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* cipher/cipher.c (_gcry_cipher_open_internal): Setup OCB bulk
functions for Serpent.
* cipher/serpent-armv7-neon.S: Add OCB assembly functions.
* cipher/serpent-avx2-amd64.S: Add OCB assembly functions.
* cipher/serpent-sse2-amd64.S: Add OCB assembly functions.
* cipher/serpent.c (_gcry_serpent_sse2_ocb_enc)
(_gcry_serpent_sse2_ocb_dec, _gcry_serpent_sse2_ocb_auth)
(_gcry_serpent_neon_ocb_enc, _gcry_serpent_neon_ocb_dec)
(_gcry_serpent_neon_ocb_auth, _gcry_serpent_avx2_ocb_enc)
(_gcry_serpent_avx2_ocb_dec, _gcry_serpent_avx2_ocb_auth): New
prototypes.
(get_l, _gcry_serpent_ocb_crypt, _gcry_serpent_ocb_auth): New.
* src/cipher.h (_gcry_serpent_ocb_crypt)
(_gcry_serpent_ocb_auth): New.
* tests/basic.c (check_ocb_cipher): Add test-vector for serpent.
--
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
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cipher/blowfish-amd64.S: Change utf-8 encoded copyright character to
'(C)'.
cipher/blowfish-arm.S: Ditto.
cipher/bufhelp.h: Ditto.
cipher/camellia-aesni-avx-amd64.S: Ditto.
cipher/camellia-aesni-avx2-amd64.S: Ditto.
cipher/camellia-arm.S: Ditto.
cipher/cast5-amd64.S: Ditto.
cipher/cast5-arm.S: Ditto.
cipher/cipher-ccm.c: Ditto.
cipher/cipher-cmac.c: Ditto.
cipher/cipher-gcm.c: Ditto.
cipher/cipher-selftest.c: Ditto.
cipher/cipher-selftest.h: Ditto.
cipher/mac-cmac.c: Ditto.
cipher/mac-gmac.c: Ditto.
cipher/mac-hmac.c: Ditto.
cipher/mac-internal.h: Ditto.
cipher/mac.c: Ditto.
cipher/rijndael-amd64.S: Ditto.
cipher/rijndael-arm.S: Ditto.
cipher/salsa20-amd64.S: Ditto.
cipher/salsa20-armv7-neon.S: Ditto.
cipher/serpent-armv7-neon.S: Ditto.
cipher/serpent-avx2-amd64.S: Ditto.
cipher/serpent-sse2-amd64.S: Ditto.
--
Avoid use of '©' for easier parsing of source for copyright information.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
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* cipher/Makefile.am: Add 'serpent-armv7-neon.S'.
* cipher/serpent-armv7-neon.S: New.
* cipher/serpent.c (USE_NEON): New macro.
(serpent_context_t) [USE_NEON]: Add 'use_neon'.
[USE_NEON] (_gcry_serpent_neon_ctr_enc, _gcry_serpent_neon_cfb_dec)
(_gcry_serpent_neon_cbc_dec): New prototypes.
(serpent_setkey_internal) [USE_NEON]: Detect NEON support.
(_gcry_serpent_neon_ctr_enc, _gcry_serpent_neon_cfb_dec)
(_gcry_serpent_neon_cbc_dec) [USE_NEON]: Use NEON implementations
to process eight blocks in parallel.
* configure.ac [neonsupport]: Add 'serpent-armv7-neon.lo'.
--
Patch adds ARM NEON optimized implementation of Serpent cipher
to speed up parallelizable bulk operations.
Benchmarks on ARM Cortex-A8 (armhf, 1008 Mhz):
Old:
SERPENT128 | nanosecs/byte mebibytes/sec cycles/byte
CBC dec | 43.53 ns/B 21.91 MiB/s 43.88 c/B
CFB dec | 44.77 ns/B 21.30 MiB/s 45.13 c/B
CTR enc | 45.21 ns/B 21.10 MiB/s 45.57 c/B
CTR dec | 45.21 ns/B 21.09 MiB/s 45.57 c/B
New:
SERPENT128 | nanosecs/byte mebibytes/sec cycles/byte
CBC dec | 26.26 ns/B 36.32 MiB/s 26.47 c/B
CFB dec | 26.21 ns/B 36.38 MiB/s 26.42 c/B
CTR enc | 26.20 ns/B 36.40 MiB/s 26.41 c/B
CTR dec | 26.20 ns/B 36.40 MiB/s 26.41 c/B
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
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