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RAND: cleanup after merge

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hasufell 2014-05-19 21:58:56 +02:00
parent 2e222ccad3
commit cd1611c018
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GPG Key ID: 220CD1C5BDEED020
2 changed files with 21 additions and 9 deletions
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21
src/rand.c
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@ -43,13 +43,14 @@
static mp_digit get_int_dev_random(void); static mp_digit get_int_dev_random(void);
static mp_digit get_int_dev_urandom(void); static mp_digit get_int_dev_urandom(void);
static mp_digit get_random_ternary(mp_digit random_int, int* sign); static mp_digit get_random_ternary(mp_digit random_int, int* sign);
static mp_int *get_random_bigint(mp_int *upper_bound, mp_int *lower_bound, static mp_int *get_random_bigint(mp_int *upper_bound,
mp_int *lower_bound,
int entropy_source); int entropy_source);
static unsigned int check_allowed_zeros(pb_poly *polynom); static unsigned int check_allowed_zeros(pb_poly *polynom);
/** /**
* Reads a single mp_digit out of /dev/random and returns this mp_digit * Reads a single mp_digit out of /dev/random and returns this mp_digit
* *
* @return the randomly chosen integer * @return the randomly chosen integer
*/ */
static mp_digit get_int_dev_random(void) static mp_digit get_int_dev_random(void)
@ -126,11 +127,12 @@ static mp_digit get_random_ternary(mp_digit random_int, int* sign)
* entropy_source random_int TODO * entropy_source random_int TODO
* @return a mp_int with the random number * @return a mp_int with the random number
*/ */
static mp_int *get_random_bigint(mp_int *upper_bound, mp_int *lower_bound, static mp_int *get_random_bigint(mp_int *upper_bound,
mp_int *lower_bound,
int entropy_source) int entropy_source)
{ {
mp_int result; mp_int *result = NULL;
init_integer(&result); init_integer(result);
//TODO //TODO
@ -193,14 +195,19 @@ pb_poly *ntru_get_random_poly_ternary(size_t length, int entropy_source)
/** /**
* Gets a random polynomial with coefficients * Gets a random polynomial with coefficients
* from the the borders of lower_bound to upper_bound using the given entropy source * from the the borders of lower_bound to upper_bound
* using the given entropy source
* *
* @param length the amount of coefficients * @param length the amount of coefficients
* @param entropy_source the source of entropy you want * @param entropy_source the source of entropy you want
* @return newly allocated polynomial, must be freed with delete_polynom() * @return newly allocated polynomial, must be freed with delete_polynom()
*/ */
pb_poly *ntru_get_random_poly(int length, int entropy_source, mp_int *upper_bound, pb_poly *ntru_get_random_poly(int length,
int entropy_source,
mp_int *upper_bound,
mp_int *lower_bound) mp_int *lower_bound)
{ {
//TODO //TODO
return NULL;
} }

9
src/rand.h
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@ -22,6 +22,7 @@
#ifndef NTRU_RAND_H #ifndef NTRU_RAND_H
#define NTRU_RAND_H #define NTRU_RAND_H
#include "context.h" #include "context.h"
#include <tompoly.h> #include <tompoly.h>
@ -36,8 +37,12 @@
*/ */
#define GET_INT_FROM_RRAND 3 #define GET_INT_FROM_RRAND 3
pb_poly *ntru_get_random_poly_ternary(int length, int entropy_source);
pb_poly *ntru_get_random_poly(size_t length, int entropy_source, mp_int *upper_bound, pb_poly *ntru_get_random_poly_ternary(size_t length, int entropy_source);
pb_poly *ntru_get_random_poly(int length,
int entropy_source,
mp_int *upper_bound,
mp_int *lower_bound); mp_int *lower_bound);
#endif /* NTRU_RAND_H */ #endif /* NTRU_RAND_H */