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openssl/apps/rsautl.c
Richard Levitte bdd58d9846 Change the way apps open their input and output files 
The different apps had the liberty to decide whether they would open their
input and output files in binary mode or not, which could be confusing if
two different apps were handling the same type of file in different ways.

The solution is to centralise the decision of low level file organisation,
and that the apps would use a selection of formats to state the intent of
the file.

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-09-06 01:35:54 +02:00

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/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2000.
*/
/* ====================================================================
* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <openssl/opensslconf.h>
#ifndef OPENSSL_NO_RSA
# include "apps.h"
# include <string.h>
# include <openssl/err.h>
# include <openssl/pem.h>
# include <openssl/rsa.h>
# define RSA_SIGN 1
# define RSA_VERIFY 2
# define RSA_ENCRYPT 3
# define RSA_DECRYPT 4
# define KEY_PRIVKEY 1
# define KEY_PUBKEY 2
# define KEY_CERT 3
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_ENGINE, OPT_IN, OPT_OUT, OPT_ASN1PARSE, OPT_HEXDUMP,
OPT_RAW, OPT_OAEP, OPT_SSL, OPT_PKCS, OPT_X931,
OPT_SIGN, OPT_VERIFY, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
OPT_PUBIN, OPT_CERTIN, OPT_INKEY, OPT_PASSIN, OPT_KEYFORM
} OPTION_CHOICE;
OPTIONS rsautl_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"in", OPT_IN, '<', "Input file"},
{"out", OPT_OUT, '>', "Output file"},
{"inkey", OPT_INKEY, '<', "Input key"},
{"keyform", OPT_KEYFORM, 'F', "Private key format - default PEM"},
{"pubin", OPT_PUBIN, '-', "Input is an RSA public"},
{"certin", OPT_CERTIN, '-', "Input is a cert carrying an RSA public key"},
{"ssl", OPT_SSL, '-', "Use SSL v2 padding"},
{"raw", OPT_RAW, '-', "Use no padding"},
{"pkcs", OPT_PKCS, '-', "Use PKCS#1 v1.5 padding (default)"},
{"oaep", OPT_OAEP, '-', "Use PKCS#1 OAEP"},
{"sign", OPT_SIGN, '-', "Sign with private key"},
{"verify", OPT_VERIFY, '-', "Verify with public key"},
{"asn1parse", OPT_ASN1PARSE, '-'},
{"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
{"x931", OPT_X931, '-', "Use ANSI X9.31 padding"},
{"rev", OPT_REV, '-'},
{"encrypt", OPT_ENCRYPT, '-', "Encrypt with public key"},
{"decrypt", OPT_DECRYPT, '-', "Decrypt with private key"},
{"passin", OPT_PASSIN, 's', "Pass phrase source"},
# ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
# endif
{NULL}
};
int rsautl_main(int argc, char **argv)
{
BIO *in = NULL, *out = NULL;
ENGINE *e = NULL;
EVP_PKEY *pkey = NULL;
RSA *rsa = NULL;
X509 *x;
char *infile = NULL, *outfile = NULL, *keyfile = NULL;
char *passinarg = NULL, *passin = NULL, *prog;
char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
unsigned char *rsa_in = NULL, *rsa_out = NULL, pad = RSA_PKCS1_PADDING;
int rsa_inlen, keyformat = FORMAT_PEM, keysize, ret = 1;
int rsa_outlen = 0, hexdump = 0, asn1parse = 0, need_priv = 0, rev = 0;
OPTION_CHOICE o;
prog = opt_init(argc, argv, rsautl_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(rsautl_options);
ret = 0;
goto end;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_ASN1PARSE:
asn1parse = 1;
break;
case OPT_HEXDUMP:
hexdump = 1;
break;
case OPT_RAW:
pad = RSA_NO_PADDING;
break;
case OPT_OAEP:
pad = RSA_PKCS1_OAEP_PADDING;
break;
case OPT_SSL:
pad = RSA_SSLV23_PADDING;
break;
case OPT_PKCS:
pad = RSA_PKCS1_PADDING;
break;
case OPT_X931:
pad = RSA_X931_PADDING;
break;
case OPT_SIGN:
rsa_mode = RSA_SIGN;
need_priv = 1;
break;
case OPT_VERIFY:
rsa_mode = RSA_VERIFY;
break;
case OPT_REV:
rev = 1;
break;
case OPT_ENCRYPT:
rsa_mode = RSA_ENCRYPT;
break;
case OPT_DECRYPT:
rsa_mode = RSA_DECRYPT;
need_priv = 1;
break;
case OPT_PUBIN:
key_type = KEY_PUBKEY;
break;
case OPT_CERTIN:
key_type = KEY_CERT;
break;
case OPT_INKEY:
keyfile = opt_arg();
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
}
}
argc = opt_num_rest();
argv = opt_rest();
if (need_priv && (key_type != KEY_PRIVKEY)) {
BIO_printf(bio_err, "A private key is needed for this operation\n");
goto end;
}
if (!app_passwd(passinarg, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if (!app_load_modules(NULL))
goto end;
/* FIXME: seed PRNG only if needed */
app_RAND_load_file(NULL, 0);
switch (key_type) {
case KEY_PRIVKEY:
pkey = load_key(keyfile, keyformat, 0, passin, e, "Private Key");
break;
case KEY_PUBKEY:
pkey = load_pubkey(keyfile, keyformat, 0, NULL, e, "Public Key");
break;
case KEY_CERT:
x = load_cert(keyfile, keyformat, NULL, e, "Certificate");
if (x) {
pkey = X509_get_pubkey(x);
X509_free(x);
}
break;
}
if (!pkey) {
return 1;
}
rsa = EVP_PKEY_get1_RSA(pkey);
EVP_PKEY_free(pkey);
if (!rsa) {
BIO_printf(bio_err, "Error getting RSA key\n");
ERR_print_errors(bio_err);
goto end;
}
in = bio_open_default(infile, 'r', FORMAT_BINARY);
if (in == NULL)
goto end;
out = bio_open_default(outfile, 'w', FORMAT_BINARY);
if (out == NULL)
goto end;
keysize = RSA_size(rsa);
rsa_in = app_malloc(keysize * 2, "hold rsa key");
rsa_out = app_malloc(keysize, "output rsa key");
/* Read the input data */
rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
if (rsa_inlen <= 0) {
BIO_printf(bio_err, "Error reading input Data\n");
goto end;
}
if (rev) {
int i;
unsigned char ctmp;
for (i = 0; i < rsa_inlen / 2; i++) {
ctmp = rsa_in[i];
rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
rsa_in[rsa_inlen - 1 - i] = ctmp;
}
}
switch (rsa_mode) {
case RSA_VERIFY:
rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
break;
case RSA_SIGN:
rsa_outlen =
RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
break;
case RSA_ENCRYPT:
rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
break;
case RSA_DECRYPT:
rsa_outlen =
RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
break;
}
if (rsa_outlen <= 0) {
BIO_printf(bio_err, "RSA operation error\n");
ERR_print_errors(bio_err);
goto end;
}
ret = 0;
if (asn1parse) {
if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
ERR_print_errors(bio_err);
}
} else if (hexdump)
BIO_dump(out, (char *)rsa_out, rsa_outlen);
else
BIO_write(out, rsa_out, rsa_outlen);
end:
RSA_free(rsa);
BIO_free(in);
BIO_free_all(out);
OPENSSL_free(rsa_in);
OPENSSL_free(rsa_out);
OPENSSL_free(passin);
return ret;
}
#else /* !OPENSSL_NO_RSA */
# if PEDANTIC
static void *dummy = &dummy;
# endif
#endif
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