# 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. 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 endmenu