-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2006.
- */
-/* ====================================================================
- * Copyright (c) 2006 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 2006-2022 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the Apache License 2.0 (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
*/
+/*
+ * DH low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
#include <stdio.h>
-#include "cryptlib.h"
#include <openssl/x509.h>
#include <openssl/asn1.h>
-#include <openssl/dh.h>
#include <openssl/bn.h>
-#include "asn1_locl.h"
+#include <openssl/core_names.h>
+#include <openssl/param_build.h>
+#include "internal/ffc.h"
+#include "internal/cryptlib.h"
+#include "crypto/asn1.h"
+#include "crypto/dh.h"
+#include "crypto/evp.h"
+#include "dh_local.h"
+
+/*
+ * i2d/d2i like DH parameter functions which use the appropriate routine for
+ * PKCS#3 DH or X9.42 DH.
+ */
-extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth;
+static DH *d2i_dhp(const EVP_PKEY *pkey, const unsigned char **pp,
+ long length)
+{
+ DH *dh = NULL;
+ int is_dhx = (pkey->ameth == &ossl_dhx_asn1_meth);
-/* i2d/d2i like DH parameter functions which use the appropriate routine
- * for PKCS#3 DH or X9.42 DH.
- */
+ if (is_dhx)
+ dh = d2i_DHxparams(NULL, pp, length);
+ else
+ dh = d2i_DHparams(NULL, pp, length);
-static DH * d2i_dhp(const EVP_PKEY *pkey, const unsigned char **pp, long length)
- {
- if (pkey->ameth == &dhx_asn1_meth)
- return d2i_DHxparams(NULL, pp, length);
- return d2i_DHparams(NULL, pp, length);
- }
+ return dh;
+}
static int i2d_dhp(const EVP_PKEY *pkey, const DH *a, unsigned char **pp)
- {
- if (pkey->ameth == &dhx_asn1_meth)
- return i2d_DHxparams(a, pp);
- return i2d_DHparams(a, pp);
- }
+{
+ if (pkey->ameth == &ossl_dhx_asn1_meth)
+ return i2d_DHxparams(a, pp);
+ return i2d_DHparams(a, pp);
+}
static void int_dh_free(EVP_PKEY *pkey)
- {
- DH_free(pkey->pkey.dh);
- }
-
-static int dh_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
- {
- const unsigned char *p, *pm;
- int pklen, pmlen;
- int ptype;
- void *pval;
- ASN1_STRING *pstr;
- X509_ALGOR *palg;
- ASN1_INTEGER *public_key = NULL;
-
- DH *dh = NULL;
-
- if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
- return 0;
- X509_ALGOR_get0(NULL, &ptype, &pval, palg);
-
- if (ptype != V_ASN1_SEQUENCE)
- {
- DHerr(DH_F_DH_PUB_DECODE, DH_R_PARAMETER_ENCODING_ERROR);
- goto err;
- }
-
- pstr = pval;
- pm = pstr->data;
- pmlen = pstr->length;
-
- if (!(dh = d2i_dhp(pkey, &pm, pmlen)))
- {
- DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR);
- goto err;
- }
-
- if (!(public_key=d2i_ASN1_INTEGER(NULL, &p, pklen)))
- {
- DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR);
- goto err;
- }
-
- /* We have parameters now set public key */
- if (!(dh->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)))
- {
- DHerr(DH_F_DH_PUB_DECODE, DH_R_BN_DECODE_ERROR);
- goto err;
- }
-
- ASN1_INTEGER_free(public_key);
- EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, dh);
- return 1;
-
- err:
- if (public_key)
- ASN1_INTEGER_free(public_key);
- if (dh)
- DH_free(dh);
- return 0;
-
- }
-
-static int dh_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
- {
- DH *dh;
- void *pval = NULL;
- int ptype;
- unsigned char *penc = NULL;
- int penclen;
- ASN1_STRING *str;
- ASN1_INTEGER *pub_key = NULL;
-
- dh=pkey->pkey.dh;
-
- str = ASN1_STRING_new();
- str->length = i2d_dhp(pkey, dh, &str->data);
- if (str->length <= 0)
- {
- DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- pval = str;
- ptype = V_ASN1_SEQUENCE;
-
- pub_key = BN_to_ASN1_INTEGER(dh->pub_key, NULL);
- if (!pub_key)
- goto err;
-
- penclen = i2d_ASN1_INTEGER(pub_key, &penc);
-
- ASN1_INTEGER_free(pub_key);
-
- if (penclen <= 0)
- {
- DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(pkey->ameth->pkey_id),
- ptype, pval, penc, penclen))
- return 1;
-
- err:
- if (penc)
- OPENSSL_free(penc);
- if (pval)
- ASN1_STRING_free(pval);
-
- return 0;
- }
-
-
-/* PKCS#8 DH is defined in PKCS#11 of all places. It is similar to DH in
- * that the AlgorithmIdentifier contains the paramaters, the private key
- * is explcitly included and the pubkey must be recalculated.
- */
-
-static int dh_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
- {
- const unsigned char *p, *pm;
- int pklen, pmlen;
- int ptype;
- void *pval;
- ASN1_STRING *pstr;
- X509_ALGOR *palg;
- ASN1_INTEGER *privkey = NULL;
-
- DH *dh = NULL;
-
- if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
- return 0;
-
- X509_ALGOR_get0(NULL, &ptype, &pval, palg);
-
- if (ptype != V_ASN1_SEQUENCE)
- goto decerr;
-
- if (!(privkey=d2i_ASN1_INTEGER(NULL, &p, pklen)))
- goto decerr;
-
-
- pstr = pval;
- pm = pstr->data;
- pmlen = pstr->length;
- if (!(dh = d2i_dhp(pkey, &pm, pmlen)))
- goto decerr;
- /* We have parameters now set private key */
- if (!(dh->priv_key = ASN1_INTEGER_to_BN(privkey, NULL)))
- {
- DHerr(DH_F_DH_PRIV_DECODE,DH_R_BN_ERROR);
- goto dherr;
- }
- /* Calculate public key */
- if (!DH_generate_key(dh))
- goto dherr;
-
- EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, dh);
-
- ASN1_INTEGER_free(privkey);
-
- return 1;
-
- decerr:
- DHerr(DH_F_DH_PRIV_DECODE, EVP_R_DECODE_ERROR);
- dherr:
- DH_free(dh);
- return 0;
- }
-
-static int dh_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
- ASN1_STRING *params = NULL;
- ASN1_INTEGER *prkey = NULL;
- unsigned char *dp = NULL;
- int dplen;
-
- params = ASN1_STRING_new();
-
- if (!params)
- {
- DHerr(DH_F_DH_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- params->length = i2d_dhp(pkey, pkey->pkey.dh, ¶ms->data);
- if (params->length <= 0)
- {
- DHerr(DH_F_DH_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
- goto err;
- }
- params->type = V_ASN1_SEQUENCE;
-
- /* Get private key into integer */
- prkey = BN_to_ASN1_INTEGER(pkey->pkey.dh->priv_key, NULL);
+ DH_free(pkey->pkey.dh);
+}
- if (!prkey)
- {
- DHerr(DH_F_DH_PRIV_ENCODE,DH_R_BN_ERROR);
- goto err;
- }
+static int dh_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey)
+{
+ const unsigned char *p, *pm;
+ int pklen, pmlen;
+ int ptype;
+ const void *pval;
+ const ASN1_STRING *pstr;
+ X509_ALGOR *palg;
+ ASN1_INTEGER *public_key = NULL;
+
+ DH *dh = NULL;
+
+ if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
+ return 0;
+ X509_ALGOR_get0(NULL, &ptype, &pval, palg);
+
+ if (ptype != V_ASN1_SEQUENCE) {
+ ERR_raise(ERR_LIB_DH, DH_R_PARAMETER_ENCODING_ERROR);
+ goto err;
+ }
+
+ pstr = pval;
+ pm = pstr->data;
+ pmlen = pstr->length;
+
+ if ((dh = d2i_dhp(pkey, &pm, pmlen)) == NULL) {
+ ERR_raise(ERR_LIB_DH, DH_R_DECODE_ERROR);
+ goto err;
+ }
+
+ if ((public_key = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL) {
+ ERR_raise(ERR_LIB_DH, DH_R_DECODE_ERROR);
+ goto err;
+ }
+
+ /* We have parameters now set public key */
+ if ((dh->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)) == NULL) {
+ ERR_raise(ERR_LIB_DH, DH_R_BN_DECODE_ERROR);
+ goto err;
+ }
+
+ ASN1_INTEGER_free(public_key);
+ EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, dh);
+ return 1;
+
+ err:
+ ASN1_INTEGER_free(public_key);
+ DH_free(dh);
+ return 0;
+}
- dplen = i2d_ASN1_INTEGER(prkey, &dp);
+static int dh_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
+{
+ DH *dh;
+ int ptype;
+ unsigned char *penc = NULL;
+ int penclen;
+ ASN1_STRING *str;
+ ASN1_INTEGER *pub_key = NULL;
+
+ dh = pkey->pkey.dh;
+
+ str = ASN1_STRING_new();
+ if (str == NULL) {
+ ERR_raise(ERR_LIB_DH, ERR_R_ASN1_LIB);
+ goto err;
+ }
+ str->length = i2d_dhp(pkey, dh, &str->data);
+ if (str->length <= 0) {
+ ERR_raise(ERR_LIB_DH, ERR_R_ASN1_LIB);
+ goto err;
+ }
+ ptype = V_ASN1_SEQUENCE;
+
+ pub_key = BN_to_ASN1_INTEGER(dh->pub_key, NULL);
+ if (pub_key == NULL)
+ goto err;
+
+ penclen = i2d_ASN1_INTEGER(pub_key, &penc);
+
+ ASN1_INTEGER_free(pub_key);
+
+ if (penclen <= 0) {
+ ERR_raise(ERR_LIB_DH, ERR_R_ASN1_LIB);
+ goto err;
+ }
+
+ if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(pkey->ameth->pkey_id),
+ ptype, str, penc, penclen))
+ return 1;
+
+ err:
+ OPENSSL_free(penc);
+ ASN1_STRING_free(str);
+
+ return 0;
+}
- ASN1_INTEGER_free(prkey);
+/*
+ * PKCS#8 DH is defined in PKCS#11 of all places. It is similar to DH in that
+ * the AlgorithmIdentifier contains the parameters, the private key is
+ * explicitly included and the pubkey must be recalculated.
+ */
- if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(pkey->ameth->pkey_id), 0,
- V_ASN1_SEQUENCE, params, dp, dplen))
- goto err;
+static int dh_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8)
+{
+ int ret = 0;
+ DH *dh = ossl_dh_key_from_pkcs8(p8, NULL, NULL);
- return 1;
+ if (dh != NULL) {
+ ret = 1;
+ EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, dh);
+ }
-err:
- if (dp != NULL)
- OPENSSL_free(dp);
- if (params != NULL)
- ASN1_STRING_free(params);
- if (prkey != NULL)
- ASN1_INTEGER_free(prkey);
- return 0;
+ return ret;
}
-
-static void update_buflen(const BIGNUM *b, size_t *pbuflen)
- {
- size_t i;
- if (!b)
- return;
- if (*pbuflen < (i = (size_t)BN_num_bytes(b)))
- *pbuflen = i;
- }
+static int dh_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
+{
+ ASN1_STRING *params = NULL;
+ ASN1_INTEGER *prkey = NULL;
+ unsigned char *dp = NULL;
+ int dplen;
+
+ params = ASN1_STRING_new();
+
+ if (params == NULL) {
+ ERR_raise(ERR_LIB_DH, ERR_R_ASN1_LIB);
+ goto err;
+ }
+
+ params->length = i2d_dhp(pkey, pkey->pkey.dh, ¶ms->data);
+ if (params->length <= 0) {
+ ERR_raise(ERR_LIB_DH, ERR_R_ASN1_LIB);
+ goto err;
+ }
+ params->type = V_ASN1_SEQUENCE;
+
+ /* Get private key into integer */
+ prkey = BN_to_ASN1_INTEGER(pkey->pkey.dh->priv_key, NULL);
+
+ if (prkey == NULL) {
+ ERR_raise(ERR_LIB_DH, DH_R_BN_ERROR);
+ goto err;
+ }
+
+ dplen = i2d_ASN1_INTEGER(prkey, &dp);
+
+ ASN1_STRING_clear_free(prkey);
+
+ if (dplen <= 0) {
+ ERR_raise(ERR_LIB_DH, DH_R_BN_ERROR);
+ goto err;
+ }
+
+ if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(pkey->ameth->pkey_id), 0,
+ V_ASN1_SEQUENCE, params, dp, dplen)) {
+ OPENSSL_clear_free(dp, dplen);
+ goto err;
+ }
+ return 1;
+
+ err:
+ ASN1_STRING_free(params);
+ return 0;
+}
static int dh_param_decode(EVP_PKEY *pkey,
- const unsigned char **pder, int derlen)
- {
- DH *dh;
- if (!(dh = d2i_dhp(pkey, pder, derlen)))
- {
- DHerr(DH_F_DH_PARAM_DECODE, ERR_R_DH_LIB);
- return 0;
- }
- EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, dh);
- return 1;
- }
+ const unsigned char **pder, int derlen)
+{
+ DH *dh;
+
+ if ((dh = d2i_dhp(pkey, pder, derlen)) == NULL)
+ return 0;
+ dh->dirty_cnt++;
+ EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, dh);
+ return 1;
+}
static int dh_param_encode(const EVP_PKEY *pkey, unsigned char **pder)
- {
- return i2d_dhp(pkey, pkey->pkey.dh, pder);
- }
-
-static int do_dh_print(BIO *bp, const DH *x, int indent,
- ASN1_PCTX *ctx, int ptype)
- {
- unsigned char *m=NULL;
- int reason=ERR_R_BUF_LIB,ret=0;
- size_t buf_len=0;
-
- const char *ktype = NULL;
-
- BIGNUM *priv_key, *pub_key;
-
- if (ptype == 2)
- priv_key = x->priv_key;
- else
- priv_key = NULL;
-
- if (ptype > 0)
- pub_key = x->pub_key;
- else
- pub_key = NULL;
-
- update_buflen(x->p, &buf_len);
-
- if (buf_len == 0)
- {
- reason = ERR_R_PASSED_NULL_PARAMETER;
- goto err;
- }
-
- update_buflen(x->g, &buf_len);
- update_buflen(x->q, &buf_len);
- update_buflen(x->j, &buf_len);
- update_buflen(x->counter, &buf_len);
- update_buflen(pub_key, &buf_len);
- update_buflen(priv_key, &buf_len);
-
- if (ptype == 2)
- ktype = "DH Private-Key";
- else if (ptype == 1)
- ktype = "DH Public-Key";
- else
- ktype = "DH Parameters";
-
- m= OPENSSL_malloc(buf_len+10);
- if (m == NULL)
- {
- reason=ERR_R_MALLOC_FAILURE;
- goto err;
- }
-
- BIO_indent(bp, indent, 128);
- if (BIO_printf(bp,"%s: (%d bit)\n", ktype, BN_num_bits(x->p)) <= 0)
- goto err;
- indent += 4;
-
- if (!ASN1_bn_print(bp,"private-key:",priv_key,m,indent)) goto err;
- if (!ASN1_bn_print(bp,"public-key:",pub_key,m,indent)) goto err;
-
- if (!ASN1_bn_print(bp,"prime:",x->p,m,indent)) goto err;
- if (!ASN1_bn_print(bp,"generator:",x->g,m,indent)) goto err;
- if (x->q && !ASN1_bn_print(bp,"subgroup order:",x->q,m,indent)) goto err;
- if (x->j && !ASN1_bn_print(bp,"subgroup factor:",x->j,m,indent))
- goto err;
- if (x->seed)
- {
- int i;
- BIO_indent(bp, indent, 128);
- BIO_puts(bp, "seed:");
- for (i=0; i < x->seedlen; i++)
- {
- if ((i%15) == 0)
- {
- if(BIO_puts(bp,"\n") <= 0
- || !BIO_indent(bp,indent+4,128))
- goto err;
- }
- if (BIO_printf(bp,"%02x%s", x->seed[i],
- ((i+1) == x->seedlen)?"":":") <= 0)
- goto err;
- }
- if (BIO_write(bp,"\n",1) <= 0) return(0);
- }
- if (x->counter && !ASN1_bn_print(bp,"counter:",x->counter,m,indent))
- goto err;
- if (x->length != 0)
- {
- BIO_indent(bp, indent, 128);
- if (BIO_printf(bp,"recommended-private-length: %d bits\n",
- (int)x->length) <= 0) goto err;
- }
-
-
- ret=1;
- if (0)
- {
-err:
- DHerr(DH_F_DO_DH_PRINT,reason);
- }
- if (m != NULL) OPENSSL_free(m);
- return(ret);
- }
+{
+ return i2d_dhp(pkey, pkey->pkey.dh, pder);
+}
+
+static int do_dh_print(BIO *bp, const DH *x, int indent, int ptype)
+{
+ int reason = ERR_R_BUF_LIB;
+ const char *ktype = NULL;
+ BIGNUM *priv_key, *pub_key;
+
+ if (ptype == 2)
+ priv_key = x->priv_key;
+ else
+ priv_key = NULL;
+
+ if (ptype > 0)
+ pub_key = x->pub_key;
+ else
+ pub_key = NULL;
+
+ if (x->params.p == NULL || (ptype == 2 && priv_key == NULL)
+ || (ptype > 0 && pub_key == NULL)) {
+ reason = ERR_R_PASSED_NULL_PARAMETER;
+ goto err;
+ }
+
+ if (ptype == 2)
+ ktype = "DH Private-Key";
+ else if (ptype == 1)
+ ktype = "DH Public-Key";
+ else
+ ktype = "DH Parameters";
+
+ if (!BIO_indent(bp, indent, 128)
+ || BIO_printf(bp, "%s: (%d bit)\n", ktype, DH_bits(x)) <= 0)
+ goto err;
+ indent += 4;
+
+ if (!ASN1_bn_print(bp, "private-key:", priv_key, NULL, indent))
+ goto err;
+ if (!ASN1_bn_print(bp, "public-key:", pub_key, NULL, indent))
+ goto err;
+
+ if (!ossl_ffc_params_print(bp, &x->params, indent))
+ goto err;
+
+ if (x->length != 0) {
+ if (!BIO_indent(bp, indent, 128)
+ || BIO_printf(bp, "recommended-private-length: %d bits\n",
+ (int)x->length) <= 0)
+ goto err;
+ }
+
+ return 1;
+
+ err:
+ ERR_raise(ERR_LIB_DH, reason);
+ return 0;
+}
static int int_dh_size(const EVP_PKEY *pkey)
- {
- return(DH_size(pkey->pkey.dh));
- }
+{
+ return DH_size(pkey->pkey.dh);
+}
static int dh_bits(const EVP_PKEY *pkey)
- {
- return BN_num_bits(pkey->pkey.dh->p);
- }
+{
+ return DH_bits(pkey->pkey.dh);
+}
+
+static int dh_security_bits(const EVP_PKEY *pkey)
+{
+ return DH_security_bits(pkey->pkey.dh);
+}
static int dh_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
- {
- if ( BN_cmp(a->pkey.dh->p,b->pkey.dh->p) ||
- BN_cmp(a->pkey.dh->g,b->pkey.dh->g))
- return 0;
- else if (a->ameth == &dhx_asn1_meth)
- {
- if (BN_cmp(a->pkey.dh->q,b->pkey.dh->q))
- return 0;
- }
- return 1;
- }
-
-static int int_dh_bn_cpy(BIGNUM **dst, const BIGNUM *src)
- {
- BIGNUM *a;
- if (src)
- {
- a = BN_dup(src);
- if (!a)
- return 0;
- }
- else
- a = NULL;
- if (*dst)
- BN_free(*dst);
- *dst = a;
- return 1;
- }
+{
+ return ossl_ffc_params_cmp(&a->pkey.dh->params, &b->pkey.dh->params,
+ a->ameth != &ossl_dhx_asn1_meth);
+}
static int int_dh_param_copy(DH *to, const DH *from, int is_x942)
- {
- if (is_x942 == -1)
- is_x942 = !!from->q;
- if (!int_dh_bn_cpy(&to->p, from->p))
- return 0;
- if (!int_dh_bn_cpy(&to->g, from->g))
- return 0;
- if (is_x942)
- {
- if (!int_dh_bn_cpy(&to->q, from->q))
- return 0;
- if (!int_dh_bn_cpy(&to->j, from->j))
- return 0;
- if(to->seed)
- {
- OPENSSL_free(to->seed);
- to->seed = NULL;
- to->seedlen = 0;
- }
- if (from->seed)
- {
- to->seed = BUF_memdup(from->seed, from->seedlen);
- if (!to->seed)
- return 0;
- to->seedlen = from->seedlen;
- }
- }
- else
- to->length = from->length;
- return 1;
- }
-
-
-DH *DHparams_dup(DH *dh)
- {
- DH *ret;
- ret = DH_new();
- if (!ret)
- return NULL;
- if (!int_dh_param_copy(ret, dh, -1))
- {
- DH_free(ret);
- return NULL;
- }
- return ret;
- }
+{
+ if (is_x942 == -1)
+ is_x942 = (from->params.q != NULL);
+ if (!ossl_ffc_params_copy(&to->params, &from->params))
+ return 0;
+ if (!is_x942)
+ to->length = from->length;
+ to->dirty_cnt++;
+ return 1;
+}
+
+DH *DHparams_dup(const DH *dh)
+{
+ DH *ret;
+ ret = DH_new();
+ if (ret == NULL)
+ return NULL;
+ if (!int_dh_param_copy(ret, dh, -1)) {
+ DH_free(ret);
+ return NULL;
+ }
+ return ret;
+}
static int dh_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
- {
- return int_dh_param_copy(to->pkey.dh, from->pkey.dh,
- from->ameth == &dhx_asn1_meth);
- }
+{
+ if (to->pkey.dh == NULL) {
+ to->pkey.dh = DH_new();
+ if (to->pkey.dh == NULL)
+ return 0;
+ }
+ return int_dh_param_copy(to->pkey.dh, from->pkey.dh,
+ from->ameth == &ossl_dhx_asn1_meth);
+}
static int dh_missing_parameters(const EVP_PKEY *a)
- {
- if (!a->pkey.dh->p || !a->pkey.dh->g)
- return 1;
- return 0;
- }
+{
+ return a->pkey.dh == NULL
+ || a->pkey.dh->params.p == NULL
+ || a->pkey.dh->params.g == NULL;
+}
static int dh_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
- {
- if (dh_cmp_parameters(a, b) == 0)
- return 0;
- if (BN_cmp(b->pkey.dh->pub_key,a->pkey.dh->pub_key) != 0)
- return 0;
- else
- return 1;
- }
+{
+ if (dh_cmp_parameters(a, b) == 0)
+ return 0;
+ if (BN_cmp(b->pkey.dh->pub_key, a->pkey.dh->pub_key) != 0)
+ return 0;
+ else
+ return 1;
+}
static int dh_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *ctx)
- {
- return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 0);
- }
+ ASN1_PCTX *ctx)
+{
+ return do_dh_print(bp, pkey->pkey.dh, indent, 0);
+}
static int dh_public_print(BIO *bp, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *ctx)
- {
- return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 1);
- }
+ ASN1_PCTX *ctx)
+{
+ return do_dh_print(bp, pkey->pkey.dh, indent, 1);
+}
static int dh_private_print(BIO *bp, const EVP_PKEY *pkey, int indent,
- ASN1_PCTX *ctx)
- {
- return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 2);
- }
+ ASN1_PCTX *ctx)
+{
+ return do_dh_print(bp, pkey->pkey.dh, indent, 2);
+}
int DHparams_print(BIO *bp, const DH *x)
- {
- return do_dh_print(bp, x, 4, NULL, 0);
- }
-
-const EVP_PKEY_ASN1_METHOD dh_asn1_meth =
- {
- EVP_PKEY_DH,
- EVP_PKEY_DH,
- 0,
-
- "DH",
- "OpenSSL PKCS#3 DH method",
-
- dh_pub_decode,
- dh_pub_encode,
- dh_pub_cmp,
- dh_public_print,
-
- dh_priv_decode,
- dh_priv_encode,
- dh_private_print,
-
- int_dh_size,
- dh_bits,
-
- dh_param_decode,
- dh_param_encode,
- dh_missing_parameters,
- dh_copy_parameters,
- dh_cmp_parameters,
- dh_param_print,
- 0,
-
- int_dh_free,
- 0
- };
-
-const EVP_PKEY_ASN1_METHOD dhx_asn1_meth =
- {
- EVP_PKEY_DHX,
- EVP_PKEY_DHX,
- 0,
-
- "X9.42 DH",
- "OpenSSL X9.42 DH method",
-
- dh_pub_decode,
- dh_pub_encode,
- dh_pub_cmp,
- dh_public_print,
-
- dh_priv_decode,
- dh_priv_encode,
- dh_private_print,
-
- int_dh_size,
- dh_bits,
-
- dh_param_decode,
- dh_param_encode,
- dh_missing_parameters,
- dh_copy_parameters,
- dh_cmp_parameters,
- dh_param_print,
- 0,
-
- int_dh_free,
- 0
- };
+{
+ return do_dh_print(bp, x, 4, 0);
+}
+
+static int dh_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
+{
+ DH *dh;
+ switch (op) {
+ case ASN1_PKEY_CTRL_SET1_TLS_ENCPT:
+ /* We should only be here if we have a legacy key */
+ if (!ossl_assert(evp_pkey_is_legacy(pkey)))
+ return 0;
+ dh = (DH *) evp_pkey_get0_DH_int(pkey);
+ if (dh == NULL)
+ return 0;
+ return ossl_dh_buf2key(dh, arg2, arg1);
+ case ASN1_PKEY_CTRL_GET1_TLS_ENCPT:
+ dh = (DH *) EVP_PKEY_get0_DH(pkey);
+ if (dh == NULL)
+ return 0;
+ return ossl_dh_key2buf(dh, arg2, 0, 1);
+ default:
+ return -2;
+ }
+}
+
+static int dhx_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
+{
+ switch (op) {
+ default:
+ return -2;
+ }
+
+}
+
+static int dh_pkey_public_check(const EVP_PKEY *pkey)
+{
+ DH *dh = pkey->pkey.dh;
+
+ if (dh->pub_key == NULL) {
+ ERR_raise(ERR_LIB_DH, DH_R_MISSING_PUBKEY);
+ return 0;
+ }
+
+ return DH_check_pub_key_ex(dh, dh->pub_key);
+}
+
+static int dh_pkey_param_check(const EVP_PKEY *pkey)
+{
+ DH *dh = pkey->pkey.dh;
+
+ return DH_check_ex(dh);
+}
+
+static size_t dh_pkey_dirty_cnt(const EVP_PKEY *pkey)
+{
+ return pkey->pkey.dh->dirty_cnt;
+}
+
+static int dh_pkey_export_to(const EVP_PKEY *from, void *to_keydata,
+ OSSL_FUNC_keymgmt_import_fn *importer,
+ OSSL_LIB_CTX *libctx, const char *propq)
+{
+ DH *dh = from->pkey.dh;
+ OSSL_PARAM_BLD *tmpl;
+ const BIGNUM *p = DH_get0_p(dh), *g = DH_get0_g(dh), *q = DH_get0_q(dh);
+ long l = DH_get_length(dh);
+ const BIGNUM *pub_key = DH_get0_pub_key(dh);
+ const BIGNUM *priv_key = DH_get0_priv_key(dh);
+ OSSL_PARAM *params = NULL;
+ int selection = 0;
+ int rv = 0;
+
+ if (p == NULL || g == NULL)
+ return 0;
+
+ tmpl = OSSL_PARAM_BLD_new();
+ if (tmpl == NULL)
+ return 0;
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_P, p)
+ || !OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_G, g))
+ goto err;
+ if (q != NULL) {
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_Q, q))
+ goto err;
+ }
+ selection |= OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS;
+ if (l > 0) {
+ if (!OSSL_PARAM_BLD_push_long(tmpl, OSSL_PKEY_PARAM_DH_PRIV_LEN, l))
+ goto err;
+ selection |= OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS;
+ }
+ if (pub_key != NULL) {
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_PUB_KEY, pub_key))
+ goto err;
+ selection |= OSSL_KEYMGMT_SELECT_PUBLIC_KEY;
+ }
+ if (priv_key != NULL) {
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_PRIV_KEY,
+ priv_key))
+ goto err;
+ selection |= OSSL_KEYMGMT_SELECT_PRIVATE_KEY;
+ }
+
+ if ((params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL)
+ goto err;
+
+ /* We export, the provider imports */
+ rv = importer(to_keydata, selection, params);
+
+ OSSL_PARAM_free(params);
+err:
+ OSSL_PARAM_BLD_free(tmpl);
+ return rv;
+}
+
+static int dh_pkey_import_from_type(const OSSL_PARAM params[], void *vpctx,
+ int type)
+{
+ EVP_PKEY_CTX *pctx = vpctx;
+ EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(pctx);
+ DH *dh = ossl_dh_new_ex(pctx->libctx);
+
+ if (dh == NULL) {
+ ERR_raise(ERR_LIB_DH, ERR_R_DH_LIB);
+ return 0;
+ }
+ DH_clear_flags(dh, DH_FLAG_TYPE_MASK);
+ DH_set_flags(dh, type == EVP_PKEY_DH ? DH_FLAG_TYPE_DH : DH_FLAG_TYPE_DHX);
+
+ if (!ossl_dh_params_fromdata(dh, params)
+ || !ossl_dh_key_fromdata(dh, params, 1)
+ || !EVP_PKEY_assign(pkey, type, dh)) {
+ DH_free(dh);
+ return 0;
+ }
+ return 1;
+}
+
+static int dh_pkey_import_from(const OSSL_PARAM params[], void *vpctx)
+{
+ return dh_pkey_import_from_type(params, vpctx, EVP_PKEY_DH);
+}
+
+static int dhx_pkey_import_from(const OSSL_PARAM params[], void *vpctx)
+{
+ return dh_pkey_import_from_type(params, vpctx, EVP_PKEY_DHX);
+}
+
+static int dh_pkey_copy(EVP_PKEY *to, EVP_PKEY *from)
+{
+ DH *dh = from->pkey.dh;
+ DH *dupkey = NULL;
+ int ret;
+
+ if (dh != NULL) {
+ dupkey = ossl_dh_dup(dh, OSSL_KEYMGMT_SELECT_ALL);
+ if (dupkey == NULL)
+ return 0;
+ }
+
+ ret = EVP_PKEY_assign(to, from->type, dupkey);
+ if (!ret)
+ DH_free(dupkey);
+ return ret;
+}
+const EVP_PKEY_ASN1_METHOD ossl_dh_asn1_meth = {
+ EVP_PKEY_DH,
+ EVP_PKEY_DH,
+ 0,
+
+ "DH",
+ "OpenSSL PKCS#3 DH method",
+
+ dh_pub_decode,
+ dh_pub_encode,
+ dh_pub_cmp,
+ dh_public_print,
+
+ dh_priv_decode,
+ dh_priv_encode,
+ dh_private_print,
+
+ int_dh_size,
+ dh_bits,
+ dh_security_bits,
+
+ dh_param_decode,
+ dh_param_encode,
+ dh_missing_parameters,
+ dh_copy_parameters,
+ dh_cmp_parameters,
+ dh_param_print,
+ 0,
+
+ int_dh_free,
+ dh_pkey_ctrl,
+
+ 0, 0, 0, 0, 0,
+
+ 0,
+ dh_pkey_public_check,
+ dh_pkey_param_check,
+
+ 0, 0, 0, 0,
+
+ dh_pkey_dirty_cnt,
+ dh_pkey_export_to,
+ dh_pkey_import_from,
+ dh_pkey_copy
+};
+
+const EVP_PKEY_ASN1_METHOD ossl_dhx_asn1_meth = {
+ EVP_PKEY_DHX,
+ EVP_PKEY_DHX,
+ 0,
+
+ "X9.42 DH",
+ "OpenSSL X9.42 DH method",
+
+ dh_pub_decode,
+ dh_pub_encode,
+ dh_pub_cmp,
+ dh_public_print,
+
+ dh_priv_decode,
+ dh_priv_encode,
+ dh_private_print,
+
+ int_dh_size,
+ dh_bits,
+ dh_security_bits,
+
+ dh_param_decode,
+ dh_param_encode,
+ dh_missing_parameters,
+ dh_copy_parameters,
+ dh_cmp_parameters,
+ dh_param_print,
+ 0,
+
+ int_dh_free,
+ dhx_pkey_ctrl,
+
+ 0, 0, 0, 0, 0,
+
+ 0,
+ dh_pkey_public_check,
+ dh_pkey_param_check,
+ 0, 0, 0, 0,
+ dh_pkey_dirty_cnt,
+ dh_pkey_export_to,
+ dhx_pkey_import_from,
+ dh_pkey_copy
+};
projects / openssl.git / blobdiff