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path: root/main/openssl/crypto/pem/pvkfmt.c
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Diffstat (limited to 'main/openssl/crypto/pem/pvkfmt.c')
m---------main/openssl0
-rw-r--r--main/openssl/crypto/pem/pvkfmt.c955
2 files changed, 0 insertions, 955 deletions
diff --git a/main/openssl b/main/openssl
new file mode 160000
+Subproject 4d377a9ce111930d8a8f06dc0e94a892a7f6c51
diff --git a/main/openssl/crypto/pem/pvkfmt.c b/main/openssl/crypto/pem/pvkfmt.c
deleted file mode 100644
index ae89f828..00000000
--- a/main/openssl/crypto/pem/pvkfmt.c
+++ /dev/null
@@ -1,955 +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;
- if (keylen < 8)
- {
- PEMerr(PEM_F_DO_PVK_BODY, PEM_R_PVK_TOO_SHORT);
- return NULL;
- }
- 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
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