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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6574e6c64e
Patch adds x86_64 assembly implementation of Triple DES EDE cipher algorithm. Two assembly implementations are provided. First is regular 'one-block at time' encrypt/decrypt function. Second is 'three-blocks at time' function that gains performance increase on out-of-order CPUs. tcrypt test results: Intel Core i5-4570: des3_ede-asm vs des3_ede-generic: size ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec 16B 1.21x 1.22x 1.27x 1.36x 1.25x 1.25x 64B 1.98x 1.96x 1.23x 2.04x 2.01x 2.00x 256B 2.34x 2.37x 1.21x 2.40x 2.38x 2.39x 1024B 2.50x 2.47x 1.22x 2.51x 2.52x 2.51x 8192B 2.51x 2.53x 1.21x 2.56x 2.54x 2.55x Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
23 lines
503 B
C
23 lines
503 B
C
/*
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* DES & Triple DES EDE Cipher Algorithms.
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*/
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#ifndef __CRYPTO_DES_H
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#define __CRYPTO_DES_H
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#define DES_KEY_SIZE 8
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#define DES_EXPKEY_WORDS 32
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#define DES_BLOCK_SIZE 8
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#define DES3_EDE_KEY_SIZE (3 * DES_KEY_SIZE)
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#define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
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#define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
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extern unsigned long des_ekey(u32 *pe, const u8 *k);
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extern int __des3_ede_setkey(u32 *expkey, u32 *flags, const u8 *key,
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unsigned int keylen);
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#endif /* __CRYPTO_DES_H */
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