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authorRobert Elliott <elliott@hpe.com>2022-08-20 21:41:50 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2022-08-26 13:50:43 +0300
commitcf514b2a5902ee4f93e9636ace5228fed27f23bb (patch)
tree8c38328e90cf83d3216b8b1bfabfbbd3074aded1 /arch/arm/crypto
parent9bc517155f41fbe387a4602e1860ab1ae0eae638 (diff)
downloadlinux-cf514b2a5902ee4f93e9636ace5228fed27f23bb.tar.xz
crypto: Kconfig - simplify cipher entries
Shorten menu titles and make them consistent: - acronym - name - architecture features in parenthesis - no suffixes like "<something> algorithm", "support", or "hardware acceleration", or "optimized" Simplify help text descriptions, update references, and ensure that https references are still valid. Signed-off-by: Robert Elliott <elliott@hpe.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm/crypto')
-rw-r--r--arch/arm/crypto/Kconfig40
1 files changed, 31 insertions, 9 deletions
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index e64e9b8418d6..3858c4d4cb98 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -144,11 +144,13 @@ config CRYPTO_SHA512_ARM
- NEON (Advanced SIMD) extensions
config CRYPTO_AES_ARM
- tristate "Scalar AES cipher for ARM"
+ tristate "Ciphers: AES"
select CRYPTO_ALGAPI
select CRYPTO_AES
help
- Use optimized AES assembler routines for ARM platforms.
+ Block ciphers: AES cipher algorithms (FIPS-197)
+
+ Architecture: arm
On ARM processors without the Crypto Extensions, this is the
fastest AES implementation for single blocks. For multiple
@@ -160,7 +162,7 @@ config CRYPTO_AES_ARM
such attacks very difficult.
config CRYPTO_AES_ARM_BS
- tristate "Bit sliced AES using NEON instructions"
+ tristate "Ciphers: AES, modes: ECB/CBC/CTR/XTS (bit-sliced NEON)"
depends on KERNEL_MODE_NEON
select CRYPTO_SKCIPHER
select CRYPTO_LIB_AES
@@ -168,8 +170,13 @@ config CRYPTO_AES_ARM_BS
select CRYPTO_CBC
select CRYPTO_SIMD
help
- Use a faster and more secure NEON based implementation of AES in CBC,
- CTR and XTS modes
+ Length-preserving ciphers: AES cipher algorithms (FIPS-197)
+ with block cipher modes:
+ - ECB (Electronic Codebook) mode (NIST SP800-38A)
+ - CBC (Cipher Block Chaining) mode (NIST SP800-38A)
+ - CTR (Counter) mode (NIST SP800-38A)
+ - XTS (XOR Encrypt XOR with ciphertext stealing) mode (NIST SP800-38E
+ and IEEE 1619)
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
@@ -178,19 +185,34 @@ config CRYPTO_AES_ARM_BS
believed to be invulnerable to cache timing attacks.
config CRYPTO_AES_ARM_CE
- tristate "Accelerated AES using ARMv8 Crypto Extensions"
+ tristate "Ciphers: AES, modes: ECB/CBC/CTS/CTR/XTS (ARMv8 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_SKCIPHER
select CRYPTO_LIB_AES
select CRYPTO_SIMD
help
- Use an implementation of AES in CBC, CTR and XTS modes that uses
- ARMv8 Crypto Extensions
+ Length-preserving ciphers: AES cipher algorithms (FIPS-197)
+ with block cipher modes:
+ - ECB (Electronic Codebook) mode (NIST SP800-38A)
+ - CBC (Cipher Block Chaining) mode (NIST SP800-38A)
+ - CTR (Counter) mode (NIST SP800-38A)
+ - CTS (Cipher Text Stealing) mode (NIST SP800-38A)
+ - XTS (XOR Encrypt XOR with ciphertext stealing) mode (NIST SP800-38E
+ and IEEE 1619)
+
+ Architecture: arm using:
+ - ARMv8 Crypto Extensions
config CRYPTO_CHACHA20_NEON
- tristate "NEON and scalar accelerated ChaCha stream cipher algorithms"
+ tristate "Ciphers: ChaCha20, XChaCha20, XChaCha12 (NEON)"
select CRYPTO_SKCIPHER
select CRYPTO_ARCH_HAVE_LIB_CHACHA
+ help
+ Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
+ stream cipher algorithms
+
+ Architecture: arm using:
+ - NEON (Advanced SIMD) extensions
config CRYPTO_CRC32_ARM_CE
tristate "CRC32C and CRC32"