Use as small dh key size as possible to support the security

Longer private key sizes unnecessarily raise the cycles needed to
compute the shared secret without any increase of the real

Use as small dh key size as possible to support the security

Longer private key sizes unnecessarily raise the cycles needed to
compute the shared secret without any increase of the real security.

We use minimum key sizes as defined in RFC7919.

For arbitrary parameters we cannot know whether they are safe
primes (we could test but that would be too inefficient) we have
to keep generating large keys.

However we now set a small dh->length when we are generating safe prime
parameters because we know it is safe to use small keys with them.

That means users need to regenerate the parameters if they
want to take the performance advantage of small private key.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18480)

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Update copyright year

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Release: yes

str[n]casecmp => OPENSSL_strncasecmp

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18069)

Move e_os.h to include/internal

Including e_os.h with a path from a header file doesn't work well on
certain exotic platform. It simply fails to build.

Since we don't seem to b

Move e_os.h to include/internal

Including e_os.h with a path from a header file doesn't work well on
certain exotic platform. It simply fails to build.

Since we don't seem to be able to stop ourselves, the better move is
to move e_os.h to an include directory that's part of the inclusion
path given to the compiler.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17641)

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Fixes related to separation of DH and DHX types

Fix dh_rfc5114 option in genpkey.

Fixes #14145
Fixes #13956
Fixes #13952
Fixes #13871
Fixes #14054
Fixes #14444

Fixes related to separation of DH and DHX types

Fix dh_rfc5114 option in genpkey.

Fixes #14145
Fixes #13956
Fixes #13952
Fixes #13871
Fixes #14054
Fixes #14444

Updated documentation for app to indicate what options are available for
DH and DHX keys.

DH and DHX now have different keymanager gen_set_params() methods.

Added CHANGES entry to indicate the breaking change.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14883)

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Fix external symbols for bn

Partial fix for #12964

This adds ossl_ names for symbols related to bn_*

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from htt

Fix external symbols for bn

Partial fix for #12964

This adds ossl_ names for symbols related to bn_*

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14296)

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Update copyright year

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14235)

Do not match RFC 5114 groups without q as it is significant

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14189)

EVP_PKEY & DH: Make DH EVP_PKEY_CTX parameter ctrls / setters more available

EVP_PKEY_CTX_set_dh_ functions were only available when DH was enabled
('no-dsa' not configured). However, t

EVP_PKEY & DH: Make DH EVP_PKEY_CTX parameter ctrls / setters more available

EVP_PKEY_CTX_set_dh_ functions were only available when DH was enabled
('no-dsa' not configured). However, that makes it impossible to use
these functions with an engine or a provider that happens to implement
DH. This change solves that problem by shuffling these functions to
more appropriate places.

By consequence, there are a number of places where we can remove the
check of OPENSSL_NO_DH. This requires some re-arrangements of
internal tables to translate between numeric identities and names.

Partially fixes #13550

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13589)

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