crypto: skcipher - Make skcipher_walk src.virt.addr const

Mark the src.virt.addr field in struct skcipher_walk as a pointer
to const data. This guarantees that the user won't modify the data
which

crypto: skcipher - Make skcipher_walk src.virt.addr const

Mark the src.virt.addr field in struct skcipher_walk as a pointer
to const data. This guarantees that the user won't modify the data
which should be done through dst.virt.addr to ensure that flushing
is done when necessary.

Signed-off-by: Herbert Xu <[email protected]>

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module: Convert symbol namespace to string literal

Clean up the existing export namespace code along the same lines of
commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo)
to __s

module: Convert symbol namespace to string literal

Clean up the existing export namespace code along the same lines of
commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo)
to __section("foo")") and for the same reason, it is not desired for the
namespace argument to be a macro expansion itself.

Scripted using

git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file;
do
awk -i inplace '
/^#define EXPORT_SYMBOL_NS/ {
gsub(/__stringify\(ns\)/, "ns");
print;
next;
}
/^#define MODULE_IMPORT_NS/ {
gsub(/__stringify\(ns\)/, "ns");
print;
next;
}
/MODULE_IMPORT_NS/ {
$0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g");
}
/EXPORT_SYMBOL_NS/ {
if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) {
if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ &&
$0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ &&
$0 !~ /^my/) {
getline line;
gsub(/[[:space:]]*\\$/, "");
gsub(/[[:space:]]/, "", line);
$0 = $0 " " line;
}

$0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/,
"\\1(\\2, \"\\3\")", "g");
}
}
{ print }' $file;
done

Requested-by: Masahiro Yamada <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc
Acked-by: Greg KH <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

show more ...

crypto: xts - use 'spawn' for underlying single-block cipher

Since commit adad556efcdd ("crypto: api - Fix built-in testing
dependency failures"), the following warning appears when booting an
x86_6

crypto: xts - use 'spawn' for underlying single-block cipher

Since commit adad556efcdd ("crypto: api - Fix built-in testing
dependency failures"), the following warning appears when booting an
x86_64 kernel that is configured with
CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y and CONFIG_CRYPTO_AES_NI_INTEL=y,
even when CONFIG_CRYPTO_XTS=y and CONFIG_CRYPTO_AES=y:

alg: skcipher: skipping comparison tests for xts-aes-aesni because xts(ecb(aes-generic)) is unavailable

This is caused by an issue in the xts template where it allocates an
"aes" single-block cipher without declaring a dependency on it via the
crypto_spawn mechanism. This issue was exposed by the above commit
because it reversed the order that the algorithms are tested in.

Specifically, when "xts(ecb(aes-generic))" is instantiated and tested
during the comparison tests for "xts-aes-aesni", the "xts" template
allocates an "aes" crypto_cipher for encrypting tweaks. This resolves
to "aes-aesni". (Getting "aes-aesni" instead of "aes-generic" here is a
bit weird, but it's apparently intended.) Due to the above-mentioned
commit, the testing of "aes-aesni", and the finalization of its
registration, now happens at this point instead of before. At the end
of that, crypto_remove_spawns() unregisters all algorithm instances that
depend on a lower-priority "aes" implementation such as "aes-generic"
but that do not depend on "aes-aesni". However, because "xts" does not
use the crypto_spawn mechanism for its "aes", its dependency on
"aes-aesni" is not recognized by crypto_remove_spawns(). Thus,
crypto_remove_spawns() unexpectedly unregisters "xts(ecb(aes-generic))".

Fix this issue by making the "xts" template use the crypto_spawn
mechanism for its "aes" dependency, like what other templates do.

Note, this fix could be applied as far back as commit f1c131b45410
("crypto: xts - Convert to skcipher"). However, the issue only got
exposed by the much more recent changes to how the crypto API runs the
self-tests, so there should be no need to backport this to very old
kernels. Also, an alternative fix would be to flip the list iteration
order in crypto_start_tests() to restore the original testing order.
I'm thinking we should do that too, since the original order seems more
natural, but it shouldn't be relied on for correctness.

Fixes: adad556efcdd ("crypto: api - Fix built-in testing dependency failures")
Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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crypto: xts - Only access common skcipher fields on spawn

As skcipher spawns may be of the type lskcipher, only the common
fields may be accessed. This was already the case but use the
correct help

crypto: xts - Only access common skcipher fields on spawn

As skcipher spawns may be of the type lskcipher, only the common
fields may be accessed. This was already the case but use the
correct helpers to make this more obvious.

Signed-off-by: Herbert Xu <[email protected]>

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crypto: lrw,xts - Replace strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
o

crypto: lrw,xts - Replace strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().

Direct replacement is safe here since return value of -errno
is used to check for truncation instead of sizeof(dest).

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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crypto: api - Use data directly in completion function

This patch does the final flag day conversion of all completion
functions which are now all contained in the Crypto API.

Signed-off-by: Herber

crypto: api - Use data directly in completion function

This patch does the final flag day conversion of all completion
functions which are now all contained in the Crypto API.

Signed-off-by: Herbert Xu <[email protected]>

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crypto: xts - Handle EBUSY correctly

As it is xts only handles the special return value of EINPROGRESS,
which means that in all other cases it will free data related to the
request.

However, as the

crypto: xts - Handle EBUSY correctly

As it is xts only handles the special return value of EINPROGRESS,
which means that in all other cases it will free data related to the
request.

However, as the caller of xts may specify MAY_BACKLOG, we also need
to expect EBUSY and treat it in the same way. Otherwise backlogged
requests will trigger a use-after-free.

Fixes: 8083b1bf8163 ("crypto: xts - add support for ciphertext stealing")
Signed-off-by: Herbert Xu <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: xts - Add softdep on ecb

The xts module needs ecb to be present as it's meant to work
on top of ecb. This patch adds a softdep so ecb can be included
automatically into the initramfs.

Repo

crypto: xts - Add softdep on ecb

The xts module needs ecb to be present as it's meant to work
on top of ecb. This patch adds a softdep so ecb can be included
automatically into the initramfs.

Reported-by: rftc <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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crypto: remove cipher routines from public crypto API

The cipher routines in the crypto API are mostly intended for templates
implementing skcipher modes generically in software, and shouldn't be
us

crypto: remove cipher routines from public crypto API

The cipher routines in the crypto API are mostly intended for templates
implementing skcipher modes generically in software, and shouldn't be
used outside of the crypto subsystem. So move the prototypes and all
related definitions to a new header file under include/crypto/internal.
Also, let's use the new module namespace feature to move the symbol
exports into a new namespace CRYPTO_INTERNAL.

Signed-off-by: Ard Biesheuvel <[email protected]>
Acked-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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crypto: xts - Replace memcpy() invocation with simple assignment

Colin reports that the memcpy() call in xts_cts_final() trigggers a
"Overlapping buffer in memory copy" warning in Coverity, which is

crypto: xts - Replace memcpy() invocation with simple assignment

Colin reports that the memcpy() call in xts_cts_final() trigggers a
"Overlapping buffer in memory copy" warning in Coverity, which is a
false postive, given that tail is guaranteed to be smaller than or
equal to the distance between source and destination.

However, given that any additional bytes that we copy will be ignored
anyway, we can simply copy XTS_BLOCK_SIZE unconditionally, which means
we can use struct assignment of the array members instead, which is
likely to be more efficient as well.

Addresses-Coverity: ("Overlapping buffer in memory copy")
Fixes: 8083b1bf8163 ("crypto: xts - add support for ciphertext stealing")
Reported-by: Colin Ian King <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: xts - prefix function and struct names with "xts"

Overly-generic names can cause problems like naming collisions,
confusing crash reports, and reduced grep-ability. E.g. see
commit d099ea6e

crypto: xts - prefix function and struct names with "xts"

Overly-generic names can cause problems like naming collisions,
confusing crash reports, and reduced grep-ability. E.g. see
commit d099ea6e6fde ("crypto - Avoid free() namespace collision").

Clean this up for the xts template by prefixing the names with "xts_".

(I didn't use "crypto_xts_" instead because that seems overkill.)

Also constify the tfm context in a couple places, and make
xts_free_instance() use the instance context structure so that it
doesn't just assume the crypto_skcipher_spawn is at the beginning.

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: algapi - add NEED_FALLBACK to INHERITED_FLAGS

CRYPTO_ALG_NEED_FALLBACK is handled inconsistently. When it's requested
to be clear, some templates propagate that request to child algorithms,

crypto: algapi - add NEED_FALLBACK to INHERITED_FLAGS

CRYPTO_ALG_NEED_FALLBACK is handled inconsistently. When it's requested
to be clear, some templates propagate that request to child algorithms,
while others don't.

It's apparently desired for NEED_FALLBACK to be propagated, to avoid
deadlocks where a module tries to load itself while it's being
initialized, and to avoid unnecessarily complex fallback chains where we
have e.g. cbc-aes-$driver falling back to cbc(aes-$driver) where
aes-$driver itself falls back to aes-generic, instead of cbc-aes-$driver
simply falling back to cbc(aes-generic). There have been a number of
fixes to this effect:

commit 89027579bc6c ("crypto: xts - Propagate NEED_FALLBACK bit")
commit d2c2a85cfe82 ("crypto: ctr - Propagate NEED_FALLBACK bit")
commit e6c2e65c70a6 ("crypto: cbc - Propagate NEED_FALLBACK bit")

But it seems that other templates can have the same problems too.

To avoid this whack-a-mole, just add NEED_FALLBACK to INHERITED_FLAGS so
that it's always inherited.

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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crypto: algapi - use common mechanism for inheriting flags

The flag CRYPTO_ALG_ASYNC is "inherited" in the sense that when a
template is instantiated, the template will have CRYPTO_ALG_ASYNC set if

crypto: algapi - use common mechanism for inheriting flags

The flag CRYPTO_ALG_ASYNC is "inherited" in the sense that when a
template is instantiated, the template will have CRYPTO_ALG_ASYNC set if
any of the algorithms it uses has CRYPTO_ALG_ASYNC set.

We'd like to add a second flag (CRYPTO_ALG_ALLOCATES_MEMORY) that gets
"inherited" in the same way. This is difficult because the handling of
CRYPTO_ALG_ASYNC is hardcoded everywhere. Address this by:

- Add CRYPTO_ALG_INHERITED_FLAGS, which contains the set of flags that
have these inheritance semantics.

- Add crypto_algt_inherited_mask(), for use by template ->create()
methods. It returns any of these flags that the user asked to be
unset and thus must be passed in the 'mask' to crypto_grab_*().

- Also modify crypto_check_attr_type() to handle computing the 'mask'
so that most templates can just use this.

- Make crypto_grab_*() propagate these flags to the template instance
being created so that templates don't have to do this themselves.

Make crypto/simd.c propagate these flags too, since it "wraps" another
algorithm, similar to a template.

Based on a patch by Mikulas Patocka <[email protected]>
(https://lore.kernel.org/r/alpine.LRH.2.02.2006301414580.30526@file01.intranet.prod.int.rdu2.redhat.com).

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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gcc-10: avoid shadowing standard library 'free()' in crypto

gcc-10 has started warning about conflicting types for a few new
built-in functions, particularly 'free()'.

This results in warnings like

gcc-10: avoid shadowing standard library 'free()' in crypto

gcc-10 has started warning about conflicting types for a few new
built-in functions, particularly 'free()'.

This results in warnings like:

crypto/xts.c:325:13: warning: conflicting types for built-in function ‘free’; expected ‘void(void *)’ [-Wbuiltin-declaration-mismatch]

because the crypto layer had its local freeing functions called
'free()'.

Gcc-10 is in the wrong here, since that function is marked 'static', and
thus there is no chance of confusion with any standard library function
namespace.

But the simplest thing to do is to just use a different name here, and
avoid this gcc mis-feature.

[ Side note: gcc knowing about 'free()' is in itself not the
mis-feature: the semantics of 'free()' are special enough that a
compiler can validly do special things when seeing it.

So the mis-feature here is that gcc thinks that 'free()' is some
restricted name, and you can't shadow it as a local static function.

Making the special 'free()' semantics be a function attribute rather
than tied to the name would be the much better model ]

Signed-off-by: Linus Torvalds <[email protected]>

show more ...

crypto - Avoid free() namespace collision

gcc-10 complains about using the name of a standard library
function in the kernel, as we are not building with -ffreestanding:

crypto/xts.c:325:13: error:

crypto - Avoid free() namespace collision

gcc-10 complains about using the name of a standard library
function in the kernel, as we are not building with -ffreestanding:

crypto/xts.c:325:13: error: conflicting types for built-in function 'free'; expected 'void(void *)' [-Werror=builtin-declaration-mismatch]
325 | static void free(struct skcipher_instance *inst)
| ^~~~
crypto/lrw.c:290:13: error: conflicting types for built-in function 'free'; expected 'void(void *)' [-Werror=builtin-declaration-mismatch]
290 | static void free(struct skcipher_instance *inst)
| ^~~~
crypto/lrw.c:27:1: note: 'free' is declared in header '<stdlib.h>'

The xts and lrw cipher implementations run into this because they do
not use the conventional namespaced function names.

It might be better to rename all local functions in those files to
help with things like 'ctags' and 'grep', but just renaming these two
avoids the build issue. I picked the more verbose crypto_xts_free()
and crypto_lrw_free() names for consistency with several other drivers
that do use namespaced function names.

Fixes: f1c131b45410 ("crypto: xts - Convert to skcipher")
Fixes: 700cb3f5fe75 ("crypto: lrw - Convert to skcipher")
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: xts - simplify error handling in ->create()

Simplify the error handling in the XTS template's ->create() function by
taking advantage of crypto_drop_skcipher() now accepting (as a no-op) a
s

crypto: xts - simplify error handling in ->create()

Simplify the error handling in the XTS template's ->create() function by
taking advantage of crypto_drop_skcipher() now accepting (as a no-op) a
spawn that hasn't been grabbed yet.

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: skcipher - pass instance to crypto_grab_skcipher()

Initializing a crypto_skcipher_spawn currently requires:

1. Set spawn->base.inst to point to the instance.
2. Call crypto_grab_skcipher().

crypto: skcipher - pass instance to crypto_grab_skcipher()

Initializing a crypto_skcipher_spawn currently requires:

1. Set spawn->base.inst to point to the instance.
2. Call crypto_grab_skcipher().

But there's no reason for these steps to be separate, and in fact this
unneeded complication has caused at least one bug, the one fixed by
commit 6db43410179b ("crypto: adiantum - initialize crypto_spawn::inst")

So just make crypto_grab_skcipher() take the instance as an argument.

To keep the function calls from getting too unwieldy due to this extra
argument, also introduce a 'mask' variable into the affected places
which weren't already using one.

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: remove propagation of CRYPTO_TFM_RES_* flags

The CRYPTO_TFM_RES_* flags were apparently meant as a way to make the
->setkey() functions provide more information about errors. But these
flag

crypto: remove propagation of CRYPTO_TFM_RES_* flags

The CRYPTO_TFM_RES_* flags were apparently meant as a way to make the
->setkey() functions provide more information about errors. But these
flags weren't actually being used or tested, and in many cases they
weren't being set correctly anyway. So they've now been removed.

Also, if someone ever actually needs to start better distinguishing
->setkey() errors (which is somewhat unlikely, as this has been unneeded
for a long time), we'd be much better off just defining different return
values, like -EINVAL if the key is invalid for the algorithm vs.
-EKEYREJECTED if the key was rejected by a policy like "no weak keys".
That would be much simpler, less error-prone, and easier to test.

So just remove CRYPTO_TFM_RES_MASK and all the unneeded logic that
propagates these flags around.

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: xts - add support for ciphertext stealing

Add support for the missing ciphertext stealing part of the XTS-AES
specification, which permits inputs of any size >= the block size.

Cc: Pascal v

crypto: xts - add support for ciphertext stealing

Add support for the missing ciphertext stealing part of the XTS-AES
specification, which permits inputs of any size >= the block size.

Cc: Pascal van Leeuwen <[email protected]>
Cc: Ondrej Mosnacek <[email protected]>
Tested-by: Milan Broz <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of th

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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crypto: run initcalls for generic implementations earlier

Use subsys_initcall for registration of all templates and generic
algorithm implementations, rather than module_init. Then change
cryptomgr

crypto: run initcalls for generic implementations earlier

Use subsys_initcall for registration of all templates and generic
algorithm implementations, rather than module_init. Then change
cryptomgr to use arch_initcall, to place it before the subsys_initcalls.

This is needed so that when both a generic and optimized implementation
of an algorithm are built into the kernel (not loadable modules), the
generic implementation is registered before the optimized one.
Otherwise, the self-tests for the optimized implementation are unable to
allocate the generic implementation for the new comparison fuzz tests.

Note that on arm, a side effect of this change is that self-tests for
generic implementations may run before the unaligned access handler has
been installed. So, unaligned accesses will crash the kernel. This is
arguably a good thing as it makes it easier to detect that type of bug.

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: xts - Fix atomic sleep when walking skcipher

When we perform a walk in the completion function, we need to ensure
that it is atomic.

Reported-by: [email protected]

crypto: xts - Fix atomic sleep when walking skcipher

When we perform a walk in the completion function, we need to ensure
that it is atomic.

Reported-by: [email protected]
Fixes: 78105c7e769b ("crypto: xts - Drop use of auxiliary buffer")
Cc: <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Acked-by: Ondrej Mosnacek <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...

crypto: xts - Drop use of auxiliary buffer

Since commit acb9b159c784 ("crypto: gf128mul - define gf128mul_x_* in
gf128mul.h"), the gf128mul_x_*() functions are very fast and therefore
caching the co

crypto: xts - Drop use of auxiliary buffer

Since commit acb9b159c784 ("crypto: gf128mul - define gf128mul_x_* in
gf128mul.h"), the gf128mul_x_*() functions are very fast and therefore
caching the computed XTS tweaks has only negligible advantage over
computing them twice.

In fact, since the current caching implementation limits the size of
the calls to the child ecb(...) algorithm to PAGE_SIZE (usually 4096 B),
it is often actually slower than the simple recomputing implementation.

This patch simplifies the XTS template to recompute the XTS tweaks from
scratch in the second pass and thus also removes the need to allocate a
dynamic buffer using kmalloc().

As discussed at [1], the use of kmalloc causes deadlocks with dm-crypt.

PERFORMANCE RESULTS
I measured time to encrypt/decrypt a memory buffer of varying sizes with
xts(ecb-aes-aesni) using a tool I wrote ([2]) and the results suggest
that after this patch the performance is either better or comparable for
both small and large buffers. Note that there is a lot of noise in the
measurements, but the overall difference is easy to see.

Old code:
ALGORITHM KEY (b) DATA (B) TIME ENC (ns) TIME DEC (ns)
xts(aes) 256 64 331 328
xts(aes) 384 64 332 333
xts(aes) 512 64 338 348
xts(aes) 256 512 889 920
xts(aes) 384 512 1019 993
xts(aes) 512 512 1032 990
xts(aes) 256 4096 2152 2292
xts(aes) 384 4096 2453 2597
xts(aes) 512 4096 3041 2641
xts(aes) 256 16384 9443 8027
xts(aes) 384 16384 8536 8925
xts(aes) 512 16384 9232 9417
xts(aes) 256 32768 16383 14897
xts(aes) 384 32768 17527 16102
xts(aes) 512 32768 18483 17322

New code:
ALGORITHM KEY (b) DATA (B) TIME ENC (ns) TIME DEC (ns)
xts(aes) 256 64 328 324
xts(aes) 384 64 324 319
xts(aes) 512 64 320 322
xts(aes) 256 512 476 473
xts(aes) 384 512 509 492
xts(aes) 512 512 531 514
xts(aes) 256 4096 2132 1829
xts(aes) 384 4096 2357 2055
xts(aes) 512 4096 2178 2027
xts(aes) 256 16384 6920 6983
xts(aes) 384 16384 8597 7505
xts(aes) 512 16384 7841 8164
xts(aes) 256 32768 13468 12307
xts(aes) 384 32768 14808 13402
xts(aes) 512 32768 15753 14636

[1] https://lkml.org/lkml/2018/8/23/1315
[2] https://gitlab.com/omos/linux-crypto-bench

Signed-off-by: Ondrej Mosnacek <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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crypto: scatterwalk - remove 'chain' argument from scatterwalk_crypto_chain()

All callers pass chain=0 to scatterwalk_crypto_chain().

Remove this unneeded parameter.

Signed-off-by: Eric Biggers <e

crypto: scatterwalk - remove 'chain' argument from scatterwalk_crypto_chain()

All callers pass chain=0 to scatterwalk_crypto_chain().

Remove this unneeded parameter.

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

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crypto: xts - remove xts_crypt()

Now that all users of xts_crypt() have been removed in favor of the XTS
template wrapping an ECB mode algorithm, remove xts_crypt().

Signed-off-by: Eric Biggers <eb

crypto: xts - remove xts_crypt()

Now that all users of xts_crypt() have been removed in favor of the XTS
template wrapping an ECB mode algorithm, remove xts_crypt().

Signed-off-by: Eric Biggers <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

show more ...