1# SPDX-License-Identifier: GPL-2.0 2 3menu "Accelerated Cryptographic Algorithms for CPU (powerpc)" 4 5config CRYPTO_CRC32C_VPMSUM 6 tristate "CRC32c" 7 depends on PPC64 && ALTIVEC 8 select CRYPTO_HASH 9 select CRC32 10 help 11 CRC32c CRC algorithm with the iSCSI polynomial (RFC 3385 and RFC 3720) 12 13 Architecture: powerpc64 using 14 - AltiVec extensions 15 16 Enable on POWER8 and newer processors for improved performance. 17 18config CRYPTO_CRCT10DIF_VPMSUM 19 tristate "CRC32T10DIF" 20 depends on PPC64 && ALTIVEC && CRC_T10DIF 21 select CRYPTO_HASH 22 help 23 CRC16 CRC algorithm used for the T10 (SCSI) Data Integrity Field (DIF) 24 25 Architecture: powerpc64 using 26 - AltiVec extensions 27 28 Enable on POWER8 and newer processors for improved performance. 29 30config CRYPTO_VPMSUM_TESTER 31 tristate "CRC32c and CRC32T10DIF hardware acceleration tester" 32 depends on CRYPTO_CRCT10DIF_VPMSUM && CRYPTO_CRC32C_VPMSUM 33 help 34 Stress test for CRC32c and CRCT10DIF algorithms implemented with 35 powerpc64 AltiVec extensions (POWER8 vpmsum instructions). 36 Unless you are testing these algorithms, you don't need this. 37 38config CRYPTO_MD5_PPC 39 tristate "Digests: MD5" 40 depends on PPC 41 select CRYPTO_HASH 42 help 43 MD5 message digest algorithm (RFC1321) 44 45 Architecture: powerpc 46 47config CRYPTO_SHA1_PPC 48 tristate "Hash functions: SHA-1" 49 depends on PPC 50 help 51 SHA-1 secure hash algorithm (FIPS 180) 52 53 Architecture: powerpc 54 55config CRYPTO_SHA1_PPC_SPE 56 tristate "Hash functions: SHA-1 (SPE)" 57 depends on PPC && SPE 58 help 59 SHA-1 secure hash algorithm (FIPS 180) 60 61 Architecture: powerpc using 62 - SPE (Signal Processing Engine) extensions 63 64config CRYPTO_SHA256_PPC_SPE 65 tristate "Hash functions: SHA-224 and SHA-256 (SPE)" 66 depends on PPC && SPE 67 select CRYPTO_SHA256 68 select CRYPTO_HASH 69 help 70 SHA-224 and SHA-256 secure hash algorithms (FIPS 180) 71 72 Architecture: powerpc using 73 - SPE (Signal Processing Engine) extensions 74 75config CRYPTO_AES_PPC_SPE 76 tristate "AES cipher algorithms (PPC SPE)" 77 depends on PPC && SPE 78 select CRYPTO_SKCIPHER 79 help 80 AES cipher algorithms (FIPS-197). Additionally the acceleration 81 for popular block cipher modes ECB, CBC, CTR and XTS is supported. 82 This module should only be used for low power (router) devices 83 without hardware AES acceleration (e.g. caam crypto). It reduces the 84 size of the AES tables from 16KB to 8KB + 256 bytes and mitigates 85 timining attacks. Nevertheless it might be not as secure as other 86 architecture specific assembler implementations that work on 1KB 87 tables or 256 bytes S-boxes. 88 89endmenu 90