tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 "Ciphers: AES, modes: ECB/CBC/CTR/XTS (SPE)"
77 depends on PPC && SPE
78 select CRYPTO_SKCIPHER
79 help
80 Block ciphers: AES cipher algorithms (FIPS-197)
81 Length-preserving ciphers: AES with ECB, CBC, CTR, and XTS modes
82
83 Architecture: powerpc using:
84 - SPE (Signal Processing Engine) extensions
85
86 SPE is available for:
87 - Processor Type: Freescale 8500
88 - CPU selection: e500 (8540)
89
90 This module should only be used for low power (router) devices
91 without hardware AES acceleration (e.g. caam crypto). It reduces the
92 size of the AES tables from 16KB to 8KB + 256 bytes and mitigates
93 timining attacks. Nevertheless it might be not as secure as other
94 architecture specific assembler implementations that work on 1KB
95 tables or 256 bytes S-boxes.
96
97config CRYPTO_AES_GCM_P10
98 tristate "Stitched AES/GCM acceleration support on P10 or later CPU (PPC)"
99 depends on PPC64 && CPU_LITTLE_ENDIAN && VSX
100 select CRYPTO_LIB_AES
101 select CRYPTO_ALGAPI
102 select CRYPTO_AEAD
103 select CRYPTO_SKCIPHER
104 help
105 AEAD cipher: AES cipher algorithms (FIPS-197)
106 GCM (Galois/Counter Mode) authenticated encryption mode (NIST SP800-38D)
107 Architecture: powerpc64 using:
108 - little-endian
109 - Power10 or later features
110
111 Support for cryptographic acceleration instructions on Power10 or
112 later CPU. This module supports stitched acceleration for AES/GCM.
113
114config CRYPTO_CHACHA20_P10
115 tristate "Ciphers: ChaCha20, XChacha20, XChacha12 (P10 or later)"
116 depends on PPC64 && CPU_LITTLE_ENDIAN && VSX
117 select CRYPTO_SKCIPHER
118 select CRYPTO_LIB_CHACHA_GENERIC
119 select CRYPTO_ARCH_HAVE_LIB_CHACHA
120 help
121 Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
122 stream cipher algorithms
123
124 Architecture: PowerPC64
125 - Power10 or later
126 - Little-endian
127
128config CRYPTO_POLY1305_P10
129 tristate "Hash functions: Poly1305 (P10 or later)"
130 depends on PPC64 && CPU_LITTLE_ENDIAN && VSX
131 select CRYPTO_HASH
132 select CRYPTO_LIB_POLY1305_GENERIC
133 help
134 Poly1305 authenticator algorithm (RFC7539)
135
136 Architecture: PowerPC64
137 - Power10 or later
138 - Little-endian
139
140endmenu