/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <mp.h>#include <libsec.h> voidusage(void){	fprint(2, "usage: auth/rsagen [-b bits] [-t 'attr=value attr=value ...']\n");	exits("usage");} voidmain(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);}