The EVP_PKEY MAC implementations had a diversity of controls that were
really the same thing. We did reproduce that for the provider based
MACs, but are changing our minds on this. Instead of that, we now use
one parameter name for passing the name of the underlying ciphers or
digests to a MAC implementation, "cipher" and "digest", and one
parameter name for passing the output size of the MAC, "size".
Then we leave it to the EVP_PKEY->EVP_MAC bridge to translate "md"
to "digest", and "digestsize" to "size".
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9667)
Recently, we added dispatched functions to get parameter descriptions,
and those for operation context parameters ended up being called
something_gettable_ctx_params and something_settable_ctx_params.
The corresponding dispatched functions to actually perform parameter
transfers were previously called something_ctx_get_params and
something_ctx_set_params, which doesn't quite match, so we rename them
to something_get_ctx_params and something_set_ctx_params.
An argument in favor of this name change is English, where you'd
rather say something like "set the context parameters".
This only change the libcrypto <-> provider interface.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9612)
Quite a few adaptations are needed, most prominently the added code
to allow provider based MACs.
As part of this, all the old information functions are gone, except
for EVP_MAC_name(). Some of them will reappear later, for example
EVP_MAC_do_all() in some form.
MACs by EVP_PKEY was particularly difficult to deal with, as they
need to allocate and deallocate EVP_MAC_CTXs "under the hood", and
thereby implicitly fetch the corresponding EVP_MAC. This means that
EVP_MACs can't be constant in a EVP_MAC_CTX, as their reference count
may need to be incremented and decremented as part of the allocation
or deallocation of the EVP_MAC_CTX. It may be that other provider
based EVP operation types may need to be handled in a similar manner.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8877)
