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Ard Biesheuvel652ccae2015-03-10 09:47:44 +01001
2menuconfig ARM_CRYPTO
3 bool "ARM Accelerated Cryptographic Algorithms"
4 depends on ARM
5 help
6 Say Y here to choose from a selection of cryptographic algorithms
7 implemented using ARM specific CPU features or instructions.
8
9if ARM_CRYPTO
10
11config CRYPTO_SHA1_ARM
12 tristate "SHA1 digest algorithm (ARM-asm)"
13 select CRYPTO_SHA1
14 select CRYPTO_HASH
15 help
16 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
17 using optimized ARM assembler.
18
19config CRYPTO_SHA1_ARM_NEON
20 tristate "SHA1 digest algorithm (ARM NEON)"
21 depends on KERNEL_MODE_NEON
22 select CRYPTO_SHA1_ARM
23 select CRYPTO_SHA1
24 select CRYPTO_HASH
25 help
26 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
27 using optimized ARM NEON assembly, when NEON instructions are
28 available.
29
Ard Biesheuvel864cbee2015-03-10 09:47:45 +010030config CRYPTO_SHA1_ARM_CE
31 tristate "SHA1 digest algorithm (ARM v8 Crypto Extensions)"
32 depends on KERNEL_MODE_NEON
33 select CRYPTO_SHA1_ARM
34 select CRYPTO_SHA1
35 select CRYPTO_HASH
36 help
37 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
38 using special ARMv8 Crypto Extensions.
39
Ard Biesheuvel006d0622015-03-10 09:47:46 +010040config CRYPTO_SHA2_ARM_CE
41 tristate "SHA-224/256 digest algorithm (ARM v8 Crypto Extensions)"
42 depends on KERNEL_MODE_NEON
43 select CRYPTO_SHA256
44 select CRYPTO_HASH
45 help
46 SHA-256 secure hash standard (DFIPS 180-2) implemented
47 using special ARMv8 Crypto Extensions.
48
Sami Tolvanenf2f770d2015-04-03 18:03:40 +080049config CRYPTO_SHA256_ARM
50 tristate "SHA-224/256 digest algorithm (ARM-asm and NEON)"
51 select CRYPTO_HASH
52 help
53 SHA-256 secure hash standard (DFIPS 180-2) implemented
54 using optimized ARM assembler and NEON, when available.
55
Ard Biesheuvel652ccae2015-03-10 09:47:44 +010056config CRYPTO_SHA512_ARM_NEON
57 tristate "SHA384 and SHA512 digest algorithm (ARM NEON)"
58 depends on KERNEL_MODE_NEON
59 select CRYPTO_SHA512
60 select CRYPTO_HASH
61 help
62 SHA-512 secure hash standard (DFIPS 180-2) implemented
63 using ARM NEON instructions, when available.
64
65 This version of SHA implements a 512 bit hash with 256 bits of
66 security against collision attacks.
67
68 This code also includes SHA-384, a 384 bit hash with 192 bits
69 of security against collision attacks.
70
71config CRYPTO_AES_ARM
72 tristate "AES cipher algorithms (ARM-asm)"
73 depends on ARM
74 select CRYPTO_ALGAPI
75 select CRYPTO_AES
76 help
77 Use optimized AES assembler routines for ARM platforms.
78
79 AES cipher algorithms (FIPS-197). AES uses the Rijndael
80 algorithm.
81
82 Rijndael appears to be consistently a very good performer in
83 both hardware and software across a wide range of computing
84 environments regardless of its use in feedback or non-feedback
85 modes. Its key setup time is excellent, and its key agility is
86 good. Rijndael's very low memory requirements make it very well
87 suited for restricted-space environments, in which it also
88 demonstrates excellent performance. Rijndael's operations are
89 among the easiest to defend against power and timing attacks.
90
91 The AES specifies three key sizes: 128, 192 and 256 bits
92
93 See <http://csrc.nist.gov/encryption/aes/> for more information.
94
95config CRYPTO_AES_ARM_BS
96 tristate "Bit sliced AES using NEON instructions"
97 depends on KERNEL_MODE_NEON
98 select CRYPTO_ALGAPI
99 select CRYPTO_AES_ARM
100 select CRYPTO_ABLK_HELPER
101 help
102 Use a faster and more secure NEON based implementation of AES in CBC,
103 CTR and XTS modes
104
105 Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
106 and for XTS mode encryption, CBC and XTS mode decryption speedup is
107 around 25%. (CBC encryption speed is not affected by this driver.)
108 This implementation does not rely on any lookup tables so it is
109 believed to be invulnerable to cache timing attacks.
110
Ard Biesheuvel86464852015-03-10 09:47:47 +0100111config CRYPTO_AES_ARM_CE
112 tristate "Accelerated AES using ARMv8 Crypto Extensions"
113 depends on KERNEL_MODE_NEON
114 select CRYPTO_ALGAPI
115 select CRYPTO_ABLK_HELPER
116 help
117 Use an implementation of AES in CBC, CTR and XTS modes that uses
118 ARMv8 Crypto Extensions
119
Ard Biesheuvelf1e866b2015-03-10 09:47:48 +0100120config CRYPTO_GHASH_ARM_CE
121 tristate "PMULL-accelerated GHASH using ARMv8 Crypto Extensions"
122 depends on KERNEL_MODE_NEON
123 select CRYPTO_HASH
124 select CRYPTO_CRYPTD
125 help
126 Use an implementation of GHASH (used by the GCM AEAD chaining mode)
127 that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
128 that is part of the ARMv8 Crypto Extensions
129
Ard Biesheuvel652ccae2015-03-10 09:47:44 +0100130endif