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linux/arch/arm64/crypto
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Ard Biesheuvel dfc6031ec9 crypto: arm64/aes-neonbs-xts - use plain NEON for non-power-of-2 input sizes 
Even though the kernel's implementations of AES-XTS were updated to
implement ciphertext stealing and can operate on inputs of any size
larger than or equal to the AES block size, this feature is rarely used
in practice.

In fact, in the kernel, AES-XTS is only used to operate on 4096 or 512
byte blocks, which means that not only the ciphertext stealing is
effectively dead code, the logic in the bit sliced NEON implementation
to deal with fewer than 8 blocks at a time is also never used.

Since the bit-sliced NEON driver already depends on the plain NEON
version, which is slower but can operate on smaller data quantities more
straightforwardly, let's fallback to the plain NEON implementation of
XTS for any residual inputs that are not multiples of 128 bytes. This
allows us to remove a lot of complicated logic that rarely gets
exercised in practice.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-02-05 15:10:51 +11:00
..
.gitignore SPDX patches for 5.7-rc1. 2020-04-03 13:12:26 -07:00
aes-ce-ccm-core.S crypto: arm64/aes-ccm - avoid by-ref argument for ce_aes_ccm_auth_data 2021-09-17 11:05:11 +08:00
aes-ce-ccm-glue.c crypto: arm64/aes-ccm - avoid by-ref argument for ce_aes_ccm_auth_data 2021-09-17 11:05:11 +08:00
aes-ce-core.S crypto: arm64 - Use modern annotations for assembly functions 2019-12-20 14:58:35 +08:00
aes-ce-glue.c crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
aes-ce-setkey.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
aes-ce.S arm64: crypto: Modernize names for AES function macros 2020-03-09 17:35:04 +00:00
aes-cipher-core.S crypto: arm64 - Use modern annotations for assembly functions 2019-12-20 14:58:35 +08:00
aes-cipher-glue.c crypto: arm64/aes-ce-cipher - use AES library as fallback 2019-07-26 14:58:09 +10:00
aes-glue.c crypto: arm64/aes-neonbs-ctr - fallback to plain NEON for final chunk 2022-02-05 15:10:51 +11:00
aes-modes.S crypto: arm64/aes-neon-ctr - improve handling of single tail block 2022-02-05 15:10:51 +11:00
aes-neon.S arm64: crypto: Modernize names for AES function macros 2020-03-09 17:35:04 +00:00
aes-neonbs-core.S crypto: arm64/aes-neonbs-xts - use plain NEON for non-power-of-2 input sizes 2022-02-05 15:10:51 +11:00
aes-neonbs-glue.c crypto: arm64/aes-neonbs-xts - use plain NEON for non-power-of-2 input sizes 2022-02-05 15:10:51 +11:00
chacha-neon-core.S crypto: arm64/chacha - simplify tail block handling 2020-11-13 20:38:55 +11:00
chacha-neon-glue.c crypto: arch/lib - limit simd usage to 4k chunks 2020-04-30 15:16:59 +10:00
crct10dif-ce-core.S crypto: arm64/crc-t10dif - move NEON yield to C code 2021-02-10 17:55:58 +11:00
crct10dif-ce-glue.c crypto: arm64/crc-t10dif - move NEON yield to C code 2021-02-10 17:55:58 +11:00
ghash-ce-core.S crypto: arm64/gcm - move authentication tag check to SIMD domain 2020-11-20 14:45:32 +11:00
ghash-ce-glue.c crypto: arm64/gcm-aes-ce - remove non-SIMD fallback path 2021-09-17 11:05:10 +08:00
Kconfig crypto: arm64/sm3-ce - make dependent on sm3 library 2022-01-28 16:51:10 +11:00
Makefile crypto: arm64 - use a pattern rule for generating *.S files 2021-05-14 19:07:54 +08:00
nh-neon-core.S crypto: arm64 - Use modern annotations for assembly functions 2019-12-20 14:58:35 +08:00
nhpoly1305-neon-glue.c crypto: arch/nhpoly1305 - process in explicit 4k chunks 2020-04-30 15:16:59 +10:00
poly1305-armv8.pl crypto: arm64/poly1305-neon - reorder PAC authentication with SP update 2020-11-06 14:29:11 +11:00
poly1305-glue.c crypto: poly1305 - fix poly1305_core_setkey() declaration 2021-04-02 18:28:12 +11:00
sha1-ce-core.S arm64: fpsimd: run kernel mode NEON with softirqs disabled 2021-04-12 11:55:34 +01:00
sha1-ce-glue.c crypto: arm64/sha1-ce - simplify NEON yield 2021-02-10 17:55:57 +11:00
sha2-ce-core.S arm64: fpsimd: run kernel mode NEON with softirqs disabled 2021-04-12 11:55:34 +01:00
sha2-ce-glue.c crypto: arm64/sha2-ce - simplify NEON yield 2021-02-10 17:55:57 +11:00
sha3-ce-core.S arm64: fpsimd: run kernel mode NEON with softirqs disabled 2021-04-12 11:55:34 +01:00
sha3-ce-glue.c crypto: arm64/sha3-ce - simplify NEON yield 2021-02-10 17:55:58 +11:00
sha256-glue.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
sha512-armv8.pl crypto: clarify licensing of OpenSSL asm code 2018-05-31 00:13:44 +08:00
sha512-ce-core.S arm64: fpsimd: run kernel mode NEON with softirqs disabled 2021-04-12 11:55:34 +01:00
sha512-ce-glue.c crypto: arm64/sha512-ce - simplify NEON yield 2021-02-10 17:55:58 +11:00
sha512-glue.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
sm3-ce-core.S crypto: arm64 - Use modern annotations for assembly functions 2019-12-20 14:58:35 +08:00
sm3-ce-glue.c crypto: arm64/sm3-ce - make dependent on sm3 library 2022-01-28 16:51:10 +11:00
sm4-ce-core.S crypto: arm64 - Use modern annotations for assembly functions 2019-12-20 14:58:35 +08:00
sm4-ce-glue.c crypto: arm64/sm4-ce - Make dependent on sm4 library instead of sm4-generic 2021-07-30 10:58:30 +08:00