[331] | 1 | /*
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| 2 | * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include <stdlib.h>
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| 12 | #include <string.h>
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| 13 | #include <time.h>
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| 14 | #include "apps.h"
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| 15 | #include <openssl/bio.h>
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| 16 | #include <openssl/conf.h>
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| 17 | #include <openssl/err.h>
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| 18 | #include <openssl/evp.h>
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| 19 | #include <openssl/lhash.h>
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| 20 | #include <openssl/x509.h>
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| 21 | #include <openssl/pem.h>
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| 22 |
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| 23 | typedef enum OPTION_choice {
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| 24 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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| 25 | OPT_NOOUT, OPT_PUBKEY, OPT_VERIFY, OPT_IN, OPT_OUT,
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| 26 | OPT_ENGINE, OPT_KEY, OPT_CHALLENGE, OPT_PASSIN, OPT_SPKAC,
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| 27 | OPT_SPKSECT
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| 28 | } OPTION_CHOICE;
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| 29 |
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| 30 | OPTIONS spkac_options[] = {
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| 31 | {"help", OPT_HELP, '-', "Display this summary"},
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| 32 | {"in", OPT_IN, '<', "Input file"},
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| 33 | {"out", OPT_OUT, '>', "Output file"},
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| 34 | {"key", OPT_KEY, '<', "Create SPKAC using private key"},
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| 35 | {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
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| 36 | {"challenge", OPT_CHALLENGE, 's', "Challenge string"},
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| 37 | {"spkac", OPT_SPKAC, 's', "Alternative SPKAC name"},
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| 38 | {"noout", OPT_NOOUT, '-', "Don't print SPKAC"},
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| 39 | {"pubkey", OPT_PUBKEY, '-', "Output public key"},
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| 40 | {"verify", OPT_VERIFY, '-', "Verify SPKAC signature"},
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| 41 | {"spksect", OPT_SPKSECT, 's',
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| 42 | "Specify the name of an SPKAC-dedicated section of configuration"},
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| 43 | #ifndef OPENSSL_NO_ENGINE
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| 44 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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| 45 | #endif
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| 46 | {NULL}
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| 47 | };
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| 48 |
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| 49 | int spkac_main(int argc, char **argv)
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| 50 | {
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| 51 | BIO *out = NULL;
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| 52 | CONF *conf = NULL;
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| 53 | ENGINE *e = NULL;
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| 54 | EVP_PKEY *pkey = NULL;
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| 55 | NETSCAPE_SPKI *spki = NULL;
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| 56 | char *challenge = NULL, *keyfile = NULL;
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| 57 | char *infile = NULL, *outfile = NULL, *passinarg = NULL, *passin = NULL;
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| 58 | char *spkstr = NULL, *prog;
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| 59 | const char *spkac = "SPKAC", *spksect = "default";
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| 60 | int i, ret = 1, verify = 0, noout = 0, pubkey = 0;
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| 61 | OPTION_CHOICE o;
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| 62 |
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| 63 | prog = opt_init(argc, argv, spkac_options);
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| 64 | while ((o = opt_next()) != OPT_EOF) {
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| 65 | switch (o) {
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| 66 | case OPT_EOF:
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| 67 | case OPT_ERR:
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| 68 | opthelp:
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| 69 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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| 70 | goto end;
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| 71 | case OPT_HELP:
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| 72 | opt_help(spkac_options);
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| 73 | ret = 0;
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| 74 | goto end;
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| 75 | case OPT_IN:
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| 76 | infile = opt_arg();
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| 77 | break;
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| 78 | case OPT_OUT:
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| 79 | outfile = opt_arg();
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| 80 | break;
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| 81 | case OPT_NOOUT:
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| 82 | noout = 1;
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| 83 | break;
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| 84 | case OPT_PUBKEY:
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| 85 | pubkey = 1;
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| 86 | break;
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| 87 | case OPT_VERIFY:
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| 88 | verify = 1;
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| 89 | break;
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| 90 | case OPT_PASSIN:
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| 91 | passinarg = opt_arg();
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| 92 | break;
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| 93 | case OPT_KEY:
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| 94 | keyfile = opt_arg();
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| 95 | break;
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| 96 | case OPT_CHALLENGE:
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| 97 | challenge = opt_arg();
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| 98 | break;
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| 99 | case OPT_SPKAC:
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| 100 | spkac = opt_arg();
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| 101 | break;
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| 102 | case OPT_SPKSECT:
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| 103 | spksect = opt_arg();
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| 104 | break;
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| 105 | case OPT_ENGINE:
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| 106 | e = setup_engine(opt_arg(), 0);
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| 107 | break;
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| 108 | }
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| 109 | }
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| 110 | argc = opt_num_rest();
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| 111 | if (argc != 0)
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| 112 | goto opthelp;
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| 113 |
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| 114 | if (!app_passwd(passinarg, NULL, &passin, NULL)) {
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| 115 | BIO_printf(bio_err, "Error getting password\n");
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| 116 | goto end;
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| 117 | }
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| 118 |
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| 119 | if (keyfile) {
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| 120 | pkey = load_key(strcmp(keyfile, "-") ? keyfile : NULL,
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| 121 | FORMAT_PEM, 1, passin, e, "private key");
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| 122 | if (!pkey) {
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| 123 | goto end;
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| 124 | }
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| 125 | spki = NETSCAPE_SPKI_new();
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| 126 | if (challenge)
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| 127 | ASN1_STRING_set(spki->spkac->challenge,
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| 128 | challenge, (int)strlen(challenge));
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| 129 | NETSCAPE_SPKI_set_pubkey(spki, pkey);
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| 130 | NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
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| 131 | spkstr = NETSCAPE_SPKI_b64_encode(spki);
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| 132 |
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| 133 | out = bio_open_default(outfile, 'w', FORMAT_TEXT);
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| 134 | if (out == NULL) {
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| 135 | OPENSSL_free(spkstr);
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| 136 | goto end;
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| 137 | }
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| 138 | BIO_printf(out, "SPKAC=%s\n", spkstr);
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| 139 | OPENSSL_free(spkstr);
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| 140 | ret = 0;
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| 141 | goto end;
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| 142 | }
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| 143 |
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| 144 | if ((conf = app_load_config(infile)) == NULL)
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| 145 | goto end;
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| 146 |
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| 147 | spkstr = NCONF_get_string(conf, spksect, spkac);
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| 148 |
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| 149 | if (spkstr == NULL) {
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| 150 | BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
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| 151 | ERR_print_errors(bio_err);
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| 152 | goto end;
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| 153 | }
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| 154 |
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| 155 | spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
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| 156 |
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| 157 | if (!spki) {
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| 158 | BIO_printf(bio_err, "Error loading SPKAC\n");
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| 159 | ERR_print_errors(bio_err);
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| 160 | goto end;
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| 161 | }
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| 162 |
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| 163 | out = bio_open_default(outfile, 'w', FORMAT_TEXT);
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| 164 | if (out == NULL)
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| 165 | goto end;
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| 166 |
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| 167 | if (!noout)
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| 168 | NETSCAPE_SPKI_print(out, spki);
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| 169 | pkey = NETSCAPE_SPKI_get_pubkey(spki);
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| 170 | if (verify) {
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| 171 | i = NETSCAPE_SPKI_verify(spki, pkey);
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| 172 | if (i > 0)
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| 173 | BIO_printf(bio_err, "Signature OK\n");
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| 174 | else {
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| 175 | BIO_printf(bio_err, "Signature Failure\n");
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| 176 | ERR_print_errors(bio_err);
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| 177 | goto end;
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| 178 | }
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| 179 | }
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| 180 | if (pubkey)
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| 181 | PEM_write_bio_PUBKEY(out, pkey);
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| 182 |
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| 183 | ret = 0;
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| 184 |
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| 185 | end:
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| 186 | NCONF_free(conf);
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| 187 | NETSCAPE_SPKI_free(spki);
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| 188 | BIO_free_all(out);
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| 189 | EVP_PKEY_free(pkey);
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| 190 | release_engine(e);
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| 191 | OPENSSL_free(passin);
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| 192 | return (ret);
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| 193 | }
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