/*
- * 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).
+ * Copyright 2005-2018 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (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
*/
/*
# define MS_KEYTYPE_KEYX 0x1
# define MS_KEYTYPE_SIGN 0x2
+/* Maximum length of a blob after header */
+# define BLOB_MAX_LENGTH 102400
+
/* 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
+/* Maximum length in PVK header */
+# define PVK_MAX_KEYLEN 102400
+/* Maximum salt length */
+# define PVK_MAX_SALTLEN 10240
static EVP_PKEY *b2i_rsa(const unsigned char **in,
unsigned int bitlen, int ispub);
case MS_DSS1MAGIC:
*pisdss = 1;
+ /* fall thru */
case MS_RSA1MAGIC:
if (*pispub == 0) {
PEMerr(PEM_F_DO_BLOB_HEADER, PEM_R_EXPECTING_PRIVATE_KEY_BLOB);
case MS_DSS2MAGIC:
*pisdss = 1;
+ /* fall thru */
case MS_RSA2MAGIC:
if (*pispub == 1) {
PEMerr(PEM_F_DO_BLOB_HEADER, PEM_R_EXPECTING_PUBLIC_KEY_BLOB);
return NULL;
length = blob_length(bitlen, isdss, ispub);
+ if (length > BLOB_MAX_LENGTH) {
+ PEMerr(PEM_F_DO_B2I_BIO, PEM_R_HEADER_TOO_LONG);
+ return NULL;
+ }
buf = OPENSSL_malloc(length);
if (buf == NULL) {
PEMerr(PEM_F_DO_B2I_BIO, ERR_R_MALLOC_FAILURE);
DSA *dsa = NULL;
BN_CTX *ctx = NULL;
unsigned int nbyte;
+ BIGNUM *pbn = NULL, *qbn = NULL, *gbn = NULL, *priv_key = NULL;
+ BIGNUM *pub_key = NULL;
+
nbyte = (bitlen + 7) >> 3;
dsa = DSA_new();
ret = EVP_PKEY_new();
if (dsa == NULL || ret == NULL)
goto memerr;
- if (!read_lebn(&p, nbyte, &dsa->p))
+ if (!read_lebn(&p, nbyte, &pbn))
goto memerr;
- if (!read_lebn(&p, 20, &dsa->q))
+
+ if (!read_lebn(&p, 20, &qbn))
goto memerr;
- if (!read_lebn(&p, nbyte, &dsa->g))
+
+ if (!read_lebn(&p, nbyte, &gbn))
goto memerr;
+
if (ispub) {
- if (!read_lebn(&p, nbyte, &dsa->pub_key))
+ if (!read_lebn(&p, nbyte, &pub_key))
goto memerr;
} else {
- if (!read_lebn(&p, 20, &dsa->priv_key))
+ if (!read_lebn(&p, 20, &priv_key))
goto memerr;
+
/* Calculate public key */
- if ((dsa->pub_key = BN_new()) == NULL)
+ pub_key = BN_new();
+ if (pub_key == NULL)
goto memerr;
if ((ctx = BN_CTX_new()) == NULL)
goto memerr;
- if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx))
+ if (!BN_mod_exp(pub_key, gbn, priv_key, pbn, ctx))
goto memerr;
+
BN_CTX_free(ctx);
+ ctx = NULL;
}
+ if (!DSA_set0_pqg(dsa, pbn, qbn, gbn))
+ goto memerr;
+ pbn = qbn = gbn = NULL;
+ if (!DSA_set0_key(dsa, pub_key, priv_key))
+ goto memerr;
+ pub_key = priv_key = NULL;
- EVP_PKEY_set1_DSA(ret, dsa);
+ if (!EVP_PKEY_set1_DSA(ret, dsa))
+ goto memerr;
DSA_free(dsa);
*in = p;
return ret;
memerr:
PEMerr(PEM_F_B2I_DSS, ERR_R_MALLOC_FAILURE);
DSA_free(dsa);
+ BN_free(pbn);
+ BN_free(qbn);
+ BN_free(gbn);
+ BN_free(pub_key);
+ BN_free(priv_key);
EVP_PKEY_free(ret);
BN_CTX_free(ctx);
return NULL;
static EVP_PKEY *b2i_rsa(const unsigned char **in,
unsigned int bitlen, int ispub)
{
- const unsigned char *p = *in;
+ const unsigned char *pin = *in;
EVP_PKEY *ret = NULL;
+ BIGNUM *e = NULL, *n = NULL, *d = NULL;
+ BIGNUM *p = NULL, *q = NULL, *dmp1 = NULL, *dmq1 = NULL, *iqmp = NULL;
RSA *rsa = NULL;
unsigned int nbyte, hnbyte;
nbyte = (bitlen + 7) >> 3;
ret = EVP_PKEY_new();
if (rsa == NULL || ret == NULL)
goto memerr;
- rsa->e = BN_new();
- if (rsa->e == NULL)
+ e = BN_new();
+ if (e == NULL)
goto memerr;
- if (!BN_set_word(rsa->e, read_ledword(&p)))
+ if (!BN_set_word(e, read_ledword(&pin)))
goto memerr;
- if (!read_lebn(&p, nbyte, &rsa->n))
+ if (!read_lebn(&pin, nbyte, &n))
goto memerr;
if (!ispub) {
- if (!read_lebn(&p, hnbyte, &rsa->p))
+ if (!read_lebn(&pin, hnbyte, &p))
+ goto memerr;
+ if (!read_lebn(&pin, hnbyte, &q))
+ goto memerr;
+ if (!read_lebn(&pin, hnbyte, &dmp1))
goto memerr;
- if (!read_lebn(&p, hnbyte, &rsa->q))
+ if (!read_lebn(&pin, hnbyte, &dmq1))
goto memerr;
- if (!read_lebn(&p, hnbyte, &rsa->dmp1))
+ if (!read_lebn(&pin, hnbyte, &iqmp))
goto memerr;
- if (!read_lebn(&p, hnbyte, &rsa->dmq1))
+ if (!read_lebn(&pin, nbyte, &d))
goto memerr;
- if (!read_lebn(&p, hnbyte, &rsa->iqmp))
+ if (!RSA_set0_factors(rsa, p, q))
goto memerr;
- if (!read_lebn(&p, nbyte, &rsa->d))
+ p = q = NULL;
+ if (!RSA_set0_crt_params(rsa, dmp1, dmq1, iqmp))
goto memerr;
+ dmp1 = dmq1 = iqmp = NULL;
}
+ if (!RSA_set0_key(rsa, n, e, d))
+ goto memerr;
+ n = e = d = NULL;
- EVP_PKEY_set1_RSA(ret, rsa);
+ if (!EVP_PKEY_set1_RSA(ret, rsa))
+ goto memerr;
RSA_free(rsa);
- *in = p;
+ *in = pin;
return ret;
memerr:
PEMerr(PEM_F_B2I_RSA, ERR_R_MALLOC_FAILURE);
+ BN_free(e);
+ BN_free(n);
+ BN_free(p);
+ BN_free(q);
+ BN_free(dmp1);
+ BN_free(dmq1);
+ BN_free(iqmp);
+ BN_free(d);
RSA_free(rsa);
EVP_PKEY_free(ret);
return NULL;
if (*out)
p = *out;
else {
- p = OPENSSL_malloc(outlen);
- if (p == NULL)
+ if ((p = OPENSSL_malloc(outlen)) == NULL) {
+ PEMerr(PEM_F_DO_I2B, ERR_R_MALLOC_FAILURE);
return -1;
+ }
*out = p;
noinc = 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))
+ const BIGNUM *p = NULL, *q = NULL, *g = NULL;
+ const BIGNUM *pub_key = NULL, *priv_key = NULL;
+
+ DSA_get0_pqg(dsa, &p, &q, &g);
+ DSA_get0_key(dsa, &pub_key, &priv_key);
+ bitlen = BN_num_bits(p);
+ if ((bitlen & 7) || (BN_num_bits(q) != 160)
+ || (BN_num_bits(g) > bitlen))
goto badkey;
if (ispub) {
- if (BN_num_bits(dsa->pub_key) > bitlen)
+ if (BN_num_bits(pub_key) > bitlen)
goto badkey;
*pmagic = MS_DSS1MAGIC;
} else {
- if (BN_num_bits(dsa->priv_key) > 160)
+ if (BN_num_bits(priv_key) > 160)
goto badkey;
*pmagic = MS_DSS2MAGIC;
}
static int check_bitlen_rsa(RSA *rsa, int ispub, unsigned int *pmagic)
{
int nbyte, hnbyte, bitlen;
- if (BN_num_bits(rsa->e) > 32)
+ const BIGNUM *e;
+
+ RSA_get0_key(rsa, NULL, &e, NULL);
+ if (BN_num_bits(e) > 32)
goto badkey;
- bitlen = BN_num_bits(rsa->n);
- nbyte = BN_num_bytes(rsa->n);
- hnbyte = (BN_num_bits(rsa->n) + 15) >> 4;
+ bitlen = RSA_bits(rsa);
+ nbyte = RSA_size(rsa);
+ hnbyte = (bitlen + 15) >> 4;
if (ispub) {
*pmagic = MS_RSA1MAGIC;
return bitlen;
} else {
+ const BIGNUM *d, *p, *q, *iqmp, *dmp1, *dmq1;
+
*pmagic = MS_RSA2MAGIC;
+
/*
* For private key each component must fit within nbyte or hnbyte.
*/
- if (BN_num_bytes(rsa->d) > nbyte)
+ RSA_get0_key(rsa, NULL, NULL, &d);
+ if (BN_num_bytes(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))
+ RSA_get0_factors(rsa, &p, &q);
+ RSA_get0_crt_params(rsa, &dmp1, &dmq1, &iqmp);
+ if ((BN_num_bytes(iqmp) > hnbyte)
+ || (BN_num_bytes(p) > hnbyte)
+ || (BN_num_bytes(q) > hnbyte)
+ || (BN_num_bytes(dmp1) > hnbyte)
+ || (BN_num_bytes(dmq1) > hnbyte))
goto badkey;
}
return bitlen;
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);
+ const BIGNUM *n, *d, *e, *p, *q, *iqmp, *dmp1, *dmq1;
+
+ nbyte = RSA_size(rsa);
+ hnbyte = (RSA_bits(rsa) + 15) >> 4;
+ RSA_get0_key(rsa, &n, &e, &d);
+ write_lebn(out, e, 4);
+ write_lebn(out, n, nbyte);
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);
+ RSA_get0_factors(rsa, &p, &q);
+ RSA_get0_crt_params(rsa, &dmp1, &dmq1, &iqmp);
+ write_lebn(out, p, hnbyte);
+ write_lebn(out, q, hnbyte);
+ write_lebn(out, dmp1, hnbyte);
+ write_lebn(out, dmq1, hnbyte);
+ write_lebn(out, iqmp, hnbyte);
+ write_lebn(out, 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);
+ const BIGNUM *p = NULL, *q = NULL, *g = NULL;
+ const BIGNUM *pub_key = NULL, *priv_key = NULL;
+
+ DSA_get0_pqg(dsa, &p, &q, &g);
+ DSA_get0_key(dsa, &pub_key, &priv_key);
+ nbyte = BN_num_bytes(p);
+ write_lebn(out, p, nbyte);
+ write_lebn(out, q, 20);
+ write_lebn(out, g, nbyte);
if (ispub)
- write_lebn(out, dsa->pub_key, nbyte);
+ write_lebn(out, pub_key, nbyte);
else
- write_lebn(out, dsa->priv_key, 20);
+ write_lebn(out, priv_key, 20);
/* Set "invalid" for seed structure values */
memset(*out, 0xff, 24);
*out += 24;
*psaltlen = read_ledword(&p);
*pkeylen = read_ledword(&p);
+ if (*pkeylen > PVK_MAX_KEYLEN || *psaltlen > PVK_MAX_SALTLEN)
+ return 0;
+
if (is_encrypted && !*psaltlen) {
PEMerr(PEM_F_DO_PVK_HEADER, PEM_R_INCONSISTENT_HEADER);
return 0;
inlen = cb(psbuf, PEM_BUFSIZE, 0, u);
else
inlen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u);
- if (inlen <= 0) {
+ if (inlen < 0) {
PEMerr(PEM_F_DO_PVK_BODY, PEM_R_BAD_PASSWORD_READ);
goto err;
}
pem_password_cb *cb, void *u)
{
int outlen = 24, pklen;
- unsigned char *p, *salt = NULL;
- EVP_CIPHER_CTX *cctx = EVP_CIPHER_CTX_new();
+ unsigned char *p = NULL, *start = NULL, *salt = NULL;
+ EVP_CIPHER_CTX *cctx = NULL;
if (enclevel)
outlen += PVK_SALTLEN;
pklen = do_i2b(NULL, pk, 0);
if (pklen < 0)
return -1;
outlen += pklen;
- if (!out)
+ if (out == NULL)
return outlen;
- if (*out)
+ if (*out != NULL) {
p = *out;
- else {
- p = OPENSSL_malloc(outlen);
+ } else {
+ start = p = OPENSSL_malloc(outlen);
if (p == NULL) {
PEMerr(PEM_F_I2B_PVK, ERR_R_MALLOC_FAILURE);
return -1;
}
- *out = p;
}
+ cctx = EVP_CIPHER_CTX_new();
+ if (cctx == NULL)
+ goto error;
+
write_ledword(&p, MS_PVKMAGIC);
write_ledword(&p, 0);
if (EVP_PKEY_id(pk) == EVP_PKEY_DSA)
p += PVK_SALTLEN;
}
do_i2b(&p, pk, 0);
- if (enclevel == 0)
- return outlen;
- else {
+ if (enclevel != 0) {
char psbuf[PEM_BUFSIZE];
unsigned char keybuf[20];
int enctmplen, inlen;
if (!EVP_DecryptFinal_ex(cctx, p + enctmplen, &enctmplen))
goto error;
}
+
EVP_CIPHER_CTX_free(cctx);
+
+ if (*out == NULL)
+ *out = start;
+
return outlen;
error:
EVP_CIPHER_CTX_free(cctx);
+ if (*out == NULL)
+ OPENSSL_free(start);
return -1;
}
projects / openssl.git / blobdiff