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menuconfig ARM_CRYPTO
bool "ARM Accelerated Cryptographic Algorithms"
depends on ARM
help
Say Y here to choose from a selection of cryptographic algorithms
implemented using ARM specific CPU features or instructions.
if ARM_CRYPTO
config CRYPTO_SHA1_ARM
tristate "SHA1 digest algorithm (ARM-asm)"
select CRYPTO_SHA1
select CRYPTO_HASH
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using optimized ARM assembler.
config CRYPTO_SHA1_ARM_NEON
tristate "SHA1 digest algorithm (ARM NEON)"
depends on KERNEL_MODE_NEON
select CRYPTO_SHA1_ARM
select CRYPTO_SHA1
select CRYPTO_HASH
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using optimized ARM NEON assembly, when NEON instructions are
available.
config CRYPTO_SHA1_ARM_CE
tristate "SHA1 digest algorithm (ARM v8 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_SHA1_ARM
select CRYPTO_HASH
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using special ARMv8 Crypto Extensions.
config CRYPTO_SHA2_ARM_CE
tristate "SHA-224/256 digest algorithm (ARM v8 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_SHA256_ARM
select CRYPTO_HASH
help
SHA-256 secure hash standard (DFIPS 180-2) implemented
using special ARMv8 Crypto Extensions.
config CRYPTO_SHA256_ARM
tristate "SHA-224/256 digest algorithm (ARM-asm and NEON)"
select CRYPTO_HASH
depends on !CPU_V7M
help
SHA-256 secure hash standard (DFIPS 180-2) implemented
using optimized ARM assembler and NEON, when available.
config CRYPTO_SHA512_ARM
tristate "SHA-384/512 digest algorithm (ARM-asm and NEON)"
select CRYPTO_HASH
depends on !CPU_V7M
help
SHA-512 secure hash standard (DFIPS 180-2) implemented
using optimized ARM assembler and NEON, when available.
config CRYPTO_AES_ARM
tristate "AES cipher algorithms (ARM-asm)"
depends on ARM
select CRYPTO_ALGAPI
select CRYPTO_AES
help
Use optimized AES assembler routines for ARM platforms.
AES cipher algorithms (FIPS-197). AES uses the Rijndael
algorithm.
Rijndael appears to be consistently a very good performer in
both hardware and software across a wide range of computing
environments regardless of its use in feedback or non-feedback
modes. Its key setup time is excellent, and its key agility is
good. Rijndael's very low memory requirements make it very well
suited for restricted-space environments, in which it also
demonstrates excellent performance. Rijndael's operations are
among the easiest to defend against power and timing attacks.
The AES specifies three key sizes: 128, 192 and 256 bits
See <http://csrc.nist.gov/encryption/aes/> for more information.
config CRYPTO_AES_ARM_BS
tristate "Bit sliced AES using NEON instructions"
depends on KERNEL_MODE_NEON
select CRYPTO_ALGAPI
select CRYPTO_AES_ARM
select CRYPTO_ABLK_HELPER
help
Use a faster and more secure NEON based implementation of AES in CBC,
CTR and XTS modes
Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
and for XTS mode encryption, CBC and XTS mode decryption speedup is
around 25%. (CBC encryption speed is not affected by this driver.)
This implementation does not rely on any lookup tables so it is
believed to be invulnerable to cache timing attacks.
config CRYPTO_AES_ARM_CE
tristate "Accelerated AES using ARMv8 Crypto Extensions"
depends on KERNEL_MODE_NEON
select CRYPTO_ALGAPI
select CRYPTO_ABLK_HELPER
help
Use an implementation of AES in CBC, CTR and XTS modes that uses
ARMv8 Crypto Extensions
config CRYPTO_GHASH_ARM_CE
tristate "PMULL-accelerated GHASH using ARMv8 Crypto Extensions"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_CRYPTD
help
Use an implementation of GHASH (used by the GCM AEAD chaining mode)
that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
that is part of the ARMv8 Crypto Extensions
endif
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