[331] | 1 | /*
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| 2 | * Copyright 1995-2016 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 <openssl/opensslconf.h>
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| 11 | #ifdef OPENSSL_NO_RSA
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| 12 | NON_EMPTY_TRANSLATION_UNIT
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| 13 | #else
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| 14 |
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| 15 | # include <stdio.h>
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| 16 | # include <stdlib.h>
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| 17 | # include <string.h>
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| 18 | # include <time.h>
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| 19 | # include "apps.h"
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| 20 | # include <openssl/bio.h>
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| 21 | # include <openssl/err.h>
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| 22 | # include <openssl/rsa.h>
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| 23 | # include <openssl/evp.h>
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| 24 | # include <openssl/x509.h>
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| 25 | # include <openssl/pem.h>
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| 26 | # include <openssl/bn.h>
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| 27 |
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| 28 | typedef enum OPTION_choice {
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| 29 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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| 30 | OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
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| 31 | OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
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| 32 | OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
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| 33 | /* Do not change the order here; see case statements below */
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| 34 | OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
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| 35 | OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER
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| 36 | } OPTION_CHOICE;
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| 37 |
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| 38 | OPTIONS rsa_options[] = {
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| 39 | {"help", OPT_HELP, '-', "Display this summary"},
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| 40 | {"inform", OPT_INFORM, 'f', "Input format, one of DER NET PEM"},
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| 41 | {"outform", OPT_OUTFORM, 'f', "Output format, one of DER NET PEM PVK"},
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| 42 | {"in", OPT_IN, 's', "Input file"},
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| 43 | {"out", OPT_OUT, '>', "Output file"},
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| 44 | {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
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| 45 | {"pubout", OPT_PUBOUT, '-', "Output a public key"},
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| 46 | {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
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| 47 | {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
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| 48 | {"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
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| 49 | {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
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| 50 | {"noout", OPT_NOOUT, '-', "Don't print key out"},
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| 51 | {"text", OPT_TEXT, '-', "Print the key in text"},
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| 52 | {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
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| 53 | {"check", OPT_CHECK, '-', "Verify key consistency"},
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| 54 | {"", OPT_CIPHER, '-', "Any supported cipher"},
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| 55 | # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
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| 56 | {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
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| 57 | {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
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| 58 | {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
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| 59 | # endif
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| 60 | # ifndef OPENSSL_NO_ENGINE
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| 61 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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| 62 | # endif
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| 63 | {NULL}
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| 64 | };
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| 65 |
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| 66 | int rsa_main(int argc, char **argv)
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| 67 | {
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| 68 | ENGINE *e = NULL;
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| 69 | BIO *out = NULL;
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| 70 | RSA *rsa = NULL;
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| 71 | const EVP_CIPHER *enc = NULL;
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| 72 | char *infile = NULL, *outfile = NULL, *prog;
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| 73 | char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
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| 74 | int i, private = 0;
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| 75 | int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
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| 76 | int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
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| 77 | # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
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| 78 | int pvk_encr = 2;
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| 79 | # endif
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| 80 | OPTION_CHOICE o;
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| 81 |
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| 82 | prog = opt_init(argc, argv, rsa_options);
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| 83 | while ((o = opt_next()) != OPT_EOF) {
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| 84 | switch (o) {
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| 85 | case OPT_EOF:
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| 86 | case OPT_ERR:
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| 87 | opthelp:
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| 88 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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| 89 | goto end;
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| 90 | case OPT_HELP:
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| 91 | opt_help(rsa_options);
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| 92 | ret = 0;
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| 93 | goto end;
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| 94 | case OPT_INFORM:
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| 95 | if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
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| 96 | goto opthelp;
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| 97 | break;
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| 98 | case OPT_IN:
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| 99 | infile = opt_arg();
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| 100 | break;
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| 101 | case OPT_OUTFORM:
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| 102 | if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
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| 103 | goto opthelp;
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| 104 | break;
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| 105 | case OPT_OUT:
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| 106 | outfile = opt_arg();
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| 107 | break;
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| 108 | case OPT_PASSIN:
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| 109 | passinarg = opt_arg();
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| 110 | break;
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| 111 | case OPT_PASSOUT:
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| 112 | passoutarg = opt_arg();
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| 113 | break;
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| 114 | case OPT_ENGINE:
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| 115 | e = setup_engine(opt_arg(), 0);
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| 116 | break;
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| 117 | case OPT_PUBIN:
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| 118 | pubin = 1;
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| 119 | break;
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| 120 | case OPT_PUBOUT:
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| 121 | pubout = 1;
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| 122 | break;
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| 123 | case OPT_RSAPUBKEY_IN:
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| 124 | pubin = 2;
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| 125 | break;
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| 126 | case OPT_RSAPUBKEY_OUT:
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| 127 | pubout = 2;
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| 128 | break;
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| 129 | case OPT_PVK_STRONG: /* pvk_encr:= 2 */
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| 130 | case OPT_PVK_WEAK: /* pvk_encr:= 1 */
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| 131 | case OPT_PVK_NONE: /* pvk_encr:= 0 */
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| 132 | # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
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| 133 | pvk_encr = (o - OPT_PVK_NONE);
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| 134 | # endif
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| 135 | break;
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| 136 | case OPT_NOOUT:
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| 137 | noout = 1;
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| 138 | break;
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| 139 | case OPT_TEXT:
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| 140 | text = 1;
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| 141 | break;
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| 142 | case OPT_MODULUS:
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| 143 | modulus = 1;
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| 144 | break;
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| 145 | case OPT_CHECK:
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| 146 | check = 1;
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| 147 | break;
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| 148 | case OPT_CIPHER:
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| 149 | if (!opt_cipher(opt_unknown(), &enc))
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| 150 | goto opthelp;
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| 151 | break;
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| 152 | }
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| 153 | }
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| 154 | argc = opt_num_rest();
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| 155 | if (argc != 0)
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| 156 | goto opthelp;
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| 157 |
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| 158 | private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;
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| 159 |
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| 160 | if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
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| 161 | BIO_printf(bio_err, "Error getting passwords\n");
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| 162 | goto end;
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| 163 | }
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| 164 | if (check && pubin) {
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| 165 | BIO_printf(bio_err, "Only private keys can be checked\n");
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| 166 | goto end;
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| 167 | }
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| 168 |
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| 169 | {
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| 170 | EVP_PKEY *pkey;
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| 171 |
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| 172 | if (pubin) {
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| 173 | int tmpformat = -1;
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| 174 | if (pubin == 2) {
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| 175 | if (informat == FORMAT_PEM)
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| 176 | tmpformat = FORMAT_PEMRSA;
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| 177 | else if (informat == FORMAT_ASN1)
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| 178 | tmpformat = FORMAT_ASN1RSA;
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| 179 | } else
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| 180 | tmpformat = informat;
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| 181 |
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| 182 | pkey = load_pubkey(infile, tmpformat, 1, passin, e, "Public Key");
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| 183 | } else
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| 184 | pkey = load_key(infile, informat, 1, passin, e, "Private Key");
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| 185 |
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| 186 | if (pkey != NULL)
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| 187 | rsa = EVP_PKEY_get1_RSA(pkey);
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| 188 | EVP_PKEY_free(pkey);
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| 189 | }
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| 190 |
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| 191 | if (rsa == NULL) {
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| 192 | ERR_print_errors(bio_err);
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| 193 | goto end;
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| 194 | }
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| 195 |
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| 196 | out = bio_open_owner(outfile, outformat, private);
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| 197 | if (out == NULL)
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| 198 | goto end;
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| 199 |
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| 200 | if (text) {
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| 201 | assert(pubin || private);
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| 202 | if (!RSA_print(out, rsa, 0)) {
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| 203 | perror(outfile);
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| 204 | ERR_print_errors(bio_err);
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| 205 | goto end;
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| 206 | }
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| 207 | }
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| 208 |
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| 209 | if (modulus) {
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| 210 | const BIGNUM *n;
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| 211 | RSA_get0_key(rsa, &n, NULL, NULL);
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| 212 | BIO_printf(out, "Modulus=");
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| 213 | BN_print(out, n);
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| 214 | BIO_printf(out, "\n");
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| 215 | }
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| 216 |
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| 217 | if (check) {
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| 218 | int r = RSA_check_key(rsa);
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| 219 |
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| 220 | if (r == 1)
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| 221 | BIO_printf(out, "RSA key ok\n");
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| 222 | else if (r == 0) {
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| 223 | unsigned long err;
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| 224 |
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| 225 | while ((err = ERR_peek_error()) != 0 &&
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| 226 | ERR_GET_LIB(err) == ERR_LIB_RSA &&
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| 227 | ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY &&
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| 228 | ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
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| 229 | BIO_printf(out, "RSA key error: %s\n",
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| 230 | ERR_reason_error_string(err));
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| 231 | ERR_get_error(); /* remove e from error stack */
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| 232 | }
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| 233 | } else if (r == -1) {
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| 234 | ERR_print_errors(bio_err);
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| 235 | goto end;
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| 236 | }
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| 237 | }
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| 238 |
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| 239 | if (noout) {
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| 240 | ret = 0;
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| 241 | goto end;
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| 242 | }
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| 243 | BIO_printf(bio_err, "writing RSA key\n");
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| 244 | if (outformat == FORMAT_ASN1) {
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| 245 | if (pubout || pubin) {
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| 246 | if (pubout == 2)
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| 247 | i = i2d_RSAPublicKey_bio(out, rsa);
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| 248 | else
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| 249 | i = i2d_RSA_PUBKEY_bio(out, rsa);
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| 250 | } else {
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| 251 | assert(private);
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| 252 | i = i2d_RSAPrivateKey_bio(out, rsa);
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| 253 | }
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| 254 | }
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| 255 | else if (outformat == FORMAT_PEM) {
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| 256 | if (pubout || pubin) {
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| 257 | if (pubout == 2)
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| 258 | i = PEM_write_bio_RSAPublicKey(out, rsa);
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| 259 | else
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| 260 | i = PEM_write_bio_RSA_PUBKEY(out, rsa);
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| 261 | } else {
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| 262 | assert(private);
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| 263 | i = PEM_write_bio_RSAPrivateKey(out, rsa,
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| 264 | enc, NULL, 0, NULL, passout);
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| 265 | }
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| 266 | # ifndef OPENSSL_NO_DSA
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| 267 | } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
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| 268 | EVP_PKEY *pk;
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| 269 | pk = EVP_PKEY_new();
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| 270 | EVP_PKEY_set1_RSA(pk, rsa);
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| 271 | if (outformat == FORMAT_PVK) {
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| 272 | if (pubin) {
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| 273 | BIO_printf(bio_err, "PVK form impossible with public key input\n");
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| 274 | EVP_PKEY_free(pk);
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| 275 | goto end;
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| 276 | }
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| 277 | assert(private);
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| 278 | # ifdef OPENSSL_NO_RC4
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| 279 | BIO_printf(bio_err, "PVK format not supported\n");
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| 280 | EVP_PKEY_free(pk);
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| 281 | goto end;
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| 282 | # else
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| 283 | i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
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| 284 | # endif
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| 285 | } else if (pubin || pubout) {
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| 286 | i = i2b_PublicKey_bio(out, pk);
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| 287 | } else {
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| 288 | assert(private);
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| 289 | i = i2b_PrivateKey_bio(out, pk);
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| 290 | }
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| 291 | EVP_PKEY_free(pk);
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| 292 | # endif
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| 293 | } else {
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| 294 | BIO_printf(bio_err, "bad output format specified for outfile\n");
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| 295 | goto end;
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| 296 | }
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| 297 | if (i <= 0) {
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| 298 | BIO_printf(bio_err, "unable to write key\n");
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| 299 | ERR_print_errors(bio_err);
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| 300 | } else
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| 301 | ret = 0;
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| 302 | end:
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| 303 | release_engine(e);
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| 304 | BIO_free_all(out);
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| 305 | RSA_free(rsa);
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| 306 | OPENSSL_free(passin);
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| 307 | OPENSSL_free(passout);
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| 308 | return (ret);
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| 309 | }
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| 310 | #endif
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