Subversion Repositories planix.SVN

#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=%B !dk=%B n=%B !p=%B !q=%B !kp=%B !kq=%B !c2=%B\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);
}