3 bool "ARM Accelerated Cryptographic Algorithms"
6 Say Y here to choose from a selection of cryptographic algorithms
7 implemented using ARM specific CPU features or instructions.
11 config CRYPTO_SHA1_ARM
12 tristate "SHA1 digest algorithm (ARM-asm)"
16 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
17 using optimized ARM assembler.
19 config CRYPTO_SHA1_ARM_NEON
20 tristate "SHA1 digest algorithm (ARM NEON)"
21 depends on KERNEL_MODE_NEON
22 select CRYPTO_SHA1_ARM
26 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
27 using optimized ARM NEON assembly, when NEON instructions are
30 config CRYPTO_SHA1_ARM_CE
31 tristate "SHA1 digest algorithm (ARM v8 Crypto Extensions)"
32 depends on KERNEL_MODE_NEON
33 select CRYPTO_SHA1_ARM
36 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
37 using special ARMv8 Crypto Extensions.
39 config CRYPTO_SHA2_ARM_CE
40 tristate "SHA-224/256 digest algorithm (ARM v8 Crypto Extensions)"
41 depends on KERNEL_MODE_NEON
42 select CRYPTO_SHA256_ARM
45 SHA-256 secure hash standard (DFIPS 180-2) implemented
46 using special ARMv8 Crypto Extensions.
48 config CRYPTO_SHA256_ARM
49 tristate "SHA-224/256 digest algorithm (ARM-asm and NEON)"
53 SHA-256 secure hash standard (DFIPS 180-2) implemented
54 using optimized ARM assembler and NEON, when available.
56 config CRYPTO_SHA512_ARM
57 tristate "SHA-384/512 digest algorithm (ARM-asm and NEON)"
61 SHA-512 secure hash standard (DFIPS 180-2) implemented
62 using optimized ARM assembler and NEON, when available.
65 tristate "AES cipher algorithms (ARM-asm)"
70 Use optimized AES assembler routines for ARM platforms.
72 AES cipher algorithms (FIPS-197). AES uses the Rijndael
75 Rijndael appears to be consistently a very good performer in
76 both hardware and software across a wide range of computing
77 environments regardless of its use in feedback or non-feedback
78 modes. Its key setup time is excellent, and its key agility is
79 good. Rijndael's very low memory requirements make it very well
80 suited for restricted-space environments, in which it also
81 demonstrates excellent performance. Rijndael's operations are
82 among the easiest to defend against power and timing attacks.
84 The AES specifies three key sizes: 128, 192 and 256 bits
86 See <http://csrc.nist.gov/encryption/aes/> for more information.
88 config CRYPTO_AES_ARM_BS
89 tristate "Bit sliced AES using NEON instructions"
90 depends on KERNEL_MODE_NEON
93 select CRYPTO_ABLK_HELPER
95 Use a faster and more secure NEON based implementation of AES in CBC,
98 Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
99 and for XTS mode encryption, CBC and XTS mode decryption speedup is
100 around 25%. (CBC encryption speed is not affected by this driver.)
101 This implementation does not rely on any lookup tables so it is
102 believed to be invulnerable to cache timing attacks.
104 config CRYPTO_AES_ARM_CE
105 tristate "Accelerated AES using ARMv8 Crypto Extensions"
106 depends on KERNEL_MODE_NEON
108 select CRYPTO_ABLK_HELPER
110 Use an implementation of AES in CBC, CTR and XTS modes that uses
111 ARMv8 Crypto Extensions
113 config CRYPTO_GHASH_ARM_CE
114 tristate "PMULL-accelerated GHASH using ARMv8 Crypto Extensions"
115 depends on KERNEL_MODE_NEON
119 Use an implementation of GHASH (used by the GCM AEAD chaining mode)
120 that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
121 that is part of the ARMv8 Crypto Extensions