diff options
author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-07-03 10:55:07 +0200 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-07-26 15:03:56 +1000 |
commit | 520c1993bbe620e39fd93de1a01b9e0dc0b97aa6 (patch) | |
tree | 7ac1589796ea1464168efa7c8f6ed0ae1d99ecc3 /arch/x86/crypto | |
parent | 5cb97700beaa005ceb2a127b6f53536a4544c9d8 (diff) | |
download | linux-520c1993bbe620e39fd93de1a01b9e0dc0b97aa6.tar.bz2 |
crypto: aegis128l/aegis256 - remove x86 and generic implementations
Three variants of AEGIS were proposed for the CAESAR competition, and
only one was selected for the final portfolio: AEGIS128.
The other variants, AEGIS128L and AEGIS256, are not likely to ever turn
up in networking protocols or other places where interoperability
between Linux and other systems is a concern, nor are they likely to
be subjected to further cryptanalysis. However, uninformed users may
think that AEGIS128L (which is faster) is equally fit for use.
So let's remove them now, before anyone starts using them and we are
forced to support them forever.
Note that there are no known flaws in the algorithms or in any of these
implementations, but they have simply outlived their usefulness.
Reviewed-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/x86/crypto')
-rw-r--r-- | arch/x86/crypto/Makefile | 4 | ||||
-rw-r--r-- | arch/x86/crypto/aegis128l-aesni-asm.S | 823 | ||||
-rw-r--r-- | arch/x86/crypto/aegis128l-aesni-glue.c | 293 | ||||
-rw-r--r-- | arch/x86/crypto/aegis256-aesni-asm.S | 700 | ||||
-rw-r--r-- | arch/x86/crypto/aegis256-aesni-glue.c | 293 |
5 files changed, 0 insertions, 2113 deletions
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index 6f1d825fbb09..759b1a927826 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -36,8 +36,6 @@ obj-$(CONFIG_CRYPTO_CRCT10DIF_PCLMUL) += crct10dif-pclmul.o obj-$(CONFIG_CRYPTO_POLY1305_X86_64) += poly1305-x86_64.o obj-$(CONFIG_CRYPTO_AEGIS128_AESNI_SSE2) += aegis128-aesni.o -obj-$(CONFIG_CRYPTO_AEGIS128L_AESNI_SSE2) += aegis128l-aesni.o -obj-$(CONFIG_CRYPTO_AEGIS256_AESNI_SSE2) += aegis256-aesni.o obj-$(CONFIG_CRYPTO_NHPOLY1305_SSE2) += nhpoly1305-sse2.o obj-$(CONFIG_CRYPTO_NHPOLY1305_AVX2) += nhpoly1305-avx2.o @@ -70,8 +68,6 @@ chacha-x86_64-y := chacha-ssse3-x86_64.o chacha_glue.o serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o -aegis128l-aesni-y := aegis128l-aesni-asm.o aegis128l-aesni-glue.o -aegis256-aesni-y := aegis256-aesni-asm.o aegis256-aesni-glue.o nhpoly1305-sse2-y := nh-sse2-x86_64.o nhpoly1305-sse2-glue.o diff --git a/arch/x86/crypto/aegis128l-aesni-asm.S b/arch/x86/crypto/aegis128l-aesni-asm.S deleted file mode 100644 index 1461ef00c0e8..000000000000 --- a/arch/x86/crypto/aegis128l-aesni-asm.S +++ /dev/null @@ -1,823 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * AES-NI + SSE2 implementation of AEGIS-128L - * - * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> - * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. - */ - -#include <linux/linkage.h> -#include <asm/frame.h> - -#define STATE0 %xmm0 -#define STATE1 %xmm1 -#define STATE2 %xmm2 -#define STATE3 %xmm3 -#define STATE4 %xmm4 -#define STATE5 %xmm5 -#define STATE6 %xmm6 -#define STATE7 %xmm7 -#define MSG0 %xmm8 -#define MSG1 %xmm9 -#define T0 %xmm10 -#define T1 %xmm11 -#define T2 %xmm12 -#define T3 %xmm13 - -#define STATEP %rdi -#define LEN %rsi -#define SRC %rdx -#define DST %rcx - -.section .rodata.cst16.aegis128l_const, "aM", @progbits, 32 -.align 16 -.Laegis128l_const_0: - .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d - .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 -.Laegis128l_const_1: - .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 - .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd - -.section .rodata.cst16.aegis128l_counter, "aM", @progbits, 16 -.align 16 -.Laegis128l_counter0: - .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 - .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f -.Laegis128l_counter1: - .byte 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 - .byte 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f - -.text - -/* - * __load_partial: internal ABI - * input: - * LEN - bytes - * SRC - src - * output: - * MSG0 - first message block - * MSG1 - second message block - * changed: - * T0 - * %r8 - * %r9 - */ -__load_partial: - xor %r9d, %r9d - pxor MSG0, MSG0 - pxor MSG1, MSG1 - - mov LEN, %r8 - and $0x1, %r8 - jz .Lld_partial_1 - - mov LEN, %r8 - and $0x1E, %r8 - add SRC, %r8 - mov (%r8), %r9b - -.Lld_partial_1: - mov LEN, %r8 - and $0x2, %r8 - jz .Lld_partial_2 - - mov LEN, %r8 - and $0x1C, %r8 - add SRC, %r8 - shl $0x10, %r9 - mov (%r8), %r9w - -.Lld_partial_2: - mov LEN, %r8 - and $0x4, %r8 - jz .Lld_partial_4 - - mov LEN, %r8 - and $0x18, %r8 - add SRC, %r8 - shl $32, %r9 - mov (%r8), %r8d - xor %r8, %r9 - -.Lld_partial_4: - movq %r9, MSG0 - - mov LEN, %r8 - and $0x8, %r8 - jz .Lld_partial_8 - - mov LEN, %r8 - and $0x10, %r8 - add SRC, %r8 - pslldq $8, MSG0 - movq (%r8), T0 - pxor T0, MSG0 - -.Lld_partial_8: - mov LEN, %r8 - and $0x10, %r8 - jz .Lld_partial_16 - - movdqa MSG0, MSG1 - movdqu (SRC), MSG0 - -.Lld_partial_16: - ret -ENDPROC(__load_partial) - -/* - * __store_partial: internal ABI - * input: - * LEN - bytes - * DST - dst - * output: - * T0 - first message block - * T1 - second message block - * changed: - * %r8 - * %r9 - * %r10 - */ -__store_partial: - mov LEN, %r8 - mov DST, %r9 - - cmp $16, %r8 - jl .Lst_partial_16 - - movdqu T0, (%r9) - movdqa T1, T0 - - sub $16, %r8 - add $16, %r9 - -.Lst_partial_16: - movq T0, %r10 - - cmp $8, %r8 - jl .Lst_partial_8 - - mov %r10, (%r9) - psrldq $8, T0 - movq T0, %r10 - - sub $8, %r8 - add $8, %r9 - -.Lst_partial_8: - cmp $4, %r8 - jl .Lst_partial_4 - - mov %r10d, (%r9) - shr $32, %r10 - - sub $4, %r8 - add $4, %r9 - -.Lst_partial_4: - cmp $2, %r8 - jl .Lst_partial_2 - - mov %r10w, (%r9) - shr $0x10, %r10 - - sub $2, %r8 - add $2, %r9 - -.Lst_partial_2: - cmp $1, %r8 - jl .Lst_partial_1 - - mov %r10b, (%r9) - -.Lst_partial_1: - ret -ENDPROC(__store_partial) - -.macro update - movdqa STATE7, T0 - aesenc STATE0, STATE7 - aesenc STATE1, STATE0 - aesenc STATE2, STATE1 - aesenc STATE3, STATE2 - aesenc STATE4, STATE3 - aesenc STATE5, STATE4 - aesenc STATE6, STATE5 - aesenc T0, STATE6 -.endm - -.macro update0 - update - pxor MSG0, STATE7 - pxor MSG1, STATE3 -.endm - -.macro update1 - update - pxor MSG0, STATE6 - pxor MSG1, STATE2 -.endm - -.macro update2 - update - pxor MSG0, STATE5 - pxor MSG1, STATE1 -.endm - -.macro update3 - update - pxor MSG0, STATE4 - pxor MSG1, STATE0 -.endm - -.macro update4 - update - pxor MSG0, STATE3 - pxor MSG1, STATE7 -.endm - -.macro update5 - update - pxor MSG0, STATE2 - pxor MSG1, STATE6 -.endm - -.macro update6 - update - pxor MSG0, STATE1 - pxor MSG1, STATE5 -.endm - -.macro update7 - update - pxor MSG0, STATE0 - pxor MSG1, STATE4 -.endm - -.macro state_load - movdqu 0x00(STATEP), STATE0 - movdqu 0x10(STATEP), STATE1 - movdqu 0x20(STATEP), STATE2 - movdqu 0x30(STATEP), STATE3 - movdqu 0x40(STATEP), STATE4 - movdqu 0x50(STATEP), STATE5 - movdqu 0x60(STATEP), STATE6 - movdqu 0x70(STATEP), STATE7 -.endm - -.macro state_store s0 s1 s2 s3 s4 s5 s6 s7 - movdqu \s7, 0x00(STATEP) - movdqu \s0, 0x10(STATEP) - movdqu \s1, 0x20(STATEP) - movdqu \s2, 0x30(STATEP) - movdqu \s3, 0x40(STATEP) - movdqu \s4, 0x50(STATEP) - movdqu \s5, 0x60(STATEP) - movdqu \s6, 0x70(STATEP) -.endm - -.macro state_store0 - state_store STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 -.endm - -.macro state_store1 - state_store STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 -.endm - -.macro state_store2 - state_store STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 -.endm - -.macro state_store3 - state_store STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 -.endm - -.macro state_store4 - state_store STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 -.endm - -.macro state_store5 - state_store STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 -.endm - -.macro state_store6 - state_store STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 -.endm - -.macro state_store7 - state_store STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 -.endm - -/* - * void crypto_aegis128l_aesni_init(void *state, const void *key, const void *iv); - */ -ENTRY(crypto_aegis128l_aesni_init) - FRAME_BEGIN - - /* load key: */ - movdqa (%rsi), MSG1 - movdqa MSG1, STATE0 - movdqa MSG1, STATE4 - movdqa MSG1, STATE5 - movdqa MSG1, STATE6 - movdqa MSG1, STATE7 - - /* load IV: */ - movdqu (%rdx), MSG0 - pxor MSG0, STATE0 - pxor MSG0, STATE4 - - /* load the constants: */ - movdqa .Laegis128l_const_0, STATE2 - movdqa .Laegis128l_const_1, STATE1 - movdqa STATE1, STATE3 - pxor STATE2, STATE5 - pxor STATE1, STATE6 - pxor STATE2, STATE7 - - /* update 10 times with IV and KEY: */ - update0 - update1 - update2 - update3 - update4 - update5 - update6 - update7 - update0 - update1 - - state_store1 - - FRAME_END - ret -ENDPROC(crypto_aegis128l_aesni_init) - -.macro ad_block a i - movdq\a (\i * 0x20 + 0x00)(SRC), MSG0 - movdq\a (\i * 0x20 + 0x10)(SRC), MSG1 - update\i - sub $0x20, LEN - cmp $0x20, LEN - jl .Lad_out_\i -.endm - -/* - * void crypto_aegis128l_aesni_ad(void *state, unsigned int length, - * const void *data); - */ -ENTRY(crypto_aegis128l_aesni_ad) - FRAME_BEGIN - - cmp $0x20, LEN - jb .Lad_out - - state_load - - mov SRC, %r8 - and $0xf, %r8 - jnz .Lad_u_loop - -.align 8 -.Lad_a_loop: - ad_block a 0 - ad_block a 1 - ad_block a 2 - ad_block a 3 - ad_block a 4 - ad_block a 5 - ad_block a 6 - ad_block a 7 - - add $0x100, SRC - jmp .Lad_a_loop - -.align 8 -.Lad_u_loop: - ad_block u 0 - ad_block u 1 - ad_block u 2 - ad_block u 3 - ad_block u 4 - ad_block u 5 - ad_block u 6 - ad_block u 7 - - add $0x100, SRC - jmp .Lad_u_loop - -.Lad_out_0: - state_store0 - FRAME_END - ret - -.Lad_out_1: - state_store1 - FRAME_END - ret - -.Lad_out_2: - state_store2 - FRAME_END - ret - -.Lad_out_3: - state_store3 - FRAME_END - ret - -.Lad_out_4: - state_store4 - FRAME_END - ret - -.Lad_out_5: - state_store5 - FRAME_END - ret - -.Lad_out_6: - state_store6 - FRAME_END - ret - -.Lad_out_7: - state_store7 - FRAME_END - ret - -.Lad_out: - FRAME_END - ret -ENDPROC(crypto_aegis128l_aesni_ad) - -.macro crypt m0 m1 s0 s1 s2 s3 s4 s5 s6 s7 - pxor \s1, \m0 - pxor \s6, \m0 - movdqa \s2, T3 - pand \s3, T3 - pxor T3, \m0 - - pxor \s2, \m1 - pxor \s5, \m1 - movdqa \s6, T3 - pand \s7, T3 - pxor T3, \m1 -.endm - -.macro crypt0 m0 m1 - crypt \m0 \m1 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 -.endm - -.macro crypt1 m0 m1 - crypt \m0 \m1 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 -.endm - -.macro crypt2 m0 m1 - crypt \m0 \m1 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 -.endm - -.macro crypt3 m0 m1 - crypt \m0 \m1 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 STATE4 -.endm - -.macro crypt4 m0 m1 - crypt \m0 \m1 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 STATE3 -.endm - -.macro crypt5 m0 m1 - crypt \m0 \m1 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 STATE2 -.endm - -.macro crypt6 m0 m1 - crypt \m0 \m1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 STATE1 -.endm - -.macro crypt7 m0 m1 - crypt \m0 \m1 STATE1 STATE2 STATE3 STATE4 STATE5 STATE6 STATE7 STATE0 -.endm - -.macro encrypt_block a i - movdq\a (\i * 0x20 + 0x00)(SRC), MSG0 - movdq\a (\i * 0x20 + 0x10)(SRC), MSG1 - movdqa MSG0, T0 - movdqa MSG1, T1 - crypt\i T0, T1 - movdq\a T0, (\i * 0x20 + 0x00)(DST) - movdq\a T1, (\i * 0x20 + 0x10)(DST) - - update\i - - sub $0x20, LEN - cmp $0x20, LEN - jl .Lenc_out_\i -.endm - -.macro decrypt_block a i - movdq\a (\i * 0x20 + 0x00)(SRC), MSG0 - movdq\a (\i * 0x20 + 0x10)(SRC), MSG1 - crypt\i MSG0, MSG1 - movdq\a MSG0, (\i * 0x20 + 0x00)(DST) - movdq\a MSG1, (\i * 0x20 + 0x10)(DST) - - update\i - - sub $0x20, LEN - cmp $0x20, LEN - jl .Ldec_out_\i -.endm - -/* - * void crypto_aegis128l_aesni_enc(void *state, unsigned int length, - * const void *src, void *dst); - */ -ENTRY(crypto_aegis128l_aesni_enc) - FRAME_BEGIN - - cmp $0x20, LEN - jb .Lenc_out - - state_load - - mov SRC, %r8 - or DST, %r8 - and $0xf, %r8 - jnz .Lenc_u_loop - -.align 8 -.Lenc_a_loop: - encrypt_block a 0 - encrypt_block a 1 - encrypt_block a 2 - encrypt_block a 3 - encrypt_block a 4 - encrypt_block a 5 - encrypt_block a 6 - encrypt_block a 7 - - add $0x100, SRC - add $0x100, DST - jmp .Lenc_a_loop - -.align 8 -.Lenc_u_loop: - encrypt_block u 0 - encrypt_block u 1 - encrypt_block u 2 - encrypt_block u 3 - encrypt_block u 4 - encrypt_block u 5 - encrypt_block u 6 - encrypt_block u 7 - - add $0x100, SRC - add $0x100, DST - jmp .Lenc_u_loop - -.Lenc_out_0: - state_store0 - FRAME_END - ret - -.Lenc_out_1: - state_store1 - FRAME_END - ret - -.Lenc_out_2: - state_store2 - FRAME_END - ret - -.Lenc_out_3: - state_store3 - FRAME_END - ret - -.Lenc_out_4: - state_store4 - FRAME_END - ret - -.Lenc_out_5: - state_store5 - FRAME_END - ret - -.Lenc_out_6: - state_store6 - FRAME_END - ret - -.Lenc_out_7: - state_store7 - FRAME_END - ret - -.Lenc_out: - FRAME_END - ret -ENDPROC(crypto_aegis128l_aesni_enc) - -/* - * void crypto_aegis128l_aesni_enc_tail(void *state, unsigned int length, - * const void *src, void *dst); - */ -ENTRY(crypto_aegis128l_aesni_enc_tail) - FRAME_BEGIN - - state_load - - /* encrypt message: */ - call __load_partial - - movdqa MSG0, T0 - movdqa MSG1, T1 - crypt0 T0, T1 - - call __store_partial - - update0 - - state_store0 - - FRAME_END - ret -ENDPROC(crypto_aegis128l_aesni_enc_tail) - -/* - * void crypto_aegis128l_aesni_dec(void *state, unsigned int length, - * const void *src, void *dst); - */ -ENTRY(crypto_aegis128l_aesni_dec) - FRAME_BEGIN - - cmp $0x20, LEN - jb .Ldec_out - - state_load - - mov SRC, %r8 - or DST, %r8 - and $0xF, %r8 - jnz .Ldec_u_loop - -.align 8 -.Ldec_a_loop: - decrypt_block a 0 - decrypt_block a 1 - decrypt_block a 2 - decrypt_block a 3 - decrypt_block a 4 - decrypt_block a 5 - decrypt_block a 6 - decrypt_block a 7 - - add $0x100, SRC - add $0x100, DST - jmp .Ldec_a_loop - -.align 8 -.Ldec_u_loop: - decrypt_block u 0 - decrypt_block u 1 - decrypt_block u 2 - decrypt_block u 3 - decrypt_block u 4 - decrypt_block u 5 - decrypt_block u 6 - decrypt_block u 7 - - add $0x100, SRC - add $0x100, DST - jmp .Ldec_u_loop - -.Ldec_out_0: - state_store0 - FRAME_END - ret - -.Ldec_out_1: - state_store1 - FRAME_END - ret - -.Ldec_out_2: - state_store2 - FRAME_END - ret - -.Ldec_out_3: - state_store3 - FRAME_END - ret - -.Ldec_out_4: - state_store4 - FRAME_END - ret - -.Ldec_out_5: - state_store5 - FRAME_END - ret - -.Ldec_out_6: - state_store6 - FRAME_END - ret - -.Ldec_out_7: - state_store7 - FRAME_END - ret - -.Ldec_out: - FRAME_END - ret -ENDPROC(crypto_aegis128l_aesni_dec) - -/* - * void crypto_aegis128l_aesni_dec_tail(void *state, unsigned int length, - * const void *src, void *dst); - */ -ENTRY(crypto_aegis128l_aesni_dec_tail) - FRAME_BEGIN - - state_load - - /* decrypt message: */ - call __load_partial - - crypt0 MSG0, MSG1 - - movdqa MSG0, T0 - movdqa MSG1, T1 - call __store_partial - - /* mask with byte count: */ - movq LEN, T0 - punpcklbw T0, T0 - punpcklbw T0, T0 - punpcklbw T0, T0 - punpcklbw T0, T0 - movdqa T0, T1 - movdqa .Laegis128l_counter0, T2 - movdqa .Laegis128l_counter1, T3 - pcmpgtb T2, T0 - pcmpgtb T3, T1 - pand T0, MSG0 - pand T1, MSG1 - - update0 - - state_store0 - - FRAME_END - ret -ENDPROC(crypto_aegis128l_aesni_dec_tail) - -/* - * void crypto_aegis128l_aesni_final(void *state, void *tag_xor, - * u64 assoclen, u64 cryptlen); - */ -ENTRY(crypto_aegis128l_aesni_final) - FRAME_BEGIN - - state_load - - /* prepare length block: */ - movq %rdx, MSG0 - movq %rcx, T0 - pslldq $8, T0 - pxor T0, MSG0 - psllq $3, MSG0 /* multiply by 8 (to get bit count) */ - - pxor STATE2, MSG0 - movdqa MSG0, MSG1 - - /* update state: */ - update0 - update1 - update2 - update3 - update4 - update5 - update6 - - /* xor tag: */ - movdqu (%rsi), T0 - - pxor STATE1, T0 - pxor STATE2, T0 - pxor STATE3, T0 - pxor STATE4, T0 - pxor STATE5, T0 - pxor STATE6, T0 - pxor STATE7, T0 - - movdqu T0, (%rsi) - - FRAME_END - ret -ENDPROC(crypto_aegis128l_aesni_final) diff --git a/arch/x86/crypto/aegis128l-aesni-glue.c b/arch/x86/crypto/aegis128l-aesni-glue.c deleted file mode 100644 index 19eb28b316f0..000000000000 --- a/arch/x86/crypto/aegis128l-aesni-glue.c +++ /dev/null @@ -1,293 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * The AEGIS-128L Authenticated-Encryption Algorithm - * Glue for AES-NI + SSE2 implementation - * - * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> - * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. - */ - -#include <crypto/internal/aead.h> -#include <crypto/internal/simd.h> -#include <crypto/internal/skcipher.h> -#include <crypto/scatterwalk.h> -#include <linux/module.h> -#include <asm/fpu/api.h> -#include <asm/cpu_device_id.h> - -#define AEGIS128L_BLOCK_ALIGN 16 -#define AEGIS128L_BLOCK_SIZE 32 -#define AEGIS128L_NONCE_SIZE 16 -#define AEGIS128L_STATE_BLOCKS 8 -#define AEGIS128L_KEY_SIZE 16 -#define AEGIS128L_MIN_AUTH_SIZE 8 -#define AEGIS128L_MAX_AUTH_SIZE 16 - -asmlinkage void crypto_aegis128l_aesni_init(void *state, void *key, void *iv); - -asmlinkage void crypto_aegis128l_aesni_ad( - void *state, unsigned int length, const void *data); - -asmlinkage void crypto_aegis128l_aesni_enc( - void *state, unsigned int length, const void *src, void *dst); - -asmlinkage void crypto_aegis128l_aesni_dec( - void *state, unsigned int length, const void *src, void *dst); - -asmlinkage void crypto_aegis128l_aesni_enc_tail( - void *state, unsigned int length, const void *src, void *dst); - -asmlinkage void crypto_aegis128l_aesni_dec_tail( - void *state, unsigned int length, const void *src, void *dst); - -asmlinkage void crypto_aegis128l_aesni_final( - void *state, void *tag_xor, unsigned int cryptlen, - unsigned int assoclen); - -struct aegis_block { - u8 bytes[AEGIS128L_BLOCK_SIZE] __aligned(AEGIS128L_BLOCK_ALIGN); -}; - -struct aegis_state { - struct aegis_block blocks[AEGIS128L_STATE_BLOCKS]; -}; - -struct aegis_ctx { - struct aegis_block key; -}; - -struct aegis_crypt_ops { - int (*skcipher_walk_init)(struct skcipher_walk *walk, - struct aead_request *req, bool atomic); - - void (*crypt_blocks)(void *state, unsigned int length, const void *src, - void *dst); - void (*crypt_tail)(void *state, unsigned int length, const void *src, - void *dst); -}; - -static void crypto_aegis128l_aesni_process_ad( - struct aegis_state *state, struct scatterlist *sg_src, - unsigned int assoclen) -{ - struct scatter_walk walk; - struct aegis_block buf; - unsigned int pos = 0; - - scatterwalk_start(&walk, sg_src); - while (assoclen != 0) { - unsigned int size = scatterwalk_clamp(&walk, assoclen); - unsigned int left = size; - void *mapped = scatterwalk_map(&walk); - const u8 *src = (const u8 *)mapped; - - if (pos + size >= AEGIS128L_BLOCK_SIZE) { - if (pos > 0) { - unsigned int fill = AEGIS128L_BLOCK_SIZE - pos; - memcpy(buf.bytes + pos, src, fill); - crypto_aegis128l_aesni_ad(state, - AEGIS128L_BLOCK_SIZE, - buf.bytes); - pos = 0; - left -= fill; - src += fill; - } - - crypto_aegis128l_aesni_ad(state, left, src); - - src += left & ~(AEGIS128L_BLOCK_SIZE - 1); - left &= AEGIS128L_BLOCK_SIZE - 1; - } - - memcpy(buf.bytes + pos, src, left); - pos += left; - assoclen -= size; - - scatterwalk_unmap(mapped); - scatterwalk_advance(&walk, size); - scatterwalk_done(&walk, 0, assoclen); - } - - if (pos > 0) { - memset(buf.bytes + pos, 0, AEGIS128L_BLOCK_SIZE - pos); - crypto_aegis128l_aesni_ad(state, AEGIS128L_BLOCK_SIZE, buf.bytes); - } -} - -static void crypto_aegis128l_aesni_process_crypt( - struct aegis_state *state, struct skcipher_walk *walk, - const struct aegis_crypt_ops *ops) -{ - while (walk->nbytes >= AEGIS128L_BLOCK_SIZE) { - ops->crypt_blocks(state, round_down(walk->nbytes, - AEGIS128L_BLOCK_SIZE), - walk->src.virt.addr, walk->dst.virt.addr); - skcipher_walk_done(walk, walk->nbytes % AEGIS128L_BLOCK_SIZE); - } - - if (walk->nbytes) { - ops->crypt_tail(state, walk->nbytes, walk->src.virt.addr, - walk->dst.virt.addr); - skcipher_walk_done(walk, 0); - } -} - -static struct aegis_ctx *crypto_aegis128l_aesni_ctx(struct crypto_aead *aead) -{ - u8 *ctx = crypto_aead_ctx(aead); - ctx = PTR_ALIGN(ctx, __alignof__(struct aegis_ctx)); - return (void *)ctx; -} - -static int crypto_aegis128l_aesni_setkey(struct crypto_aead *aead, - const u8 *key, unsigned int keylen) -{ - struct aegis_ctx *ctx = crypto_aegis128l_aesni_ctx(aead); - - if (keylen != AEGIS128L_KEY_SIZE) { - crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); - return -EINVAL; - } - - memcpy(ctx->key.bytes, key, AEGIS128L_KEY_SIZE); - - return 0; -} - -static int crypto_aegis128l_aesni_setauthsize(struct crypto_aead *tfm, - unsigned int authsize) -{ - if (authsize > AEGIS128L_MAX_AUTH_SIZE) - return -EINVAL; - if (authsize < AEGIS128L_MIN_AUTH_SIZE) - return -EINVAL; - return 0; -} - -static void crypto_aegis128l_aesni_crypt(struct aead_request *req, - struct aegis_block *tag_xor, - unsigned int cryptlen, - const struct aegis_crypt_ops *ops) -{ - struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct aegis_ctx *ctx = crypto_aegis128l_aesni_ctx(tfm); - struct skcipher_walk walk; - struct aegis_state state; - - ops->skcipher_walk_init(&walk, req, true); - - kernel_fpu_begin(); - - crypto_aegis128l_aesni_init(&state, ctx->key.bytes, req->iv); - crypto_aegis128l_aesni_process_ad(&state, req->src, req->assoclen); - crypto_aegis128l_aesni_process_crypt(&state, &walk, ops); - crypto_aegis128l_aesni_final(&state, tag_xor, req->assoclen, cryptlen); - - kernel_fpu_end(); -} - -static int crypto_aegis128l_aesni_encrypt(struct aead_request *req) -{ - static const struct aegis_crypt_ops OPS = { - .skcipher_walk_init = skcipher_walk_aead_encrypt, - .crypt_blocks = crypto_aegis128l_aesni_enc, - .crypt_tail = crypto_aegis128l_aesni_enc_tail, - }; - - struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct aegis_block tag = {}; - unsigned int authsize = crypto_aead_authsize(tfm); - unsigned int cryptlen = req->cryptlen; - - crypto_aegis128l_aesni_crypt(req, &tag, cryptlen, &OPS); - - scatterwalk_map_and_copy(tag.bytes, req->dst, - req->assoclen + cryptlen, authsize, 1); - return 0; -} - -static int crypto_aegis128l_aesni_decrypt(struct aead_request *req) -{ - static const struct aegis_block zeros = {}; - - static const struct aegis_crypt_ops OPS = { - .skcipher_walk_init = skcipher_walk_aead_decrypt, - .crypt_blocks = crypto_aegis128l_aesni_dec, - .crypt_tail = crypto_aegis128l_aesni_dec_tail, - }; - - struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct aegis_block tag; - unsigned int authsize = crypto_aead_authsize(tfm); - unsigned int cryptlen = req->cryptlen - authsize; - - scatterwalk_map_and_copy(tag.bytes, req->src, - req->assoclen + cryptlen, authsize, 0); - - crypto_aegis128l_aesni_crypt(req, &tag, cryptlen, &OPS); - - return crypto_memneq(tag.bytes, zeros.bytes, authsize) ? -EBADMSG : 0; -} - -static int crypto_aegis128l_aesni_init_tfm(struct crypto_aead *aead) -{ - return 0; -} - -static void crypto_aegis128l_aesni_exit_tfm(struct crypto_aead *aead) -{ -} - -static struct aead_alg crypto_aegis128l_aesni_alg = { - .setkey = crypto_aegis128l_aesni_setkey, - .setauthsize = crypto_aegis128l_aesni_setauthsize, - .encrypt = crypto_aegis128l_aesni_encrypt, - .decrypt = crypto_aegis128l_aesni_decrypt, - .init = crypto_aegis128l_aesni_init_tfm, - .exit = crypto_aegis128l_aesni_exit_tfm, - - .ivsize = AEGIS128L_NONCE_SIZE, - .maxauthsize = AEGIS128L_MAX_AUTH_SIZE, - .chunksize = AEGIS128L_BLOCK_SIZE, - - .base = { - .cra_flags = CRYPTO_ALG_INTERNAL, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct aegis_ctx) + - __alignof__(struct aegis_ctx), - .cra_alignmask = 0, - .cra_priority = 400, - - .cra_name = "__aegis128l", - .cra_driver_name = "__aegis128l-aesni", - - .cra_module = THIS_MODULE, - } -}; - -static struct simd_aead_alg *simd_alg; - -static int __init crypto_aegis128l_aesni_module_init(void) -{ - if (!boot_cpu_has(X86_FEATURE_XMM2) || - !boot_cpu_has(X86_FEATURE_AES) || - !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) - return -ENODEV; - - return simd_register_aeads_compat(&crypto_aegis128l_aesni_alg, 1, - &simd_alg); -} - -static void __exit crypto_aegis128l_aesni_module_exit(void) -{ - simd_unregister_aeads(&crypto_aegis128l_aesni_alg, 1, &simd_alg); -} - -module_init(crypto_aegis128l_aesni_module_init); -module_exit(crypto_aegis128l_aesni_module_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); -MODULE_DESCRIPTION("AEGIS-128L AEAD algorithm -- AESNI+SSE2 implementation"); -MODULE_ALIAS_CRYPTO("aegis128l"); -MODULE_ALIAS_CRYPTO("aegis128l-aesni"); diff --git a/arch/x86/crypto/aegis256-aesni-asm.S b/arch/x86/crypto/aegis256-aesni-asm.S deleted file mode 100644 index 37d9b13dfd85..000000000000 --- a/arch/x86/crypto/aegis256-aesni-asm.S +++ /dev/null @@ -1,700 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * AES-NI + SSE2 implementation of AEGIS-128L - * - * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> - * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. - */ - -#include <linux/linkage.h> -#include <asm/frame.h> - -#define STATE0 %xmm0 -#define STATE1 %xmm1 -#define STATE2 %xmm2 -#define STATE3 %xmm3 -#define STATE4 %xmm4 -#define STATE5 %xmm5 -#define MSG %xmm6 -#define T0 %xmm7 -#define T1 %xmm8 -#define T2 %xmm9 -#define T3 %xmm10 - -#define STATEP %rdi -#define LEN %rsi -#define SRC %rdx -#define DST %rcx - -.section .rodata.cst16.aegis256_const, "aM", @progbits, 32 -.align 16 -.Laegis256_const_0: - .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d - .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 -.Laegis256_const_1: - .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 - .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd - -.section .rodata.cst16.aegis256_counter, "aM", @progbits, 16 -.align 16 -.Laegis256_counter: - .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 - .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f - -.text - -/* - * __load_partial: internal ABI - * input: - * LEN - bytes - * SRC - src - * output: - * MSG - message block - * changed: - * T0 - * %r8 - * %r9 - */ -__load_partial: - xor %r9d, %r9d - pxor MSG, MSG - - mov LEN, %r8 - and $0x1, %r8 - jz .Lld_partial_1 - - mov LEN, %r8 - and $0x1E, %r8 - add SRC, %r8 - mov (%r8), %r9b - -.Lld_partial_1: - mov LEN, %r8 - and $0x2, %r8 - jz .Lld_partial_2 - - mov LEN, %r8 - and $0x1C, %r8 - add SRC, %r8 - shl $0x10, %r9 - mov (%r8), %r9w - -.Lld_partial_2: - mov LEN, %r8 - and $0x4, %r8 - jz .Lld_partial_4 - - mov LEN, %r8 - and $0x18, %r8 - add SRC, %r8 - shl $32, %r9 - mov (%r8), %r8d - xor %r8, %r9 - -.Lld_partial_4: - movq %r9, MSG - - mov LEN, %r8 - and $0x8, %r8 - jz .Lld_partial_8 - - mov LEN, %r8 - and $0x10, %r8 - add SRC, %r8 - pslldq $8, MSG - movq (%r8), T0 - pxor T0, MSG - -.Lld_partial_8: - ret -ENDPROC(__load_partial) - -/* - * __store_partial: internal ABI - * input: - * LEN - bytes - * DST - dst - * output: - * T0 - message block - * changed: - * %r8 - * %r9 - * %r10 - */ -__store_partial: - mov LEN, %r8 - mov DST, %r9 - - movq T0, %r10 - - cmp $8, %r8 - jl .Lst_partial_8 - - mov %r10, (%r9) - psrldq $8, T0 - movq T0, %r10 - - sub $8, %r8 - add $8, %r9 - -.Lst_partial_8: - cmp $4, %r8 - jl .Lst_partial_4 - - mov %r10d, (%r9) - shr $32, %r10 - - sub $4, %r8 - add $4, %r9 - -.Lst_partial_4: - cmp $2, %r8 - jl .Lst_partial_2 - - mov %r10w, (%r9) - shr $0x10, %r10 - - sub $2, %r8 - add $2, %r9 - -.Lst_partial_2: - cmp $1, %r8 - jl .Lst_partial_1 - - mov %r10b, (%r9) - -.Lst_partial_1: - ret -ENDPROC(__store_partial) - -.macro update - movdqa STATE5, T0 - aesenc STATE0, STATE5 - aesenc STATE1, STATE0 - aesenc STATE2, STATE1 - aesenc STATE3, STATE2 - aesenc STATE4, STATE3 - aesenc T0, STATE4 -.endm - -.macro update0 m - update - pxor \m, STATE5 -.endm - -.macro update1 m - update - pxor \m, STATE4 -.endm - -.macro update2 m - update - pxor \m, STATE3 -.endm - -.macro update3 m - update - pxor \m, STATE2 -.endm - -.macro update4 m - update - pxor \m, STATE1 -.endm - -.macro update5 m - update - pxor \m, STATE0 -.endm - -.macro state_load - movdqu 0x00(STATEP), STATE0 - movdqu 0x10(STATEP), STATE1 - movdqu 0x20(STATEP), STATE2 - movdqu 0x30(STATEP), STATE3 - movdqu 0x40(STATEP), STATE4 - movdqu 0x50(STATEP), STATE5 -.endm - -.macro state_store s0 s1 s2 s3 s4 s5 - movdqu \s5, 0x00(STATEP) - movdqu \s0, 0x10(STATEP) - movdqu \s1, 0x20(STATEP) - movdqu \s2, 0x30(STATEP) - movdqu \s3, 0x40(STATEP) - movdqu \s4, 0x50(STATEP) -.endm - -.macro state_store0 - state_store STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 -.endm - -.macro state_store1 - state_store STATE5 STATE0 STATE1 STATE2 STATE3 STATE4 -.endm - -.macro state_store2 - state_store STATE4 STATE5 STATE0 STATE1 STATE2 STATE3 -.endm - -.macro state_store3 - state_store STATE3 STATE4 STATE5 STATE0 STATE1 STATE2 -.endm - -.macro state_store4 - state_store STATE2 STATE3 STATE4 STATE5 STATE0 STATE1 -.endm - -.macro state_store5 - state_store STATE1 STATE2 STATE3 STATE4 STATE5 STATE0 -.endm - -/* - * void crypto_aegis256_aesni_init(void *state, const void *key, const void *iv); - */ -ENTRY(crypto_aegis256_aesni_init) - FRAME_BEGIN - - /* load key: */ - movdqa 0x00(%rsi), MSG - movdqa 0x10(%rsi), T1 - movdqa MSG, STATE4 - movdqa T1, STATE5 - - /* load IV: */ - movdqu 0x00(%rdx), T2 - movdqu 0x10(%rdx), T3 - pxor MSG, T2 - pxor T1, T3 - movdqa T2, STATE0 - movdqa T3, STATE1 - - /* load the constants: */ - movdqa .Laegis256_const_0, STATE3 - movdqa .Laegis256_const_1, STATE2 - pxor STATE3, STATE4 - pxor STATE2, STATE5 - - /* update 10 times with IV and KEY: */ - update0 MSG - update1 T1 - update2 T2 - update3 T3 - update4 MSG - update5 T1 - update0 T2 - update1 T3 - update2 MSG - update3 T1 - update4 T2 - update5 T3 - update0 MSG - update1 T1 - update2 T2 - update3 T3 - - state_store3 - - FRAME_END - ret -ENDPROC(crypto_aegis256_aesni_init) - -.macro ad_block a i - movdq\a (\i * 0x10)(SRC), MSG - update\i MSG - sub $0x10, LEN - cmp $0x10, LEN - jl .Lad_out_\i -.endm - -/* - * void crypto_aegis256_aesni_ad(void *state, unsigned int length, - * const void *data); - */ -ENTRY(crypto_aegis256_aesni_ad) - FRAME_BEGIN - - cmp $0x10, LEN - jb .Lad_out - - state_load - - mov SRC, %r8 - and $0xf, %r8 - jnz .Lad_u_loop - -.align 8 -.Lad_a_loop: - ad_block a 0 - ad_block a 1 - ad_block a 2 - ad_block a 3 - ad_block a 4 - ad_block a 5 - - add $0x60, SRC - jmp .Lad_a_loop - -.align 8 -.Lad_u_loop: - ad_block u 0 - ad_block u 1 - ad_block u 2 - ad_block u 3 - ad_block u 4 - ad_block u 5 - - add $0x60, SRC - jmp .Lad_u_loop - -.Lad_out_0: - state_store0 - FRAME_END - ret - -.Lad_out_1: - state_store1 - FRAME_END - ret - -.Lad_out_2: - state_store2 - FRAME_END - ret - -.Lad_out_3: - state_store3 - FRAME_END - ret - -.Lad_out_4: - state_store4 - FRAME_END - ret - -.Lad_out_5: - state_store5 - FRAME_END - ret - -.Lad_out: - FRAME_END - ret -ENDPROC(crypto_aegis256_aesni_ad) - -.macro crypt m s0 s1 s2 s3 s4 s5 - pxor \s1, \m - pxor \s4, \m - pxor \s5, \m - movdqa \s2, T3 - pand \s3, T3 - pxor T3, \m -.endm - -.macro crypt0 m - crypt \m STATE0 STATE1 STATE2 STATE3 STATE4 STATE5 -.endm - -.macro crypt1 m - crypt \m STATE5 STATE0 STATE1 STATE2 STATE3 STATE4 -.endm - -.macro crypt2 m - crypt \m STATE4 STATE5 STATE0 STATE1 STATE2 STATE3 -.endm - -.macro crypt3 m - crypt \m STATE3 STATE4 STATE5 STATE0 STATE1 STATE2 -.endm - -.macro crypt4 m - crypt \m STATE2 STATE3 STATE4 STATE5 STATE0 STATE1 -.endm - -.macro crypt5 m - crypt \m STATE1 STATE2 STATE3 STATE4 STATE5 STATE0 -.endm - -.macro encrypt_block a i - movdq\a (\i * 0x10)(SRC), MSG - movdqa MSG, T0 - crypt\i T0 - movdq\a T0, (\i * 0x10)(DST) - - update\i MSG - - sub $0x10, LEN - cmp $0x10, LEN - jl .Lenc_out_\i -.endm - -.macro decrypt_block a i - movdq\a (\i * 0x10)(SRC), MSG - crypt\i MSG - movdq\a MSG, (\i * 0x10)(DST) - - update\i MSG - - sub $0x10, LEN - cmp $0x10, LEN - jl .Ldec_out_\i -.endm - -/* - * void crypto_aegis256_aesni_enc(void *state, unsigned int length, - * const void *src, void *dst); - */ -ENTRY(crypto_aegis256_aesni_enc) - FRAME_BEGIN - - cmp $0x10, LEN - jb .Lenc_out - - state_load - - mov SRC, %r8 - or DST, %r8 - and $0xf, %r8 - jnz .Lenc_u_loop - -.align 8 -.Lenc_a_loop: - encrypt_block a 0 - encrypt_block a 1 - encrypt_block a 2 - encrypt_block a 3 - encrypt_block a 4 - encrypt_block a 5 - - add $0x60, SRC - add $0x60, DST - jmp .Lenc_a_loop - -.align 8 -.Lenc_u_loop: - encrypt_block u 0 - encrypt_block u 1 - encrypt_block u 2 - encrypt_block u 3 - encrypt_block u 4 - encrypt_block u 5 - - add $0x60, SRC - add $0x60, DST - jmp .Lenc_u_loop - -.Lenc_out_0: - state_store0 - FRAME_END - ret - -.Lenc_out_1: - state_store1 - FRAME_END - ret - -.Lenc_out_2: - state_store2 - FRAME_END - ret - -.Lenc_out_3: - state_store3 - FRAME_END - ret - -.Lenc_out_4: - state_store4 - FRAME_END - ret - -.Lenc_out_5: - state_store5 - FRAME_END - ret - -.Lenc_out: - FRAME_END - ret -ENDPROC(crypto_aegis256_aesni_enc) - -/* - * void crypto_aegis256_aesni_enc_tail(void *state, unsigned int length, - * const void *src, void *dst); - */ -ENTRY(crypto_aegis256_aesni_enc_tail) - FRAME_BEGIN - - state_load - - /* encrypt message: */ - call __load_partial - - movdqa MSG, T0 - crypt0 T0 - - call __store_partial - - update0 MSG - - state_store0 - - FRAME_END - ret -ENDPROC(crypto_aegis256_aesni_enc_tail) - -/* - * void crypto_aegis256_aesni_dec(void *state, unsigned int length, - * const void *src, void *dst); - */ -ENTRY(crypto_aegis256_aesni_dec) - FRAME_BEGIN - - cmp $0x10, LEN - jb .Ldec_out - - state_load - - mov SRC, %r8 - or DST, %r8 - and $0xF, %r8 - jnz .Ldec_u_loop - -.align 8 -.Ldec_a_loop: - decrypt_block a 0 - decrypt_block a 1 - decrypt_block a 2 - decrypt_block a 3 - decrypt_block a 4 - decrypt_block a 5 - - add $0x60, SRC - add $0x60, DST - jmp .Ldec_a_loop - -.align 8 -.Ldec_u_loop: - decrypt_block u 0 - decrypt_block u 1 - decrypt_block u 2 - decrypt_block u 3 - decrypt_block u 4 - decrypt_block u 5 - - add $0x60, SRC - add $0x60, DST - jmp .Ldec_u_loop - -.Ldec_out_0: - state_store0 - FRAME_END - ret - -.Ldec_out_1: - state_store1 - FRAME_END - ret - -.Ldec_out_2: - state_store2 - FRAME_END - ret - -.Ldec_out_3: - state_store3 - FRAME_END - ret - -.Ldec_out_4: - state_store4 - FRAME_END - ret - -.Ldec_out_5: - state_store5 - FRAME_END - ret - -.Ldec_out: - FRAME_END - ret -ENDPROC(crypto_aegis256_aesni_dec) - -/* - * void crypto_aegis256_aesni_dec_tail(void *state, unsigned int length, - * const void *src, void *dst); - */ -ENTRY(crypto_aegis256_aesni_dec_tail) - FRAME_BEGIN - - state_load - - /* decrypt message: */ - call __load_partial - - crypt0 MSG - - movdqa MSG, T0 - call __store_partial - - /* mask with byte count: */ - movq LEN, T0 - punpcklbw T0, T0 - punpcklbw T0, T0 - punpcklbw T0, T0 - punpcklbw T0, T0 - movdqa .Laegis256_counter, T1 - pcmpgtb T1, T0 - pand T0, MSG - - update0 MSG - - state_store0 - - FRAME_END - ret -ENDPROC(crypto_aegis256_aesni_dec_tail) - -/* - * void crypto_aegis256_aesni_final(void *state, void *tag_xor, - * u64 assoclen, u64 cryptlen); - */ -ENTRY(crypto_aegis256_aesni_final) - FRAME_BEGIN - - state_load - - /* prepare length block: */ - movq %rdx, MSG - movq %rcx, T0 - pslldq $8, T0 - pxor T0, MSG - psllq $3, MSG /* multiply by 8 (to get bit count) */ - - pxor STATE3, MSG - - /* update state: */ - update0 MSG - update1 MSG - update2 MSG - update3 MSG - update4 MSG - update5 MSG - update0 MSG - - /* xor tag: */ - movdqu (%rsi), MSG - - pxor STATE0, MSG - pxor STATE1, MSG - pxor STATE2, MSG - pxor STATE3, MSG - pxor STATE4, MSG - pxor STATE5, MSG - - movdqu MSG, (%rsi) - - FRAME_END - ret -ENDPROC(crypto_aegis256_aesni_final) diff --git a/arch/x86/crypto/aegis256-aesni-glue.c b/arch/x86/crypto/aegis256-aesni-glue.c deleted file mode 100644 index f84da27171d3..000000000000 --- a/arch/x86/crypto/aegis256-aesni-glue.c +++ /dev/null @@ -1,293 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * The AEGIS-256 Authenticated-Encryption Algorithm - * Glue for AES-NI + SSE2 implementation - * - * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> - * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. - */ - -#include <crypto/internal/aead.h> -#include <crypto/internal/simd.h> -#include <crypto/internal/skcipher.h> -#include <crypto/scatterwalk.h> -#include <linux/module.h> -#include <asm/fpu/api.h> -#include <asm/cpu_device_id.h> - -#define AEGIS256_BLOCK_ALIGN 16 -#define AEGIS256_BLOCK_SIZE 16 -#define AEGIS256_NONCE_SIZE 32 -#define AEGIS256_STATE_BLOCKS 6 -#define AEGIS256_KEY_SIZE 32 -#define AEGIS256_MIN_AUTH_SIZE 8 -#define AEGIS256_MAX_AUTH_SIZE 16 - -asmlinkage void crypto_aegis256_aesni_init(void *state, void *key, void *iv); - -asmlinkage void crypto_aegis256_aesni_ad( - void *state, unsigned int length, const void *data); - -asmlinkage void crypto_aegis256_aesni_enc( - void *state, unsigned int length, const void *src, void *dst); - -asmlinkage void crypto_aegis256_aesni_dec( - void *state, unsigned int length, const void *src, void *dst); - -asmlinkage void crypto_aegis256_aesni_enc_tail( - void *state, unsigned int length, const void *src, void *dst); - -asmlinkage void crypto_aegis256_aesni_dec_tail( - void *state, unsigned int length, const void *src, void *dst); - -asmlinkage void crypto_aegis256_aesni_final( - void *state, void *tag_xor, unsigned int cryptlen, - unsigned int assoclen); - -struct aegis_block { - u8 bytes[AEGIS256_BLOCK_SIZE] __aligned(AEGIS256_BLOCK_ALIGN); -}; - -struct aegis_state { - struct aegis_block blocks[AEGIS256_STATE_BLOCKS]; -}; - -struct aegis_ctx { - struct aegis_block key[AEGIS256_KEY_SIZE / AEGIS256_BLOCK_SIZE]; -}; - -struct aegis_crypt_ops { - int (*skcipher_walk_init)(struct skcipher_walk *walk, - struct aead_request *req, bool atomic); - - void (*crypt_blocks)(void *state, unsigned int length, const void *src, - void *dst); - void (*crypt_tail)(void *state, unsigned int length, const void *src, - void *dst); -}; - -static void crypto_aegis256_aesni_process_ad( - struct aegis_state *state, struct scatterlist *sg_src, - unsigned int assoclen) -{ - struct scatter_walk walk; - struct aegis_block buf; - unsigned int pos = 0; - - scatterwalk_start(&walk, sg_src); - while (assoclen != 0) { - unsigned int size = scatterwalk_clamp(&walk, assoclen); - unsigned int left = size; - void *mapped = scatterwalk_map(&walk); - const u8 *src = (const u8 *)mapped; - - if (pos + size >= AEGIS256_BLOCK_SIZE) { - if (pos > 0) { - unsigned int fill = AEGIS256_BLOCK_SIZE - pos; - memcpy(buf.bytes + pos, src, fill); - crypto_aegis256_aesni_ad(state, - AEGIS256_BLOCK_SIZE, - buf.bytes); - pos = 0; - left -= fill; - src += fill; - } - - crypto_aegis256_aesni_ad(state, left, src); - - src += left & ~(AEGIS256_BLOCK_SIZE - 1); - left &= AEGIS256_BLOCK_SIZE - 1; - } - - memcpy(buf.bytes + pos, src, left); - pos += left; - assoclen -= size; - - scatterwalk_unmap(mapped); - scatterwalk_advance(&walk, size); - scatterwalk_done(&walk, 0, assoclen); - } - - if (pos > 0) { - memset(buf.bytes + pos, 0, AEGIS256_BLOCK_SIZE - pos); - crypto_aegis256_aesni_ad(state, AEGIS256_BLOCK_SIZE, buf.bytes); - } -} - -static void crypto_aegis256_aesni_process_crypt( - struct aegis_state *state, struct skcipher_walk *walk, - const struct aegis_crypt_ops *ops) -{ - while (walk->nbytes >= AEGIS256_BLOCK_SIZE) { - ops->crypt_blocks(state, - round_down(walk->nbytes, AEGIS256_BLOCK_SIZE), - walk->src.virt.addr, walk->dst.virt.addr); - skcipher_walk_done(walk, walk->nbytes % AEGIS256_BLOCK_SIZE); - } - - if (walk->nbytes) { - ops->crypt_tail(state, walk->nbytes, walk->src.virt.addr, - walk->dst.virt.addr); - skcipher_walk_done(walk, 0); - } -} - -static struct aegis_ctx *crypto_aegis256_aesni_ctx(struct crypto_aead *aead) -{ - u8 *ctx = crypto_aead_ctx(aead); - ctx = PTR_ALIGN(ctx, __alignof__(struct aegis_ctx)); - return (void *)ctx; -} - -static int crypto_aegis256_aesni_setkey(struct crypto_aead *aead, const u8 *key, - unsigned int keylen) -{ - struct aegis_ctx *ctx = crypto_aegis256_aesni_ctx(aead); - - if (keylen != AEGIS256_KEY_SIZE) { - crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); - return -EINVAL; - } - - memcpy(ctx->key, key, AEGIS256_KEY_SIZE); - - return 0; -} - -static int crypto_aegis256_aesni_setauthsize(struct crypto_aead *tfm, - unsigned int authsize) -{ - if (authsize > AEGIS256_MAX_AUTH_SIZE) - return -EINVAL; - if (authsize < AEGIS256_MIN_AUTH_SIZE) - return -EINVAL; - return 0; -} - -static void crypto_aegis256_aesni_crypt(struct aead_request *req, - struct aegis_block *tag_xor, - unsigned int cryptlen, - const struct aegis_crypt_ops *ops) -{ - struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct aegis_ctx *ctx = crypto_aegis256_aesni_ctx(tfm); - struct skcipher_walk walk; - struct aegis_state state; - - ops->skcipher_walk_init(&walk, req, true); - - kernel_fpu_begin(); - - crypto_aegis256_aesni_init(&state, ctx->key, req->iv); - crypto_aegis256_aesni_process_ad(&state, req->src, req->assoclen); - crypto_aegis256_aesni_process_crypt(&state, &walk, ops); - crypto_aegis256_aesni_final(&state, tag_xor, req->assoclen, cryptlen); - - kernel_fpu_end(); -} - -static int crypto_aegis256_aesni_encrypt(struct aead_request *req) -{ - static const struct aegis_crypt_ops OPS = { - .skcipher_walk_init = skcipher_walk_aead_encrypt, - .crypt_blocks = crypto_aegis256_aesni_enc, - .crypt_tail = crypto_aegis256_aesni_enc_tail, - }; - - struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct aegis_block tag = {}; - unsigned int authsize = crypto_aead_authsize(tfm); - unsigned int cryptlen = req->cryptlen; - - crypto_aegis256_aesni_crypt(req, &tag, cryptlen, &OPS); - - scatterwalk_map_and_copy(tag.bytes, req->dst, - req->assoclen + cryptlen, authsize, 1); - return 0; -} - -static int crypto_aegis256_aesni_decrypt(struct aead_request *req) -{ - static const struct aegis_block zeros = {}; - - static const struct aegis_crypt_ops OPS = { - .skcipher_walk_init = skcipher_walk_aead_decrypt, - .crypt_blocks = crypto_aegis256_aesni_dec, - .crypt_tail = crypto_aegis256_aesni_dec_tail, - }; - - struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct aegis_block tag; - unsigned int authsize = crypto_aead_authsize(tfm); - unsigned int cryptlen = req->cryptlen - authsize; - - scatterwalk_map_and_copy(tag.bytes, req->src, - req->assoclen + cryptlen, authsize, 0); - - crypto_aegis256_aesni_crypt(req, &tag, cryptlen, &OPS); - - return crypto_memneq(tag.bytes, zeros.bytes, authsize) ? -EBADMSG : 0; -} - -static int crypto_aegis256_aesni_init_tfm(struct crypto_aead *aead) -{ - return 0; -} - -static void crypto_aegis256_aesni_exit_tfm(struct crypto_aead *aead) -{ -} - -static struct aead_alg crypto_aegis256_aesni_alg = { - .setkey = crypto_aegis256_aesni_setkey, - .setauthsize = crypto_aegis256_aesni_setauthsize, - .encrypt = crypto_aegis256_aesni_encrypt, - .decrypt = crypto_aegis256_aesni_decrypt, - .init = crypto_aegis256_aesni_init_tfm, - .exit = crypto_aegis256_aesni_exit_tfm, - - .ivsize = AEGIS256_NONCE_SIZE, - .maxauthsize = AEGIS256_MAX_AUTH_SIZE, - .chunksize = AEGIS256_BLOCK_SIZE, - - .base = { - .cra_flags = CRYPTO_ALG_INTERNAL, - .cra_blocksize = 1, - .cra_ctxsize = sizeof(struct aegis_ctx) + - __alignof__(struct aegis_ctx), - .cra_alignmask = 0, - .cra_priority = 400, - - .cra_name = "__aegis256", - .cra_driver_name = "__aegis256-aesni", - - .cra_module = THIS_MODULE, - } -}; - -static struct simd_aead_alg *simd_alg; - -static int __init crypto_aegis256_aesni_module_init(void) -{ - if (!boot_cpu_has(X86_FEATURE_XMM2) || - !boot_cpu_has(X86_FEATURE_AES) || - !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) - return -ENODEV; - - return simd_register_aeads_compat(&crypto_aegis256_aesni_alg, 1, - &simd_alg); -} - -static void __exit crypto_aegis256_aesni_module_exit(void) -{ - simd_unregister_aeads(&crypto_aegis256_aesni_alg, 1, &simd_alg); -} - -module_init(crypto_aegis256_aesni_module_init); -module_exit(crypto_aegis256_aesni_module_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>"); -MODULE_DESCRIPTION("AEGIS-256 AEAD algorithm -- AESNI+SSE2 implementation"); -MODULE_ALIAS_CRYPTO("aegis256"); -MODULE_ALIAS_CRYPTO("aegis256-aesni"); |