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| GENRANDOM(3) | FreeBSD Library Functions Manual | GENRANDOM(3) |
NAME
genrandom, prng - random number generationSYNOPSIS
#include <u.h>#include <libc.h>
#include <mp.h>
#include <libsec.h>
void genrandom(uchar *buf, int nbytes)
void prng(uchar *buf, int nbytes)
DESCRIPTION
Most security software requires a source of random or, at the very least, unguessable numbers.Genrandom fills a buffer with bytes from the X9.17 pseudo-random number generator. The X9.17 generator is seeded by 24 truly random bytes read via truerand (see
Prng uses the native pseudo-random number generator to fill the buffer. Used with srand, this function can produce a reproducible stream of pseudo random numbers useful in testing.
Both functions may be passed to mprand (see
SOURCE
/src/libsecSEE ALSO
Visit the GSP FreeBSD Man Page Interface.
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