Copyright year updates


Reviewed-by: Richard Levitte <levitte@openssl.org>
Release: yes

riscv: Clarify dual-licensing wording for GCM and AES

The original text for the Apache + BSD dual licensing for riscv GCM and AES
perlasm was taken from other openSSL users like crypto/c

riscv: Clarify dual-licensing wording for GCM and AES

The original text for the Apache + BSD dual licensing for riscv GCM and AES
perlasm was taken from other openSSL users like crypto/crypto/LPdir_unix.c .

Though Eric pointed out that the dual-licensing text could be read in a
way negating the second license [0] and suggested to clarify the text
even more.

So do this here for all of the GCM, AES and shared riscv.pm .

We already had the agreement of all involved developers for the actual
dual licensing in [0] and [1], so this is only a better clarification
for this.

[0] https://github.com/openssl/openssl/pull/20649#issuecomment-1589558790
[1] https://github.com/openssl/openssl/pull/21018

Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21357)

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Fix typos found by codespell

Typos in doc/man* will be fixed in a different commit.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(M

Fix typos found by codespell

Typos in doc/man* will be fixed in a different commit.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20910)

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riscv: GCM: dual-license under Apache + 2-clause BSD

To allow re-use of the already reviewed openSSL crypto code for RISC-V in
other projects - like the Linux kernel, add a second licens

riscv: GCM: dual-license under Apache + 2-clause BSD

To allow re-use of the already reviewed openSSL crypto code for RISC-V in
other projects - like the Linux kernel, add a second license (2-clause BSD)
to the recently added GCM ghash functions.

Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
(Merged from https://github.com/openssl/openssl/pull/20649)

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riscv: GCM: Implement GHASH()

RISC-V currently only offers a GMULT() callback for accelerated
processing. Let's implement the missing piece to have GHASH()
available as well. Like GM

riscv: GCM: Implement GHASH()

RISC-V currently only offers a GMULT() callback for accelerated
processing. Let's implement the missing piece to have GHASH()
available as well. Like GMULT(), we provide a variant for
systems with the Zbkb extension (including brev8).

The integration follows the existing pattern for GMULT()
in RISC-V. We keep the C implementation as we need to decide
if we can call an optimized routine at run-time.
The C implementation is the fall-back in case we don't have
any extensions available that can be used to accelerate
the calculation.

Tested with all combinations of possible extensions
on QEMU (limiting the available instructions accordingly).
No regressions observed.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20078)

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riscv: GCM: Simplify GCM calculation

The existing GCM calculation provides some potential
for further optimizations. Let's use the demo code
from the RISC-V cryptography extension gr

riscv: GCM: Simplify GCM calculation

The existing GCM calculation provides some potential
for further optimizations. Let's use the demo code
from the RISC-V cryptography extension groups
(https://github.com/riscv/riscv-crypto), which represents
the extension architect's intended use of the clmul instruction.

The GCM calculation depends on bit and byte reversal.
Therefore, we use the corresponding instructions to do that
(if available at run-time).

The resulting computation becomes quite compact and passes
all tests.

Note, that a side-effect of this change is a reduced register
usage in .gmult(), which opens the door for an efficient .ghash()
implementation.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20078)

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riscv: GCM: Use riscv.pm

A recent commit introduced a Perl module for common code.
This patch changes the GCM code to use this module, removes duplicated code,
and moves the instruct

riscv: GCM: Use riscv.pm

A recent commit introduced a Perl module for common code.
This patch changes the GCM code to use this module, removes duplicated code,
and moves the instruction encoding functions into the module.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20078)

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Add clmul-based gmult for riscv64 with Zbb, Zbc

ghash-riscv64.pl implements 128-bit galois field multiplication for
use in the GCM mode using RISC-V carryless multiplication primitives.

Add clmul-based gmult for riscv64 with Zbb, Zbc

ghash-riscv64.pl implements 128-bit galois field multiplication for
use in the GCM mode using RISC-V carryless multiplication primitives.

The clmul-accelerated routine can be selected by setting the Zbb and
Zbc bits of the OPENSSL_riscvcap environment variable at runtime.

Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Signed-off-by: Henry Brausen <henry.brausen@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17640)

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