Commit 00975282 authored by Nick Mathewson's avatar Nick Mathewson 🐘
Browse files

Enhance tor-checkkey tool so it can generate key hashes too. 

svn:r18478
parent 34b285b0

src/tools/tor-checkkey.c

+25 −3
Changes for src/tools/tor-checkkey.c: 25 added lines, 3 removed lines.
Original line number Diff line number Diff line
@@ -17,12 +17,15 @@ int main(int c, char **v) 
  crypto_pk_env_t *env;

  char *str;

  RSA *rsa;

  int wantdigest=0;

  int fname_idx;

  init_logging();



  if (c < 2) {

    fprintf(stderr, "Hi. I'm tor-checkkey.  Tell me a filename that "

            "has a PEM-encoded RSA public key (like in a cert) and I'll "

            "dump the modulus.\n");

            "dump the modulus.  Use the --digest option too and I'll "

            "dump the digest.\n");

    return 1;

  }
@@ -31,9 +34,21 @@ int main(int c, char **v) 
    return 1;

  }



  str = read_file_to_str(v[1], 0, NULL);

  if (!strcmp(v[1], "--digest")) {

    wantdigest = 1;

    fname_idx = 2;

    if (c<3) {

      fprintf(stderr, "too few arguments");

      return 1;

    }

  } else {

    wantdigest = 0;

    fname_idx = 1;

  }



  str = read_file_to_str(v[fname_idx], 0, NULL);

  if (!str) {

    fprintf(stderr, "Couldn't read %s\n", v[1]);

    fprintf(stderr, "Couldn't read %s\n", v[fname_idx]);

    return 1;

  }
@@ -44,10 +59,17 @@ int main(int c, char **v) 
  }

  tor_free(str);



  if (wantdigest) {

    char digest[HEX_DIGEST_LEN+1];

    if (crypto_pk_get_fingerprint(env, digest, 0)<0)

      return 1;

    printf("%s\n",digest);

  } else {

    rsa = _crypto_pk_env_get_rsa(env);

    str = BN_bn2hex(rsa->n);



    printf("%s\n", str);

  }



  return 0;

}