diff options
Diffstat (limited to 'libtommath/tommath.h')
| -rw-r--r-- | libtommath/tommath.h | 373 |
1 files changed, 182 insertions, 191 deletions
diff --git a/libtommath/tommath.h b/libtommath/tommath.h index cb3435f..dee7ab5 100644 --- a/libtommath/tommath.h +++ b/libtommath/tommath.h @@ -10,45 +10,31 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com + * Tom St Denis, tstdenis82@gmail.com, http://math.libtomcrypt.com */ #ifndef BN_H_ #define BN_H_ #include <stdio.h> -#include <string.h> #include <stdlib.h> -#include <ctype.h> +#include <stdint.h> #include <limits.h> #include <tommath_class.h> -#ifndef MIN -# define MIN(x,y) ((x)<(y)?(x):(y)) -#endif - -#ifndef MAX -# define MAX(x,y) ((x)>(y)?(x):(y)) -#endif - #ifdef __cplusplus extern "C" { - -/* C++ compilers don't like assigning void * to mp_digit * */ -#define OPT_CAST(x) (x *) - -#else - -/* C on the other hand doesn't care */ -#define OPT_CAST(x) - #endif - /* detect 64-bit mode if possible */ -#if defined(__x86_64__) -# if !(defined(MP_64BIT) && defined(MP_16BIT) && defined(MP_8BIT)) -# define MP_64BIT +#if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64) || \ + defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) || \ + defined(__s390x__) || defined(__arch64__) || defined(__aarch64__) || \ + defined(__sparcv9) || defined(__sparc_v9__) || defined(__sparc64__) || \ + defined(__ia64) || defined(__ia64__) || defined(__itanium__) || defined(_M_IA64) || \ + defined(__LP64__) || defined(_LP64) || defined(__64BIT__) +# if !(defined(MP_32BIT) || defined(MP_16BIT) || defined(MP_8BIT)) +# define MP_64BIT # endif #endif @@ -61,70 +47,68 @@ extern "C" { * [any size beyond that is ok provided it doesn't overflow the data type] */ #ifdef MP_8BIT - typedef unsigned char mp_digit; - typedef unsigned short mp_word; +typedef uint8_t mp_digit; +typedef uint16_t mp_word; +# define MP_SIZEOF_MP_DIGIT 1 +# ifdef DIGIT_BIT +# error You must not define DIGIT_BIT when using MP_8BIT +# endif #elif defined(MP_16BIT) - typedef unsigned short mp_digit; - typedef unsigned long mp_word; +typedef uint16_t mp_digit; +typedef uint32_t mp_word; +# define MP_SIZEOF_MP_DIGIT 2 +# ifdef DIGIT_BIT +# error You must not define DIGIT_BIT when using MP_16BIT +# endif #elif defined(MP_64BIT) - /* for GCC only on supported platforms */ -#ifndef CRYPT - typedef unsigned long long ulong64; - typedef signed long long long64; -#endif - - typedef unsigned long mp_digit; - typedef unsigned long mp_word __attribute__ ((mode(TI))); +/* for GCC only on supported platforms */ +typedef uint64_t mp_digit; +# if defined(_WIN32) +typedef unsigned __int128 mp_word; +# elif defined(__GNUC__) +typedef unsigned long mp_word __attribute__((mode(TI))); +# else +/* it seems you have a problem + * but we assume you can somewhere define your own uint128_t */ +typedef uint128_t mp_word; +# endif -# define DIGIT_BIT 60 +# define DIGIT_BIT 60 #else - /* this is the default case, 28-bit digits */ - - /* this is to make porting into LibTomCrypt easier :-) */ -#ifndef CRYPT -# if defined(_MSC_VER) || defined(__BORLANDC__) - typedef unsigned __int64 ulong64; - typedef signed __int64 long64; -# else - typedef unsigned long long ulong64; - typedef signed long long long64; -# endif +/* this is the default case, 28-bit digits */ + +/* this is to make porting into LibTomCrypt easier :-) */ +typedef uint32_t mp_digit; +typedef uint64_t mp_word; + +# ifdef MP_31BIT +/* this is an extension that uses 31-bit digits */ +# define DIGIT_BIT 31 +# else +/* default case is 28-bit digits, defines MP_28BIT as a handy macro to test */ +# define DIGIT_BIT 28 +# define MP_28BIT +# endif #endif - typedef unsigned long mp_digit; - typedef ulong64 mp_word; - -#ifdef MP_31BIT - /* this is an extension that uses 31-bit digits */ -# define DIGIT_BIT 31 +/* otherwise the bits per digit is calculated automatically from the size of a mp_digit */ +#ifndef DIGIT_BIT +# define DIGIT_BIT (((CHAR_BIT * MP_SIZEOF_MP_DIGIT) - 1)) /* bits per digit */ +typedef uint_least32_t mp_min_u32; #else - /* default case is 28-bit digits, defines MP_28BIT as a handy macro to test */ -# define DIGIT_BIT 28 -# define MP_28BIT -#endif +typedef mp_digit mp_min_u32; #endif -/* define heap macros */ -#ifndef CRYPT - /* default to libc stuff */ -# ifndef XMALLOC -# define XMALLOC malloc -# define XFREE free -# define XREALLOC realloc -# define XCALLOC calloc -# else - /* prototypes for our heap functions */ - extern void *XMALLOC(size_t n); - extern void *XREALLOC(void *p, size_t n); - extern void *XCALLOC(size_t n, size_t s); - extern void XFREE(void *p); -# endif +/* use arc4random on platforms that support it */ +#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) +# define MP_GEN_RANDOM() arc4random() +# define MP_GEN_RANDOM_MAX 0xffffffff #endif - -/* otherwise the bits per digit is calculated automatically from the size of a mp_digit */ -#ifndef DIGIT_BIT -# define DIGIT_BIT ((int)((CHAR_BIT * sizeof(mp_digit) - 1))) /* bits per digit */ +/* use rand() as fall-back if there's no better rand function */ +#ifndef MP_GEN_RANDOM +# define MP_GEN_RANDOM() rand() +# define MP_GEN_RANDOM_MAX RAND_MAX #endif #define MP_DIGIT_BIT DIGIT_BIT @@ -156,41 +140,41 @@ typedef int mp_err; /* you'll have to tune these... */ extern int KARATSUBA_MUL_CUTOFF, - KARATSUBA_SQR_CUTOFF, - TOOM_MUL_CUTOFF, - TOOM_SQR_CUTOFF; + KARATSUBA_SQR_CUTOFF, + TOOM_MUL_CUTOFF, + TOOM_SQR_CUTOFF; /* define this to use lower memory usage routines (exptmods mostly) */ /* #define MP_LOW_MEM */ /* default precision */ #ifndef MP_PREC -# ifndef MP_LOW_MEM -# define MP_PREC 32 /* default digits of precision */ -# else -# define MP_PREC 8 /* default digits of precision */ -# endif +# ifndef MP_LOW_MEM +# define MP_PREC 32 /* default digits of precision */ +# else +# define MP_PREC 8 /* default digits of precision */ +# endif #endif /* size of comba arrays, should be at least 2 * 2**(BITS_PER_WORD - BITS_PER_DIGIT*2) */ -#define MP_WARRAY (1 << (sizeof(mp_word) * CHAR_BIT - 2 * DIGIT_BIT + 1)) +#define MP_WARRAY (1 << (((sizeof(mp_word) * CHAR_BIT) - (2 * DIGIT_BIT)) + 1)) /* the infamous mp_int structure */ typedef struct { - int used, alloc, sign; - mp_digit *dp; + int used, alloc, sign; + mp_digit *dp; } mp_int; /* callback for mp_prime_random, should fill dst with random bytes and return how many read [upto len] */ typedef int ltm_prime_callback(unsigned char *dst, int len, void *dat); -#define USED(m) ((m)->used) -#define DIGIT(m,k) ((m)->dp[(k)]) -#define SIGN(m) ((m)->sign) +#define USED(m) ((m)->used) +#define DIGIT(m, k) ((m)->dp[(k)]) +#define SIGN(m) ((m)->sign) /* error code to char* string */ -char *mp_error_to_string(int code); +const char *mp_error_to_string(int code); /* ---> init and deinit bignum functions <--- */ /* init a bignum */ @@ -219,8 +203,9 @@ int mp_init_size(mp_int *a, int size); /* ---> Basic Manipulations <--- */ #define mp_iszero(a) (((a)->used == 0) ? MP_YES : MP_NO) -#define mp_iseven(a) (((a)->used == 0 || (((a)->dp[0] & 1) == 0)) ? MP_YES : MP_NO) -#define mp_isodd(a) (((a)->used > 0 && (((a)->dp[0] & 1) == 1)) ? MP_YES : MP_NO) +#define mp_iseven(a) ((((a)->used == 0) || (((a)->dp[0] & 1u) == 0u)) ? MP_YES : MP_NO) +#define mp_isodd(a) ((((a)->used > 0) && (((a)->dp[0] & 1u) == 1u)) ? MP_YES : MP_NO) +#define mp_isneg(a) (((a)->sign != MP_ZPOS) ? MP_YES : MP_NO) /* set to zero */ void mp_zero(mp_int *a); @@ -231,24 +216,42 @@ void mp_set(mp_int *a, mp_digit b); /* set a 32-bit const */ int mp_set_int(mp_int *a, unsigned long b); +/* set a platform dependent unsigned long value */ +int mp_set_long(mp_int *a, unsigned long b); + +/* set a platform dependent unsigned long long value */ +int mp_set_long_long(mp_int *a, Tcl_WideUInt b); + /* get a 32-bit value */ -unsigned long mp_get_int(mp_int * a); +unsigned long mp_get_int(const mp_int *a); + +/* get a platform dependent unsigned long value */ +unsigned long mp_get_long(const mp_int *a); + +/* get a platform dependent unsigned long long value */ +Tcl_WideUInt mp_get_long_long(const mp_int *a); /* initialize and set a digit */ -int mp_init_set (mp_int * a, mp_digit b); +int mp_init_set(mp_int *a, mp_digit b); /* initialize and set 32-bit value */ -int mp_init_set_int (mp_int * a, unsigned long b); +int mp_init_set_int(mp_int *a, unsigned long b); /* copy, b = a */ int mp_copy(const mp_int *a, mp_int *b); /* inits and copies, a = b */ -int mp_init_copy(mp_int *a, mp_int *b); +int mp_init_copy(mp_int *a, const mp_int *b); /* trim unused digits */ void mp_clamp(mp_int *a); +/* import binary data */ +int mp_import(mp_int *rop, size_t count, int order, size_t size, int endian, size_t nails, const void *op); + +/* export binary data */ +int mp_export(void *rop, size_t *countp, int order, size_t size, int endian, size_t nails, mp_int *op); + /* ---> digit manipulation <--- */ /* right shift by "b" digits */ @@ -257,19 +260,19 @@ void mp_rshd(mp_int *a, int b); /* left shift by "b" digits */ int mp_lshd(mp_int *a, int b); -/* c = a / 2**b */ +/* c = a / 2**b, implemented as c = a >> b */ int mp_div_2d(const mp_int *a, int b, mp_int *c, mp_int *d); /* b = a/2 */ -int mp_div_2(mp_int *a, mp_int *b); +int mp_div_2(const mp_int *a, mp_int *b); -/* c = a * 2**b */ +/* c = a * 2**b, implemented as c = a << b */ int mp_mul_2d(const mp_int *a, int b, mp_int *c); /* b = a*2 */ -int mp_mul_2(mp_int *a, mp_int *b); +int mp_mul_2(const mp_int *a, mp_int *b); -/* c = a mod 2**d */ +/* c = a mod 2**b */ int mp_mod_2d(const mp_int *a, int b, mp_int *c); /* computes a = 2**b */ @@ -285,13 +288,13 @@ int mp_rand(mp_int *a, int digits); /* ---> binary operations <--- */ /* c = a XOR b */ -int mp_xor(mp_int *a, mp_int *b, mp_int *c); +int mp_xor(const mp_int *a, const mp_int *b, mp_int *c); /* c = a OR b */ -int mp_or(mp_int *a, mp_int *b, mp_int *c); +int mp_or(const mp_int *a, const mp_int *b, mp_int *c); /* c = a AND b */ -int mp_and(mp_int *a, mp_int *b, mp_int *c); +int mp_and(const mp_int *a, const mp_int *b, mp_int *c); /* ---> Basic arithmetic <--- */ @@ -299,7 +302,7 @@ int mp_and(mp_int *a, mp_int *b, mp_int *c); int mp_neg(const mp_int *a, mp_int *b); /* b = |a| */ -int mp_abs(mp_int *a, mp_int *b); +int mp_abs(const mp_int *a, mp_int *b); /* compare a to b */ int mp_cmp(const mp_int *a, const mp_int *b); @@ -308,22 +311,22 @@ int mp_cmp(const mp_int *a, const mp_int *b); int mp_cmp_mag(const mp_int *a, const mp_int *b); /* c = a + b */ -int mp_add(mp_int *a, mp_int *b, mp_int *c); +int mp_add(const mp_int *a, const mp_int *b, mp_int *c); /* c = a - b */ -int mp_sub(mp_int *a, mp_int *b, mp_int *c); +int mp_sub(const mp_int *a, const mp_int *b, mp_int *c); /* c = a * b */ -int mp_mul(mp_int *a, mp_int *b, mp_int *c); +int mp_mul(const mp_int *a, const mp_int *b, mp_int *c); /* b = a*a */ -int mp_sqr(mp_int *a, mp_int *b); +int mp_sqr(const mp_int *a, mp_int *b); /* a/b => cb + d == a */ -int mp_div(mp_int *a, mp_int *b, mp_int *c, mp_int *d); +int mp_div(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d); /* c = a mod b, 0 <= c < b */ -int mp_mod(mp_int *a, mp_int *b, mp_int *c); +int mp_mod(const mp_int *a, const mp_int *b, mp_int *c); /* ---> single digit functions <--- */ @@ -331,145 +334,150 @@ int mp_mod(mp_int *a, mp_int *b, mp_int *c); int mp_cmp_d(const mp_int *a, mp_digit b); /* c = a + b */ -int mp_add_d(mp_int *a, mp_digit b, mp_int *c); +int mp_add_d(const mp_int *a, mp_digit b, mp_int *c); /* c = a - b */ -int mp_sub_d(mp_int *a, mp_digit b, mp_int *c); +int mp_sub_d(const mp_int *a, mp_digit b, mp_int *c); /* c = a * b */ -int mp_mul_d(mp_int *a, mp_digit b, mp_int *c); +int mp_mul_d(const mp_int *a, mp_digit b, mp_int *c); /* a/b => cb + d == a */ -int mp_div_d(mp_int *a, mp_digit b, mp_int *c, mp_digit *d); +int mp_div_d(const mp_int *a, mp_digit b, mp_int *c, mp_digit *d); /* a/3 => 3c + d == a */ -int mp_div_3(mp_int *a, mp_int *c, mp_digit *d); +int mp_div_3(const mp_int *a, mp_int *c, mp_digit *d); /* c = a**b */ -int mp_expt_d(mp_int *a, mp_digit b, mp_int *c); +int mp_expt_d(const mp_int *a, mp_digit b, mp_int *c); +int mp_expt_d_ex(const mp_int *a, mp_digit b, mp_int *c, int fast); /* c = a mod b, 0 <= c < b */ -int mp_mod_d(mp_int *a, mp_digit b, mp_digit *c); +int mp_mod_d(const mp_int *a, mp_digit b, mp_digit *c); /* ---> number theory <--- */ /* d = a + b (mod c) */ -int mp_addmod(mp_int *a, mp_int *b, mp_int *c, mp_int *d); +int mp_addmod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d); /* d = a - b (mod c) */ -int mp_submod(mp_int *a, mp_int *b, mp_int *c, mp_int *d); +int mp_submod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d); /* d = a * b (mod c) */ -int mp_mulmod(mp_int *a, mp_int *b, mp_int *c, mp_int *d); +int mp_mulmod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d); /* c = a * a (mod b) */ -int mp_sqrmod(mp_int *a, mp_int *b, mp_int *c); +int mp_sqrmod(const mp_int *a, const mp_int *b, mp_int *c); /* c = 1/a (mod b) */ -int mp_invmod(mp_int *a, mp_int *b, mp_int *c); +int mp_invmod(const mp_int *a, const mp_int *b, mp_int *c); /* c = (a, b) */ -int mp_gcd(mp_int *a, mp_int *b, mp_int *c); +int mp_gcd(const mp_int *a, const mp_int *b, mp_int *c); /* produces value such that U1*a + U2*b = U3 */ -int mp_exteuclid(mp_int *a, mp_int *b, mp_int *U1, mp_int *U2, mp_int *U3); +int mp_exteuclid(const mp_int *a, const mp_int *b, mp_int *U1, mp_int *U2, mp_int *U3); /* c = [a, b] or (a*b)/(a, b) */ -int mp_lcm(mp_int *a, mp_int *b, mp_int *c); +int mp_lcm(const mp_int *a, const mp_int *b, mp_int *c); /* finds one of the b'th root of a, such that |c|**b <= |a| * * returns error if a < 0 and b is even */ -int mp_n_root(mp_int *a, mp_digit b, mp_int *c); +int mp_n_root(const mp_int *a, mp_digit b, mp_int *c); +int mp_n_root_ex(const mp_int *a, mp_digit b, mp_int *c, int fast); /* special sqrt algo */ -int mp_sqrt(mp_int *arg, mp_int *ret); +int mp_sqrt(const mp_int *arg, mp_int *ret); + +/* special sqrt (mod prime) */ +int mp_sqrtmod_prime(const mp_int *arg, const mp_int *prime, mp_int *ret); /* is number a square? */ -int mp_is_square(mp_int *arg, int *ret); +int mp_is_square(const mp_int *arg, int *ret); /* computes the jacobi c = (a | n) (or Legendre if b is prime) */ -int mp_jacobi(mp_int *a, mp_int *n, int *c); +int mp_jacobi(const mp_int *a, const mp_int *n, int *c); /* used to setup the Barrett reduction for a given modulus b */ -int mp_reduce_setup(mp_int *a, mp_int *b); +int mp_reduce_setup(mp_int *a, const mp_int *b); /* Barrett Reduction, computes a (mod b) with a precomputed value c * * Assumes that 0 < a <= b*b, note if 0 > a > -(b*b) then you can merely * compute the reduction as -1 * mp_reduce(mp_abs(a)) [pseudo code]. */ -int mp_reduce(mp_int *a, mp_int *b, mp_int *c); +int mp_reduce(mp_int *a, const mp_int *b, mp_int *c); /* setups the montgomery reduction */ -int mp_montgomery_setup(mp_int *a, mp_digit *mp); +int mp_montgomery_setup(const mp_int *a, mp_digit *mp); /* computes a = B**n mod b without division or multiplication useful for * normalizing numbers in a Montgomery system. */ -int mp_montgomery_calc_normalization(mp_int *a, mp_int *b); +int mp_montgomery_calc_normalization(mp_int *a, const mp_int *b); /* computes x/R == x (mod N) via Montgomery Reduction */ -int mp_montgomery_reduce(mp_int *a, mp_int *m, mp_digit mp); +int mp_montgomery_reduce(mp_int *a, const mp_int *m, mp_digit mp); /* returns 1 if a is a valid DR modulus */ -int mp_dr_is_modulus(mp_int *a); +int mp_dr_is_modulus(const mp_int *a); /* sets the value of "d" required for mp_dr_reduce */ -void mp_dr_setup(mp_int *a, mp_digit *d); +void mp_dr_setup(const mp_int *a, mp_digit *d); /* reduces a modulo b using the Diminished Radix method */ -int mp_dr_reduce(mp_int *a, mp_int *b, mp_digit mp); +int mp_dr_reduce(mp_int *a, const mp_int *b, mp_digit mp); /* returns true if a can be reduced with mp_reduce_2k */ -int mp_reduce_is_2k(mp_int *a); +int mp_reduce_is_2k(const mp_int *a); /* determines k value for 2k reduction */ -int mp_reduce_2k_setup(mp_int *a, mp_digit *d); +int mp_reduce_2k_setup(const mp_int *a, mp_digit *d); /* reduces a modulo b where b is of the form 2**p - k [0 <= a] */ -int mp_reduce_2k(mp_int *a, mp_int *n, mp_digit d); +int mp_reduce_2k(mp_int *a, const mp_int *n, mp_digit d); /* returns true if a can be reduced with mp_reduce_2k_l */ -int mp_reduce_is_2k_l(mp_int *a); +int mp_reduce_is_2k_l(const mp_int *a); /* determines k value for 2k reduction */ -int mp_reduce_2k_setup_l(mp_int *a, mp_int *d); +int mp_reduce_2k_setup_l(const mp_int *a, mp_int *d); /* reduces a modulo b where b is of the form 2**p - k [0 <= a] */ -int mp_reduce_2k_l(mp_int *a, mp_int *n, mp_int *d); +int mp_reduce_2k_l(mp_int *a, const mp_int *n, mp_int *d); /* d = a**b (mod c) */ -int mp_exptmod(mp_int *a, mp_int *b, mp_int *c, mp_int *d); +int mp_exptmod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d); /* ---> Primes <--- */ /* number of primes */ #ifdef MP_8BIT -# define PRIME_SIZE 31 +# define PRIME_SIZE 31 #else -# define PRIME_SIZE 256 +# define PRIME_SIZE 256 #endif /* table of first PRIME_SIZE primes */ -extern const mp_digit ltm_prime_tab[]; +extern const mp_digit ltm_prime_tab[PRIME_SIZE]; /* result=1 if a is divisible by one of the first PRIME_SIZE primes */ -int mp_prime_is_divisible(mp_int *a, int *result); +int mp_prime_is_divisible(const mp_int *a, int *result); /* performs one Fermat test of "a" using base "b". * Sets result to 0 if composite or 1 if probable prime */ -int mp_prime_fermat(mp_int *a, mp_int *b, int *result); +int mp_prime_fermat(const mp_int *a, const mp_int *b, int *result); /* performs one Miller-Rabin test of "a" using base "b". * Sets result to 0 if composite or 1 if probable prime */ -int mp_prime_miller_rabin(mp_int *a, mp_int *b, int *result); +int mp_prime_miller_rabin(const mp_int *a, const mp_int *b, int *result); /* This gives [for a given bit size] the number of trials required - * such that Miller-Rabin gives a prob of failure lower than 2^-96 + * such that Miller-Rabin gives a prob of failure lower than 2^-96 */ int mp_prime_rabin_miller_trials(int size); @@ -480,7 +488,7 @@ int mp_prime_rabin_miller_trials(int size); * * Sets result to 1 if probably prime, 0 otherwise */ -int mp_prime_is_prime(mp_int *a, int t, int *result); +int mp_prime_is_prime(const mp_int *a, int t, int *result); /* finds the next prime after the number "a" using "t" trials * of Miller-Rabin. @@ -490,7 +498,7 @@ int mp_prime_is_prime(mp_int *a, int t, int *result); int mp_prime_next_prime(mp_int *a, int t, int bbs_style); /* makes a truly random prime of a given size (bytes), - * call with bbs = 1 if you want it to be congruent to 3 mod 4 + * call with bbs = 1 if you want it to be congruent to 3 mod 4 * * You have to supply a callback which fills in a buffer with random bytes. "dat" is a parameter you can * have passed to the callback (e.g. a state or something). This function doesn't use "dat" itself @@ -503,10 +511,9 @@ int mp_prime_next_prime(mp_int *a, int t, int bbs_style); /* makes a truly random prime of a given size (bits), * * Flags are as follows: - * + * * LTM_PRIME_BBS - make prime congruent to 3 mod 4 * LTM_PRIME_SAFE - make sure (p-1)/2 is prime as well (implies LTM_PRIME_BBS) - * LTM_PRIME_2MSB_OFF - make the 2nd highest bit zero * LTM_PRIME_2MSB_ON - make the 2nd highest bit one * * You have to supply a callback which fills in a buffer with random bytes. "dat" is a parameter you can @@ -519,23 +526,25 @@ int mp_prime_random_ex(mp_int *a, int t, int size, int flags, ltm_prime_callback /* ---> radix conversion <--- */ int mp_count_bits(const mp_int *a); -int mp_unsigned_bin_size(mp_int *a); +int mp_unsigned_bin_size(const mp_int *a); int mp_read_unsigned_bin(mp_int *a, const unsigned char *b, int c); -int mp_to_unsigned_bin(mp_int *a, unsigned char *b); -int mp_to_unsigned_bin_n (mp_int * a, unsigned char *b, unsigned long *outlen); +int mp_to_unsigned_bin(const mp_int *a, unsigned char *b); +int mp_to_unsigned_bin_n(const mp_int *a, unsigned char *b, unsigned long *outlen); -int mp_signed_bin_size(mp_int *a); +int mp_signed_bin_size(const mp_int *a); int mp_read_signed_bin(mp_int *a, const unsigned char *b, int c); -int mp_to_signed_bin(mp_int *a, unsigned char *b); -int mp_to_signed_bin_n (mp_int * a, unsigned char *b, unsigned long *outlen); +int mp_to_signed_bin(const mp_int *a, unsigned char *b); +int mp_to_signed_bin_n(const mp_int *a, unsigned char *b, unsigned long *outlen); int mp_read_radix(mp_int *a, const char *str, int radix); -int mp_toradix(mp_int *a, char *str, int radix); -int mp_toradix_n(mp_int * a, char *str, int radix, int maxlen); -int mp_radix_size(mp_int *a, int radix, int *size); +int mp_toradix(const mp_int *a, char *str, int radix); +int mp_toradix_n(const mp_int *a, char *str, int radix, int maxlen); +int mp_radix_size(const mp_int *a, int radix, int *size); +#ifndef LTM_NO_FILE int mp_fread(mp_int *a, int radix, FILE *stream); -int mp_fwrite(mp_int *a, int radix, FILE *stream); +int mp_fwrite(const mp_int *a, int radix, FILE *stream); +#endif #define mp_read_raw(mp, str, len) mp_read_signed_bin((mp), (str), (len)) #define mp_raw_size(mp) mp_signed_bin_size(mp) @@ -549,31 +558,13 @@ int mp_fwrite(mp_int *a, int radix, FILE *stream); #define mp_todecimal(M, S) mp_toradix((M), (S), 10) #define mp_tohex(M, S) mp_toradix((M), (S), 16) -/* lowlevel functions, do not call! */ -int s_mp_add(mp_int *a, mp_int *b, mp_int *c); -int s_mp_sub(mp_int *a, mp_int *b, mp_int *c); -#define s_mp_mul(a, b, c) s_mp_mul_digs(a, b, c, (a)->used + (b)->used + 1) -int fast_s_mp_mul_digs(mp_int *a, mp_int *b, mp_int *c, int digs); -int s_mp_mul_digs(mp_int *a, mp_int *b, mp_int *c, int digs); -int fast_s_mp_mul_high_digs(mp_int *a, mp_int *b, mp_int *c, int digs); -int s_mp_mul_high_digs(mp_int *a, mp_int *b, mp_int *c, int digs); -int fast_s_mp_sqr(mp_int *a, mp_int *b); -int s_mp_sqr(mp_int *a, mp_int *b); -int mp_karatsuba_mul(mp_int *a, mp_int *b, mp_int *c); -int mp_toom_mul(mp_int *a, mp_int *b, mp_int *c); -int mp_karatsuba_sqr(mp_int *a, mp_int *b); -int mp_toom_sqr(mp_int *a, mp_int *b); -int fast_mp_invmod(mp_int *a, mp_int *b, mp_int *c); -int mp_invmod_slow (mp_int * a, mp_int * b, mp_int * c); -int fast_mp_montgomery_reduce(mp_int *a, mp_int *m, mp_digit mp); -int mp_exptmod_fast(mp_int *G, mp_int *X, mp_int *P, mp_int *Y, int mode); -int s_mp_exptmod (mp_int * G, mp_int * X, mp_int * P, mp_int * Y, int mode); -void bn_reverse(unsigned char *s, int len); - -extern const char *mp_s_rmap; - #ifdef __cplusplus } #endif #endif + + +/* ref: $Format:%D$ */ +/* git commit: $Format:%H$ */ +/* commit time: $Format:%ai$ */ |