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/*
* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <openssl/opensslconf.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "apps.h"
#include "progs.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>
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
/* Do not change the order here; see case statements below */
OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
OPT_PROV_ENUM, OPT_TRADITIONAL
} OPTION_CHOICE;
const OPTIONS rsa_options[] = {
OPT_SECTION("General"),
{"help", OPT_HELP, '-', "Display this summary"},
{"check", OPT_CHECK, '-', "Verify key consistency"},
{"", OPT_CIPHER, '-', "Any supported cipher"},
#ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif
OPT_SECTION("Input"),
{"in", OPT_IN, 's', "Input file"},
{"inform", OPT_INFORM, 'f', "Input format (DER/PEM/P12/ENGINE"},
{"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
{"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
OPT_SECTION("Output"),
{"out", OPT_OUT, '>', "Output file"},
{"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
{"pubout", OPT_PUBOUT, '-', "Output a public key"},
{"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
{"noout", OPT_NOOUT, '-', "Don't print key out"},
{"text", OPT_TEXT, '-', "Print the key in text"},
{"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
{"traditional", OPT_TRADITIONAL, '-',
"Use traditional format for private keys"},
#if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
OPT_SECTION("PVK"),
{"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
{"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
{"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
#endif
OPT_PROV_OPTIONS,
{NULL}
};
int rsa_main(int argc, char **argv)
{
ENGINE *e = NULL;
BIO *out = NULL;
RSA *rsa = NULL;
EVP_PKEY *pkey = NULL;
EVP_PKEY_CTX *pctx;
const EVP_CIPHER *enc = NULL;
char *infile = NULL, *outfile = NULL, *prog;
char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
int i, private = 0;
int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
#if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
int pvk_encr = 2;
#endif
OPTION_CHOICE o;
int traditional = 0;
prog = opt_init(argc, argv, rsa_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(rsa_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUTFORM:
if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
goto opthelp;
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_PASSIN:
passinarg = opt_arg();
break;
case OPT_PASSOUT:
passoutarg = opt_arg();
break;
case OPT_ENGINE:
e = setup_engine(opt_arg(), 0);
break;
case OPT_PUBIN:
pubin = 1;
break;
case OPT_PUBOUT:
pubout = 1;
break;
case OPT_RSAPUBKEY_IN:
pubin = 2;
break;
case OPT_RSAPUBKEY_OUT:
pubout = 2;
break;
case OPT_PVK_STRONG: /* pvk_encr:= 2 */
case OPT_PVK_WEAK: /* pvk_encr:= 1 */
case OPT_PVK_NONE: /* pvk_encr:= 0 */
#if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
pvk_encr = (o - OPT_PVK_NONE);
#endif
break;
case OPT_NOOUT:
noout = 1;
break;
case OPT_TEXT:
text = 1;
break;
case OPT_MODULUS:
modulus = 1;
break;
case OPT_CHECK:
check = 1;
break;
case OPT_CIPHER:
if (!opt_cipher(opt_unknown(), &enc))
goto opthelp;
break;
case OPT_PROV_CASES:
if (!opt_provider(o))
goto end;
break;
case OPT_TRADITIONAL:
traditional = 1;
break;
}
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;
if (!app_passwd(passinarg, passoutarg, &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;
}
if (pubin) {
int tmpformat = -1;
if (pubin == 2) {
if (informat == FORMAT_PEM)
tmpformat = FORMAT_PEMRSA;
else if (informat == FORMAT_ASN1)
tmpformat = FORMAT_ASN1RSA;
} else {
tmpformat = informat;
}
pkey = load_pubkey(infile, tmpformat, 1, passin, e, "public key");
} else {
pkey = load_key(infile, informat, 1, passin, e, "private key");
}
if (pkey != NULL)
rsa = EVP_PKEY_get1_RSA(pkey);
if (rsa == NULL) {
ERR_print_errors(bio_err);
goto end;
}
out = bio_open_owner(outfile, outformat, private);
if (out == NULL)
goto end;
if (text) {
assert(pubin || private);
if ((pubin && EVP_PKEY_print_public(out, pkey, 0, NULL) <= 0)
|| (!pubin && EVP_PKEY_print_private(out, pkey, 0, NULL) <= 0)) {
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