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-rw-r--r--arch/x86/crypto/Makefile4
-rw-r--r--arch/x86/crypto/blowfish-avx2-asm_64.S449
-rw-r--r--arch/x86/crypto/blowfish_avx2_glue.c585
-rw-r--r--arch/x86/crypto/blowfish_glue.c32
-rw-r--r--arch/x86/include/asm/crypto/blowfish.h43
-rw-r--r--crypto/Kconfig18
-rw-r--r--crypto/testmgr.c12
7 files changed, 24 insertions, 1119 deletions
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 94cb151..9ce3418 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -3,8 +3,6 @@
#
avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no)
-avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
- $(comma)4)$(comma)%ymm2,yes,no)
obj-$(CONFIG_CRYPTO_ABLK_HELPER_X86) += ablk_helper.o
obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o
@@ -43,7 +41,6 @@ endif
# These modules require assembler to support AVX2.
ifeq ($(avx2_supported),yes)
- obj-$(CONFIG_CRYPTO_BLOWFISH_AVX2_X86_64) += blowfish-avx2.o
obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o
obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o
obj-$(CONFIG_CRYPTO_TWOFISH_AVX2_X86_64) += twofish-avx2.o
@@ -74,7 +71,6 @@ ifeq ($(avx_supported),yes)
endif
ifeq ($(avx2_supported),yes)
- blowfish-avx2-y := blowfish-avx2-asm_64.o blowfish_avx2_glue.o
camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o
serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o
twofish-avx2-y := twofish-avx2-asm_64.o twofish_avx2_glue.o
diff --git a/arch/x86/crypto/blowfish-avx2-asm_64.S b/arch/x86/crypto/blowfish-avx2-asm_64.S
deleted file mode 100644
index 784452e..0000000
--- a/arch/x86/crypto/blowfish-avx2-asm_64.S
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * x86_64/AVX2 assembler optimized version of Blowfish
- *
- * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-
-#include <linux/linkage.h>
-
-.file "blowfish-avx2-asm_64.S"
-
-.data
-.align 32
-
-.Lprefetch_mask:
-.long 0*64
-.long 1*64
-.long 2*64
-.long 3*64
-.long 4*64
-.long 5*64
-.long 6*64
-.long 7*64
-
-.Lbswap32_mask:
-.long 0x00010203
-.long 0x04050607
-.long 0x08090a0b
-.long 0x0c0d0e0f
-
-.Lbswap128_mask:
- .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
-.Lbswap_iv_mask:
- .byte 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0
-
-.text
-/* structure of crypto context */
-#define p 0
-#define s0 ((16 + 2) * 4)
-#define s1 ((16 + 2 + (1 * 256)) * 4)
-#define s2 ((16 + 2 + (2 * 256)) * 4)
-#define s3 ((16 + 2 + (3 * 256)) * 4)
-
-/* register macros */
-#define CTX %rdi
-#define RIO %rdx
-
-#define RS0 %rax
-#define RS1 %r8
-#define RS2 %r9
-#define RS3 %r10
-
-#define RLOOP %r11
-#define RLOOPd %r11d
-
-#define RXr0 %ymm8
-#define RXr1 %ymm9
-#define RXr2 %ymm10
-#define RXr3 %ymm11
-#define RXl0 %ymm12
-#define RXl1 %ymm13
-#define RXl2 %ymm14
-#define RXl3 %ymm15
-
-/* temp regs */
-#define RT0 %ymm0
-#define RT0x %xmm0
-#define RT1 %ymm1
-#define RT1x %xmm1
-#define RIDX0 %ymm2
-#define RIDX1 %ymm3
-#define RIDX1x %xmm3
-#define RIDX2 %ymm4
-#define RIDX3 %ymm5
-
-/* vpgatherdd mask and '-1' */
-#define RNOT %ymm6
-
-/* byte mask, (-1 >> 24) */
-#define RBYTE %ymm7
-
-/***********************************************************************
- * 32-way AVX2 blowfish
- ***********************************************************************/
-#define F(xl, xr) \
- vpsrld $24, xl, RIDX0; \
- vpsrld $16, xl, RIDX1; \
- vpsrld $8, xl, RIDX2; \
- vpand RBYTE, RIDX1, RIDX1; \
- vpand RBYTE, RIDX2, RIDX2; \
- vpand RBYTE, xl, RIDX3; \
- \
- vpgatherdd RNOT, (RS0, RIDX0, 4), RT0; \
- vpcmpeqd RNOT, RNOT, RNOT; \
- vpcmpeqd RIDX0, RIDX0, RIDX0; \
- \
- vpgatherdd RNOT, (RS1, RIDX1, 4), RT1; \
- vpcmpeqd RIDX1, RIDX1, RIDX1; \
- vpaddd RT0, RT1, RT0; \
- \
- vpgatherdd RIDX0, (RS2, RIDX2, 4), RT1; \
- vpxor RT0, RT1, RT0; \
- \
- vpgatherdd RIDX1, (RS3, RIDX3, 4), RT1; \
- vpcmpeqd RNOT, RNOT, RNOT; \
- vpaddd RT0, RT1, RT0; \
- \
- vpxor RT0, xr, xr;
-
-#define add_roundkey(xl, nmem) \
- vpbroadcastd nmem, RT0; \
- vpxor RT0, xl ## 0, xl ## 0; \
- vpxor RT0, xl ## 1, xl ## 1; \
- vpxor RT0, xl ## 2, xl ## 2; \
- vpxor RT0, xl ## 3, xl ## 3;
-
-#define round_enc() \
- add_roundkey(RXr, p(CTX,RLOOP,4)); \
- F(RXl0, RXr0); \
- F(RXl1, RXr1); \
- F(RXl2, RXr2); \
- F(RXl3, RXr3); \
- \
- add_roundkey(RXl, p+4(CTX,RLOOP,4)); \
- F(RXr0, RXl0); \
- F(RXr1, RXl1); \
- F(RXr2, RXl2); \
- F(RXr3, RXl3);
-
-#define round_dec() \
- add_roundkey(RXr, p+4*2(CTX,RLOOP,4)); \
- F(RXl0, RXr0); \
- F(RXl1, RXr1); \
- F(RXl2, RXr2); \
- F(RXl3, RXr3); \
- \
- add_roundkey(RXl, p+4(CTX,RLOOP,4)); \
- F(RXr0, RXl0); \
- F(RXr1, RXl1); \
- F(RXr2, RXl2); \
- F(RXr3, RXl3);
-
-#define init_round_constants() \
- vpcmpeqd RNOT, RNOT, RNOT; \
- leaq s0(CTX), RS0; \
- leaq s1(CTX), RS1; \
- leaq s2(CTX), RS2; \
- leaq s3(CTX), RS3; \
- vpsrld $24, RNOT, RBYTE;
-
-#define transpose_2x2(x0, x1, t0) \
- vpunpckldq x0, x1, t0; \
- vpunpckhdq x0, x1, x1; \
- \
- vpunpcklqdq t0, x1, x0; \
- vpunpckhqdq t0, x1, x1;
-
-#define read_block(xl, xr) \
- vbroadcasti128 .Lbswap32_mask, RT1; \
- \
- vpshufb RT1, xl ## 0, xl ## 0; \
- vpshufb RT1, xr ## 0, xr ## 0; \
- vpshufb RT1, xl ## 1, xl ## 1; \
- vpshufb RT1, xr ## 1, xr ## 1; \
- vpshufb RT1, xl ## 2, xl ## 2; \
- vpshufb RT1, xr ## 2, xr ## 2; \
- vpshufb RT1, xl ## 3, xl ## 3; \
- vpshufb RT1, xr ## 3, xr ## 3; \
- \
- transpose_2x2(xl ## 0, xr ## 0, RT0); \
- transpose_2x2(xl ## 1, xr ## 1, RT0); \
- transpose_2x2(xl ## 2, xr ## 2, RT0); \
- transpose_2x2(xl ## 3, xr ## 3, RT0);
-
-#define write_block(xl, xr) \
- vbroadcasti128 .Lbswap32_mask, RT1; \
- \
- transpose_2x2(xl ## 0, xr ## 0, RT0); \
- transpose_2x2(xl ## 1, xr ## 1, RT0); \
- transpose_2x2(xl ## 2, xr ## 2, RT0); \
- transpose_2x2(xl ## 3, xr ## 3, RT0); \
- \
- vpshufb RT1, xl ## 0, xl ## 0; \
- vpshufb RT1, xr ## 0, xr ## 0; \
- vpshufb RT1, xl ## 1, xl ## 1; \
- vpshufb RT1, xr ## 1, xr ## 1; \
- vpshufb RT1, xl ## 2, xl ## 2; \
- vpshufb RT1, xr ## 2, xr ## 2; \
- vpshufb RT1, xl ## 3, xl ## 3; \
- vpshufb RT1, xr ## 3, xr ## 3;
-
-.align 8
-__blowfish_enc_blk32:
- /* input:
- * %rdi: ctx, CTX
- * RXl0..4, RXr0..4: plaintext
- * output:
- * RXl0..4, RXr0..4: ciphertext (RXl <=> RXr swapped)
- */
- init_round_constants();
-
- read_block(RXl, RXr);
-
- movl $1, RLOOPd;
- add_roundkey(RXl, p+4*(0)(CTX));
-
-.align 4
-.L__enc_loop:
- round_enc();
-
- leal 2(RLOOPd), RLOOPd;
- cmpl $17, RLOOPd;
- jne .L__enc_loop;
-
- add_roundkey(RXr, p+4*(17)(CTX));
-
- write_block(RXl, RXr);
-
- ret;
-ENDPROC(__blowfish_enc_blk32)
-
-.align 8
-__blowfish_dec_blk32:
- /* input:
- * %rdi: ctx, CTX
- * RXl0..4, RXr0..4: ciphertext
- * output:
- * RXl0..4, RXr0..4: plaintext (RXl <=> RXr swapped)
- */
- init_round_constants();
-
- read_block(RXl, RXr);
-
- movl $14, RLOOPd;
- add_roundkey(RXl, p+4*(17)(CTX));
-
-.align 4
-.L__dec_loop:
- round_dec();
-
- addl $-2, RLOOPd;
- jns .L__dec_loop;
-
- add_roundkey(RXr, p+4*(0)(CTX));
-
- write_block(RXl, RXr);
-
- ret;
-ENDPROC(__blowfish_dec_blk32)
-
-ENTRY(blowfish_ecb_enc_32way)
- /* input:
- * %rdi: ctx, CTX
- * %rsi: dst
- * %rdx: src
- */
-
- vzeroupper;
-
- vmovdqu 0*32(%rdx), RXl0;
- vmovdqu 1*32(%rdx), RXr0;
- vmovdqu 2*32(%rdx), RXl1;
- vmovdqu 3*32(%rdx), RXr1;
- vmovdqu 4*32(%rdx), RXl2;
- vmovdqu 5*32(%rdx), RXr2;
- vmovdqu 6*32(%rdx), RXl3;
- vmovdqu 7*32(%rdx), RXr3;
-
- call __blowfish_enc_blk32;
-
- vmovdqu RXr0, 0*32(%rsi);
- vmovdqu RXl0, 1*32(%rsi);
- vmovdqu RXr1, 2*32(%rsi);
- vmovdqu RXl1, 3*32(%rsi);
- vmovdqu RXr2, 4*32(%rsi);
- vmovdqu RXl2, 5*32(%rsi);
- vmovdqu RXr3, 6*32(%rsi);
- vmovdqu RXl3, 7*32(%rsi);
-
- vzeroupper;
-
- ret;
-ENDPROC(blowfish_ecb_enc_32way)
-
-ENTRY(blowfish_ecb_dec_32way)
- /* input:
- * %rdi: ctx, CTX
- * %rsi: dst
- * %rdx: src
- */
-
- vzeroupper;
-
- vmovdqu 0*32(%rdx), RXl0;
- vmovdqu 1*32(%rdx), RXr0;
- vmovdqu 2*32(%rdx), RXl1;
- vmovdqu 3*32(%rdx), RXr1;
- vmovdqu 4*32(%rdx), RXl2;
- vmovdqu 5*32(%rdx), RXr2;
- vmovdqu 6*32(%rdx), RXl3;
- vmovdqu 7*32(%rdx), RXr3;
-
- call __blowfish_dec_blk32;
-
- vmovdqu RXr0, 0*32(%rsi);
- vmovdqu RXl0, 1*32(%rsi);
- vmovdqu RXr1, 2*32(%rsi);
- vmovdqu RXl1, 3*32(%rsi);
- vmovdqu RXr2, 4*32(%rsi);
- vmovdqu RXl2, 5*32(%rsi);
- vmovdqu RXr3, 6*32(%rsi);
- vmovdqu RXl3, 7*32(%rsi);
-
- vzeroupper;
-
- ret;
-ENDPROC(blowfish_ecb_dec_32way)
-
-ENTRY(blowfish_cbc_dec_32way)
- /* input:
- * %rdi: ctx, CTX
- * %rsi: dst
- * %rdx: src
- */
-
- vzeroupper;
-
- vmovdqu 0*32(%rdx), RXl0;
- vmovdqu 1*32(%rdx), RXr0;
- vmovdqu 2*32(%rdx), RXl1;
- vmovdqu 3*32(%rdx), RXr1;
- vmovdqu 4*32(%rdx), RXl2;
- vmovdqu 5*32(%rdx), RXr2;
- vmovdqu 6*32(%rdx), RXl3;
- vmovdqu 7*32(%rdx), RXr3;
-
- call __blowfish_dec_blk32;
-
- /* xor with src */
- vmovq (%rdx), RT0x;
- vpshufd $0x4f, RT0x, RT0x;
- vinserti128 $1, 8(%rdx), RT0, RT0;
- vpxor RT0, RXr0, RXr0;
- vpxor 0*32+24(%rdx), RXl0, RXl0;
- vpxor 1*32+24(%rdx), RXr1, RXr1;
- vpxor 2*32+24(%rdx), RXl1, RXl1;
- vpxor 3*32+24(%rdx), RXr2, RXr2;
- vpxor 4*32+24(%rdx), RXl2, RXl2;
- vpxor 5*32+24(%rdx), RXr3, RXr3;
- vpxor 6*32+24(%rdx), RXl3, RXl3;
-
- vmovdqu RXr0, (0*32)(%rsi);
- vmovdqu RXl0, (1*32)(%rsi);
- vmovdqu RXr1, (2*32)(%rsi);
- vmovdqu RXl1, (3*32)(%rsi);
- vmovdqu RXr2, (4*32)(%rsi);
- vmovdqu RXl2, (5*32)(%rsi);
- vmovdqu RXr3, (6*32)(%rsi);
- vmovdqu RXl3, (7*32)(%rsi);
-
- vzeroupper;
-
- ret;
-ENDPROC(blowfish_cbc_dec_32way)
-
-ENTRY(blowfish_ctr_32way)
- /* input:
- * %rdi: ctx, CTX
- * %rsi: dst
- * %rdx: src
- * %rcx: iv (big endian, 64bit)
- */
-
- vzeroupper;
-
- vpcmpeqd RT0, RT0, RT0;
- vpsrldq $8, RT0, RT0; /* a: -1, b: 0, c: -1, d: 0 */
-
- vpcmpeqd RT1x, RT1x, RT1x;
- vpaddq RT1x, RT1x, RT1x; /* a: -2, b: -2 */
- vpxor RIDX0, RIDX0, RIDX0;
- vinserti128 $1, RT1x, RIDX0, RIDX0; /* a: 0, b: 0, c: -2, d: -2 */
-
- vpaddq RIDX0, RT0, RT0; /* a: -1, b: 0, c: -3, d: -2 */
-
- vpcmpeqd RT1, RT1, RT1;
- vpaddq RT1, RT1, RT1; /* a: -2, b: -2, c: -2, d: -2 */
- vpaddq RT1, RT1, RIDX2; /* a: -4, b: -4, c: -4, d: -4 */
-
- vbroadcasti128 .Lbswap_iv_mask, RIDX0;
- vbroadcasti128 .Lbswap128_mask, RIDX1;
-
- /* load IV and byteswap */
- vmovq (%rcx), RT1x;
- vinserti128 $1, RT1x, RT1, RT1; /* a: BE, b: 0, c: BE, d: 0 */
- vpshufb RIDX0, RT1, RT1; /* a: LE, b: LE, c: LE, d: LE */
-
- /* construct IVs */
- vpsubq RT0, RT1, RT1; /* a: le1, b: le0, c: le3, d: le2 */
- vpshufb RIDX1, RT1, RXl0; /* a: be0, b: be1, c: be2, d: be3 */
- vpsubq RIDX2, RT1, RT1; /* le5, le4, le7, le6 */
- vpshufb RIDX1, RT1, RXr0; /* be4, be5, be6, be7 */
- vpsubq RIDX2, RT1, RT1;
- vpshufb RIDX1, RT1, RXl1;
- vpsubq RIDX2, RT1, RT1;
- vpshufb RIDX1, RT1, RXr1;
- vpsubq RIDX2, RT1, RT1;
- vpshufb RIDX1, RT1, RXl2;
- vpsubq RIDX2, RT1, RT1;
- vpshufb RIDX1, RT1, RXr2;
- vpsubq RIDX2, RT1, RT1;
- vpshufb RIDX1, RT1, RXl3;
- vpsubq RIDX2, RT1, RT1;
- vpshufb RIDX1, RT1, RXr3;
-
- /* store last IV */
- vpsubq RIDX2, RT1, RT1; /* a: le33, b: le32, ... */
- vpshufb RIDX1x, RT1x, RT1x; /* a: be32, ... */
- vmovq RT1x, (%rcx);
-
- call __blowfish_enc_blk32;
-
- /* dst = src ^ iv */
- vpxor 0*32(%rdx), RXr0, RXr0;
- vpxor 1*32(%rdx), RXl0, RXl0;
- vpxor 2*32(%rdx), RXr1, RXr1;
- vpxor 3*32(%rdx), RXl1, RXl1;
- vpxor 4*32(%rdx), RXr2, RXr2;
- vpxor 5*32(%rdx), RXl2, RXl2;
- vpxor 6*32(%rdx), RXr3, RXr3;
- vpxor 7*32(%rdx), RXl3, RXl3;
- vmovdqu RXr0, (0*32)(%rsi);
- vmovdqu RXl0, (1*32)(%rsi);
- vmovdqu RXr1, (2*32)(%rsi);
- vmovdqu RXl1, (3*32)(%rsi);
- vmovdqu RXr2, (4*32)(%rsi);
- vmovdqu RXl2, (5*32)(%rsi);
- vmovdqu RXr3, (6*32)(%rsi);
- vmovdqu RXl3, (7*32)(%rsi);
-
- vzeroupper;
-
- ret;
-ENDPROC(blowfish_ctr_32way)
diff --git a/arch/x86/crypto/blowfish_avx2_glue.c b/arch/x86/crypto/blowfish_avx2_glue.c
deleted file mode 100644
index 4417e9a..0000000
--- a/arch/x86/crypto/blowfish_avx2_glue.c
+++ /dev/null
@@ -1,585 +0,0 @@
-/*
- * Glue Code for x86_64/AVX2 assembler optimized version of Blowfish
- *
- * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
- *
- * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by:
- * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
- * CTR part based on code (crypto/ctr.c) by:
- * (C) Copyright IBM Corp. 2007 - Joy Latten <latten@us.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include <linux/err.h>
-#include <crypto/algapi.h>
-#include <crypto/blowfish.h>
-#include <crypto/cryptd.h>
-#include <crypto/ctr.h>
-#include <asm/i387.h>
-#include <asm/xcr.h>
-#include <asm/xsave.h>
-#include <asm/crypto/blowfish.h>
-#include <asm/crypto/ablk_helper.h>
-#include <crypto/scatterwalk.h>
-
-#define BF_AVX2_PARALLEL_BLOCKS 32
-
-/* 32-way AVX2 parallel cipher functions */
-asmlinkage void blowfish_ecb_enc_32way(struct bf_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void blowfish_ecb_dec_32way(struct bf_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void blowfish_cbc_dec_32way(struct bf_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void blowfish_ctr_32way(struct bf_ctx *ctx, u8 *dst, const u8 *src,
- __be64 *iv);
-
-static inline bool bf_fpu_begin(bool fpu_enabled, unsigned int nbytes)
-{
- if (fpu_enabled)
- return true;
-
- /* FPU is only used when chunk to be processed is large enough, so
- * do not enable FPU until it is necessary.
- */
- if (nbytes < BF_BLOCK_SIZE * BF_AVX2_PARALLEL_BLOCKS)
- return false;
-
- kernel_fpu_begin();
- return true;
-}
-
-static inline void bf_fpu_end(bool fpu_enabled)
-{
- if (fpu_enabled)
- kernel_fpu_end();
-}
-
-static int ecb_crypt(struct blkcipher_desc *desc, struct blkcipher_walk *walk,
- bool enc)
-{
- bool fpu_enabled = false;
- struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- const unsigned int bsize = BF_BLOCK_SIZE;
- unsigned int nbytes;
- int err;
-
- err = blkcipher_walk_virt(desc, walk);
- desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
-
- while ((nbytes = walk->nbytes)) {
- u8 *wsrc = walk->src.virt.addr;
- u8 *wdst = walk->dst.virt.addr;
-
- fpu_enabled = bf_fpu_begin(fpu_enabled, nbytes);
-
- /* Process multi-block AVX2 batch */
- if (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS) {
- do {
- if (enc)
- blowfish_ecb_enc_32way(ctx, wdst, wsrc);
- else
- blowfish_ecb_dec_32way(ctx, wdst, wsrc);
-
- wsrc += bsize * BF_AVX2_PARALLEL_BLOCKS;
- wdst += bsize * BF_AVX2_PARALLEL_BLOCKS;
- nbytes -= bsize * BF_AVX2_PARALLEL_BLOCKS;
- } while (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS);
-
- if (nbytes < bsize)
- goto done;
- }
-
- /* Process multi-block batch */
- if (nbytes >= bsize * BF_PARALLEL_BLOCKS) {
- do {
- if (enc)
- blowfish_enc_blk_4way(ctx, wdst, wsrc);
- else
- blowfish_dec_blk_4way(ctx, wdst, wsrc);
-
- wsrc += bsize * BF_PARALLEL_BLOCKS;
- wdst += bsize * BF_PARALLEL_BLOCKS;
- nbytes -= bsize * BF_PARALLEL_BLOCKS;
- } while (nbytes >= bsize * BF_PARALLEL_BLOCKS);
-
- if (nbytes < bsize)
- goto done;
- }
-
- /* Handle leftovers */
- do {
- if (enc)
- blowfish_enc_blk(ctx, wdst, wsrc);
- else
- blowfish_dec_blk(ctx, wdst, wsrc);
-
- wsrc += bsize;
- wdst += bsize;
- nbytes -= bsize;
- } while (nbytes >= bsize);
-
-done:
- err = blkcipher_walk_done(desc, walk, nbytes);
- }
-
- bf_fpu_end(fpu_enabled);
- return err;
-}
-
-static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- struct blkcipher_walk walk;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_crypt(desc, &walk, true);
-}
-
-static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- struct blkcipher_walk walk;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- return ecb_crypt(desc, &walk, false);
-}
-
-static unsigned int __cbc_encrypt(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk)
-{
- struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- unsigned int bsize = BF_BLOCK_SIZE;
- unsigned int nbytes = walk->nbytes;
- u64 *src = (u64 *)walk->src.virt.addr;
- u64 *dst = (u64 *)walk->dst.virt.addr;
- u64 *iv = (u64 *)walk->iv;
-
- do {
- *dst = *src ^ *iv;
- blowfish_enc_blk(ctx, (u8 *)dst, (u8 *)dst);
- iv = dst;
-
- src += 1;
- dst += 1;
- nbytes -= bsize;
- } while (nbytes >= bsize);
-
- *(u64 *)walk->iv = *iv;
- return nbytes;
-}
-
-static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- struct blkcipher_walk walk;
- int err;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt(desc, &walk);
-
- while ((nbytes = walk.nbytes)) {
- nbytes = __cbc_encrypt(desc, &walk);
- err = blkcipher_walk_done(desc, &walk, nbytes);
- }
-
- return err;
-}
-
-static unsigned int __cbc_decrypt(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk)
-{
- struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- const unsigned int bsize = BF_BLOCK_SIZE;
- unsigned int nbytes = walk->nbytes;
- u64 *src = (u64 *)walk->src.virt.addr;
- u64 *dst = (u64 *)walk->dst.virt.addr;
- u64 last_iv;
- int i;
-
- /* Start of the last block. */
- src += nbytes / bsize - 1;
- dst += nbytes / bsize - 1;
-
- last_iv = *src;
-
- /* Process multi-block AVX2 batch */
- if (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS) {
- do {
- nbytes -= bsize * (BF_AVX2_PARALLEL_BLOCKS - 1);
- src -= BF_AVX2_PARALLEL_BLOCKS - 1;
- dst -= BF_AVX2_PARALLEL_BLOCKS - 1;
-
- blowfish_cbc_dec_32way(ctx, (u8 *)dst, (u8 *)src);
-
- nbytes -= bsize;
- if (nbytes < bsize)
- goto done;
-
- *dst ^= *(src - 1);
- src -= 1;
- dst -= 1;
- } while (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS);
-
- if (nbytes < bsize)
- goto done;
- }
-
- /* Process multi-block batch */
- if (nbytes >= bsize * BF_PARALLEL_BLOCKS) {
- u64 ivs[BF_PARALLEL_BLOCKS - 1];
-
- do {
- nbytes -= bsize * (BF_PARALLEL_BLOCKS - 1);
- src -= BF_PARALLEL_BLOCKS - 1;
- dst -= BF_PARALLEL_BLOCKS - 1;
-
- for (i = 0; i < BF_PARALLEL_BLOCKS - 1; i++)
- ivs[i] = src[i];
-
- blowfish_dec_blk_4way(ctx, (u8 *)dst, (u8 *)src);
-
- for (i = 0; i < BF_PARALLEL_BLOCKS - 1; i++)
- dst[i + 1] ^= ivs[i];
-
- nbytes -= bsize;
- if (nbytes < bsize)
- goto done;
-
- *dst ^= *(src - 1);
- src -= 1;
- dst -= 1;
- } while (nbytes >= bsize * BF_PARALLEL_BLOCKS);
-
- if (nbytes < bsize)
- goto done;
- }
-
- /* Handle leftovers */
- for (;;) {
- blowfish_dec_blk(ctx, (u8 *)dst, (u8 *)src);
-
- nbytes -= bsize;
- if (nbytes < bsize)
- break;
-
- *dst ^= *(src - 1);
- src -= 1;
- dst -= 1;
- }
-
-done:
- *dst ^= *(u64 *)walk->iv;
- *(u64 *)walk->iv = last_iv;
-
- return nbytes;
-}
-
-static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- bool fpu_enabled = false;
- struct blkcipher_walk walk;
- int err;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt(desc, &walk);
- desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
-
- while ((nbytes = walk.nbytes)) {
- fpu_enabled = bf_fpu_begin(fpu_enabled, nbytes);
- nbytes = __cbc_decrypt(desc, &walk);
- err = blkcipher_walk_done(desc, &walk, nbytes);
- }
-
- bf_fpu_end(fpu_enabled);
- return err;
-}
-
-static void ctr_crypt_final(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk)
-{
- struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- u8 *ctrblk = walk->iv;
- u8 keystream[BF_BLOCK_SIZE];
- u8 *src = walk->src.virt.addr;
- u8 *dst = walk->dst.virt.addr;
- unsigned int nbytes = walk->nbytes;
-
- blowfish_enc_blk(ctx, keystream, ctrblk);
- crypto_xor(keystream, src, nbytes);
- memcpy(dst, keystream, nbytes);
-
- crypto_inc(ctrblk, BF_BLOCK_SIZE);
-}
-
-static unsigned int __ctr_crypt(struct blkcipher_desc *desc,
- struct blkcipher_walk *walk)
-{
- struct bf_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
- unsigned int bsize = BF_BLOCK_SIZE;
- unsigned int nbytes = walk->nbytes;
- u64 *src = (u64 *)walk->src.virt.addr;
- u64 *dst = (u64 *)walk->dst.virt.addr;
- int i;
-
- /* Process multi-block AVX2 batch */
- if (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS) {
- do {
- blowfish_ctr_32way(ctx, (u8 *)dst, (u8 *)src,
- (__be64 *)walk->iv);
-
- src += BF_AVX2_PARALLEL_BLOCKS;
- dst += BF_AVX2_PARALLEL_BLOCKS;
- nbytes -= bsize * BF_AVX2_PARALLEL_BLOCKS;
- } while (nbytes >= bsize * BF_AVX2_PARALLEL_BLOCKS);
-
- if (nbytes < bsize)
- goto done;
- }
-
- /* Process four block batch */
- if (nbytes >= bsize * BF_PARALLEL_BLOCKS) {
- __be64 ctrblocks[BF_PARALLEL_BLOCKS];
- u64 ctrblk = be64_to_cpu(*(__be64 *)walk->iv);
-
- do {
- /* create ctrblks for parallel encrypt */
- for (i = 0; i < BF_PARALLEL_BLOCKS; i++) {
- if (dst != src)
- dst[i] = src[i];
-
- ctrblocks[i] = cpu_to_be64(ctrblk++);
- }
-
- blowfish_enc_blk_xor_4way(ctx, (u8 *)dst,
- (u8 *)ctrblocks);
-
- src += BF_PARALLEL_BLOCKS;
- dst += BF_PARALLEL_BLOCKS;
- nbytes -= bsize * BF_PARALLEL_BLOCKS;
- } while (nbytes >= bsize * BF_PARALLEL_BLOCKS);
-
- *(__be64 *)walk->iv = cpu_to_be64(ctrblk);
-
- if (nbytes < bsize)
- goto done;
- }
-
- /* Handle leftovers */
- do {
- u64 ctrblk;
-
- if (dst != src)
- *dst = *src;
-
- ctrblk = *(u64 *)walk->iv;
- be64_add_cpu((__be64 *)walk->iv, 1);
-
- blowfish_enc_blk_xor(ctx, (u8 *)dst, (u8 *)&ctrblk);
-
- src += 1;
- dst += 1;
- } while ((nbytes -= bsize) >= bsize);
-
-done:
- return nbytes;
-}
-
-static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes)
-{
- bool fpu_enabled = false;
- struct blkcipher_walk walk;
- int err;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt_block(desc, &walk, BF_BLOCK_SIZE);
- desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
-
- while ((nbytes = walk.nbytes) >= BF_BLOCK_SIZE) {
- fpu_enabled = bf_fpu_begin(fpu_enabled, nbytes);
- nbytes = __ctr_crypt(desc, &walk);
- err = blkcipher_walk_done(desc, &walk, nbytes);
- }
-
- bf_fpu_end(fpu_enabled);
-
- if (walk.nbytes) {
- ctr_crypt_final(desc, &walk);
- err = blkcipher_walk_done(desc, &walk, 0);
- }
-
- return err;
-}
-
-static struct crypto_alg bf_algs[6] = { {
- .cra_name = "__ecb-blowfish-avx2",
- .cra_driver_name = "__driver-ecb-blowfish-avx2",
- .cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = BF_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct bf_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_u = {
- .blkcipher = {
- .min_keysize = BF_MIN_KEY_SIZE,
- .max_keysize = BF_MAX_KEY_SIZE,
- .setkey = blowfish_setkey,
- .encrypt = ecb_encrypt,
- .decrypt = ecb_decrypt,
- },
- },
-}, {
- .cra_name = "__cbc-blowfish-avx2",
- .cra_driver_name = "__driver-cbc-blowfish-avx2",
- .cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = BF_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct bf_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_u = {
- .blkcipher = {
- .min_keysize = BF_MIN_KEY_SIZE,
- .max_keysize = BF_MAX_KEY_SIZE,
- .setkey = blowfish_setkey,
- .encrypt = cbc_encrypt,
- .decrypt = cbc_decrypt,
- },
- },
-}, {
- .cra_name = "__ctr-blowfish-avx2",
- .cra_driver_name = "__driver-ctr-blowfish-avx2",
- .cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct bf_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_u = {
- .blkcipher = {
- .min_keysize = BF_MIN_KEY_SIZE,
- .max_keysize = BF_MAX_KEY_SIZE,
- .ivsize = BF_BLOCK_SIZE,
- .setkey = blowfish_setkey,
- .encrypt = ctr_crypt,
- .decrypt = ctr_crypt,
- },
- },
-}, {
- .cra_name = "ecb(blowfish)",
- .cra_driver_name = "ecb-blowfish-avx2",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = BF_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_helper_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_init = ablk_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = BF_MIN_KEY_SIZE,
- .max_keysize = BF_MAX_KEY_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_decrypt,
- },
- },
-}, {
- .cra_name = "cbc(blowfish)",
- .cra_driver_name = "cbc-blowfish-avx2",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = BF_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_helper_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_init = ablk_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = BF_MIN_KEY_SIZE,
- .max_keysize = BF_MAX_KEY_SIZE,
- .ivsize = BF_BLOCK_SIZE,
- .setkey = ablk_set_key,
- .encrypt = __ablk_encrypt,
- .decrypt = ablk_decrypt,
- },
- },
-}, {
- .cra_name = "ctr(blowfish)",
- .cra_driver_name = "ctr-blowfish-avx2",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct async_helper_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_init = ablk_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = BF_MIN_KEY_SIZE,
- .max_keysize = BF_MAX_KEY_SIZE,
- .ivsize = BF_BLOCK_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_encrypt,
- .geniv = "chainiv",
- },
- },
-} };
-
-
-static int __init init(void)
-{
- u64 xcr0;
-
- if (!cpu_has_avx2 || !cpu_has_osxsave) {
- pr_info("AVX2 instructions are not detected.\n");
- return -ENODEV;
- }
-
- xcr0 = xgetbv(XCR_XFEATURE_ENABLED_MASK);
- if ((xcr0 & (XSTATE_SSE | XSTATE_YMM)) != (XSTATE_SSE | XSTATE_YMM)) {
- pr_info("AVX detected but unusable.\n");
- return -ENODEV;
- }
-
- return crypto_register_algs(bf_algs, ARRAY_SIZE(bf_algs));
-}
-
-static void __exit fini(void)
-{
- crypto_unregister_algs(bf_algs, ARRAY_SIZE(bf_algs));
-}
-
-module_init(init);
-module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Blowfish Cipher Algorithm, AVX2 optimized");
-MODULE_ALIAS("blowfish");
-MODULE_ALIAS("blowfish-asm");
diff --git a/arch/x86/crypto/blowfish_glue.c b/arch/x86/crypto/blowfish_glue.c
index 3548d76..50ec333 100644
--- a/arch/x86/crypto/blowfish_glue.c
+++ b/arch/x86/crypto/blowfish_glue.c
@@ -1,7 +1,7 @@
/*
* Glue Code for assembler optimized version of Blowfish
*
- * Copyright © 2011-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ * Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
*
* CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by:
* Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
@@ -32,24 +32,40 @@
#include <linux/module.h>
#include <linux/types.h>
#include <crypto/algapi.h>
-#include <asm/crypto/blowfish.h>
/* regular block cipher functions */
asmlinkage void __blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src,
bool xor);
-EXPORT_SYMBOL_GPL(__blowfish_enc_blk);
-
asmlinkage void blowfish_dec_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src);
-EXPORT_SYMBOL_GPL(blowfish_dec_blk);
/* 4-way parallel cipher functions */
asmlinkage void __blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst,
const u8 *src, bool xor);
-EXPORT_SYMBOL_GPL(__blowfish_enc_blk_4way);
-
asmlinkage void blowfish_dec_blk_4way(struct bf_ctx *ctx, u8 *dst,
const u8 *src);
-EXPORT_SYMBOL_GPL(blowfish_dec_blk_4way);
+
+static inline void blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src)
+{
+ __blowfish_enc_blk(ctx, dst, src, false);
+}
+
+static inline void blowfish_enc_blk_xor(struct bf_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ __blowfish_enc_blk(ctx, dst, src, true);
+}
+
+static inline void blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ __blowfish_enc_blk_4way(ctx, dst, src, false);
+}
+
+static inline void blowfish_enc_blk_xor_4way(struct bf_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ __blowfish_enc_blk_4way(ctx, dst, src, true);
+}
static void blowfish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
diff --git a/arch/x86/include/asm/crypto/blowfish.h b/arch/x86/include/asm/crypto/blowfish.h
deleted file mode 100644
index f097b2f..0000000
--- a/arch/x86/include/asm/crypto/blowfish.h
+++ /dev/null
@@ -1,43 +0,0 @@
-#ifndef ASM_X86_BLOWFISH_H
-#define ASM_X86_BLOWFISH_H
-
-#include <linux/crypto.h>
-#include <crypto/blowfish.h>
-
-#define BF_PARALLEL_BLOCKS 4
-
-/* regular block cipher functions */
-asmlinkage void __blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src,
- bool xor);
-asmlinkage void blowfish_dec_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src);
-
-/* 4-way parallel cipher functions */
-asmlinkage void __blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst,
- const u8 *src, bool xor);
-asmlinkage void blowfish_dec_blk_4way(struct bf_ctx *ctx, u8 *dst,
- const u8 *src);
-
-static inline void blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src)
-{
- __blowfish_enc_blk(ctx, dst, src, false);
-}
-
-static inline void blowfish_enc_blk_xor(struct bf_ctx *ctx, u8 *dst,
- const u8 *src)
-{
- __blowfish_enc_blk(ctx, dst, src, true);
-}
-
-static inline void blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst,
- const u8 *src)
-{
- __blowfish_enc_blk_4way(ctx, dst, src, false);
-}
-
-static inline void blowfish_enc_blk_xor_4way(struct bf_ctx *ctx, u8 *dst,
- const u8 *src)
-{
- __blowfish_enc_blk_4way(ctx, dst, src, true);
-}
-
-#endif
diff --git a/crypto/Kconfig b/crypto/Kconfig
index d1ca631..4ef0ee7 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -839,24 +839,6 @@ config CRYPTO_BLOWFISH_X86_64
See also:
<http://www.schneier.com/blowfish.html>
-config CRYPTO_BLOWFISH_AVX2_X86_64
- tristate "Blowfish cipher algorithm (x86_64/AVX2)"
- depends on X86 && 64BIT
- select CRYPTO_ALGAPI
- select CRYPTO_CRYPTD
- select CRYPTO_ABLK_HELPER_X86
- select CRYPTO_BLOWFISH_COMMON
- select CRYPTO_BLOWFISH_X86_64
- help
- Blowfish cipher algorithm (x86_64/AVX2), by Bruce Schneier.
-
- This is a variable key length cipher which can use keys from 32
- bits to 448 bits in length. It's fast, simple and specifically
- designed for use on "large microprocessors".
-
- See also:
- <http://www.schneier.com/blowfish.html>
-
config CRYPTO_CAMELLIA
tristate "Camellia cipher algorithms"
depends on CRYPTO
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index f19a392..27f1118 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1661,9 +1661,6 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
- .alg = "__driver-cbc-blowfish-avx2",
- .test = alg_test_null,
- }, {
.alg = "__driver-cbc-camellia-aesni",
.test = alg_test_null,
}, {
@@ -1695,9 +1692,6 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
- .alg = "__driver-ecb-blowfish-avx2",
- .test = alg_test_null,
- }, {
.alg = "__driver-ecb-camellia-aesni",
.test = alg_test_null,
}, {
@@ -1988,9 +1982,6 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
- .alg = "cryptd(__driver-cbc-blowfish-avx2)",
- .test = alg_test_null,
- }, {
.alg = "cryptd(__driver-cbc-camellia-aesni)",
.test = alg_test_null,
}, {
@@ -2004,9 +1995,6 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_null,
.fips_allowed = 1,
}, {
- .alg = "cryptd(__driver-ecb-blowfish-avx2)",
- .test = alg_test_null,
- }, {
.alg = "cryptd(__driver-ecb-camellia-aesni)",
.test = alg_test_null,
}, {
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