87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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/* Portions of this file are Copyright (C) 9front's team.
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* See /doc/license/9front-mit for details about the licensing.
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* See http://git.9front.org/plan9front/plan9front/HEAD/info.html for a list of authors.
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*/
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/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
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* See /doc/license/gpl-2.0.txt for details about the licensing.
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*/
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#include <u.h>
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#include <lib9.h>
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#include <bio.h>
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#include <mp.h>
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#include <libsec.h>
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void
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usage(void)
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{
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fprint(2, "auth/asn12rsa [-t tag] [file]\n");
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exits("usage");
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}
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void
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main(int argc, char **argv)
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{
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char *s;
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uint8_t *buf;
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int fd;
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int32_t n, tot;
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char *tag, *file;
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RSApriv *key;
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fmtinstall('B', mpfmt);
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tag = nil;
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ARGBEGIN{
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case 't':
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tag = EARGF(usage());
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break;
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default:
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usage();
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}ARGEND
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if(argc != 0 && argc != 1)
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usage();
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if(argc == 1)
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file = argv[0];
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else
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file = "#d/0";
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if((fd = sys_open(file, OREAD)) < 0)
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sysfatal("open %s: %r", file);
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buf = nil;
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tot = 0;
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for(;;){
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buf = realloc(buf, tot+8192);
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if(buf == nil)
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sysfatal("realloc: %r");
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if((n = jehanne_read(fd, buf+tot, 8192)) < 0)
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sysfatal("read: %r");
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if(n == 0)
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break;
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tot += n;
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}
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key = asn1toRSApriv(buf, tot);
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if(key == nil)
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sysfatal("couldn't parse asn1 key");
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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",
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tag ? tag : "", tag ? " " : "",
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mpsignif(key->pub.n), key->pub.ek,
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key->dk, key->pub.n, key->p, key->q,
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key->kp, key->kq, key->c2);
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if(s == nil)
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sysfatal("smprint: %r");
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jehanne_write(1, s, strlen(s));
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exits(0);
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}
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