bigdigitsRand.h File Reference

Interface for BigDigits "mp" random number functions using a "pretty-good" internal RNG. More...

Functions
size_t	mpRandomBits (DIGIT_T a[], size_t ndigits, size_t nbits)
	Generate a random mp number of bit length at most nbits using internal RNG. More...
int	mpRandomOctets (unsigned char *bytes, size_t nbytes, const unsigned char *seed, size_t seedlen)
	Generate array of random octets (bytes) using internal RNG. More...
DIGIT_T	spBetterRand (void)
	Returns a "better" pseudo-random digit using internal RNG. More...

Detailed Description

Interface for BigDigits "mp" random number functions using a "pretty-good" internal RNG.

Function Documentation

size_t mpRandomBits	(	DIGIT_T	a[],
		size_t	ndigits,
		size_t	nbits
	)

Generate a random mp number of bit length at most nbits using internal RNG.

Parameters

[out]	a	to receive generated random number
[in]	ndigits	number of digits in a
[in]	nbits	maximum number of bits

Returns

Number of digits actually set

int mpRandomOctets	(	unsigned char *	bytes,
		size_t	nbytes,
		const unsigned char *	seed,
		size_t	seedlen
	)

Generate array of random octets (bytes) using internal RNG.

Remarks

This function is in the correct form for BD_RANDFUNC to use in bdRandomSeeded(). seed is ignored.

DIGIT_T spBetterRand

(

void

)

Returns a "better" pseudo-random digit using internal RNG.