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/* $OpenBSD: rsautl.c,v 1.10 2015/10/17 15:00:11 doug Exp $ */ |
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
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* project 2000. |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 2000 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* licensing@OpenSSL.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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#include <openssl/opensslconf.h> |
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#include <string.h> |
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#include "apps.h" |
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#include <openssl/err.h> |
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#include <openssl/pem.h> |
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#include <openssl/rsa.h> |
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#define RSA_SIGN 1 |
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#define RSA_VERIFY 2 |
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#define RSA_ENCRYPT 3 |
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#define RSA_DECRYPT 4 |
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#define KEY_PRIVKEY 1 |
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#define KEY_PUBKEY 2 |
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#define KEY_CERT 3 |
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static void usage(void); |
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int |
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rsautl_main(int argc, char **argv) |
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{ |
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BIO *in = NULL, *out = NULL; |
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char *infile = NULL, *outfile = NULL; |
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char *keyfile = NULL; |
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char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY; |
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int keyform = FORMAT_PEM; |
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char need_priv = 0, badarg = 0, rev = 0; |
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char hexdump = 0, asn1parse = 0; |
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X509 *x; |
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EVP_PKEY *pkey = NULL; |
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RSA *rsa = NULL; |
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unsigned char *rsa_in = NULL, *rsa_out = NULL, pad; |
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char *passargin = NULL, *passin = NULL; |
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int rsa_inlen, rsa_outlen = 0; |
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int keysize; |
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int ret = 1; |
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if (single_execution) { |
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if (pledge("stdio rpath wpath cpath tty", NULL) == -1) { |
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perror("pledge"); |
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exit(1); |
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} |
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} |
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argc--; |
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argv++; |
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pad = RSA_PKCS1_PADDING; |
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while (argc >= 1) { |
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if (!strcmp(*argv, "-in")) { |
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if (--argc < 1) |
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badarg = 1; |
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else |
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infile = *(++argv); |
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} else if (!strcmp(*argv, "-out")) { |
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if (--argc < 1) |
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badarg = 1; |
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else |
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outfile = *(++argv); |
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} else if (!strcmp(*argv, "-inkey")) { |
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if (--argc < 1) |
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badarg = 1; |
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else |
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keyfile = *(++argv); |
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} else if (!strcmp(*argv, "-passin")) { |
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if (--argc < 1) |
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badarg = 1; |
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else |
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passargin = *(++argv); |
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} else if (strcmp(*argv, "-keyform") == 0) { |
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if (--argc < 1) |
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badarg = 1; |
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else |
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keyform = str2fmt(*(++argv)); |
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} else if (!strcmp(*argv, "-pubin")) { |
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key_type = KEY_PUBKEY; |
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} else if (!strcmp(*argv, "-certin")) { |
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key_type = KEY_CERT; |
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} else if (!strcmp(*argv, "-asn1parse")) |
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asn1parse = 1; |
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else if (!strcmp(*argv, "-hexdump")) |
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hexdump = 1; |
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else if (!strcmp(*argv, "-raw")) |
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pad = RSA_NO_PADDING; |
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else if (!strcmp(*argv, "-oaep")) |
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pad = RSA_PKCS1_OAEP_PADDING; |
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else if (!strcmp(*argv, "-ssl")) |
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pad = RSA_SSLV23_PADDING; |
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else if (!strcmp(*argv, "-pkcs")) |
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pad = RSA_PKCS1_PADDING; |
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else if (!strcmp(*argv, "-x931")) |
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pad = RSA_X931_PADDING; |
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else if (!strcmp(*argv, "-sign")) { |
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rsa_mode = RSA_SIGN; |
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need_priv = 1; |
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} else if (!strcmp(*argv, "-verify")) |
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rsa_mode = RSA_VERIFY; |
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else if (!strcmp(*argv, "-rev")) |
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rev = 1; |
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else if (!strcmp(*argv, "-encrypt")) |
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rsa_mode = RSA_ENCRYPT; |
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else if (!strcmp(*argv, "-decrypt")) { |
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rsa_mode = RSA_DECRYPT; |
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need_priv = 1; |
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} else |
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badarg = 1; |
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if (badarg) { |
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usage(); |
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goto end; |
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} |
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argc--; |
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argv++; |
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} |
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if (need_priv && (key_type != KEY_PRIVKEY)) { |
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BIO_printf(bio_err, "A private key is needed for this operation\n"); |
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goto end; |
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} |
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if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { |
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BIO_printf(bio_err, "Error getting password\n"); |
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goto end; |
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} |
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switch (key_type) { |
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case KEY_PRIVKEY: |
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pkey = load_key(bio_err, keyfile, keyform, 0, |
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passin, "Private Key"); |
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break; |
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case KEY_PUBKEY: |
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pkey = load_pubkey(bio_err, keyfile, keyform, 0, |
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NULL, "Public Key"); |
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break; |
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case KEY_CERT: |
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x = load_cert(bio_err, keyfile, keyform, |
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NULL, "Certificate"); |
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if (x) { |
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pkey = X509_get_pubkey(x); |
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X509_free(x); |
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} |
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break; |
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} |
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if (!pkey) |
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goto end; |
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rsa = EVP_PKEY_get1_RSA(pkey); |
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EVP_PKEY_free(pkey); |
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if (!rsa) { |
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BIO_printf(bio_err, "Error getting RSA key\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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if (infile) { |
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if (!(in = BIO_new_file(infile, "rb"))) { |
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BIO_printf(bio_err, "Error Reading Input File\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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} else |
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in = BIO_new_fp(stdin, BIO_NOCLOSE); |
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if (outfile) { |
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if (!(out = BIO_new_file(outfile, "wb"))) { |
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BIO_printf(bio_err, "Error Reading Output File\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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} else { |
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out = BIO_new_fp(stdout, BIO_NOCLOSE); |
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} |
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keysize = RSA_size(rsa); |
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rsa_in = reallocarray(NULL, keysize, 2); |
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if (rsa_in == NULL) { |
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BIO_printf(bio_err, "Error allocating memory for input data\n"); |
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exit(1); |
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} |
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rsa_out = malloc(keysize); |
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if (rsa_out == NULL) { |
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BIO_printf(bio_err, "Error allocating memory for output data\n"); |
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exit(1); |
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} |
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/* Read the input data */ |
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rsa_inlen = BIO_read(in, rsa_in, keysize * 2); |
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if (rsa_inlen <= 0) { |
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BIO_printf(bio_err, "Error reading input Data\n"); |
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exit(1); |
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} |
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if (rev) { |
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int i; |
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unsigned char ctmp; |
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for (i = 0; i < rsa_inlen / 2; i++) { |
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ctmp = rsa_in[i]; |
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rsa_in[i] = rsa_in[rsa_inlen - 1 - i]; |
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rsa_in[rsa_inlen - 1 - i] = ctmp; |
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} |
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} |
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switch (rsa_mode) { |
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case RSA_VERIFY: |
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rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
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break; |
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case RSA_SIGN: |
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rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
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break; |
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case RSA_ENCRYPT: |
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rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
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break; |
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case RSA_DECRYPT: |
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rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad); |
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break; |
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} |
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if (rsa_outlen <= 0) { |
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BIO_printf(bio_err, "RSA operation error\n"); |
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ERR_print_errors(bio_err); |
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goto end; |
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} |
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ret = 0; |
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if (asn1parse) { |
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if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) { |
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ERR_print_errors(bio_err); |
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} |
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} else if (hexdump) |
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BIO_dump(out, (char *) rsa_out, rsa_outlen); |
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else |
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BIO_write(out, rsa_out, rsa_outlen); |
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end: |
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RSA_free(rsa); |
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BIO_free(in); |
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BIO_free_all(out); |
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free(rsa_in); |
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free(rsa_out); |
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free(passin); |
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return ret; |
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} |
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313 |
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static void |
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usage() |
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{ |
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BIO_printf(bio_err, "Usage: rsautl [options]\n"); |
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BIO_printf(bio_err, "-in file input file\n"); |
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BIO_printf(bio_err, "-out file output file\n"); |
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BIO_printf(bio_err, "-inkey file input key\n"); |
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BIO_printf(bio_err, "-keyform arg private key format - default PEM\n"); |
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BIO_printf(bio_err, "-pubin input is an RSA public\n"); |
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BIO_printf(bio_err, "-certin input is a certificate carrying an RSA public key\n"); |
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BIO_printf(bio_err, "-ssl use SSL v2 padding\n"); |
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BIO_printf(bio_err, "-raw use no padding\n"); |
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BIO_printf(bio_err, "-pkcs use PKCS#1 v1.5 padding (default)\n"); |
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BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n"); |
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BIO_printf(bio_err, "-sign sign with private key\n"); |
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BIO_printf(bio_err, "-verify verify with public key\n"); |
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BIO_printf(bio_err, "-encrypt encrypt with public key\n"); |
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BIO_printf(bio_err, "-decrypt decrypt with private key\n"); |
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BIO_printf(bio_err, "-hexdump hex dump output\n"); |
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} |