Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/pem/pvkfmt.c

Index: openssl/crypto/pem/pvkfmt.c
diff --git a/openssl/crypto/pem/pvkfmt.c b/openssl/crypto/pem/pvkfmt.c
deleted file mode 100644
index b1bf71a5daad4ce62e8365d167bde8ad5a4f37d0..0000000000000000000000000000000000000000
--- a/openssl/crypto/pem/pvkfmt.c
+++ /dev/null
@@ -1,950 +0,0 @@
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2005.
- */
-/* ====================================================================
- * Copyright (c) 2005 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).
- *
- */
-
-/* Support for PVK format keys and related structures (such a PUBLICKEYBLOB
- * and PRIVATEKEYBLOB).
- */
-
-#include "cryptlib.h"
-#include <openssl/pem.h>
-#include <openssl/rand.h>
-#include <openssl/bn.h>
-#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DSA)
-#include <openssl/dsa.h>
-#include <openssl/rsa.h>
-
-/* Utility function: read a DWORD (4 byte unsigned integer) in little endian
- * format
- */
-
-static unsigned int read_ledword(const unsigned char **in)
-	{
-	const unsigned char *p = *in;
-	unsigned int ret;
-	ret = *p++;
-	ret |= (*p++ << 8);
-	ret |= (*p++ << 16);
-	ret |= (*p++ << 24);
-	*in = p;
-	return ret;
-	}
-
-/* Read a BIGNUM in little endian format. The docs say that this should take up 
- * bitlen/8 bytes.
- */
-
-static int read_lebn(const unsigned char **in, unsigned int nbyte, BIGNUM **r)
-	{
-	const unsigned char *p;
-	unsigned char *tmpbuf, *q;
-	unsigned int i;
-	p = *in + nbyte - 1;
-	tmpbuf = OPENSSL_malloc(nbyte);
-	if (!tmpbuf)
-		return 0;
-	q = tmpbuf;
-	for (i = 0; i < nbyte; i++)
-		*q++ = *p--;
-	*r = BN_bin2bn(tmpbuf, nbyte, NULL);
-	OPENSSL_free(tmpbuf);
-	if (*r)
-		{
-		*in += nbyte;
-		return 1;
-		}
-	else
-		return 0;
-	}
-
-
-/* Convert private key blob to EVP_PKEY: RSA and DSA keys supported */
-
-#define MS_PUBLICKEYBLOB	0x6
-#define MS_PRIVATEKEYBLOB	0x7
-#define MS_RSA1MAGIC		0x31415352L
-#define MS_RSA2MAGIC		0x32415352L
-#define MS_DSS1MAGIC		0x31535344L
-#define MS_DSS2MAGIC		0x32535344L
-
-#define MS_KEYALG_RSA_KEYX	0xa400
-#define MS_KEYALG_DSS_SIGN	0x2200
-
-#define MS_KEYTYPE_KEYX		0x1
-#define MS_KEYTYPE_SIGN		0x2
-
-/* The PVK file magic number: seems to spell out "bobsfile", who is Bob? */
-#define MS_PVKMAGIC		0xb0b5f11eL
-/* Salt length for PVK files */
-#define PVK_SALTLEN		0x10
-
-static EVP_PKEY *b2i_rsa(const unsigned char **in, unsigned int length,
-						unsigned int bitlen, int ispub);
-static EVP_PKEY *b2i_dss(const unsigned char **in, unsigned int length,
-						unsigned int bitlen, int ispub);
-
-static int do_blob_header(const unsigned char **in, unsigned int length,
-				unsigned int *pmagic, unsigned int *pbitlen,
-				int *pisdss, int *pispub)
-	{
-	const unsigned char *p = *in;
-	if (length < 16)
-		return 0;
-	/* bType */
-	if (*p == MS_PUBLICKEYBLOB)
-		{
-		if (*pispub == 0)
-			{
-			PEMerr(PEM_F_DO_BLOB_HEADER,
-					PEM_R_EXPECTING_PRIVATE_KEY_BLOB);
-			return 0;
-			}
-		*pispub = 1;
-		}
-	else if (*p == MS_PRIVATEKEYBLOB)
-		{
-		if (*pispub == 1)
-			{
-			PEMerr(PEM_F_DO_BLOB_HEADER,
-					PEM_R_EXPECTING_PUBLIC_KEY_BLOB);
-			return 0;
-			}
-		*pispub = 0;
-		}
-	else
-		return 0;
-	p++;
-	/* Version */
-	if (*p++ != 0x2)
-		{
-		PEMerr(PEM_F_DO_BLOB_HEADER, PEM_R_BAD_VERSION_NUMBER);
-		return 0;
-		}
-	/* Ignore reserved, aiKeyAlg */
-	p+= 6;
-	*pmagic = read_ledword(&p);
-	*pbitlen = read_ledword(&p);
-	*pisdss = 0;
-	switch (*pmagic)
-		{
-
-		case MS_DSS1MAGIC:
-		*pisdss = 1;
-		case MS_RSA1MAGIC:
-		if (*pispub == 0)
-			{
-			PEMerr(PEM_F_DO_BLOB_HEADER,
-					PEM_R_EXPECTING_PRIVATE_KEY_BLOB);
-			return 0;
-			}
-		break;
-
-		case MS_DSS2MAGIC:
-		*pisdss = 1;
-		case MS_RSA2MAGIC:
-		if (*pispub == 1)
-			{
-			PEMerr(PEM_F_DO_BLOB_HEADER,
-					PEM_R_EXPECTING_PUBLIC_KEY_BLOB);
-			return 0;
-			}
-		break;
-
-		default:
-		PEMerr(PEM_F_DO_BLOB_HEADER, PEM_R_BAD_MAGIC_NUMBER);
-		return -1;
-		}
-	*in = p;
-	return 1;
-	}
-
-static unsigned int blob_length(unsigned bitlen, int isdss, int ispub)
-	{
-	unsigned int nbyte, hnbyte;
-	nbyte = (bitlen + 7) >> 3;
-	hnbyte = (bitlen + 15) >> 4;
-	if (isdss)
-		{
-
-		/* Expected length: 20 for q + 3 components bitlen each + 24
-		 * for seed structure.
-		 */
-		if (ispub)
-			return  44 + 3 * nbyte;
-		/* Expected length: 20 for q, priv, 2 bitlen components + 24
-		 * for seed structure.
-		 */
-		else
-			return 64 + 2 * nbyte;
-		}
-	else
-		{
-		/* Expected length: 4 for 'e' + 'n' */
-		if (ispub)
-			return 4 + nbyte;
-		else
-		/* Expected length: 4 for 'e' and 7 other components.
-		 * 2 components are bitlen size, 5 are bitlen/2
-		 */
-			return 4 + 2*nbyte + 5*hnbyte;
-		}
-
-	}
-
-static EVP_PKEY *do_b2i(const unsigned char **in, unsigned int length,
-								int ispub)
-	{
-	const unsigned char *p = *in;
-	unsigned int bitlen, magic;
-	int isdss;
-	if (do_blob_header(&p, length, &magic, &bitlen, &isdss, &ispub) <= 0)
-		{
-		PEMerr(PEM_F_DO_B2I, PEM_R_KEYBLOB_HEADER_PARSE_ERROR);
-		return NULL;
-		}
-	length -= 16;
-	if (length < blob_length(bitlen, isdss, ispub))
-		{
-		PEMerr(PEM_F_DO_B2I, PEM_R_KEYBLOB_TOO_SHORT);
-		return NULL;
-		}
-	if (isdss)
-		return b2i_dss(&p, length, bitlen, ispub);
-	else
-		return b2i_rsa(&p, length, bitlen, ispub);
-	}
-
-static EVP_PKEY *do_b2i_bio(BIO *in, int ispub)
-	{
-	const unsigned char *p;
-	unsigned char hdr_buf[16], *buf = NULL;
-	unsigned int bitlen, magic, length;
-	int isdss;
-	EVP_PKEY *ret = NULL;
-	if (BIO_read(in, hdr_buf, 16) != 16)
-		{
-		PEMerr(PEM_F_DO_B2I_BIO, PEM_R_KEYBLOB_TOO_SHORT);
-		return NULL;
-		}
-	p = hdr_buf;
-	if (do_blob_header(&p, 16, &magic, &bitlen, &isdss, &ispub) <= 0)
-		return NULL;
-
-	length = blob_length(bitlen, isdss, ispub);
-	buf = OPENSSL_malloc(length);
-	if (!buf)
-		{
-		PEMerr(PEM_F_DO_B2I_BIO, ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-	p = buf;
-	if (BIO_read(in, buf, length) != (int)length)
-		{
-		PEMerr(PEM_F_DO_B2I_BIO, PEM_R_KEYBLOB_TOO_SHORT);
-		goto err;
-		}
-
-	if (isdss)
-		ret = b2i_dss(&p, length, bitlen, ispub);
-	else
-		ret = b2i_rsa(&p, length, bitlen, ispub);
-
-	err:
-	if (buf)
-		OPENSSL_free(buf);
-	return ret;
-	}
-
-static EVP_PKEY *b2i_dss(const unsigned char **in, unsigned int length,
-						unsigned int bitlen, int ispub)
-	{
-	const unsigned char *p = *in;
-	EVP_PKEY *ret = NULL;
-	DSA *dsa = NULL;
-	BN_CTX *ctx = NULL;
-	unsigned int nbyte;
-	nbyte = (bitlen + 7) >> 3;
-
-	dsa = DSA_new();
-	ret = EVP_PKEY_new();
-	if (!dsa || !ret)
-		goto memerr;
-	if (!read_lebn(&p, nbyte, &dsa->p))
-		goto memerr;
-	if (!read_lebn(&p, 20, &dsa->q))
-		goto memerr;
-	if (!read_lebn(&p, nbyte, &dsa->g))
-		goto memerr;
-	if (ispub)
-		{
-		if (!read_lebn(&p, nbyte, &dsa->pub_key))
-			goto memerr;
-		}
-	else
-		{
-		if (!read_lebn(&p, 20, &dsa->priv_key))
-			goto memerr;
-		/* Calculate public key */
-		if (!(dsa->pub_key = BN_new()))
-			goto memerr;
-		if (!(ctx = BN_CTX_new()))
-			goto memerr;
-			
-		if (!BN_mod_exp(dsa->pub_key, dsa->g,
-						 dsa->priv_key, dsa->p, ctx))
-			
-			goto memerr;
-		BN_CTX_free(ctx);
-		}
-
-	EVP_PKEY_set1_DSA(ret, dsa);
-	DSA_free(dsa);
-	*in = p;
-	return ret;
-
-	memerr:
-	PEMerr(PEM_F_B2I_DSS, ERR_R_MALLOC_FAILURE);
-	if (dsa)
-		DSA_free(dsa);
-	if (ret)
-		EVP_PKEY_free(ret);
-	if (ctx)
-		BN_CTX_free(ctx);
-	return NULL;
-	}
-
-static EVP_PKEY *b2i_rsa(const unsigned char **in, unsigned int length,
-						unsigned int bitlen, int ispub)
-		
-	{
-	const unsigned char *p = *in;
-	EVP_PKEY *ret = NULL;
-	RSA *rsa = NULL;
-	unsigned int nbyte, hnbyte;
-	nbyte = (bitlen + 7) >> 3;
-	hnbyte = (bitlen + 15) >> 4;
-	rsa = RSA_new();
-	ret = EVP_PKEY_new();
-	if (!rsa || !ret)
-		goto memerr;
-	rsa->e = BN_new();
-	if (!rsa->e)
-		goto memerr;
-	if (!BN_set_word(rsa->e, read_ledword(&p)))
-		goto memerr;
-	if (!read_lebn(&p, nbyte, &rsa->n))
-		goto memerr;
-	if (!ispub)
-		{
-		if (!read_lebn(&p, hnbyte, &rsa->p))
-			goto memerr;
-		if (!read_lebn(&p, hnbyte, &rsa->q))
-			goto memerr;
-		if (!read_lebn(&p, hnbyte, &rsa->dmp1))
-			goto memerr;
-		if (!read_lebn(&p, hnbyte, &rsa->dmq1))
-			goto memerr;
-		if (!read_lebn(&p, hnbyte, &rsa->iqmp))
-			goto memerr;
-		if (!read_lebn(&p, nbyte, &rsa->d))
-			goto memerr;
-		}
-
-	EVP_PKEY_set1_RSA(ret, rsa);
-	RSA_free(rsa);
-	*in = p;
-	return ret;
-	memerr:
-	PEMerr(PEM_F_B2I_RSA, ERR_R_MALLOC_FAILURE);
-	if (rsa)
-		RSA_free(rsa);
-	if (ret)
-		EVP_PKEY_free(ret);
-	return NULL;
-	}
-
-EVP_PKEY *b2i_PrivateKey(const unsigned char **in, long length)
-	{
-	return do_b2i(in, length, 0);
-	}
-
-EVP_PKEY *b2i_PublicKey(const unsigned char **in, long length)
-	{
-	return do_b2i(in, length, 1);
-	}
-
-
-EVP_PKEY *b2i_PrivateKey_bio(BIO *in)
-	{
-	return do_b2i_bio(in, 0);
-	}
-
-EVP_PKEY *b2i_PublicKey_bio(BIO *in)
-	{
-	return do_b2i_bio(in, 1);
-	}
-
-static void write_ledword(unsigned char **out, unsigned int dw)
-	{
-	unsigned char *p = *out;
-	*p++ = dw & 0xff;
-	*p++ = (dw>>8) & 0xff;
-	*p++ = (dw>>16) & 0xff;
-	*p++ = (dw>>24) & 0xff;
-	*out = p;
-	}
-
-static void write_lebn(unsigned char **out, const BIGNUM *bn, int len)
-	{
-	int nb, i;
-	unsigned char *p = *out, *q, c;
-	nb = BN_num_bytes(bn);
-	BN_bn2bin(bn, p);
-	q = p + nb - 1;
-	/* In place byte order reversal */
-	for (i = 0; i < nb/2; i++)
-		{
-		c = *p;
-		*p++ = *q;
-		*q-- = c;
-		}
-	*out += nb;
-	/* Pad with zeroes if we have to */
-	if (len > 0)
-		{
-		len -= nb;
-		if (len > 0)
-			{
-			memset(*out, 0, len);
-			*out += len;
-			}
-		}
-	}
-
-
-static int check_bitlen_rsa(RSA *rsa, int ispub, unsigned int *magic);
-static int check_bitlen_dsa(DSA *dsa, int ispub, unsigned int *magic);
-
-static void write_rsa(unsigned char **out, RSA *rsa, int ispub);
-static void write_dsa(unsigned char **out, DSA *dsa, int ispub);
-	
-static int do_i2b(unsigned char **out, EVP_PKEY *pk, int ispub)
-	{
-	unsigned char *p;
-	unsigned int bitlen, magic = 0, keyalg;
-	int outlen, noinc = 0;
-	if (pk->type == EVP_PKEY_DSA)
-		{
-		bitlen = check_bitlen_dsa(pk->pkey.dsa, ispub, &magic);
-		keyalg = MS_KEYALG_DSS_SIGN;
-		}
-	else if (pk->type == EVP_PKEY_RSA)
-		{
-		bitlen = check_bitlen_rsa(pk->pkey.rsa, ispub, &magic);
-		keyalg = MS_KEYALG_RSA_KEYX;
-		}
-	else
-		return -1;
-	if (bitlen == 0)
-		return -1;
-	outlen = 16 + blob_length(bitlen,
-			keyalg == MS_KEYALG_DSS_SIGN ? 1 : 0, ispub);
-	if (out == NULL)
-		return outlen;
-	if (*out)
-		p = *out;
-	else
-		{
-		p = OPENSSL_malloc(outlen);
-		if (!p)
-			return -1;
-		*out = p;
-		noinc = 1;
-		}
-	if (ispub)
-		*p++ = MS_PUBLICKEYBLOB;
-	else
-		*p++ = MS_PRIVATEKEYBLOB;
-	*p++ = 0x2;
-	*p++ = 0;
-	*p++ = 0;
-	write_ledword(&p, keyalg);
-	write_ledword(&p, magic);
-	write_ledword(&p, bitlen);
-	if (keyalg == MS_KEYALG_DSS_SIGN)
-		write_dsa(&p, pk->pkey.dsa, ispub);
-	else
-		write_rsa(&p, pk->pkey.rsa, ispub);
-	if (!noinc)
-		*out += outlen;
-	return outlen;
-	}
-
-static int do_i2b_bio(BIO *out, EVP_PKEY *pk, int ispub)
-	{
-	unsigned char *tmp = NULL;
-	int outlen, wrlen;
-	outlen = do_i2b(&tmp, pk, ispub);
-	if (outlen < 0)
-		return -1;
-	wrlen = BIO_write(out, tmp, outlen);
-	OPENSSL_free(tmp);
-	if (wrlen == outlen)
-		return outlen;
-	return -1;
-	}
-
-static int check_bitlen_dsa(DSA *dsa, int ispub, unsigned int *pmagic)
-	{
-	int bitlen;
-	bitlen = BN_num_bits(dsa->p);
-	if ((bitlen & 7) || (BN_num_bits(dsa->q) != 160)
-		|| (BN_num_bits(dsa->g) > bitlen))
-		goto badkey;
-	if (ispub)
-		{
-		if (BN_num_bits(dsa->pub_key) > bitlen)
-			goto badkey;
-		*pmagic = MS_DSS1MAGIC;
-		}
-	else
-		{
-		if (BN_num_bits(dsa->priv_key) > 160)
-			goto badkey;
-		*pmagic = MS_DSS2MAGIC;
-		}
-	
-	return bitlen;
-	badkey:
-	PEMerr(PEM_F_CHECK_BITLEN_DSA, PEM_R_UNSUPPORTED_KEY_COMPONENTS);
-	return 0;
-	}
-
-static int check_bitlen_rsa(RSA *rsa, int ispub, unsigned int *pmagic)
-	{
-	int nbyte, hnbyte, bitlen;
-	if (BN_num_bits(rsa->e) > 32)
-		goto badkey;
-	bitlen = BN_num_bits(rsa->n);
-	nbyte = BN_num_bytes(rsa->n);
-	hnbyte = (BN_num_bits(rsa->n) + 15) >> 4;
-	if (ispub)
-		{
-		*pmagic = MS_RSA1MAGIC;
-		return bitlen;
-		}
-	else
-	{
-		*pmagic = MS_RSA2MAGIC;
-		/* For private key each component must fit within nbyte or
-		 * hnbyte.
-		 */
-		if (BN_num_bytes(rsa->d) > nbyte)
-			goto badkey;
-		if ((BN_num_bytes(rsa->iqmp) > hnbyte)
-			|| (BN_num_bytes(rsa->p) > hnbyte)
-			|| (BN_num_bytes(rsa->q) > hnbyte)
-			|| (BN_num_bytes(rsa->dmp1) > hnbyte)
-			|| (BN_num_bytes(rsa->dmq1) > hnbyte))
-			goto badkey;
-	}
-	return bitlen;
-	badkey:
-	PEMerr(PEM_F_CHECK_BITLEN_RSA, PEM_R_UNSUPPORTED_KEY_COMPONENTS);
-	return 0;
-	}
-
-
-static void write_rsa(unsigned char **out, RSA *rsa, int ispub)
-	{
-	int nbyte, hnbyte;
-	nbyte = BN_num_bytes(rsa->n);
-	hnbyte = (BN_num_bits(rsa->n) + 15) >> 4;
-	write_lebn(out, rsa->e, 4);
-	write_lebn(out, rsa->n, -1);
-	if (ispub)
-		return;
-	write_lebn(out, rsa->p, hnbyte);
-	write_lebn(out, rsa->q, hnbyte);
-	write_lebn(out, rsa->dmp1, hnbyte);
-	write_lebn(out, rsa->dmq1, hnbyte);
-	write_lebn(out, rsa->iqmp, hnbyte);
-	write_lebn(out, rsa->d, nbyte);
-	}
-
-	
-static void write_dsa(unsigned char **out, DSA *dsa, int ispub)
-	{
-	int nbyte;
-	nbyte = BN_num_bytes(dsa->p);
-	write_lebn(out, dsa->p, nbyte);
-	write_lebn(out, dsa->q, 20);
-	write_lebn(out, dsa->g, nbyte);
-	if (ispub)
-		write_lebn(out, dsa->pub_key, nbyte);
-	else
-		write_lebn(out, dsa->priv_key, 20);
-	/* Set "invalid" for seed structure values */
-	memset(*out, 0xff, 24);
-	*out += 24;
-	return;
-	}
-	
-
-int i2b_PrivateKey_bio(BIO *out, EVP_PKEY *pk)
-	{
-	return do_i2b_bio(out, pk, 0);
-	}
-
-int i2b_PublicKey_bio(BIO *out, EVP_PKEY *pk)
-	{
-	return do_i2b_bio(out, pk, 1);
-	}
-
-#ifndef OPENSSL_NO_RC4
-
-static int do_PVK_header(const unsigned char **in, unsigned int length,
-		int skip_magic,
-	       	unsigned int *psaltlen, unsigned int *pkeylen)
-		
-	{
-	const unsigned char *p = *in;
-	unsigned int pvk_magic, is_encrypted;
-	if (skip_magic)
-		{
-		if (length < 20)
-			{
-			PEMerr(PEM_F_DO_PVK_HEADER, PEM_R_PVK_TOO_SHORT);
-			return 0;
-			}
-		length -= 20;
-		}
-	else
-		{
-		if (length < 24)
-			{
-			PEMerr(PEM_F_DO_PVK_HEADER, PEM_R_PVK_TOO_SHORT);
-			return 0;
-			}
-		length -= 24;
-		pvk_magic = read_ledword(&p);
-		if (pvk_magic != MS_PVKMAGIC)
-			{
-			PEMerr(PEM_F_DO_PVK_HEADER, PEM_R_BAD_MAGIC_NUMBER);
-			return 0;
-			}
-		}
-	/* Skip reserved */
-	p += 4;
-	/*keytype = */read_ledword(&p);
-	is_encrypted = read_ledword(&p);
-	*psaltlen = read_ledword(&p);
-	*pkeylen = read_ledword(&p);
-
-	if (is_encrypted && !*psaltlen)
-		{
-		PEMerr(PEM_F_DO_PVK_HEADER, PEM_R_INCONSISTENT_HEADER);
-		return 0;
-		}
-
-	*in = p;
-	return 1;
-	}
-
-static int derive_pvk_key(unsigned char *key, 
-			const unsigned char *salt, unsigned int saltlen,
-			const unsigned char *pass, int passlen)
-	{
-	EVP_MD_CTX mctx;
-	int rv = 1;
-	EVP_MD_CTX_init(&mctx);
-	if (!EVP_DigestInit_ex(&mctx, EVP_sha1(), NULL)
-		|| !EVP_DigestUpdate(&mctx, salt, saltlen)
-		|| !EVP_DigestUpdate(&mctx, pass, passlen)
-		|| !EVP_DigestFinal_ex(&mctx, key, NULL))
-			rv = 0;
-
-	EVP_MD_CTX_cleanup(&mctx);
-	return rv;
-	}
-	
-
-static EVP_PKEY *do_PVK_body(const unsigned char **in,
-		unsigned int saltlen, unsigned int keylen,
-		pem_password_cb *cb, void *u)
-	{
-	EVP_PKEY *ret = NULL;
-	const unsigned char *p = *in;
-	unsigned int magic;
-	unsigned char *enctmp = NULL, *q;
-	EVP_CIPHER_CTX cctx;
-	EVP_CIPHER_CTX_init(&cctx);
-	if (saltlen)
-		{
-		char psbuf[PEM_BUFSIZE];
-		unsigned char keybuf[20];
-		int enctmplen, inlen;
-		if (cb)
-			inlen=cb(psbuf,PEM_BUFSIZE,0,u);
-		else
-			inlen=PEM_def_callback(psbuf,PEM_BUFSIZE,0,u);
-		if (inlen <= 0)
-			{
-			PEMerr(PEM_F_DO_PVK_BODY,PEM_R_BAD_PASSWORD_READ);
-			return NULL;
-			}
-		enctmp = OPENSSL_malloc(keylen + 8);
-		if (!enctmp)
-			{
-			PEMerr(PEM_F_DO_PVK_BODY, ERR_R_MALLOC_FAILURE);
-			return NULL;
-			}
-		if (!derive_pvk_key(keybuf, p, saltlen,
-			    (unsigned char *)psbuf, inlen))
-			return NULL;
-		p += saltlen;
-		/* Copy BLOBHEADER across, decrypt rest */
-		memcpy(enctmp, p, 8);
-		p += 8;
-		inlen = keylen - 8;
-		q = enctmp + 8;
-		if (!EVP_DecryptInit_ex(&cctx, EVP_rc4(), NULL, keybuf, NULL))
-			goto err;
-		if (!EVP_DecryptUpdate(&cctx, q, &enctmplen, p, inlen))
-			goto err;
-		if (!EVP_DecryptFinal_ex(&cctx, q + enctmplen, &enctmplen))
-			goto err;
-		magic = read_ledword((const unsigned char **)&q);
-		if (magic != MS_RSA2MAGIC && magic != MS_DSS2MAGIC)
-			{
-			q = enctmp + 8;
-			memset(keybuf + 5, 0, 11);
-			if (!EVP_DecryptInit_ex(&cctx, EVP_rc4(), NULL, keybuf,
-								NULL))
-				goto err;
-			OPENSSL_cleanse(keybuf, 20);
-			if (!EVP_DecryptUpdate(&cctx, q, &enctmplen, p, inlen))
-				goto err;
-			if (!EVP_DecryptFinal_ex(&cctx, q + enctmplen,
-								&enctmplen))
-				goto err;
-			magic = read_ledword((const unsigned char **)&q);
-			if (magic != MS_RSA2MAGIC && magic != MS_DSS2MAGIC)
-				{
-				PEMerr(PEM_F_DO_PVK_BODY, PEM_R_BAD_DECRYPT);
-				goto err;
-				}
-			}
-		else
-			OPENSSL_cleanse(keybuf, 20);
-		p = enctmp;
-		}
-
-	ret = b2i_PrivateKey(&p, keylen);
-	err:
-	EVP_CIPHER_CTX_cleanup(&cctx);
-	if (enctmp && saltlen)
-		OPENSSL_free(enctmp);
-	return ret;
-	}
-
-
-EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u)
-	{
-	unsigned char pvk_hdr[24], *buf = NULL;
-	const unsigned char *p;
-	int buflen;
-	EVP_PKEY *ret = NULL;
-	unsigned int saltlen, keylen;
-	if (BIO_read(in, pvk_hdr, 24) != 24)
-		{
-		PEMerr(PEM_F_B2I_PVK_BIO, PEM_R_PVK_DATA_TOO_SHORT);
-		return NULL;
-		}
-	p = pvk_hdr;
-
-	if (!do_PVK_header(&p, 24, 0, &saltlen, &keylen))
-		return 0;
-	buflen = (int) keylen + saltlen;
-	buf = OPENSSL_malloc(buflen);
-	if (!buf)
-		{
-		PEMerr(PEM_F_B2I_PVK_BIO, ERR_R_MALLOC_FAILURE);
-		return 0;
-		}
-	p = buf;
-	if (BIO_read(in, buf, buflen) != buflen)
-		{
-		PEMerr(PEM_F_B2I_PVK_BIO, PEM_R_PVK_DATA_TOO_SHORT);
-		goto err;
-		}
-	ret = do_PVK_body(&p, saltlen, keylen, cb, u);
-
-	err:
-	if (buf)
-		{
-		OPENSSL_cleanse(buf, buflen);
-		OPENSSL_free(buf);
-		}
-	return ret;
-	}
-
-	
-	
-static int i2b_PVK(unsigned char **out, EVP_PKEY*pk, int enclevel,
-		pem_password_cb *cb, void *u)
-	{
-	int outlen = 24, pklen;
-	unsigned char *p, *salt = NULL;
-	EVP_CIPHER_CTX cctx;
-	EVP_CIPHER_CTX_init(&cctx);
-	if (enclevel)
-		outlen += PVK_SALTLEN;
-	pklen = do_i2b(NULL, pk, 0);
-	if (pklen < 0)
-		return -1;
-	outlen += pklen;
-	if (!out)
-		return outlen;
-	if (*out)
-		p = *out;
-	else
-		{
-		p = OPENSSL_malloc(outlen);
-		if (!p)
-			{
-			PEMerr(PEM_F_I2B_PVK,ERR_R_MALLOC_FAILURE);
-			return -1;
-			}
-		*out = p;
-		}
-
-	write_ledword(&p, MS_PVKMAGIC);
-	write_ledword(&p, 0);
-	if (pk->type == EVP_PKEY_DSA)
-		write_ledword(&p, MS_KEYTYPE_SIGN);
-	else
-		write_ledword(&p, MS_KEYTYPE_KEYX);
-	write_ledword(&p, enclevel ? 1 : 0);
-	write_ledword(&p, enclevel ? PVK_SALTLEN: 0);
-	write_ledword(&p, pklen);
-	if (enclevel)
-		{
-		if (RAND_bytes(p, PVK_SALTLEN) <= 0)
-			goto error;
-		salt = p;
-		p += PVK_SALTLEN;
-		}
-	do_i2b(&p, pk, 0);
-	if (enclevel == 0)
-		return outlen;
-	else
-		{
-		char psbuf[PEM_BUFSIZE];
-		unsigned char keybuf[20];
-		int enctmplen, inlen;
-		if (cb)
-			inlen=cb(psbuf,PEM_BUFSIZE,1,u);
-		else
-			inlen=PEM_def_callback(psbuf,PEM_BUFSIZE,1,u);
-		if (inlen <= 0)
-			{
-			PEMerr(PEM_F_I2B_PVK,PEM_R_BAD_PASSWORD_READ);
-			goto error;
-			}
-		if (!derive_pvk_key(keybuf, salt, PVK_SALTLEN,
-			    (unsigned char *)psbuf, inlen))
-			goto error;
-		if (enclevel == 1)
-			memset(keybuf + 5, 0, 11);
-		p = salt + PVK_SALTLEN + 8;
-		if (!EVP_EncryptInit_ex(&cctx, EVP_rc4(), NULL, keybuf, NULL))
-			goto error;
-		OPENSSL_cleanse(keybuf, 20);
-		if (!EVP_DecryptUpdate(&cctx, p, &enctmplen, p, pklen - 8))
-			goto error;
-		if (!EVP_DecryptFinal_ex(&cctx, p + enctmplen, &enctmplen))
-			goto error;
-		}
-	EVP_CIPHER_CTX_cleanup(&cctx);
-	return outlen;
-
-	error:
-	EVP_CIPHER_CTX_cleanup(&cctx);
-	return -1;
-	}
-
-int i2b_PVK_bio(BIO *out, EVP_PKEY *pk, int enclevel,
-		pem_password_cb *cb, void *u)
-	{
-	unsigned char *tmp = NULL;
-	int outlen, wrlen;
-	outlen = i2b_PVK(&tmp, pk, enclevel, cb, u);
-	if (outlen < 0)
-		return -1;
-	wrlen = BIO_write(out, tmp, outlen);
-	OPENSSL_free(tmp);
-	if (wrlen == outlen)
-		{
-		PEMerr(PEM_F_I2B_PVK_BIO, PEM_R_BIO_WRITE_FAILURE);
-		return outlen;
-		}
-	return -1;
-	}
-
-#endif
-
-#endif