# SPDX-License-Identifier: GPL-2.0
menu "Accelerated Cryptographic Algorithms for CPU (powerpc)"
config CRYPTO_CURVE25519_PPC64
tristate "Public key crypto: Curve25519 (PowerPC64)"
depends on PPC64 && CPU_LITTLE_ENDIAN
select CRYPTO_LIB_CURVE25519_GENERIC
select CRYPTO_ARCH_HAVE_LIB_CURVE25519
help
Curve25519 algorithm
Architecture: PowerPC64
- Little-endian
config CRYPTO_CRC32C_VPMSUM
tristate "CRC32c"
depends on PPC64 && ALTIVEC
select CRYPTO_HASH
select CRC32
help
CRC32c CRC algorithm with the iSCSI polynomial (RFC 3385 and RFC 3720)
Architecture: powerpc64 using
- AltiVec extensions
Enable on POWER8 and newer processors for improved performance.
config CRYPTO_CRCT10DIF_VPMSUM
tristate "CRC32T10DIF"
depends on PPC64 && ALTIVEC && CRC_T10DIF
select CRYPTO_HASH
help
CRC16 CRC algorithm used for the T10 (SCSI) Data Integrity Field (DIF)
Architecture: powerpc64 using
- AltiVec extensions
Enable on POWER8 and newer processors for improved performance.
config CRYPTO_VPMSUM_TESTER
tristate "CRC32c and CRC32T10DIF hardware acceleration tester"
depends on CRYPTO_CRCT10DIF_VPMSUM && CRYPTO_CRC32C_VPMSUM
help
Stress test for CRC32c and CRCT10DIF algorithms implemented with
powerpc64 AltiVec extensions (POWER8 vpmsum instructions).
Unless you are testing these algorithms, you don't need this.
config CRYPTO_MD5_PPC
tristate "Digests: MD5"
depends on PPC
select CRYPTO_HASH
help
MD5 message digest algorithm (RFC1321)
Architecture: powerpc
config CRYPTO_SHA1_PPC
tristate "Hash functions: SHA-1"
depends on PPC
help
SHA-1 secure hash algorithm (FIPS 180)
Architecture: powerpc
config CRYPTO_SHA1_PPC_SPE
tristate "Hash functions: SHA-1 (SPE)"
depends on PPC && SPE
help
SHA-1 secure hash algorithm (FIPS 180)
Architecture: powerpc using
- SPE (Signal Processing Engine) extensions
config CRYPTO_SHA256_PPC_SPE
tristate "Hash functions: SHA-224 and SHA-256 (SPE)"
depends on PPC && SPE
select CRYPTO_SHA256
select CRYPTO_HASH
help
SHA-224 and SHA-256 secure hash algorithms (FIPS 180)
Architecture: powerpc using
- SPE (Signal Processing Engine) extensions
config CRYPTO_AES_PPC_SPE
tristate "Ciphers: AES, modes: ECB/CBC/CTR/XTS (SPE)"
depends on PPC && SPE
select CRYPTO_SKCIPHER
help
Block ciphers: AES cipher algorithms (FIPS-197)
Length-preserving ciphers: AES with ECB, CBC, CTR, and XTS modes
Architecture: powerpc using:
- SPE (Signal Processing Engine) extensions
SPE is available for:
- Processor Type: Freescale 8500
- CPU selection: e500 (8540)
This module should only be used for low power (router) devices
without hardware AES acceleration (e.g. caam crypto). It reduces the
size of the AES tables from 16KB to 8KB + 256 bytes and mitigates
timining attacks. Nevertheless it might be not as secure as other
architecture specific assembler implementations that work on 1KB
tables or 256 bytes S-boxes.
config CRYPTO_AES_GCM_P10
tristate "Stitched AES/GCM acceleration support on P10 or later CPU (PPC)"
depends on PPC64 && CPU_LITTLE_ENDIAN && VSX
select CRYPTO_LIB_AES
select CRYPTO_ALGAPI
select CRYPTO_AEAD
select CRYPTO_SKCIPHER
help
AEAD cipher: AES cipher algorithms (FIPS-197)
GCM (Galois/Counter Mode) authenticated encryption mode (NIST SP800-38D)
Architecture: powerpc64 using:
- little-endian
- Power10 or later features
Support for cryptographic acceleration instructions on Power10 or
later CPU. This module supports stitched acceleration for AES/GCM.
config CRYPTO_CHACHA20_P10
tristate "Ciphers: ChaCha20, XChacha20, XChacha12 (P10 or later)"
depends on PPC64 && CPU_LITTLE_ENDIAN && VSX
select CRYPTO_SKCIPHER
select CRYPTO_LIB_CHACHA_GENERIC
select CRYPTO_ARCH_HAVE_LIB_CHACHA
help
Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
stream cipher algorithms
Architecture: PowerPC64
- Power10 or later
- Little-endian
config CRYPTO_POLY1305_P10
tristate "Hash functions: Poly1305 (P10 or later)"
depends on PPC64 && CPU_LITTLE_ENDIAN && VSX
select CRYPTO_HASH
select CRYPTO_LIB_POLY1305_GENERIC
help
Poly1305 authenticator algorithm (RFC7539)
Architecture: PowerPC64
- Power10 or later
- Little-endian
config CRYPTO_DEV_VMX
bool "Support for VMX cryptographic acceleration instructions"
depends on PPC64 && VSX
help
Support for VMX cryptographic acceleration instructions.
config CRYPTO_DEV_VMX_ENCRYPT
tristate "Encryption acceleration support on P8 CPU"
depends on CRYPTO_DEV_VMX
select CRYPTO_AES
select CRYPTO_CBC
select CRYPTO_CTR
select CRYPTO_GHASH
select CRYPTO_XTS
default m
help
Support for VMX cryptographic acceleration instructions on Power8 CPU.
This module supports acceleration for AES and GHASH in hardware. If you
choose 'M' here, this module will be called vmx-crypto.
endmenu
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