2k_setup(mp_int *a, mp_digit *d); |
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438 |
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439 /* reduces a modulo b where b is of the form 2**p - k [0 <= a] */ |
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440 int mp_reduce_2k(mp_int *a, mp_int *n, mp_digit d); |
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441 |
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442 /* returns true if a can be reduced with mp_reduce_2k_l */ |
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443 int mp_reduce_is_2k_l(mp_int *a); |
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444 |
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445 /* determines k value for 2k reduction */ |
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446 int mp_reduce_2k_setup_l(mp_int *a, mp_int *d); |
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447 |
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448 /* reduces a modulo b where b is of the form 2**p - k [0 <= a] */ |
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449 int mp_reduce_2k_l(mp_int *a, mp_int *n, mp_int *d); |
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450 |
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451 /* d = a**b (mod c) */ |
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452 int mp_exptmod(mp_int *a, mp_int *b, mp_int *c, mp_int *d); |
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453 |
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454 /* ---> Primes <--- */ |
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455 |
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456 /* number of primes */ |
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457 #ifdef MP_8BIT |
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458 #define PRIME_SIZE 31 |
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459 #else |
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460 #define PRIME_SIZE 256 |
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461 #endif |
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462 |
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463 /* table of first PRIME_SIZE primes */ |
1436 | 464 extern const mp_digit ltm_prime_tab[PRIME_SIZE]; |
284
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465 |
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466 /* result=1 if a is divisible by one of the first PRIME_SIZE primes */ |
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467 int mp_prime_is_divisible(mp_int *a, int *result); |
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468 |
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469 /* performs one Fermat test of "a" using base "b". |
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470 * Sets result to 0 if composite or 1 if probable prime |
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471 */ |
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472 int mp_prime_fermat(mp_int *a, mp_int *b, int *result); |
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473 |
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474 /* performs one Miller-Rabin test of "a" using base "b". |
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475 * Sets result to 0 if composite or 1 if probable prime |
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476 */ |
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477 int mp_prime_miller_rabin(mp_int *a, mp_int *b, int *result); |
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478 |
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479 /* This gives [for a given bit size] the number of trials required |
1436 | 480 * such that Miller-Rabin gives a prob of failure lower than 2^-96 |
284
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481 */ |
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482 int mp_prime_rabin_miller_trials(int size); |
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483 |
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484 /* performs t rounds of Miller-Rabin on "a" using the first |
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485 * t prime bases. Also performs an initial sieve of trial |
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486 * division. Determines if "a" is prime with probability |
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487 * of error no more than (1/4)**t. |
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488 * |
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489 * Sets result to 1 if probably prime, 0 otherwise |
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490 */ |
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491 int mp_prime_is_prime(mp_int *a, int t, int *result); |
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492 |
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493 /* finds the next prime after the number "a" using "t" trials |
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494 * of Miller-Rabin. |
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495 * |
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496 * bbs_style = 1 means the prime must be congruent to 3 mod 4 |
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497 */ |
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498 int mp_prime_next_prime(mp_int *a, int t, int bbs_style); |
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499 |
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500 /* makes a truly random prime of a given size (bytes), |
1436 | 501 * call with bbs = 1 if you want it to be congruent to 3 mod 4 |
284
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502 * |
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503 * You have to supply a callback which fills in a buffer with random bytes. "dat" is a parameter you can |
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504 * have passed to the callback (e.g. a state or something). This function doesn't use "dat" itself |
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505 * so it can be NULL |
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506 * |
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507 * The prime generated will be larger than 2^(8*size). |
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508 */ |
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509 #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) |
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510 |
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511 /* makes a truly random prime of a given size (bits), |
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512 * |
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513 * Flags are as follows: |
1436 | 514 * |
284
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515 * LTM_PRIME_BBS - make prime congruent to 3 mod 4 |
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516 * LTM_PRIME_SAFE - make sure (p-1)/2 is prime as well (implies LTM_PRIME_BBS) |
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517 * LTM_PRIME_2MSB_ON - make the 2nd highest bit one |
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518 * |
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519 * You have to supply a callback which fills in a buffer with random bytes. "dat" is a parameter you can |
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520 * have passed to the callback (e.g. a state or something). This function doesn't use "dat" itself |
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521 * so it can be NULL |
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522 * |
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523 */ |
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524 int mp_prime_random_ex(mp_int *a, int t, int size, int flags, ltm_prime_callback cb, void *dat); |
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525 |
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526 /* ---> radix conversion <--- */ |
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527 int mp_count_bits(mp_int *a); |
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528 |
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529 int mp_unsigned_bin_size(mp_int *a); |
389
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530 int mp_read_unsigned_bin(mp_int *a, const unsigned char *b, int c); |
284
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531 int mp_to_unsigned_bin(mp_int *a, unsigned char *b); |
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532 int mp_to_unsigned_bin_n (mp_int * a, unsigned char *b, unsigned long *outlen); |
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533 |
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534 int mp_signed_bin_size(mp_int *a); |
389
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535 int mp_read_signed_bin(mp_int *a, const unsigned char *b, int c); |
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536 int mp_to_signed_bin(mp_int *a, unsigned char *b); |
284
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537 int mp_to_signed_bin_n (mp_int * a, unsigned char *b, unsigned long *outlen); |
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538 |
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539 int mp_read_radix(mp_int *a, const char *str, int radix); |
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540 int mp_toradix(mp_int *a, char *str, int radix); |
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541 int mp_toradix_n(mp_int * a, char *str, int radix, int maxlen); |
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542 int mp_radix_size(mp_int *a, int radix, int *size); |
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543 |
1436 | 544 #ifndef LTM_NO_FILE |
284
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545 int mp_fread(mp_int *a, int radix, FILE *stream); |
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546 int mp_fwrite(mp_int *a, int radix, FILE *stream); |
1436 | 547 #endif |
284
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548 |
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549 #define mp_read_raw(mp, str, len) mp_read_signed_bin((mp), (str), (len)) |
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550 #define mp_raw_size(mp) mp_signed_bin_size(mp) |
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551 #define mp_toraw(mp, str) mp_to_signed_bin((mp), (str)) |
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552 #define mp_read_mag(mp, str, len) mp_read_unsigned_bin((mp), (str), (len)) |
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553 #define mp_mag_size(mp) mp_unsigned_bin_size(mp) |
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554 #define mp_tomag(mp, str) mp_to_unsigned_bin((mp), (str)) |
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555 |
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556 #define mp_tobinary(M, S) mp_toradix((M), (S), 2) |
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557 #define mp_tooctal(M, S) mp_toradix((M), (S), 8) |
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558 #define mp_todecimal(M, S) mp_toradix((M), (S), 10) |
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559 #define mp_tohex(M, S) mp_toradix((M), (S), 16) |
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560 |
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561 #ifdef __cplusplus |
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562 } |
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563 #endif |
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564 |
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565 #endif |
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566 |
389
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567 |
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568 /* ref: $Format:%D$ */ |
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569 /* git commit: $Format:%H$ */ |
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570 /* commit time: $Format:%ai$ */ |