| /* |
| * SSE2 implementation of MORUS-1280 |
| * |
| * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com> |
| * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published |
| * by the Free Software Foundation. |
| */ |
| |
| #include <linux/linkage.h> |
| #include <asm/frame.h> |
| |
| #define SHUFFLE_MASK(i0, i1, i2, i3) \ |
| (i0 | (i1 << 2) | (i2 << 4) | (i3 << 6)) |
| |
| #define MASK2 SHUFFLE_MASK(2, 3, 0, 1) |
| |
| #define STATE0_LO %xmm0 |
| #define STATE0_HI %xmm1 |
| #define STATE1_LO %xmm2 |
| #define STATE1_HI %xmm3 |
| #define STATE2_LO %xmm4 |
| #define STATE2_HI %xmm5 |
| #define STATE3_LO %xmm6 |
| #define STATE3_HI %xmm7 |
| #define STATE4_LO %xmm8 |
| #define STATE4_HI %xmm9 |
| #define KEY_LO %xmm10 |
| #define KEY_HI %xmm11 |
| #define MSG_LO %xmm10 |
| #define MSG_HI %xmm11 |
| #define T0_LO %xmm12 |
| #define T0_HI %xmm13 |
| #define T1_LO %xmm14 |
| #define T1_HI %xmm15 |
| |
| .section .rodata.cst16.morus640_const, "aM", @progbits, 16 |
| .align 16 |
| .Lmorus640_const_0: |
| .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d |
| .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62 |
| .Lmorus640_const_1: |
| .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1 |
| .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd |
| |
| .section .rodata.cst16.morus640_counter, "aM", @progbits, 16 |
| .align 16 |
| .Lmorus640_counter_0: |
| .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 |
| .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f |
| .Lmorus640_counter_1: |
| .byte 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 |
| .byte 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f |
| |
| .text |
| |
| .macro rol1 hi, lo |
| /* |
| * HI_1 | HI_0 || LO_1 | LO_0 |
| * ==> |
| * HI_0 | HI_1 || LO_1 | LO_0 |
| * ==> |
| * HI_0 | LO_1 || LO_0 | HI_1 |
| */ |
| pshufd $MASK2, \hi, \hi |
| movdqa \hi, T0_LO |
| punpcklqdq \lo, T0_LO |
| punpckhqdq \hi, \lo |
| movdqa \lo, \hi |
| movdqa T0_LO, \lo |
| .endm |
| |
| .macro rol2 hi, lo |
| movdqa \lo, T0_LO |
| movdqa \hi, \lo |
| movdqa T0_LO, \hi |
| .endm |
| |
| .macro rol3 hi, lo |
| /* |
| * HI_1 | HI_0 || LO_1 | LO_0 |
| * ==> |
| * HI_0 | HI_1 || LO_1 | LO_0 |
| * ==> |
| * LO_0 | HI_1 || HI_0 | LO_1 |
| */ |
| pshufd $MASK2, \hi, \hi |
| movdqa \lo, T0_LO |
| punpckhqdq \hi, T0_LO |
| punpcklqdq \lo, \hi |
| movdqa T0_LO, \lo |
| .endm |
| |
| .macro morus1280_round s0_l, s0_h, s1_l, s1_h, s2_l, s2_h, s3_l, s3_h, s4_l, s4_h, b, w |
| movdqa \s1_l, T0_LO |
| pand \s2_l, T0_LO |
| pxor T0_LO, \s0_l |
| |
| movdqa \s1_h, T0_LO |
| pand \s2_h, T0_LO |
| pxor T0_LO, \s0_h |
| |
| pxor \s3_l, \s0_l |
| pxor \s3_h, \s0_h |
| |
| movdqa \s0_l, T0_LO |
| psllq $\b, T0_LO |
| psrlq $(64 - \b), \s0_l |
| pxor T0_LO, \s0_l |
| |
| movdqa \s0_h, T0_LO |
| psllq $\b, T0_LO |
| psrlq $(64 - \b), \s0_h |
| pxor T0_LO, \s0_h |
| |
| \w \s3_h, \s3_l |
| .endm |
| |
| /* |
| * __morus1280_update: internal ABI |
| * input: |
| * STATE[0-4] - input state |
| * MSG - message block |
| * output: |
| * STATE[0-4] - output state |
| * changed: |
| * T0 |
| */ |
| __morus1280_update: |
| morus1280_round \ |
| STATE0_LO, STATE0_HI, \ |
| STATE1_LO, STATE1_HI, \ |
| STATE2_LO, STATE2_HI, \ |
| STATE3_LO, STATE3_HI, \ |
| STATE4_LO, STATE4_HI, \ |
| 13, rol1 |
| pxor MSG_LO, STATE1_LO |
| pxor MSG_HI, STATE1_HI |
| morus1280_round \ |
| STATE1_LO, STATE1_HI, \ |
| STATE2_LO, STATE2_HI, \ |
| STATE3_LO, STATE3_HI, \ |
| STATE4_LO, STATE4_HI, \ |
| STATE0_LO, STATE0_HI, \ |
| 46, rol2 |
| pxor MSG_LO, STATE2_LO |
| pxor MSG_HI, STATE2_HI |
| morus1280_round \ |
| STATE2_LO, STATE2_HI, \ |
| STATE3_LO, STATE3_HI, \ |
| STATE4_LO, STATE4_HI, \ |
| STATE0_LO, STATE0_HI, \ |
| STATE1_LO, STATE1_HI, \ |
| 38, rol3 |
| pxor MSG_LO, STATE3_LO |
| pxor MSG_HI, STATE3_HI |
| morus1280_round \ |
| STATE3_LO, STATE3_HI, \ |
| STATE4_LO, STATE4_HI, \ |
| STATE0_LO, STATE0_HI, \ |
| STATE1_LO, STATE1_HI, \ |
| STATE2_LO, STATE2_HI, \ |
| 7, rol2 |
| pxor MSG_LO, STATE4_LO |
| pxor MSG_HI, STATE4_HI |
| morus1280_round \ |
| STATE4_LO, STATE4_HI, \ |
| STATE0_LO, STATE0_HI, \ |
| STATE1_LO, STATE1_HI, \ |
| STATE2_LO, STATE2_HI, \ |
| STATE3_LO, STATE3_HI, \ |
| 4, rol1 |
| ret |
| ENDPROC(__morus1280_update) |
| |
| /* |
| * __morus1280_update_zero: internal ABI |
| * input: |
| * STATE[0-4] - input state |
| * output: |
| * STATE[0-4] - output state |
| * changed: |
| * T0 |
| */ |
| __morus1280_update_zero: |
| morus1280_round \ |
| STATE0_LO, STATE0_HI, \ |
| STATE1_LO, STATE1_HI, \ |
| STATE2_LO, STATE2_HI, \ |
| STATE3_LO, STATE3_HI, \ |
| STATE4_LO, STATE4_HI, \ |
| 13, rol1 |
| morus1280_round \ |
| STATE1_LO, STATE1_HI, \ |
| STATE2_LO, STATE2_HI, \ |
| STATE3_LO, STATE3_HI, \ |
| STATE4_LO, STATE4_HI, \ |
| STATE0_LO, STATE0_HI, \ |
| 46, rol2 |
| morus1280_round \ |
| STATE2_LO, STATE2_HI, \ |
| STATE3_LO, STATE3_HI, \ |
| STATE4_LO, STATE4_HI, \ |
| STATE0_LO, STATE0_HI, \ |
| STATE1_LO, STATE1_HI, \ |
| 38, rol3 |
| morus1280_round \ |
| STATE3_LO, STATE3_HI, \ |
| STATE4_LO, STATE4_HI, \ |
| STATE0_LO, STATE0_HI, \ |
| STATE1_LO, STATE1_HI, \ |
| STATE2_LO, STATE2_HI, \ |
| 7, rol2 |
| morus1280_round \ |
| STATE4_LO, STATE4_HI, \ |
| STATE0_LO, STATE0_HI, \ |
| STATE1_LO, STATE1_HI, \ |
| STATE2_LO, STATE2_HI, \ |
| STATE3_LO, STATE3_HI, \ |
| 4, rol1 |
| ret |
| ENDPROC(__morus1280_update_zero) |
| |
| /* |
| * __load_partial: internal ABI |
| * input: |
| * %rsi - src |
| * %rcx - bytes |
| * output: |
| * MSG - message block |
| * changed: |
| * %r8 |
| * %r9 |
| */ |
| __load_partial: |
| xor %r9d, %r9d |
| pxor MSG_LO, MSG_LO |
| pxor MSG_HI, MSG_HI |
| |
| mov %rcx, %r8 |
| and $0x1, %r8 |
| jz .Lld_partial_1 |
| |
| mov %rcx, %r8 |
| and $0x1E, %r8 |
| add %rsi, %r8 |
| mov (%r8), %r9b |
| |
| .Lld_partial_1: |
| mov %rcx, %r8 |
| and $0x2, %r8 |
| jz .Lld_partial_2 |
| |
| mov %rcx, %r8 |
| and $0x1C, %r8 |
| add %rsi, %r8 |
| shl $16, %r9 |
| mov (%r8), %r9w |
| |
| .Lld_partial_2: |
| mov %rcx, %r8 |
| and $0x4, %r8 |
| jz .Lld_partial_4 |
| |
| mov %rcx, %r8 |
| and $0x18, %r8 |
| add %rsi, %r8 |
| shl $32, %r9 |
| mov (%r8), %r8d |
| xor %r8, %r9 |
| |
| .Lld_partial_4: |
| movq %r9, MSG_LO |
| |
| mov %rcx, %r8 |
| and $0x8, %r8 |
| jz .Lld_partial_8 |
| |
| mov %rcx, %r8 |
| and $0x10, %r8 |
| add %rsi, %r8 |
| pslldq $8, MSG_LO |
| movq (%r8), T0_LO |
| pxor T0_LO, MSG_LO |
| |
| .Lld_partial_8: |
| mov %rcx, %r8 |
| and $0x10, %r8 |
| jz .Lld_partial_16 |
| |
| movdqa MSG_LO, MSG_HI |
| movdqu (%rsi), MSG_LO |
| |
| .Lld_partial_16: |
| ret |
| ENDPROC(__load_partial) |
| |
| /* |
| * __store_partial: internal ABI |
| * input: |
| * %rdx - dst |
| * %rcx - bytes |
| * output: |
| * T0 - message block |
| * changed: |
| * %r8 |
| * %r9 |
| * %r10 |
| */ |
| __store_partial: |
| mov %rcx, %r8 |
| mov %rdx, %r9 |
| |
| cmp $16, %r8 |
| jl .Lst_partial_16 |
| |
| movdqu T0_LO, (%r9) |
| movdqa T0_HI, T0_LO |
| |
| sub $16, %r8 |
| add $16, %r9 |
| |
| .Lst_partial_16: |
| movq T0_LO, %r10 |
| |
| cmp $8, %r8 |
| jl .Lst_partial_8 |
| |
| mov %r10, (%r9) |
| psrldq $8, T0_LO |
| movq T0_LO, %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 $16, %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) |
| |
| /* |
| * void crypto_morus1280_sse2_init(void *state, const void *key, |
| * const void *iv); |
| */ |
| ENTRY(crypto_morus1280_sse2_init) |
| FRAME_BEGIN |
| |
| /* load IV: */ |
| pxor STATE0_HI, STATE0_HI |
| movdqu (%rdx), STATE0_LO |
| /* load key: */ |
| movdqu 0(%rsi), KEY_LO |
| movdqu 16(%rsi), KEY_HI |
| movdqa KEY_LO, STATE1_LO |
| movdqa KEY_HI, STATE1_HI |
| /* load all ones: */ |
| pcmpeqd STATE2_LO, STATE2_LO |
| pcmpeqd STATE2_HI, STATE2_HI |
| /* load all zeros: */ |
| pxor STATE3_LO, STATE3_LO |
| pxor STATE3_HI, STATE3_HI |
| /* load the constant: */ |
| movdqa .Lmorus640_const_0, STATE4_LO |
| movdqa .Lmorus640_const_1, STATE4_HI |
| |
| /* update 16 times with zero: */ |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| call __morus1280_update_zero |
| |
| /* xor-in the key again after updates: */ |
| pxor KEY_LO, STATE1_LO |
| pxor KEY_HI, STATE1_HI |
| |
| /* store the state: */ |
| movdqu STATE0_LO, (0 * 16)(%rdi) |
| movdqu STATE0_HI, (1 * 16)(%rdi) |
| movdqu STATE1_LO, (2 * 16)(%rdi) |
| movdqu STATE1_HI, (3 * 16)(%rdi) |
| movdqu STATE2_LO, (4 * 16)(%rdi) |
| movdqu STATE2_HI, (5 * 16)(%rdi) |
| movdqu STATE3_LO, (6 * 16)(%rdi) |
| movdqu STATE3_HI, (7 * 16)(%rdi) |
| movdqu STATE4_LO, (8 * 16)(%rdi) |
| movdqu STATE4_HI, (9 * 16)(%rdi) |
| |
| FRAME_END |
| ret |
| ENDPROC(crypto_morus1280_sse2_init) |
| |
| /* |
| * void crypto_morus1280_sse2_ad(void *state, const void *data, |
| * unsigned int length); |
| */ |
| ENTRY(crypto_morus1280_sse2_ad) |
| FRAME_BEGIN |
| |
| cmp $32, %rdx |
| jb .Lad_out |
| |
| /* load the state: */ |
| movdqu (0 * 16)(%rdi), STATE0_LO |
| movdqu (1 * 16)(%rdi), STATE0_HI |
| movdqu (2 * 16)(%rdi), STATE1_LO |
| movdqu (3 * 16)(%rdi), STATE1_HI |
| movdqu (4 * 16)(%rdi), STATE2_LO |
| movdqu (5 * 16)(%rdi), STATE2_HI |
| movdqu (6 * 16)(%rdi), STATE3_LO |
| movdqu (7 * 16)(%rdi), STATE3_HI |
| movdqu (8 * 16)(%rdi), STATE4_LO |
| movdqu (9 * 16)(%rdi), STATE4_HI |
| |
| mov %rsi, %r8 |
| and $0xF, %r8 |
| jnz .Lad_u_loop |
| |
| .align 4 |
| .Lad_a_loop: |
| movdqa 0(%rsi), MSG_LO |
| movdqa 16(%rsi), MSG_HI |
| call __morus1280_update |
| sub $32, %rdx |
| add $32, %rsi |
| cmp $32, %rdx |
| jge .Lad_a_loop |
| |
| jmp .Lad_cont |
| .align 4 |
| .Lad_u_loop: |
| movdqu 0(%rsi), MSG_LO |
| movdqu 16(%rsi), MSG_HI |
| call __morus1280_update |
| sub $32, %rdx |
| add $32, %rsi |
| cmp $32, %rdx |
| jge .Lad_u_loop |
| |
| .Lad_cont: |
| /* store the state: */ |
| movdqu STATE0_LO, (0 * 16)(%rdi) |
| movdqu STATE0_HI, (1 * 16)(%rdi) |
| movdqu STATE1_LO, (2 * 16)(%rdi) |
| movdqu STATE1_HI, (3 * 16)(%rdi) |
| movdqu STATE2_LO, (4 * 16)(%rdi) |
| movdqu STATE2_HI, (5 * 16)(%rdi) |
| movdqu STATE3_LO, (6 * 16)(%rdi) |
| movdqu STATE3_HI, (7 * 16)(%rdi) |
| movdqu STATE4_LO, (8 * 16)(%rdi) |
| movdqu STATE4_HI, (9 * 16)(%rdi) |
| |
| .Lad_out: |
| FRAME_END |
| ret |
| ENDPROC(crypto_morus1280_sse2_ad) |
| |
| /* |
| * void crypto_morus1280_sse2_enc(void *state, const void *src, void *dst, |
| * unsigned int length); |
| */ |
| ENTRY(crypto_morus1280_sse2_enc) |
| FRAME_BEGIN |
| |
| cmp $32, %rcx |
| jb .Lenc_out |
| |
| /* load the state: */ |
| movdqu (0 * 16)(%rdi), STATE0_LO |
| movdqu (1 * 16)(%rdi), STATE0_HI |
| movdqu (2 * 16)(%rdi), STATE1_LO |
| movdqu (3 * 16)(%rdi), STATE1_HI |
| movdqu (4 * 16)(%rdi), STATE2_LO |
| movdqu (5 * 16)(%rdi), STATE2_HI |
| movdqu (6 * 16)(%rdi), STATE3_LO |
| movdqu (7 * 16)(%rdi), STATE3_HI |
| movdqu (8 * 16)(%rdi), STATE4_LO |
| movdqu (9 * 16)(%rdi), STATE4_HI |
| |
| mov %rsi, %r8 |
| or %rdx, %r8 |
| and $0xF, %r8 |
| jnz .Lenc_u_loop |
| |
| .align 4 |
| .Lenc_a_loop: |
| movdqa 0(%rsi), MSG_LO |
| movdqa 16(%rsi), MSG_HI |
| movdqa STATE1_LO, T1_LO |
| movdqa STATE1_HI, T1_HI |
| rol3 T1_HI, T1_LO |
| movdqa MSG_LO, T0_LO |
| movdqa MSG_HI, T0_HI |
| pxor T1_LO, T0_LO |
| pxor T1_HI, T0_HI |
| pxor STATE0_LO, T0_LO |
| pxor STATE0_HI, T0_HI |
| movdqa STATE2_LO, T1_LO |
| movdqa STATE2_HI, T1_HI |
| pand STATE3_LO, T1_LO |
| pand STATE3_HI, T1_HI |
| pxor T1_LO, T0_LO |
| pxor T1_HI, T0_HI |
| movdqa T0_LO, 0(%rdx) |
| movdqa T0_HI, 16(%rdx) |
| |
| call __morus1280_update |
| sub $32, %rcx |
| add $32, %rsi |
| add $32, %rdx |
| cmp $32, %rcx |
| jge .Lenc_a_loop |
| |
| jmp .Lenc_cont |
| .align 4 |
| .Lenc_u_loop: |
| movdqu 0(%rsi), MSG_LO |
| movdqu 16(%rsi), MSG_HI |
| movdqa STATE1_LO, T1_LO |
| movdqa STATE1_HI, T1_HI |
| rol3 T1_HI, T1_LO |
| movdqa MSG_LO, T0_LO |
| movdqa MSG_HI, T0_HI |
| pxor T1_LO, T0_LO |
| pxor T1_HI, T0_HI |
| pxor STATE0_LO, T0_LO |
| pxor STATE0_HI, T0_HI |
| movdqa STATE2_LO, T1_LO |
| movdqa STATE2_HI, T1_HI |
| pand STATE3_LO, T1_LO |
| pand STATE3_HI, T1_HI |
| pxor T1_LO, T0_LO |
| pxor T1_HI, T0_HI |
| movdqu T0_LO, 0(%rdx) |
| movdqu T0_HI, 16(%rdx) |
| |
| call __morus1280_update |
| sub $32, %rcx |
| add $32, %rsi |
| add $32, %rdx |
| cmp $32, %rcx |
| jge .Lenc_u_loop |
| |
| .Lenc_cont: |
| /* store the state: */ |
| movdqu STATE0_LO, (0 * 16)(%rdi) |
| movdqu STATE0_HI, (1 * 16)(%rdi) |
| movdqu STATE1_LO, (2 * 16)(%rdi) |
| movdqu STATE1_HI, (3 * 16)(%rdi) |
| movdqu STATE2_LO, (4 * 16)(%rdi) |
| movdqu STATE2_HI, (5 * 16)(%rdi) |
| movdqu STATE3_LO, (6 * 16)(%rdi) |
| movdqu STATE3_HI, (7 * 16)(%rdi) |
| movdqu STATE4_LO, (8 * 16)(%rdi) |
| movdqu STATE4_HI, (9 * 16)(%rdi) |
| |
| .Lenc_out: |
| FRAME_END |
| ret |
| ENDPROC(crypto_morus1280_sse2_enc) |
| |
| /* |
| * void crypto_morus1280_sse2_enc_tail(void *state, const void *src, void *dst, |
| * unsigned int length); |
| */ |
| ENTRY(crypto_morus1280_sse2_enc_tail) |
| FRAME_BEGIN |
| |
| /* load the state: */ |
| movdqu (0 * 16)(%rdi), STATE0_LO |
| movdqu (1 * 16)(%rdi), STATE0_HI |
| movdqu (2 * 16)(%rdi), STATE1_LO |
| movdqu (3 * 16)(%rdi), STATE1_HI |
| movdqu (4 * 16)(%rdi), STATE2_LO |
| movdqu (5 * 16)(%rdi), STATE2_HI |
| movdqu (6 * 16)(%rdi), STATE3_LO |
| movdqu (7 * 16)(%rdi), STATE3_HI |
| movdqu (8 * 16)(%rdi), STATE4_LO |
| movdqu (9 * 16)(%rdi), STATE4_HI |
| |
| /* encrypt message: */ |
| call __load_partial |
| |
| movdqa STATE1_LO, T1_LO |
| movdqa STATE1_HI, T1_HI |
| rol3 T1_HI, T1_LO |
| movdqa MSG_LO, T0_LO |
| movdqa MSG_HI, T0_HI |
| pxor T1_LO, T0_LO |
| pxor T1_HI, T0_HI |
| pxor STATE0_LO, T0_LO |
| pxor STATE0_HI, T0_HI |
| movdqa STATE2_LO, T1_LO |
| movdqa STATE2_HI, T1_HI |
| pand STATE3_LO, T1_LO |
| pand STATE3_HI, T1_HI |
| pxor T1_LO, T0_LO |
| pxor T1_HI, T0_HI |
| |
| call __store_partial |
| |
| call __morus1280_update |
| |
| /* store the state: */ |
| movdqu STATE0_LO, (0 * 16)(%rdi) |
| movdqu STATE0_HI, (1 * 16)(%rdi) |
| movdqu STATE1_LO, (2 * 16)(%rdi) |
| movdqu STATE1_HI, (3 * 16)(%rdi) |
| movdqu STATE2_LO, (4 * 16)(%rdi) |
| movdqu STATE2_HI, (5 * 16)(%rdi) |
| movdqu STATE3_LO, (6 * 16)(%rdi) |
| movdqu STATE3_HI, (7 * 16)(%rdi) |
| movdqu STATE4_LO, (8 * 16)(%rdi) |
| movdqu STATE4_HI, (9 * 16)(%rdi) |
| |
| FRAME_END |
| ret |
| ENDPROC(crypto_morus1280_sse2_enc_tail) |
| |
| /* |
| * void crypto_morus1280_sse2_dec(void *state, const void *src, void *dst, |
| * unsigned int length); |
| */ |
| ENTRY(crypto_morus1280_sse2_dec) |
| FRAME_BEGIN |
| |
| cmp $32, %rcx |
| jb .Ldec_out |
| |
| /* load the state: */ |
| movdqu (0 * 16)(%rdi), STATE0_LO |
| movdqu (1 * 16)(%rdi), STATE0_HI |
| movdqu (2 * 16)(%rdi), STATE1_LO |
| movdqu (3 * 16)(%rdi), STATE1_HI |
| movdqu (4 * 16)(%rdi), STATE2_LO |
| movdqu (5 * 16)(%rdi), STATE2_HI |
| movdqu (6 * 16)(%rdi), STATE3_LO |
| movdqu (7 * 16)(%rdi), STATE3_HI |
| movdqu (8 * 16)(%rdi), STATE4_LO |
| movdqu (9 * 16)(%rdi), STATE4_HI |
| |
| mov %rsi, %r8 |
| or %rdx, %r8 |
| and $0xF, %r8 |
| jnz .Ldec_u_loop |
| |
| .align 4 |
| .Ldec_a_loop: |
| movdqa 0(%rsi), MSG_LO |
| movdqa 16(%rsi), MSG_HI |
| pxor STATE0_LO, MSG_LO |
| pxor STATE0_HI, MSG_HI |
| movdqa STATE1_LO, T1_LO |
| movdqa STATE1_HI, T1_HI |
| rol3 T1_HI, T1_LO |
| pxor T1_LO, MSG_LO |
| pxor T1_HI, MSG_HI |
| movdqa STATE2_LO, T1_LO |
| movdqa STATE2_HI, T1_HI |
| pand STATE3_LO, T1_LO |
| pand STATE3_HI, T1_HI |
| pxor T1_LO, MSG_LO |
| pxor T1_HI, MSG_HI |
| movdqa MSG_LO, 0(%rdx) |
| movdqa MSG_HI, 16(%rdx) |
| |
| call __morus1280_update |
| sub $32, %rcx |
| add $32, %rsi |
| add $32, %rdx |
| cmp $32, %rcx |
| jge .Ldec_a_loop |
| |
| jmp .Ldec_cont |
| .align 4 |
| .Ldec_u_loop: |
| movdqu 0(%rsi), MSG_LO |
| movdqu 16(%rsi), MSG_HI |
| pxor STATE0_LO, MSG_LO |
| pxor STATE0_HI, MSG_HI |
| movdqa STATE1_LO, T1_LO |
| movdqa STATE1_HI, T1_HI |
| rol3 T1_HI, T1_LO |
| pxor T1_LO, MSG_LO |
| pxor T1_HI, MSG_HI |
| movdqa STATE2_LO, T1_LO |
| movdqa STATE2_HI, T1_HI |
| pand STATE3_LO, T1_LO |
| pand STATE3_HI, T1_HI |
| pxor T1_LO, MSG_LO |
| pxor T1_HI, MSG_HI |
| movdqu MSG_LO, 0(%rdx) |
| movdqu MSG_HI, 16(%rdx) |
| |
| call __morus1280_update |
| sub $32, %rcx |
| add $32, %rsi |
| add $32, %rdx |
| cmp $32, %rcx |
| jge .Ldec_u_loop |
| |
| .Ldec_cont: |
| /* store the state: */ |
| movdqu STATE0_LO, (0 * 16)(%rdi) |
| movdqu STATE0_HI, (1 * 16)(%rdi) |
| movdqu STATE1_LO, (2 * 16)(%rdi) |
| movdqu STATE1_HI, (3 * 16)(%rdi) |
| movdqu STATE2_LO, (4 * 16)(%rdi) |
| movdqu STATE2_HI, (5 * 16)(%rdi) |
| movdqu STATE3_LO, (6 * 16)(%rdi) |
| movdqu STATE3_HI, (7 * 16)(%rdi) |
| movdqu STATE4_LO, (8 * 16)(%rdi) |
| movdqu STATE4_HI, (9 * 16)(%rdi) |
| |
| .Ldec_out: |
| FRAME_END |
| ret |
| ENDPROC(crypto_morus1280_sse2_dec) |
| |
| /* |
| * void crypto_morus1280_sse2_dec_tail(void *state, const void *src, void *dst, |
| * unsigned int length); |
| */ |
| ENTRY(crypto_morus1280_sse2_dec_tail) |
| FRAME_BEGIN |
| |
| /* load the state: */ |
| movdqu (0 * 16)(%rdi), STATE0_LO |
| movdqu (1 * 16)(%rdi), STATE0_HI |
| movdqu (2 * 16)(%rdi), STATE1_LO |
| movdqu (3 * 16)(%rdi), STATE1_HI |
| movdqu (4 * 16)(%rdi), STATE2_LO |
| movdqu (5 * 16)(%rdi), STATE2_HI |
| movdqu (6 * 16)(%rdi), STATE3_LO |
| movdqu (7 * 16)(%rdi), STATE3_HI |
| movdqu (8 * 16)(%rdi), STATE4_LO |
| movdqu (9 * 16)(%rdi), STATE4_HI |
| |
| /* decrypt message: */ |
| call __load_partial |
| |
| pxor STATE0_LO, MSG_LO |
| pxor STATE0_HI, MSG_HI |
| movdqa STATE1_LO, T1_LO |
| movdqa STATE1_HI, T1_HI |
| rol3 T1_HI, T1_LO |
| pxor T1_LO, MSG_LO |
| pxor T1_HI, MSG_HI |
| movdqa STATE2_LO, T1_LO |
| movdqa STATE2_HI, T1_HI |
| pand STATE3_LO, T1_LO |
| pand STATE3_HI, T1_HI |
| pxor T1_LO, MSG_LO |
| pxor T1_HI, MSG_HI |
| movdqa MSG_LO, T0_LO |
| movdqa MSG_HI, T0_HI |
| |
| call __store_partial |
| |
| /* mask with byte count: */ |
| movq %rcx, T0_LO |
| punpcklbw T0_LO, T0_LO |
| punpcklbw T0_LO, T0_LO |
| punpcklbw T0_LO, T0_LO |
| punpcklbw T0_LO, T0_LO |
| movdqa T0_LO, T0_HI |
| movdqa .Lmorus640_counter_0, T1_LO |
| movdqa .Lmorus640_counter_1, T1_HI |
| pcmpgtb T1_LO, T0_LO |
| pcmpgtb T1_HI, T0_HI |
| pand T0_LO, MSG_LO |
| pand T0_HI, MSG_HI |
| |
| call __morus1280_update |
| |
| /* store the state: */ |
| movdqu STATE0_LO, (0 * 16)(%rdi) |
| movdqu STATE0_HI, (1 * 16)(%rdi) |
| movdqu STATE1_LO, (2 * 16)(%rdi) |
| movdqu STATE1_HI, (3 * 16)(%rdi) |
| movdqu STATE2_LO, (4 * 16)(%rdi) |
| movdqu STATE2_HI, (5 * 16)(%rdi) |
| movdqu STATE3_LO, (6 * 16)(%rdi) |
| movdqu STATE3_HI, (7 * 16)(%rdi) |
| movdqu STATE4_LO, (8 * 16)(%rdi) |
| movdqu STATE4_HI, (9 * 16)(%rdi) |
| |
| FRAME_END |
| ret |
| ENDPROC(crypto_morus1280_sse2_dec_tail) |
| |
| /* |
| * void crypto_morus1280_sse2_final(void *state, void *tag_xor, |
| * u64 assoclen, u64 cryptlen); |
| */ |
| ENTRY(crypto_morus1280_sse2_final) |
| FRAME_BEGIN |
| |
| /* load the state: */ |
| movdqu (0 * 16)(%rdi), STATE0_LO |
| movdqu (1 * 16)(%rdi), STATE0_HI |
| movdqu (2 * 16)(%rdi), STATE1_LO |
| movdqu (3 * 16)(%rdi), STATE1_HI |
| movdqu (4 * 16)(%rdi), STATE2_LO |
| movdqu (5 * 16)(%rdi), STATE2_HI |
| movdqu (6 * 16)(%rdi), STATE3_LO |
| movdqu (7 * 16)(%rdi), STATE3_HI |
| movdqu (8 * 16)(%rdi), STATE4_LO |
| movdqu (9 * 16)(%rdi), STATE4_HI |
| |
| /* xor state[0] into state[4]: */ |
| pxor STATE0_LO, STATE4_LO |
| pxor STATE0_HI, STATE4_HI |
| |
| /* prepare length block: */ |
| movq %rdx, MSG_LO |
| movq %rcx, T0_LO |
| pslldq $8, T0_LO |
| pxor T0_LO, MSG_LO |
| psllq $3, MSG_LO /* multiply by 8 (to get bit count) */ |
| pxor MSG_HI, MSG_HI |
| |
| /* update state: */ |
| call __morus1280_update |
| call __morus1280_update |
| call __morus1280_update |
| call __morus1280_update |
| call __morus1280_update |
| call __morus1280_update |
| call __morus1280_update |
| call __morus1280_update |
| call __morus1280_update |
| call __morus1280_update |
| |
| /* xor tag: */ |
| movdqu 0(%rsi), MSG_LO |
| movdqu 16(%rsi), MSG_HI |
| |
| pxor STATE0_LO, MSG_LO |
| pxor STATE0_HI, MSG_HI |
| movdqa STATE1_LO, T0_LO |
| movdqa STATE1_HI, T0_HI |
| rol3 T0_HI, T0_LO |
| pxor T0_LO, MSG_LO |
| pxor T0_HI, MSG_HI |
| movdqa STATE2_LO, T0_LO |
| movdqa STATE2_HI, T0_HI |
| pand STATE3_LO, T0_LO |
| pand STATE3_HI, T0_HI |
| pxor T0_LO, MSG_LO |
| pxor T0_HI, MSG_HI |
| |
| movdqu MSG_LO, 0(%rsi) |
| movdqu MSG_HI, 16(%rsi) |
| |
| FRAME_END |
| ret |
| ENDPROC(crypto_morus1280_sse2_final) |
