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