Commit Graph

9 Commits

Author SHA1 Message Date
Matt Caswell
33388b44b6 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11616)
2020-04-23 13:55:52 +01:00
Shane Lontis
96ebe52e89 Add EVP_PKEY_gettable_params support for accessing EVP_PKEY key data fields
Currently only RSA, EC and ECX are supported (DH and DSA need to be added to the keygen
PR's seperately because the fields supported have changed significantly).

The API's require the keys to be provider based.

Made the keymanagement export and get_params functions share the same code by supplying
support functions that work for both a OSSL_PARAM_BLD as well as a OSSL_PARAM[].
This approach means that complex code is not required to build an
empty OSSL_PARAM[] with the correct sized fields before then doing a second
pass to populate the array.

The RSA factor arrays have been changed to use unique key names to simplify the interface
needed by the user.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11365)
2020-04-01 15:51:18 +10:00
Richard Levitte
acb90ba8ff EVP: Downgrade keys rather than upgrade
Upgrading EVP_PKEYs from containing legacy keys to containing provider
side keys proved to be risky, with a number of unpleasant corner
cases, and with functions like EVP_PKEY_get0_DSA() failing
unexpectedly.

We therefore change course, and instead of upgrading legacy internal
keys to provider side internal keys, we downgrade provider side
internal keys to legacy ones.  To be able to do this, we add
|import_from| and make it a callback function designed for
evp_keymgmt_export().

This means that evp_pkey_upgrade_to_provider() is replaced with
evp_pkey_downgrade().

EVP_PKEY_copy_parameters() is the most deeply affected function of
this change.

Fixes #11366

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11375)
2020-03-25 17:01:10 +01:00
Richard Levitte
badf51c869 EVP: Add evp_pkey_upgrade_to_provider(), for EVP_PKEY upgrades
This function "upgrades" a key from a legacy key container to a
provider side key container.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11148)
2020-02-29 05:39:43 +01:00
Richard Levitte
3f7ce7f102 Refactor evp_pkey_make_provided() to do legacy to provider export
Previously, evp-keymgmt_util_export_to_provider() took care of all
kinds of exports of EVP_PKEYs to provider side keys, be it from its
legacy key or from another provider side key.  This works most of the
times, but there may be cases where the caller wants to be a bit more
in control of what sort of export happens when.

Also, when it's time to remove all legacy stuff, that job will be much
easier if we have a better separation between legacy support and
support of provided stuff, as far as we can take it.

This changes moves the support of legacy key to provider side key
export from evp-keymgmt_util_export_to_provider() to
evp_pkey_make_provided(), and makes sure the latter is called from all
EVP_PKEY functions that handle legacy stuff.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11074)
2020-02-22 01:19:54 +01:00
Richard Levitte
72ec9648fe Adapt test/keymgmt_internal_test.c to the redesigned interface
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11006)
2020-02-07 09:37:56 +01:00
Richard Levitte
68552cdef7 Reorganize the internal evp_keymgmt functions
Some of the evp_keymgmt_ functions are just wrappers around the
EVP_KEYMGMT function pointers.  We move those from keymgmt_lib.c to
keymgmt_meth.c.

Other evp_keymgmt_ functions are utility functions to help the rest of
the EVP functions.  Since their names are easily confused with the
functions that were moved to keymgmt_meth.c, we rename them so they
all start with evp_keymgmt_util_.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11006)
2020-02-07 09:37:56 +01:00
Richard Levitte
1640d48c5b CORE & PROV: make export of key data leaner through callback
Exporting data from a provider owned domainparams or key is quite an
ordeal, with having to figure out what parameter keys an
implementation supports, call the export function a first time to find
out how large each parameter buffer must be, allocate the necessary
space for it, and call the export function again.

So how about letting the export function build up the key data params
and call back with that?  This change implements exactly such a
mechanism.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10414)
2019-11-14 10:53:14 +01:00
Richard Levitte
5a02d13d3e test/keymgmt_internal_test.c: New test of keymgmt internals
This tests diverse internal KEYMGMT features.  The current existing
test checks that evp_keymgmt_export_to_provider() passes the key data
correctly through two instances of the default provider, and that the
resulting numbers at the end match the initial numbers.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10190)
2019-10-17 18:07:45 +02:00