diff options
Diffstat (limited to 'src/num.h')
| -rw-r--r-- | src/num.h | 42 |
1 files changed, 5 insertions, 37 deletions
@@ -7,6 +7,8 @@ #ifndef _SECP256K1_NUM_ #define _SECP256K1_NUM_ +#ifndef USE_NUM_NONE + #if defined HAVE_CONFIG_H #include "libsecp256k1-config.h" #endif @@ -17,9 +19,6 @@ #error "Please select num implementation" #endif -/** Clear a number to prevent the leak of sensitive data. */ -static void secp256k1_num_clear(secp256k1_num_t *r); - /** Copy a number. */ static void secp256k1_num_copy(secp256k1_num_t *r, const secp256k1_num_t *a); @@ -30,15 +29,9 @@ static void secp256k1_num_get_bin(unsigned char *r, unsigned int rlen, const sec /** Set a number to the value of a binary big-endian string. */ static void secp256k1_num_set_bin(secp256k1_num_t *r, const unsigned char *a, unsigned int alen); -/** Set a number equal to a (signed) integer. */ -static void secp256k1_num_set_int(secp256k1_num_t *r, int a); - /** Compute a modular inverse. The input must be less than the modulus. */ static void secp256k1_num_mod_inverse(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *m); -/** Multiply two numbers modulo another. */ -static void secp256k1_num_mod_mul(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b, const secp256k1_num_t *m); - /** Compare the absolute value of two numbers. */ static int secp256k1_num_cmp(const secp256k1_num_t *a, const secp256k1_num_t *b); @@ -54,47 +47,22 @@ static void secp256k1_num_sub(secp256k1_num_t *r, const secp256k1_num_t *a, cons /** Multiply two (signed) numbers. */ static void secp256k1_num_mul(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b); -/** Divide two (signed) numbers. */ -static void secp256k1_num_div(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b); - /** Replace a number by its remainder modulo m. M's sign is ignored. The result is a number between 0 and m-1, even if r was negative. */ static void secp256k1_num_mod(secp256k1_num_t *r, const secp256k1_num_t *m); -/** Calculate the number of bits in (the absolute value of) a number. */ -static int secp256k1_num_bits(const secp256k1_num_t *a); - -/** Right-shift the passed number by bits bits, and return those bits. */ -static int secp256k1_num_shift(secp256k1_num_t *r, int bits); +/** Right-shift the passed number by bits bits. */ +static void secp256k1_num_shift(secp256k1_num_t *r, int bits); /** Check whether a number is zero. */ static int secp256k1_num_is_zero(const secp256k1_num_t *a); -/** Check whether a number is odd. */ -static int secp256k1_num_is_odd(const secp256k1_num_t *a); - /** Check whether a number is strictly negative. */ static int secp256k1_num_is_neg(const secp256k1_num_t *a); -/** Check whether a particular bit is set in a number. */ -static int secp256k1_num_get_bit(const secp256k1_num_t *a, int pos); - -/** Increase a number by 1. */ -static void secp256k1_num_inc(secp256k1_num_t *r); - -/** Set a number equal to the value of a hex string (unsigned). */ -static void secp256k1_num_set_hex(secp256k1_num_t *r, const char *a, int alen); - -/** Convert (the absolute value of) a number to a hexadecimal string. */ -static void secp256k1_num_get_hex(char *r, int rlen, const secp256k1_num_t *a); - -/** Split a number into a low and high part. */ -static void secp256k1_num_split(secp256k1_num_t *rl, secp256k1_num_t *rh, const secp256k1_num_t *a, int bits); - /** Change a number's sign. */ static void secp256k1_num_negate(secp256k1_num_t *r); -/** Get a bunch of bits from a number. */ -static int secp256k1_num_get_bits(const secp256k1_num_t *a, int offset, int count); +#endif #endif |