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- # SPDX-License-Identifier: GPL-2.0
- menu "Accelerated Cryptographic Algorithms for CPU (powerpc)"
- 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.
- endmenu
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