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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.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; Authors:
; Erdinc Ozturk
; Vinodh Gopal
; James Guilford
;;;;;;
; Remove the need for different yasm commandlines on Linux vs Windows
%ifidn __OUTPUT_FORMAT__, elf64
%define LINUX
%else
%define WIN_ABI
%endif
section .data
align 16
POLY dq 0x0000000000000001, 0xC200000000000000
POLY2 dq 0x00000001C2000000, 0xC200000000000000
TWOONE dq 0x0000000000000001, 0x0000000100000000
; order of these constants should not change.
; more specifically, ALL_F should follow SHIFT_MASK, and ZERO should follow ALL_F
SHUF_MASK dq 0x08090A0B0C0D0E0F, 0x0001020304050607
SHIFT_MASK dq 0x0706050403020100, 0x0f0e0d0c0b0a0908
ALL_F dq 0xffffffffffffffff, 0xffffffffffffffff
ZERO dq 0x0000000000000000, 0x0000000000000000
ONE dq 0x0000000000000001, 0x0000000000000000
ONEf dq 0x0000000000000000, 0x0100000000000000
section .text
;;define the fields of gcm_data struct
;typedef struct gcm_data
;{
; u8 expanded_keys[16*15];
; u8 shifted_hkey_1[16]; // store HashKey <<1 mod poly here
; u8 shifted_hkey_2[16]; // store HashKey^2 <<1 mod poly here
; u8 shifted_hkey_3[16]; // store HashKey^3 <<1 mod poly here
; u8 shifted_hkey_4[16]; // store HashKey^4 <<1 mod poly here
; u8 shifted_hkey_5[16]; // store HashKey^5 <<1 mod poly here
; u8 shifted_hkey_6[16]; // store HashKey^6 <<1 mod poly here
; u8 shifted_hkey_7[16]; // store HashKey^7 <<1 mod poly here
; u8 shifted_hkey_8[16]; // store HashKey^8 <<1 mod poly here
; u8 shifted_hkey_1_k[16]; // store XOR of High 64 bits and Low 64 bits of HashKey <<1 mod poly here (for Karatsuba purposes)
; u8 shifted_hkey_2_k[16]; // store XOR of High 64 bits and Low 64 bits of HashKey^2 <<1 mod poly here (for Karatsuba purposes)
; u8 shifted_hkey_3_k[16]; // store XOR of High 64 bits and Low 64 bits of HashKey^3 <<1 mod poly here (for Karatsuba purposes)
; u8 shifted_hkey_4_k[16]; // store XOR of High 64 bits and Low 64 bits of HashKey^4 <<1 mod poly here (for Karatsuba purposes)
; u8 shifted_hkey_5_k[16]; // store XOR of High 64 bits and Low 64 bits of HashKey^5 <<1 mod poly here (for Karatsuba purposes)
; u8 shifted_hkey_6_k[16]; // store XOR of High 64 bits and Low 64 bits of HashKey^6 <<1 mod poly here (for Karatsuba purposes)
; u8 shifted_hkey_7_k[16]; // store XOR of High 64 bits and Low 64 bits of HashKey^7 <<1 mod poly here (for Karatsuba purposes)
; u8 shifted_hkey_8_k[16]; // store XOR of High 64 bits and Low 64 bits of HashKey^8 <<1 mod poly here (for Karatsuba purposes)
;} gcm_data;
%define HashKey 16*15 ; store HashKey <<1 mod poly here
%define HashKey_2 16*16 ; store HashKey^2 <<1 mod poly here
%define HashKey_3 16*17 ; store HashKey^3 <<1 mod poly here
%define HashKey_4 16*18 ; store HashKey^4 <<1 mod poly here
%define HashKey_5 16*19 ; store HashKey^5 <<1 mod poly here
%define HashKey_6 16*20 ; store HashKey^6 <<1 mod poly here
%define HashKey_7 16*21 ; store HashKey^7 <<1 mod poly here
%define HashKey_8 16*22 ; store HashKey^8 <<1 mod poly here
%define HashKey_k 16*23 ; store XOR of High 64 bits and Low 64 bits of HashKey <<1 mod poly here (for Karatsuba purposes)
%define HashKey_2_k 16*24 ; store XOR of High 64 bits and Low 64 bits of HashKey^2 <<1 mod poly here (for Karatsuba purposes)
%define HashKey_3_k 16*25 ; store XOR of High 64 bits and Low 64 bits of HashKey^3 <<1 mod poly here (for Karatsuba purposes)
%define HashKey_4_k 16*26 ; store XOR of High 64 bits and Low 64 bits of HashKey^4 <<1 mod poly here (for Karatsuba purposes)
%define HashKey_5_k 16*27 ; store XOR of High 64 bits and Low 64 bits of HashKey^5 <<1 mod poly here (for Karatsuba purposes)
%define HashKey_6_k 16*28 ; store XOR of High 64 bits and Low 64 bits of HashKey^6 <<1 mod poly here (for Karatsuba purposes)
%define HashKey_7_k 16*29 ; store XOR of High 64 bits and Low 64 bits of HashKey^7 <<1 mod poly here (for Karatsuba purposes)
%define HashKey_8_k 16*30 ; store XOR of High 64 bits and Low 64 bits of HashKey^8 <<1 mod poly here (for Karatsuba purposes)
%define AadHash 16*31 ; store current Hash of data which has been input
%define AadLen 16*32 ; store length of input data which will not be encrypted or decrypted
%define InLen 16*32+8 ; store length of input data which will be encrypted or decrypted
%define PBlockEncKey 16*33 ; encryption key for the partial block at the end of the previous update
%define OrigIV 16*34 ; input IV
%define CurCount 16*35 ; Current counter for generation of encryption key
%define PBlockLen 16*36 ; length of partial block at the end of the previous update
%define reg(q) xmm %+ q
%ifnidn __OUTPUT_FORMAT__, elf64
%xdefine arg1 rcx
%xdefine arg2 rdx
%xdefine arg3 r8
%xdefine arg4 r9
%xdefine arg5 [r14 + STACK_OFFSET + 8*5]
%xdefine arg6 [r14 + STACK_OFFSET + 8*6]
%xdefine arg7 [r14 + STACK_OFFSET + 8*7]
%xdefine arg8 [r14 + STACK_OFFSET + 8*8]
%xdefine arg9 [r14 + STACK_OFFSET + 8*9]
%else
%xdefine arg1 rdi
%xdefine arg2 rsi
%xdefine arg3 rdx
%xdefine arg4 rcx
%xdefine arg5 r8
%xdefine arg6 r9
%xdefine arg7 [r14 + STACK_OFFSET + 8*1]
%xdefine arg8 [r14 + STACK_OFFSET + 8*2]
%xdefine arg9 [r14 + STACK_OFFSET + 8*3]
%endif
%ifdef NT_LDST
%define NT_LD
%define NT_ST
%endif
;;; Use Non-temporal load/stor
%ifdef NT_LD
%define XLDR movntdqa
%define VXLDR vmovntdqa
%else
%define XLDR movdqu
%define VXLDR vmovdqu
%endif
;;; Use Non-temporal load/stor
%ifdef NT_ST
%define XSTR movntdq
%define VXSTR vmovntdq
%else
%define XSTR movdqu
%define VXSTR vmovdqu
%endif
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