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https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-14 07:03:44 +01:00
fcdcb377a4
Because in 95 years, we or our successors will surely care about enforcing the BSD license terms on this code. Right?
81 lines
1.7 KiB
C
81 lines
1.7 KiB
C
/* Copyright (c) 2008-2014, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#include "orconfig.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include "crypto.h"
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#include "torlog.h"
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#include "../common/util.h"
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#include "compat.h"
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#include <openssl/bn.h>
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#include <openssl/rsa.h>
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int
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main(int c, char **v)
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{
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crypto_pk_t *env;
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char *str;
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RSA *rsa;
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int wantdigest=0;
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int fname_idx;
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char *fname=NULL;
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init_logging(1);
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if (c < 2) {
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fprintf(stderr, "Hi. I'm tor-checkkey. Tell me a filename that "
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"has a PEM-encoded RSA public key (like in a cert) and I'll "
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"dump the modulus. Use the --digest option too and I'll "
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"dump the digest.\n");
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return 1;
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}
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if (crypto_global_init(0, NULL, NULL)) {
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fprintf(stderr, "Couldn't initialize crypto library.\n");
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return 1;
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}
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if (!strcmp(v[1], "--digest")) {
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wantdigest = 1;
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fname_idx = 2;
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if (c<3) {
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fprintf(stderr, "too few arguments");
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return 1;
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}
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} else {
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wantdigest = 0;
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fname_idx = 1;
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}
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fname = expand_filename(v[fname_idx]);
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str = read_file_to_str(fname, 0, NULL);
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tor_free(fname);
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if (!str) {
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fprintf(stderr, "Couldn't read %s\n", v[fname_idx]);
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return 1;
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}
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env = crypto_pk_new();
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if (crypto_pk_read_public_key_from_string(env, str, strlen(str))<0) {
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fprintf(stderr, "Couldn't parse key.\n");
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return 1;
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}
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tor_free(str);
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if (wantdigest) {
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char digest[HEX_DIGEST_LEN+1];
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if (crypto_pk_get_fingerprint(env, digest, 0)<0)
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return 1;
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printf("%s\n",digest);
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} else {
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rsa = crypto_pk_get_rsa_(env);
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str = BN_bn2hex(rsa->n);
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printf("%s\n", str);
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}
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return 0;
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}
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