1 #include <u.h>
2 #include <libc.h>
3 #include <mp.h>
4 #include <libsec.h>
5 
6 void
7 usage(void)
8 {
9 	fprint(2, "usage: auth/dsagen [-t 'attr=value attr=value ...']\n");
10 	exits("usage");
11 }
12 
13 void
14 main(int argc, char **argv)
15 {
16 	char *s;
17 	int bits;
18 	char *tag;
19 	DSApriv *key;
20 
21 	bits = 1024;
22 	tag = nil;
23 	key = nil;
24 	fmtinstall('B', mpfmt);
25 
26 	ARGBEGIN{
27 	case 't':
28 		tag = EARGF(usage());
29 		break;
30 	default:
31 		usage();
32 	}ARGEND
33 
34 	if(argc != 0)
35 		usage();
36 
37 	key = dsagen(nil);
38 
39 	s = smprint("key proto=dsa %s%sp=%lB q=%lB alpha=%lB key=%lB !secret=%lB\n",
40 		tag ? tag : "", tag ? " " : "",
41 		key->pub.p, key->pub.q, key->pub.alpha, key->pub.key,
42 		key->secret);
43 	if(s == nil)
44 		sysfatal("smprint: %r");
45 
46 	if(write(1, s, strlen(s)) != strlen(s))
47 		sysfatal("write: %r");
48 	
49 	exits(nil);
50 }