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openssl/apps/rsautl.c
Viktor Dukhovni 0c20802c6a Fix pkeyutl/rsautl empty encrypt-input/decrypt-output handling 
Also fix option processing in pkeyutl to allow use of (formerly)
"out-of-order" switches that were needless implementation limitations.

Handle documented "ENGINE" form with -keyform and -peerform.

Better handling of OPENSSL_NO_ENGINE and OPENSSL_NO_RSA.

RT2018

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-02-02 23:24:12 -05:00

329 lines
10 KiB
C
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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, 'E', "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_PDE, &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;
}
/* 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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