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- /*
- * 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 <bio.h>
- #include <mp.h>
- #include <libsec.h>
- void
- usage(void)
- {
- fprint(2, "auth/asn12rsa [-t tag] [file]\n");
- exits("usage");
- }
- void
- main(int argc, char **argv)
- {
- char *s;
- unsigned char *buf;
- int fd;
- int32_t n, tot;
- char *tag, *file;
- RSApriv *key;
- fmtinstall('B', mpfmt);
- tag = nil;
- ARGBEGIN{
- case 't':
- tag = EARGF(usage());
- break;
- default:
- usage();
- }ARGEND
- if(argc != 0 && argc != 1)
- usage();
- if(argc == 1)
- file = argv[0];
- else
- file = "#d/0";
- if((fd = open(file, OREAD)) < 0)
- sysfatal("open %s: %r", file);
- buf = nil;
- tot = 0;
- for(;;){
- buf = realloc(buf, tot+8192);
- if(buf == nil)
- sysfatal("realloc: %r");
- if((n = read(fd, buf+tot, 8192)) < 0)
- sysfatal("read: %r");
- if(n == 0)
- break;
- tot += n;
- }
- key = asn1toRSApriv(buf, tot);
- if(key == nil)
- sysfatal("couldn't parse asn1 key");
- 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");
- write(1, s, strlen(s));
- exits(0);
- }
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