fix for Missing null check after OPENSSL_zalloc

Fixes #10283

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Patrick Steuer <patrick.steuer@de.ibm.com>
(Merged fro

fix for Missing null check after OPENSSL_zalloc

Fixes #10283

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Patrick Steuer <patrick.steuer@de.ibm.com>
(Merged from https://github.com/openssl/openssl/pull/10296)

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evp_keymgmt_export_to_provider(): adjust OSSL_PARAM array for transfer

It may be that the OSSL_PARAM array we used for getting parameter
values for a key had a few too many entries. The

evp_keymgmt_export_to_provider(): adjust OSSL_PARAM array for transfer

It may be that the OSSL_PARAM array we used for getting parameter
values for a key had a few too many entries. These are detected by
their return_size == 0. Before making second export call, we prune
away these items so we only ask for parameters that exist.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10190)

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PKEY: adapt the export_to_provider funtions to handle domain params too

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10169)

Reorganize local header files

Apart from public and internal header files, there is a third type called
local header files, which are located next to source files in the source
direc

Reorganize local header files

Apart from public and internal header files, there is a third type called
local header files, which are located next to source files in the source
directory. Currently, they have different suffixes like

'*_lcl.h', '*_local.h', or '*_int.h'

This commit changes the different suffixes to '*_local.h' uniformly.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9333)

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Reorganize private crypto header files

Currently, there are two different directories which contain internal
header files of libcrypto which are meant to be shared internally:

W

Reorganize private crypto header files

Currently, there are two different directories which contain internal
header files of libcrypto which are meant to be shared internally:

While header files in 'include/internal' are intended to be shared
between libcrypto and libssl, the files in 'crypto/include/internal'
are intended to be shared inside libcrypto only.

To make things complicated, the include search path is set up in such
a way that the directive #include "internal/file.h" could refer to
a file in either of these two directoroes. This makes it necessary
in some cases to add a '_int.h' suffix to some files to resolve this
ambiguity:

#include "internal/file.h" # located in 'include/internal'
#include "internal/file_int.h" # located in 'crypto/include/internal'

This commit moves the private crypto headers from

'crypto/include/internal' to 'include/crypto'

As a result, the include directives become unambiguous

#include "internal/file.h" # located in 'include/internal'
#include "crypto/file.h" # located in 'include/crypto'

hence the superfluous '_int.h' suffixes can be stripped.

The files 'store_int.h' and 'store.h' need to be treated specially;
they are joined into a single file.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9333)

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Add an internal API to access the KEYMGMT provider functions

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9312)

Add evp_keymgmt_clear_pkey_cache() and use it

This function clears the cache of provider key references, and is used
in evp_keymgmt_export_to_provider() when the internal key is dirty, a

Add evp_keymgmt_clear_pkey_cache() and use it

This function clears the cache of provider key references, and is used
in evp_keymgmt_export_to_provider() when the internal key is dirty, as
well as by EVP_PKEY_free_it().

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9312)

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Add evp_keymgmt_export_to_provider(), for key transfer between providers

This function is used to transport private key materia from whatever
is already attached to the EVP_PKEY to the n

Add evp_keymgmt_export_to_provider(), for key transfer between providers

This function is used to transport private key materia from whatever
is already attached to the EVP_PKEY to the new provider, using key
data export and import functionality.

If a legacy lower level key has been assigned to the EVP_PKEY, we use
its data to create a provider side key, and thereby have a bridge
between old style public key types and the EVP_PKEY on providers.

If successful, this function returns a reference to the appropriate
provider side data for the key.

This can be used by any operation that wants to use this key.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9312)

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