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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/crypto/isa-l/isa-l_crypto/aes/gcm256_avx_gen2.asm | |
parent | Initial commit. (diff) | |
download | ceph-upstream.tar.xz ceph-upstream.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/crypto/isa-l/isa-l_crypto/aes/gcm256_avx_gen2.asm')
-rw-r--r-- | src/crypto/isa-l/isa-l_crypto/aes/gcm256_avx_gen2.asm | 2036 |
1 files changed, 2036 insertions, 0 deletions
diff --git a/src/crypto/isa-l/isa-l_crypto/aes/gcm256_avx_gen2.asm b/src/crypto/isa-l/isa-l_crypto/aes/gcm256_avx_gen2.asm new file mode 100644 index 000000000..2c10c916e --- /dev/null +++ b/src/crypto/isa-l/isa-l_crypto/aes/gcm256_avx_gen2.asm @@ -0,0 +1,2036 @@ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; 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 +; +; +; References: +; This code was derived and highly optimized from the code described in paper: +; Vinodh Gopal et. al. Optimized Galois-Counter-Mode Implementation on Intel Architecture Processors. August, 2010 +; +; For the shift-based reductions used in this code, we used the method described in paper: +; Shay Gueron, Michael E. Kounavis. Intel Carry-Less Multiplication Instruction and its Usage for Computing the GCM Mode. January, 2010. +; +; +; +; +; Assumptions: +; +; +; +; iv: +; 0 1 2 3 +; 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | Salt (From the SA) | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | Initialization Vector | +; | (This is the sequence number from IPSec header) | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | 0x1 | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; +; +; +; AAD: +; AAD will be padded with 0 to the next 16byte multiple +; for example, assume AAD is a u32 vector +; +; if AAD is 8 bytes: +; AAD[3] = {A0, A1}; +; padded AAD in xmm register = {A1 A0 0 0} +; +; 0 1 2 3 +; 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | SPI (A1) | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | 32-bit Sequence Number (A0) | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | 0x0 | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; +; AAD Format with 32-bit Sequence Number +; +; if AAD is 12 bytes: +; AAD[3] = {A0, A1, A2}; +; padded AAD in xmm register = {A2 A1 A0 0} +; +; 0 1 2 3 +; 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | SPI (A2) | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | 64-bit Extended Sequence Number {A1,A0} | +; | | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; | 0x0 | +; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +; +; AAD Format with 64-bit Extended Sequence Number +; +; +; aadLen: +; Must be a multiple of 4 bytes and from the definition of the spec. +; The code additionally supports any aadLen length. +; +; TLen: +; from the definition of the spec, TLen can only be 8, 12 or 16 bytes. +; +; poly = x^128 + x^127 + x^126 + x^121 + 1 +; throughout the code, one tab and two tab indentations are used. one tab is for GHASH part, two tabs is for AES part. +; + +%include "reg_sizes.asm" +%include "gcm_defines.asm" + +default rel +; need to push 4 registers into stack to maintain +%define STACK_OFFSET 8*4 + +%define TMP2 16*0 ; Temporary storage for AES State 2 (State 1 is stored in an XMM register) +%define TMP3 16*1 ; Temporary storage for AES State 3 +%define TMP4 16*2 ; Temporary storage for AES State 4 +%define TMP5 16*3 ; Temporary storage for AES State 5 +%define TMP6 16*4 ; Temporary storage for AES State 6 +%define TMP7 16*5 ; Temporary storage for AES State 7 +%define TMP8 16*6 ; Temporary storage for AES State 8 + +%define LOCAL_STORAGE 16*7 + +%ifidn __OUTPUT_FORMAT__, win64 + %define XMM_STORAGE 16*10 +%else + %define XMM_STORAGE 0 +%endif + +%define VARIABLE_OFFSET LOCAL_STORAGE + XMM_STORAGE +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; Utility Macros +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0) +; Input: A and B (128-bits each, bit-reflected) +; Output: C = A*B*x mod poly, (i.e. >>1 ) +; To compute GH = GH*HashKey mod poly, give HK = HashKey<<1 mod poly as input +; GH = GH * HK * x mod poly which is equivalent to GH*HashKey mod poly. +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +%macro GHASH_MUL 7 +%define %%GH %1 ; 16 Bytes +%define %%HK %2 ; 16 Bytes +%define %%T1 %3 +%define %%T2 %4 +%define %%T3 %5 +%define %%T4 %6 +%define %%T5 %7 + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + ;; Karatsuba + vpshufd %%T2, %%GH, 01001110b + vpshufd %%T3, %%HK, 01001110b + vpxor %%T2, %%T2, %%GH ; %%T2 = (a1+a0) + vpxor %%T3, %%T3, %%HK ; %%T3 = (b1+b0) + + vpclmulqdq %%T1, %%GH, %%HK, 0x11 ; %%T1 = a1*b1 + vpclmulqdq %%GH, %%HK, 0x00 ; %%GH = a0*b0 + vpclmulqdq %%T2, %%T3, 0x00 ; %%T2 = (a1+a0)*(b1+b0) + vpxor %%T2, %%T2, %%GH + vpxor %%T2, %%T2, %%T1 ; %%T2 = a0*b1+a1*b0 + + vpslldq %%T3, %%T2, 8 ; shift-L %%T3 2 DWs + vpsrldq %%T2, %%T2, 8 ; shift-R %%T2 2 DWs + vpxor %%GH, %%GH, %%T3 + vpxor %%T1, %%T1, %%T2 ; <%%T1:%%GH> = %%GH x %%HK + + ;first phase of the reduction + vpslld %%T2, %%GH, 31 ; packed right shifting << 31 + vpslld %%T3, %%GH, 30 ; packed right shifting shift << 30 + vpslld %%T4, %%GH, 25 ; packed right shifting shift << 25 + + vpxor %%T2, %%T2, %%T3 ; xor the shifted versions + vpxor %%T2, %%T2, %%T4 + + vpsrldq %%T5, %%T2, 4 ; shift-R %%T5 1 DW + + vpslldq %%T2, %%T2, 12 ; shift-L %%T2 3 DWs + vpxor %%GH, %%GH, %%T2 ; first phase of the reduction complete + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + + ;second phase of the reduction + + vpsrld %%T2,%%GH,1 ; packed left shifting >> 1 + vpsrld %%T3,%%GH,2 ; packed left shifting >> 2 + vpsrld %%T4,%%GH,7 ; packed left shifting >> 7 + vpxor %%T2, %%T2, %%T3 ; xor the shifted versions + vpxor %%T2, %%T2, %%T4 + + vpxor %%T2, %%T2, %%T5 + vpxor %%GH, %%GH, %%T2 + vpxor %%GH, %%GH, %%T1 ; the result is in %%GH + + +%endmacro + + +%macro PRECOMPUTE 8 +%define %%GDATA %1 +%define %%HK %2 +%define %%T1 %3 +%define %%T2 %4 +%define %%T3 %5 +%define %%T4 %6 +%define %%T5 %7 +%define %%T6 %8 + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; Haskey_i_k holds XORed values of the low and high parts of the Haskey_i + vmovdqa %%T5, %%HK + + vpshufd %%T1, %%T5, 01001110b + vpxor %%T1, %%T5 + vmovdqu [%%GDATA + HashKey_k], %%T1 + + GHASH_MUL %%T5, %%HK, %%T1, %%T3, %%T4, %%T6, %%T2 ; %%T5 = HashKey^2<<1 mod poly + vmovdqu [%%GDATA + HashKey_2], %%T5 ; [HashKey_2] = HashKey^2<<1 mod poly + vpshufd %%T1, %%T5, 01001110b + vpxor %%T1, %%T5 + vmovdqu [%%GDATA + HashKey_2_k], %%T1 + + GHASH_MUL %%T5, %%HK, %%T1, %%T3, %%T4, %%T6, %%T2 ; %%T5 = HashKey^3<<1 mod poly + vmovdqu [%%GDATA + HashKey_3], %%T5 + vpshufd %%T1, %%T5, 01001110b + vpxor %%T1, %%T5 + vmovdqu [%%GDATA + HashKey_3_k], %%T1 + + GHASH_MUL %%T5, %%HK, %%T1, %%T3, %%T4, %%T6, %%T2 ; %%T5 = HashKey^4<<1 mod poly + vmovdqu [%%GDATA + HashKey_4], %%T5 + vpshufd %%T1, %%T5, 01001110b + vpxor %%T1, %%T5 + vmovdqu [%%GDATA + HashKey_4_k], %%T1 + + GHASH_MUL %%T5, %%HK, %%T1, %%T3, %%T4, %%T6, %%T2 ; %%T5 = HashKey^5<<1 mod poly + vmovdqu [%%GDATA + HashKey_5], %%T5 + vpshufd %%T1, %%T5, 01001110b + vpxor %%T1, %%T5 + vmovdqu [%%GDATA + HashKey_5_k], %%T1 + + GHASH_MUL %%T5, %%HK, %%T1, %%T3, %%T4, %%T6, %%T2 ; %%T5 = HashKey^6<<1 mod poly + vmovdqu [%%GDATA + HashKey_6], %%T5 + vpshufd %%T1, %%T5, 01001110b + vpxor %%T1, %%T5 + vmovdqu [%%GDATA + HashKey_6_k], %%T1 + + GHASH_MUL %%T5, %%HK, %%T1, %%T3, %%T4, %%T6, %%T2 ; %%T5 = HashKey^7<<1 mod poly + vmovdqu [%%GDATA + HashKey_7], %%T5 + vpshufd %%T1, %%T5, 01001110b + vpxor %%T1, %%T5 + vmovdqu [%%GDATA + HashKey_7_k], %%T1 + + GHASH_MUL %%T5, %%HK, %%T1, %%T3, %%T4, %%T6, %%T2 ; %%T5 = HashKey^8<<1 mod poly + vmovdqu [%%GDATA + HashKey_8], %%T5 + vpshufd %%T1, %%T5, 01001110b + vpxor %%T1, %%T5 + vmovdqu [%%GDATA + HashKey_8_k], %%T1 +%endmacro + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; READ_SMALL_DATA_INPUT: Packs xmm register with data when data input is less than 16 bytes. +; Returns 0 if data has length 0. +; Input: The input data (INPUT), that data's length (LENGTH). +; Output: The packed xmm register (OUTPUT). +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +%macro READ_SMALL_DATA_INPUT 6 +%define %%OUTPUT %1 ; %%OUTPUT is an xmm register +%define %%INPUT %2 +%define %%LENGTH %3 +%define %%END_READ_LOCATION %4 ; All this and the lower inputs are temp registers +%define %%COUNTER %5 +%define %%TMP1 %6 + + vpxor %%OUTPUT, %%OUTPUT + mov %%COUNTER, %%LENGTH + mov %%END_READ_LOCATION, %%INPUT + add %%END_READ_LOCATION, %%LENGTH + xor %%TMP1, %%TMP1 + + + cmp %%COUNTER, 8 + jl %%_byte_loop_2 + vpinsrq %%OUTPUT, [%%INPUT],0 ;Read in 8 bytes if they exists + je %%_done + + sub %%COUNTER, 8 + +%%_byte_loop_1: ;Read in data 1 byte at a time while data is left + shl %%TMP1, 8 ;This loop handles when 8 bytes were already read in + dec %%END_READ_LOCATION + mov BYTE(%%TMP1), BYTE [%%END_READ_LOCATION] + dec %%COUNTER + jg %%_byte_loop_1 + vpinsrq %%OUTPUT, %%TMP1, 1 + jmp %%_done + +%%_byte_loop_2: ;Read in data 1 byte at a time while data is left + cmp %%COUNTER, 0 + je %%_done + shl %%TMP1, 8 ;This loop handles when no bytes were already read in + dec %%END_READ_LOCATION + mov BYTE(%%TMP1), BYTE [%%END_READ_LOCATION] + dec %%COUNTER + jg %%_byte_loop_2 + vpinsrq %%OUTPUT, %%TMP1, 0 +%%_done: + +%endmacro ; READ_SMALL_DATA_INPUT + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; CALC_AAD_HASH: Calculates the hash of the data which will not be encrypted. +; Input: The input data (A_IN), that data's length (A_LEN), and the hash key (HASH_KEY). +; Output: The hash of the data (AAD_HASH). +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +%macro CALC_AAD_HASH 14 +%define %%A_IN %1 +%define %%A_LEN %2 +%define %%AAD_HASH %3 +%define %%HASH_KEY %4 +%define %%XTMP1 %5 ; xmm temp reg 5 +%define %%XTMP2 %6 +%define %%XTMP3 %7 +%define %%XTMP4 %8 +%define %%XTMP5 %9 ; xmm temp reg 5 +%define %%T1 %10 ; temp reg 1 +%define %%T2 %11 +%define %%T3 %12 +%define %%T4 %13 +%define %%T5 %14 ; temp reg 5 + + + mov %%T1, %%A_IN ; T1 = AAD + mov %%T2, %%A_LEN ; T2 = aadLen + vpxor %%AAD_HASH, %%AAD_HASH + + cmp %%T2, 16 + jl %%_get_small_AAD_block + +%%_get_AAD_loop16: + + vmovdqu %%XTMP1, [%%T1] + ;byte-reflect the AAD data + vpshufb %%XTMP1, [SHUF_MASK] + vpxor %%AAD_HASH, %%XTMP1 + GHASH_MUL %%AAD_HASH, %%HASH_KEY, %%XTMP1, %%XTMP2, %%XTMP3, %%XTMP4, %%XTMP5 + + sub %%T2, 16 + je %%_CALC_AAD_done + + add %%T1, 16 + cmp %%T2, 16 + jge %%_get_AAD_loop16 + +%%_get_small_AAD_block: + READ_SMALL_DATA_INPUT %%XTMP1, %%T1, %%T2, %%T3, %%T4, %%T5 + ;byte-reflect the AAD data + vpshufb %%XTMP1, [SHUF_MASK] + vpxor %%AAD_HASH, %%XTMP1 + GHASH_MUL %%AAD_HASH, %%HASH_KEY, %%XTMP1, %%XTMP2, %%XTMP3, %%XTMP4, %%XTMP5 + +%%_CALC_AAD_done: + +%endmacro ; CALC_AAD_HASH + + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; PARTIAL_BLOCK: Handles encryption/decryption and the tag partial blocks between update calls. +; Requires the input data be at least 1 byte long. +; Input: gcm_data struct* (GDATA), input text (PLAIN_CYPH_IN), input text length (PLAIN_CYPH_LEN), +; the current data offset (DATA_OFFSET), and whether encoding or decoding (ENC_DEC) +; Output: A cypher of the first partial block (CYPH_PLAIN_OUT), and updated GDATA +; Clobbers rax, r10, r12, r13, r15, xmm0, xmm1, xmm2, xmm3, xmm5, xmm6, xmm9, xmm10, xmm11, xmm13 +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +%macro PARTIAL_BLOCK 7 +%define %%GDATA %1 +%define %%CYPH_PLAIN_OUT %2 +%define %%PLAIN_CYPH_IN %3 +%define %%PLAIN_CYPH_LEN %4 +%define %%DATA_OFFSET %5 +%define %%AAD_HASH %6 +%define %%ENC_DEC %7 + + mov r13, [%%GDATA + PBlockLen] + cmp r13, 0 + je %%_partial_block_done ;Leave Macro if no partial blocks + + cmp %%PLAIN_CYPH_LEN, 16 ;Read in input data without over reading + jl %%_fewer_than_16_bytes + VXLDR xmm1, [%%PLAIN_CYPH_IN] ;If more than 16 bytes of data, just fill the xmm register + jmp %%_data_read + +%%_fewer_than_16_bytes: + lea r10, [%%PLAIN_CYPH_IN + %%DATA_OFFSET] + READ_SMALL_DATA_INPUT xmm1, r10, %%PLAIN_CYPH_LEN, rax, r12, r15 + +%%_data_read: ;Finished reading in data + + + vmovdqu xmm9, [%%GDATA + PBlockEncKey] ;xmm9 = my_ctx_data.partial_block_enc_key + vmovdqu xmm13, [%%GDATA + HashKey] + + lea r12, [SHIFT_MASK] + + add r12, r13 ; adjust the shuffle mask pointer to be able to shift r13 bytes (16-r13 is the number of bytes in plaintext mod 16) + vmovdqu xmm2, [r12] ; get the appropriate shuffle mask + vpshufb xmm9, xmm2 ;shift right r13 bytes + +%ifidn %%ENC_DEC, DEC + vmovdqa xmm3, xmm1 + vpxor xmm9, xmm1 ; Cyphertext XOR E(K, Yn) + + mov r15, %%PLAIN_CYPH_LEN + add r15, r13 + sub r15, 16 ;Set r15 to be the amount of data left in CYPH_PLAIN_IN after filling the block + jge %%_no_extra_mask_1 ;Determine if if partial block is not being filled and shift mask accordingly + sub r12, r15 +%%_no_extra_mask_1: + + vmovdqu xmm1, [r12 + ALL_F-SHIFT_MASK] ; get the appropriate mask to mask out bottom r13 bytes of xmm9 + vpand xmm9, xmm1 ; mask out bottom r13 bytes of xmm9 + + vpand xmm3, xmm1 + vpshufb xmm3, [SHUF_MASK] + vpshufb xmm3, xmm2 + vpxor %%AAD_HASH, xmm3 + + + cmp r15,0 + jl %%_partial_incomplete_1 + + GHASH_MUL %%AAD_HASH, xmm13, xmm0, xmm10, xmm11, xmm5, xmm6 ;GHASH computation for the last <16 Byte block + xor rax,rax + mov [%%GDATA+PBlockLen], rax + jmp %%_dec_done +%%_partial_incomplete_1: + add [%%GDATA+PBlockLen], %%PLAIN_CYPH_LEN +%%_dec_done: + vmovdqu [%%GDATA + AadHash], %%AAD_HASH + +%else + vpxor xmm9, xmm1 ; Plaintext XOR E(K, Yn) + + mov r15, %%PLAIN_CYPH_LEN + add r15, r13 + sub r15, 16 ;Set r15 to be the amount of data left in CYPH_PLAIN_IN after filling the block + jge %%_no_extra_mask_2 ;Determine if if partial block is not being filled and shift mask accordingly + sub r12, r15 +%%_no_extra_mask_2: + + vmovdqu xmm1, [r12 + ALL_F-SHIFT_MASK] ; get the appropriate mask to mask out bottom r13 bytes of xmm9 + vpand xmm9, xmm1 ; mask out bottom r13 bytes of xmm9 + + vpshufb xmm9, [SHUF_MASK] + vpshufb xmm9, xmm2 + vpxor %%AAD_HASH, xmm9 + + cmp r15,0 + jl %%_partial_incomplete_2 + + GHASH_MUL %%AAD_HASH, xmm13, xmm0, xmm10, xmm11, xmm5, xmm6 ;GHASH computation for the last <16 Byte block + xor rax,rax + mov [%%GDATA+PBlockLen], rax + jmp %%_encode_done +%%_partial_incomplete_2: + add [%%GDATA+PBlockLen], %%PLAIN_CYPH_LEN +%%_encode_done: + vmovdqu [%%GDATA + AadHash], %%AAD_HASH + + vpshufb xmm9, [SHUF_MASK] ; shuffle xmm9 back to output as ciphertext + vpshufb xmm9, xmm2 +%endif + + + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + ; output encrypted Bytes + cmp r15,0 + jl %%_partial_fill + mov r12, r13 + mov r13, 16 + sub r13, r12 ; Set r13 to be the number of bytes to write out + jmp %%_count_set +%%_partial_fill: + mov r13, %%PLAIN_CYPH_LEN +%%_count_set: + vmovq rax, xmm9 + cmp r13, 8 + jle %%_less_than_8_bytes_left + + mov [%%CYPH_PLAIN_OUT+ %%DATA_OFFSET], rax + add %%DATA_OFFSET, 8 + vpsrldq xmm9, xmm9, 8 + vmovq rax, xmm9 + sub r13, 8 +%%_less_than_8_bytes_left: + mov BYTE [%%CYPH_PLAIN_OUT + %%DATA_OFFSET], al + add %%DATA_OFFSET, 1 + shr rax, 8 + sub r13, 1 + jne %%_less_than_8_bytes_left + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +%%_partial_block_done: +%endmacro ; PARTIAL_BLOCK + + +; if a = number of total plaintext bytes +; b = floor(a/16) +; %%num_initial_blocks = b mod 8; +; encrypt the initial %%num_initial_blocks blocks and apply ghash on the ciphertext +; %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r14 are used as a pointer only, not modified. +; Updated AAD_HASH is returned in %%T3 + +%macro INITIAL_BLOCKS 23 +%define %%GDATA %1 +%define %%CYPH_PLAIN_OUT %2 +%define %%PLAIN_CYPH_IN %3 +%define %%LENGTH %4 +%define %%DATA_OFFSET %5 +%define %%num_initial_blocks %6 ; can be 0, 1, 2, 3, 4, 5, 6 or 7 +%define %%T1 %7 +%define %%HASH_KEY %8 +%define %%T3 %9 +%define %%T4 %10 +%define %%T5 %11 +%define %%CTR %12 +%define %%XMM1 %13 +%define %%XMM2 %14 +%define %%XMM3 %15 +%define %%XMM4 %16 +%define %%XMM5 %17 +%define %%XMM6 %18 +%define %%XMM7 %19 +%define %%XMM8 %20 +%define %%T6 %21 +%define %%T_key %22 +%define %%ENC_DEC %23 + +%assign i (8-%%num_initial_blocks) + movdqu reg(i), %%XMM8 ;move AAD_HASH to temp reg + ; start AES for %%num_initial_blocks blocks + vmovdqu %%CTR, [%%GDATA + CurCount] ; %%CTR = Y0 + + +%assign i (9-%%num_initial_blocks) +%rep %%num_initial_blocks + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa reg(i), %%CTR + vpshufb reg(i), [SHUF_MASK] ; perform a 16Byte swap +%assign i (i+1) +%endrep + +vmovdqu %%T_key, [%%GDATA+16*0] +%assign i (9-%%num_initial_blocks) +%rep %%num_initial_blocks + vpxor reg(i),%%T_key +%assign i (i+1) +%endrep + +%assign j 1 +%rep 13 ; encrypt N blocks with 13 key rounds +vmovdqu %%T_key, [%%GDATA+16*j] +%assign i (9-%%num_initial_blocks) +%rep %%num_initial_blocks + vaesenc reg(i),%%T_key +%assign i (i+1) +%endrep + +%assign j (j+1) +%endrep + + +vmovdqu %%T_key, [%%GDATA+16*j] ; encrypt with last (14th) key round +%assign i (9-%%num_initial_blocks) +%rep %%num_initial_blocks + vaesenclast reg(i),%%T_key +%assign i (i+1) +%endrep + +%assign i (9-%%num_initial_blocks) +%rep %%num_initial_blocks + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET] + vpxor reg(i), %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET], reg(i) ; write back ciphertext for %%num_initial_blocks blocks + add %%DATA_OFFSET, 16 + %ifidn %%ENC_DEC, DEC + vmovdqa reg(i), %%T1 + %endif + vpshufb reg(i), [SHUF_MASK] ; prepare ciphertext for GHASH computations +%assign i (i+1) +%endrep + + +%assign i (8-%%num_initial_blocks) +%assign j (9-%%num_initial_blocks) + +%rep %%num_initial_blocks + vpxor reg(j), reg(i) + GHASH_MUL reg(j), %%HASH_KEY, %%T1, %%T3, %%T4, %%T5, %%T6 ; apply GHASH on %%num_initial_blocks blocks +%assign i (i+1) +%assign j (j+1) +%endrep + ; %%XMM8 has the current Hash Value + vmovdqa %%T3, %%XMM8 + + cmp %%LENGTH, 128 + jl %%_initial_blocks_done ; no need for precomputed constants + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; Haskey_i_k holds XORed values of the low and high parts of the Haskey_i + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa %%XMM1, %%CTR + vpshufb %%XMM1, [SHUF_MASK] ; perform a 16Byte swap + + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa %%XMM2, %%CTR + vpshufb %%XMM2, [SHUF_MASK] ; perform a 16Byte swap + + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa %%XMM3, %%CTR + vpshufb %%XMM3, [SHUF_MASK] ; perform a 16Byte swap + + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa %%XMM4, %%CTR + vpshufb %%XMM4, [SHUF_MASK] ; perform a 16Byte swap + + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa %%XMM5, %%CTR + vpshufb %%XMM5, [SHUF_MASK] ; perform a 16Byte swap + + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa %%XMM6, %%CTR + vpshufb %%XMM6, [SHUF_MASK] ; perform a 16Byte swap + + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa %%XMM7, %%CTR + vpshufb %%XMM7, [SHUF_MASK] ; perform a 16Byte swap + + vpaddd %%CTR, [ONE] ; INCR Y0 + vmovdqa %%XMM8, %%CTR + vpshufb %%XMM8, [SHUF_MASK] ; perform a 16Byte swap + + vmovdqu %%T_key, [%%GDATA+16*0] + vpxor %%XMM1, %%T_key + vpxor %%XMM2, %%T_key + vpxor %%XMM3, %%T_key + vpxor %%XMM4, %%T_key + vpxor %%XMM5, %%T_key + vpxor %%XMM6, %%T_key + vpxor %%XMM7, %%T_key + vpxor %%XMM8, %%T_key + + +%assign i 1 +%rep 13 ; do early (13) rounds + vmovdqu %%T_key, [%%GDATA+16*i] + vaesenc %%XMM1, %%T_key + vaesenc %%XMM2, %%T_key + vaesenc %%XMM3, %%T_key + vaesenc %%XMM4, %%T_key + vaesenc %%XMM5, %%T_key + vaesenc %%XMM6, %%T_key + vaesenc %%XMM7, %%T_key + vaesenc %%XMM8, %%T_key +%assign i (i+1) +%endrep + + + vmovdqu %%T_key, [%%GDATA+16*i] ; do final key round + vaesenclast %%XMM1, %%T_key + vaesenclast %%XMM2, %%T_key + vaesenclast %%XMM3, %%T_key + vaesenclast %%XMM4, %%T_key + vaesenclast %%XMM5, %%T_key + vaesenclast %%XMM6, %%T_key + vaesenclast %%XMM7, %%T_key + vaesenclast %%XMM8, %%T_key + + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET + 16*0] + vpxor %%XMM1, %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET + 16*0], %%XMM1 + %ifidn %%ENC_DEC, DEC + vmovdqa %%XMM1, %%T1 + %endif + + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET + 16*1] + vpxor %%XMM2, %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET + 16*1], %%XMM2 + %ifidn %%ENC_DEC, DEC + vmovdqa %%XMM2, %%T1 + %endif + + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET + 16*2] + vpxor %%XMM3, %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET + 16*2], %%XMM3 + %ifidn %%ENC_DEC, DEC + vmovdqa %%XMM3, %%T1 + %endif + + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET + 16*3] + vpxor %%XMM4, %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET + 16*3], %%XMM4 + %ifidn %%ENC_DEC, DEC + vmovdqa %%XMM4, %%T1 + %endif + + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET + 16*4] + vpxor %%XMM5, %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET + 16*4], %%XMM5 + %ifidn %%ENC_DEC, DEC + vmovdqa %%XMM5, %%T1 + %endif + + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET + 16*5] + vpxor %%XMM6, %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET + 16*5], %%XMM6 + %ifidn %%ENC_DEC, DEC + vmovdqa %%XMM6, %%T1 + %endif + + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET + 16*6] + vpxor %%XMM7, %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET + 16*6], %%XMM7 + %ifidn %%ENC_DEC, DEC + vmovdqa %%XMM7, %%T1 + %endif + + VXLDR %%T1, [%%PLAIN_CYPH_IN + %%DATA_OFFSET + 16*7] + vpxor %%XMM8, %%T1 + VXSTR [%%CYPH_PLAIN_OUT + %%DATA_OFFSET + 16*7], %%XMM8 + %ifidn %%ENC_DEC, DEC + vmovdqa %%XMM8, %%T1 + %endif + + add %%DATA_OFFSET, 128 + + vpshufb %%XMM1, [SHUF_MASK] ; perform a 16Byte swap + vpxor %%XMM1, %%T3 ; combine GHASHed value with the corresponding ciphertext + vpshufb %%XMM2, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM3, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM4, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM5, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM6, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM7, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM8, [SHUF_MASK] ; perform a 16Byte swap + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +%%_initial_blocks_done: + + +%endmacro + + +; encrypt 8 blocks at a time +; ghash the 8 previously encrypted ciphertext blocks +; %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN are used as pointers only, not modified +; r11 is the data offset value +%macro GHASH_8_ENCRYPT_8_PARALLEL 22 +%define %%GDATA %1 +%define %%CYPH_PLAIN_OUT %2 +%define %%PLAIN_CYPH_IN %3 +%define %%DATA_OFFSET %4 +%define %%T1 %5 +%define %%T2 %6 +%define %%T3 %7 +%define %%T4 %8 +%define %%T5 %9 +%define %%T6 %10 +%define %%CTR %11 +%define %%XMM1 %12 +%define %%XMM2 %13 +%define %%XMM3 %14 +%define %%XMM4 %15 +%define %%XMM5 %16 +%define %%XMM6 %17 +%define %%XMM7 %18 +%define %%XMM8 %19 +%define %%T7 %20 +%define %%loop_idx %21 +%define %%ENC_DEC %22 + + vmovdqa %%T2, %%XMM1 + vmovdqu [rsp + TMP2], %%XMM2 + vmovdqu [rsp + TMP3], %%XMM3 + vmovdqu [rsp + TMP4], %%XMM4 + vmovdqu [rsp + TMP5], %%XMM5 + vmovdqu [rsp + TMP6], %%XMM6 + vmovdqu [rsp + TMP7], %%XMM7 + vmovdqu [rsp + TMP8], %%XMM8 + +%ifidn %%loop_idx, in_order + vpaddd %%XMM1, %%CTR, [ONE] ; INCR CNT + vpaddd %%XMM2, %%XMM1, [ONE] + vpaddd %%XMM3, %%XMM2, [ONE] + vpaddd %%XMM4, %%XMM3, [ONE] + vpaddd %%XMM5, %%XMM4, [ONE] + vpaddd %%XMM6, %%XMM5, [ONE] + vpaddd %%XMM7, %%XMM6, [ONE] + vpaddd %%XMM8, %%XMM7, [ONE] + vmovdqa %%CTR, %%XMM8 + + vpshufb %%XMM1, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM2, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM3, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM4, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM5, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM6, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM7, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM8, [SHUF_MASK] ; perform a 16Byte swap +%else + vpaddd %%XMM1, %%CTR, [ONEf] ; INCR CNT + vpaddd %%XMM2, %%XMM1, [ONEf] + vpaddd %%XMM3, %%XMM2, [ONEf] + vpaddd %%XMM4, %%XMM3, [ONEf] + vpaddd %%XMM5, %%XMM4, [ONEf] + vpaddd %%XMM6, %%XMM5, [ONEf] + vpaddd %%XMM7, %%XMM6, [ONEf] + vpaddd %%XMM8, %%XMM7, [ONEf] + vmovdqa %%CTR, %%XMM8 +%endif + + + + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + + vmovdqu %%T1, [%%GDATA + 16*0] + vpxor %%XMM1, %%T1 + vpxor %%XMM2, %%T1 + vpxor %%XMM3, %%T1 + vpxor %%XMM4, %%T1 + vpxor %%XMM5, %%T1 + vpxor %%XMM6, %%T1 + vpxor %%XMM7, %%T1 + vpxor %%XMM8, %%T1 + + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + + + + + + vmovdqu %%T1, [%%GDATA + 16*1] + vaesenc %%XMM1, %%T1 + vaesenc %%XMM2, %%T1 + vaesenc %%XMM3, %%T1 + vaesenc %%XMM4, %%T1 + vaesenc %%XMM5, %%T1 + vaesenc %%XMM6, %%T1 + vaesenc %%XMM7, %%T1 + vaesenc %%XMM8, %%T1 + + + vmovdqu %%T1, [%%GDATA + 16*2] + vaesenc %%XMM1, %%T1 + vaesenc %%XMM2, %%T1 + vaesenc %%XMM3, %%T1 + vaesenc %%XMM4, %%T1 + vaesenc %%XMM5, %%T1 + vaesenc %%XMM6, %%T1 + vaesenc %%XMM7, %%T1 + vaesenc %%XMM8, %%T1 + + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + + vmovdqu %%T5, [%%GDATA + HashKey_8] + vpclmulqdq %%T4, %%T2, %%T5, 0x11 ; %%T4 = a1*b1 + vpclmulqdq %%T7, %%T2, %%T5, 0x00 ; %%T7 = a0*b0 + + vpshufd %%T6, %%T2, 01001110b + vpxor %%T6, %%T2 + + vmovdqu %%T5, [%%GDATA + HashKey_8_k] + vpclmulqdq %%T6, %%T6, %%T5, 0x00 ; + + + vmovdqu %%T1, [%%GDATA + 16*3] + vaesenc %%XMM1, %%T1 + vaesenc %%XMM2, %%T1 + vaesenc %%XMM3, %%T1 + vaesenc %%XMM4, %%T1 + vaesenc %%XMM5, %%T1 + vaesenc %%XMM6, %%T1 + vaesenc %%XMM7, %%T1 + vaesenc %%XMM8, %%T1 + + vmovdqu %%T1, [rsp + TMP2] + vmovdqu %%T5, [%%GDATA + HashKey_7] + vpclmulqdq %%T3, %%T1, %%T5, 0x11 + vpxor %%T4, %%T4, %%T3 + vpclmulqdq %%T3, %%T1, %%T5, 0x00 + vpxor %%T7, %%T7, %%T3 + + vpshufd %%T3, %%T1, 01001110b + vpxor %%T3, %%T1 + vmovdqu %%T5, [%%GDATA + HashKey_7_k] + vpclmulqdq %%T3, %%T3, %%T5, 0x10 + vpxor %%T6, %%T6, %%T3 + + vmovdqu %%T1, [%%GDATA + 16*4] + vaesenc %%XMM1, %%T1 + vaesenc %%XMM2, %%T1 + vaesenc %%XMM3, %%T1 + vaesenc %%XMM4, %%T1 + vaesenc %%XMM5, %%T1 + vaesenc %%XMM6, %%T1 + vaesenc %%XMM7, %%T1 + vaesenc %%XMM8, %%T1 + + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + vmovdqu %%T1, [rsp + TMP3] + vmovdqu %%T5, [%%GDATA + HashKey_6] + vpclmulqdq %%T3, %%T1, %%T5, 0x11 + vpxor %%T4, %%T4, %%T3 + vpclmulqdq %%T3, %%T1, %%T5, 0x00 + vpxor %%T7, %%T7, %%T3 + + vpshufd %%T3, %%T1, 01001110b + vpxor %%T3, %%T1 + vmovdqu %%T5, [%%GDATA + HashKey_6_k] + vpclmulqdq %%T3, %%T3, %%T5, 0x10 + vpxor %%T6, %%T6, %%T3 + + vmovdqu %%T1, [%%GDATA + 16*5] + vaesenc %%XMM1, %%T1 + vaesenc %%XMM2, %%T1 + vaesenc %%XMM3, %%T1 + vaesenc %%XMM4, %%T1 + vaesenc %%XMM5, %%T1 + vaesenc %%XMM6, %%T1 + vaesenc %%XMM7, %%T1 + vaesenc %%XMM8, %%T1 + + + vmovdqu %%T1, [rsp + TMP4] + vmovdqu %%T5, [%%GDATA + HashKey_5] + vpclmulqdq %%T3, %%T1, %%T5, 0x11 + vpxor %%T4, %%T4, %%T3 + vpclmulqdq %%T3, %%T1, %%T5, 0x00 + vpxor %%T7, %%T7, %%T3 + + vpshufd %%T3, %%T1, 01001110b + vpxor %%T3, %%T1 + vmovdqu %%T5, [%%GDATA + HashKey_5_k] + vpclmulqdq %%T3, %%T3, %%T5, 0x10 + vpxor %%T6, %%T6, %%T3 + + vmovdqu %%T1, [%%GDATA + 16*6] + vaesenc %%XMM1, %%T1 + vaesenc %%XMM2, %%T1 + vaesenc %%XMM3, %%T1 + vaesenc %%XMM4, %%T1 + vaesenc %%XMM5, %%T1 + vaesenc %%XMM6, %%T1 + vaesenc %%XMM7, %%T1 + vaesenc %%XMM8, %%T1 + + vmovdqu %%T1, [rsp + TMP5] + vmovdqu %%T5, [%%GDATA + HashKey_4] + vpclmulqdq %%T3, %%T1, %%T5, 0x11 + vpxor %%T4, %%T4, %%T3 + vpclmulqdq %%T3, %%T1, %%T5, 0x00 + vpxor %%T7, %%T7, %%T3 + + vpshufd %%T3, %%T1, 01001110b + vpxor %%T3, %%T1 + vmovdqu %%T5, [%%GDATA + HashKey_4_k] + vpclmulqdq %%T3, %%T3, %%T5, 0x10 + vpxor %%T6, %%T6, %%T3 + + + vmovdqu %%T1, [%%GDATA + 16*7] + vaesenc %%XMM1, %%T1 + vaesenc %%XMM2, %%T1 + vaesenc %%XMM3, %%T1 + vaesenc %%XMM4, %%T1 + vaesenc %%XMM5, %%T1 + vaesenc %%XMM6, %%T1 + vaesenc %%XMM7, %%T1 + vaesenc %%XMM8, %%T1 + + vmovdqu %%T1, [rsp + TMP6] + vmovdqu %%T5, [%%GDATA + HashKey_3] + vpclmulqdq %%T3, %%T1, %%T5, 0x11 + vpxor %%T4, %%T4, %%T3 + vpclmulqdq %%T3, %%T1, %%T5, 0x00 + vpxor %%T7, %%T7, %%T3 + + vpshufd %%T3, %%T1, 01001110b + vpxor %%T3, %%T1 + vmovdqu %%T5, [%%GDATA + HashKey_3_k] + vpclmulqdq %%T3, %%T3, %%T5, 0x10 + vpxor %%T6, %%T6, %%T3 + + vmovdqu %%T1, [%%GDATA + 16*8] + vaesenc %%XMM1, %%T1 + vaesenc %%XMM2, %%T1 + vaesenc %%XMM3, %%T1 + vaesenc %%XMM4, %%T1 + vaesenc %%XMM5, %%T1 + vaesenc %%XMM6, %%T1 + vaesenc %%XMM7, %%T1 + vaesenc %%XMM8, %%T1 + + vmovdqu %%T1, [rsp + TMP7] + vmovdqu %%T5, [%%GDATA + HashKey_2] + vpclmulqdq %%T3, %%T1, %%T5, 0x11 + vpxor %%T4, %%T4, %%T3 + vpclmulqdq %%T3, %%T1, %%T5, 0x00 + vpxor %%T7, %%T7, %%T3 + + vpshufd %%T3, %%T1, 01001110b + vpxor %%T3, %%T1 + vmovdqu %%T5, [%%GDATA + HashKey_2_k] + vpclmulqdq %%T3, %%T3, %%T5, 0x10 + vpxor %%T6, %%T6, %%T3 + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + + vmovdqu %%T5, [%%GDATA + 16*9] + vaesenc %%XMM1, %%T5 + vaesenc %%XMM2, %%T5 + vaesenc %%XMM3, %%T5 + vaesenc %%XMM4, %%T5 + vaesenc %%XMM5, %%T5 + vaesenc %%XMM6, %%T5 + vaesenc %%XMM7, %%T5 + vaesenc %%XMM8, %%T5 + + vmovdqu %%T1, [rsp + TMP8] + vmovdqu %%T5, [%%GDATA + HashKey] + vpclmulqdq %%T3, %%T1, %%T5, 0x11 + vpxor %%T4, %%T4, %%T3 + vpclmulqdq %%T3, %%T1, %%T5, 0x00 + vpxor %%T7, %%T7, %%T3 + + vpshufd %%T3, %%T1, 01001110b + vpxor %%T3, %%T1 + vmovdqu %%T5, [%%GDATA + HashKey_k] + vpclmulqdq %%T3, %%T3, %%T5, 0x10 + vpxor %%T6, %%T6, %%T3 + + vpxor %%T6, %%T4 + vpxor %%T6, %%T7 + + + vmovdqu %%T5, [%%GDATA + 16*10] + vaesenc %%XMM1, %%T5 + vaesenc %%XMM2, %%T5 + vaesenc %%XMM3, %%T5 + vaesenc %%XMM4, %%T5 + vaesenc %%XMM5, %%T5 + vaesenc %%XMM6, %%T5 + vaesenc %%XMM7, %%T5 + vaesenc %%XMM8, %%T5 + + vmovdqu %%T5, [%%GDATA + 16*11] + + vaesenc %%XMM1, %%T5 + vaesenc %%XMM2, %%T5 + vaesenc %%XMM3, %%T5 + vaesenc %%XMM4, %%T5 + vaesenc %%XMM5, %%T5 + vaesenc %%XMM6, %%T5 + vaesenc %%XMM7, %%T5 + vaesenc %%XMM8, %%T5 + + vmovdqu %%T5, [%%GDATA + 16*12] + vaesenc %%XMM1, %%T5 + vaesenc %%XMM2, %%T5 + vaesenc %%XMM3, %%T5 + vaesenc %%XMM4, %%T5 + vaesenc %%XMM5, %%T5 + vaesenc %%XMM6, %%T5 + vaesenc %%XMM7, %%T5 + vaesenc %%XMM8, %%T5 + + vmovdqu %%T5, [%%GDATA + 16*13] + vaesenc %%XMM1, %%T5 + vaesenc %%XMM2, %%T5 + vaesenc %%XMM3, %%T5 + vaesenc %%XMM4, %%T5 + vaesenc %%XMM5, %%T5 + vaesenc %%XMM6, %%T5 + vaesenc %%XMM7, %%T5 + vaesenc %%XMM8, %%T5 + + vmovdqu %%T5, [%%GDATA + 16*14] + + +%assign i 0 +%assign j 1 +%rep 8 + %ifidn %%ENC_DEC, ENC + + %ifdef NT_LD + VXLDR %%T2, [%%PLAIN_CYPH_IN+%%DATA_OFFSET+16*i] + vpxor %%T2, %%T2, %%T5 + %else + vpxor %%T2, %%T5, [%%PLAIN_CYPH_IN+%%DATA_OFFSET+16*i] + %endif + + vaesenclast reg(j), reg(j), %%T2 + + %else + + VXLDR %%T2, [%%PLAIN_CYPH_IN+%%DATA_OFFSET+16*i] + vpxor %%T2, %%T2, %%T5 + vaesenclast %%T3, reg(j), %%T2 + vpxor reg(j), %%T2, %%T5 + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*i], %%T3 + + %endif + +%assign i (i+1) +%assign j (j+1) +%endrep + + vpslldq %%T3, %%T6, 8 ; shift-L %%T3 2 DWs + vpsrldq %%T6, %%T6, 8 ; shift-R %%T2 2 DWs + vpxor %%T7, %%T3 + vpxor %%T6, %%T4 ; accumulate the results in %%T6:%%T7 + + + ;first phase of the reduction + + vpslld %%T2, %%T7, 31 ; packed right shifting << 31 + vpslld %%T3, %%T7, 30 ; packed right shifting shift << 30 + vpslld %%T4, %%T7, 25 ; packed right shifting shift << 25 + + vpxor %%T2, %%T2, %%T3 ; xor the shifted versions + vpxor %%T2, %%T2, %%T4 + + vpsrldq %%T1, %%T2, 4 ; shift-R %%T1 1 DW + + vpslldq %%T2, %%T2, 12 ; shift-L %%T2 3 DWs + vpxor %%T7, %%T2 ; first phase of the reduction complete + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + %ifidn %%ENC_DEC, ENC + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*0], %%XMM1 ; Write to the Ciphertext buffer + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*1], %%XMM2 ; Write to the Ciphertext buffer + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*2], %%XMM3 ; Write to the Ciphertext buffer + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*3], %%XMM4 ; Write to the Ciphertext buffer + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*4], %%XMM5 ; Write to the Ciphertext buffer + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*5], %%XMM6 ; Write to the Ciphertext buffer + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*6], %%XMM7 ; Write to the Ciphertext buffer + VXSTR [%%CYPH_PLAIN_OUT+%%DATA_OFFSET+16*7], %%XMM8 ; Write to the Ciphertext buffer + %endif + + ;second phase of the reduction + + vpsrld %%T2,%%T7,1 ; packed left shifting >> 1 + vpsrld %%T3,%%T7,2 ; packed left shifting >> 2 + vpsrld %%T4,%%T7,7 ; packed left shifting >> 7 + vpxor %%T2, %%T2,%%T3 ; xor the shifted versions + vpxor %%T2, %%T2,%%T4 + + vpxor %%T2, %%T2, %%T1 + vpxor %%T7, %%T7, %%T2 + vpxor %%T6, %%T6, %%T7 ; the result is in %%T6 + + + + vpshufb %%XMM1, [SHUF_MASK] ; perform a 16Byte swap + vpshufb %%XMM2, [SHUF_MASK] + vpshufb %%XMM3, [SHUF_MASK] + vpshufb %%XMM4, [SHUF_MASK] + vpshufb %%XMM5, [SHUF_MASK] + vpshufb %%XMM6, [SHUF_MASK] + vpshufb %%XMM7, [SHUF_MASK] + vpshufb %%XMM8, [SHUF_MASK] + + + vpxor %%XMM1, %%T6 + +%endmacro + + +; GHASH the last 4 ciphertext blocks. +%macro GHASH_LAST_8 16 +%define %%GDATA %1 +%define %%T1 %2 +%define %%T2 %3 +%define %%T3 %4 +%define %%T4 %5 +%define %%T5 %6 +%define %%T6 %7 +%define %%T7 %8 +%define %%XMM1 %9 +%define %%XMM2 %10 +%define %%XMM3 %11 +%define %%XMM4 %12 +%define %%XMM5 %13 +%define %%XMM6 %14 +%define %%XMM7 %15 +%define %%XMM8 %16 + ;; Karatsuba Method + + + vpshufd %%T2, %%XMM1, 01001110b + vpxor %%T2, %%XMM1 + vmovdqu %%T5, [%%GDATA + HashKey_8] + vpclmulqdq %%T6, %%XMM1, %%T5, 0x11 + vpclmulqdq %%T7, %%XMM1, %%T5, 0x00 + + vmovdqu %%T3, [%%GDATA + HashKey_8_k] + vpclmulqdq %%XMM1, %%T2, %%T3, 0x00 + + + ;;;;;;;;;;;;;;;;;;;;;; + + + vpshufd %%T2, %%XMM2, 01001110b + vpxor %%T2, %%XMM2 + vmovdqu %%T5, [%%GDATA + HashKey_7] + vpclmulqdq %%T4, %%XMM2, %%T5, 0x11 + vpxor %%T6, %%T6, %%T4 + + vpclmulqdq %%T4, %%XMM2, %%T5, 0x00 + vpxor %%T7, %%T7, %%T4 + + vmovdqu %%T3, [%%GDATA + HashKey_7_k] + vpclmulqdq %%T2, %%T2, %%T3, 0x00 + vpxor %%XMM1, %%XMM1, %%T2 + + ;;;;;;;;;;;;;;;;;;;;;; + + + vpshufd %%T2, %%XMM3, 01001110b + vpxor %%T2, %%XMM3 + vmovdqu %%T5, [%%GDATA + HashKey_6] + vpclmulqdq %%T4, %%XMM3, %%T5, 0x11 + vpxor %%T6, %%T6, %%T4 + + vpclmulqdq %%T4, %%XMM3, %%T5, 0x00 + vpxor %%T7, %%T7, %%T4 + + vmovdqu %%T3, [%%GDATA + HashKey_6_k] + vpclmulqdq %%T2, %%T2, %%T3, 0x00 + vpxor %%XMM1, %%XMM1, %%T2 + + ;;;;;;;;;;;;;;;;;;;;;; + + + vpshufd %%T2, %%XMM4, 01001110b + vpxor %%T2, %%XMM4 + vmovdqu %%T5, [%%GDATA + HashKey_5] + vpclmulqdq %%T4, %%XMM4, %%T5, 0x11 + vpxor %%T6, %%T6, %%T4 + + vpclmulqdq %%T4, %%XMM4, %%T5, 0x00 + vpxor %%T7, %%T7, %%T4 + + vmovdqu %%T3, [%%GDATA + HashKey_5_k] + vpclmulqdq %%T2, %%T2, %%T3, 0x00 + vpxor %%XMM1, %%XMM1, %%T2 + + ;;;;;;;;;;;;;;;;;;;;;; + + vpshufd %%T2, %%XMM5, 01001110b + vpxor %%T2, %%XMM5 + vmovdqu %%T5, [%%GDATA + HashKey_4] + vpclmulqdq %%T4, %%XMM5, %%T5, 0x11 + vpxor %%T6, %%T6, %%T4 + + vpclmulqdq %%T4, %%XMM5, %%T5, 0x00 + vpxor %%T7, %%T7, %%T4 + + vmovdqu %%T3, [%%GDATA + HashKey_4_k] + vpclmulqdq %%T2, %%T2, %%T3, 0x00 + vpxor %%XMM1, %%XMM1, %%T2 + + ;;;;;;;;;;;;;;;;;;;;;; + + vpshufd %%T2, %%XMM6, 01001110b + vpxor %%T2, %%XMM6 + vmovdqu %%T5, [%%GDATA + HashKey_3] + + vpclmulqdq %%T4, %%XMM6, %%T5, 0x11 + vpxor %%T6, %%T6, %%T4 + + vpclmulqdq %%T4, %%XMM6, %%T5, 0x00 + vpxor %%T7, %%T7, %%T4 + + vmovdqu %%T3, [%%GDATA + HashKey_3_k] + vpclmulqdq %%T2, %%T2, %%T3, 0x00 + vpxor %%XMM1, %%XMM1, %%T2 + + ;;;;;;;;;;;;;;;;;;;;;; + + vpshufd %%T2, %%XMM7, 01001110b + vpxor %%T2, %%XMM7 + vmovdqu %%T5, [%%GDATA + HashKey_2] + vpclmulqdq %%T4, %%XMM7, %%T5, 0x11 + vpxor %%T6, %%T6, %%T4 + + vpclmulqdq %%T4, %%XMM7, %%T5, 0x00 + vpxor %%T7, %%T7, %%T4 + + vmovdqu %%T3, [%%GDATA + HashKey_2_k] + vpclmulqdq %%T2, %%T2, %%T3, 0x00 + vpxor %%XMM1, %%XMM1, %%T2 + + ;;;;;;;;;;;;;;;;;;;;;; + + vpshufd %%T2, %%XMM8, 01001110b + vpxor %%T2, %%XMM8 + vmovdqu %%T5, [%%GDATA + HashKey] + vpclmulqdq %%T4, %%XMM8, %%T5, 0x11 + vpxor %%T6, %%T6, %%T4 + + vpclmulqdq %%T4, %%XMM8, %%T5, 0x00 + vpxor %%T7, %%T7, %%T4 + + vmovdqu %%T3, [%%GDATA + HashKey_k] + vpclmulqdq %%T2, %%T2, %%T3, 0x00 + + vpxor %%XMM1, %%XMM1, %%T2 + vpxor %%XMM1, %%XMM1, %%T6 + vpxor %%T2, %%XMM1, %%T7 + + + + + vpslldq %%T4, %%T2, 8 + vpsrldq %%T2, %%T2, 8 + + vpxor %%T7, %%T4 + vpxor %%T6, %%T2 ; <%%T6:%%T7> holds the result of the accumulated carry-less multiplications + + ;first phase of the reduction + + vpslld %%T2, %%T7, 31 ; packed right shifting << 31 + vpslld %%T3, %%T7, 30 ; packed right shifting shift << 30 + vpslld %%T4, %%T7, 25 ; packed right shifting shift << 25 + + vpxor %%T2, %%T2, %%T3 ; xor the shifted versions + vpxor %%T2, %%T2, %%T4 + + vpsrldq %%T1, %%T2, 4 ; shift-R %%T1 1 DW + + vpslldq %%T2, %%T2, 12 ; shift-L %%T2 3 DWs + vpxor %%T7, %%T2 ; first phase of the reduction complete + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + + ;second phase of the reduction + + vpsrld %%T2,%%T7,1 ; packed left shifting >> 1 + vpsrld %%T3,%%T7,2 ; packed left shifting >> 2 + vpsrld %%T4,%%T7,7 ; packed left shifting >> 7 + vpxor %%T2, %%T2,%%T3 ; xor the shifted versions + vpxor %%T2, %%T2,%%T4 + + vpxor %%T2, %%T2, %%T1 + vpxor %%T7, %%T7, %%T2 + vpxor %%T6, %%T6, %%T7 ; the result is in %%T6 + + +%endmacro + + +; Encryption of a single block +%macro ENCRYPT_SINGLE_BLOCK 2 +%define %%GDATA %1 +%define %%XMM0 %2 + + vpxor %%XMM0, [%%GDATA+16*0] +%assign i 1 +%rep 13 ; early key rounds (13) + vaesenc %%XMM0, [%%GDATA+16*i] +%assign i (i+1) +%endrep + vaesenclast %%XMM0, [%%GDATA+16*i] ; final key round (14) +%endmacro + + +;; Start of Stack Setup + +%macro FUNC_SAVE 0 + ;; Required for Update/GMC_ENC + push r12 + push r13 + push r14 + push r15 + mov r14, rsp + + sub rsp, VARIABLE_OFFSET + and rsp, ~63 + +%ifidn __OUTPUT_FORMAT__, win64 + ; xmm6:xmm15 need to be maintained for Windows + vmovdqu [rsp + LOCAL_STORAGE + 0*16],xmm6 + vmovdqu [rsp + LOCAL_STORAGE + 1*16],xmm7 + vmovdqu [rsp + LOCAL_STORAGE + 2*16],xmm8 + vmovdqu [rsp + LOCAL_STORAGE + 3*16],xmm9 + vmovdqu [rsp + LOCAL_STORAGE + 4*16],xmm10 + vmovdqu [rsp + LOCAL_STORAGE + 5*16],xmm11 + vmovdqu [rsp + LOCAL_STORAGE + 6*16],xmm12 + vmovdqu [rsp + LOCAL_STORAGE + 7*16],xmm13 + vmovdqu [rsp + LOCAL_STORAGE + 8*16],xmm14 + vmovdqu [rsp + LOCAL_STORAGE + 9*16],xmm15 +%endif +%endmacro + + +%macro FUNC_RESTORE 0 + +%ifidn __OUTPUT_FORMAT__, win64 + vmovdqu xmm15 , [rsp + LOCAL_STORAGE + 9*16] + vmovdqu xmm14 , [rsp + LOCAL_STORAGE + 8*16] + vmovdqu xmm13 , [rsp + LOCAL_STORAGE + 7*16] + vmovdqu xmm12 , [rsp + LOCAL_STORAGE + 6*16] + vmovdqu xmm11 , [rsp + LOCAL_STORAGE + 5*16] + vmovdqu xmm10 , [rsp + LOCAL_STORAGE + 4*16] + vmovdqu xmm9 , [rsp + LOCAL_STORAGE + 3*16] + vmovdqu xmm8 , [rsp + LOCAL_STORAGE + 2*16] + vmovdqu xmm7 , [rsp + LOCAL_STORAGE + 1*16] + vmovdqu xmm6 , [rsp + LOCAL_STORAGE + 0*16] +%endif + +;; Required for Update/GMC_ENC + mov rsp, r14 + pop r15 + pop r14 + pop r13 + pop r12 +%endmacro + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; GCM_INIT initializes a gcm_data struct to prepare for encoding/decoding. +; Input: gcm_data struct* (GDATA), IV, Additional Authentication data (A_IN), Additional +; Data length (A_LEN) +; Output: Updated GDATA with the hash of A_IN (AadHash) and initialized other parts of GDATA. +; Clobbers rax, r10-r13 and xmm0-xmm6 +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +%macro GCM_INIT 4 +%define %%GDATA %1 +%define %%IV %2 +%define %%A_IN %3 +%define %%A_LEN %4 +%define %%AAD_HASH xmm0 +%define %%SUBHASH xmm1 + + + vmovdqu %%SUBHASH, [%%GDATA + HashKey] + + CALC_AAD_HASH %%A_IN, %%A_LEN, %%AAD_HASH, %%SUBHASH, xmm2, xmm3, xmm4, xmm5, xmm6, r10, r11, r12, r13, rax + vpxor xmm2, xmm3 + mov r10, %%A_LEN + + vmovdqu [%%GDATA + AadHash], %%AAD_HASH ; my_ctx_data.aad hash = aad_hash + mov [%%GDATA + AadLen], r10 ; my_ctx_data.aad_length = aad_length + xor r10, r10 + mov [%%GDATA + InLen], r10 ; my_ctx_data.in_length = 0 + mov [%%GDATA + PBlockLen], r10 ; my_ctx_data.partial_block_length = 0 + vmovdqu [%%GDATA + PBlockEncKey], xmm2 ; my_ctx_data.partial_block_enc_key = 0 + mov r10, %%IV + vmovdqu xmm2, [r10] + vmovdqu [%%GDATA + OrigIV], xmm2 ; my_ctx_data.orig_IV = iv + + vpshufb xmm2, [SHUF_MASK] + + vmovdqu [%%GDATA + CurCount], xmm2 ; my_ctx_data.current_counter = iv +%endmacro + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; GCM_ENC_DEC Encodes/Decodes given data. Assumes that the passed gcm_data struct has been +; initialized by GCM_INIT +; Requires the input data be at least 1 byte long because of READ_SMALL_INPUT_DATA. +; Input: gcm_data struct* (GDATA), input text (PLAIN_CYPH_IN), input text length (PLAIN_CYPH_LEN), +; and whether encoding or decoding (ENC_DEC) +; Output: A cypher of the given plain text (CYPH_PLAIN_OUT), and updated GDATA +; Clobbers rax, r10-r15, and xmm0-xmm15 +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +%macro GCM_ENC_DEC 5 +%define %%GDATA %1 +%define %%CYPH_PLAIN_OUT %2 +%define %%PLAIN_CYPH_IN %3 +%define %%PLAIN_CYPH_LEN %4 +%define %%ENC_DEC %5 +%define %%DATA_OFFSET r11 + +; Macro flow: +; calculate the number of 16byte blocks in the message +; process (number of 16byte blocks) mod 8 '%%_initial_num_blocks_is_# .. %%_initial_blocks_encrypted' +; process 8 16 byte blocks at a time until all are done '%%_encrypt_by_8_new .. %%_eight_cipher_left' +; if there is a block of less tahn 16 bytes process it '%%_zero_cipher_left .. %%_multiple_of_16_bytes' + + cmp %%PLAIN_CYPH_LEN, 0 + je %%_multiple_of_16_bytes + + xor %%DATA_OFFSET, %%DATA_OFFSET + add [%%GDATA+InLen], %%PLAIN_CYPH_LEN ;Update length of data processed + vmovdqu xmm13, [%%GDATA + HashKey] ; xmm13 = HashKey + vmovdqu xmm8, [%%GDATA + AadHash] + + + PARTIAL_BLOCK %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, %%PLAIN_CYPH_LEN, %%DATA_OFFSET, xmm8, %%ENC_DEC + + + mov r13, %%PLAIN_CYPH_LEN + sub r13, %%DATA_OFFSET + mov r10, r13 ; save the amount of data left to process in r10 + and r13, -16 ; r13 = r13 - (r13 mod 16) + + mov r12, r13 + shr r12, 4 + and r12, 7 + + jz %%_initial_num_blocks_is_0 + + cmp r12, 7 + je %%_initial_num_blocks_is_7 + cmp r12, 6 + je %%_initial_num_blocks_is_6 + cmp r12, 5 + je %%_initial_num_blocks_is_5 + cmp r12, 4 + je %%_initial_num_blocks_is_4 + cmp r12, 3 + je %%_initial_num_blocks_is_3 + cmp r12, 2 + je %%_initial_num_blocks_is_2 + + jmp %%_initial_num_blocks_is_1 + +%%_initial_num_blocks_is_7: + INITIAL_BLOCKS %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r13, %%DATA_OFFSET, 7, xmm12, xmm13, xmm14, xmm15, xmm11, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm10, xmm0, %%ENC_DEC + sub r13, 16*7 + jmp %%_initial_blocks_encrypted + +%%_initial_num_blocks_is_6: + INITIAL_BLOCKS %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r13, %%DATA_OFFSET, 6, xmm12, xmm13, xmm14, xmm15, xmm11, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm10, xmm0, %%ENC_DEC + sub r13, 16*6 + jmp %%_initial_blocks_encrypted + +%%_initial_num_blocks_is_5: + INITIAL_BLOCKS %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r13, %%DATA_OFFSET, 5, xmm12, xmm13, xmm14, xmm15, xmm11, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm10, xmm0, %%ENC_DEC + sub r13, 16*5 + jmp %%_initial_blocks_encrypted + +%%_initial_num_blocks_is_4: + INITIAL_BLOCKS %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r13, %%DATA_OFFSET, 4, xmm12, xmm13, xmm14, xmm15, xmm11, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm10, xmm0, %%ENC_DEC + sub r13, 16*4 + jmp %%_initial_blocks_encrypted + + +%%_initial_num_blocks_is_3: + INITIAL_BLOCKS %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r13, %%DATA_OFFSET, 3, xmm12, xmm13, xmm14, xmm15, xmm11, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm10, xmm0, %%ENC_DEC + sub r13, 16*3 + jmp %%_initial_blocks_encrypted +%%_initial_num_blocks_is_2: + INITIAL_BLOCKS %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r13, %%DATA_OFFSET, 2, xmm12, xmm13, xmm14, xmm15, xmm11, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm10, xmm0, %%ENC_DEC + sub r13, 16*2 + jmp %%_initial_blocks_encrypted + +%%_initial_num_blocks_is_1: + INITIAL_BLOCKS %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r13, %%DATA_OFFSET, 1, xmm12, xmm13, xmm14, xmm15, xmm11, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm10, xmm0, %%ENC_DEC + sub r13, 16 + jmp %%_initial_blocks_encrypted + +%%_initial_num_blocks_is_0: + INITIAL_BLOCKS %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, r13, %%DATA_OFFSET, 0, xmm12, xmm13, xmm14, xmm15, xmm11, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm10, xmm0, %%ENC_DEC + + +%%_initial_blocks_encrypted: + cmp r13, 0 + je %%_zero_cipher_left + + sub r13, 128 + je %%_eight_cipher_left + + + + + vmovd r15d, xmm9 + and r15d, 255 + vpshufb xmm9, [SHUF_MASK] + + +%%_encrypt_by_8_new: + cmp r15d, 255-8 + jg %%_encrypt_by_8 + + + + add r15b, 8 + GHASH_8_ENCRYPT_8_PARALLEL %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN, %%DATA_OFFSET, xmm0, xmm10, xmm11, xmm12, xmm13, xmm14, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm15, out_order, %%ENC_DEC + add %%DATA_OFFSET, 128 + sub r13, 128 + jne %%_encrypt_by_8_new + + vpshufb xmm9, [SHUF_MASK] + jmp %%_eight_cipher_left + +%%_encrypt_by_8: + vpshufb xmm9, [SHUF_MASK] + add r15b, 8 + GHASH_8_ENCRYPT_8_PARALLEL %%GDATA, %%CYPH_PLAIN_OUT, %%PLAIN_CYPH_IN,%%DATA_OFFSET, xmm0, xmm10, xmm11, xmm12, xmm13, xmm14, xmm9, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm15, in_order, %%ENC_DEC + vpshufb xmm9, [SHUF_MASK] + add %%DATA_OFFSET, 128 + sub r13, 128 + jne %%_encrypt_by_8_new + + vpshufb xmm9, [SHUF_MASK] + + + + +%%_eight_cipher_left: + GHASH_LAST_8 %%GDATA, xmm0, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8 + + +%%_zero_cipher_left: + vmovdqu [%%GDATA + AadHash], xmm14 ; my_ctx_data.aad hash = xmm14 + vmovdqu [%%GDATA + CurCount], xmm9 ; my_ctx_data.current_counter = xmm9 + + mov r13, r10 + and r13, 15 ; r13 = (%%PLAIN_CYPH_LEN mod 16) + + je %%_multiple_of_16_bytes + + mov [%%GDATA + PBlockLen], r13 ; my_ctx_data.partial_blck_length = r13 + ; handle the last <16 Byte block seperately + + vpaddd xmm9, [ONE] ; INCR CNT to get Yn + vmovdqu [%%GDATA + CurCount], xmm9 ; my_ctx_data.current_counter = xmm9 + vpshufb xmm9, [SHUF_MASK] + ENCRYPT_SINGLE_BLOCK %%GDATA, xmm9 ; E(K, Yn) + vmovdqu [%%GDATA + PBlockEncKey], xmm9 ; my_ctx_data.partial_block_enc_key = xmm9 + + cmp %%PLAIN_CYPH_LEN, 16 + jge %%_large_enough_update + + lea r10, [%%PLAIN_CYPH_IN + %%DATA_OFFSET] + READ_SMALL_DATA_INPUT xmm1, r10, r13, r12, r15, rax + lea r12, [SHIFT_MASK + 16] + sub r12, r13 + jmp %%_data_read + +%%_large_enough_update: + sub %%DATA_OFFSET, 16 + add %%DATA_OFFSET, r13 + + vmovdqu xmm1, [%%PLAIN_CYPH_IN+%%DATA_OFFSET] ; receive the last <16 Byte block + + sub %%DATA_OFFSET, r13 + add %%DATA_OFFSET, 16 + + + lea r12, [SHIFT_MASK + 16] + sub r12, r13 ; adjust the shuffle mask pointer to be able to shift 16-r13 bytes (r13 is the number of bytes in plaintext mod 16) + + vmovdqu xmm2, [r12] ; get the appropriate shuffle mask + vpshufb xmm1, xmm2 ; shift right 16-r13 bytes +%%_data_read: + %ifidn %%ENC_DEC, DEC + vmovdqa xmm2, xmm1 + vpxor xmm9, xmm1 ; Plaintext XOR E(K, Yn) + vmovdqu xmm1, [r12 + ALL_F - SHIFT_MASK] ; get the appropriate mask to mask out top 16-r13 bytes of xmm9 + vpand xmm9, xmm1 ; mask out top 16-r13 bytes of xmm9 + vpand xmm2, xmm1 + vpshufb xmm2, [SHUF_MASK] + vpxor xmm14, xmm2 + vmovdqu [%%GDATA + AadHash], xmm14 + + %else + vpxor xmm9, xmm1 ; Plaintext XOR E(K, Yn) + vmovdqu xmm1, [r12 + ALL_F - SHIFT_MASK] ; get the appropriate mask to mask out top 16-r13 bytes of xmm9 + vpand xmm9, xmm1 ; mask out top 16-r13 bytes of xmm9 + vpshufb xmm9, [SHUF_MASK] + vpxor xmm14, xmm9 + vmovdqu [%%GDATA + AadHash], xmm14 + + vpshufb xmm9, [SHUF_MASK] ; shuffle xmm9 back to output as ciphertext + %endif + + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + ; output r13 Bytes + vmovq rax, xmm9 + cmp r13, 8 + jle %%_less_than_8_bytes_left + + mov [%%CYPH_PLAIN_OUT + %%DATA_OFFSET], rax + add %%DATA_OFFSET, 8 + vpsrldq xmm9, xmm9, 8 + vmovq rax, xmm9 + sub r13, 8 + +%%_less_than_8_bytes_left: + mov BYTE [%%CYPH_PLAIN_OUT + %%DATA_OFFSET], al + add %%DATA_OFFSET, 1 + shr rax, 8 + sub r13, 1 + jne %%_less_than_8_bytes_left + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +%%_multiple_of_16_bytes: + + + +%endmacro + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +; GCM_COMPLETE Finishes Encyrption/Decryption of last partial block after GCM_UPDATE finishes. +; Input: A gcm_data struct* (GDATA) and whether encoding or decoding (ENC_DEC). +; Output: Authorization Tag (AUTH_TAG) and Authorization Tag length (AUTH_TAG_LEN) +; Clobbers rax, r10-r12, and xmm0, xmm1, xmm5, xmm6, xmm9, xmm11, xmm14, xmm15 +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +%macro GCM_COMPLETE 4 +%define %%GDATA %1 +%define %%AUTH_TAG %2 +%define %%AUTH_TAG_LEN %3 +%define %%ENC_DEC %4 +%define %%PLAIN_CYPH_LEN rax + + mov r12, [%%GDATA + PBlockLen] + vmovdqu xmm14, [%%GDATA+AadHash] + vmovdqu xmm13, [%%GDATA+HashKey] + + cmp r12, 0 + + je %%_partial_done + + GHASH_MUL xmm14, xmm13, xmm0, xmm10, xmm11, xmm5, xmm6 ;GHASH computation for the last <16 Byte block + vmovdqu [%%GDATA+AadHash], xmm14 + +%%_partial_done: + + mov r12, [%%GDATA + AadLen] ; r12 = aadLen (number of bytes) + mov %%PLAIN_CYPH_LEN, [%%GDATA+InLen] + + shl r12, 3 ; convert into number of bits + vmovd xmm15, r12d ; len(A) in xmm15 + + shl %%PLAIN_CYPH_LEN, 3 ; len(C) in bits (*128) + vmovq xmm1, %%PLAIN_CYPH_LEN + vpslldq xmm15, xmm15, 8 ; xmm15 = len(A)|| 0x0000000000000000 + vpxor xmm15, xmm1 ; xmm15 = len(A)||len(C) + + vpxor xmm14, xmm15 + GHASH_MUL xmm14, xmm13, xmm0, xmm10, xmm11, xmm5, xmm6 ; final GHASH computation + vpshufb xmm14, [SHUF_MASK] ; perform a 16Byte swap + + vmovdqu xmm9, [%%GDATA+OrigIV] ; xmm9 = Y0 + + ENCRYPT_SINGLE_BLOCK %%GDATA, xmm9 ; E(K, Y0) + + vpxor xmm9, xmm14 + + +%%_return_T: + mov r10, %%AUTH_TAG ; r10 = authTag + mov r11, %%AUTH_TAG_LEN ; r11 = auth_tag_len + + cmp r11, 16 + je %%_T_16 + + cmp r11, 12 + je %%_T_12 + +%%_T_8: + vmovq rax, xmm9 + mov [r10], rax + jmp %%_return_T_done +%%_T_12: + vmovq rax, xmm9 + mov [r10], rax + vpsrldq xmm9, xmm9, 8 + vmovd eax, xmm9 + mov [r10 + 8], eax + jmp %%_return_T_done + +%%_T_16: + vmovdqu [r10], xmm9 + +%%_return_T_done: +%endmacro ; GCM_COMPLETE + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;void aesni_gcm256_precomp_avx_gen2 +; (gcm_data *my_ctx_data); +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +global aesni_gcm256_precomp_avx_gen2 +aesni_gcm256_precomp_avx_gen2: + push r12 + push r13 + push r14 + push r15 + + mov r14, rsp + + + + sub rsp, VARIABLE_OFFSET + and rsp, ~63 ; align rsp to 64 bytes + +%ifidn __OUTPUT_FORMAT__, win64 + ; only xmm6 needs to be maintained + vmovdqu [rsp + LOCAL_STORAGE + 0*16],xmm6 +%endif + + vpxor xmm6, xmm6 + ENCRYPT_SINGLE_BLOCK arg1, xmm6 ; xmm6 = HashKey + + vpshufb xmm6, [SHUF_MASK] + ;;;;;;;;;;;;;;; PRECOMPUTATION of HashKey<<1 mod poly from the HashKey;;;;;;;;;;;;;;; + vmovdqa xmm2, xmm6 + vpsllq xmm6, 1 + vpsrlq xmm2, 63 + vmovdqa xmm1, xmm2 + vpslldq xmm2, xmm2, 8 + vpsrldq xmm1, xmm1, 8 + vpor xmm6, xmm2 + ;reduction + vpshufd xmm2, xmm1, 00100100b + vpcmpeqd xmm2, [TWOONE] + vpand xmm2, [POLY] + vpxor xmm6, xmm2 ; xmm6 holds the HashKey<<1 mod poly + ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + vmovdqu [arg1 + HashKey], xmm6 ; store HashKey<<1 mod poly + + + PRECOMPUTE arg1, xmm6, xmm0, xmm1, xmm2, xmm3, xmm4, xmm5 + +%ifidn __OUTPUT_FORMAT__, win64 + vmovdqu xmm6, [rsp + LOCAL_STORAGE + 0*16] +%endif + mov rsp, r14 + + pop r15 + pop r14 + pop r13 + pop r12 +ret + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;void aesni_gcm256_init_avx_gen2( +; gcm_data *my_ctx_data, +; u8 *iv, /* Pre-counter block j0: 4 byte salt (from Security Association) concatenated with 8 byte Initialisation Vector (from IPSec ESP Payload) concatenated with 0x00000001. 16-byte pointer. */ +; const u8 *aad, /* Additional Authentication Data (AAD)*/ +; u64 aad_len); /* Length of AAD in bytes (must be a multiple of 4 bytes). */ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +global aesni_gcm256_init_avx_gen2 +aesni_gcm256_init_avx_gen2: + push r12 + push r13 +%ifidn __OUTPUT_FORMAT__, win64 + ; xmm6:xmm15 need to be maintained for Windows + sub rsp, 1*16 + vmovdqu [rsp + 0*16],xmm6 +%endif + + GCM_INIT arg1, arg2, arg3, arg4 + +%ifidn __OUTPUT_FORMAT__, win64 + vmovdqu xmm6 , [rsp + 0*16] + add rsp, 1*16 +%endif + pop r13 + pop r12 + +ret + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;void aesni_gcm256_enc_update_avx_gen2( +; gcm_data *my_ctx_data, +; u8 *out, /* Ciphertext output. Encrypt in-place is allowed. */ +; const u8 *in, /* Plaintext input */ +; u64 plaintext_len); /* Length of data in Bytes for encryption. must be a multiple of 16 bytes*/ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +global aesni_gcm256_enc_update_avx_gen2 +aesni_gcm256_enc_update_avx_gen2: + + FUNC_SAVE + + GCM_ENC_DEC arg1, arg2, arg3, arg4, ENC + + FUNC_RESTORE + + ret + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;void aesni_gcm256_dec_update_avx_gen2( +; gcm_data *my_ctx_data, +; u8 *out, /* Plaintext output. Encrypt in-place is allowed. */ +; const u8 *in, /* Cyphertext input */ +; u64 plaintext_len); /* Length of data in Bytes for encryption. must be a multiple of 16 bytes*/ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +global aesni_gcm256_dec_update_avx_gen2 +aesni_gcm256_dec_update_avx_gen2: + + FUNC_SAVE + + GCM_ENC_DEC arg1, arg2, arg3, arg4, DEC + + FUNC_RESTORE + + ret + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;void aesni_gcm256_enc_finalize_avx_gen2( +; gcm_data *my_ctx_data, +; u8 *auth_tag, /* Authenticated Tag output. */ +; u64 auth_tag_len); /* Authenticated Tag Length in bytes. Valid values are 16 (most likely), 12 or 8. */ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +global aesni_gcm256_enc_finalize_avx_gen2 +aesni_gcm256_enc_finalize_avx_gen2: + + push r12 + +%ifidn __OUTPUT_FORMAT__, win64 + ; xmm6:xmm15 need to be maintained for Windows + sub rsp, 5*16 + vmovdqu [rsp + 0*16],xmm6 + vmovdqu [rsp + 1*16],xmm9 + vmovdqu [rsp + 2*16],xmm11 + vmovdqu [rsp + 3*16],xmm14 + vmovdqu [rsp + 4*16],xmm15 +%endif + GCM_COMPLETE arg1, arg2, arg3, ENC + +%ifidn __OUTPUT_FORMAT__, win64 + vmovdqu xmm15 , [rsp + 4*16] + vmovdqu xmm14 , [rsp + 3*16] + vmovdqu xmm11 , [rsp + 2*16] + vmovdqu xmm9 , [rsp + 1*16] + vmovdqu xmm6 , [rsp + 0*16] + add rsp, 5*16 +%endif + + pop r12 +ret + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;void aesni_gcm256_dec_finalize_avx_gen2( +; gcm_data *my_ctx_data, +; u8 *auth_tag, /* Authenticated Tag output. */ +; u64 auth_tag_len); /* Authenticated Tag Length in bytes. Valid values are 16 (most likely), 12 or 8. */ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +global aesni_gcm256_dec_finalize_avx_gen2 +aesni_gcm256_dec_finalize_avx_gen2: + + push r12 + +%ifidn __OUTPUT_FORMAT__, win64 + ; xmm6:xmm15 need to be maintained for Windows + sub rsp, 5*16 + vmovdqu [rsp + 0*16],xmm6 + vmovdqu [rsp + 1*16],xmm9 + vmovdqu [rsp + 2*16],xmm11 + vmovdqu [rsp + 3*16],xmm14 + vmovdqu [rsp + 4*16],xmm15 +%endif + GCM_COMPLETE arg1, arg2, arg3, DEC + +%ifidn __OUTPUT_FORMAT__, win64 + vmovdqu xmm15 , [rsp + 4*16] + vmovdqu xmm14 , [rsp + 3*16] + vmovdqu xmm11 , [rsp + 2*16] + vmovdqu xmm9 , [rsp + 1*16] + vmovdqu xmm6 , [rsp + 0*16] + add rsp, 5*16 +%endif + + pop r12 +ret + + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;void aesni_gcm256_enc_avx_gen2( +; gcm_data *my_ctx_data, +; u8 *out, /* Ciphertext output. Encrypt in-place is allowed. */ +; const u8 *in, /* Plaintext input */ +; u64 plaintext_len, /* Length of data in Bytes for encryption. */ +; u8 *iv, /* Pre-counter block j0: 4 byte salt (from Security Association) concatenated with 8 byte Initialisation Vector (from IPSec ESP Payload) concatenated with 0x00000001. 16-byte pointer. */ +; const u8 *aad, /* Additional Authentication Data (AAD)*/ +; u64 aad_len, /* Length of AAD in bytes (must be a multiple of 4 bytes). */ +; u8 *auth_tag, /* Authenticated Tag output. */ +; u64 auth_tag_len); /* Authenticated Tag Length in bytes. Valid values are 16 (most likely), 12 or 8. */ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +global aesni_gcm256_enc_avx_gen2 +aesni_gcm256_enc_avx_gen2: + + FUNC_SAVE + + GCM_INIT arg1, arg5, arg6, arg7 + + GCM_ENC_DEC arg1, arg2, arg3, arg4, ENC + + GCM_COMPLETE arg1, arg8, arg9, ENC + + FUNC_RESTORE + + ret + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;void aesni_gcm256_dec_avx_gen2( +; gcm_data *my_ctx_data, +; u8 *out, /* Plaintext output. Decrypt in-place is allowed. */ +; const u8 *in, /* Ciphertext input */ +; u64 plaintext_len, /* Length of data in Bytes for encryption. */ +; u8 *iv, /* Pre-counter block j0: 4 byte salt (from Security Association) concatenated with 8 byte Initialisation Vector (from IPSec ESP Payload) concatenated with 0x00000001. 16-byte pointer. */ +; const u8 *aad, /* Additional Authentication Data (AAD)*/ +; u64 aad_len, /* Length of AAD in bytes (must be a multiple of 4 bytes). */ +; u8 *auth_tag, /* Authenticated Tag output. */ +; u64 auth_tag_len); /* Authenticated Tag Length in bytes. Valid values are 16 (most likely), 12 or 8. */ +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +global aesni_gcm256_dec_avx_gen2 +aesni_gcm256_dec_avx_gen2: + + FUNC_SAVE + + GCM_INIT arg1, arg5, arg6, arg7 + + GCM_ENC_DEC arg1, arg2, arg3, arg4, DEC + + GCM_COMPLETE arg1, arg8, arg9, DEC + + FUNC_RESTORE + + ret |