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;;
;; Copyright (c) 2012-2018, Intel Corporation
;;
;; 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
section .data
default rel
align 16
POLY: dq 0x0000000000000001, 0xC200000000000000
align 64
POLY2:
dq 0x00000001C2000000, 0xC200000000000000
dq 0x00000001C2000000, 0xC200000000000000
dq 0x00000001C2000000, 0xC200000000000000
dq 0x00000001C2000000, 0xC200000000000000
align 16
TWOONE: dq 0x0000000000000001, 0x0000000100000000
;;; @note Order of these constants should not change.
;;; More specifically, ALL_F should follow SHIFT_MASK, and ZERO should follow ALL_F
align 64
SHUF_MASK:
dq 0x08090A0B0C0D0E0F, 0x0001020304050607
dq 0x08090A0B0C0D0E0F, 0x0001020304050607
dq 0x08090A0B0C0D0E0F, 0x0001020304050607
dq 0x08090A0B0C0D0E0F, 0x0001020304050607
align 16
SHIFT_MASK:
dq 0x0706050403020100, 0x0f0e0d0c0b0a0908
ALL_F:
dq 0xffffffffffffffff, 0xffffffffffffffff
ZERO:
dq 0x0000000000000000, 0x0000000000000000
align 16
ONE:
dq 0x0000000000000001, 0x0000000000000000
align 16
TWO:
dq 0x0000000000000002, 0x0000000000000000
align 16
ONEf:
dq 0x0000000000000000, 0x0100000000000000
align 16
TWOf:
dq 0x0000000000000000, 0x0200000000000000
align 64
ddq_add_5678:
dq 0x0000000000000005, 0x0000000000000000
dq 0x0000000000000006, 0x0000000000000000
dq 0x0000000000000007, 0x0000000000000000
dq 0x0000000000000008, 0x0000000000000000
align 64
ddq_addbe_5678:
dq 0x0000000000000000, 0x0500000000000000
dq 0x0000000000000000, 0x0600000000000000
dq 0x0000000000000000, 0x0700000000000000
dq 0x0000000000000000, 0x0800000000000000
align 64
ddq_add_1234:
dq 0x0000000000000001, 0x0000000000000000
dq 0x0000000000000002, 0x0000000000000000
dq 0x0000000000000003, 0x0000000000000000
dq 0x0000000000000004, 0x0000000000000000
align 64
ddq_addbe_1234:
dq 0x0000000000000000, 0x0100000000000000
dq 0x0000000000000000, 0x0200000000000000
dq 0x0000000000000000, 0x0300000000000000
dq 0x0000000000000000, 0x0400000000000000
align 64
ddq_add_4444:
dq 0x0000000000000004, 0x0000000000000000
dq 0x0000000000000004, 0x0000000000000000
dq 0x0000000000000004, 0x0000000000000000
dq 0x0000000000000004, 0x0000000000000000
align 64
ddq_addbe_4444:
dq 0x0000000000000000, 0x0400000000000000
dq 0x0000000000000000, 0x0400000000000000
dq 0x0000000000000000, 0x0400000000000000
dq 0x0000000000000000, 0x0400000000000000
align 64
ddq_add_8888:
dq 0x0000000000000008, 0x0000000000000000
dq 0x0000000000000008, 0x0000000000000000
dq 0x0000000000000008, 0x0000000000000000
dq 0x0000000000000008, 0x0000000000000000
align 64
ddq_addbe_8888:
dq 0x0000000000000000, 0x0800000000000000
dq 0x0000000000000000, 0x0800000000000000
dq 0x0000000000000000, 0x0800000000000000
dq 0x0000000000000000, 0x0800000000000000
align 64
index_to_lane4:
dq 0x0000000000000000, 0x0000000000000001
dq 0x0000000000000002, 0x0000000000000003
dq 0x0000000000000000, 0x0000000000000000
dq 0x0000000000000000, 0x0000000000000000
align 64
byte_len_to_mask_table:
dw 0x0000, 0x0001, 0x0003, 0x0007,
dw 0x000f, 0x001f, 0x003f, 0x007f,
dw 0x00ff, 0x01ff, 0x03ff, 0x07ff,
dw 0x0fff, 0x1fff, 0x3fff, 0x7fff,
dw 0xffff
align 64
byte64_len_to_mask_table:
dq 0x0000000000000000, 0x0000000000000001
dq 0x0000000000000003, 0x0000000000000007
dq 0x000000000000000f, 0x000000000000001f
dq 0x000000000000003f, 0x000000000000007f
dq 0x00000000000000ff, 0x00000000000001ff
dq 0x00000000000003ff, 0x00000000000007ff
dq 0x0000000000000fff, 0x0000000000001fff
dq 0x0000000000003fff, 0x0000000000007fff
dq 0x000000000000ffff, 0x000000000001ffff
dq 0x000000000003ffff, 0x000000000007ffff
dq 0x00000000000fffff, 0x00000000001fffff
dq 0x00000000003fffff, 0x00000000007fffff
dq 0x0000000000ffffff, 0x0000000001ffffff
dq 0x0000000003ffffff, 0x0000000007ffffff
dq 0x000000000fffffff, 0x000000001fffffff
dq 0x000000003fffffff, 0x000000007fffffff
dq 0x00000000ffffffff, 0x00000001ffffffff
dq 0x00000003ffffffff, 0x00000007ffffffff
dq 0x0000000fffffffff, 0x0000001fffffffff
dq 0x0000003fffffffff, 0x0000007fffffffff
dq 0x000000ffffffffff, 0x000001ffffffffff
dq 0x000003ffffffffff, 0x000007ffffffffff
dq 0x00000fffffffffff, 0x00001fffffffffff
dq 0x00003fffffffffff, 0x00007fffffffffff
dq 0x0000ffffffffffff, 0x0001ffffffffffff
dq 0x0003ffffffffffff, 0x0007ffffffffffff
dq 0x000fffffffffffff, 0x001fffffffffffff
dq 0x003fffffffffffff, 0x007fffffffffffff
dq 0x00ffffffffffffff, 0x01ffffffffffffff
dq 0x03ffffffffffffff, 0x07ffffffffffffff
dq 0x0fffffffffffffff, 0x1fffffffffffffff
dq 0x3fffffffffffffff, 0x7fffffffffffffff
dq 0xffffffffffffffff
;;; @note these 2 need to be next one another
;;; - they are used to map lane index onto coresponding bit mask and
;;; NOT version of the bitmask
index_to_lane4_mask:
dw 0x0001, 0x0002, 0x0004, 0x0008
index_to_lane4_not_mask:
dw 0x000e, 0x000d, 0x000b, 0x0007
section .text
;;define the fields of gcm_key_data struct
;; struct gcm_key_data {
;; uint8_t expanded_keys[GCM_ENC_KEY_LEN * GCM_KEY_SETS];
;; uint8_t padding[GCM_ENC_KEY_LEN];
;; uint8_t shifted_hkey_1[GCM_ENC_KEY_LEN]; // store HashKey <<1 mod poly here
;; uint8_t shifted_hkey_2[GCM_ENC_KEY_LEN]; // store HashKey^2 <<1 mod poly here
;; uint8_t shifted_hkey_3[GCM_ENC_KEY_LEN]; // store HashKey^3 <<1 mod poly here
;; uint8_t shifted_hkey_4[GCM_ENC_KEY_LEN]; // store HashKey^4 <<1 mod poly here
;; uint8_t shifted_hkey_5[GCM_ENC_KEY_LEN]; // store HashKey^5 <<1 mod poly here
;; uint8_t shifted_hkey_6[GCM_ENC_KEY_LEN]; // store HashKey^6 <<1 mod poly here
;; uint8_t shifted_hkey_7[GCM_ENC_KEY_LEN]; // store HashKey^7 <<1 mod poly here
;; uint8_t shifted_hkey_8[GCM_ENC_KEY_LEN]; // store HashKey^8 <<1 mod poly here
;; uint8_t shifted_hkey_1_k[GCM_ENC_KEY_LEN]; // store XOR of High 64 bits and Low 64 bits of HashKey <<1 mod poly here (for Karatsuba purposes)
;; uint8_t shifted_hkey_2_k[GCM_ENC_KEY_LEN]; // store XOR of High 64 bits and Low 64 bits of HashKey^2 <<1 mod poly here (for Karatsuba purposes)
;; uint8_t shifted_hkey_3_k[GCM_ENC_KEY_LEN]; // store XOR of High 64 bits and Low 64 bits of HashKey^3 <<1 mod poly here (for Karatsuba purposes)
;; uint8_t shifted_hkey_4_k[GCM_ENC_KEY_LEN]; // store XOR of High 64 bits and Low 64 bits of HashKey^4 <<1 mod poly here (for Karatsuba purposes)
;; uint8_t shifted_hkey_5_k[GCM_ENC_KEY_LEN]; // store XOR of High 64 bits and Low 64 bits of HashKey^5 <<1 mod poly here (for Karatsuba purposes)
;; uint8_t shifted_hkey_6_k[GCM_ENC_KEY_LEN]; // store XOR of High 64 bits and Low 64 bits of HashKey^6 <<1 mod poly here (for Karatsuba purposes)
;; uint8_t shifted_hkey_7_k[GCM_ENC_KEY_LEN]; // store XOR of High 64 bits and Low 64 bits of HashKey^7 <<1 mod poly here (for Karatsuba purposes)
;; uint8_t shifted_hkey_8_k[GCM_ENC_KEY_LEN]; // store XOR of High 64 bits and Low 64 bits of HashKey^8 <<1 mod poly here (for Karatsuba purposes)
;; }
%define Padding (16*15)
%define HashKey_8 (16*16) ; store HashKey^8 <<1 mod poly here
%define HashKey_7 (16*17) ; store HashKey^7 <<1 mod poly here
%define HashKey_6 (16*18) ; store HashKey^6 <<1 mod poly here
%define HashKey_5 (16*19) ; store HashKey^5 <<1 mod poly here
%define HashKey_4 (16*20) ; store HashKey^4 <<1 mod poly here
%define HashKey_3 (16*21) ; store HashKey^3 <<1 mod poly here
%define HashKey_2 (16*22) ; store HashKey^2 <<1 mod poly here
%define HashKey_1 (16*23) ; store HashKey <<1 mod poly here
%define HashKey (16*23) ; store HashKey <<1 mod poly here
%define HashKey_k (16*24) ; store XOR of High 64 bits and Low 64 bits of HashKey <<1 mod poly here (for Karatsuba purposes)
%define HashKey_1_k (16*24) ; store XOR of High 64 bits and Low 64 bits of HashKey <<1 mod poly here (for Karatsuba purposes)
%define HashKey_2_k (16*25) ; 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*26) ; 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*27) ; 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*28) ; 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*29) ; 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*30) ; 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*31) ; store XOR of High 64 bits and Low 64 bits of HashKey^8 <<1 mod poly here (for Karatsuba purposes)
;;define the fields of gcm_context_data struct
;; struct gcm_context_data {
;; // init, update and finalize context data
;; uint8_t aad_hash[GCM_BLOCK_LEN];
;; uint64_t aad_length;
;; uint64_t in_length;
;; uint8_t partial_block_enc_key[GCM_BLOCK_LEN];
;; uint8_t orig_IV[GCM_BLOCK_LEN];
;; uint8_t current_counter[GCM_BLOCK_LEN];
;; uint64_t partial_block_length;
;; };
%define AadHash (16*0) ; store current Hash of data which has been input
%define AadLen (16*1) ; store length of input data which will not be encrypted or decrypted
%define InLen ((16*1)+8); store length of input data which will be encrypted or decrypted
%define PBlockEncKey (16*2) ; encryption key for the partial block at the end of the previous update
%define OrigIV (16*3) ; input IV
%define CurCount (16*4) ; Current counter for generation of encryption key
%define PBlockLen (16*5) ; length of partial block at the end of the previous update
%define reg(q) xmm %+ q
%define regy(q) ymm %+ q
%define regz(q) zmm %+ q
%ifdef WIN_ABI
%xdefine arg1 rcx
%xdefine arg2 rdx
%xdefine arg3 r8
%xdefine arg4 r9
%xdefine arg5 qword [r14 + STACK_OFFSET + 8*5]
%xdefine arg6 qword [r14 + STACK_OFFSET + 8*6]
%xdefine arg7 qword [r14 + STACK_OFFSET + 8*7]
%xdefine arg8 qword [r14 + STACK_OFFSET + 8*8]
%xdefine arg9 qword [r14 + STACK_OFFSET + 8*9]
%xdefine arg10 qword [r14 + STACK_OFFSET + 8*10]
%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]
%xdefine arg10 [r14 + STACK_OFFSET + 8*4]
%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
%define VX512LDR vmovntdqa
%else
%define XLDR movdqu
%define VXLDR vmovdqu
%define VX512LDR vmovdqu64
%endif
;;; Use Non-temporal load/stor
%ifdef NT_ST
%define XSTR movntdq
%define VXSTR vmovntdq
%define VX512STR vmovntdq
%else
%define XSTR movdqu
%define VXSTR vmovdqu
%define VX512STR vmovdqu64
%endif
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