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#include <u.h>
#include <libc.h>
#include <mp.h>
#include <libsec.h>
void
usage(void)
{
fprint(2, "usage: auth/rsagen [-b bits] [-t 'attr=value attr=value ...']\n");
exits("usage");
}
void
main(int argc, char **argv)
{
char *s;
int bits;
char *tag;
RSApriv *key;
bits = 1024;
tag = nil;
key = nil;
fmtinstall('B', mpfmt);
ARGBEGIN{
case 'b':
bits = atoi(EARGF(usage()));
if(bits == 0)
usage();
break;
case 't':
tag = EARGF(usage());
break;
default:
usage();
}ARGEND
if(argc != 0)
usage();
do{
if(key)
rsaprivfree(key);
key = rsagen(bits, 6, 0);
}while(mpsignif(key->pub.n) != bits);
s = smprint("key proto=rsa %s%ssize=%d ek=%lB !dk=%lB n=%lB !p=%lB !q=%lB !kp=%lB !kq=%lB !c2=%lB\n",
tag ? tag : "", tag ? " " : "",
mpsignif(key->pub.n), key->pub.ek,
key->dk, key->pub.n, key->p, key->q,
key->kp, key->kq, key->c2);
if(s == nil)
sysfatal("smprint: %r");
if(write(1, s, strlen(s)) != strlen(s))
sysfatal("write: %r");
exits(nil);
}
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