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| author | Ard Biesheuvel <ardb@kernel.org> | 2021-01-05 17:47:51 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2021-01-14 17:10:27 +1100 |
| commit | 9ec0af8aa6038163e7cd01dea3b8e085712d19fc (patch) | |
| tree | 9bbbb4d034ac55a24526bf04e612bbc9b5899a85 /arch/x86/crypto/serpent-avx2-asm_64.S | |
| parent | 2cc0fedb8124ac7a75d132988f1e11f5de30c61f (diff) | |
| download | linux-9ec0af8aa6038163e7cd01dea3b8e085712d19fc.tar.gz linux-9ec0af8aa6038163e7cd01dea3b8e085712d19fc.tar.bz2 linux-9ec0af8aa6038163e7cd01dea3b8e085712d19fc.zip | |
crypto: x86/serpent- switch to XTS template
Now that the XTS template can wrap accelerated ECB modes, it can be
used to implement Serpent in XTS mode as well, which turns out to
be at least as fast, and sometimes even faster
Acked-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/x86/crypto/serpent-avx2-asm_64.S')
| -rw-r--r-- | arch/x86/crypto/serpent-avx2-asm_64.S | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S index c9648aeae705..a510a949f02f 100644 --- a/arch/x86/crypto/serpent-avx2-asm_64.S +++ b/arch/x86/crypto/serpent-avx2-asm_64.S @@ -20,16 +20,6 @@ .Lbswap128_mask: .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 -.section .rodata.cst16.xts_gf128mul_and_shl1_mask_0, "aM", @progbits, 16 -.align 16 -.Lxts_gf128mul_and_shl1_mask_0: - .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 - -.section .rodata.cst16.xts_gf128mul_and_shl1_mask_1, "aM", @progbits, 16 -.align 16 -.Lxts_gf128mul_and_shl1_mask_1: - .byte 0x0e, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0 - .text #define CTX %rdi @@ -759,55 +749,3 @@ SYM_FUNC_START(serpent_ctr_16way) FRAME_END ret; SYM_FUNC_END(serpent_ctr_16way) - -SYM_FUNC_START(serpent_xts_enc_16way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst (16 blocks) - * %rdx: src (16 blocks) - * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) - */ - FRAME_BEGIN - - vzeroupper; - - load_xts_16way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, - RD2, RK0, RK0x, RK1, RK1x, RK2, RK2x, RK3, RK3x, RNOT, - .Lxts_gf128mul_and_shl1_mask_0, - .Lxts_gf128mul_and_shl1_mask_1); - - call __serpent_enc_blk16; - - store_xts_16way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2); - - vzeroupper; - - FRAME_END - ret; -SYM_FUNC_END(serpent_xts_enc_16way) - -SYM_FUNC_START(serpent_xts_dec_16way) - /* input: - * %rdi: ctx, CTX - * %rsi: dst (16 blocks) - * %rdx: src (16 blocks) - * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) - */ - FRAME_BEGIN - - vzeroupper; - - load_xts_16way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, - RD2, RK0, RK0x, RK1, RK1x, RK2, RK2x, RK3, RK3x, RNOT, - .Lxts_gf128mul_and_shl1_mask_0, - .Lxts_gf128mul_and_shl1_mask_1); - - call __serpent_dec_blk16; - - store_xts_16way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2); - - vzeroupper; - - FRAME_END - ret; -SYM_FUNC_END(serpent_xts_dec_16way) |