text: /* ssl/ssl_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 <stdio.h>
  #include "ssl_locl.h"
  #include <openssl/bio.h>
  #include <openssl/objects.h>
  #include <openssl/evp.h>
  #include <openssl/x509.h>
  #include <openssl/pem.h>
  
  static int ssl_set_cert(CERT *c, X509 *x509);
  static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey);
  int SSL_use_certificate(SSL *ssl, X509 *x)
  	{
  	if (x == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
  		return(0);
  		}
  	if (!ssl_cert_inst(&ssl->cert))
  		{
  		SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
  		return(0);
  		}
  	return(ssl_set_cert(ssl->cert,x));
  	}
  
  #ifndef OPENSSL_NO_STDIO
  int SSL_use_certificate_file(SSL *ssl, const char *file, int type)
  	{
  	int j;
  	BIO *in;
  	int ret=0;
  	X509 *x=NULL;
  
  	in=BIO_new(BIO_s_file_internal());
  	if (in == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
  		goto end;
  		}
  
  	if (BIO_read_filename(in,file) <= 0)
  		{
  		SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
  		goto end;
  		}
  	if (type == SSL_FILETYPE_ASN1)
  		{
  		j=ERR_R_ASN1_LIB;
  		x=d2i_X509_bio(in,NULL);
  		}
  	else if (type == SSL_FILETYPE_PEM)
  		{
  		j=ERR_R_PEM_LIB;
  		x=PEM_read_bio_X509(in,NULL,ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
  		}
  	else
  		{
  		SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
  		goto end;
  		}
  
  	if (x == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,j);
  		goto end;
  		}
  
  	ret=SSL_use_certificate(ssl,x);
  end:
  	if (x != NULL) X509_free(x);
  	if (in != NULL) BIO_free(in);
  	return(ret);
  	}
  #endif
  
  int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len)
  	{
  	X509 *x;
  	int ret;
  
  	x=d2i_X509(NULL,&d,(long)len);
  	if (x == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
  		return(0);
  		}
  
  	ret=SSL_use_certificate(ssl,x);
  	X509_free(x);
  	return(ret);
  	}
  
  #ifndef OPENSSL_NO_RSA
  int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa)
  	{
  	EVP_PKEY *pkey;
  	int ret;
  
  	if (rsa == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
  		return(0);
  		}
  	if (!ssl_cert_inst(&ssl->cert))
  		{
  		SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
  		return(0);
  		}
  	if ((pkey=EVP_PKEY_new()) == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
  		return(0);
  		}
  
  	RSA_up_ref(rsa);
  	EVP_PKEY_assign_RSA(pkey,rsa);
  
  	ret=ssl_set_pkey(ssl->cert,pkey);
  	EVP_PKEY_free(pkey);
  	return(ret);
  	}
  #endif
  
  static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey)
  	{
  	int i;
  	/* Special case for DH: check two DH certificate types for a match.
  	 * This means for DH certificates we must set the certificate first.
  	 */
  	if (pkey->type == EVP_PKEY_DH)
  		{
  		X509 *x;
  		i = -1;
  		x = c->pkeys[SSL_PKEY_DH_RSA].x509;
  		if (x && X509_check_private_key(x, pkey))
  				i = SSL_PKEY_DH_RSA;
  		x = c->pkeys[SSL_PKEY_DH_DSA].x509;
  		if (i == -1 && x && X509_check_private_key(x, pkey))
  				i = SSL_PKEY_DH_DSA;
  		ERR_clear_error();
  		}
  	else 
  		i=ssl_cert_type(NULL,pkey);
  	if (i < 0)
  		{
  		SSLerr(SSL_F_SSL_SET_PKEY,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
  		return(0);
  		}
  
  	if (c->pkeys[i].x509 != NULL)
  		{
  		EVP_PKEY *pktmp;
  		pktmp =	X509_get_pubkey(c->pkeys[i].x509);
  		EVP_PKEY_copy_parameters(pktmp,pkey);
  		EVP_PKEY_free(pktmp);
  		ERR_clear_error();
  
  #ifndef OPENSSL_NO_RSA
  		/* Don't check the public/private key, this is mostly
  		 * for smart cards. */
  		if ((pkey->type == EVP_PKEY_RSA) &&
  			(RSA_flags(pkey->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK))
  			;
  		else
  #endif
  		if (!X509_check_private_key(c->pkeys[i].x509,pkey))
  			{
  			X509_free(c->pkeys[i].x509);
  			c->pkeys[i].x509 = NULL;
  			return 0;
  			}
  		}
  
  	if (c->pkeys[i].privatekey != NULL)
  		EVP_PKEY_free(c->pkeys[i].privatekey);
  	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
  	c->pkeys[i].privatekey=pkey;
  	c->key= &(c->pkeys[i]);
  
  	c->valid=0;
  	return(1);
  	}
  
  #ifndef OPENSSL_NO_RSA
  #ifndef OPENSSL_NO_STDIO
  int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type)
  	{
  	int j,ret=0;
  	BIO *in;
  	RSA *rsa=NULL;
  
  	in=BIO_new(BIO_s_file_internal());
  	if (in == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
  		goto end;
  		}
  
  	if (BIO_read_filename(in,file) <= 0)
  		{
  		SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
  		goto end;
  		}
  	if	(type == SSL_FILETYPE_ASN1)
  		{
  		j=ERR_R_ASN1_LIB;
  		rsa=d2i_RSAPrivateKey_bio(in,NULL);
  		}
  	else if (type == SSL_FILETYPE_PEM)
  		{
  		j=ERR_R_PEM_LIB;
  		rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
  			ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
  		}
  	else
  		{
  		SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
  		goto end;
  		}
  	if (rsa == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,j);
  		goto end;
  		}
  	ret=SSL_use_RSAPrivateKey(ssl,rsa);
  	RSA_free(rsa);
  end:
  	if (in != NULL) BIO_free(in);
  	return(ret);
  	}
  #endif
  
  int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, unsigned char *d, long len)
  	{
  	int ret;
  	const unsigned char *p;
  	RSA *rsa;
  
  	p=d;
  	if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
  		return(0);
  		}
  
  	ret=SSL_use_RSAPrivateKey(ssl,rsa);
  	RSA_free(rsa);
  	return(ret);
  	}
  #endif /* !OPENSSL_NO_RSA */
  
  int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
  	{
  	int ret;
  
  	if (pkey == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
  		return(0);
  		}
  	if (!ssl_cert_inst(&ssl->cert))
  		{
  		SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
  		return(0);
  		}
  	ret=ssl_set_pkey(ssl->cert,pkey);
  	return(ret);
  	}
  
  #ifndef OPENSSL_NO_STDIO
  int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type)
  	{
  	int j,ret=0;
  	BIO *in;
  	EVP_PKEY *pkey=NULL;
  
  	in=BIO_new(BIO_s_file_internal());
  	if (in == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
  		goto end;
  		}
  
  	if (BIO_read_filename(in,file) <= 0)
  		{
  		SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
  		goto end;
  		}
  	if (type == SSL_FILETYPE_PEM)
  		{
  		j=ERR_R_PEM_LIB;
  		pkey=PEM_read_bio_PrivateKey(in,NULL,
  			ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
  		}
  	else if (type == SSL_FILETYPE_ASN1)
  		{
  		j = ERR_R_ASN1_LIB;
  		pkey = d2i_PrivateKey_bio(in,NULL);
  		}
  	else
  		{
  		SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
  		goto end;
  		}
  	if (pkey == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,j);
  		goto end;
  		}
  	ret=SSL_use_PrivateKey(ssl,pkey);
  	EVP_PKEY_free(pkey);
  end:
  	if (in != NULL) BIO_free(in);
  	return(ret);
  	}
  #endif
  
  int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const unsigned char *d, long len)
  	{
  	int ret;
  	const unsigned char *p;
  	EVP_PKEY *pkey;
  
  	p=d;
  	if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
  		{
  		SSLerr(SSL_F_SSL_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
  		return(0);
  		}
  
  	ret=SSL_use_PrivateKey(ssl,pkey);
  	EVP_PKEY_free(pkey);
  	return(ret);
  	}
  
  int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
  	{
  	if (x == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
  		return(0);
  		}
  	if (!ssl_cert_inst(&ctx->cert))
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
  		return(0);
  		}
  	return(ssl_set_cert(ctx->cert, x));
  	}
  
  static int ssl_set_cert(CERT *c, X509 *x)
  	{
  	EVP_PKEY *pkey;
  	int i;
  
  	pkey=X509_get_pubkey(x);
  	if (pkey == NULL)
  		{
  		SSLerr(SSL_F_SSL_SET_CERT,SSL_R_X509_LIB);
  		return(0);
  		}
  
  	i=ssl_cert_type(x,pkey);
  	if (i < 0)
  		{
  		SSLerr(SSL_F_SSL_SET_CERT,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
  		EVP_PKEY_free(pkey);
  		return(0);
  		}
  
  	if (c->pkeys[i].privatekey != NULL)
  		{
  		EVP_PKEY_copy_parameters(pkey,c->pkeys[i].privatekey);
  		ERR_clear_error();
  
  #ifndef OPENSSL_NO_RSA
  		/* Don't check the public/private key, this is mostly
  		 * for smart cards. */
  		if ((c->pkeys[i].privatekey->type == EVP_PKEY_RSA) &&
  			(RSA_flags(c->pkeys[i].privatekey->pkey.rsa) &
  			 RSA_METHOD_FLAG_NO_CHECK))
  			 ;
  		else
  #endif /* OPENSSL_NO_RSA */
  		if (!X509_check_private_key(x,c->pkeys[i].privatekey))
  			{
  			/* don't fail for a cert/key mismatch, just free
  			 * current private key (when switching to a different
  			 * cert & key, first this function should be used,
  			 * then ssl_set_pkey */
  			EVP_PKEY_free(c->pkeys[i].privatekey);
  			c->pkeys[i].privatekey=NULL;
  			/* clear error queue */
  			ERR_clear_error();
  			}
  		}
  
  	EVP_PKEY_free(pkey);
  
  	if (c->pkeys[i].x509 != NULL)
  		X509_free(c->pkeys[i].x509);
  	CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
  	c->pkeys[i].x509=x;
  	c->key= &(c->pkeys[i]);
  
  	c->valid=0;
  	return(1);
  	}
  
  #ifndef OPENSSL_NO_STDIO
  int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
  	{
  	int j;
  	BIO *in;
  	int ret=0;
  	X509 *x=NULL;
  
  	in=BIO_new(BIO_s_file_internal());
  	if (in == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
  		goto end;
  		}
  
  	if (BIO_read_filename(in,file) <= 0)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
  		goto end;
  		}
  	if (type == SSL_FILETYPE_ASN1)
  		{
  		j=ERR_R_ASN1_LIB;
  		x=d2i_X509_bio(in,NULL);
  		}
  	else if (type == SSL_FILETYPE_PEM)
  		{
  		j=ERR_R_PEM_LIB;
  		x=PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
  		}
  	else
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
  		goto end;
  		}
  
  	if (x == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,j);
  		goto end;
  		}
  
  	ret=SSL_CTX_use_certificate(ctx,x);
  end:
  	if (x != NULL) X509_free(x);
  	if (in != NULL) BIO_free(in);
  	return(ret);
  	}
  #endif
  
  int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, const unsigned char *d)
  	{
  	X509 *x;
  	int ret;
  
  	x=d2i_X509(NULL,&d,(long)len);
  	if (x == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
  		return(0);
  		}
  
  	ret=SSL_CTX_use_certificate(ctx,x);
  	X509_free(x);
  	return(ret);
  	}
  
  #ifndef OPENSSL_NO_RSA
  int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
  	{
  	int ret;
  	EVP_PKEY *pkey;
  
  	if (rsa == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
  		return(0);
  		}
  	if (!ssl_cert_inst(&ctx->cert))
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
  		return(0);
  		}
  	if ((pkey=EVP_PKEY_new()) == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
  		return(0);
  		}
  
  	RSA_up_ref(rsa);
  	EVP_PKEY_assign_RSA(pkey,rsa);
  
  	ret=ssl_set_pkey(ctx->cert, pkey);
  	EVP_PKEY_free(pkey);
  	return(ret);
  	}
  
  #ifndef OPENSSL_NO_STDIO
  int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
  	{
  	int j,ret=0;
  	BIO *in;
  	RSA *rsa=NULL;
  
  	in=BIO_new(BIO_s_file_internal());
  	if (in == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
  		goto end;
  		}
  
  	if (BIO_read_filename(in,file) <= 0)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
  		goto end;
  		}
  	if	(type == SSL_FILETYPE_ASN1)
  		{
  		j=ERR_R_ASN1_LIB;
  		rsa=d2i_RSAPrivateKey_bio(in,NULL);
  		}
  	else if (type == SSL_FILETYPE_PEM)
  		{
  		j=ERR_R_PEM_LIB;
  		rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
  			ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
  		}
  	else
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
  		goto end;
  		}
  	if (rsa == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,j);
  		goto end;
  		}
  	ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
  	RSA_free(rsa);
  end:
  	if (in != NULL) BIO_free(in);
  	return(ret);
  	}
  #endif
  
  int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d, long len)
  	{
  	int ret;
  	const unsigned char *p;
  	RSA *rsa;
  
  	p=d;
  	if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
  		return(0);
  		}
  
  	ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
  	RSA_free(rsa);
  	return(ret);
  	}
  #endif /* !OPENSSL_NO_RSA */
  
  int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
  	{
  	if (pkey == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
  		return(0);
  		}
  	if (!ssl_cert_inst(&ctx->cert))
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
  		return(0);
  		}
  	return(ssl_set_pkey(ctx->cert,pkey));
  	}
  
  #ifndef OPENSSL_NO_STDIO
  int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
  	{
  	int j,ret=0;
  	BIO *in;
  	EVP_PKEY *pkey=NULL;
  
  	in=BIO_new(BIO_s_file_internal());
  	if (in == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
  		goto end;
  		}
  
  	if (BIO_read_filename(in,file) <= 0)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
  		goto end;
  		}
  	if (type == SSL_FILETYPE_PEM)
  		{
  		j=ERR_R_PEM_LIB;
  		pkey=PEM_read_bio_PrivateKey(in,NULL,
  			ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
  		}
  	else if (type == SSL_FILETYPE_ASN1)
  		{
  		j = ERR_R_ASN1_LIB;
  		pkey = d2i_PrivateKey_bio(in,NULL);
  		}
  	else
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
  		goto end;
  		}
  	if (pkey == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,j);
  		goto end;
  		}
  	ret=SSL_CTX_use_PrivateKey(ctx,pkey);
  	EVP_PKEY_free(pkey);
  end:
  	if (in != NULL) BIO_free(in);
  	return(ret);
  	}
  #endif
  
  int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx, const unsigned char *d,
  	     long len)
  	{
  	int ret;
  	const unsigned char *p;
  	EVP_PKEY *pkey;
  
  	p=d;
  	if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
  		return(0);
  		}
  
  	ret=SSL_CTX_use_PrivateKey(ctx,pkey);
  	EVP_PKEY_free(pkey);
  	return(ret);
  	}
  
  
  #ifndef OPENSSL_NO_STDIO
  /* Read a file that contains our certificate in "PEM" format,
   * possibly followed by a sequence of CA certificates that should be
   * sent to the peer in the Certificate message.
   */
  int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
  	{
  	BIO *in;
  	int ret=0;
  	X509 *x=NULL;
  
  	ERR_clear_error(); /* clear error stack for SSL_CTX_use_certificate() */
  
  	in=BIO_new(BIO_s_file_internal());
  	if (in == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_BUF_LIB);
  		goto end;
  		}
  
  	if (BIO_read_filename(in,file) <= 0)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_SYS_LIB);
  		goto end;
  		}
  
  	x=PEM_read_bio_X509_AUX(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
  	if (x == NULL)
  		{
  		SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_PEM_LIB);
  		goto end;
  		}
  
  	ret=SSL_CTX_use_certificate(ctx,x);
  	if (ERR_peek_error() != 0)
  		ret = 0;  /* Key/certificate mismatch doesn't imply ret==0 ... */
  	if (ret)
  		{
  		/* If we could set up our certificate, now proceed to
  		 * the CA certificates.
  		 */
  		X509 *ca;
  		int r;
  		unsigned long err;
  		
  		if (ctx->extra_certs != NULL) 
  			{
  			sk_X509_pop_free(ctx->extra_certs, X509_free);
  			ctx->extra_certs = NULL;
  			}
  
  		while ((ca = PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata))
  			!= NULL)
  			{
  			r = SSL_CTX_add_extra_chain_cert(ctx, ca);
  			if (!r) 
  				{
  				X509_free(ca);
  				ret = 0;
  				goto end;
  				}
  			/* Note that we must not free r if it was successfully
  			 * added to the chain (while we must free the main
  			 * certificate, since its reference count is increased
  			 * by SSL_CTX_use_certificate). */
  			}
  		/* When the while loop ends, it's usually just EOF. */
  		err = ERR_peek_last_error();
  		if (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
  			ERR_clear_error();
  		else 
  			ret = 0; /* some real error */
  		}
  
  end:
  	if (x != NULL) X509_free(x);
  	if (in != NULL) BIO_free(in);
  	return(ret);
  	}
  #endif
  