| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- pass HOSTLDFLAGS when compiling single .c host programs
- build genksyms lexer and parser files instead of using shipped
versions
- rename *-asn1.[ch] to *.asn1.[ch] for suffix consistency
- let the top .gitignore globally ignore artifacts generated by flex,
bison, and asn1_compiler
- let the top Makefile globally clean artifacts generated by flex,
bison, and asn1_compiler
- use safer .SECONDARY marker instead of .PRECIOUS to prevent
intermediate files from being removed
- support -fmacro-prefix-map option to make __FILE__ a relative path
- fix # escaping to prepare for the future GNU Make release
- clean up deb-pkg by using debian tools instead of handrolled
source/changes generation
- improve rpm-pkg portability by supporting kernel-install as a
fallback of new-kernel-pkg
- extend Kconfig listnewconfig target to provide more information
* tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: extend output of 'listnewconfig'
kbuild: rpm-pkg: use kernel-install as a fallback for new-kernel-pkg
Kbuild: fix # escaping in .cmd files for future Make
kbuild: deb-pkg: split generating packaging and build
kbuild: use -fmacro-prefix-map to make __FILE__ a relative path
kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers
kbuild: rename *-asn1.[ch] to *.asn1.[ch]
kbuild: clean up *-asn1.[ch] patterns from top-level Makefile
.gitignore: move *-asn1.[ch] patterns to the top-level .gitignore
kbuild: add %.dtb.S and %.dtb to 'targets' automatically
kbuild: add %.lex.c and %.tab.[ch] to 'targets' automatically
genksyms: generate lexer and parser during build instead of shipping
kbuild: clean up *.lex.c and *.tab.[ch] patterns from top-level Makefile
.gitignore: move *.lex.c *.tab.[ch] patterns to the top-level .gitignore
kbuild: use HOSTLDFLAGS for single .c executables
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Our convention is to distinguish file types by suffixes with a period
as a separator.
*-asn1.[ch] is a different pattern from other generated sources such
as *.lex.c, *.tab.[ch], *.dtb.S, etc. More confusing, files with
'-asn1.[ch]' are generated files, but '_asn1.[ch]' are checked-in
files:
net/netfilter/nf_conntrack_h323_asn1.c
include/linux/netfilter/nf_conntrack_h323_asn1.h
include/linux/sunrpc/gss_asn1.h
Rename generated files to *.asn1.[ch] for consistency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Clean up these patterns from the top Makefile to omit 'clean-files'
in each Makefile.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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These are common patterns where source files are parsed by the
asn1_compiler.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips
Pull MIPS updates from James Hogan:
"These are the main MIPS changes for 4.17. Rough overview:
(1) generic platform: Add support for Microsemi Ocelot SoCs
(2) crypto: Add CRC32 and CRC32C HW acceleration module
(3) Various cleanups and misc improvements
More detailed summary:
Miscellaneous:
- hang more efficiently on halt/powerdown/restart
- pm-cps: Block system suspend when a JTAG probe is present
- expand make help text for generic defconfigs
- refactor handling of legacy defconfigs
- determine the entry point from the ELF file header to fix microMIPS
for certain toolchains
- introduce isa-rev.h for MIPS_ISA_REV and use to simplify other code
Minor cleanups:
- DTS: boston/ci20: Unit name cleanups and correction
- kdump: Make the default for PHYSICAL_START always 64-bit
- constify gpio_led in Alchemy, AR7, and TXX9
- silence a couple of W=1 warnings
- remove duplicate includes
Platform support:
Generic platform:
- add support for Microsemi Ocelot
- dt-bindings: Add vendor prefix for Microsemi Corporation
- dt-bindings: Add bindings for Microsemi SoCs
- add ocelot SoC & PCB123 board DTS files
- MAINTAINERS: Add entry for Microsemi MIPS SoCs
- enable crc32-mips on r6 configs
ath79:
- fix AR724X_PLL_REG_PCIE_CONFIG offset
BCM47xx:
- firmware: Use mac_pton() for MAC address parsing
- add Luxul XAP1500/XWR1750 WiFi LEDs
- use standard reset button for Luxul XWR-1750
BMIPS:
- enable CONFIG_BRCMSTB_PM in bmips_stb_defconfig for build coverage
- add STB PM, wake-up timer, watchdog DT nodes
Octeon:
- drop '.' after newlines in printk calls
ralink:
- pci-mt7621: Enable PCIe on MT7688"
* tag 'mips_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (37 commits)
MIPS: BCM47XX: Use standard reset button for Luxul XWR-1750
MIPS: BCM47XX: Add Luxul XAP1500/XWR1750 WiFi LEDs
MIPS: Make the default for PHYSICAL_START always 64-bit
MIPS: Use the entry point from the ELF file header
MAINTAINERS: Add entry for Microsemi MIPS SoCs
MIPS: generic: Add support for Microsemi Ocelot
MIPS: mscc: Add ocelot PCB123 device tree
MIPS: mscc: Add ocelot dtsi
dt-bindings: mips: Add bindings for Microsemi SoCs
dt-bindings: Add vendor prefix for Microsemi Corporation
MIPS: ath79: Fix AR724X_PLL_REG_PCIE_CONFIG offset
MIPS: pci-mt7620: Enable PCIe on MT7688
MIPS: pm-cps: Block system suspend when a JTAG probe is present
MIPS: VDSO: Replace __mips_isa_rev with MIPS_ISA_REV
MIPS: BPF: Replace __mips_isa_rev with MIPS_ISA_REV
MIPS: cpu-features.h: Replace __mips_isa_rev with MIPS_ISA_REV
MIPS: Introduce isa-rev.h to define MIPS_ISA_REV
MIPS: Hang more efficiently on halt/powerdown/restart
FIRMWARE: bcm47xx_nvram: Replace mac address parsing
MIPS: BMIPS: Add Broadcom STB watchdog nodes
...
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This module registers crc32 and crc32c algorithms that use the
optional CRC32[bhwd] and CRC32C[bhwd] instructions in MIPSr6 cores.
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@mips.com>
Signed-off-by: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-mips@linux-mips.org
Cc: linux-crypto@vger.kernel.org
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Patchwork: https://patchwork.linux-mips.org/patch/18601/
[jhogan@kernel.org: Add CRYPTO_ALG_OPTIONAL_KEY flag on Eric Biggers'
suggestion, due to commit a208fa8f3303 ("crypto: hash - annotate
algorithms taking optional key") in v4.16-rc1]
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syzbot reported :
BUG: KMSAN: uninit-value in alg_bind+0xe3/0xd90 crypto/af_alg.c:162
We need to check addr_len before dereferencing sa (or uaddr)
Fixes: bb30b8848c85 ("crypto: af_alg - whitelist mask and type")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Stephan Mueller <smueller@chronox.de>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- add AEAD support to crypto engine
- allow batch registration in simd
Algorithms:
- add CFB mode
- add speck block cipher
- add sm4 block cipher
- new test case for crct10dif
- improve scheduling latency on ARM
- scatter/gather support to gcm in aesni
- convert x86 crypto algorithms to skcihper
Drivers:
- hmac(sha224/sha256) support in inside-secure
- aes gcm/ccm support in stm32
- stm32mp1 support in stm32
- ccree driver from staging tree
- gcm support over QI in caam
- add ks-sa hwrng driver"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (212 commits)
crypto: ccree - remove unused enums
crypto: ahash - Fix early termination in hash walk
crypto: brcm - explicitly cast cipher to hash type
crypto: talitos - don't leak pointers to authenc keys
crypto: qat - don't leak pointers to authenc keys
crypto: picoxcell - don't leak pointers to authenc keys
crypto: ixp4xx - don't leak pointers to authenc keys
crypto: chelsio - don't leak pointers to authenc keys
crypto: caam/qi - don't leak pointers to authenc keys
crypto: caam - don't leak pointers to authenc keys
crypto: lrw - Free rctx->ext with kzfree
crypto: talitos - fix IPsec cipher in length
crypto: Deduplicate le32_to_cpu_array() and cpu_to_le32_array()
crypto: doc - clarify hash callbacks state machine
crypto: api - Keep failed instances alive
crypto: api - Make crypto_alg_lookup static
crypto: api - Remove unused crypto_type lookup function
crypto: chelsio - Remove declaration of static function from header
crypto: inside-secure - hmac(sha224) support
crypto: inside-secure - hmac(sha256) support
..
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When we have an unaligned SG list entry where there is no leftover
aligned data, the hash walk code will incorrectly return zero as if
the entire SG list has been processed.
This patch fixes it by moving onto the next page instead.
Reported-by: Eli Cooper <elicooper@gmx.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The buffer rctx->ext contains potentially sensitive data and should
be freed with kzfree.
Cc: <stable@vger.kernel.org>
Fixes: 700cb3f5fe75 ("crypto: lrw - Convert to skcipher")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Deduplicate le32_to_cpu_array() and cpu_to_le32_array() by moving them
to the generic header.
No functional change implied.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch reverts commit 9c521a200bc3 ("crypto: api - remove
instance when test failed") and fixes the underlying problem
in a different way.
To recap, prior to the reverted commit, an instance that fails
a self-test is kept around. However, it would satisfy any new
lookups against its name and therefore the system may accumlulate
an unbounded number of failed instances for the same algorithm
name.
The reverted commit fixed it by unregistering the instance. Hoever,
this still does not prevent the creation of the same failed instance
over and over again each time the name is looked up.
This patch fixes it by keeping the failed instance around, just as
we would if it were a normal algorithm. However, the lookup code
has been udpated so that we do not attempt to create another
instance as long as this failed one is still registered. Of course,
you could still force a new creation by deleting the instance from
user-space.
A new error (ELIBBAD) has been commandeered for this purpose and
will be returned when all registered algorithm of a given name
have failed the self-test.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The function crypto_alg_lookup is only usd within the crypto API
and should be not be exported to the modules. This patch marks
it as a static function.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The lookup function in crypto_type was only used for the implicit
IV generators which have been completely removed from the crypto
API.
This patch removes the lookup function as it is now useless.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In order to be able to test yield support under preempt, add a test
vector for CRC-T10DIF that is long enough to take multiple iterations
(and thus possible preemption between them) of the primary loop of the
accelerated x86 and arm64 implementations.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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On the quest to remove all VLAs from the kernel[1], this switches to
a pair of kmalloc regions instead of using the stack. This also moves
the get_random_bytes() after all allocations (and drops the needless
"nbytes" variable).
[1] https://lkml.org/lkml/2018/3/7/621
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add testmgr tests for the newly introduced SM4 ECB symmetric cipher.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Introduce the SM4 cipher algorithms (OSCCA GB/T 32907-2016).
SM4 (GBT.32907-2016) is a cryptographic standard issued by the
Organization of State Commercial Administration of China (OSCCA)
as an authorized cryptographic algorithms for the use within China.
SMS4 was originally created for use in protecting wireless
networks, and is mandated in the Chinese National Standard for
Wireless LAN WAPI (Wired Authentication and Privacy Infrastructure)
(GB.15629.11-2003).
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Apparently the ecdh use case was in bluetooth which always has single
element scatterlists, so the ecdh module was hard coded to expect
them. Now we're using this in TPM, we need multi-element
scatterlists, so remove this limitation.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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TPM security routines require encryption and decryption with AES in
CFB mode, so add it to the Linux Crypto schemes. CFB is basically a
one time pad where the pad is generated initially from the encrypted
IV and then subsequently from the encrypted previous block of
ciphertext. The pad is XOR'd into the plain text to get the final
ciphertext.
https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#CFB
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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All users of ablk_helper have been converted over to crypto_simd, so
remove ablk_helper.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Now that all users of lrw_crypt() have been removed in favor of the LRW
template wrapping an ECB mode algorithm, remove lrw_crypt(). Also
remove crypto/lrw.h as that is no longer needed either; and fold
'struct lrw_table_ctx' into 'struct priv', lrw_init_table() into
setkey(), and lrw_free_table() into exit_tfm().
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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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 <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the AESNI AVX and AESNI AVX2 implementations of Camellia from
the (deprecated) ablkcipher and blkcipher interfaces over to the
skcipher interface. Note that this includes replacing the use of
ablk_helper with crypto_simd.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the x86 asm implementation of Camellia from the (deprecated)
blkcipher interface over to the skcipher interface.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The XTS template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic XTS code themselves via xts_crypt().
Remove the xts-camellia-asm algorithm which did this. Users who request
xts(camellia) and previously would have gotten xts-camellia-asm will now
get xts(ecb-camellia-asm) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-camellia-asm algorithm which did this. Users who request
lrw(camellia) and previously would have gotten lrw-camellia-asm will now
get lrw(ecb-camellia-asm) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-camellia-aesni-avx2 algorithm which did this. Users who
request lrw(camellia) and previously would have gotten
lrw-camellia-aesni-avx2 will now get lrw(ecb-camellia-aesni-avx2)
instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-camellia-aesni algorithm which did this. Users who
request lrw(camellia) and previously would have gotten
lrw-camellia-aesni will now get lrw(ecb-camellia-aesni) instead, which
is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the x86 asm implementation of Triple DES from the (deprecated)
blkcipher interface over to the skcipher interface.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the x86 asm implementation of Blowfish from the (deprecated)
blkcipher interface over to the skcipher interface.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the AVX implementation of CAST6 from the (deprecated) ablkcipher
and blkcipher interfaces over to the skcipher interface. Note that this
includes replacing the use of ablk_helper with crypto_simd.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-cast6-avx algorithm which did this. Users who request
lrw(cast6) and previously would have gotten lrw-cast6-avx will now get
lrw(ecb-cast6-avx) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the AVX implementation of CAST5 from the (deprecated) ablkcipher
and blkcipher interfaces over to the skcipher interface. Note that this
includes replacing the use of ablk_helper with crypto_simd.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the AVX implementation of Twofish from the (deprecated)
ablkcipher and blkcipher interfaces over to the skcipher interface.
Note that this includes replacing the use of ablk_helper with
crypto_simd.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-twofish-avx algorithm which did this. Users who request
lrw(twofish) and previously would have gotten lrw-twofish-avx will now
get lrw(ecb-twofish-avx) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the 3-way implementation of Twofish from the (deprecated)
blkcipher interface over to the skcipher interface.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The XTS template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic XTS code themselves via xts_crypt().
Remove the xts-twofish-3way algorithm which did this. Users who request
xts(twofish) and previously would have gotten xts-twofish-3way will now
get xts(ecb-twofish-3way) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-twofish-3way algorithm which did this. Users who request
lrw(twofish) and previously would have gotten lrw-twofish-3way will now
get lrw(ecb-twofish-3way) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the AVX and AVX2 implementations of Serpent from the
(deprecated) ablkcipher and blkcipher interfaces over to the skcipher
interface. Note that this includes replacing the use of ablk_helper
with crypto_simd.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-serpent-avx algorithm which did this. Users who request
lrw(serpent) and previously would have gotten lrw-serpent-avx will now
get lrw(ecb-serpent-avx) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-serpent-avx2 algorithm which did this. Users who request
lrw(serpent) and previously would have gotten lrw-serpent-avx2 will now
get lrw(ecb-serpent-avx2) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Convert the SSE2 implementation of Serpent from the (deprecated)
ablkcipher and blkcipher interfaces over to the skcipher interface.
Note that this includes replacing the use of ablk_helper with
crypto_simd.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The XTS template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic XTS code themselves via xts_crypt().
Remove the xts-serpent-sse2 algorithm which did this. Users who request
xts(serpent) and previously would have gotten xts-serpent-sse2 will now
get xts(ecb-serpent-sse2) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The LRW template now wraps an ECB mode algorithm rather than the block
cipher directly. Therefore it is now redundant for crypto modules to
wrap their ECB code with generic LRW code themselves via lrw_crypt().
Remove the lrw-serpent-sse2 algorithm which did this. Users who request
lrw(serpent) and previously would have gotten lrw-serpent-sse2 will now
get lrw(ecb-serpent-sse2) instead, which is just as fast.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add a function to crypto_simd that registers an array of skcipher
algorithms, then allocates and registers the simd wrapper algorithms for
them. It assumes the naming scheme where the names of the underlying
algorithms are prefixed with two underscores.
Also add the corresponding 'unregister' function.
Most of the x86 crypto modules will be able to use these.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add test vectors for Speck64-XTS, generated in userspace using C code.
The inputs were borrowed from the AES-XTS test vectors, with key lengths
adjusted.
xts-speck64-neon passes these tests. However, they aren't currently
applicable for the generic XTS template, as that only supports a 128-bit
block size.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add test vectors for Speck128-XTS, generated in userspace using C code.
The inputs were borrowed from the AES-XTS test vectors.
Both xts(speck128-generic) and xts-speck128-neon pass these tests.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Export the Speck constants and transform context and the ->setkey(),
->encrypt(), and ->decrypt() functions so that they can be reused by the
ARM NEON implementation of Speck-XTS. The generic key expansion code
will be reused because it is not performance-critical and is not
vectorizable, while the generic encryption and decryption functions are
needed as fallbacks and for the XTS tweak encryption.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add a generic implementation of Speck, including the Speck128 and
Speck64 variants. Speck is a lightweight block cipher that can be much
faster than AES on processors that don't have AES instructions.
We are planning to offer Speck-XTS (probably Speck128/256-XTS) as an
option for dm-crypt and fscrypt on Android, for low-end mobile devices
with older CPUs such as ARMv7 which don't have the Cryptography
Extensions. Currently, such devices are unencrypted because AES is not
fast enough, even when the NEON bit-sliced implementation of AES is
used. Other AES alternatives such as Twofish, Threefish, Camellia,
CAST6, and Serpent aren't fast enough either; it seems that only a
modern ARX cipher can provide sufficient performance on these devices.
This is a replacement for our original proposal
(https://patchwork.kernel.org/patch/10101451/) which was to offer
ChaCha20 for these devices. However, the use of a stream cipher for
disk/file encryption with no space to store nonces would have been much
more insecure than we thought initially, given that it would be used on
top of flash storage as well as potentially on top of F2FS, neither of
which is guaranteed to overwrite data in-place.
Speck has been somewhat controversial due to its origin. Nevertheless,
it has a straightforward design (it's an ARX cipher), and it appears to
be the leading software-optimized lightweight block cipher currently,
with the most cryptanalysis. It's also easy to implement without side
channels, unlike AES. Moreover, we only intend Speck to be used when
the status quo is no encryption, due to AES not being fast enough.
We've also considered a novel length-preserving encryption mode based on
ChaCha20 and Poly1305. While theoretically attractive, such a mode
would be a brand new crypto construction and would be more complicated
and difficult to implement efficiently in comparison to Speck-XTS.
There is confusion about the byte and word orders of Speck, since the
original paper doesn't specify them. But we have implemented it using
the orders the authors recommended in a correspondence with them. The
test vectors are taken from the original paper but were mapped to byte
arrays using the recommended byte and word orders.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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