/* pkcs8.c */

 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

  * project 1999-2004.

  */

 /* ====================================================================

  * Copyright (c) 1999 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 <stdio.h>

 #include <string.h>

 #include "apps.h"

 #include <openssl/pem.h>

 #include <openssl/err.h>

 #include <openssl/evp.h>

 #include <openssl/pkcs12.h>

 #define PROG pkcs8_main

 int MAIN(int, char **);

 int MAIN(int argc, char **argv)

 	{

 	ENGINE *e = NULL;

 	char **args, *infile = NULL, *outfile = NULL;

 	char *passargin = NULL, *passargout = NULL;

 	BIO *in = NULL, *out = NULL;

 	int topk8 = 0;

 	int pbe_nid = -1;

 	const EVP_CIPHER *cipher = NULL;

 	int iter = PKCS12_DEFAULT_ITER;

 	int informat, outformat;

 	int p8_broken = PKCS8_OK;

 	int nocrypt = 0;

 	X509_SIG *p8;

 	PKCS8_PRIV_KEY_INFO *p8inf;

 	EVP_PKEY *pkey=NULL;

 	char pass[50], *passin = NULL, *passout = NULL, *p8pass = NULL;

 	int badarg = 0;

 #ifndef OPENSSL_NO_ENGINE

 	char *engine=NULL;

 #endif

 	if (bio_err == NULL) 

 	bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);

 	if (!load_config(bio_err, NULL))

 		goto end;

 	informat=FORMAT_PEM;

 	outformat=FORMAT_PEM;

 	ERR_load_crypto_strings();

 	OpenSSL_add_all_algorithms();

 	args = argv + 1;

 	while (!badarg && *args && *args[0] == '-')

 		{

 		if (!strcmp(*args,"-v2"))

 			{

 			if (args[1])

 				{

 				args++;

 				cipher=EVP_get_cipherbyname(*args);

 				if (!cipher)

 					{

 					BIO_printf(bio_err,

 						 "Unknown cipher %s\n", *args);

 					badarg = 1;

 					}

 				}

 			else

 				badarg = 1;

 			}

 		else if (!strcmp(*args,"-v1"))

 			{

 			if (args[1])

 				{

 				args++;

 				pbe_nid=OBJ_txt2nid(*args);

 				if (pbe_nid == NID_undef)

 					{

 					BIO_printf(bio_err,

 						 "Unknown PBE algorithm %s\n", *args);

 					badarg = 1;

 					}

 				}

 			else

 				badarg = 1;

 			}

 		else if (!strcmp(*args,"-inform"))

 			{

 			if (args[1])

 				{

 				args++;

 				informat=str2fmt(*args);

 				}

 			else badarg = 1;

 			}

 		else if (!strcmp(*args,"-outform"))

 			{

 			if (args[1])

 				{

 				args++;

 				outformat=str2fmt(*args);

 				}

 			else badarg = 1;

 			}

 		else if (!strcmp (*args, "-topk8"))

 			topk8 = 1;

 		else if (!strcmp (*args, "-noiter"))

 			iter = 1;

 		else if (!strcmp (*args, "-nocrypt"))

 			nocrypt = 1;

 		else if (!strcmp (*args, "-nooct"))

 			p8_broken = PKCS8_NO_OCTET;

 		else if (!strcmp (*args, "-nsdb"))

 			p8_broken = PKCS8_NS_DB;

 		else if (!strcmp (*args, "-embed"))

 			p8_broken = PKCS8_EMBEDDED_PARAM;

 		else if (!strcmp(*args,"-passin"))

 			{

 			if (!args[1]) goto bad;

 			passargin= *(++args);

 			}

 		else if (!strcmp(*args,"-passout"))

 			{

 			if (!args[1]) goto bad;

 			passargout= *(++args);

 			}

 #ifndef OPENSSL_NO_ENGINE

 		else if (strcmp(*args,"-engine") == 0)

 			{

 			if (!args[1]) goto bad;

 			engine= *(++args);

 			}

 #endif

 		else if (!strcmp (*args, "-in"))

 			{

 			if (args[1])

 				{

 				args++;

 				infile = *args;

 				}

 			else badarg = 1;

 			}

 		else if (!strcmp (*args, "-out"))

 			{

 			if (args[1])

 				{

 				args++;

 				outfile = *args;

 				}

 			else badarg = 1;

 			}

 		else badarg = 1;

 		args++;

 		}

 	if (badarg)

 		{

 		bad:

 		BIO_printf(bio_err, "Usage pkcs8 [options]\n");

 		BIO_printf(bio_err, "where options are\n");

 		BIO_printf(bio_err, "-in file        input file\n");

 		BIO_printf(bio_err, "-inform X       input format (DER or PEM)\n");

 		BIO_printf(bio_err, "-passin arg     input file pass phrase source\n");

 		BIO_printf(bio_err, "-outform X      output format (DER or PEM)\n");

 		BIO_printf(bio_err, "-out file       output file\n");

 		BIO_printf(bio_err, "-passout arg    output file pass phrase source\n");

 		BIO_printf(bio_err, "-topk8          output PKCS8 file\n");

 		BIO_printf(bio_err, "-nooct          use (nonstandard) no octet format\n");

 		BIO_printf(bio_err, "-embed          use (nonstandard) embedded DSA parameters format\n");

 		BIO_printf(bio_err, "-nsdb           use (nonstandard) DSA Netscape DB format\n");

 		BIO_printf(bio_err, "-noiter         use 1 as iteration count\n");

 		BIO_printf(bio_err, "-nocrypt        use or expect unencrypted private key\n");

 		BIO_printf(bio_err, "-v2 alg         use PKCS#5 v2.0 and cipher \"alg\"\n");

 		BIO_printf(bio_err, "-v1 obj         use PKCS#5 v1.5 and cipher \"alg\"\n");

 #ifndef OPENSSL_NO_ENGINE

 		BIO_printf(bio_err," -engine e       use engine e, possibly a hardware device.\n");

 #endif

 		return 1;

 		}

 #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");

 		return 1;

 		}

 	if ((pbe_nid == -1) && !cipher)

 		pbe_nid = NID_pbeWithMD5AndDES_CBC;

 	if (infile)

 		{

 		if (!(in = BIO_new_file(infile, "rb")))

 			{

 			BIO_printf(bio_err,

 				 "Can't open input file %s\n", infile);

 			return (1);

 			}

 		}

 	else

 		in = BIO_new_fp (stdin, BIO_NOCLOSE);

 	if (outfile)

 		{

 		if (!(out = BIO_new_file (outfile, "wb")))

 			{

 			BIO_printf(bio_err,

 				 "Can't open output file %s\n", outfile);

 			return (1);

 			}

 		}

 	else

 		{

 		out = BIO_new_fp (stdout, BIO_NOCLOSE);

 #ifdef OPENSSL_SYS_VMS

 			{

 			BIO *tmpbio = BIO_new(BIO_f_linebuffer());

 			out = BIO_push(tmpbio, out);

 			}

 #endif

 		}

 	if (topk8)

 		{

 		BIO_free(in); /* Not needed in this section */

 		pkey = load_key(bio_err, infile, informat, 1,

 			passin, e, "key");

 		if (!pkey)

 			{

 			BIO_free_all(out);

 			return 1;

 			}

 		if (!(p8inf = EVP_PKEY2PKCS8_broken(pkey, p8_broken)))

 			{

 			BIO_printf(bio_err, "Error converting key\n");

 			ERR_print_errors(bio_err);

 			EVP_PKEY_free(pkey);

 			BIO_free_all(out);

 			return 1;

 			}

 		if (nocrypt)

 			{

 			if (outformat == FORMAT_PEM) 

 				PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);

 			else if (outformat == FORMAT_ASN1)

 				i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);

 			else

 				{

 				BIO_printf(bio_err, "Bad format specified for key\n");

 				PKCS8_PRIV_KEY_INFO_free(p8inf);

 				EVP_PKEY_free(pkey);

 				BIO_free_all(out);

 				return (1);

 				}

 			}

 		else

 			{

 			if (passout)

 				p8pass = passout;

 			else

 				{

 				p8pass = pass;

 				if (EVP_read_pw_string(pass, sizeof pass, "Enter Encryption Password:", 1))

 					{

 					PKCS8_PRIV_KEY_INFO_free(p8inf);

 					EVP_PKEY_free(pkey);

 					BIO_free_all(out);

 					return (1);

 					}

 				}

 			app_RAND_load_file(NULL, bio_err, 0);

 			if (!(p8 = PKCS8_encrypt(pbe_nid, cipher,

 					p8pass, strlen(p8pass),

 					NULL, 0, iter, p8inf)))

 				{

 				BIO_printf(bio_err, "Error encrypting key\n");

 				ERR_print_errors(bio_err);

 				PKCS8_PRIV_KEY_INFO_free(p8inf);

 				EVP_PKEY_free(pkey);

 				BIO_free_all(out);

 				return (1);

 				}

 			app_RAND_write_file(NULL, bio_err);

 			if (outformat == FORMAT_PEM) 

 				PEM_write_bio_PKCS8(out, p8);

 			else if (outformat == FORMAT_ASN1)

 				i2d_PKCS8_bio(out, p8);

 			else

 				{

 				BIO_printf(bio_err, "Bad format specified for key\n");

 				PKCS8_PRIV_KEY_INFO_free(p8inf);

 				EVP_PKEY_free(pkey);

 				BIO_free_all(out);

 				return (1);

 				}

 			X509_SIG_free(p8);

 			}

 		PKCS8_PRIV_KEY_INFO_free (p8inf);

 		EVP_PKEY_free(pkey);

 		BIO_free_all(out);

 		if (passin)

 			OPENSSL_free(passin);

 		if (passout)

 			OPENSSL_free(passout);

 		return (0);

 		}

 	if (nocrypt)

 		{

 		if (informat == FORMAT_PEM) 

 			p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in,NULL,NULL, NULL);

 		else if (informat == FORMAT_ASN1)

 			p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);

 		else

 			{

 			BIO_printf(bio_err, "Bad format specified for key\n");

 			return (1);

 			}

 		}

 	else

 		{

 		if (informat == FORMAT_PEM) 

 			p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);

 		else if (informat == FORMAT_ASN1)

 			p8 = d2i_PKCS8_bio(in, NULL);

 		else

 			{

 			BIO_printf(bio_err, "Bad format specified for key\n");

 			return (1);

 			}

 		if (!p8)

 			{

 			BIO_printf (bio_err, "Error reading key\n");

 			ERR_print_errors(bio_err);

 			return (1);

 			}

 		if (passin)

 			p8pass = passin;

 		else

 			{

 			p8pass = pass;

 			EVP_read_pw_string(pass, sizeof pass, "Enter Password:", 0);

 			}

 		p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass));

 		X509_SIG_free(p8);

 		}

 	if (!p8inf)

 		{

 		BIO_printf(bio_err, "Error decrypting key\n");

 		ERR_print_errors(bio_err);

 		return (1);

 		}

 	if (!(pkey = EVP_PKCS82PKEY(p8inf)))

 		{

 		BIO_printf(bio_err, "Error converting key\n");

 		ERR_print_errors(bio_err);

 		return (1);

 		}

 	if (p8inf->broken)

 		{

 		BIO_printf(bio_err, "Warning: broken key encoding: ");

 		switch (p8inf->broken)

 			{

 			case PKCS8_NO_OCTET:

 			BIO_printf(bio_err, "No Octet String in PrivateKey\n");

 			break;

 			case PKCS8_EMBEDDED_PARAM:

 			BIO_printf(bio_err, "DSA parameters included in PrivateKey\n");

 			break;

 			case PKCS8_NS_DB:

 			BIO_printf(bio_err, "DSA public key include in PrivateKey\n");

 			break;

 			default:

 			BIO_printf(bio_err, "Unknown broken type\n");

 			break;

 		}

 	}

 	PKCS8_PRIV_KEY_INFO_free(p8inf);

 	if (outformat == FORMAT_PEM) 

 		PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL, passout);

 	else if (outformat == FORMAT_ASN1)

 		i2d_PrivateKey_bio(out, pkey);

 	else

 		{

 		BIO_printf(bio_err, "Bad format specified for key\n");

 			return (1);

 		}

 	end:

 	EVP_PKEY_free(pkey);

 	BIO_free_all(out);

 	BIO_free(in);

 	if (passin)

 		OPENSSL_free(passin);

 	if (passout)

 		OPENSSL_free(passout);

 	return (0);

 	}