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hackney
3.0.0
4.7.2
4.7.1
4.7.0
4.6.1
4.6.0
4.5.2
4.5.1
4.5.0
4.4.5
4.4.3
4.4.2
4.4.1
4.4.0
4.3.0
4.2.3
4.2.2
4.2.1
4.2.0
4.1.0
4.0.3
4.0.2
4.0.1
4.0.0
3.2.1
3.2.0
3.1.2
3.1.1
3.1.0
3.0.3
3.0.2
3.0.1
3.0.0
retired
2.0.1
2.0.0
2.0.0-beta.1
1.25.0
1.24.1
1.24.0
1.23.0
1.22.0
1.21.0
1.20.1
1.20.0
1.19.1
1.19.0
1.18.2
1.18.1
1.18.0
1.17.4
1.17.3
1.17.2
1.17.1
1.17.0
1.16.0
1.15.2
1.15.1
1.15.0
1.14.3
1.14.2
1.14.0
1.13.0
1.12.1
1.12.0
1.11.0
1.10.1
1.10.0
1.9.0
1.8.6
1.8.5
1.8.4
1.8.3
1.8.2
1.8.0
1.7.1
1.7.0
1.6.6
retired
1.6.5
1.6.4
retired
1.6.3
1.6.2
1.6.1
1.6.0
1.5.7
1.5.6
1.5.5
1.5.4
1.5.3
1.5.2
1.5.1
1.5.0
1.4.10
1.4.8
1.4.7
1.4.6
1.4.5
1.4.4
1.4.3
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1.3.1
1.3.0
1.2.0
1.1.0
1.0.6
1.0.5
1.0.2
1.0.1
0.15.2
0.15.0
0.14.3
0.14.2
0.14.1
0.14.0
0.13.1
Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support
Retired package: Release invalid - Use 3.0.1 instead
Security advisory:
This version has known vulnerabilities.
View advisories
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Files
c_src/boringssl/gen/bcm/aesv8-gcm-armv8-linux.S
// This file is generated from a similarly-named Perl script in the BoringSSL
// source tree. Do not edit by hand.
#include <openssl/asm_base.h>
#if !defined(OPENSSL_NO_ASM) && defined(OPENSSL_AARCH64) && defined(__ELF__)
#if __ARM_MAX_ARCH__ >= 8
.arch armv8-a+crypto
.text
.globl aes_gcm_enc_kernel
.hidden aes_gcm_enc_kernel
.type aes_gcm_enc_kernel,%function
.align 4
aes_gcm_enc_kernel:
AARCH64_SIGN_LINK_REGISTER
stp x29, x30, [sp, #-128]!
mov x29, sp
stp x19, x20, [sp, #16]
mov x16, x4
mov x8, x5
stp x21, x22, [sp, #32]
stp x23, x24, [sp, #48]
stp d8, d9, [sp, #64]
stp d10, d11, [sp, #80]
stp d12, d13, [sp, #96]
stp d14, d15, [sp, #112]
ldr w17, [x8, #240]
add x19, x8, x17, lsl #4 // borrow input_l1 for last key
ldp x13, x14, [x19] // load round N keys
ldr q31, [x19, #-16] // load round N-1 keys
add x4, x0, x1, lsr #3 // end_input_ptr
lsr x5, x1, #3 // byte_len
mov x15, x5
ldp x10, x11, [x16] // ctr96_b64, ctr96_t32
ld1 { v0.16b}, [x16] // special case vector load initial counter so we can start first AES block as quickly as possible
sub x5, x5, #1 // byte_len - 1
ldr q18, [x8, #0] // load rk0
and x5, x5, #0xffffffffffffffc0 // number of bytes to be processed in main loop (at least 1 byte must be handled by tail)
ldr q25, [x8, #112] // load rk7
add x5, x5, x0
lsr x12, x11, #32
fmov d2, x10 // CTR block 2
orr w11, w11, w11
rev w12, w12 // rev_ctr32
fmov d1, x10 // CTR block 1
aese v0.16b, v18.16b
aesmc v0.16b, v0.16b // AES block 0 - round 0
add w12, w12, #1 // increment rev_ctr32
rev w9, w12 // CTR block 1
fmov d3, x10 // CTR block 3
orr x9, x11, x9, lsl #32 // CTR block 1
add w12, w12, #1 // CTR block 1
ldr q19, [x8, #16] // load rk1
fmov v1.d[1], x9 // CTR block 1
rev w9, w12 // CTR block 2
add w12, w12, #1 // CTR block 2
orr x9, x11, x9, lsl #32 // CTR block 2
ldr q20, [x8, #32] // load rk2
fmov v2.d[1], x9 // CTR block 2
rev w9, w12 // CTR block 3
aese v0.16b, v19.16b
aesmc v0.16b, v0.16b // AES block 0 - round 1
orr x9, x11, x9, lsl #32 // CTR block 3
fmov v3.d[1], x9 // CTR block 3
aese v1.16b, v18.16b
aesmc v1.16b, v1.16b // AES block 1 - round 0
ldr q21, [x8, #48] // load rk3
aese v0.16b, v20.16b
aesmc v0.16b, v0.16b // AES block 0 - round 2
ldr q24, [x8, #96] // load rk6
aese v2.16b, v18.16b
aesmc v2.16b, v2.16b // AES block 2 - round 0
ldr q23, [x8, #80] // load rk5
aese v1.16b, v19.16b
aesmc v1.16b, v1.16b // AES block 1 - round 1
ldr q14, [x6, #48] // load h3l | h3h
ext v14.16b, v14.16b, v14.16b, #8
aese v3.16b, v18.16b
aesmc v3.16b, v3.16b // AES block 3 - round 0
aese v2.16b, v19.16b
aesmc v2.16b, v2.16b // AES block 2 - round 1
ldr q22, [x8, #64] // load rk4
aese v1.16b, v20.16b
aesmc v1.16b, v1.16b // AES block 1 - round 2
ldr q13, [x6, #32] // load h2l | h2h
ext v13.16b, v13.16b, v13.16b, #8
aese v3.16b, v19.16b
aesmc v3.16b, v3.16b // AES block 3 - round 1
ldr q30, [x8, #192] // load rk12
aese v2.16b, v20.16b
aesmc v2.16b, v2.16b // AES block 2 - round 2
ldr q15, [x6, #80] // load h4l | h4h
ext v15.16b, v15.16b, v15.16b, #8
aese v1.16b, v21.16b
aesmc v1.16b, v1.16b // AES block 1 - round 3
ldr q29, [x8, #176] // load rk11
aese v3.16b, v20.16b
aesmc v3.16b, v3.16b // AES block 3 - round 2
ldr q26, [x8, #128] // load rk8
aese v2.16b, v21.16b
aesmc v2.16b, v2.16b // AES block 2 - round 3
add w12, w12, #1 // CTR block 3
aese v0.16b, v21.16b
aesmc v0.16b, v0.16b // AES block 0 - round 3
aese v3.16b, v21.16b
aesmc v3.16b, v3.16b // AES block 3 - round 3
ld1 { v11.16b}, [x3]
ext v11.16b, v11.16b, v11.16b, #8
rev64 v11.16b, v11.16b
aese v2.16b, v22.16b
aesmc v2.16b, v2.16b // AES block 2 - round 4
aese v0.16b, v22.16b
aesmc v0.16b, v0.16b // AES block 0 - round 4
aese v1.16b, v22.16b
aesmc v1.16b, v1.16b // AES block 1 - round 4
aese v3.16b, v22.16b
aesmc v3.16b, v3.16b // AES block 3 - round 4
cmp x17, #12 // setup flags for AES-128/192/256 check
aese v0.16b, v23.16b
aesmc v0.16b, v0.16b // AES block 0 - round 5
aese v1.16b, v23.16b
aesmc v1.16b, v1.16b // AES block 1 - round 5
aese v3.16b, v23.16b
aesmc v3.16b, v3.16b // AES block 3 - round 5
aese v2.16b, v23.16b
aesmc v2.16b, v2.16b // AES block 2 - round 5
aese v1.16b, v24.16b
aesmc v1.16b, v1.16b // AES block 1 - round 6
trn2 v17.2d, v14.2d, v15.2d // h4l | h3l
aese v3.16b, v24.16b
aesmc v3.16b, v3.16b // AES block 3 - round 6
ldr q27, [x8, #144] // load rk9
aese v0.16b, v24.16b
aesmc v0.16b, v0.16b // AES block 0 - round 6
ldr q12, [x6] // load h1l | h1h
ext v12.16b, v12.16b, v12.16b, #8
aese v2.16b, v24.16b
aesmc v2.16b, v2.16b // AES block 2 - round 6
ldr q28, [x8, #160] // load rk10
aese v1.16b, v25.16b
aesmc v1.16b, v1.16b // AES block 1 - round 7
trn1 v9.2d, v14.2d, v15.2d // h4h | h3h
aese v0.16b, v25.16b
aesmc v0.16b, v0.16b // AES block 0 - round 7
aese v2.16b, v25.16b
aesmc v2.16b, v2.16b // AES block 2 - round 7
aese v3.16b, v25.16b
aesmc v3.16b, v3.16b // AES block 3 - round 7
trn2 v16.2d, v12.2d, v13.2d // h2l | h1l
aese v1.16b, v26.16b
aesmc v1.16b, v1.16b // AES block 1 - round 8
aese v2.16b, v26.16b
aesmc v2.16b, v2.16b // AES block 2 - round 8
aese v3.16b, v26.16b
aesmc v3.16b, v3.16b // AES block 3 - round 8
aese v0.16b, v26.16b
aesmc v0.16b, v0.16b // AES block 0 - round 8
b.lt .Lenc_finish_first_blocks // branch if AES-128
aese v1.16b, v27.16b
aesmc v1.16b, v1.16b // AES block 1 - round 9
aese v2.16b, v27.16b
aesmc v2.16b, v2.16b // AES block 2 - round 9
aese v3.16b, v27.16b
aesmc v3.16b, v3.16b // AES block 3 - round 9
aese v0.16b, v27.16b
aesmc v0.16b, v0.16b // AES block 0 - round 9
aese v1.16b, v28.16b
aesmc v1.16b, v1.16b // AES block 1 - round 10
aese v2.16b, v28.16b
aesmc v2.16b, v2.16b // AES block 2 - round 10
aese v3.16b, v28.16b
aesmc v3.16b, v3.16b // AES block 3 - round 10
aese v0.16b, v28.16b
aesmc v0.16b, v0.16b // AES block 0 - round 10
b.eq .Lenc_finish_first_blocks // branch if AES-192
aese v1.16b, v29.16b
aesmc v1.16b, v1.16b // AES block 1 - round 11
aese v2.16b, v29.16b
aesmc v2.16b, v2.16b // AES block 2 - round 11
aese v0.16b, v29.16b
aesmc v0.16b, v0.16b // AES block 0 - round 11
aese v3.16b, v29.16b
aesmc v3.16b, v3.16b // AES block 3 - round 11
aese v1.16b, v30.16b
aesmc v1.16b, v1.16b // AES block 1 - round 12
aese v2.16b, v30.16b
aesmc v2.16b, v2.16b // AES block 2 - round 12
aese v0.16b, v30.16b
aesmc v0.16b, v0.16b // AES block 0 - round 12
aese v3.16b, v30.16b
aesmc v3.16b, v3.16b // AES block 3 - round 12
.Lenc_finish_first_blocks:
cmp x0, x5 // check if we have <= 4 blocks
eor v17.16b, v17.16b, v9.16b // h4k | h3k
aese v2.16b, v31.16b // AES block 2 - round N-1
trn1 v8.2d, v12.2d, v13.2d // h2h | h1h
aese v1.16b, v31.16b // AES block 1 - round N-1
aese v0.16b, v31.16b // AES block 0 - round N-1
aese v3.16b, v31.16b // AES block 3 - round N-1
eor v16.16b, v16.16b, v8.16b // h2k | h1k
b.ge .Lenc_tail // handle tail
ldp x19, x20, [x0, #16] // AES block 1 - load plaintext
rev w9, w12 // CTR block 4
ldp x6, x7, [x0, #0] // AES block 0 - load plaintext
ldp x23, x24, [x0, #48] // AES block 3 - load plaintext
ldp x21, x22, [x0, #32] // AES block 2 - load plaintext
add x0, x0, #64 // AES input_ptr update
eor x19, x19, x13 // AES block 1 - round N low
eor x20, x20, x14 // AES block 1 - round N high
fmov d5, x19 // AES block 1 - mov low
eor x6, x6, x13 // AES block 0 - round N low
eor x7, x7, x14 // AES block 0 - round N high
eor x24, x24, x14 // AES block 3 - round N high
fmov d4, x6 // AES block 0 - mov low
cmp x0, x5 // check if we have <= 8 blocks
fmov v4.d[1], x7 // AES block 0 - mov high
eor x23, x23, x13 // AES block 3 - round N low
eor x21, x21, x13 // AES block 2 - round N low
fmov v5.d[1], x20 // AES block 1 - mov high
fmov d6, x21 // AES block 2 - mov low
add w12, w12, #1 // CTR block 4
orr x9, x11, x9, lsl #32 // CTR block 4
fmov d7, x23 // AES block 3 - mov low
eor x22, x22, x14 // AES block 2 - round N high
fmov v6.d[1], x22 // AES block 2 - mov high
eor v4.16b, v4.16b, v0.16b // AES block 0 - result
fmov d0, x10 // CTR block 4
fmov v0.d[1], x9 // CTR block 4
rev w9, w12 // CTR block 5
add w12, w12, #1 // CTR block 5
eor v5.16b, v5.16b, v1.16b // AES block 1 - result
fmov d1, x10 // CTR block 5
orr x9, x11, x9, lsl #32 // CTR block 5
fmov v1.d[1], x9 // CTR block 5
rev w9, w12 // CTR block 6
st1 { v4.16b}, [x2], #16 // AES block 0 - store result
fmov v7.d[1], x24 // AES block 3 - mov high
orr x9, x11, x9, lsl #32 // CTR block 6
eor v6.16b, v6.16b, v2.16b // AES block 2 - result
st1 { v5.16b}, [x2], #16 // AES block 1 - store result
add w12, w12, #1 // CTR block 6
fmov d2, x10 // CTR block 6
fmov v2.d[1], x9 // CTR block 6
st1 { v6.16b}, [x2], #16 // AES block 2 - store result
rev w9, w12 // CTR block 7
orr x9, x11, x9, lsl #32 // CTR block 7
eor v7.16b, v7.16b, v3.16b // AES block 3 - result
st1 { v7.16b}, [x2], #16 // AES block 3 - store result
b.ge .Lenc_prepretail // do prepretail
.Lenc_main_loop: // main loop start
aese v0.16b, v18.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 0
rev64 v4.16b, v4.16b // GHASH block 4k (only t0 is free)
aese v1.16b, v18.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 0
fmov d3, x10 // CTR block 4k+3
aese v2.16b, v18.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 0
ext v11.16b, v11.16b, v11.16b, #8 // PRE 0
aese v0.16b, v19.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 1
fmov v3.d[1], x9 // CTR block 4k+3
aese v1.16b, v19.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 1
ldp x23, x24, [x0, #48] // AES block 4k+7 - load plaintext
aese v2.16b, v19.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 1
ldp x21, x22, [x0, #32] // AES block 4k+6 - load plaintext
aese v0.16b, v20.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 2
eor v4.16b, v4.16b, v11.16b // PRE 1
aese v1.16b, v20.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 2
aese v3.16b, v18.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 0
eor x23, x23, x13 // AES block 4k+7 - round N low
aese v0.16b, v21.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 3
mov d10, v17.d[1] // GHASH block 4k - mid
pmull2 v9.1q, v4.2d, v15.2d // GHASH block 4k - high
eor x22, x22, x14 // AES block 4k+6 - round N high
mov d8, v4.d[1] // GHASH block 4k - mid
aese v3.16b, v19.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 1
rev64 v5.16b, v5.16b // GHASH block 4k+1 (t0 and t1 free)
aese v0.16b, v22.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 4
pmull v11.1q, v4.1d, v15.1d // GHASH block 4k - low
eor v8.8b, v8.8b, v4.8b // GHASH block 4k - mid
aese v2.16b, v20.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 2
aese v0.16b, v23.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 5
rev64 v7.16b, v7.16b // GHASH block 4k+3 (t0, t1, t2 and t3 free)
pmull2 v4.1q, v5.2d, v14.2d // GHASH block 4k+1 - high
pmull v10.1q, v8.1d, v10.1d // GHASH block 4k - mid
rev64 v6.16b, v6.16b // GHASH block 4k+2 (t0, t1, and t2 free)
pmull v8.1q, v5.1d, v14.1d // GHASH block 4k+1 - low
eor v9.16b, v9.16b, v4.16b // GHASH block 4k+1 - high
mov d4, v5.d[1] // GHASH block 4k+1 - mid
aese v1.16b, v21.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 3
aese v3.16b, v20.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 2
eor v11.16b, v11.16b, v8.16b // GHASH block 4k+1 - low
aese v2.16b, v21.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 3
aese v1.16b, v22.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 4
mov d8, v6.d[1] // GHASH block 4k+2 - mid
aese v3.16b, v21.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 3
eor v4.8b, v4.8b, v5.8b // GHASH block 4k+1 - mid
aese v2.16b, v22.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 4
aese v0.16b, v24.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 6
eor v8.8b, v8.8b, v6.8b // GHASH block 4k+2 - mid
aese v3.16b, v22.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 4
pmull v4.1q, v4.1d, v17.1d // GHASH block 4k+1 - mid
aese v0.16b, v25.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 7
aese v3.16b, v23.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 5
ins v8.d[1], v8.d[0] // GHASH block 4k+2 - mid
aese v1.16b, v23.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 5
aese v0.16b, v26.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 8
aese v2.16b, v23.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 5
aese v1.16b, v24.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 6
eor v10.16b, v10.16b, v4.16b // GHASH block 4k+1 - mid
pmull2 v4.1q, v6.2d, v13.2d // GHASH block 4k+2 - high
pmull v5.1q, v6.1d, v13.1d // GHASH block 4k+2 - low
aese v1.16b, v25.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 7
pmull v6.1q, v7.1d, v12.1d // GHASH block 4k+3 - low
eor v9.16b, v9.16b, v4.16b // GHASH block 4k+2 - high
aese v3.16b, v24.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 6
ldp x19, x20, [x0, #16] // AES block 4k+5 - load plaintext
aese v1.16b, v26.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 8
mov d4, v7.d[1] // GHASH block 4k+3 - mid
aese v2.16b, v24.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 6
eor v11.16b, v11.16b, v5.16b // GHASH block 4k+2 - low
pmull2 v8.1q, v8.2d, v16.2d // GHASH block 4k+2 - mid
pmull2 v5.1q, v7.2d, v12.2d // GHASH block 4k+3 - high
eor v4.8b, v4.8b, v7.8b // GHASH block 4k+3 - mid
aese v2.16b, v25.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 7
eor x19, x19, x13 // AES block 4k+5 - round N low
aese v2.16b, v26.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 8
eor v10.16b, v10.16b, v8.16b // GHASH block 4k+2 - mid
aese v3.16b, v25.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 7
eor x21, x21, x13 // AES block 4k+6 - round N low
aese v3.16b, v26.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 8
movi v8.8b, #0xc2
pmull v4.1q, v4.1d, v16.1d // GHASH block 4k+3 - mid
eor v9.16b, v9.16b, v5.16b // GHASH block 4k+3 - high
cmp x17, #12 // setup flags for AES-128/192/256 check
fmov d5, x19 // AES block 4k+5 - mov low
ldp x6, x7, [x0, #0] // AES block 4k+4 - load plaintext
b.lt .Lenc_main_loop_continue // branch if AES-128
aese v1.16b, v27.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 9
aese v0.16b, v27.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 9
aese v2.16b, v27.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 9
aese v3.16b, v27.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 9
aese v0.16b, v28.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 10
aese v1.16b, v28.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 10
aese v2.16b, v28.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 10
aese v3.16b, v28.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 10
b.eq .Lenc_main_loop_continue // branch if AES-192
aese v0.16b, v29.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 11
aese v1.16b, v29.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 11
aese v2.16b, v29.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 11
aese v3.16b, v29.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 11
aese v1.16b, v30.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 12
aese v0.16b, v30.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 12
aese v2.16b, v30.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 12
aese v3.16b, v30.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 12
.Lenc_main_loop_continue:
shl d8, d8, #56 // mod_constant
eor v11.16b, v11.16b, v6.16b // GHASH block 4k+3 - low
eor v10.16b, v10.16b, v4.16b // GHASH block 4k+3 - mid
add w12, w12, #1 // CTR block 4k+3
eor v4.16b, v11.16b, v9.16b // MODULO - karatsuba tidy up
add x0, x0, #64 // AES input_ptr update
pmull v7.1q, v9.1d, v8.1d // MODULO - top 64b align with mid
rev w9, w12 // CTR block 4k+8
ext v9.16b, v9.16b, v9.16b, #8 // MODULO - other top alignment
eor x6, x6, x13 // AES block 4k+4 - round N low
eor v10.16b, v10.16b, v4.16b // MODULO - karatsuba tidy up
eor x7, x7, x14 // AES block 4k+4 - round N high
fmov d4, x6 // AES block 4k+4 - mov low
orr x9, x11, x9, lsl #32 // CTR block 4k+8
eor v7.16b, v9.16b, v7.16b // MODULO - fold into mid
eor x20, x20, x14 // AES block 4k+5 - round N high
eor x24, x24, x14 // AES block 4k+7 - round N high
add w12, w12, #1 // CTR block 4k+8
aese v0.16b, v31.16b // AES block 4k+4 - round N-1
fmov v4.d[1], x7 // AES block 4k+4 - mov high
eor v10.16b, v10.16b, v7.16b // MODULO - fold into mid
fmov d7, x23 // AES block 4k+7 - mov low
aese v1.16b, v31.16b // AES block 4k+5 - round N-1
fmov v5.d[1], x20 // AES block 4k+5 - mov high
fmov d6, x21 // AES block 4k+6 - mov low
cmp x0, x5 // .LOOP CONTROL
fmov v6.d[1], x22 // AES block 4k+6 - mov high
pmull v9.1q, v10.1d, v8.1d // MODULO - mid 64b align with low
eor v4.16b, v4.16b, v0.16b // AES block 4k+4 - result
fmov d0, x10 // CTR block 4k+8
fmov v0.d[1], x9 // CTR block 4k+8
rev w9, w12 // CTR block 4k+9
add w12, w12, #1 // CTR block 4k+9
eor v5.16b, v5.16b, v1.16b // AES block 4k+5 - result
fmov d1, x10 // CTR block 4k+9
orr x9, x11, x9, lsl #32 // CTR block 4k+9
fmov v1.d[1], x9 // CTR block 4k+9
aese v2.16b, v31.16b // AES block 4k+6 - round N-1
rev w9, w12 // CTR block 4k+10
st1 { v4.16b}, [x2], #16 // AES block 4k+4 - store result
orr x9, x11, x9, lsl #32 // CTR block 4k+10
eor v11.16b, v11.16b, v9.16b // MODULO - fold into low
fmov v7.d[1], x24 // AES block 4k+7 - mov high
ext v10.16b, v10.16b, v10.16b, #8 // MODULO - other mid alignment
st1 { v5.16b}, [x2], #16 // AES block 4k+5 - store result
add w12, w12, #1 // CTR block 4k+10
aese v3.16b, v31.16b // AES block 4k+7 - round N-1
eor v6.16b, v6.16b, v2.16b // AES block 4k+6 - result
fmov d2, x10 // CTR block 4k+10
st1 { v6.16b}, [x2], #16 // AES block 4k+6 - store result
fmov v2.d[1], x9 // CTR block 4k+10
rev w9, w12 // CTR block 4k+11
eor v11.16b, v11.16b, v10.16b // MODULO - fold into low
orr x9, x11, x9, lsl #32 // CTR block 4k+11
eor v7.16b, v7.16b, v3.16b // AES block 4k+7 - result
st1 { v7.16b}, [x2], #16 // AES block 4k+7 - store result
b.lt .Lenc_main_loop
.Lenc_prepretail: // PREPRETAIL
aese v1.16b, v18.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 0
rev64 v6.16b, v6.16b // GHASH block 4k+2 (t0, t1, and t2 free)
aese v2.16b, v18.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 0
fmov d3, x10 // CTR block 4k+3
aese v0.16b, v18.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 0
rev64 v4.16b, v4.16b // GHASH block 4k (only t0 is free)
fmov v3.d[1], x9 // CTR block 4k+3
ext v11.16b, v11.16b, v11.16b, #8 // PRE 0
aese v2.16b, v19.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 1
aese v0.16b, v19.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 1
eor v4.16b, v4.16b, v11.16b // PRE 1
rev64 v5.16b, v5.16b // GHASH block 4k+1 (t0 and t1 free)
aese v2.16b, v20.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 2
aese v3.16b, v18.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 0
mov d10, v17.d[1] // GHASH block 4k - mid
aese v1.16b, v19.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 1
pmull v11.1q, v4.1d, v15.1d // GHASH block 4k - low
mov d8, v4.d[1] // GHASH block 4k - mid
pmull2 v9.1q, v4.2d, v15.2d // GHASH block 4k - high
aese v2.16b, v21.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 3
aese v1.16b, v20.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 2
eor v8.8b, v8.8b, v4.8b // GHASH block 4k - mid
aese v0.16b, v20.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 2
aese v3.16b, v19.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 1
aese v1.16b, v21.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 3
pmull v10.1q, v8.1d, v10.1d // GHASH block 4k - mid
pmull2 v4.1q, v5.2d, v14.2d // GHASH block 4k+1 - high
pmull v8.1q, v5.1d, v14.1d // GHASH block 4k+1 - low
aese v3.16b, v20.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 2
eor v9.16b, v9.16b, v4.16b // GHASH block 4k+1 - high
mov d4, v5.d[1] // GHASH block 4k+1 - mid
aese v0.16b, v21.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 3
eor v11.16b, v11.16b, v8.16b // GHASH block 4k+1 - low
aese v3.16b, v21.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 3
eor v4.8b, v4.8b, v5.8b // GHASH block 4k+1 - mid
mov d8, v6.d[1] // GHASH block 4k+2 - mid
aese v0.16b, v22.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 4
rev64 v7.16b, v7.16b // GHASH block 4k+3 (t0, t1, t2 and t3 free)
aese v3.16b, v22.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 4
pmull v4.1q, v4.1d, v17.1d // GHASH block 4k+1 - mid
eor v8.8b, v8.8b, v6.8b // GHASH block 4k+2 - mid
add w12, w12, #1 // CTR block 4k+3
pmull v5.1q, v6.1d, v13.1d // GHASH block 4k+2 - low
aese v3.16b, v23.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 5
aese v2.16b, v22.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 4
eor v10.16b, v10.16b, v4.16b // GHASH block 4k+1 - mid
pmull2 v4.1q, v6.2d, v13.2d // GHASH block 4k+2 - high
eor v11.16b, v11.16b, v5.16b // GHASH block 4k+2 - low
ins v8.d[1], v8.d[0] // GHASH block 4k+2 - mid
aese v2.16b, v23.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 5
eor v9.16b, v9.16b, v4.16b // GHASH block 4k+2 - high
mov d4, v7.d[1] // GHASH block 4k+3 - mid
aese v1.16b, v22.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 4
pmull2 v8.1q, v8.2d, v16.2d // GHASH block 4k+2 - mid
eor v4.8b, v4.8b, v7.8b // GHASH block 4k+3 - mid
pmull2 v5.1q, v7.2d, v12.2d // GHASH block 4k+3 - high
aese v1.16b, v23.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 5
pmull v4.1q, v4.1d, v16.1d // GHASH block 4k+3 - mid
eor v10.16b, v10.16b, v8.16b // GHASH block 4k+2 - mid
aese v0.16b, v23.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 5
aese v1.16b, v24.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 6
aese v2.16b, v24.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 6
aese v0.16b, v24.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 6
movi v8.8b, #0xc2
aese v3.16b, v24.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 6
aese v1.16b, v25.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 7
eor v9.16b, v9.16b, v5.16b // GHASH block 4k+3 - high
aese v0.16b, v25.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 7
aese v3.16b, v25.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 7
shl d8, d8, #56 // mod_constant
aese v1.16b, v26.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 8
eor v10.16b, v10.16b, v4.16b // GHASH block 4k+3 - mid
pmull v6.1q, v7.1d, v12.1d // GHASH block 4k+3 - low
aese v3.16b, v26.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 8
cmp x17, #12 // setup flags for AES-128/192/256 check
aese v0.16b, v26.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 8
eor v11.16b, v11.16b, v6.16b // GHASH block 4k+3 - low
aese v2.16b, v25.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 7
eor v10.16b, v10.16b, v9.16b // karatsuba tidy up
aese v2.16b, v26.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 8
pmull v4.1q, v9.1d, v8.1d
ext v9.16b, v9.16b, v9.16b, #8
eor v10.16b, v10.16b, v11.16b
b.lt .Lenc_finish_prepretail // branch if AES-128
aese v1.16b, v27.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 9
aese v3.16b, v27.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 9
aese v0.16b, v27.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 9
aese v2.16b, v27.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 9
aese v3.16b, v28.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 10
aese v1.16b, v28.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 10
aese v0.16b, v28.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 10
aese v2.16b, v28.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 10
b.eq .Lenc_finish_prepretail // branch if AES-192
aese v1.16b, v29.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 11
aese v0.16b, v29.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 11
aese v3.16b, v29.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 11
aese v2.16b, v29.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 11
aese v1.16b, v30.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 12
aese v0.16b, v30.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 12
aese v3.16b, v30.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 12
aese v2.16b, v30.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 12
.Lenc_finish_prepretail:
eor v10.16b, v10.16b, v4.16b
eor v10.16b, v10.16b, v9.16b
pmull v4.1q, v10.1d, v8.1d
ext v10.16b, v10.16b, v10.16b, #8
aese v1.16b, v31.16b // AES block 4k+5 - round N-1
eor v11.16b, v11.16b, v4.16b
aese v3.16b, v31.16b // AES block 4k+7 - round N-1
aese v0.16b, v31.16b // AES block 4k+4 - round N-1
aese v2.16b, v31.16b // AES block 4k+6 - round N-1
eor v11.16b, v11.16b, v10.16b
.Lenc_tail: // TAIL
ext v8.16b, v11.16b, v11.16b, #8 // prepare final partial tag
sub x5, x4, x0 // main_end_input_ptr is number of bytes left to process
ldp x6, x7, [x0], #16 // AES block 4k+4 - load plaintext
eor x6, x6, x13 // AES block 4k+4 - round N low
eor x7, x7, x14 // AES block 4k+4 - round N high
cmp x5, #48
fmov d4, x6 // AES block 4k+4 - mov low
fmov v4.d[1], x7 // AES block 4k+4 - mov high
eor v5.16b, v4.16b, v0.16b // AES block 4k+4 - result
b.gt .Lenc_blocks_more_than_3
cmp x5, #32
mov v3.16b, v2.16b
movi v11.8b, #0
movi v9.8b, #0
sub w12, w12, #1
mov v2.16b, v1.16b
movi v10.8b, #0
b.gt .Lenc_blocks_more_than_2
mov v3.16b, v1.16b
sub w12, w12, #1
cmp x5, #16
b.gt .Lenc_blocks_more_than_1
sub w12, w12, #1
b .Lenc_blocks_less_than_1
.Lenc_blocks_more_than_3: // blocks left > 3
st1 { v5.16b}, [x2], #16 // AES final-3 block - store result
ldp x6, x7, [x0], #16 // AES final-2 block - load input low & high
rev64 v4.16b, v5.16b // GHASH final-3 block
eor x6, x6, x13 // AES final-2 block - round N low
eor v4.16b, v4.16b, v8.16b // feed in partial tag
eor x7, x7, x14 // AES final-2 block - round N high
mov d22, v4.d[1] // GHASH final-3 block - mid
fmov d5, x6 // AES final-2 block - mov low
fmov v5.d[1], x7 // AES final-2 block - mov high
eor v22.8b, v22.8b, v4.8b // GHASH final-3 block - mid
movi v8.8b, #0 // suppress further partial tag feed in
mov d10, v17.d[1] // GHASH final-3 block - mid
pmull v11.1q, v4.1d, v15.1d // GHASH final-3 block - low
pmull2 v9.1q, v4.2d, v15.2d // GHASH final-3 block - high
pmull v10.1q, v22.1d, v10.1d // GHASH final-3 block - mid
eor v5.16b, v5.16b, v1.16b // AES final-2 block - result
.Lenc_blocks_more_than_2: // blocks left > 2
st1 { v5.16b}, [x2], #16 // AES final-2 block - store result
ldp x6, x7, [x0], #16 // AES final-1 block - load input low & high
rev64 v4.16b, v5.16b // GHASH final-2 block
eor x6, x6, x13 // AES final-1 block - round N low
eor v4.16b, v4.16b, v8.16b // feed in partial tag
fmov d5, x6 // AES final-1 block - mov low
eor x7, x7, x14 // AES final-1 block - round N high
fmov v5.d[1], x7 // AES final-1 block - mov high
movi v8.8b, #0 // suppress further partial tag feed in
pmull2 v20.1q, v4.2d, v14.2d // GHASH final-2 block - high
mov d22, v4.d[1] // GHASH final-2 block - mid
pmull v21.1q, v4.1d, v14.1d // GHASH final-2 block - low
eor v22.8b, v22.8b, v4.8b // GHASH final-2 block - mid
eor v5.16b, v5.16b, v2.16b // AES final-1 block - result
eor v9.16b, v9.16b, v20.16b // GHASH final-2 block - high
pmull v22.1q, v22.1d, v17.1d // GHASH final-2 block - mid
eor v11.16b, v11.16b, v21.16b // GHASH final-2 block - low
eor v10.16b, v10.16b, v22.16b // GHASH final-2 block - mid
.Lenc_blocks_more_than_1: // blocks left > 1
st1 { v5.16b}, [x2], #16 // AES final-1 block - store result
rev64 v4.16b, v5.16b // GHASH final-1 block
ldp x6, x7, [x0], #16 // AES final block - load input low & high
eor v4.16b, v4.16b, v8.16b // feed in partial tag
movi v8.8b, #0 // suppress further partial tag feed in
eor x6, x6, x13 // AES final block - round N low
mov d22, v4.d[1] // GHASH final-1 block - mid
pmull2 v20.1q, v4.2d, v13.2d // GHASH final-1 block - high
eor x7, x7, x14 // AES final block - round N high
eor v22.8b, v22.8b, v4.8b // GHASH final-1 block - mid
eor v9.16b, v9.16b, v20.16b // GHASH final-1 block - high
ins v22.d[1], v22.d[0] // GHASH final-1 block - mid
fmov d5, x6 // AES final block - mov low
fmov v5.d[1], x7 // AES final block - mov high
pmull2 v22.1q, v22.2d, v16.2d // GHASH final-1 block - mid
pmull v21.1q, v4.1d, v13.1d // GHASH final-1 block - low
eor v5.16b, v5.16b, v3.16b // AES final block - result
eor v10.16b, v10.16b, v22.16b // GHASH final-1 block - mid
eor v11.16b, v11.16b, v21.16b // GHASH final-1 block - low
.Lenc_blocks_less_than_1: // blocks left <= 1
and x1, x1, #127 // bit_length %= 128
mvn x13, xzr // rkN_l = 0xffffffffffffffff
sub x1, x1, #128 // bit_length -= 128
neg x1, x1 // bit_length = 128 - #bits in input (in range [1,128])
ld1 { v18.16b}, [x2] // load existing bytes where the possibly partial last block is to be stored
mvn x14, xzr // rkN_h = 0xffffffffffffffff
and x1, x1, #127 // bit_length %= 128
lsr x14, x14, x1 // rkN_h is mask for top 64b of last block
cmp x1, #64
csel x6, x13, x14, lt
csel x7, x14, xzr, lt
fmov d0, x6 // ctr0b is mask for last block
fmov v0.d[1], x7
and v5.16b, v5.16b, v0.16b // possibly partial last block has zeroes in highest bits
rev64 v4.16b, v5.16b // GHASH final block
eor v4.16b, v4.16b, v8.16b // feed in partial tag
bif v5.16b, v18.16b, v0.16b // insert existing bytes in top end of result before storing
pmull2 v20.1q, v4.2d, v12.2d // GHASH final block - high
mov d8, v4.d[1] // GHASH final block - mid
rev w9, w12
pmull v21.1q, v4.1d, v12.1d // GHASH final block - low
eor v9.16b, v9.16b, v20.16b // GHASH final block - high
eor v8.8b, v8.8b, v4.8b // GHASH final block - mid
pmull v8.1q, v8.1d, v16.1d // GHASH final block - mid
eor v11.16b, v11.16b, v21.16b // GHASH final block - low
eor v10.16b, v10.16b, v8.16b // GHASH final block - mid
movi v8.8b, #0xc2
eor v4.16b, v11.16b, v9.16b // MODULO - karatsuba tidy up
shl d8, d8, #56 // mod_constant
eor v10.16b, v10.16b, v4.16b // MODULO - karatsuba tidy up
pmull v7.1q, v9.1d, v8.1d // MODULO - top 64b align with mid
ext v9.16b, v9.16b, v9.16b, #8 // MODULO - other top alignment
eor v10.16b, v10.16b, v7.16b // MODULO - fold into mid
eor v10.16b, v10.16b, v9.16b // MODULO - fold into mid
pmull v9.1q, v10.1d, v8.1d // MODULO - mid 64b align with low
ext v10.16b, v10.16b, v10.16b, #8 // MODULO - other mid alignment
str w9, [x16, #12] // store the updated counter
st1 { v5.16b}, [x2] // store all 16B
eor v11.16b, v11.16b, v9.16b // MODULO - fold into low
eor v11.16b, v11.16b, v10.16b // MODULO - fold into low
ext v11.16b, v11.16b, v11.16b, #8
rev64 v11.16b, v11.16b
mov x0, x15
st1 { v11.16b }, [x3]
ldp x19, x20, [sp, #16]
ldp x21, x22, [sp, #32]
ldp x23, x24, [sp, #48]
ldp d8, d9, [sp, #64]
ldp d10, d11, [sp, #80]
ldp d12, d13, [sp, #96]
ldp d14, d15, [sp, #112]
ldp x29, x30, [sp], #128
AARCH64_VALIDATE_LINK_REGISTER
ret
.size aes_gcm_enc_kernel,.-aes_gcm_enc_kernel
.globl aes_gcm_dec_kernel
.hidden aes_gcm_dec_kernel
.type aes_gcm_dec_kernel,%function
.align 4
aes_gcm_dec_kernel:
AARCH64_SIGN_LINK_REGISTER
stp x29, x30, [sp, #-128]!
mov x29, sp
stp x19, x20, [sp, #16]
mov x16, x4
mov x8, x5
stp x21, x22, [sp, #32]
stp x23, x24, [sp, #48]
stp d8, d9, [sp, #64]
stp d10, d11, [sp, #80]
stp d12, d13, [sp, #96]
stp d14, d15, [sp, #112]
ldr w17, [x8, #240]
add x19, x8, x17, lsl #4 // borrow input_l1 for last key
ldp x13, x14, [x19] // load round N keys
ldr q31, [x19, #-16] // load round N-1 keys
lsr x5, x1, #3 // byte_len
mov x15, x5
ldp x10, x11, [x16] // ctr96_b64, ctr96_t32
ldr q26, [x8, #128] // load rk8
sub x5, x5, #1 // byte_len - 1
ldr q25, [x8, #112] // load rk7
and x5, x5, #0xffffffffffffffc0 // number of bytes to be processed in main loop (at least 1 byte must be handled by tail)
add x4, x0, x1, lsr #3 // end_input_ptr
ldr q24, [x8, #96] // load rk6
lsr x12, x11, #32
ldr q23, [x8, #80] // load rk5
orr w11, w11, w11
ldr q21, [x8, #48] // load rk3
add x5, x5, x0
rev w12, w12 // rev_ctr32
add w12, w12, #1 // increment rev_ctr32
fmov d3, x10 // CTR block 3
rev w9, w12 // CTR block 1
add w12, w12, #1 // CTR block 1
fmov d1, x10 // CTR block 1
orr x9, x11, x9, lsl #32 // CTR block 1
ld1 { v0.16b}, [x16] // special case vector load initial counter so we can start first AES block as quickly as possible
fmov v1.d[1], x9 // CTR block 1
rev w9, w12 // CTR block 2
add w12, w12, #1 // CTR block 2
fmov d2, x10 // CTR block 2
orr x9, x11, x9, lsl #32 // CTR block 2
fmov v2.d[1], x9 // CTR block 2
rev w9, w12 // CTR block 3
orr x9, x11, x9, lsl #32 // CTR block 3
ldr q18, [x8, #0] // load rk0
fmov v3.d[1], x9 // CTR block 3
add w12, w12, #1 // CTR block 3
ldr q22, [x8, #64] // load rk4
ldr q19, [x8, #16] // load rk1
aese v0.16b, v18.16b
aesmc v0.16b, v0.16b // AES block 0 - round 0
ldr q14, [x6, #48] // load h3l | h3h
ext v14.16b, v14.16b, v14.16b, #8
aese v3.16b, v18.16b
aesmc v3.16b, v3.16b // AES block 3 - round 0
ldr q15, [x6, #80] // load h4l | h4h
ext v15.16b, v15.16b, v15.16b, #8
aese v1.16b, v18.16b
aesmc v1.16b, v1.16b // AES block 1 - round 0
ldr q13, [x6, #32] // load h2l | h2h
ext v13.16b, v13.16b, v13.16b, #8
aese v2.16b, v18.16b
aesmc v2.16b, v2.16b // AES block 2 - round 0
ldr q20, [x8, #32] // load rk2
aese v0.16b, v19.16b
aesmc v0.16b, v0.16b // AES block 0 - round 1
aese v1.16b, v19.16b
aesmc v1.16b, v1.16b // AES block 1 - round 1
ld1 { v11.16b}, [x3]
ext v11.16b, v11.16b, v11.16b, #8
rev64 v11.16b, v11.16b
aese v2.16b, v19.16b
aesmc v2.16b, v2.16b // AES block 2 - round 1
ldr q27, [x8, #144] // load rk9
aese v3.16b, v19.16b
aesmc v3.16b, v3.16b // AES block 3 - round 1
ldr q30, [x8, #192] // load rk12
aese v0.16b, v20.16b
aesmc v0.16b, v0.16b // AES block 0 - round 2
ldr q12, [x6] // load h1l | h1h
ext v12.16b, v12.16b, v12.16b, #8
aese v2.16b, v20.16b
aesmc v2.16b, v2.16b // AES block 2 - round 2
ldr q28, [x8, #160] // load rk10
aese v3.16b, v20.16b
aesmc v3.16b, v3.16b // AES block 3 - round 2
aese v0.16b, v21.16b
aesmc v0.16b, v0.16b // AES block 0 - round 3
aese v1.16b, v20.16b
aesmc v1.16b, v1.16b // AES block 1 - round 2
aese v3.16b, v21.16b
aesmc v3.16b, v3.16b // AES block 3 - round 3
aese v0.16b, v22.16b
aesmc v0.16b, v0.16b // AES block 0 - round 4
aese v2.16b, v21.16b
aesmc v2.16b, v2.16b // AES block 2 - round 3
aese v1.16b, v21.16b
aesmc v1.16b, v1.16b // AES block 1 - round 3
aese v3.16b, v22.16b
aesmc v3.16b, v3.16b // AES block 3 - round 4
aese v2.16b, v22.16b
aesmc v2.16b, v2.16b // AES block 2 - round 4
aese v1.16b, v22.16b
aesmc v1.16b, v1.16b // AES block 1 - round 4
aese v3.16b, v23.16b
aesmc v3.16b, v3.16b // AES block 3 - round 5
aese v0.16b, v23.16b
aesmc v0.16b, v0.16b // AES block 0 - round 5
aese v1.16b, v23.16b
aesmc v1.16b, v1.16b // AES block 1 - round 5
aese v2.16b, v23.16b
aesmc v2.16b, v2.16b // AES block 2 - round 5
aese v0.16b, v24.16b
aesmc v0.16b, v0.16b // AES block 0 - round 6
aese v3.16b, v24.16b
aesmc v3.16b, v3.16b // AES block 3 - round 6
cmp x17, #12 // setup flags for AES-128/192/256 check
aese v1.16b, v24.16b
aesmc v1.16b, v1.16b // AES block 1 - round 6
aese v2.16b, v24.16b
aesmc v2.16b, v2.16b // AES block 2 - round 6
aese v0.16b, v25.16b
aesmc v0.16b, v0.16b // AES block 0 - round 7
aese v1.16b, v25.16b
aesmc v1.16b, v1.16b // AES block 1 - round 7
aese v3.16b, v25.16b
aesmc v3.16b, v3.16b // AES block 3 - round 7
aese v0.16b, v26.16b
aesmc v0.16b, v0.16b // AES block 0 - round 8
aese v2.16b, v25.16b
aesmc v2.16b, v2.16b // AES block 2 - round 7
aese v3.16b, v26.16b
aesmc v3.16b, v3.16b // AES block 3 - round 8
aese v1.16b, v26.16b
aesmc v1.16b, v1.16b // AES block 1 - round 8
ldr q29, [x8, #176] // load rk11
aese v2.16b, v26.16b
aesmc v2.16b, v2.16b // AES block 2 - round 8
b.lt .Ldec_finish_first_blocks // branch if AES-128
aese v0.16b, v27.16b
aesmc v0.16b, v0.16b // AES block 0 - round 9
aese v1.16b, v27.16b
aesmc v1.16b, v1.16b // AES block 1 - round 9
aese v3.16b, v27.16b
aesmc v3.16b, v3.16b // AES block 3 - round 9
aese v2.16b, v27.16b
aesmc v2.16b, v2.16b // AES block 2 - round 9
aese v0.16b, v28.16b
aesmc v0.16b, v0.16b // AES block 0 - round 10
aese v1.16b, v28.16b
aesmc v1.16b, v1.16b // AES block 1 - round 10
aese v3.16b, v28.16b
aesmc v3.16b, v3.16b // AES block 3 - round 10
aese v2.16b, v28.16b
aesmc v2.16b, v2.16b // AES block 2 - round 10
b.eq .Ldec_finish_first_blocks // branch if AES-192
aese v0.16b, v29.16b
aesmc v0.16b, v0.16b // AES block 0 - round 11
aese v3.16b, v29.16b
aesmc v3.16b, v3.16b // AES block 3 - round 11
aese v1.16b, v29.16b
aesmc v1.16b, v1.16b // AES block 1 - round 11
aese v2.16b, v29.16b
aesmc v2.16b, v2.16b // AES block 2 - round 11
aese v1.16b, v30.16b
aesmc v1.16b, v1.16b // AES block 1 - round 12
aese v0.16b, v30.16b
aesmc v0.16b, v0.16b // AES block 0 - round 12
aese v2.16b, v30.16b
aesmc v2.16b, v2.16b // AES block 2 - round 12
aese v3.16b, v30.16b
aesmc v3.16b, v3.16b // AES block 3 - round 12
.Ldec_finish_first_blocks:
cmp x0, x5 // check if we have <= 4 blocks
trn1 v9.2d, v14.2d, v15.2d // h4h | h3h
trn2 v17.2d, v14.2d, v15.2d // h4l | h3l
trn1 v8.2d, v12.2d, v13.2d // h2h | h1h
trn2 v16.2d, v12.2d, v13.2d // h2l | h1l
eor v17.16b, v17.16b, v9.16b // h4k | h3k
aese v1.16b, v31.16b // AES block 1 - round N-1
aese v2.16b, v31.16b // AES block 2 - round N-1
eor v16.16b, v16.16b, v8.16b // h2k | h1k
aese v3.16b, v31.16b // AES block 3 - round N-1
aese v0.16b, v31.16b // AES block 0 - round N-1
b.ge .Ldec_tail // handle tail
ldr q4, [x0, #0] // AES block 0 - load ciphertext
ldr q5, [x0, #16] // AES block 1 - load ciphertext
rev w9, w12 // CTR block 4
eor v0.16b, v4.16b, v0.16b // AES block 0 - result
eor v1.16b, v5.16b, v1.16b // AES block 1 - result
rev64 v5.16b, v5.16b // GHASH block 1
ldr q7, [x0, #48] // AES block 3 - load ciphertext
mov x7, v0.d[1] // AES block 0 - mov high
mov x6, v0.d[0] // AES block 0 - mov low
rev64 v4.16b, v4.16b // GHASH block 0
add w12, w12, #1 // CTR block 4
fmov d0, x10 // CTR block 4
orr x9, x11, x9, lsl #32 // CTR block 4
fmov v0.d[1], x9 // CTR block 4
rev w9, w12 // CTR block 5
add w12, w12, #1 // CTR block 5
mov x19, v1.d[0] // AES block 1 - mov low
orr x9, x11, x9, lsl #32 // CTR block 5
mov x20, v1.d[1] // AES block 1 - mov high
eor x7, x7, x14 // AES block 0 - round N high
eor x6, x6, x13 // AES block 0 - round N low
stp x6, x7, [x2], #16 // AES block 0 - store result
fmov d1, x10 // CTR block 5
ldr q6, [x0, #32] // AES block 2 - load ciphertext
add x0, x0, #64 // AES input_ptr update
fmov v1.d[1], x9 // CTR block 5
rev w9, w12 // CTR block 6
add w12, w12, #1 // CTR block 6
eor x19, x19, x13 // AES block 1 - round N low
orr x9, x11, x9, lsl #32 // CTR block 6
eor x20, x20, x14 // AES block 1 - round N high
stp x19, x20, [x2], #16 // AES block 1 - store result
eor v2.16b, v6.16b, v2.16b // AES block 2 - result
cmp x0, x5 // check if we have <= 8 blocks
b.ge .Ldec_prepretail // do prepretail
.Ldec_main_loop: // main loop start
mov x21, v2.d[0] // AES block 4k+2 - mov low
ext v11.16b, v11.16b, v11.16b, #8 // PRE 0
eor v3.16b, v7.16b, v3.16b // AES block 4k+3 - result
aese v0.16b, v18.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 0
mov x22, v2.d[1] // AES block 4k+2 - mov high
aese v1.16b, v18.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 0
fmov d2, x10 // CTR block 4k+6
fmov v2.d[1], x9 // CTR block 4k+6
eor v4.16b, v4.16b, v11.16b // PRE 1
rev w9, w12 // CTR block 4k+7
aese v0.16b, v19.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 1
mov x24, v3.d[1] // AES block 4k+3 - mov high
aese v1.16b, v19.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 1
mov x23, v3.d[0] // AES block 4k+3 - mov low
pmull2 v9.1q, v4.2d, v15.2d // GHASH block 4k - high
mov d8, v4.d[1] // GHASH block 4k - mid
fmov d3, x10 // CTR block 4k+7
aese v0.16b, v20.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 2
orr x9, x11, x9, lsl #32 // CTR block 4k+7
aese v2.16b, v18.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 0
fmov v3.d[1], x9 // CTR block 4k+7
aese v1.16b, v20.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 2
eor v8.8b, v8.8b, v4.8b // GHASH block 4k - mid
aese v0.16b, v21.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 3
eor x22, x22, x14 // AES block 4k+2 - round N high
aese v2.16b, v19.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 1
mov d10, v17.d[1] // GHASH block 4k - mid
aese v1.16b, v21.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 3
rev64 v6.16b, v6.16b // GHASH block 4k+2
aese v3.16b, v18.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 0
eor x21, x21, x13 // AES block 4k+2 - round N low
aese v2.16b, v20.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 2
stp x21, x22, [x2], #16 // AES block 4k+2 - store result
pmull v11.1q, v4.1d, v15.1d // GHASH block 4k - low
pmull2 v4.1q, v5.2d, v14.2d // GHASH block 4k+1 - high
aese v2.16b, v21.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 3
rev64 v7.16b, v7.16b // GHASH block 4k+3
pmull v10.1q, v8.1d, v10.1d // GHASH block 4k - mid
eor x23, x23, x13 // AES block 4k+3 - round N low
pmull v8.1q, v5.1d, v14.1d // GHASH block 4k+1 - low
eor x24, x24, x14 // AES block 4k+3 - round N high
eor v9.16b, v9.16b, v4.16b // GHASH block 4k+1 - high
aese v2.16b, v22.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 4
aese v3.16b, v19.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 1
mov d4, v5.d[1] // GHASH block 4k+1 - mid
aese v0.16b, v22.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 4
eor v11.16b, v11.16b, v8.16b // GHASH block 4k+1 - low
aese v2.16b, v23.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 5
add w12, w12, #1 // CTR block 4k+7
aese v3.16b, v20.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 2
mov d8, v6.d[1] // GHASH block 4k+2 - mid
aese v1.16b, v22.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 4
eor v4.8b, v4.8b, v5.8b // GHASH block 4k+1 - mid
pmull v5.1q, v6.1d, v13.1d // GHASH block 4k+2 - low
aese v3.16b, v21.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 3
eor v8.8b, v8.8b, v6.8b // GHASH block 4k+2 - mid
aese v1.16b, v23.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 5
aese v0.16b, v23.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 5
eor v11.16b, v11.16b, v5.16b // GHASH block 4k+2 - low
pmull v4.1q, v4.1d, v17.1d // GHASH block 4k+1 - mid
rev w9, w12 // CTR block 4k+8
aese v1.16b, v24.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 6
ins v8.d[1], v8.d[0] // GHASH block 4k+2 - mid
aese v0.16b, v24.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 6
add w12, w12, #1 // CTR block 4k+8
aese v3.16b, v22.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 4
aese v1.16b, v25.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 7
eor v10.16b, v10.16b, v4.16b // GHASH block 4k+1 - mid
aese v0.16b, v25.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 7
pmull2 v4.1q, v6.2d, v13.2d // GHASH block 4k+2 - high
mov d6, v7.d[1] // GHASH block 4k+3 - mid
aese v3.16b, v23.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 5
pmull2 v8.1q, v8.2d, v16.2d // GHASH block 4k+2 - mid
aese v0.16b, v26.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 8
eor v9.16b, v9.16b, v4.16b // GHASH block 4k+2 - high
aese v3.16b, v24.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 6
pmull v4.1q, v7.1d, v12.1d // GHASH block 4k+3 - low
orr x9, x11, x9, lsl #32 // CTR block 4k+8
eor v10.16b, v10.16b, v8.16b // GHASH block 4k+2 - mid
pmull2 v5.1q, v7.2d, v12.2d // GHASH block 4k+3 - high
cmp x17, #12 // setup flags for AES-128/192/256 check
eor v6.8b, v6.8b, v7.8b // GHASH block 4k+3 - mid
aese v1.16b, v26.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 8
aese v2.16b, v24.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 6
eor v9.16b, v9.16b, v5.16b // GHASH block 4k+3 - high
pmull v6.1q, v6.1d, v16.1d // GHASH block 4k+3 - mid
movi v8.8b, #0xc2
aese v2.16b, v25.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 7
eor v11.16b, v11.16b, v4.16b // GHASH block 4k+3 - low
aese v3.16b, v25.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 7
shl d8, d8, #56 // mod_constant
aese v2.16b, v26.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 8
eor v10.16b, v10.16b, v6.16b // GHASH block 4k+3 - mid
aese v3.16b, v26.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 8
b.lt .Ldec_main_loop_continue // branch if AES-128
aese v0.16b, v27.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 9
aese v2.16b, v27.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 9
aese v1.16b, v27.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 9
aese v3.16b, v27.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 9
aese v0.16b, v28.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 10
aese v1.16b, v28.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 10
aese v2.16b, v28.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 10
aese v3.16b, v28.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 10
b.eq .Ldec_main_loop_continue // branch if AES-192
aese v0.16b, v29.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 11
aese v1.16b, v29.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 11
aese v2.16b, v29.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 11
aese v3.16b, v29.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 11
aese v0.16b, v30.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 12
aese v1.16b, v30.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 12
aese v2.16b, v30.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 12
aese v3.16b, v30.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 12
.Ldec_main_loop_continue:
pmull v7.1q, v9.1d, v8.1d // MODULO - top 64b align with mid
eor v6.16b, v11.16b, v9.16b // MODULO - karatsuba tidy up
ldr q4, [x0, #0] // AES block 4k+4 - load ciphertext
aese v0.16b, v31.16b // AES block 4k+4 - round N-1
ext v9.16b, v9.16b, v9.16b, #8 // MODULO - other top alignment
eor v10.16b, v10.16b, v6.16b // MODULO - karatsuba tidy up
ldr q5, [x0, #16] // AES block 4k+5 - load ciphertext
eor v0.16b, v4.16b, v0.16b // AES block 4k+4 - result
stp x23, x24, [x2], #16 // AES block 4k+3 - store result
eor v10.16b, v10.16b, v7.16b // MODULO - fold into mid
ldr q7, [x0, #48] // AES block 4k+7 - load ciphertext
ldr q6, [x0, #32] // AES block 4k+6 - load ciphertext
mov x7, v0.d[1] // AES block 4k+4 - mov high
eor v10.16b, v10.16b, v9.16b // MODULO - fold into mid
aese v1.16b, v31.16b // AES block 4k+5 - round N-1
add x0, x0, #64 // AES input_ptr update
mov x6, v0.d[0] // AES block 4k+4 - mov low
fmov d0, x10 // CTR block 4k+8
fmov v0.d[1], x9 // CTR block 4k+8
pmull v8.1q, v10.1d, v8.1d // MODULO - mid 64b align with low
eor v1.16b, v5.16b, v1.16b // AES block 4k+5 - result
rev w9, w12 // CTR block 4k+9
aese v2.16b, v31.16b // AES block 4k+6 - round N-1
orr x9, x11, x9, lsl #32 // CTR block 4k+9
cmp x0, x5 // .LOOP CONTROL
add w12, w12, #1 // CTR block 4k+9
eor x6, x6, x13 // AES block 4k+4 - round N low
eor x7, x7, x14 // AES block 4k+4 - round N high
mov x20, v1.d[1] // AES block 4k+5 - mov high
eor v2.16b, v6.16b, v2.16b // AES block 4k+6 - result
eor v11.16b, v11.16b, v8.16b // MODULO - fold into low
mov x19, v1.d[0] // AES block 4k+5 - mov low
fmov d1, x10 // CTR block 4k+9
ext v10.16b, v10.16b, v10.16b, #8 // MODULO - other mid alignment
fmov v1.d[1], x9 // CTR block 4k+9
rev w9, w12 // CTR block 4k+10
add w12, w12, #1 // CTR block 4k+10
aese v3.16b, v31.16b // AES block 4k+7 - round N-1
orr x9, x11, x9, lsl #32 // CTR block 4k+10
rev64 v5.16b, v5.16b // GHASH block 4k+5
eor x20, x20, x14 // AES block 4k+5 - round N high
stp x6, x7, [x2], #16 // AES block 4k+4 - store result
eor x19, x19, x13 // AES block 4k+5 - round N low
stp x19, x20, [x2], #16 // AES block 4k+5 - store result
rev64 v4.16b, v4.16b // GHASH block 4k+4
eor v11.16b, v11.16b, v10.16b // MODULO - fold into low
b.lt .Ldec_main_loop
.Ldec_prepretail: // PREPRETAIL
ext v11.16b, v11.16b, v11.16b, #8 // PRE 0
mov x21, v2.d[0] // AES block 4k+2 - mov low
eor v3.16b, v7.16b, v3.16b // AES block 4k+3 - result
aese v0.16b, v18.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 0
mov x22, v2.d[1] // AES block 4k+2 - mov high
aese v1.16b, v18.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 0
fmov d2, x10 // CTR block 4k+6
fmov v2.d[1], x9 // CTR block 4k+6
rev w9, w12 // CTR block 4k+7
eor v4.16b, v4.16b, v11.16b // PRE 1
rev64 v6.16b, v6.16b // GHASH block 4k+2
orr x9, x11, x9, lsl #32 // CTR block 4k+7
mov x23, v3.d[0] // AES block 4k+3 - mov low
aese v1.16b, v19.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 1
mov x24, v3.d[1] // AES block 4k+3 - mov high
pmull v11.1q, v4.1d, v15.1d // GHASH block 4k - low
mov d8, v4.d[1] // GHASH block 4k - mid
fmov d3, x10 // CTR block 4k+7
pmull2 v9.1q, v4.2d, v15.2d // GHASH block 4k - high
fmov v3.d[1], x9 // CTR block 4k+7
aese v2.16b, v18.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 0
mov d10, v17.d[1] // GHASH block 4k - mid
aese v0.16b, v19.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 1
eor v8.8b, v8.8b, v4.8b // GHASH block 4k - mid
pmull2 v4.1q, v5.2d, v14.2d // GHASH block 4k+1 - high
aese v2.16b, v19.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 1
rev64 v7.16b, v7.16b // GHASH block 4k+3
aese v3.16b, v18.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 0
pmull v10.1q, v8.1d, v10.1d // GHASH block 4k - mid
eor v9.16b, v9.16b, v4.16b // GHASH block 4k+1 - high
pmull v8.1q, v5.1d, v14.1d // GHASH block 4k+1 - low
aese v3.16b, v19.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 1
mov d4, v5.d[1] // GHASH block 4k+1 - mid
aese v0.16b, v20.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 2
aese v1.16b, v20.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 2
eor v11.16b, v11.16b, v8.16b // GHASH block 4k+1 - low
aese v2.16b, v20.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 2
aese v0.16b, v21.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 3
mov d8, v6.d[1] // GHASH block 4k+2 - mid
aese v3.16b, v20.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 2
eor v4.8b, v4.8b, v5.8b // GHASH block 4k+1 - mid
pmull v5.1q, v6.1d, v13.1d // GHASH block 4k+2 - low
aese v0.16b, v22.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 4
aese v3.16b, v21.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 3
eor v8.8b, v8.8b, v6.8b // GHASH block 4k+2 - mid
pmull v4.1q, v4.1d, v17.1d // GHASH block 4k+1 - mid
aese v0.16b, v23.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 5
eor v11.16b, v11.16b, v5.16b // GHASH block 4k+2 - low
aese v3.16b, v22.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 4
pmull2 v5.1q, v7.2d, v12.2d // GHASH block 4k+3 - high
eor v10.16b, v10.16b, v4.16b // GHASH block 4k+1 - mid
pmull2 v4.1q, v6.2d, v13.2d // GHASH block 4k+2 - high
aese v3.16b, v23.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 5
ins v8.d[1], v8.d[0] // GHASH block 4k+2 - mid
aese v2.16b, v21.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 3
aese v1.16b, v21.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 3
eor v9.16b, v9.16b, v4.16b // GHASH block 4k+2 - high
pmull v4.1q, v7.1d, v12.1d // GHASH block 4k+3 - low
aese v2.16b, v22.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 4
mov d6, v7.d[1] // GHASH block 4k+3 - mid
aese v1.16b, v22.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 4
pmull2 v8.1q, v8.2d, v16.2d // GHASH block 4k+2 - mid
aese v2.16b, v23.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 5
eor v6.8b, v6.8b, v7.8b // GHASH block 4k+3 - mid
aese v1.16b, v23.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 5
aese v3.16b, v24.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 6
eor v10.16b, v10.16b, v8.16b // GHASH block 4k+2 - mid
aese v2.16b, v24.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 6
aese v0.16b, v24.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 6
movi v8.8b, #0xc2
aese v1.16b, v24.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 6
eor v11.16b, v11.16b, v4.16b // GHASH block 4k+3 - low
pmull v6.1q, v6.1d, v16.1d // GHASH block 4k+3 - mid
aese v3.16b, v25.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 7
cmp x17, #12 // setup flags for AES-128/192/256 check
eor v9.16b, v9.16b, v5.16b // GHASH block 4k+3 - high
aese v1.16b, v25.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 7
aese v0.16b, v25.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 7
eor v10.16b, v10.16b, v6.16b // GHASH block 4k+3 - mid
aese v3.16b, v26.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 8
aese v2.16b, v25.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 7
eor v6.16b, v11.16b, v9.16b // MODULO - karatsuba tidy up
aese v1.16b, v26.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 8
aese v0.16b, v26.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 8
shl d8, d8, #56 // mod_constant
aese v2.16b, v26.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 8
b.lt .Ldec_finish_prepretail // branch if AES-128
aese v1.16b, v27.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 9
aese v2.16b, v27.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 9
aese v3.16b, v27.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 9
aese v0.16b, v27.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 9
aese v2.16b, v28.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 10
aese v3.16b, v28.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 10
aese v0.16b, v28.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 10
aese v1.16b, v28.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 10
b.eq .Ldec_finish_prepretail // branch if AES-192
aese v2.16b, v29.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 11
aese v0.16b, v29.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 11
aese v1.16b, v29.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 11
aese v2.16b, v30.16b
aesmc v2.16b, v2.16b // AES block 4k+6 - round 12
aese v3.16b, v29.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 11
aese v1.16b, v30.16b
aesmc v1.16b, v1.16b // AES block 4k+5 - round 12
aese v0.16b, v30.16b
aesmc v0.16b, v0.16b // AES block 4k+4 - round 12
aese v3.16b, v30.16b
aesmc v3.16b, v3.16b // AES block 4k+7 - round 12
.Ldec_finish_prepretail:
eor v10.16b, v10.16b, v6.16b // MODULO - karatsuba tidy up
pmull v7.1q, v9.1d, v8.1d // MODULO - top 64b align with mid
ext v9.16b, v9.16b, v9.16b, #8 // MODULO - other top alignment
eor v10.16b, v10.16b, v7.16b // MODULO - fold into mid
eor x22, x22, x14 // AES block 4k+2 - round N high
eor x23, x23, x13 // AES block 4k+3 - round N low
eor v10.16b, v10.16b, v9.16b // MODULO - fold into mid
add w12, w12, #1 // CTR block 4k+7
eor x21, x21, x13 // AES block 4k+2 - round N low
pmull v8.1q, v10.1d, v8.1d // MODULO - mid 64b align with low
eor x24, x24, x14 // AES block 4k+3 - round N high
stp x21, x22, [x2], #16 // AES block 4k+2 - store result
ext v10.16b, v10.16b, v10.16b, #8 // MODULO - other mid alignment
stp x23, x24, [x2], #16 // AES block 4k+3 - store result
eor v11.16b, v11.16b, v8.16b // MODULO - fold into low
aese v1.16b, v31.16b // AES block 4k+5 - round N-1
aese v0.16b, v31.16b // AES block 4k+4 - round N-1
aese v3.16b, v31.16b // AES block 4k+7 - round N-1
aese v2.16b, v31.16b // AES block 4k+6 - round N-1
eor v11.16b, v11.16b, v10.16b // MODULO - fold into low
.Ldec_tail: // TAIL
sub x5, x4, x0 // main_end_input_ptr is number of bytes left to process
ld1 { v5.16b}, [x0], #16 // AES block 4k+4 - load ciphertext
eor v0.16b, v5.16b, v0.16b // AES block 4k+4 - result
mov x6, v0.d[0] // AES block 4k+4 - mov low
mov x7, v0.d[1] // AES block 4k+4 - mov high
ext v8.16b, v11.16b, v11.16b, #8 // prepare final partial tag
cmp x5, #48
eor x6, x6, x13 // AES block 4k+4 - round N low
eor x7, x7, x14 // AES block 4k+4 - round N high
b.gt .Ldec_blocks_more_than_3
sub w12, w12, #1
mov v3.16b, v2.16b
movi v10.8b, #0
movi v11.8b, #0
cmp x5, #32
movi v9.8b, #0
mov v2.16b, v1.16b
b.gt .Ldec_blocks_more_than_2
sub w12, w12, #1
mov v3.16b, v1.16b
cmp x5, #16
b.gt .Ldec_blocks_more_than_1
sub w12, w12, #1
b .Ldec_blocks_less_than_1
.Ldec_blocks_more_than_3: // blocks left > 3
rev64 v4.16b, v5.16b // GHASH final-3 block
ld1 { v5.16b}, [x0], #16 // AES final-2 block - load ciphertext
stp x6, x7, [x2], #16 // AES final-3 block - store result
mov d10, v17.d[1] // GHASH final-3 block - mid
eor v4.16b, v4.16b, v8.16b // feed in partial tag
eor v0.16b, v5.16b, v1.16b // AES final-2 block - result
mov d22, v4.d[1] // GHASH final-3 block - mid
mov x6, v0.d[0] // AES final-2 block - mov low
mov x7, v0.d[1] // AES final-2 block - mov high
eor v22.8b, v22.8b, v4.8b // GHASH final-3 block - mid
movi v8.8b, #0 // suppress further partial tag feed in
pmull2 v9.1q, v4.2d, v15.2d // GHASH final-3 block - high
pmull v10.1q, v22.1d, v10.1d // GHASH final-3 block - mid
eor x6, x6, x13 // AES final-2 block - round N low
pmull v11.1q, v4.1d, v15.1d // GHASH final-3 block - low
eor x7, x7, x14 // AES final-2 block - round N high
.Ldec_blocks_more_than_2: // blocks left > 2
rev64 v4.16b, v5.16b // GHASH final-2 block
ld1 { v5.16b}, [x0], #16 // AES final-1 block - load ciphertext
eor v4.16b, v4.16b, v8.16b // feed in partial tag
stp x6, x7, [x2], #16 // AES final-2 block - store result
eor v0.16b, v5.16b, v2.16b // AES final-1 block - result
mov d22, v4.d[1] // GHASH final-2 block - mid
pmull v21.1q, v4.1d, v14.1d // GHASH final-2 block - low
pmull2 v20.1q, v4.2d, v14.2d // GHASH final-2 block - high
eor v22.8b, v22.8b, v4.8b // GHASH final-2 block - mid
mov x6, v0.d[0] // AES final-1 block - mov low
mov x7, v0.d[1] // AES final-1 block - mov high
eor v11.16b, v11.16b, v21.16b // GHASH final-2 block - low
movi v8.8b, #0 // suppress further partial tag feed in
pmull v22.1q, v22.1d, v17.1d // GHASH final-2 block - mid
eor v9.16b, v9.16b, v20.16b // GHASH final-2 block - high
eor x6, x6, x13 // AES final-1 block - round N low
eor v10.16b, v10.16b, v22.16b // GHASH final-2 block - mid
eor x7, x7, x14 // AES final-1 block - round N high
.Ldec_blocks_more_than_1: // blocks left > 1
stp x6, x7, [x2], #16 // AES final-1 block - store result
rev64 v4.16b, v5.16b // GHASH final-1 block
ld1 { v5.16b}, [x0], #16 // AES final block - load ciphertext
eor v4.16b, v4.16b, v8.16b // feed in partial tag
movi v8.8b, #0 // suppress further partial tag feed in
mov d22, v4.d[1] // GHASH final-1 block - mid
eor v0.16b, v5.16b, v3.16b // AES final block - result
pmull2 v20.1q, v4.2d, v13.2d // GHASH final-1 block - high
eor v22.8b, v22.8b, v4.8b // GHASH final-1 block - mid
pmull v21.1q, v4.1d, v13.1d // GHASH final-1 block - low
mov x6, v0.d[0] // AES final block - mov low
ins v22.d[1], v22.d[0] // GHASH final-1 block - mid
mov x7, v0.d[1] // AES final block - mov high
pmull2 v22.1q, v22.2d, v16.2d // GHASH final-1 block - mid
eor x6, x6, x13 // AES final block - round N low
eor v11.16b, v11.16b, v21.16b // GHASH final-1 block - low
eor v9.16b, v9.16b, v20.16b // GHASH final-1 block - high
eor v10.16b, v10.16b, v22.16b // GHASH final-1 block - mid
eor x7, x7, x14 // AES final block - round N high
.Ldec_blocks_less_than_1: // blocks left <= 1
and x1, x1, #127 // bit_length %= 128
mvn x14, xzr // rkN_h = 0xffffffffffffffff
sub x1, x1, #128 // bit_length -= 128
mvn x13, xzr // rkN_l = 0xffffffffffffffff
ldp x4, x5, [x2] // load existing bytes we need to not overwrite
neg x1, x1 // bit_length = 128 - #bits in input (in range [1,128])
and x1, x1, #127 // bit_length %= 128
lsr x14, x14, x1 // rkN_h is mask for top 64b of last block
cmp x1, #64
csel x9, x13, x14, lt
csel x10, x14, xzr, lt
fmov d0, x9 // ctr0b is mask for last block
and x6, x6, x9
mov v0.d[1], x10
bic x4, x4, x9 // mask out low existing bytes
rev w9, w12
bic x5, x5, x10 // mask out high existing bytes
orr x6, x6, x4
and x7, x7, x10
orr x7, x7, x5
and v5.16b, v5.16b, v0.16b // possibly partial last block has zeroes in highest bits
rev64 v4.16b, v5.16b // GHASH final block
eor v4.16b, v4.16b, v8.16b // feed in partial tag
pmull v21.1q, v4.1d, v12.1d // GHASH final block - low
mov d8, v4.d[1] // GHASH final block - mid
eor v8.8b, v8.8b, v4.8b // GHASH final block - mid
pmull2 v20.1q, v4.2d, v12.2d // GHASH final block - high
pmull v8.1q, v8.1d, v16.1d // GHASH final block - mid
eor v9.16b, v9.16b, v20.16b // GHASH final block - high
eor v11.16b, v11.16b, v21.16b // GHASH final block - low
eor v10.16b, v10.16b, v8.16b // GHASH final block - mid
movi v8.8b, #0xc2
eor v6.16b, v11.16b, v9.16b // MODULO - karatsuba tidy up
shl d8, d8, #56 // mod_constant
eor v10.16b, v10.16b, v6.16b // MODULO - karatsuba tidy up
pmull v7.1q, v9.1d, v8.1d // MODULO - top 64b align with mid
ext v9.16b, v9.16b, v9.16b, #8 // MODULO - other top alignment
eor v10.16b, v10.16b, v7.16b // MODULO - fold into mid
eor v10.16b, v10.16b, v9.16b // MODULO - fold into mid
pmull v8.1q, v10.1d, v8.1d // MODULO - mid 64b align with low
ext v10.16b, v10.16b, v10.16b, #8 // MODULO - other mid alignment
eor v11.16b, v11.16b, v8.16b // MODULO - fold into low
stp x6, x7, [x2]
str w9, [x16, #12] // store the updated counter
eor v11.16b, v11.16b, v10.16b // MODULO - fold into low
ext v11.16b, v11.16b, v11.16b, #8
rev64 v11.16b, v11.16b
mov x0, x15
st1 { v11.16b }, [x3]
ldp x19, x20, [sp, #16]
ldp x21, x22, [sp, #32]
ldp x23, x24, [sp, #48]
ldp d8, d9, [sp, #64]
ldp d10, d11, [sp, #80]
ldp d12, d13, [sp, #96]
ldp d14, d15, [sp, #112]
ldp x29, x30, [sp], #128
AARCH64_VALIDATE_LINK_REGISTER
ret
.size aes_gcm_dec_kernel,.-aes_gcm_dec_kernel
#endif
#endif // !OPENSSL_NO_ASM && defined(OPENSSL_AARCH64) && defined(__ELF__)