Commit Graph

651 Commits

Author SHA1 Message Date
Tomas Mraz
7ed6de997f Copyright year updates
Reviewed-by: Neil Horman <nhorman@openssl.org>
Release: yes
2024-09-05 09:35:49 +02:00
Joerg Schmidbauer
25f5d7b85f s390x: support CPACF sha3/shake performance improvements
On newer machines the SHA3/SHAKE performance of CPACF instructions KIMD and KLMD
can be enhanced by using additional modifier bits. This allows the application
to omit initializing the ICV, but also affects the internal processing of the
instructions. Performance is mostly gained when processing short messages.

The new CPACF feature is backwards compatible with older machines, i.e. the new
modifier bits are ignored on older machines. However, to save the ICV
initialization, the application must detect the MSA level and omit the ICV
initialization only if this feature is supported.

Signed-off-by: Joerg Schmidbauer <jschmidb@de.ibm.com>

Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/25235)
2024-08-29 19:26:06 +02:00
Dimitri Papadopoulos
001b92d68d Prefer ARRAY_SIZE(...)
In OpenSSL, it's actually OSSL_NELEM() in "internal/nelem.h".

Found by running the checkpatch.pl Linux script to enforce coding style.

Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22097)
2024-07-22 06:55:35 -04:00
Dimitri Papadopoulos
962431d58b that open brace { should be on the previous line
Found by running the checkpatch.pl Linux script to enforce coding style.

Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22097)
2024-07-22 06:55:35 -04:00
Tomas Mraz
b911fef216 Intentionally break EVP_DigestFinal for SHAKE128 and SHAKE256
It will work only if OSSL_DIGEST_PARAM_XOFLEN is set.

Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/24105)
2024-05-15 12:10:32 +02:00
Merreck
7c30519765 sha512.c: Grammar Fixes and Spell Checks in Implementation Notes
Added commas for sentence openers in Implementation Notes. Fixed
spelling of "reasons" section of the notes.

CLA: trivial

Co-authored-by: Tom Cosgrove <tom.cosgrove@arm.com>

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24241)
2024-04-25 10:44:01 +02:00
Theo Buehler
25391acc14 Unable to run asm code on OpenBSD (amd64)
In order to get asm code running on OpenBSD we must place
all constants into .rodata sections.

davidben@ also pointed out we need to adjust `x86_64-xlate.pl` perlasm
script to adjust read-olny sections for various flavors (OSes). Those
changes were cherry-picked from boringssl.

closes #23312

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/23997)
2024-04-17 09:38:06 +02:00
Richard Levitte
ed0f79c7ae Fix a few incorrect paths in some build.info files
The following files referred to ../liblegacy.a when they should have
referred to ../../liblegacy.a.  This cause the creation of a mysterious
directory 'crypto/providers', and because of an increased strictness
with regards to where directories are created, configuration failure
on some platforms.

Fixes #23436

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
(Merged from https://github.com/openssl/openssl/pull/23452)

(cherry picked from commit 667b45454a)
2024-02-02 14:12:49 +01:00
Tomas Mraz
f58d39fb9f SHA3_squeeze(): The next argument is int
Amend the assembler so it uses only 32bit value.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22750)
2023-11-23 15:13:53 +00:00
Tomas Mraz
69d4d5282f keccak1600-armv4.pl: Further fix for the DigestSqueeze() support
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22750)
2023-11-23 15:13:53 +00:00
slontis
f5a63bf1c0 Fix SHA3_squeeze on armv4.
For armv4 - Only the first 4 parameters can be passed via registers
(r0..r3).

As all of the general registers are already used,
r11 was used to store the 'next' param.
R11 is now pushed/poped on entry/exit.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22719)
2023-11-15 09:02:30 +01:00
Rohan McLure
ed5e478261 ppc64: Fix SHA3_squeeze
Fix the conditional on the 'next' parameter passed into SHA3_squeeze.

Reported-by: David Benjamin <davidben@davidben.net>
Signed-off-by: Rohan McLure <rmclure@linux.ibm.com>

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22722)
2023-11-15 08:33:28 +01:00
Holger Dengler
bff6248033 Support multiple calls of low level SHA3_squeeze() for s390x.
The low level SHA3_Squeeze() function needed to change slightly so
that it can handle multiple squeezes. Support this on s390x
architecture as well.

Signed-off-by: Holger Dengler <dengler@linux.ibm.com>

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22221)
2023-11-10 14:03:43 +01:00
slontis
5366490822 Add EVP_DigestSqueeze() API.
Fixes #7894

This allows SHAKE to squeeze multiple times with different output sizes.

The existing EVP_DigestFinalXOF() API has been left as a one shot
operation. A similar interface is used by another toolkit.

The low level SHA3_Squeeze() function needed to change slightly so
that it can handle multiple squeezes. This involves changing the
assembler code so that it passes a boolean to indicate whether
the Keccak function should be called on entry.
At the provider level, the squeeze is buffered, so that it only requests
a multiple of the blocksize when SHA3_Squeeze() is called. On the first
call the value is zero, on subsequent calls the value passed is 1.

This PR is derived from the excellent work done by @nmathewson in
https://github.com/openssl/openssl/pull/7921

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21511)
2023-11-10 13:27:00 +01:00
Phoebe Chen
837f7df8c0 riscv: Support SHA-512 family on platforms with vlen >= 128.
This patch supports SHA-512, SHA-512/224, SHA-512/256 on platforms with
vlen greater than 128,

Signed-off-by: Phoebe Chen <phoebe.chen@sifive.com>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21923)
2023-10-26 15:55:50 +01:00
Phoebe Chen
a1668660a7 riscv: Code optimization for SHA-256.
Keep SHA-256 constant values in registers to save the loading time.

Move the constant loading for sha256 into a separate subroutine.
By creating a dedicated sub routine for loading sha256 constants, the
code can be made more modular and easier to modify in the future.

Relaxing the SHA256 constraint, zvknhb also supports SHA256.

Simplify the H and mask initialization flows.

Signed-off-by: Phoebe Chen <phoebe.chen@sifive.com>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21923)
2023-10-26 15:55:50 +01:00
Charalampos Mitrodimas
9c22a240da riscv: sha512: Provide a Zvknhb-based implementation
The upcoming RISC-V vector crypto extensions feature
a Zvknhb extension, that provides sha512-specific istructions.
This patch provides an implementation that utilizes this
extension if available.

Tested on QEMU and no regressions observed.

Signed-off-by: Charalampos Mitrodimas <charalampos.mitrodimas@vrull.eu>
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21923)
2023-10-26 15:55:49 +01:00
Charalampos Mitrodimas
db44a69aa5 crypto: sha512: Add mechanism to keep C code as fallback for SHA512_ASM
Currently, architectures have to decide if they want the C code or an
arch-specific implementation. Let's add a macro, that allows to keep the C
code even if SHA512_ASM is defined (but rename it from sha512_block_data_order
to sha512_block_data_order_c). The macro INCLUDE_C_SHA512 can be used by
architectures, that want the C code as fallback code.

Signed-off-by: Charalampos Mitrodimas <charalampos.mitrodimas@vrull.eu>
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21923)
2023-10-26 15:55:49 +01:00
Charalampos Mitrodimas
1707306652 riscv: sha256: Provide a Zvknha-based implementation
The upcoming RISC-V vector crypto extensions feature
a Zvknha extension, that provides sha256-specific instructions.
This patch provides an implementation that utilizes this
extension if available.

Tested on QEMU and no regressions observed.

Signed-off-by: Charalampos Mitrodimas <charalampos.mitrodimas@vrull.eu>
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21923)
2023-10-26 15:55:49 +01:00
Charalampos Mitrodimas
204a1c9854 crypto: sha256: Add mechanism to keep C code as fallback for SHA256_ASM
Currently, architectures have to decide if they want the C code or an
arch-specific implementation. Let's add a macro, that allows to keep the C
code even if SHA256_ASM is defined (but rename it from sha256_block_data_order
to sha256_block_data_order_c). The macro INCLUDE_C_SHA256 can be used by
architectures, that want the C code as fallback code.

Signed-off-by: Charalampos Mitrodimas <charalampos.mitrodimas@vrull.eu>
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21923)
2023-10-26 15:55:49 +01:00
Matt Caswell
556009c596 Copyright year updates
Reviewed-by: Richard Levitte <levitte@openssl.org>
Release: yes
2023-09-28 14:23:29 +01:00
Dimitri Papadopoulos
e22ebb893e Bad function definition
void f() should probably be void f(void)

Found by running the checkpatch.pl Linux script to enforce coding style.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21468)
2023-09-11 10:15:30 +02:00
Matt Caswell
da1c088f59 Copyright year updates
Reviewed-by: Richard Levitte <levitte@openssl.org>
Release: yes
2023-09-07 09:59:15 +01:00
Amir Ayupov
2fd82c2283 Move Keccak rhotates tables to rodata
rhotates tables are placed to .text section which confuses tools such as BOLT.
Move them to rodata to unbreak and avoid polluting icache/iTLB with data.

CLA: trivial

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Paul Yang <kaishen.yy@antfin.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21440)
2023-07-14 11:15:45 +10:00
Fergus Dall
81bafac5cb Add support for SHA256/192
This is defined in NIST SP 800-208 as the truncation to 192 bits of
SHA256. Unlike other truncated hashes in the SHA2 suite, this variant
doesn't have a different initial state, it is just a pure truncation
of the output.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21180)
2023-06-28 08:00:43 +10:00
Tom Cosgrove
7b508cd1e1 Ensure there's only one copy of OPENSSL_armcap_P in libcrypto.a
Change-Id: Ia94e528a2d55934435de6a2949784c52eb38d82f

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20621)
2023-03-29 12:21:31 +02:00
Richard Levitte
119b7b5f2a crypto/sha/asm/sha512-ia64.pl: When checking assembler file names, ignore case
The use case is that uppercase .ASM extension may be used on some platforms,
and we were only testing for the lowercase extension.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/19604)
2022-11-04 10:37:13 +01:00
Juergen Christ
a8b238f0e4 Fix SHA, SHAKE, and KECCAK ASM flag passing
Flags for ASM implementations of SHA, SHAKE, and KECCAK were only passed to
the FIPS provider and not to the default or legacy provider.  This left some
potential for optimization.  Pass the correct flags also to these providers.

Signed-off-by: Juergen Christ <jchrist@linux.ibm.com>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Patrick Steuer <patrick.steuer@de.ibm.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18747)
2022-07-11 09:28:19 +10:00
Sebastian Andrzej Siewior
9968c77539 Rename x86-32 assembly files from .s to .S.
Rename x86-32 assembly files from .s to .S. While processing the .S file
gcc will use the pre-processor whic will evaluate macros and ifdef. This
is turn will be used to enable the endbr32 opcode based on the __CET__
define.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18353)
2022-05-24 13:16:06 +10:00
Henry Brausen
cb2764f2a8 Add riscv64 asm_arch to linux64-riscv64 target
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/18275)
2022-05-11 18:02:03 +10:00
Matt Caswell
fecb3aae22 Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Release: yes
2022-05-03 13:34:51 +01:00
Weiguo Li
1cc94e2fa7 Fix outdated comments
Update the comment "../md32_common.h" to "crypto/md32_common.h".

CLA: trivial

Signed-off-by: Weiguo Li <liwg06@foxmail.com>

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/17670)
2022-02-10 13:52:17 +01:00
Tom Cosgrove
3a23f01268 aarch64: fix branch target indications in arm64cpuid.pl and keccak1600
Add missing AARCH64_VALID_CALL_TARGET to armv8_rng_probe(). Also add
these to the functions defined by gen_random(), and note that this Perl
sub prints the assembler out directly, not going via the $code xlate
mechanism (and therefore coming before the include of arm_arch.h). So
fix this too.

In KeccakF1600_int, AARCH64_SIGN_LINK_REGISTER functions as
AARCH64_VALID_CALL_TARGET on BTI-only builds, so it needs to come before
the 'adr' line.

Change-Id: If241efe71591c88253a3e36647ced00300c3c1a3

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17653)
2022-02-09 13:24:31 +11:00
Anton Blanchard
8f9842fd03 sha/asm/keccak1600-ppc64.pl: Load data in 8 byte chunks on little endian
We currently load data byte by byte in order to byteswap it on big
endian. On little endian we can just do 8 byte loads.

A SHAKE128 benchmark runs 10% faster on POWER9 with this patch applied.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8455)
2021-11-11 10:58:46 +01:00
x2018
1287dabd0b fix some code with obvious wrong coding style
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16918)
2021-10-28 13:10:46 +10:00
Mark Fedorov
657d1927c6 RISC-V support for the SHA256
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16710)
2021-10-04 11:27:22 +02:00
Russ Butler
19e277dd19 aarch64: support BTI and pointer authentication in assembly
This change adds optional support for
- Armv8.3-A Pointer Authentication (PAuth) and
- Armv8.5-A Branch Target Identification (BTI)
features to the perl scripts.

Both features can be enabled with additional compiler flags.
Unless any of these are enabled explicitly there is no code change at
all.

The extensions are briefly described below. Please read the appropriate
chapters of the Arm Architecture Reference Manual for the complete
specification.

Scope
-----

This change only affects generated assembly code.

Armv8.3-A Pointer Authentication
--------------------------------

Pointer Authentication extension supports the authentication of the
contents of registers before they are used for indirect branching
or load.

PAuth provides a probabilistic method to detect corruption of register
values. PAuth signing instructions generate a Pointer Authentication
Code (PAC) based on the value of a register, a seed and a key.
The generated PAC is inserted into the original value in the register.
A PAuth authentication instruction recomputes the PAC, and if it matches
the PAC in the register, restores its original value. In case of a
mismatch, an architecturally unmapped address is generated instead.

With PAuth, mitigation against ROP (Return-oriented Programming) attacks
can be implemented. This is achieved by signing the contents of the
link-register (LR) before it is pushed to stack. Once LR is popped,
it is authenticated. This way a stack corruption which overwrites the
LR on the stack is detectable.

The PAuth extension adds several new instructions, some of which are not
recognized by older hardware. To support a single codebase for both pre
Armv8.3-A targets and newer ones, only NOP-space instructions are added
by this patch. These instructions are treated as NOPs on hardware
which does not support Armv8.3-A. Furthermore, this patch only considers
cases where LR is saved to the stack and then restored before branching
to its content. There are cases in the code where LR is pushed to stack
but it is not used later. We do not address these cases as they are not
affected by PAuth.

There are two keys available to sign an instruction address: A and B.
PACIASP and PACIBSP only differ in the used keys: A and B, respectively.
The keys are typically managed by the operating system.

To enable generating code for PAuth compile with
-mbranch-protection=<mode>:

- standard or pac-ret: add PACIASP and AUTIASP, also enables BTI
  (read below)
- pac-ret+b-key: add PACIBSP and AUTIBSP

Armv8.5-A Branch Target Identification
--------------------------------------

Branch Target Identification features some new instructions which
protect the execution of instructions on guarded pages which are not
intended branch targets.

If Armv8.5-A is supported by the hardware, execution of an instruction
changes the value of PSTATE.BTYPE field. If an indirect branch
lands on a guarded page the target instruction must be one of the
BTI <jc> flavors, or in case of a direct call or jump it can be any
other instruction. If the target instruction is not compatible with the
value of PSTATE.BTYPE a Branch Target Exception is generated.

In short, indirect jumps are compatible with BTI <j> and <jc> while
indirect calls are compatible with BTI <c> and <jc>. Please refer to the
specification for the details.

Armv8.3-A PACIASP and PACIBSP are implicit branch target
identification instructions which are equivalent with BTI c or BTI jc
depending on system register configuration.

BTI is used to mitigate JOP (Jump-oriented Programming) attacks by
limiting the set of instructions which can be jumped to.

BTI requires active linker support to mark the pages with BTI-enabled
code as guarded. For ELF64 files BTI compatibility is recorded in the
.note.gnu.property section. For a shared object or static binary it is
required that all linked units support BTI. This means that even a
single assembly file without the required note section turns-off BTI
for the whole binary or shared object.

The new BTI instructions are treated as NOPs on hardware which does
not support Armv8.5-A or on pages which are not guarded.

To insert this new and optional instruction compile with
-mbranch-protection=standard (also enables PAuth) or +bti.

When targeting a guarded page from a non-guarded page, weaker
compatibility restrictions apply to maintain compatibility between
legacy and new code. For detailed rules please refer to the Arm ARM.

Compiler support
----------------

Compiler support requires understanding '-mbranch-protection=<mode>'
and emitting the appropriate feature macros (__ARM_FEATURE_BTI_DEFAULT
and __ARM_FEATURE_PAC_DEFAULT). The current state is the following:

-------------------------------------------------------
| Compiler | -mbranch-protection | Feature macros     |
+----------+---------------------+--------------------+
| clang    | 9.0.0               | 11.0.0             |
+----------+---------------------+--------------------+
| gcc      | 9                   | expected in 10.1+  |
-------------------------------------------------------

Available Platforms
------------------

Arm Fast Model and QEMU support both extensions.

https://developer.arm.com/tools-and-software/simulation-models/fast-models
https://www.qemu.org/

Implementation Notes
--------------------

This change adds BTI landing pads even to assembly functions which are
likely to be directly called only. In these cases, landing pads might
be superfluous depending on what code the linker generates.
Code size and performance impact for these cases would be negligible.

Interaction with C code
-----------------------

Pointer Authentication is a per-frame protection while Branch Target
Identification can be turned on and off only for all code pages of a
whole shared object or static binary. Because of these properties if
C/C++ code is compiled without any of the above features but assembly
files support any of them unconditionally there is no incompatibility
between the two.

Useful Links
------------

To fully understand the details of both PAuth and BTI it is advised to
read the related chapters of the Arm Architecture Reference Manual
(Arm ARM):
https://developer.arm.com/documentation/ddi0487/latest/

Additional materials:

"Providing protection for complex software"
https://developer.arm.com/architectures/learn-the-architecture/providing-protection-for-complex-software

Arm Compiler Reference Guide Version 6.14: -mbranch-protection
https://developer.arm.com/documentation/101754/0614/armclang-Reference/armclang-Command-line-Options/-mbranch-protection?lang=en

Arm C Language Extensions (ACLE)
https://developer.arm.com/docs/101028/latest

Addional Notes
--------------

This patch is a copy of the work done by Tamas Petz in boringssl. It
contains the changes from the following commits:

aarch64: support BTI and pointer authentication in assembly
    Change-Id: I4335f92e2ccc8e209c7d68a0a79f1acdf3aeb791
    URL: https://boringssl-review.googlesource.com/c/boringssl/+/42084
aarch64: Improve conditional compilation
    Change-Id: I14902a64e5f403c2b6a117bc9f5fb1a4f4611ebf
    URL: https://boringssl-review.googlesource.com/c/boringssl/+/43524
aarch64: Fix name of gnu property note section
    Change-Id: I6c432d1c852129e9c273f6469a8b60e3983671ec
    URL: https://boringssl-review.googlesource.com/c/boringssl/+/44024

Change-Id: I2d95ebc5e4aeb5610d3b226f9754ee80cf74a9af

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16674)
2021-10-01 09:35:38 +02:00
marcfedorow
611685adc0 RISC-V support for the SHA512
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16638)
2021-09-30 20:45:17 +10:00
Matt Caswell
54b4053130 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16176)
2021-07-29 15:41:35 +01:00
Tomas Mraz
52f7e44ec8 Split bignum code out of the sparcv9cap.c
Fixes #15978

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16019)
2021-07-15 09:33:04 +02:00
Tomas Mraz
3d178db73b ppccap.c: Split out algorithm-specific functions
Fixes #13336

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15828)
2021-06-25 08:49:45 +01:00
Pauli
987d7da327 Include a local static buffer for the SHA helper functions
This functionality existed in 1.1.1 but was lost.

Fixes #15718

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15752)
2021-06-16 18:30:28 +10:00
Pauli
807bb42554 sha: convert SHA one shot macros back to being functions
Fixes #15655

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
(Merged from https://github.com/openssl/openssl/pull/15668)
2021-06-10 14:18:06 +10:00
Matt Caswell
0789c7d834 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15381)
2021-05-20 14:22:33 +01:00
Dr. David von Oheimb
4d49b68504 Crypto: Add deprecation compatibility declarations for SHA* message digest functions
Also add hints to SHA256_Init.pod and CHANGES.md how to replace SHA256() etc.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14741)
2021-05-08 14:41:36 +02:00
Richard Levitte
848af5e8fe Drop libimplementations.a
libimplementations.a was a nice idea, but had a few flaws:

1.  The idea to have common code in libimplementations.a and FIPS
    sensitive helper functions in libfips.a / libnonfips.a didn't
    catch on, and we saw full implementation ending up in them instead
    and not appearing in libimplementations.a at all.

2.  Because more or less ALL algorithm implementations were included
    in libimplementations.a (the idea being that the appropriate
    objects from it would be selected automatically by the linker when
    building the shared libraries), it's very hard to find only the
    implementation source that should go into the FIPS module, with
    the result that the FIPS checksum mechanism include source files
    that it shouldn't

To mitigate, we drop libimplementations.a, but retain the idea of
collecting implementations in static libraries.  With that, we not
have:

libfips.a

    Includes all implementations that should become part of the FIPS
    provider.

liblegacy.a

    Includes all implementations that should become part of the legacy
    provider.

libdefault.a

    Includes all implementations that should become part of the
    default and base providers.

With this, libnonfips.a becomes irrelevant and is dropped.
libcommon.a is retained to include common provider code that can be
used uniformly by all providers.

Fixes #15157

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15171)
2021-05-07 10:17:23 +02:00
Matt Caswell
605856d72c Update copyright year
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13533)
2020-11-26 14:18:57 +00:00
Pauli
b68a947fd2 Rename SHA3 internal functions so they have an ossl_ prefix
These are: keccak_kmac_init(), sha3_final(), sha3_init(), sha3_reset() and
sha3_update().

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13417)
2020-11-19 07:39:13 +10:00
Pauli
5687afdf03 rename sha1_ctrl to ossl_sha1_ctrl.
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13417)
2020-11-19 07:39:13 +10:00
Romain Geissler
a135948dda Fix aarch64 static linking into shared libraries (see issue #10842 and pull request #11464)
This tries to fix the following link errors on aarch64 when using OpenSSL
3.0.0 alpha 6, compiling it with "no-shared" and -fPIC in CFLAGS, then
trying to use the resulting OpenSSL static libraries in the build of
elfutils, which embed libcrypto.a into libdebuginfo.so, which hides all
symbols (except the libdebuginfod ones) by default:

/opt/1A/toolchain/aarch64-v4.0.86/lib/gcc/aarch64-1a-linux-gnu/8.4.1/../../../../aarch64-1a-linux-gnu/bin/ld: /workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-sha1-armv8.o): relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC
/workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-sha1-armv8.o): in function `sha1_block_data_order':
(.text+0x0): dangerous relocation: unsupported relocation
/opt/1A/toolchain/aarch64-v4.0.86/lib/gcc/aarch64-1a-linux-gnu/8.4.1/../../../../aarch64-1a-linux-gnu/bin/ld: /workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-chacha-armv8.o): relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC
/workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-chacha-armv8.o): in function `ChaCha20_ctr32':
(.text+0x6c): dangerous relocation: unsupported relocation
/opt/1A/toolchain/aarch64-v4.0.86/lib/gcc/aarch64-1a-linux-gnu/8.4.1/../../../../aarch64-1a-linux-gnu/bin/ld: /workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-sha256-armv8.o): relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC /workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-sha256-armv8.o): in function `sha256_block_data_order':
(.text+0x0): dangerous relocation: unsupported relocation
/opt/1A/toolchain/aarch64-v4.0.86/lib/gcc/aarch64-1a-linux-gnu/8.4.1/../../../../aarch64-1a-linux-gnu/bin/ld: /workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-sha512-armv8.o): relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC /workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-sha512-armv8.o): in function `sha512_block_data_order':
(.text+0x0): dangerous relocation: unsupported relocation
/opt/1A/toolchain/aarch64-v4.0.86/lib/gcc/aarch64-1a-linux-gnu/8.4.1/../../../../aarch64-1a-linux-gnu/bin/ld: /workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-poly1305-armv8.o): relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `OPENSSL_armcap_P' which may bind externally can not be used when making a shared object; recompile with -fPIC
/workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-poly1305-armv8.o): in function `poly1305_init':
(.text+0x14): dangerous relocation: unsupported relocation
/workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-poly1305-armv8.o): in function `poly1305_emit_neon':
(.text+0x8e4): relocation truncated to fit: R_AARCH64_CONDBR19 against symbol `poly1305_emit' defined in .text section in /workdir/build/build-pack/build-pack-temporary-static-dependencies/install/lib/libcrypto.a(libcrypto-lib-poly1305-armv8.o)

In poly1305-armv8.pl, hide symbols the same way they are hidden in poly1305-x86_64.pl.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13056)
2020-10-22 12:16:49 +10:00