conterm/libsec/eggen.c

22 lines
413 B
C

#include "os.h"
#include <mp.h>
#include <libsec.h>
EGpriv*
eggen(int nlen, int rounds)
{
EGpub *pub;
EGpriv *priv;
priv = egprivalloc();
pub = &priv->pub;
pub->p = mpnew(0);
pub->alpha = mpnew(0);
pub->key = mpnew(0);
priv->secret = mpnew(0);
gensafeprime(pub->p, pub->alpha, nlen, rounds);
mprand(nlen-1, genrandom, priv->secret);
mpexp(pub->alpha, priv->secret, pub->p, pub->key);
return priv;
}