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openssl/apps/rsa.c

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/* apps/rsa.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <openssl/opensslconf.h>
#ifndef OPENSSL_NO_RSA
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include <time.h>
# include "apps.h"
# include <openssl/bio.h>
# include <openssl/err.h>
# include <openssl/rsa.h>
# include <openssl/evp.h>
# include <openssl/x509.h>
# include <openssl/pem.h>
# include <openssl/bn.h>
# undef PROG
# define PROG rsa_main
/*-
* -inform arg - input format - default PEM (one of DER, NET or PEM)
* -outform arg - output format - default PEM
* -in arg - input file - default stdin
* -out arg - output file - default stdout
* -des - encrypt output if PEM format with DES in cbc mode
* -des3 - encrypt output if PEM format
* -idea - encrypt output if PEM format
* -seed - encrypt output if PEM format
* -aes128 - encrypt output if PEM format
* -aes192 - encrypt output if PEM format
* -aes256 - encrypt output if PEM format
* -camellia128 - encrypt output if PEM format
* -camellia192 - encrypt output if PEM format
* -camellia256 - encrypt output if PEM format
* -text - print a text version
* -modulus - print the RSA key modulus
* -check - verify key consistency
* -pubin - Expect a public key in input file.
* -pubout - Output a public key.
*/
int MAIN(int, char **);
int MAIN(int argc, char **argv)
{
ENGINE *e = NULL;
int ret = 1;
RSA *rsa = NULL;
int i, badops = 0, sgckey = 0;
const EVP_CIPHER *enc = NULL;
BIO *out = NULL;
int informat, outformat, text = 0, check = 0, noout = 0;
int pubin = 0, pubout = 0;
char *infile, *outfile, *prog;
char *passargin = NULL, *passargout = NULL;
char *passin = NULL, *passout = NULL;
# ifndef OPENSSL_NO_ENGINE
char *engine = NULL;
# endif
int modulus = 0;
int pvk_encr = 2;
apps_startup();
if (bio_err == NULL)
if ((bio_err = BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
if (!load_config(bio_err, NULL))
goto end;
infile = NULL;
outfile = NULL;
informat = FORMAT_PEM;
outformat = FORMAT_PEM;
prog = argv[0];
argc--;
argv++;
while (argc >= 1) {
if (strcmp(*argv, "-inform") == 0) {
if (--argc < 1)
goto bad;
informat = str2fmt(*(++argv));
} else if (strcmp(*argv, "-outform") == 0) {
if (--argc < 1)
goto bad;
outformat = str2fmt(*(++argv));
} else if (strcmp(*argv, "-in") == 0) {
if (--argc < 1)
goto bad;
infile = *(++argv);
} else if (strcmp(*argv, "-out") == 0) {
if (--argc < 1)
goto bad;
outfile = *(++argv);
} else if (strcmp(*argv, "-passin") == 0) {
if (--argc < 1)
goto bad;
passargin = *(++argv);
} else if (strcmp(*argv, "-passout") == 0) {
if (--argc < 1)
goto bad;
passargout = *(++argv);
}
# ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv, "-engine") == 0) {
if (--argc < 1)
goto bad;
engine = *(++argv);
}
# endif
else if (strcmp(*argv, "-sgckey") == 0)
sgckey = 1;
else if (strcmp(*argv, "-pubin") == 0)
pubin = 1;
else if (strcmp(*argv, "-pubout") == 0)
pubout = 1;
else if (strcmp(*argv, "-RSAPublicKey_in") == 0)
pubin = 2;
else if (strcmp(*argv, "-RSAPublicKey_out") == 0)
pubout = 2;
else if (strcmp(*argv, "-pvk-strong") == 0)
pvk_encr = 2;
else if (strcmp(*argv, "-pvk-weak") == 0)
pvk_encr = 1;
else if (strcmp(*argv, "-pvk-none") == 0)
pvk_encr = 0;
else if (strcmp(*argv, "-noout") == 0)
noout = 1;
else if (strcmp(*argv, "-text") == 0)
text = 1;
else if (strcmp(*argv, "-modulus") == 0)
modulus = 1;
else if (strcmp(*argv, "-check") == 0)
check = 1;
else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) {
BIO_printf(bio_err, "unknown option %s\n", *argv);
badops = 1;
break;
}
argc--;
argv++;
}
if (badops) {
bad:
BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
BIO_printf(bio_err, "where options are\n");
BIO_printf(bio_err,
" -inform arg input format - one of DER NET PEM\n");
BIO_printf(bio_err,
" -outform arg output format - one of DER NET PEM\n");
BIO_printf(bio_err, " -in arg input file\n");
BIO_printf(bio_err, " -sgckey Use IIS SGC key format\n");
BIO_printf(bio_err,
" -passin arg input file pass phrase source\n");
BIO_printf(bio_err, " -out arg output file\n");
BIO_printf(bio_err,
" -passout arg output file pass phrase source\n");
BIO_printf(bio_err,
" -des encrypt PEM output with cbc des\n");
BIO_printf(bio_err,
" -des3 encrypt PEM output with ede cbc des using 168 bit key\n");
# ifndef OPENSSL_NO_IDEA
BIO_printf(bio_err,
" -idea encrypt PEM output with cbc idea\n");
# endif
# ifndef OPENSSL_NO_SEED
BIO_printf(bio_err,
" -seed encrypt PEM output with cbc seed\n");
# endif
# ifndef OPENSSL_NO_AES
BIO_printf(bio_err, " -aes128, -aes192, -aes256\n");
BIO_printf(bio_err,
" encrypt PEM output with cbc aes\n");
# endif
# ifndef OPENSSL_NO_CAMELLIA
BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n");
BIO_printf(bio_err,
" encrypt PEM output with cbc camellia\n");
# endif
BIO_printf(bio_err, " -text print the key in text\n");
BIO_printf(bio_err, " -noout don't print key out\n");
BIO_printf(bio_err, " -modulus print the RSA key modulus\n");
BIO_printf(bio_err, " -check verify key consistency\n");
BIO_printf(bio_err,
" -pubin expect a public key in input file\n");
BIO_printf(bio_err, " -pubout output a public key\n");
# ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err,
" -engine e use engine e, possibly a hardware device.\n");
# endif
goto end;
}
ERR_load_crypto_strings();
# ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine, 0);
# endif
if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
BIO_printf(bio_err, "Error getting passwords\n");
goto end;
}
if (check && pubin) {
BIO_printf(bio_err, "Only private keys can be checked\n");
goto end;
}
out = BIO_new(BIO_s_file());
{
EVP_PKEY *pkey;
if (pubin) {
int tmpformat = -1;
if (pubin == 2) {
if (informat == FORMAT_PEM)
tmpformat = FORMAT_PEMRSA;
else if (informat == FORMAT_ASN1)
tmpformat = FORMAT_ASN1RSA;
} else if (informat == FORMAT_NETSCAPE && sgckey)
tmpformat = FORMAT_IISSGC;
else
tmpformat = informat;
pkey = load_pubkey(bio_err, infile, tmpformat, 1,
passin, e, "Public Key");
} else
pkey = load_key(bio_err, infile,
(informat == FORMAT_NETSCAPE && sgckey ?
FORMAT_IISSGC : informat), 1,
passin, e, "Private Key");
if (pkey != NULL)
rsa = EVP_PKEY_get1_RSA(pkey);
EVP_PKEY_free(pkey);
}
if (rsa == NULL) {
ERR_print_errors(bio_err);
goto end;
}
if (outfile == NULL) {
BIO_set_fp(out, stdout, BIO_NOCLOSE);
# ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
# endif
} else {
if (BIO_write_filename(out, outfile) <= 0) {
perror(outfile);
goto end;
}
}
if (text)
if (!RSA_print(out, rsa, 0)) {
perror(outfile);
ERR_print_errors(bio_err);
goto end;
}
if (modulus) {
BIO_printf(out, "Modulus=");
BN_print(out, rsa->n);
BIO_printf(out, "\n");
}
if (check) {
int r = RSA_check_key(rsa);
if (r == 1)
BIO_printf(out, "RSA key ok\n");
else if (r == 0) {
unsigned long err;
while ((err = ERR_peek_error()) != 0 &&
ERR_GET_LIB(err) == ERR_LIB_RSA &&
ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY &&
ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
BIO_printf(out, "RSA key error: %s\n",
ERR_reason_error_string(err));
ERR_get_error(); /* remove e from error stack */
}
}
if (r == -1 || ERR_peek_error() != 0) { /* should happen only if r ==
* -1 */
ERR_print_errors(bio_err);
goto end;
}
}
if (noout) {
ret = 0;
goto end;
}
BIO_printf(bio_err, "writing RSA key\n");
if (outformat == FORMAT_ASN1) {
if (pubout || pubin) {
if (pubout == 2)
i = i2d_RSAPublicKey_bio(out, rsa);
else
i = i2d_RSA_PUBKEY_bio(out, rsa);
} else
i = i2d_RSAPrivateKey_bio(out, rsa);
}
# ifndef OPENSSL_NO_RC4
else if (outformat == FORMAT_NETSCAPE) {
unsigned char *p, *pp;
int size;
i = 1;
size = i2d_RSA_NET(rsa, NULL, NULL, sgckey);
if ((p = (unsigned char *)OPENSSL_malloc(size)) == NULL) {
BIO_printf(bio_err, "Memory allocation failure\n");
goto end;
}
pp = p;
i2d_RSA_NET(rsa, &p, NULL, sgckey);
BIO_write(out, (char *)pp, size);
OPENSSL_free(pp);
}
# endif
else if (outformat == FORMAT_PEM) {
if (pubout || pubin) {
if (pubout == 2)
i = PEM_write_bio_RSAPublicKey(out, rsa);
else
i = PEM_write_bio_RSA_PUBKEY(out, rsa);
} else
i = PEM_write_bio_RSAPrivateKey(out, rsa,
enc, NULL, 0, NULL, passout);
# if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
} else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
EVP_PKEY *pk;
pk = EVP_PKEY_new();
EVP_PKEY_set1_RSA(pk, rsa);
if (outformat == FORMAT_PVK)
i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
else if (pubin || pubout)
i = i2b_PublicKey_bio(out, pk);
else
i = i2b_PrivateKey_bio(out, pk);
EVP_PKEY_free(pk);
# endif
} else {
BIO_printf(bio_err, "bad output format specified for outfile\n");
goto end;
}
if (i <= 0) {
BIO_printf(bio_err, "unable to write key\n");
ERR_print_errors(bio_err);
} else
ret = 0;
end:
# ifndef OPENSSL_NO_ENGINE
if (e != NULL)
release_engine(e);
# endif
if (out != NULL)
BIO_free_all(out);
if (rsa != NULL)
RSA_free(rsa);
if (passin)
OPENSSL_free(passin);
if (passout)
OPENSSL_free(passout);
apps_shutdown();
OPENSSL_EXIT(ret);
}
#else /* !OPENSSL_NO_RSA */
# if PEDANTIC
static void *dummy = &dummy;
# endif
#endif
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