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David Howells 70025f84e5 KEYS: Provide key type operations for asymmetric key ops [ver #2]
Provide five new operations in the key_type struct that can be used to
provide access to asymmetric key operations.  These will be implemented for
the asymmetric key type in a later patch and may refer to a key retained in
RAM by the kernel or a key retained in crypto hardware.

     int (*asym_query)(const struct kernel_pkey_params *params,
		       struct kernel_pkey_query *info);
     int (*asym_eds_op)(struct kernel_pkey_params *params,
			const void *in, void *out);
     int (*asym_verify_signature)(struct kernel_pkey_params *params,
			          const void *in, const void *in2);

Since encrypt, decrypt and sign are identical in their interfaces, they're
rolled together in the asym_eds_op() operation and there's an operation ID
in the params argument to distinguish them.

Verify is different in that we supply the data and the signature instead
and get an error value (or 0) as the only result on the expectation that
this may well be how a hardware crypto device may work.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Denis Kenzior <denkenz@gmail.com>
Tested-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: James Morris <james.morris@microsoft.com>
2018-10-26 09:30:46 +01:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2018-10-25 18:14:31 -07:00
block
certs
crypto
Documentation KEYS: Provide key type operations for asymmetric key ops [ver #2] 2018-10-26 09:30:46 +01:00
drivers RISC-V Patches for the 4.20 Merge Window, Part 1 2018-10-25 18:01:29 -07:00
firmware
fs
include KEYS: Provide key type operations for asymmetric key ops [ver #2] 2018-10-26 09:30:46 +01:00
init
ipc
kernel
lib RISC-V Patches for the 4.20 Merge Window, Part 1 2018-10-25 18:01:29 -07:00
LICENSES
mm
net Merge branch 'for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2018-10-25 17:15:46 -07:00
samples
scripts
security
sound
tools KVM updates for v4.20 2018-10-25 17:57:35 -07:00
usr
virt KVM updates for v4.20 2018-10-25 17:57:35 -07:00
.clang-format
.cocciconfig
.get_maintainer.ignore
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MAINTAINERS KVM updates for v4.20 2018-10-25 17:57:35 -07:00
Makefile
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.