/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * 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 <openssl/bn.h>
+#ifndef FIPS_MODULE
+# include <openssl/engine.h>
+#endif
+#include <openssl/obj_mac.h>
+#include <openssl/core_names.h>
#include "internal/cryptlib.h"
#include "internal/refcount.h"
-#include <openssl/bn.h>
-#include "dh_locl.h"
-#include <openssl/engine.h>
+#include "crypto/evp.h"
+#include "crypto/dh.h"
+#include "dh_local.h"
+static DH *dh_new_intern(ENGINE *engine, OSSL_LIB_CTX *libctx);
+
+#ifndef FIPS_MODULE
int DH_set_method(DH *dh, const DH_METHOD *meth)
{
/*
return 1;
}
+const DH_METHOD *ossl_dh_get_method(const DH *dh)
+{
+ return dh->meth;
+}
+# ifndef OPENSSL_NO_DEPRECATED_3_0
DH *DH_new(void)
{
- return DH_new_method(NULL);
+ return dh_new_intern(NULL, NULL);
}
+# endif
DH *DH_new_method(ENGINE *engine)
+{
+ return dh_new_intern(engine, NULL);
+}
+#endif /* !FIPS_MODULE */
+
+DH *ossl_dh_new_ex(OSSL_LIB_CTX *libctx)
+{
+ return dh_new_intern(NULL, libctx);
+}
+
+static DH *dh_new_intern(ENGINE *engine, OSSL_LIB_CTX *libctx)
{
DH *ret = OPENSSL_zalloc(sizeof(*ret));
- if (ret == NULL) {
- DHerr(DH_F_DH_NEW_METHOD, ERR_R_MALLOC_FAILURE);
+ if (ret == NULL)
return NULL;
- }
- ret->references = 1;
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
- DHerr(DH_F_DH_NEW_METHOD, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_DH, ERR_R_CRYPTO_LIB);
OPENSSL_free(ret);
return NULL;
}
+ if (!CRYPTO_NEW_REF(&ret->references, 1)) {
+ CRYPTO_THREAD_lock_free(ret->lock);
+ OPENSSL_free(ret);
+ return NULL;
+ }
+
+ ret->libctx = libctx;
ret->meth = DH_get_default_method();
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(FIPS_MODULE) && !defined(OPENSSL_NO_ENGINE)
ret->flags = ret->meth->flags; /* early default init */
if (engine) {
if (!ENGINE_init(engine)) {
- DHerr(DH_F_DH_NEW_METHOD, ERR_R_ENGINE_LIB);
+ ERR_raise(ERR_LIB_DH, ERR_R_ENGINE_LIB);
goto err;
}
ret->engine = engine;
if (ret->engine) {
ret->meth = ENGINE_get_DH(ret->engine);
if (ret->meth == NULL) {
- DHerr(DH_F_DH_NEW_METHOD, ERR_R_ENGINE_LIB);
+ ERR_raise(ERR_LIB_DH, ERR_R_ENGINE_LIB);
goto err;
}
}
ret->flags = ret->meth->flags;
+#ifndef FIPS_MODULE
if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_DH, ret, &ret->ex_data))
goto err;
+#endif /* FIPS_MODULE */
+
+ ossl_ffc_params_init(&ret->params);
if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
- DHerr(DH_F_DH_NEW_METHOD, ERR_R_INIT_FAIL);
-err:
- DH_free(ret);
- ret = NULL;
+ ERR_raise(ERR_LIB_DH, ERR_R_INIT_FAIL);
+ goto err;
}
return ret;
+
+ err:
+ DH_free(ret);
+ return NULL;
}
void DH_free(DH *r)
if (r == NULL)
return;
- CRYPTO_DOWN_REF(&r->references, &i, r->lock);
+ CRYPTO_DOWN_REF(&r->references, &i);
REF_PRINT_COUNT("DH", r);
if (i > 0)
return;
REF_ASSERT_ISNT(i < 0);
- if (r->meth->finish)
+ if (r->meth != NULL && r->meth->finish != NULL)
r->meth->finish(r);
-#ifndef OPENSSL_NO_ENGINE
+#if !defined(FIPS_MODULE)
+# if !defined(OPENSSL_NO_ENGINE)
ENGINE_finish(r->engine);
-#endif
-
+# endif
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DH, r, &r->ex_data);
+#endif
CRYPTO_THREAD_lock_free(r->lock);
+ CRYPTO_FREE_REF(&r->references);
- BN_clear_free(r->p);
- BN_clear_free(r->g);
- BN_clear_free(r->q);
- BN_clear_free(r->j);
- OPENSSL_free(r->seed);
- BN_clear_free(r->counter);
+ ossl_ffc_params_cleanup(&r->params);
BN_clear_free(r->pub_key);
BN_clear_free(r->priv_key);
OPENSSL_free(r);
{
int i;
- if (CRYPTO_UP_REF(&r->references, &i, r->lock) <= 0)
+ if (CRYPTO_UP_REF(&r->references, &i) <= 0)
return 0;
REF_PRINT_COUNT("DH", r);
return ((i > 1) ? 1 : 0);
}
+void ossl_dh_set0_libctx(DH *d, OSSL_LIB_CTX *libctx)
+{
+ d->libctx = libctx;
+}
+
+#ifndef FIPS_MODULE
int DH_set_ex_data(DH *d, int idx, void *arg)
{
return CRYPTO_set_ex_data(&d->ex_data, idx, arg);
}
-void *DH_get_ex_data(DH *d, int idx)
+void *DH_get_ex_data(const DH *d, int idx)
{
return CRYPTO_get_ex_data(&d->ex_data, idx);
}
+#endif
int DH_bits(const DH *dh)
{
- return BN_num_bits(dh->p);
+ if (dh->params.p != NULL)
+ return BN_num_bits(dh->params.p);
+ return -1;
}
int DH_size(const DH *dh)
{
- return BN_num_bytes(dh->p);
+ if (dh->params.p != NULL)
+ return BN_num_bytes(dh->params.p);
+ return -1;
}
int DH_security_bits(const DH *dh)
{
int N;
- if (dh->q)
- N = BN_num_bits(dh->q);
+
+ if (dh->params.q != NULL)
+ N = BN_num_bits(dh->params.q);
else if (dh->length)
N = dh->length;
else
N = -1;
- return BN_security_bits(BN_num_bits(dh->p), N);
+ if (dh->params.p != NULL)
+ return BN_security_bits(BN_num_bits(dh->params.p), N);
+ return -1;
}
-
void DH_get0_pqg(const DH *dh,
const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
{
- if (p != NULL)
- *p = dh->p;
- if (q != NULL)
- *q = dh->q;
- if (g != NULL)
- *g = dh->g;
+ ossl_ffc_params_get0_pqg(&dh->params, p, q, g);
}
int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g)
{
- /* If the fields p and g in d are NULL, the corresponding input
+ /*
+ * If the fields p and g in dh are NULL, the corresponding input
* parameters MUST be non-NULL. q may remain NULL.
*/
- if ((dh->p == NULL && p == NULL)
- || (dh->g == NULL && g == NULL))
+ if ((dh->params.p == NULL && p == NULL)
+ || (dh->params.g == NULL && g == NULL))
return 0;
- if (p != NULL) {
- BN_free(dh->p);
- dh->p = p;
- }
- if (q != NULL) {
- BN_free(dh->q);
- dh->q = q;
- }
- if (g != NULL) {
- BN_free(dh->g);
- dh->g = g;
- }
-
- if (q != NULL) {
- dh->length = BN_num_bits(q);
- }
-
+ ossl_ffc_params_set0_pqg(&dh->params, p, q, g);
+ ossl_dh_cache_named_group(dh);
+ dh->dirty_cnt++;
return 1;
}
int DH_set_length(DH *dh, long length)
{
dh->length = length;
+ dh->dirty_cnt++;
return 1;
}
int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key)
{
if (pub_key != NULL) {
- BN_free(dh->pub_key);
+ BN_clear_free(dh->pub_key);
dh->pub_key = pub_key;
}
if (priv_key != NULL) {
- BN_free(dh->priv_key);
+ BN_clear_free(dh->priv_key);
dh->priv_key = priv_key;
}
+ dh->dirty_cnt++;
return 1;
}
const BIGNUM *DH_get0_p(const DH *dh)
{
- return dh->p;
+ return dh->params.p;
}
const BIGNUM *DH_get0_q(const DH *dh)
{
- return dh->q;
+ return dh->params.q;
}
const BIGNUM *DH_get0_g(const DH *dh)
{
- return dh->g;
+ return dh->params.g;
}
const BIGNUM *DH_get0_priv_key(const DH *dh)
dh->flags |= flags;
}
+#ifndef FIPS_MODULE
ENGINE *DH_get0_engine(DH *dh)
{
return dh->engine;
}
+#endif /*FIPS_MODULE */
+
+FFC_PARAMS *ossl_dh_get0_params(DH *dh)
+{
+ return &dh->params;
+}
+int ossl_dh_get0_nid(const DH *dh)
+{
+ return dh->params.nid;
+}
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