6048801070
Patch adds AVX2/x86-64 implementation of Blowfish cipher, requiring 32 parallel blocks for input (256 bytes). Table look-ups are performed using vpgatherdd instruction directly from vector registers and thus should be faster than earlier implementations. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#ifndef ASM_X86_BLOWFISH_H
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#define ASM_X86_BLOWFISH_H
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#include <linux/crypto.h>
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#include <crypto/blowfish.h>
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#define BF_PARALLEL_BLOCKS 4
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/* regular block cipher functions */
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asmlinkage void __blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src,
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bool xor);
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asmlinkage void blowfish_dec_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src);
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/* 4-way parallel cipher functions */
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asmlinkage void __blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst,
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const u8 *src, bool xor);
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asmlinkage void blowfish_dec_blk_4way(struct bf_ctx *ctx, u8 *dst,
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const u8 *src);
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static inline void blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src)
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{
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__blowfish_enc_blk(ctx, dst, src, false);
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}
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static inline void blowfish_enc_blk_xor(struct bf_ctx *ctx, u8 *dst,
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const u8 *src)
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{
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__blowfish_enc_blk(ctx, dst, src, true);
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}
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static inline void blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst,
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const u8 *src)
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{
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__blowfish_enc_blk_4way(ctx, dst, src, false);
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}
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static inline void blowfish_enc_blk_xor_4way(struct bf_ctx *ctx, u8 *dst,
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const u8 *src)
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{
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__blowfish_enc_blk_4way(ctx, dst, src, true);
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}
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#endif
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