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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Copyright(c) 2011-2016 Intel Corporation All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions
; are met:
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in
; the documentation and/or other materials provided with the
; distribution.
; * Neither the name of Intel Corporation nor the names of its
; contributors may be used to endorse or promote products derived
; from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; routine to do a 192 bit CBC AES encrypt
;; clobbers all registers except for ARG1 and rbp
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Updates In and Out pointers at end
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;void aes_cbc_enc_192_x8(void *in,
;; uint8_t *IV,
;; uint8_t keys,
;; void *out,
;; uint64_t len_bytes);
; arg 1: IN: pointer to input (cipher text)
; arg 2: IV: pointer to IV
; arg 3: KEYS: pointer to keys
; arg 4: OUT: pointer to output (plain text)
; arg 5: LEN: length in bytes (multiple of 16)
;; clobbers all registers except for ARG1 and rbp
%include "reg_sizes.asm"
%ifidn __OUTPUT_FORMAT__, elf64
%define IN0 rdi
%define IN rdi
%define IV rsi
%define KEYS rdx
%define OUT rcx
%define LEN r8
%define KEYS0 rdx
%define OUT0 rcx
%define func(x) x:
%define FUNC_SAVE
%define FUNC_RESTORE
%endif
%ifidn __OUTPUT_FORMAT__, win64
%define IN0 rcx
%define IN rcx
%define IV rdx
%define KEYS0 r8
%define OUT0 r9
%define KEYS r8
%define OUT r9
%define LEN r10
%define PS 8
%define stack_size 10*16 + 1*8 ; must be an odd multiple of 8
%define arg(x) [rsp + stack_size + PS + PS*x]
%define func(x) proc_frame x
%macro FUNC_SAVE 0
alloc_stack stack_size
vmovdqa [rsp + 0*16], xmm6
vmovdqa [rsp + 1*16], xmm7
vmovdqa [rsp + 2*16], xmm8
vmovdqa [rsp + 3*16], xmm9
vmovdqa [rsp + 4*16], xmm10
vmovdqa [rsp + 5*16], xmm11
vmovdqa [rsp + 6*16], xmm12
vmovdqa [rsp + 7*16], xmm13
vmovdqa [rsp + 8*16], xmm14
vmovdqa [rsp + 9*16], xmm15
end_prolog
mov LEN, arg(4)
%endmacro
%macro FUNC_RESTORE 0
vmovdqa xmm6, [rsp + 0*16]
vmovdqa xmm7, [rsp + 1*16]
vmovdqa xmm8, [rsp + 2*16]
vmovdqa xmm9, [rsp + 3*16]
vmovdqa xmm10, [rsp + 4*16]
vmovdqa xmm11, [rsp + 5*16]
vmovdqa xmm12, [rsp + 6*16]
vmovdqa xmm13, [rsp + 7*16]
vmovdqa xmm14, [rsp + 8*16]
vmovdqa xmm15, [rsp + 9*16]
add rsp, stack_size
%endmacro
%endif
%define KEY_ROUNDS 13
%define XMM_USAGE (16)
%DEFINE UNROLLED_LOOPS (3)
%define PARALLEL_BLOCKS (UNROLLED_LOOPS)
; instruction set specific operation definitions
%define MOVDQ vmovdqu
%macro PXOR 2
vpxor %1, %1, %2
%endm
%macro AES_ENC 2
vaesenc %1, %1, %2
%endm
%macro AES_ENC_LAST 2
vaesenclast %1, %1, %2
%endm
%include "cbc_common.asm"
mk_global aes_cbc_enc_192_x8, function
func(aes_cbc_enc_192_x8)
endbranch
FUNC_SAVE
mov IDX, 0
FILL_KEY_CACHE CKEY_CNT, FIRST_CKEY, KEYS, MOVDQ
CBC_ENC_INIT FIRST_XDATA, TMP, MOVDQ, PXOR, IV, IN, IDX
main_loop:
CBC_ENC_SUBLOOP KEY_ROUNDS, UNROLLED_LOOPS, FIRST_XDATA, MOVDQ, PXOR, AES_ENC, AES_ENC_LAST, TMP, TMP_CNT, FIRST_CKEY, CKEY_CNT, KEYS, CACHED_KEYS, IN, OUT, IDX, LEN
jne main_loop
done:
FUNC_RESTORE
ret
endproc_frame
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