[openssl] master update

Dr. Paul Dale pauli at openssl.org
Thu Feb 20 09:58:18 UTC 2020


The branch master has been updated
       via  ada66e78ef535fe80e422bbbadffe8e7863d457c (commit)
       via  0ad05b190ebb3a62f8519c8c4c721304c2405849 (commit)
       via  2c64df660fd3efe30db0c48e8218ab87f5189c85 (commit)
      from  c5f8713443c8d606ff149b12c478cd6162f2a7ac (commit)


- Log -----------------------------------------------------------------
commit ada66e78ef535fe80e422bbbadffe8e7863d457c
Author: Pauli <paul.dale at oracle.com>
Date:   Mon Feb 3 19:05:31 2020 +1000

    Deprecate the low level Diffie-Hellman functions.
    
    Use of the low level DH functions has been informally discouraged for a
    long time.  We now formally deprecate them.
    
    Reviewed-by: Richard Levitte <levitte at openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/11024)

commit 0ad05b190ebb3a62f8519c8c4c721304c2405849
Author: Pauli <paul.dale at oracle.com>
Date:   Sun Feb 16 17:31:04 2020 +1000

    DH: add CHANGES entry listing the deprecated DH functions.
    
    Reviewed-by: Richard Levitte <levitte at openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/11024)

commit 2c64df660fd3efe30db0c48e8218ab87f5189c85
Author: Pauli <paul.dale at oracle.com>
Date:   Mon Feb 3 16:03:12 2020 +1000

    DH: fix header file indentation
    
    Reviewed-by: Richard Levitte <levitte at openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/11024)

-----------------------------------------------------------------------

Summary of changes:
 CHANGES                                            |  23 ++
 apps/lib/s_cb.c                                    |  15 +-
 apps/progs.pl                                      |   1 -
 crypto/dh/dh_ameth.c                               |   6 +
 crypto/dh/dh_asn1.c                                |   6 +
 crypto/dh/dh_check.c                               |   6 +
 crypto/dh/dh_depr.c                                |   6 +
 crypto/dh/dh_gen.c                                 |   6 +
 crypto/dh/dh_group_params.c                        |   6 +
 crypto/dh/dh_kdf.c                                 |   6 +
 crypto/dh/dh_key.c                                 |   6 +
 crypto/dh/dh_lib.c                                 |   6 +
 crypto/dh/dh_meth.c                                |   6 +
 crypto/dh/dh_pmeth.c                               |   2 +-
 crypto/dh/dh_prn.c                                 |   6 +
 crypto/dh/dh_rfc5114.c                             |   6 +
 crypto/evp/pmeth_lib.c                             |   6 +
 doc/man3/DH_generate_key.pod                       |  13 +
 doc/man3/DH_generate_parameters.pod                |  11 +
 doc/man3/DH_get0_pqg.pod                           |  13 +-
 doc/man3/DH_meth_new.pod                           |   9 +
 doc/man3/DH_new_by_nid.pod                         |  12 +-
 doc/man3/DH_set_method.pod                         |  11 +
 doc/man3/DH_size.pod                               |  11 +
 doc/man3/DSA_dup_DH.pod                            |  12 +
 fuzz/asn1.c                                        |   4 +-
 include/openssl/dh.h                               | 448 +++++++++++----------
 include/openssl/dsa.h                              |   4 +-
 providers/implementations/exchange/dh_exch.c       |   6 +
 providers/implementations/keymgmt/dh_kmgmt.c       |   6 +
 .../implementations/serializers/serializer_dh.c    |   6 +
 .../serializers/serializer_dh_param.c              |   6 +
 .../serializers/serializer_dh_priv.c               |   6 +
 .../serializers/serializer_dh_pub.c                |   6 +
 ssl/s3_lib.c                                       |   6 +-
 ssl/ssl_local.h                                    |   2 +-
 ssl/statem/extensions_srvr.c                       |   2 +-
 ssl/statem/statem_clnt.c                           |  15 +-
 test/build.info                                    |  22 +-
 test/dhtest.c                                      |   6 +
 test/ssltest_old.c                                 |   6 +
 util/libcrypto.num                                 |  96 ++---
 42 files changed, 560 insertions(+), 298 deletions(-)

diff --git a/CHANGES b/CHANGES
index 016743a83f..ee4d953f71 100644
--- a/CHANGES
+++ b/CHANGES
@@ -74,6 +74,29 @@
      programs respectively.
      [Paul Dale]
 
+  *) All of the low level DH functions have been deprecated including:
+
+     DH_OpenSSL, DH_set_default_method, DH_get_default_method, DH_set_method,
+     DH_new_method, DH_bits, DH_size, DH_security_bits, DH_get_ex_new_index,
+     DH_set_ex_data, DH_get_ex_data, DH_generate_parameters_ex,
+     DH_check_params_ex, DH_check_ex, DH_check_pub_key_ex,
+     DH_check, DH_check_pub_key, DH_generate_key, DH_compute_key,
+     DH_compute_key_padded, DHparams_print_fp, DHparams_print, DH_get_nid,
+     DH_KDF_X9_42, DH_get0_engine, DH_get_length, DH_set_length, DH_meth_new,
+     DH_meth_free, DH_meth_dup, DH_meth_get0_name, DH_meth_set1_name,
+     DH_meth_get_flags, DH_meth_set_flags, DH_meth_get0_app_data,
+     DH_meth_set0_app_data, DH_meth_get_generate_key,
+     DH_meth_set_generate_key, DH_meth_get_compute_key,
+     DH_meth_set_compute_key, DH_meth_get_bn_mod_exp,
+     DH_meth_set_bn_mod_exp, DH_meth_get_init, DH_meth_set_init,
+     DH_meth_get_finish, DH_meth_set_finish, DH_meth_get_generate_params
+     and DH_meth_set_generate_params.
+
+     Use of these low level functions has been informally discouraged for a long
+     time.  Instead applications should use L<EVP_PKEY_derive_init(3)>
+     and L<EVP_PKEY_derive(3)>.
+     [Paul Dale]
+
   *) All of the low level DSA functions have been deprecated including:
 
      DSA_do_sign, DSA_do_verify, DSA_OpenSSL, DSA_set_default_method,
diff --git a/apps/lib/s_cb.c b/apps/lib/s_cb.c
index 48fd7f4af5..2e0e9b2407 100644
--- a/apps/lib/s_cb.c
+++ b/apps/lib/s_cb.c
@@ -1434,7 +1434,20 @@ static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
     case SSL_SECOP_OTHER_DH:
         {
             DH *dh = other;
-            BIO_printf(sdb->out, "%d", DH_bits(dh));
+            EVP_PKEY *pkey = EVP_PKEY_new();
+            int fail = 1;
+
+            if (pkey != NULL) {
+                if (EVP_PKEY_set1_DH(pkey, dh)) {
+                    BIO_printf(sdb->out, "%d", EVP_PKEY_bits(pkey));
+                    fail = 0;
+                }
+
+                EVP_PKEY_free(pkey);
+            }
+            if (fail)
+                BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x",
+                           op);
             break;
         }
 #endif
diff --git a/apps/progs.pl b/apps/progs.pl
index 1d8c305713..03553efb23 100644
--- a/apps/progs.pl
+++ b/apps/progs.pl
@@ -92,7 +92,6 @@ EOF
 
     my %cmd_disabler = (
         ciphers  => "sock",
-        gendh    => "dh",
         pkcs12   => "des",
     );
     my %cmd_deprecated = (
diff --git a/crypto/dh/dh_ameth.c b/crypto/dh/dh_ameth.c
index bee414abf7..14c0842455 100644
--- a/crypto/dh/dh_ameth.c
+++ b/crypto/dh/dh_ameth.c
@@ -7,6 +7,12 @@
  * 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 "internal/cryptlib.h"
 #include <openssl/x509.h>
diff --git a/crypto/dh/dh_asn1.c b/crypto/dh/dh_asn1.c
index 829cc87464..940d119d3c 100644
--- a/crypto/dh/dh_asn1.c
+++ b/crypto/dh/dh_asn1.c
@@ -7,6 +7,12 @@
  * 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 "internal/cryptlib.h"
 #include <openssl/bn.h>
diff --git a/crypto/dh/dh_check.c b/crypto/dh/dh_check.c
index 4832230f6c..85ef17b36f 100644
--- a/crypto/dh/dh_check.c
+++ b/crypto/dh/dh_check.c
@@ -7,6 +7,12 @@
  * 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 "internal/cryptlib.h"
 #include <openssl/bn.h>
diff --git a/crypto/dh/dh_depr.c b/crypto/dh/dh_depr.c
index 09403f6ad5..33689d8e1c 100644
--- a/crypto/dh/dh_depr.c
+++ b/crypto/dh/dh_depr.c
@@ -9,6 +9,12 @@
 
 /* This file contains deprecated functions as wrappers to the new ones */
 
+/*
+ * DH low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
 #include <openssl/opensslconf.h>
 #ifdef OPENSSL_NO_DEPRECATED_0_9_8
 NON_EMPTY_TRANSLATION_UNIT
diff --git a/crypto/dh/dh_gen.c b/crypto/dh/dh_gen.c
index 89264e9fa8..8e2b773703 100644
--- a/crypto/dh/dh_gen.c
+++ b/crypto/dh/dh_gen.c
@@ -12,6 +12,12 @@
  * dh_depr.c as wrappers to these ones.  - Geoff
  */
 
+/*
+ * DH low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
 #include <stdio.h>
 #include "internal/cryptlib.h"
 #include <openssl/bn.h>
diff --git a/crypto/dh/dh_group_params.c b/crypto/dh/dh_group_params.c
index 6c057d1f1f..d2dd258248 100644
--- a/crypto/dh/dh_group_params.c
+++ b/crypto/dh/dh_group_params.c
@@ -9,6 +9,12 @@
 
 /* DH parameters from RFC7919 and RFC3526 */
 
+/*
+ * DH low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
 #include <stdio.h>
 #include "internal/cryptlib.h"
 #include "dh_local.h"
diff --git a/crypto/dh/dh_kdf.c b/crypto/dh/dh_kdf.c
index 23bc8acb73..e054aaeff9 100644
--- a/crypto/dh/dh_kdf.c
+++ b/crypto/dh/dh_kdf.c
@@ -7,6 +7,12 @@
  * 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 "e_os.h"
 
 #ifndef OPENSSL_NO_CMS
diff --git a/crypto/dh/dh_key.c b/crypto/dh/dh_key.c
index 14d35466f1..5748be810f 100644
--- a/crypto/dh/dh_key.c
+++ b/crypto/dh/dh_key.c
@@ -7,6 +7,12 @@
  * 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 "internal/cryptlib.h"
 #include "dh_local.h"
diff --git a/crypto/dh/dh_lib.c b/crypto/dh/dh_lib.c
index e6fc3ef2c5..d7fe850f58 100644
--- a/crypto/dh/dh_lib.c
+++ b/crypto/dh/dh_lib.c
@@ -7,6 +7,12 @@
  * 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>
 #include <openssl/engine.h>
diff --git a/crypto/dh/dh_meth.c b/crypto/dh/dh_meth.c
index be04b76a44..74f1891c83 100644
--- a/crypto/dh/dh_meth.c
+++ b/crypto/dh/dh_meth.c
@@ -7,6 +7,12 @@
  * 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 "dh_local.h"
 #include <string.h>
 #include <openssl/err.h>
diff --git a/crypto/dh/dh_pmeth.c b/crypto/dh/dh_pmeth.c
index 3b163bbe4e..5a83b483dd 100644
--- a/crypto/dh/dh_pmeth.c
+++ b/crypto/dh/dh_pmeth.c
@@ -8,7 +8,7 @@
  */
 
 /*
- * DSA low level APIs are deprecated for public use, but still ok for
+ * DH & DSA low level APIs are deprecated for public use, but still ok for
  * internal use.
  */
 #include "internal/deprecated.h"
diff --git a/crypto/dh/dh_prn.c b/crypto/dh/dh_prn.c
index d0e1ab3d06..28027a4a4f 100644
--- a/crypto/dh/dh_prn.c
+++ b/crypto/dh/dh_prn.c
@@ -7,6 +7,12 @@
  * 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 "internal/cryptlib.h"
 #include <openssl/evp.h>
diff --git a/crypto/dh/dh_rfc5114.c b/crypto/dh/dh_rfc5114.c
index 3bbfea12d3..c542afc1e9 100644
--- a/crypto/dh/dh_rfc5114.c
+++ b/crypto/dh/dh_rfc5114.c
@@ -7,6 +7,12 @@
  * 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 "internal/cryptlib.h"
 #include "dh_local.h"
diff --git a/crypto/evp/pmeth_lib.c b/crypto/evp/pmeth_lib.c
index f4bc49fe0f..49af63845e 100644
--- a/crypto/evp/pmeth_lib.c
+++ b/crypto/evp/pmeth_lib.c
@@ -8,6 +8,12 @@
  * 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 <stdlib.h>
 #include <openssl/engine.h>
diff --git a/doc/man3/DH_generate_key.pod b/doc/man3/DH_generate_key.pod
index babc91fef1..35fcc020b0 100644
--- a/doc/man3/DH_generate_key.pod
+++ b/doc/man3/DH_generate_key.pod
@@ -8,12 +8,20 @@ DH_generate_key, DH_compute_key - perform Diffie-Hellman key exchange
 
  #include <openssl/dh.h>
 
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
  int DH_generate_key(DH *dh);
 
  int DH_compute_key(unsigned char *key, BIGNUM *pub_key, DH *dh);
 
 =head1 DESCRIPTION
 
+Both of the functions described on this page are deprecated.
+Applications should instead use L<EVP_PKEY_derive_init(3)>
+and L<EVP_PKEY_derive(3)>.
+
 DH_generate_key() performs the first step of a Diffie-Hellman key
 exchange by generating private and public DH values. By calling
 DH_compute_key(), these are combined with the other party's public
@@ -40,8 +48,13 @@ The error codes can be obtained by L<ERR_get_error(3)>.
 
 =head1 SEE ALSO
 
+L<EVP_PKEY_derive(3)>,
 L<DH_new(3)>, L<ERR_get_error(3)>, L<RAND_bytes(3)>, L<DH_size(3)>
 
+=head1 HISTORY
+
+Both of these functions were deprecated in OpenSSL 3.0.
+
 =head1 COPYRIGHT
 
 Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
diff --git a/doc/man3/DH_generate_parameters.pod b/doc/man3/DH_generate_parameters.pod
index 4908dcf515..a01b940795 100644
--- a/doc/man3/DH_generate_parameters.pod
+++ b/doc/man3/DH_generate_parameters.pod
@@ -12,6 +12,10 @@ parameters
 
  #include <openssl/dh.h>
 
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
  int DH_generate_parameters_ex(DH *dh, int prime_len, int generator, BN_GENCB *cb);
 
  int DH_check(DH *dh, int *codes);
@@ -30,6 +34,11 @@ L<openssl_user_macros(7)>:
 
 =head1 DESCRIPTION
 
+All of the functions described on this page are deprecated.
+Applications should instead use L<EVP_PKEY_check(3)>,
+L<EVP_PKEY_public_check(3)>, L<EVP_PKEY_private_check(3)> and
+L<EVP_PKEY_param_check(3)>.
+
 DH_generate_parameters_ex() generates Diffie-Hellman parameters that can
 be shared among a group of users, and stores them in the provided B<DH>
 structure. The pseudo-random number generator must be
@@ -144,6 +153,8 @@ L<DH_free(3)>
 
 =head1 HISTORY
 
+All of these functions were deprecated in OpenSSL 3.0.
+
 DH_generate_parameters() was deprecated in OpenSSL 0.9.8; use
 DH_generate_parameters_ex() instead.
 
diff --git a/doc/man3/DH_get0_pqg.pod b/doc/man3/DH_get0_pqg.pod
index 4883b670a0..ab49a325f8 100644
--- a/doc/man3/DH_get0_pqg.pod
+++ b/doc/man3/DH_get0_pqg.pod
@@ -26,6 +26,11 @@ DH_get_length, DH_set_length - Routines for getting and setting data in a DH obj
  void DH_clear_flags(DH *dh, int flags);
  int DH_test_flags(const DH *dh, int flags);
  void DH_set_flags(DH *dh, int flags);
+
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
  ENGINE *DH_get0_engine(DH *d);
  long DH_get_length(const DH *dh);
  int DH_set_length(DH *dh, long length);
@@ -78,12 +83,13 @@ zero if none of the flags are set. DH_clear_flags() clears the specified flags
 within the DH object.
 
 DH_get0_engine() returns a handle to the ENGINE that has been set for this DH
-object, or NULL if no such ENGINE has been set.
+object, or NULL if no such ENGINE has been set. This function is deprecated.
 
 The DH_get_length() and DH_set_length() functions get and set the optional
 length parameter associated with this DH object. If the length is nonzero then
 it is used, otherwise it is ignored. The B<length> parameter indicates the
-length of the secret exponent (private key) in bits.
+length of the secret exponent (private key) in bits. These functions are
+deprecated.
 
 =head1 NOTES
 
@@ -114,6 +120,9 @@ L<DH_set_method(3)>, L<DH_size(3)>, L<DH_meth_new(3)>
 
 =head1 HISTORY
 
+The DH_get0_engine(), DH_get_length() and DH_set_length() functions were
+deprecated in OpenSSL 3.0.
+
 The functions described here were added in OpenSSL 1.1.0.
 
 =head1 COPYRIGHT
diff --git a/doc/man3/DH_meth_new.pod b/doc/man3/DH_meth_new.pod
index 652abaa61a..38c3bd3114 100644
--- a/doc/man3/DH_meth_new.pod
+++ b/doc/man3/DH_meth_new.pod
@@ -14,6 +14,10 @@ DH_meth_set_generate_params - Routines to build up DH methods
 
  #include <openssl/dh.h>
 
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
  DH_METHOD *DH_meth_new(const char *name, int flags);
 
  void DH_meth_free(DH_METHOD *dhm);
@@ -58,6 +62,9 @@ DH_meth_set_generate_params - Routines to build up DH methods
 
 =head1 DESCRIPTION
 
+All of the functions described on this page are deprecated.
+Applications should instead use the provider APIs.
+
 The B<DH_METHOD> type is a structure used for the provision of custom DH
 implementations. It provides a set of functions used by OpenSSL for the
 implementation of the various DH capabilities.
@@ -153,6 +160,8 @@ L<DH_set_method(3)>, L<DH_size(3)>, L<DH_get0_pqg(3)>
 
 =head1 HISTORY
 
+All of these functions were deprecated in OpenSSL 3.0.
+
 The functions described here were added in OpenSSL 1.1.0.
 
 =head1 COPYRIGHT
diff --git a/doc/man3/DH_new_by_nid.pod b/doc/man3/DH_new_by_nid.pod
index 5fd71ffb5a..3456b9d57e 100644
--- a/doc/man3/DH_new_by_nid.pod
+++ b/doc/man3/DH_new_by_nid.pod
@@ -8,6 +8,11 @@ DH_new_by_nid, DH_get_nid - get or find DH named parameters
 
  #include <openssl/dh.h>
  DH *DH_new_by_nid(int nid);
+
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
  int *DH_get_nid(DH *dh);
 
 =head1 DESCRIPTION
@@ -18,10 +23,9 @@ B<NID_ffdhe4096>, B<NID_ffdhe6144>, B<NID_ffdhe8192>,
 B<NID_modp_1536>, B<NID_modp_2048>, B<NID_modp_3072>,
 B<NID_modp_4096>, B<NID_modp_6144> or B<NID_modp_8192>.
 
-
 DH_get_nid() determines if the parameters contained in B<dh> match
 any named set. It returns the NID corresponding to the matching parameters or
-B<NID_undef> if there is no match.
+B<NID_undef> if there is no match. This function is deprecated.
 
 =head1 RETURN VALUES
 
@@ -30,6 +34,10 @@ DH_new_by_nid() returns a set of DH parameters or B<NULL> if an error occurred.
 DH_get_nid() returns the NID of the matching set of parameters or
 B<NID_undef> if there is no match.
 
+=head1 HISTORY
+
+The DH_get_nid() function was deprecated in OpenSSL 3.0.
+
 =head1 COPYRIGHT
 
 Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.
diff --git a/doc/man3/DH_set_method.pod b/doc/man3/DH_set_method.pod
index 8c7713de68..ae3d8fa8cd 100644
--- a/doc/man3/DH_set_method.pod
+++ b/doc/man3/DH_set_method.pod
@@ -9,6 +9,10 @@ DH_set_method, DH_new_method, DH_OpenSSL - select DH method
 
  #include <openssl/dh.h>
 
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
  void DH_set_default_method(const DH_METHOD *meth);
 
  const DH_METHOD *DH_get_default_method(void);
@@ -21,6 +25,9 @@ DH_set_method, DH_new_method, DH_OpenSSL - select DH method
 
 =head1 DESCRIPTION
 
+All of the functions described on this page are deprecated.
+Applications should instead use the provider APIs.
+
 A B<DH_METHOD> specifies the functions that OpenSSL uses for Diffie-Hellman
 operations. By modifying the method, alternative implementations
 such as hardware accelerators may be used. IMPORTANT: See the NOTES section for
@@ -76,6 +83,10 @@ returns a pointer to the newly allocated structure.
 
 L<DH_new(3)>, L<DH_new(3)>, L<DH_meth_new(3)>
 
+=head1 HISTORY
+
+All of these functions were deprecated in OpenSSL 3.0.
+
 =head1 COPYRIGHT
 
 Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
diff --git a/doc/man3/DH_size.pod b/doc/man3/DH_size.pod
index 3161ef3ee3..8a206f0ac4 100644
--- a/doc/man3/DH_size.pod
+++ b/doc/man3/DH_size.pod
@@ -9,6 +9,10 @@ security bits
 
  #include <openssl/dh.h>
 
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
  int DH_size(const DH *dh);
 
  int DH_bits(const DH *dh);
@@ -17,6 +21,10 @@ security bits
 
 =head1 DESCRIPTION
 
+All of the functions described on this page are deprecated.
+Applications should instead use L<EVP_PKEY_bits(3)>,
+L<EVP_PKEY_security_bits(3)> and L<EVP_PKEY_size(3)>.
+
 DH_size() returns the Diffie-Hellman prime size in bytes. It can be used
 to determine how much memory must be allocated for the shared secret
 computed by L<DH_compute_key(3)>.
@@ -38,11 +46,14 @@ DH_security_bits() returns the number of security bits.
 
 =head1 SEE ALSO
 
+L<EVP_PKEY_bits(3)>,
 L<DH_new(3)>, L<DH_generate_key(3)>,
 L<BN_num_bits(3)>
 
 =head1 HISTORY
 
+All of these functions were deprecated in OpenSSL 3.0.
+
 The DH_bits() function was added in OpenSSL 1.1.0.
 
 =head1 COPYRIGHT
diff --git a/doc/man3/DSA_dup_DH.pod b/doc/man3/DSA_dup_DH.pod
index baaca6de2e..897d9a1e41 100644
--- a/doc/man3/DSA_dup_DH.pod
+++ b/doc/man3/DSA_dup_DH.pod
@@ -8,10 +8,18 @@ DSA_dup_DH - create a DH structure out of DSA structure
 
  #include <openssl/dsa.h>
 
+Deprecated since OpenSSL 3.0, can be hidden entirely by defining
+B<OPENSSL_API_COMPAT> with a suitable version value, see
+L<openssl_user_macros(7)>:
+
  DH *DSA_dup_DH(const DSA *r);
 
 =head1 DESCRIPTION
 
+The function described on this page is deprecated. There is no direct
+replacement, applications should use the EVP_PKEY APIs for Diffie-Hellman
+operations.
+
 DSA_dup_DH() duplicates DSA parameters/keys as DH parameters/keys. q
 is lost during that conversion, but the resulting DH parameters
 contain its length.
@@ -29,6 +37,10 @@ Be careful to avoid small subgroup attacks when using this.
 
 L<DH_new(3)>, L<DSA_new(3)>, L<ERR_get_error(3)>
 
+=head1 HISTORY
+
+This function was deprecated in OpenSSL 3.0.
+
 =head1 COPYRIGHT
 
 Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
diff --git a/fuzz/asn1.c b/fuzz/asn1.c
index 6ef6712e4d..0858bee91d 100644
--- a/fuzz/asn1.c
+++ b/fuzz/asn1.c
@@ -329,8 +329,8 @@ int FuzzerTestOneInput(const uint8_t *buf, size_t len)
     DO_TEST_NO_PRINT(ESS_CERT_ID_V2, d2i_ESS_CERT_ID_V2, i2d_ESS_CERT_ID_V2);
     DO_TEST_NO_PRINT(ESS_SIGNING_CERT_V2, d2i_ESS_SIGNING_CERT_V2, i2d_ESS_SIGNING_CERT_V2);
 #ifndef OPENSSL_NO_DH
-    DO_TEST(DH, d2i_DHparams, i2d_DHparams, DHparams_print);
-    DO_TEST(DH, d2i_DHxparams, i2d_DHxparams, DHparams_print);
+    DO_TEST_NO_PRINT(DH, d2i_DHparams, i2d_DHparams);
+    DO_TEST_NO_PRINT(DH, d2i_DHxparams, i2d_DHxparams);
 #endif
 #ifndef OPENSSL_NO_DSA
     DO_TEST_NO_PRINT(DSA_SIG, d2i_DSA_SIG, i2d_DSA_SIG);
diff --git a/include/openssl/dh.h b/include/openssl/dh.h
index 67783bae7b..b26e94e8e9 100644
--- a/include/openssl/dh.h
+++ b/include/openssl/dh.h
@@ -19,34 +19,35 @@
 # include <openssl/opensslconf.h>
 
 # ifndef OPENSSL_NO_DH
-# include <openssl/e_os2.h>
-# include <openssl/bio.h>
-# include <openssl/asn1.h>
-# include <openssl/types.h>
-# ifndef OPENSSL_NO_DEPRECATED_1_1_0
-#  include <openssl/bn.h>
-# endif
-# include <openssl/dherr.h>
+#  include <openssl/e_os2.h>
+#  include <openssl/bio.h>
+#  include <openssl/asn1.h>
+#  include <openssl/types.h>
+#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
+#   include <openssl/bn.h>
+#  endif
+#  include <openssl/dherr.h>
 
-# ifdef  __cplusplus
+#  ifdef  __cplusplus
 extern "C" {
-# endif
+#  endif
 
-# ifndef OPENSSL_DH_MAX_MODULUS_BITS
-#  define OPENSSL_DH_MAX_MODULUS_BITS    10000
-# endif
+#  ifndef OPENSSL_DH_MAX_MODULUS_BITS
+#   define OPENSSL_DH_MAX_MODULUS_BITS    10000
+#  endif
 
-# define OPENSSL_DH_FIPS_MIN_MODULUS_BITS 1024
+#  define OPENSSL_DH_FIPS_MIN_MODULUS_BITS 1024
 
-# define DH_FLAG_CACHE_MONT_P     0x01
+#  define DH_FLAG_CACHE_MONT_P     0x01
 
-# ifndef OPENSSL_NO_DEPRECATED_1_1_0
+#  ifndef OPENSSL_NO_DEPRECATED_1_1_0
 /*
  * Does nothing. Previously this switched off constant time behaviour.
  */
-#  define DH_FLAG_NO_EXP_CONSTTIME 0x00
-# endif
+#   define DH_FLAG_NO_EXP_CONSTTIME 0x00
+#  endif
 
+#  ifndef OPENSSL_NO_DEPRECATED_3_0
 /*
  * If this flag is set the DH method is FIPS compliant and can be used in
  * FIPS mode. This is set in the validated module method. If an application
@@ -54,7 +55,7 @@ extern "C" {
  * result is compliant.
  */
 
-# define DH_FLAG_FIPS_METHOD                     0x0400
+#   define DH_FLAG_FIPS_METHOD                     0x0400
 
 /*
  * If this flag is set the operations normally disabled in FIPS mode are
@@ -62,7 +63,8 @@ extern "C" {
  * usage is compliant.
  */
 
-# define DH_FLAG_NON_FIPS_ALLOW                  0x0400
+#   define DH_FLAG_NON_FIPS_ALLOW                  0x0400
+#  endif
 
 /* Already defined in ossl_typ.h */
 /* typedef struct dh_st DH; */
@@ -70,84 +72,90 @@ extern "C" {
 
 DECLARE_ASN1_ITEM(DHparams)
 
-# define DH_GENERATOR_2          2
-# define DH_GENERATOR_3          3
-# define DH_GENERATOR_5          5
+#  ifndef OPENSSL_NO_DEPRECATED_3_0
+#   define DH_GENERATOR_2          2
+#   define DH_GENERATOR_3          3
+#   define DH_GENERATOR_5          5
 
 /* DH_check error codes */
 /*
  * NB: These values must align with the equivalently named macros in
  * internal/ffc.h.
  */
-# define DH_CHECK_P_NOT_PRIME            0x01
-# define DH_CHECK_P_NOT_SAFE_PRIME       0x02
-# define DH_UNABLE_TO_CHECK_GENERATOR    0x04
-# define DH_NOT_SUITABLE_GENERATOR       0x08
-# define DH_CHECK_Q_NOT_PRIME            0x10
-# define DH_CHECK_INVALID_Q_VALUE        0x20
-# define DH_CHECK_INVALID_J_VALUE        0x40
-# define DH_MODULUS_TOO_SMALL            0x80
-# define DH_MODULUS_TOO_LARGE            0x100
+#   define DH_CHECK_P_NOT_PRIME            0x01
+#   define DH_CHECK_P_NOT_SAFE_PRIME       0x02
+#   define DH_UNABLE_TO_CHECK_GENERATOR    0x04
+#   define DH_NOT_SUITABLE_GENERATOR       0x08
+#   define DH_CHECK_Q_NOT_PRIME            0x10
+#   define DH_CHECK_INVALID_Q_VALUE        0x20
+#   define DH_CHECK_INVALID_J_VALUE        0x40
+#   define DH_MODULUS_TOO_SMALL            0x80
+#   define DH_MODULUS_TOO_LARGE            0x100
 
 /* DH_check_pub_key error codes */
-# define DH_CHECK_PUBKEY_TOO_SMALL       0x01
-# define DH_CHECK_PUBKEY_TOO_LARGE       0x02
-# define DH_CHECK_PUBKEY_INVALID         0x04
+#   define DH_CHECK_PUBKEY_TOO_SMALL       0x01
+#   define DH_CHECK_PUBKEY_TOO_LARGE       0x02
+#   define DH_CHECK_PUBKEY_INVALID         0x04
 
 /*
  * primes p where (p-1)/2 is prime too are called "safe"; we define this for
  * backward compatibility:
  */
-# define DH_CHECK_P_NOT_STRONG_PRIME     DH_CHECK_P_NOT_SAFE_PRIME
+#  define DH_CHECK_P_NOT_STRONG_PRIME     DH_CHECK_P_NOT_SAFE_PRIME
 
 /* DH parameter generation types used by EVP_PKEY_CTX_set_dh_paramgen_type() */
-# define DH_PARAMGEN_TYPE_GENERATOR    0   /* Use a generator g */
-# define DH_PARAMGEN_TYPE_FIPS_186_2   1   /* Use legacy FIPS186-2 standard */
-# define DH_PARAMGEN_TYPE_FIPS_186_4   2   /* Use FIPS186-4 standard */
-
-# define d2i_DHparams_fp(fp,x) \
-    (DH *)ASN1_d2i_fp((char *(*)())DH_new, \
-                      (char *(*)())d2i_DHparams, \
-                      (fp), \
-                      (unsigned char **)(x))
-# define i2d_DHparams_fp(fp,x) \
-    ASN1_i2d_fp(i2d_DHparams,(fp), (unsigned char *)(x))
-# define d2i_DHparams_bio(bp,x) \
-    ASN1_d2i_bio_of(DH, DH_new, d2i_DHparams, bp, x)
-# define i2d_DHparams_bio(bp,x) \
-    ASN1_i2d_bio_of(DH,i2d_DHparams,bp,x)
-
-# define d2i_DHxparams_fp(fp,x) \
-    (DH *)ASN1_d2i_fp((char *(*)())DH_new, \
-                      (char *(*)())d2i_DHxparams, \
-                      (fp), \
-                      (unsigned char **)(x))
-# define i2d_DHxparams_fp(fp,x) \
-    ASN1_i2d_fp(i2d_DHxparams,(fp), (unsigned char *)(x))
-# define d2i_DHxparams_bio(bp,x) \
-    ASN1_d2i_bio_of(DH, DH_new, d2i_DHxparams, bp, x)
-# define i2d_DHxparams_bio(bp,x) \
-    ASN1_i2d_bio_of(DH, i2d_DHxparams, bp, x)
+#   define DH_PARAMGEN_TYPE_GENERATOR    0   /* Use a generator g */
+#   define DH_PARAMGEN_TYPE_FIPS_186_2   1   /* Use legacy FIPS186-2 standard */
+#   define DH_PARAMGEN_TYPE_FIPS_186_4   2   /* Use FIPS186-4 standard */
+
+#   define DH_CHECK_P_NOT_STRONG_PRIME     DH_CHECK_P_NOT_SAFE_PRIME
+
+#   define d2i_DHparams_fp(fp, x) \
+        (DH *)ASN1_d2i_fp((char *(*)())DH_new, \
+                          (char *(*)())d2i_DHparams, \
+                          (fp), \
+                          (unsigned char **)(x))
+#   define i2d_DHparams_fp(fp, x) \
+        ASN1_i2d_fp(i2d_DHparams,(fp), (unsigned char *)(x))
+#   define d2i_DHparams_bio(bp, x) \
+        ASN1_d2i_bio_of(DH, DH_new, d2i_DHparams, bp, x)
+#   define i2d_DHparams_bio(bp, x) \
+        ASN1_i2d_bio_of(DH, i2d_DHparams, bp, x)
+
+#   define d2i_DHxparams_fp(fp,x) \
+        (DH *)ASN1_d2i_fp((char *(*)())DH_new, \
+                          (char *(*)())d2i_DHxparams, \
+                          (fp), \
+                          (unsigned char **)(x))
+#   define i2d_DHxparams_fp(fp, x) \
+        ASN1_i2d_fp(i2d_DHxparams,(fp), (unsigned char *)(x))
+#   define d2i_DHxparams_bio(bp, x) \
+        ASN1_d2i_bio_of(DH, DH_new, d2i_DHxparams, bp, x)
+#   define i2d_DHxparams_bio(bp, x) \
+        ASN1_i2d_bio_of(DH, i2d_DHxparams, bp, x)
+#  endif
 
 DECLARE_ASN1_DUP_FUNCTION_name(DH, DHparams)
 
-const DH_METHOD *DH_OpenSSL(void);
+DEPRECATEDIN_3_0(const DH_METHOD *DH_OpenSSL(void))
 
-void DH_set_default_method(const DH_METHOD *meth);
-const DH_METHOD *DH_get_default_method(void);
-int DH_set_method(DH *dh, const DH_METHOD *meth);
-DH *DH_new_method(ENGINE *engine);
+DEPRECATEDIN_3_0(void DH_set_default_method(const DH_METHOD *meth))
+DEPRECATEDIN_3_0(const DH_METHOD *DH_get_default_method(void))
+DEPRECATEDIN_3_0(int DH_set_method(DH *dh, const DH_METHOD *meth))
+DEPRECATEDIN_3_0(DH *DH_new_method(ENGINE *engine))
 
 DH *DH_new(void);
 void DH_free(DH *dh);
 int DH_up_ref(DH *dh);
-int DH_bits(const DH *dh);
-int DH_size(const DH *dh);
-int DH_security_bits(const DH *dh);
-#define DH_get_ex_new_index(l, p, newf, dupf, freef) \
-    CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DH, l, p, newf, dupf, freef)
-int DH_set_ex_data(DH *d, int idx, void *arg);
-void *DH_get_ex_data(DH *d, int idx);
+DEPRECATEDIN_3_0(int DH_bits(const DH *dh))
+DEPRECATEDIN_3_0(int DH_size(const DH *dh))
+DEPRECATEDIN_3_0(int DH_security_bits(const DH *dh))
+#  ifndef OPENSSL_NO_DEPRECATED_3_0
+#   define DH_get_ex_new_index(l, p, newf, dupf, freef) \
+        CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DH, l, p, newf, dupf, freef)
+#  endif
+DEPRECATEDIN_3_0(int DH_set_ex_data(DH *d, int idx, void *arg))
+DEPRECATEDIN_3_0(void *DH_get_ex_data(DH *d, int idx))
 
 /* Deprecated version */
 DEPRECATEDIN_0_9_8(DH *DH_generate_parameters(int prime_len, int generator,
@@ -156,24 +164,30 @@ DEPRECATEDIN_0_9_8(DH *DH_generate_parameters(int prime_len, int generator,
                                               void *cb_arg))
 
 /* New version */
-int DH_generate_parameters_ex(DH *dh, int prime_len, int generator,
-                              BN_GENCB *cb);
+DEPRECATEDIN_3_0(int DH_generate_parameters_ex(DH *dh, int prime_len,
+                                               int generator, BN_GENCB *cb))
 
-int DH_check_params_ex(const DH *dh);
-int DH_check_ex(const DH *dh);
-int DH_check_pub_key_ex(const DH *dh, const BIGNUM *pub_key);
+DEPRECATEDIN_3_0(int DH_check_params_ex(const DH *dh))
+DEPRECATEDIN_3_0(int DH_check_ex(const DH *dh))
+DEPRECATEDIN_3_0(int DH_check_pub_key_ex(const DH *dh, const BIGNUM *pub_key))
+/*
+ * TODO(3.0): deprecate DH_check_params once ssl/statem/statem_clnt.c is fixed.
+ */
 int DH_check_params(const DH *dh, int *ret);
-int DH_check(const DH *dh, int *codes);
-int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *codes);
-int DH_generate_key(DH *dh);
-int DH_compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh);
-int DH_compute_key_padded(unsigned char *key, const BIGNUM *pub_key, DH *dh);
+DEPRECATEDIN_3_0(int DH_check(const DH *dh, int *codes))
+DEPRECATEDIN_3_0(int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key,
+                                      int *codes))
+DEPRECATEDIN_3_0(int DH_generate_key(DH *dh))
+DEPRECATEDIN_3_0(int DH_compute_key(unsigned char *key, const BIGNUM *pub_key,
+                                    DH *dh))
+DEPRECATEDIN_3_0(int DH_compute_key_padded(unsigned char *key,
+                                           const BIGNUM *pub_key, DH *dh))
 DECLARE_ASN1_ENCODE_FUNCTIONS_only(DH, DHparams)
 DECLARE_ASN1_ENCODE_FUNCTIONS_only(DH, DHxparams)
-# ifndef OPENSSL_NO_STDIO
-int DHparams_print_fp(FILE *fp, const DH *x);
-# endif
-int DHparams_print(BIO *bp, const DH *x);
+#  ifndef OPENSSL_NO_STDIO
+DEPRECATEDIN_3_0(int DHparams_print_fp(FILE *fp, const DH *x))
+#  endif
+DEPRECATEDIN_3_0(int DHparams_print(BIO *bp, const DH *x))
 
 /* RFC 5114 parameters */
 DH *DH_get_1024_160(void);
@@ -181,16 +195,18 @@ DH *DH_get_2048_224(void);
 DH *DH_get_2048_256(void);
 
 /* Named parameters, currently RFC7919 and RFC3526 */
+/* TODO(3.0): deprecate DH_new_by_nid() after converting ssl/s3_lib.c */
 DH *DH_new_by_nid(int nid);
-int DH_get_nid(DH *dh);
+DEPRECATEDIN_3_0(int DH_get_nid(DH *dh))
 
-# ifndef OPENSSL_NO_CMS
+#  ifndef OPENSSL_NO_CMS
 /* RFC2631 KDF */
-int DH_KDF_X9_42(unsigned char *out, size_t outlen,
-                 const unsigned char *Z, size_t Zlen,
-                 ASN1_OBJECT *key_oid,
-                 const unsigned char *ukm, size_t ukmlen, const EVP_MD *md);
-# endif
+DEPRECATEDIN_3_0(int DH_KDF_X9_42(unsigned char *out, size_t outlen,
+                                  const unsigned char *Z, size_t Zlen,
+                                  ASN1_OBJECT *key_oid,
+                                  const unsigned char *ukm,
+                                  size_t ukmlen, const EVP_MD *md))
+#  endif
 
 void DH_get0_pqg(const DH *dh,
                  const BIGNUM **p, const BIGNUM **q, const BIGNUM **g);
@@ -206,145 +222,147 @@ const BIGNUM *DH_get0_pub_key(const DH *dh);
 void DH_clear_flags(DH *dh, int flags);
 int DH_test_flags(const DH *dh, int flags);
 void DH_set_flags(DH *dh, int flags);
-ENGINE *DH_get0_engine(DH *d);
-long DH_get_length(const DH *dh);
-int DH_set_length(DH *dh, long length);
-
-DH_METHOD *DH_meth_new(const char *name, int flags);
-void DH_meth_free(DH_METHOD *dhm);
-DH_METHOD *DH_meth_dup(const DH_METHOD *dhm);
-const char *DH_meth_get0_name(const DH_METHOD *dhm);
-int DH_meth_set1_name(DH_METHOD *dhm, const char *name);
-int DH_meth_get_flags(const DH_METHOD *dhm);
-int DH_meth_set_flags(DH_METHOD *dhm, int flags);
-void *DH_meth_get0_app_data(const DH_METHOD *dhm);
-int DH_meth_set0_app_data(DH_METHOD *dhm, void *app_data);
-int (*DH_meth_get_generate_key(const DH_METHOD *dhm)) (DH *);
-int DH_meth_set_generate_key(DH_METHOD *dhm, int (*generate_key) (DH *));
-int (*DH_meth_get_compute_key(const DH_METHOD *dhm))
-        (unsigned char *key, const BIGNUM *pub_key, DH *dh);
-int DH_meth_set_compute_key(DH_METHOD *dhm,
-        int (*compute_key) (unsigned char *key, const BIGNUM *pub_key, DH *dh));
-int (*DH_meth_get_bn_mod_exp(const DH_METHOD *dhm))
-    (const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
-     BN_CTX *, BN_MONT_CTX *);
-int DH_meth_set_bn_mod_exp(DH_METHOD *dhm,
-    int (*bn_mod_exp) (const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *,
-                       const BIGNUM *, BN_CTX *, BN_MONT_CTX *));
-int (*DH_meth_get_init(const DH_METHOD *dhm))(DH *);
-int DH_meth_set_init(DH_METHOD *dhm, int (*init)(DH *));
-int (*DH_meth_get_finish(const DH_METHOD *dhm)) (DH *);
-int DH_meth_set_finish(DH_METHOD *dhm, int (*finish) (DH *));
-int (*DH_meth_get_generate_params(const DH_METHOD *dhm))
-        (DH *, int, int, BN_GENCB *);
-int DH_meth_set_generate_params(DH_METHOD *dhm,
-        int (*generate_params) (DH *, int, int, BN_GENCB *));
-
-
-# define EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, len) \
+DEPRECATEDIN_3_0(ENGINE *DH_get0_engine(DH *d))
+DEPRECATEDIN_3_0(long DH_get_length(const DH *dh))
+DEPRECATEDIN_3_0(int DH_set_length(DH *dh, long length))
+
+DEPRECATEDIN_3_0(DH_METHOD *DH_meth_new(const char *name, int flags))
+DEPRECATEDIN_3_0(void DH_meth_free(DH_METHOD *dhm))
+DEPRECATEDIN_3_0(DH_METHOD *DH_meth_dup(const DH_METHOD *dhm))
+DEPRECATEDIN_3_0(const char *DH_meth_get0_name(const DH_METHOD *dhm))
+DEPRECATEDIN_3_0(int DH_meth_set1_name(DH_METHOD *dhm, const char *name))
+DEPRECATEDIN_3_0(int DH_meth_get_flags(const DH_METHOD *dhm))
+DEPRECATEDIN_3_0(int DH_meth_set_flags(DH_METHOD *dhm, int flags))
+DEPRECATEDIN_3_0(void *DH_meth_get0_app_data(const DH_METHOD *dhm))
+DEPRECATEDIN_3_0(int DH_meth_set0_app_data(DH_METHOD *dhm, void *app_data))
+DEPRECATEDIN_3_0(int (*DH_meth_get_generate_key(const DH_METHOD *dhm)) (DH *))
+DEPRECATEDIN_3_0(int DH_meth_set_generate_key(DH_METHOD *dhm,
+                                              int (*generate_key) (DH *)))
+DEPRECATEDIN_3_0(int (*DH_meth_get_compute_key(const DH_METHOD *dhm))
+                                               (unsigned char *key,
+                                               const BIGNUM *pub_key, DH *dh))
+DEPRECATEDIN_3_0(int DH_meth_set_compute_key(DH_METHOD *dhm,
+                                             int (*compute_key)
+                                                (unsigned char *key,
+                                                 const BIGNUM *pub_key,
+                                                 DH *dh)))
+DEPRECATEDIN_3_0(int (*DH_meth_get_bn_mod_exp(const DH_METHOD *dhm))
+                                                  (const DH *, BIGNUM *,
+                                                   const BIGNUM *,
+                                                   const BIGNUM *,
+                                                   const BIGNUM *, BN_CTX *,
+                                                   BN_MONT_CTX *))
+DEPRECATEDIN_3_0(int DH_meth_set_bn_mod_exp(DH_METHOD *dhm,
+                                            int (*bn_mod_exp)
+                                                (const DH *, BIGNUM *,
+                                                 const BIGNUM *, const BIGNUM *,
+                                                 const BIGNUM *, BN_CTX *,
+                                                 BN_MONT_CTX *)))
+DEPRECATEDIN_3_0(int (*DH_meth_get_init(const DH_METHOD *dhm))(DH *))
+DEPRECATEDIN_3_0(int DH_meth_set_init(DH_METHOD *dhm, int (*init)(DH *)))
+DEPRECATEDIN_3_0(int (*DH_meth_get_finish(const DH_METHOD *dhm)) (DH *))
+DEPRECATEDIN_3_0(int DH_meth_set_finish(DH_METHOD *dhm, int (*finish) (DH *)))
+DEPRECATEDIN_3_0(int (*DH_meth_get_generate_params(const DH_METHOD *dhm))
+                                                       (DH *, int, int,
+                                                        BN_GENCB *))
+DEPRECATEDIN_3_0(int DH_meth_set_generate_params(DH_METHOD *dhm,
+                                                 int (*generate_params)
+                                                     (DH *, int, int,
+                                                      BN_GENCB *)))
+
+#  define EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, len) \
         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \
-                        EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN, len, NULL)
+                          EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN, len, NULL)
 
-# define EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, len) \
+#  define EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, len) \
         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \
-                        EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN, len, NULL)
+                          EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN, len, NULL)
 
-# define EVP_PKEY_CTX_set_dh_paramgen_type(ctx, typ) \
+#  define EVP_PKEY_CTX_set_dh_paramgen_type(ctx, typ) \
         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \
-                        EVP_PKEY_CTRL_DH_PARAMGEN_TYPE, typ, NULL)
+                          EVP_PKEY_CTRL_DH_PARAMGEN_TYPE, typ, NULL)
 
-# define EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, gen) \
+#  define EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, gen) \
         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \
-                        EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR, gen, NULL)
+                          EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR, gen, NULL)
 
-# define EVP_PKEY_CTX_set_dh_rfc5114(ctx, gen) \
+#  define EVP_PKEY_CTX_set_dh_rfc5114(ctx, gen) \
         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_PARAMGEN, \
-                        EVP_PKEY_CTRL_DH_RFC5114, gen, NULL)
+                          EVP_PKEY_CTRL_DH_RFC5114, gen, NULL)
 
-# define EVP_PKEY_CTX_set_dhx_rfc5114(ctx, gen) \
+#  define EVP_PKEY_CTX_set_dhx_rfc5114(ctx, gen) \
         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_PARAMGEN, \
-                        EVP_PKEY_CTRL_DH_RFC5114, gen, NULL)
+                          EVP_PKEY_CTRL_DH_RFC5114, gen, NULL)
 
-# define EVP_PKEY_CTX_set_dh_nid(ctx, nid) \
+#  define EVP_PKEY_CTX_set_dh_nid(ctx, nid) \
         EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, \
                         EVP_PKEY_OP_PARAMGEN | EVP_PKEY_OP_KEYGEN, \
                         EVP_PKEY_CTRL_DH_NID, nid, NULL)
 
 int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad);
 
-# define EVP_PKEY_CTX_set_dh_kdf_type(ctx, kdf) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_DH_KDF_TYPE, kdf, NULL)
-
-# define EVP_PKEY_CTX_get_dh_kdf_type(ctx) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_DH_KDF_TYPE, -2, NULL)
-
-# define EVP_PKEY_CTX_set0_dh_kdf_oid(ctx, oid) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_DH_KDF_OID, 0, (void *)(oid))
-
-# define EVP_PKEY_CTX_get0_dh_kdf_oid(ctx, poid) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_GET_DH_KDF_OID, 0, (void *)(poid))
-
-# define EVP_PKEY_CTX_set_dh_kdf_md(ctx, md) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_DH_KDF_MD, 0, (void *)(md))
-
-# define EVP_PKEY_CTX_get_dh_kdf_md(ctx, pmd) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_GET_DH_KDF_MD, 0, (void *)(pmd))
-
-# define EVP_PKEY_CTX_set_dh_kdf_outlen(ctx, len) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_DH_KDF_OUTLEN, len, NULL)
-
-# define EVP_PKEY_CTX_get_dh_kdf_outlen(ctx, plen) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                        EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN, 0, (void *)(plen))
-
-# define EVP_PKEY_CTX_set0_dh_kdf_ukm(ctx, p, plen) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_DH_KDF_UKM, plen, (void *)(p))
-
-# define EVP_PKEY_CTX_get0_dh_kdf_ukm(ctx, p) \
-        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \
-                                EVP_PKEY_OP_DERIVE, \
-                                EVP_PKEY_CTRL_GET_DH_KDF_UKM, 0, (void *)(p))
-
-# define EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN     (EVP_PKEY_ALG_CTRL + 1)
-# define EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR     (EVP_PKEY_ALG_CTRL + 2)
-# define EVP_PKEY_CTRL_DH_RFC5114                (EVP_PKEY_ALG_CTRL + 3)
-# define EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN  (EVP_PKEY_ALG_CTRL + 4)
-# define EVP_PKEY_CTRL_DH_PARAMGEN_TYPE          (EVP_PKEY_ALG_CTRL + 5)
-# define EVP_PKEY_CTRL_DH_KDF_TYPE               (EVP_PKEY_ALG_CTRL + 6)
-# define EVP_PKEY_CTRL_DH_KDF_MD                 (EVP_PKEY_ALG_CTRL + 7)
-# define EVP_PKEY_CTRL_GET_DH_KDF_MD             (EVP_PKEY_ALG_CTRL + 8)
-# define EVP_PKEY_CTRL_DH_KDF_OUTLEN             (EVP_PKEY_ALG_CTRL + 9)
-# define EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN         (EVP_PKEY_ALG_CTRL + 10)
-# define EVP_PKEY_CTRL_DH_KDF_UKM                (EVP_PKEY_ALG_CTRL + 11)
-# define EVP_PKEY_CTRL_GET_DH_KDF_UKM            (EVP_PKEY_ALG_CTRL + 12)
-# define EVP_PKEY_CTRL_DH_KDF_OID                (EVP_PKEY_ALG_CTRL + 13)
-# define EVP_PKEY_CTRL_GET_DH_KDF_OID            (EVP_PKEY_ALG_CTRL + 14)
-# define EVP_PKEY_CTRL_DH_NID                    (EVP_PKEY_ALG_CTRL + 15)
-# define EVP_PKEY_CTRL_DH_PAD                    (EVP_PKEY_ALG_CTRL + 16)
+#  define EVP_PKEY_CTX_set_dh_kdf_type(ctx, kdf) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_DH_KDF_TYPE, kdf, NULL)
+
+#  define EVP_PKEY_CTX_get_dh_kdf_type(ctx) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_DH_KDF_TYPE, -2, NULL)
+
+#  define EVP_PKEY_CTX_set0_dh_kdf_oid(ctx, oid) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_DH_KDF_OID, 0, (void *)(oid))
+
+#  define EVP_PKEY_CTX_get0_dh_kdf_oid(ctx, poid) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX,  EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_GET_DH_KDF_OID, 0, (void *)(poid))
+
+#  define EVP_PKEY_CTX_set_dh_kdf_md(ctx, md) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_DH_KDF_MD, 0, (void *)(md))
+
+#  define EVP_PKEY_CTX_get_dh_kdf_md(ctx, pmd) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_GET_DH_KDF_MD, 0, (void *)(pmd))
+
+#  define EVP_PKEY_CTX_set_dh_kdf_outlen(ctx, len) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_DH_KDF_OUTLEN, len, NULL)
+
+#  define EVP_PKEY_CTX_get_dh_kdf_outlen(ctx, plen) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN, 0, (void *)(plen))
+
+#  define EVP_PKEY_CTX_set0_dh_kdf_ukm(ctx, p, plen) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX,  EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_DH_KDF_UKM, plen, (void *)(p))
+
+#  define EVP_PKEY_CTX_get0_dh_kdf_ukm(ctx, p) \
+        EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX,  EVP_PKEY_OP_DERIVE, \
+                          EVP_PKEY_CTRL_GET_DH_KDF_UKM, 0, (void *)(p))
+
+#  define EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN     (EVP_PKEY_ALG_CTRL + 1)
+#  define EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR     (EVP_PKEY_ALG_CTRL + 2)
+#  define EVP_PKEY_CTRL_DH_RFC5114                (EVP_PKEY_ALG_CTRL + 3)
+#  define EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN  (EVP_PKEY_ALG_CTRL + 4)
+#  define EVP_PKEY_CTRL_DH_PARAMGEN_TYPE          (EVP_PKEY_ALG_CTRL + 5)
+#  define EVP_PKEY_CTRL_DH_KDF_TYPE               (EVP_PKEY_ALG_CTRL + 6)
+#  define EVP_PKEY_CTRL_DH_KDF_MD                 (EVP_PKEY_ALG_CTRL + 7)
+#  define EVP_PKEY_CTRL_GET_DH_KDF_MD             (EVP_PKEY_ALG_CTRL + 8)
+#  define EVP_PKEY_CTRL_DH_KDF_OUTLEN             (EVP_PKEY_ALG_CTRL + 9)
+#  define EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN         (EVP_PKEY_ALG_CTRL + 10)
+#  define EVP_PKEY_CTRL_DH_KDF_UKM                (EVP_PKEY_ALG_CTRL + 11)
+#  define EVP_PKEY_CTRL_GET_DH_KDF_UKM            (EVP_PKEY_ALG_CTRL + 12)
+#  define EVP_PKEY_CTRL_DH_KDF_OID                (EVP_PKEY_ALG_CTRL + 13)
+#  define EVP_PKEY_CTRL_GET_DH_KDF_OID            (EVP_PKEY_ALG_CTRL + 14)
+#  define EVP_PKEY_CTRL_DH_NID                    (EVP_PKEY_ALG_CTRL + 15)
+#  define EVP_PKEY_CTRL_DH_PAD                    (EVP_PKEY_ALG_CTRL + 16)
 
 /* KDF types */
-# define EVP_PKEY_DH_KDF_NONE                            1
-# ifndef OPENSSL_NO_CMS
-# define EVP_PKEY_DH_KDF_X9_42                           2
-# endif
-
+#  define EVP_PKEY_DH_KDF_NONE                            1
+#  ifndef OPENSSL_NO_CMS
+#   define EVP_PKEY_DH_KDF_X9_42                          2
+#  endif
 
 #  ifdef  __cplusplus
 }
diff --git a/include/openssl/dsa.h b/include/openssl/dsa.h
index 5fe87bee1a..ac4d221b2d 100644
--- a/include/openssl/dsa.h
+++ b/include/openssl/dsa.h
@@ -178,10 +178,8 @@ DEPRECATEDIN_3_0(int DSA_print_fp(FILE *bp, const DSA *x, int off))
 /*
  * Convert DSA structure (key or just parameters) into DH structure (be
  * careful to avoid small subgroup attacks when using this!)
- *
- * TODO(3.0): figure out how to remove this monstrosity
  */
-DH *DSA_dup_DH(const DSA *r);
+DEPRECATEDIN_3_0(DH *DSA_dup_DH(const DSA *r))
 #  endif
 
 #  define EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits) \
diff --git a/providers/implementations/exchange/dh_exch.c b/providers/implementations/exchange/dh_exch.c
index 418896e46d..5e71ef4ff0 100644
--- a/providers/implementations/exchange/dh_exch.c
+++ b/providers/implementations/exchange/dh_exch.c
@@ -7,6 +7,12 @@
  * 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 <openssl/crypto.h>
 #include <openssl/core_numbers.h>
 #include <openssl/core_names.h>
diff --git a/providers/implementations/keymgmt/dh_kmgmt.c b/providers/implementations/keymgmt/dh_kmgmt.c
index 0063324f48..f4f04eeab8 100644
--- a/providers/implementations/keymgmt/dh_kmgmt.c
+++ b/providers/implementations/keymgmt/dh_kmgmt.c
@@ -7,6 +7,12 @@
  * 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 <openssl/core_numbers.h>
 #include <openssl/core_names.h>
 #include <openssl/bn.h>
diff --git a/providers/implementations/serializers/serializer_dh.c b/providers/implementations/serializers/serializer_dh.c
index da74e221ef..31ba175dd7 100644
--- a/providers/implementations/serializers/serializer_dh.c
+++ b/providers/implementations/serializers/serializer_dh.c
@@ -7,6 +7,12 @@
  * 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 <openssl/dh.h>
 #include <openssl/err.h>
 #include "prov/bio.h"             /* ossl_prov_bio_printf() */
diff --git a/providers/implementations/serializers/serializer_dh_param.c b/providers/implementations/serializers/serializer_dh_param.c
index b445a25220..5eb8ffa16c 100644
--- a/providers/implementations/serializers/serializer_dh_param.c
+++ b/providers/implementations/serializers/serializer_dh_param.c
@@ -7,6 +7,12 @@
  * 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 <openssl/core_numbers.h>
 #include <openssl/pem.h>
 #include <openssl/dh.h>
diff --git a/providers/implementations/serializers/serializer_dh_priv.c b/providers/implementations/serializers/serializer_dh_priv.c
index c22f5341b7..6facbeefa7 100644
--- a/providers/implementations/serializers/serializer_dh_priv.c
+++ b/providers/implementations/serializers/serializer_dh_priv.c
@@ -7,6 +7,12 @@
  * 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 <openssl/core_numbers.h>
 #include <openssl/core_names.h>
 #include <openssl/err.h>
diff --git a/providers/implementations/serializers/serializer_dh_pub.c b/providers/implementations/serializers/serializer_dh_pub.c
index 9e8d46f252..57da48c705 100644
--- a/providers/implementations/serializers/serializer_dh_pub.c
+++ b/providers/implementations/serializers/serializer_dh_pub.c
@@ -7,6 +7,12 @@
  * 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 <openssl/core_numbers.h>
 #include <openssl/err.h>
 #include <openssl/pem.h>
diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c
index 706290be9b..51f8a0f63d 100644
--- a/ssl/s3_lib.c
+++ b/ssl/s3_lib.c
@@ -4752,7 +4752,7 @@ EVP_PKEY *ssl_generate_pkey_group(SSL *s, uint16_t id)
                 || (dh = DH_new_by_nid(ginf->nid)) == NULL
                 || !EVP_PKEY_assign(pkey, EVP_PKEY_DH, dh)) {
             SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GENERATE_PKEY_GROUP,
-                    ERR_R_EVP_LIB);
+                     ERR_R_EVP_LIB);
             DH_free(dh);
             EVP_PKEY_free(pkey);
             pkey = NULL;
@@ -4760,7 +4760,7 @@ EVP_PKEY *ssl_generate_pkey_group(SSL *s, uint16_t id)
         }
         if (EVP_PKEY_CTX_set_dh_nid(pctx, ginf->nid) <= 0) {
             SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GENERATE_PKEY_GROUP,
-                    ERR_R_EVP_LIB);
+                     ERR_R_EVP_LIB);
             EVP_PKEY_free(pkey);
             pkey = NULL;
             goto err;
@@ -4796,7 +4796,7 @@ EVP_PKEY *ssl_generate_pkey_group(SSL *s, uint16_t id)
 /*
  * Generate parameters from a group ID
  */
-EVP_PKEY *ssl_generate_param_group(uint16_t id)
+EVP_PKEY *ssl_generate_param_group(SSL *s, uint16_t id)
 {
     EVP_PKEY_CTX *pctx = NULL;
     EVP_PKEY *pkey = NULL;
diff --git a/ssl/ssl_local.h b/ssl/ssl_local.h
index 31c01328ce..d9092161ff 100644
--- a/ssl/ssl_local.h
+++ b/ssl/ssl_local.h
@@ -2605,7 +2605,7 @@ __owur int tls1_set_groups_list(uint16_t **pext, size_t *pextlen,
                                 const char *str);
 __owur EVP_PKEY *ssl_generate_pkey_group(SSL *s, uint16_t id);
 __owur int tls_valid_group(SSL *s, uint16_t group_id, int version);
-__owur EVP_PKEY *ssl_generate_param_group(uint16_t id);
+__owur EVP_PKEY *ssl_generate_param_group(SSL *s, uint16_t id);
 #  ifndef OPENSSL_NO_EC
 void tls1_get_formatlist(SSL *s, const unsigned char **pformats,
                          size_t *num_formats);
diff --git a/ssl/statem/extensions_srvr.c b/ssl/statem/extensions_srvr.c
index 36201c68e4..9649420012 100644
--- a/ssl/statem/extensions_srvr.c
+++ b/ssl/statem/extensions_srvr.c
@@ -705,7 +705,7 @@ int tls_parse_ctos_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
             continue;
         }
 
-        if ((s->s3.peer_tmp = ssl_generate_param_group(group_id)) == NULL) {
+        if ((s->s3.peer_tmp = ssl_generate_param_group(s, group_id)) == NULL) {
             SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PARSE_CTOS_KEY_SHARE,
                    SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
             return 0;
diff --git a/ssl/statem/statem_clnt.c b/ssl/statem/statem_clnt.c
index ba2fe0802d..99459a8c6a 100644
--- a/ssl/statem/statem_clnt.c
+++ b/ssl/statem/statem_clnt.c
@@ -2147,18 +2147,19 @@ static int tls_process_ske_dhe(SSL *s, PACKET *pkt, EVP_PKEY **pkey)
     }
     bnpub_key = NULL;
 
-    if (!ssl_security(s, SSL_SECOP_TMP_DH, DH_security_bits(dh), 0, dh)) {
-        SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_TLS_PROCESS_SKE_DHE,
-                 SSL_R_DH_KEY_TOO_SMALL);
-        goto err;
-    }
-
     if (EVP_PKEY_assign_DH(peer_tmp, dh) == 0) {
         SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_DHE,
                  ERR_R_EVP_LIB);
         goto err;
     }
 
+    if (!ssl_security(s, SSL_SECOP_TMP_DH, EVP_PKEY_security_bits(peer_tmp),
+                      0, dh)) {
+        SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_TLS_PROCESS_SKE_DHE,
+                 SSL_R_DH_KEY_TOO_SMALL);
+        goto err;
+    }
+
     s->s3.peer_tmp = peer_tmp;
 
     /*
@@ -2213,7 +2214,7 @@ static int tls_process_ske_ecdhe(SSL *s, PACKET *pkt, EVP_PKEY **pkey)
         return 0;
     }
 
-    if ((s->s3.peer_tmp = ssl_generate_param_group(curve_id)) == NULL) {
+    if ((s->s3.peer_tmp = ssl_generate_param_group(s, curve_id)) == NULL) {
         SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_ECDHE,
                  SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
         return 0;
diff --git a/test/build.info b/test/build.info
index 84229bdd2d..5965616d80 100644
--- a/test/build.info
+++ b/test/build.info
@@ -34,8 +34,7 @@ IF[{- !$disabled{tests} -}]
           sanitytest rsa_complex exdatatest bntest \
           ectest ecstresstest gmdifftest pbelutest \
           destest mdc2test \
-          dhtest enginetest \
-          ssltest_old exptest \
+          enginetest exptest \
           evp_pkey_provided_test evp_test evp_extra_test evp_fetch_prov_test \
           v3nametest v3ext \
           crltest danetest bad_dtls_test lhash_test sparse_array_test \
@@ -109,18 +108,10 @@ IF[{- !$disabled{tests} -}]
   INCLUDE[mdc2test]=../include ../apps/include
   DEPEND[mdc2test]=../libcrypto libtestutil.a
 
-  SOURCE[dhtest]=dhtest.c
-  INCLUDE[dhtest]=../include ../apps/include
-  DEPEND[dhtest]=../libcrypto libtestutil.a
-
   SOURCE[enginetest]=enginetest.c
   INCLUDE[enginetest]=../include ../apps/include
   DEPEND[enginetest]=../libcrypto libtestutil.a
 
-  SOURCE[ssltest_old]=ssltest_old.c
-  INCLUDE[ssltest_old]=.. ../include ../apps/include
-  DEPEND[ssltest_old]=../libcrypto ../libssl
-
   SOURCE[exptest]=exptest.c
   INCLUDE[exptest]=../include ../apps/include
   DEPEND[exptest]=../libcrypto libtestutil.a
@@ -490,7 +481,8 @@ IF[{- !$disabled{tests} -}]
                      rdrand_sanitytest property_test ideatest rsa_mp_test \
                      rsa_sp800_56b_test bn_internal_test ecdsatest rsa_test \
                      rc2test rc4test rc5test hmactest ffc_internal_test \
-                     asn1_dsa_internal_test dsatest dsa_no_digest_size_test
+                     asn1_dsa_internal_test dsatest dsa_no_digest_size_test \
+                     dhtest ssltest_old
 
     IF[{- !$disabled{poly1305} -}]
       PROGRAMS{noinst}=poly1305_internal_test
@@ -575,6 +567,10 @@ IF[{- !$disabled{tests} -}]
     INCLUDE[sparse_array_test]=../crypto/include ../include ../apps/include
     DEPEND[sparse_array_test]=../libcrypto.a libtestutil.a
 
+    SOURCE[dhtest]=dhtest.c
+    INCLUDE[dhtest]=../include ../apps/include
+    DEPEND[dhtest]=../libcrypto.a libtestutil.a
+
     SOURCE[hmactest]=hmactest.c
     INCLUDE[hmactest]=../include ../apps/include
     DEPEND[hmactest]=../libcrypto.a libtestutil.a
@@ -650,6 +646,10 @@ IF[{- !$disabled{tests} -}]
     SOURCE[mdc2_internal_test]=mdc2_internal_test.c
     INCLUDE[mdc2_internal_test]=.. ../include ../apps/include
     DEPEND[mdc2_internal_test]=../libcrypto.a libtestutil.a
+
+    SOURCE[ssltest_old]=ssltest_old.c
+    INCLUDE[ssltest_old]=.. ../include ../apps/include
+    DEPEND[ssltest_old]=../libcrypto.a ../libssl.a
   ENDIF
 
   PROGRAMS{noinst}=asn1_time_test
diff --git a/test/dhtest.c b/test/dhtest.c
index a357d0262f..b3e2e2fdcb 100644
--- a/test/dhtest.c
+++ b/test/dhtest.c
@@ -7,6 +7,12 @@
  * 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 <stdlib.h>
 #include <string.h>
diff --git a/test/ssltest_old.c b/test/ssltest_old.c
index 0c0aa6046a..d2c764c1ae 100644
--- a/test/ssltest_old.c
+++ b/test/ssltest_old.c
@@ -9,6 +9,12 @@
  * 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 "e_os.h"
 
 /* Or gethostname won't be declared properly on Linux and GNU platforms. */
diff --git a/util/libcrypto.num b/util/libcrypto.num
index cf98794b5a..48a356dfaf 100644
--- a/util/libcrypto.num
+++ b/util/libcrypto.num
@@ -100,7 +100,7 @@ DSAparams_print                         101	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3
 BF_set_key                              102	3_0_0	EXIST::FUNCTION:BF,DEPRECATEDIN_3_0
 d2i_DHparams                            103	3_0_0	EXIST::FUNCTION:DH
 i2d_PKCS7_ENC_CONTENT                   104	3_0_0	EXIST::FUNCTION:
-DH_generate_key                         105	3_0_0	EXIST::FUNCTION:DH
+DH_generate_key                         105	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 ENGINE_add_conf_module                  106	3_0_0	EXIST::FUNCTION:ENGINE
 BIO_new_socket                          107	3_0_0	EXIST::FUNCTION:SOCK
 ASN1_OBJECT_free                        108	3_0_0	EXIST::FUNCTION:
@@ -445,7 +445,7 @@ X509_get_serialNumber                   453	3_0_0	EXIST::FUNCTION:
 BIO_sock_should_retry                   454	3_0_0	EXIST::FUNCTION:SOCK
 ENGINE_get_digests                      455	3_0_0	EXIST::FUNCTION:ENGINE
 TS_MSG_IMPRINT_get_algo                 456	3_0_0	EXIST::FUNCTION:TS
-DH_new_method                           457	3_0_0	EXIST::FUNCTION:DH
+DH_new_method                           457	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 BF_ecb_encrypt                          458	3_0_0	EXIST::FUNCTION:BF,DEPRECATEDIN_3_0
 PEM_write_bio_DHparams                  459	3_0_0	EXIST::FUNCTION:DH
 EVP_DigestFinal                         460	3_0_0	EXIST::FUNCTION:
@@ -563,7 +563,7 @@ a2i_ASN1_STRING                         575	3_0_0	EXIST::FUNCTION:
 EC_GROUP_get_mont_data                  576	3_0_0	EXIST::FUNCTION:EC
 CMAC_CTX_copy                           577	3_0_0	EXIST::FUNCTION:CMAC,DEPRECATEDIN_3_0
 EVP_camellia_128_cfb128                 579	3_0_0	EXIST::FUNCTION:CAMELLIA
-DH_compute_key_padded                   580	3_0_0	EXIST::FUNCTION:DH
+DH_compute_key_padded                   580	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 ERR_load_CONF_strings                   581	3_0_0	EXIST::FUNCTION:
 ESS_ISSUER_SERIAL_dup                   582	3_0_0	EXIST::FUNCTION:
 BN_GF2m_mod_exp_arr                     583	3_0_0	EXIST::FUNCTION:EC2M
@@ -617,7 +617,7 @@ X509_REQ_dup                            631	3_0_0	EXIST::FUNCTION:
 d2i_DSA_PUBKEY_fp                       633	3_0_0	EXIST::FUNCTION:DSA,STDIO
 OCSP_REQ_CTX_nbio_d2i                   634	3_0_0	EXIST::FUNCTION:SOCK
 d2i_X509_REQ_fp                         635	3_0_0	EXIST::FUNCTION:STDIO
-DH_OpenSSL                              636	3_0_0	EXIST::FUNCTION:DH
+DH_OpenSSL                              636	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 BN_get_rfc3526_prime_8192               637	3_0_0	EXIST::FUNCTION:DH
 X509_REVOKED_it                         638	3_0_0	EXIST::FUNCTION:
 CRYPTO_THREAD_write_lock                639	3_0_0	EXIST::FUNCTION:
@@ -672,13 +672,13 @@ CTLOG_get0_log_id                       688	3_0_0	EXIST::FUNCTION:CT
 CMS_RecipientInfo_ktri_get0_signer_id   689	3_0_0	EXIST::FUNCTION:CMS
 OCSP_REQUEST_add1_ext_i2d               690	3_0_0	EXIST::FUNCTION:OCSP
 EVP_PBE_CipherInit                      691	3_0_0	EXIST::FUNCTION:
-DSA_dup_DH                              692	3_0_0	EXIST::FUNCTION:DH,DSA
+DSA_dup_DH                              692	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH,DSA
 CONF_imodule_get_value                  693	3_0_0	EXIST::FUNCTION:
 OCSP_id_issuer_cmp                      694	3_0_0	EXIST::FUNCTION:OCSP
 ASN1_INTEGER_free                       695	3_0_0	EXIST::FUNCTION:
 BN_get0_nist_prime_224                  696	3_0_0	EXIST::FUNCTION:
 OPENSSL_isservice                       697	3_0_0	EXIST::FUNCTION:
-DH_compute_key                          698	3_0_0	EXIST::FUNCTION:DH
+DH_compute_key                          698	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 TS_RESP_CTX_set_signer_key              699	3_0_0	EXIST::FUNCTION:TS
 i2d_DSAPrivateKey_bio                   700	3_0_0	EXIST::FUNCTION:DSA
 ASN1_item_d2i                           702	3_0_0	EXIST::FUNCTION:
@@ -718,7 +718,7 @@ OCSP_REQUEST_get1_ext_d2i               736	3_0_0	EXIST::FUNCTION:OCSP
 CMS_unsigned_add1_attr_by_NID           737	3_0_0	EXIST::FUNCTION:CMS
 BN_mod_exp_mont                         738	3_0_0	EXIST::FUNCTION:
 d2i_DHxparams                           739	3_0_0	EXIST::FUNCTION:DH
-DH_size                                 740	3_0_0	EXIST::FUNCTION:DH
+DH_size                                 740	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 CONF_imodule_get_name                   741	3_0_0	EXIST::FUNCTION:
 ENGINE_get_pkey_meth_engine             742	3_0_0	EXIST::FUNCTION:ENGINE
 OCSP_BASICRESP_free                     743	3_0_0	EXIST::FUNCTION:OCSP
@@ -965,7 +965,7 @@ ERR_load_TS_strings                     989	3_0_0	EXIST::FUNCTION:TS
 BN_nist_mod_func                        990	3_0_0	EXIST::FUNCTION:
 OCSP_ONEREQ_new                         991	3_0_0	EXIST::FUNCTION:OCSP
 DSA_SIG_new                             992	3_0_0	EXIST::FUNCTION:DSA
-DH_get_default_method                   993	3_0_0	EXIST::FUNCTION:DH
+DH_get_default_method                   993	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 PEM_proc_type                           994	3_0_0	EXIST::FUNCTION:
 BIO_printf                              995	3_0_0	EXIST::FUNCTION:
 a2i_IPADDRESS                           996	3_0_0	EXIST::FUNCTION:
@@ -1337,7 +1337,7 @@ X509_get_default_cert_file_env          1366	3_0_0	EXIST::FUNCTION:
 X509v3_addr_validate_resource_set       1367	3_0_0	EXIST::FUNCTION:RFC3779
 d2i_X509_VAL                            1368	3_0_0	EXIST::FUNCTION:
 CRYPTO_gcm128_decrypt_ctr32             1370	3_0_0	EXIST::FUNCTION:
-DHparams_print                          1371	3_0_0	EXIST::FUNCTION:DH
+DHparams_print                          1371	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 OPENSSL_sk_unshift                      1372	3_0_0	EXIST::FUNCTION:
 BN_GENCB_set_old                        1373	3_0_0	EXIST::FUNCTION:
 PEM_write_bio_X509                      1374	3_0_0	EXIST::FUNCTION:
@@ -1716,7 +1716,7 @@ i2d_NETSCAPE_SPKI                       1754	3_0_0	EXIST::FUNCTION:
 ASYNC_init_thread                       1755	3_0_0	EXIST::FUNCTION:
 OCSP_BASICRESP_get_ext_by_OBJ           1756	3_0_0	EXIST::FUNCTION:OCSP
 X509_reject_clear                       1757	3_0_0	EXIST::FUNCTION:
-DH_security_bits                        1758	3_0_0	EXIST::FUNCTION:DH
+DH_security_bits                        1758	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 LONG_it                                 1759	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0
 ASN1_dup                                1760	3_0_0	EXIST::FUNCTION:
 TS_RESP_new                             1761	3_0_0	EXIST::FUNCTION:TS
@@ -2018,7 +2018,7 @@ EVP_MD_CTX_clear_flags                  2064	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_meth_get_verifyctx             2065	3_0_0	EXIST::FUNCTION:
 CT_POLICY_EVAL_CTX_get0_cert            2066	3_0_0	EXIST::FUNCTION:CT
 PEM_write_DHparams                      2067	3_0_0	EXIST::FUNCTION:DH,STDIO
-DH_set_ex_data                          2068	3_0_0	EXIST::FUNCTION:DH
+DH_set_ex_data                          2068	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 OCSP_SIGNATURE_free                     2069	3_0_0	EXIST::FUNCTION:OCSP
 CRYPTO_128_unwrap_pad                   2070	3_0_0	EXIST::FUNCTION:
 BIO_new_CMS                             2071	3_0_0	EXIST::FUNCTION:CMS
@@ -2061,7 +2061,7 @@ OCSP_ONEREQ_add1_ext_i2d                2107	3_0_0	EXIST::FUNCTION:OCSP
 ENGINE_register_pkey_meths              2108	3_0_0	EXIST::FUNCTION:ENGINE
 ENGINE_load_public_key                  2109	3_0_0	EXIST::FUNCTION:ENGINE
 ASIdOrRange_it                          2110	3_0_0	EXIST::FUNCTION:RFC3779
-DHparams_print_fp                       2111	3_0_0	EXIST::FUNCTION:DH,STDIO
+DHparams_print_fp                       2111	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH,STDIO
 ERR_load_CRYPTO_strings                 2112	3_0_0	EXIST:!VMS:FUNCTION:
 ERR_load_CRYPTOlib_strings              2112	3_0_0	EXIST:VMS:FUNCTION:
 X509_REQ_set_version                    2113	3_0_0	EXIST::FUNCTION:
@@ -2289,7 +2289,7 @@ OPENSSL_sk_zero                         2337	3_0_0	EXIST::FUNCTION:
 ASN1_PRINTABLE_type                     2338	3_0_0	EXIST::FUNCTION:
 TS_CONF_set_ess_cert_id_chain           2339	3_0_0	EXIST::FUNCTION:TS
 PEM_read_DSAPrivateKey                  2340	3_0_0	EXIST::FUNCTION:DSA,STDIO
-DH_generate_parameters_ex               2341	3_0_0	EXIST::FUNCTION:DH
+DH_generate_parameters_ex               2341	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 UI_dup_input_string                     2342	3_0_0	EXIST::FUNCTION:
 X509_keyid_set1                         2343	3_0_0	EXIST::FUNCTION:
 X509_VERIFY_PARAM_set1                  2344	3_0_0	EXIST::FUNCTION:
@@ -2315,7 +2315,7 @@ OTHERNAME_it                            2363	3_0_0	EXIST::FUNCTION:
 X509at_add1_attr_by_txt                 2364	3_0_0	EXIST::FUNCTION:
 PKCS7_SIGN_ENVELOPE_free                2365	3_0_0	EXIST::FUNCTION:
 BIO_dgram_is_sctp                       2366	3_0_0	EXIST::FUNCTION:DGRAM,SCTP
-DH_check                                2367	3_0_0	EXIST::FUNCTION:DH
+DH_check                                2367	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 Camellia_set_key                        2368	3_0_0	EXIST::FUNCTION:CAMELLIA,DEPRECATEDIN_3_0
 X509_LOOKUP_by_issuer_serial            2369	3_0_0	EXIST::FUNCTION:
 ASN1_BMPSTRING_free                     2370	3_0_0	EXIST::FUNCTION:
@@ -2545,7 +2545,7 @@ MD4_Update                              2598	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_
 X509_STORE_CTX_set_time                 2599	3_0_0	EXIST::FUNCTION:
 ENGINE_set_default_DH                   2600	3_0_0	EXIST::FUNCTION:ENGINE
 X509_ocspid_print                       2601	3_0_0	EXIST::FUNCTION:
-DH_set_method                           2602	3_0_0	EXIST::FUNCTION:DH
+DH_set_method                           2602	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 EVP_rc2_64_cbc                          2603	3_0_0	EXIST::FUNCTION:RC2
 CRYPTO_THREAD_get_current_id            2604	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_CTX_set_cb                     2605	3_0_0	EXIST::FUNCTION:
@@ -2841,7 +2841,7 @@ i2d_RSAPrivateKey_fp                    2902	3_0_0	EXIST::FUNCTION:RSA,STDIO
 X509_REQ_print                          2903	3_0_0	EXIST::FUNCTION:
 RSA_size                                2904	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,RSA
 EVP_CIPHER_CTX_iv_noconst               2905	3_0_0	EXIST::FUNCTION:
-DH_set_default_method                   2906	3_0_0	EXIST::FUNCTION:DH
+DH_set_default_method                   2906	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 X509_ALGOR_new                          2907	3_0_0	EXIST::FUNCTION:
 EVP_aes_192_ofb                         2908	3_0_0	EXIST::FUNCTION:
 EVP_des_ede3_cfb1                       2909	3_0_0	EXIST::FUNCTION:DES
@@ -2911,7 +2911,7 @@ TS_REQ_get_cert_req                     2973	3_0_0	EXIST::FUNCTION:TS
 BIO_pop                                 2974	3_0_0	EXIST::FUNCTION:
 SHA256_Final                            2975	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_set1_DH                        2976	3_0_0	EXIST::FUNCTION:DH
-DH_get_ex_data                          2977	3_0_0	EXIST::FUNCTION:DH
+DH_get_ex_data                          2977	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 CRYPTO_secure_malloc                    2978	3_0_0	EXIST::FUNCTION:
 TS_RESP_get_status_info                 2979	3_0_0	EXIST::FUNCTION:TS
 HMAC_CTX_new                            2980	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0
@@ -2939,7 +2939,7 @@ TS_RESP_CTX_set_status_info             3001	3_0_0	EXIST::FUNCTION:TS
 BIO_f_nbio_test                         3002	3_0_0	EXIST::FUNCTION:
 SEED_ofb128_encrypt                     3003	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,SEED
 d2i_RSAPrivateKey_bio                   3004	3_0_0	EXIST::FUNCTION:RSA
-DH_KDF_X9_42                            3005	3_0_0	EXIST::FUNCTION:CMS,DH
+DH_KDF_X9_42                            3005	3_0_0	EXIST::FUNCTION:CMS,DEPRECATEDIN_3_0,DH
 EVP_PKEY_meth_set_signctx               3006	3_0_0	EXIST::FUNCTION:
 X509_CRL_get_version                    3007	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_meth_get0_info                 3008	3_0_0	EXIST::FUNCTION:
@@ -3163,7 +3163,7 @@ ACCESS_DESCRIPTION_free                 3228	3_0_0	EXIST::FUNCTION:
 BN_nist_mod_384                         3229	3_0_0	EXIST::FUNCTION:
 i2d_EC_PUBKEY_fp                        3230	3_0_0	EXIST::FUNCTION:EC,STDIO
 ENGINE_set_default_pkey_meths           3231	3_0_0	EXIST::FUNCTION:ENGINE
-DH_bits                                 3232	3_0_0	EXIST::FUNCTION:DH
+DH_bits                                 3232	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 i2d_X509_ALGORS                         3233	3_0_0	EXIST::FUNCTION:
 EVP_camellia_192_cfb1                   3234	3_0_0	EXIST::FUNCTION:CAMELLIA
 TS_RESP_CTX_add_failure_info            3235	3_0_0	EXIST::FUNCTION:TS
@@ -3343,7 +3343,7 @@ BUF_MEM_new_ex                          3412	3_0_0	EXIST::FUNCTION:
 RSA_padding_add_X931                    3413	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,RSA
 BN_get0_nist_prime_256                  3414	3_0_0	EXIST::FUNCTION:
 CRYPTO_memcmp                           3415	3_0_0	EXIST::FUNCTION:
-DH_check_pub_key                        3416	3_0_0	EXIST::FUNCTION:DH
+DH_check_pub_key                        3416	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 ASN1_mbstring_copy                      3417	3_0_0	EXIST::FUNCTION:
 PKCS7_set_type                          3418	3_0_0	EXIST::FUNCTION:
 BIO_gets                                3419	3_0_0	EXIST::FUNCTION:
@@ -3951,33 +3951,33 @@ RSA_get0_crt_params                     4038	3_0_0	EXIST::FUNCTION:RSA
 DH_set0_pqg                             4039	3_0_0	EXIST::FUNCTION:DH
 DH_clear_flags                          4041	3_0_0	EXIST::FUNCTION:DH
 DH_get0_key                             4042	3_0_0	EXIST::FUNCTION:DH
-DH_get0_engine                          4043	3_0_0	EXIST::FUNCTION:DH
+DH_get0_engine                          4043	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 DH_set0_key                             4044	3_0_0	EXIST::FUNCTION:DH
-DH_set_length                           4045	3_0_0	EXIST::FUNCTION:DH
+DH_set_length                           4045	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 DH_test_flags                           4046	3_0_0	EXIST::FUNCTION:DH
-DH_get_length                           4047	3_0_0	EXIST::FUNCTION:DH
+DH_get_length                           4047	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 DH_get0_pqg                             4048	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get_compute_key                 4049	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set1_name                       4050	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set_init                        4051	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get_finish                      4052	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get0_name                       4053	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set_generate_params             4054	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set_compute_key                 4055	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set_flags                       4056	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get_generate_params             4057	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get_flags                       4058	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set_finish                      4059	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get0_app_data                   4060	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set0_app_data                   4061	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get_init                        4062	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get_bn_mod_exp                  4063	3_0_0	EXIST::FUNCTION:DH
-DH_meth_new                             4064	3_0_0	EXIST::FUNCTION:DH
-DH_meth_dup                             4065	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set_bn_mod_exp                  4066	3_0_0	EXIST::FUNCTION:DH
-DH_meth_set_generate_key                4067	3_0_0	EXIST::FUNCTION:DH
-DH_meth_free                            4068	3_0_0	EXIST::FUNCTION:DH
-DH_meth_get_generate_key                4069	3_0_0	EXIST::FUNCTION:DH
+DH_meth_get_compute_key                 4049	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set1_name                       4050	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set_init                        4051	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_get_finish                      4052	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_get0_name                       4053	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set_generate_params             4054	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set_compute_key                 4055	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set_flags                       4056	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_get_generate_params             4057	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_get_flags                       4058	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set_finish                      4059	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_get0_app_data                   4060	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set0_app_data                   4061	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_get_init                        4062	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_get_bn_mod_exp                  4063	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_new                             4064	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_dup                             4065	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set_bn_mod_exp                  4066	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_set_generate_key                4067	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_free                            4068	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_meth_get_generate_key                4069	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 DH_set_flags                            4070	3_0_0	EXIST::FUNCTION:DH
 X509_STORE_CTX_get_obj_by_subject       4071	3_0_0	EXIST::FUNCTION:
 X509_OBJECT_free                        4072	3_0_0	EXIST::FUNCTION:
@@ -4250,7 +4250,7 @@ EVP_PKEY_meth_remove                    4343	3_0_0	EXIST::FUNCTION:
 OPENSSL_sk_reserve                      4344	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_set1_engine                    4347	3_0_0	EXIST::FUNCTION:ENGINE
 DH_new_by_nid                           4348	3_0_0	EXIST::FUNCTION:DH
-DH_get_nid                              4349	3_0_0	EXIST::FUNCTION:DH
+DH_get_nid                              4349	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 CRYPTO_get_alloc_counts                 4350	3_0_0	EXIST::FUNCTION:CRYPTO_MDEBUG
 OPENSSL_sk_new_reserve                  4351	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_asn1_set_check                 4352	3_0_0	EXIST::FUNCTION:
@@ -4270,9 +4270,9 @@ EVP_PKEY_meth_get_public_check          4365	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_meth_get_param_check           4366	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_asn1_set_public_check          4367	3_0_0	EXIST::FUNCTION:
 EVP_PKEY_asn1_set_param_check           4368	3_0_0	EXIST::FUNCTION:
-DH_check_ex                             4369	3_0_0	EXIST::FUNCTION:DH
-DH_check_pub_key_ex                     4370	3_0_0	EXIST::FUNCTION:DH
-DH_check_params_ex                      4371	3_0_0	EXIST::FUNCTION:DH
+DH_check_ex                             4369	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_check_pub_key_ex                     4370	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
+DH_check_params_ex                      4371	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,DH
 RSA_generate_multi_prime_key            4372	3_0_0	EXIST::FUNCTION:DEPRECATEDIN_3_0,RSA
 RSA_get_multi_prime_extra_count         4373	3_0_0	EXIST::FUNCTION:RSA
 OCSP_resp_get0_signer                   4374	3_0_0	EXIST::FUNCTION:OCSP


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