mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 14:26:09 +03:00
238 lines
6.3 KiB
ArmAsm
238 lines
6.3 KiB
ArmAsm
#if defined(__arm__)
|
|
#include <openssl/arm_arch.h>
|
|
|
|
.text
|
|
.fpu neon
|
|
.code 32
|
|
#undef __thumb2__
|
|
.globl gcm_init_v8
|
|
.hidden gcm_init_v8
|
|
.type gcm_init_v8,%function
|
|
.align 4
|
|
gcm_init_v8:
|
|
vld1.64 {q9},[r1] @ load input H
|
|
vmov.i8 q11,#0xe1
|
|
vshl.i64 q11,q11,#57 @ 0xc2.0
|
|
vext.8 q3,q9,q9,#8
|
|
vshr.u64 q10,q11,#63
|
|
vdup.32 q9,d18[1]
|
|
vext.8 q8,q10,q11,#8 @ t0=0xc2....01
|
|
vshr.u64 q10,q3,#63
|
|
vshr.s32 q9,q9,#31 @ broadcast carry bit
|
|
vand q10,q10,q8
|
|
vshl.i64 q3,q3,#1
|
|
vext.8 q10,q10,q10,#8
|
|
vand q8,q8,q9
|
|
vorr q3,q3,q10 @ H<<<=1
|
|
veor q12,q3,q8 @ twisted H
|
|
vst1.64 {q12},[r0]! @ store Htable[0]
|
|
|
|
@ calculate H^2
|
|
vext.8 q8,q12,q12,#8 @ Karatsuba pre-processing
|
|
.byte 0xa8,0x0e,0xa8,0xf2 @ pmull q0,q12,q12
|
|
veor q8,q8,q12
|
|
.byte 0xa9,0x4e,0xa9,0xf2 @ pmull2 q2,q12,q12
|
|
.byte 0xa0,0x2e,0xa0,0xf2 @ pmull q1,q8,q8
|
|
|
|
vext.8 q9,q0,q2,#8 @ Karatsuba post-processing
|
|
veor q10,q0,q2
|
|
veor q1,q1,q9
|
|
veor q1,q1,q10
|
|
.byte 0x26,0x4e,0xe0,0xf2 @ pmull q10,q0,q11 @ 1st phase
|
|
|
|
vmov d4,d3 @ Xh|Xm - 256-bit result
|
|
vmov d3,d0 @ Xm is rotated Xl
|
|
veor q0,q1,q10
|
|
|
|
vext.8 q10,q0,q0,#8 @ 2nd phase
|
|
.byte 0x26,0x0e,0xa0,0xf2 @ pmull q0,q0,q11
|
|
veor q10,q10,q2
|
|
veor q14,q0,q10
|
|
|
|
vext.8 q9,q14,q14,#8 @ Karatsuba pre-processing
|
|
veor q9,q9,q14
|
|
vext.8 q13,q8,q9,#8 @ pack Karatsuba pre-processed
|
|
vst1.64 {q13,q14},[r0] @ store Htable[1..2]
|
|
|
|
bx lr
|
|
.size gcm_init_v8,.-gcm_init_v8
|
|
.globl gcm_gmult_v8
|
|
.hidden gcm_gmult_v8
|
|
.type gcm_gmult_v8,%function
|
|
.align 4
|
|
gcm_gmult_v8:
|
|
vld1.64 {q9},[r0] @ load Xi
|
|
vmov.i8 q11,#0xe1
|
|
vld1.64 {q12,q13},[r1] @ load twisted H, ...
|
|
vshl.u64 q11,q11,#57
|
|
#ifndef __ARMEB__
|
|
vrev64.8 q9,q9
|
|
#endif
|
|
vext.8 q3,q9,q9,#8
|
|
|
|
.byte 0x86,0x0e,0xa8,0xf2 @ pmull q0,q12,q3 @ H.lo·Xi.lo
|
|
veor q9,q9,q3 @ Karatsuba pre-processing
|
|
.byte 0x87,0x4e,0xa9,0xf2 @ pmull2 q2,q12,q3 @ H.hi·Xi.hi
|
|
.byte 0xa2,0x2e,0xaa,0xf2 @ pmull q1,q13,q9 @ (H.lo+H.hi)·(Xi.lo+Xi.hi)
|
|
|
|
vext.8 q9,q0,q2,#8 @ Karatsuba post-processing
|
|
veor q10,q0,q2
|
|
veor q1,q1,q9
|
|
veor q1,q1,q10
|
|
.byte 0x26,0x4e,0xe0,0xf2 @ pmull q10,q0,q11 @ 1st phase of reduction
|
|
|
|
vmov d4,d3 @ Xh|Xm - 256-bit result
|
|
vmov d3,d0 @ Xm is rotated Xl
|
|
veor q0,q1,q10
|
|
|
|
vext.8 q10,q0,q0,#8 @ 2nd phase of reduction
|
|
.byte 0x26,0x0e,0xa0,0xf2 @ pmull q0,q0,q11
|
|
veor q10,q10,q2
|
|
veor q0,q0,q10
|
|
|
|
#ifndef __ARMEB__
|
|
vrev64.8 q0,q0
|
|
#endif
|
|
vext.8 q0,q0,q0,#8
|
|
vst1.64 {q0},[r0] @ write out Xi
|
|
|
|
bx lr
|
|
.size gcm_gmult_v8,.-gcm_gmult_v8
|
|
.globl gcm_ghash_v8
|
|
.hidden gcm_ghash_v8
|
|
.type gcm_ghash_v8,%function
|
|
.align 4
|
|
gcm_ghash_v8:
|
|
vstmdb sp!,{d8,d9,d10,d11,d12,d13,d14,d15} @ 32-bit ABI says so
|
|
vld1.64 {q0},[r0] @ load [rotated] Xi
|
|
@ "[rotated]" means that
|
|
@ loaded value would have
|
|
@ to be rotated in order to
|
|
@ make it appear as in
|
|
@ alorithm specification
|
|
subs r3,r3,#32 @ see if r3 is 32 or larger
|
|
mov r12,#16 @ r12 is used as post-
|
|
@ increment for input pointer;
|
|
@ as loop is modulo-scheduled
|
|
@ r12 is zeroed just in time
|
|
@ to preclude oversteping
|
|
@ inp[len], which means that
|
|
@ last block[s] are actually
|
|
@ loaded twice, but last
|
|
@ copy is not processed
|
|
vld1.64 {q12,q13},[r1]! @ load twisted H, ..., H^2
|
|
vmov.i8 q11,#0xe1
|
|
vld1.64 {q14},[r1]
|
|
moveq r12,#0 @ is it time to zero r12?
|
|
vext.8 q0,q0,q0,#8 @ rotate Xi
|
|
vld1.64 {q8},[r2]! @ load [rotated] I[0]
|
|
vshl.u64 q11,q11,#57 @ compose 0xc2.0 constant
|
|
#ifndef __ARMEB__
|
|
vrev64.8 q8,q8
|
|
vrev64.8 q0,q0
|
|
#endif
|
|
vext.8 q3,q8,q8,#8 @ rotate I[0]
|
|
blo .Lodd_tail_v8 @ r3 was less than 32
|
|
vld1.64 {q9},[r2],r12 @ load [rotated] I[1]
|
|
#ifndef __ARMEB__
|
|
vrev64.8 q9,q9
|
|
#endif
|
|
vext.8 q7,q9,q9,#8
|
|
veor q3,q3,q0 @ I[i]^=Xi
|
|
.byte 0x8e,0x8e,0xa8,0xf2 @ pmull q4,q12,q7 @ H·Ii+1
|
|
veor q9,q9,q7 @ Karatsuba pre-processing
|
|
.byte 0x8f,0xce,0xa9,0xf2 @ pmull2 q6,q12,q7
|
|
b .Loop_mod2x_v8
|
|
|
|
.align 4
|
|
.Loop_mod2x_v8:
|
|
vext.8 q10,q3,q3,#8
|
|
subs r3,r3,#32 @ is there more data?
|
|
.byte 0x86,0x0e,0xac,0xf2 @ pmull q0,q14,q3 @ H^2.lo·Xi.lo
|
|
movlo r12,#0 @ is it time to zero r12?
|
|
|
|
.byte 0xa2,0xae,0xaa,0xf2 @ pmull q5,q13,q9
|
|
veor q10,q10,q3 @ Karatsuba pre-processing
|
|
.byte 0x87,0x4e,0xad,0xf2 @ pmull2 q2,q14,q3 @ H^2.hi·Xi.hi
|
|
veor q0,q0,q4 @ accumulate
|
|
.byte 0xa5,0x2e,0xab,0xf2 @ pmull2 q1,q13,q10 @ (H^2.lo+H^2.hi)·(Xi.lo+Xi.hi)
|
|
vld1.64 {q8},[r2],r12 @ load [rotated] I[i+2]
|
|
|
|
veor q2,q2,q6
|
|
moveq r12,#0 @ is it time to zero r12?
|
|
veor q1,q1,q5
|
|
|
|
vext.8 q9,q0,q2,#8 @ Karatsuba post-processing
|
|
veor q10,q0,q2
|
|
veor q1,q1,q9
|
|
vld1.64 {q9},[r2],r12 @ load [rotated] I[i+3]
|
|
#ifndef __ARMEB__
|
|
vrev64.8 q8,q8
|
|
#endif
|
|
veor q1,q1,q10
|
|
.byte 0x26,0x4e,0xe0,0xf2 @ pmull q10,q0,q11 @ 1st phase of reduction
|
|
|
|
#ifndef __ARMEB__
|
|
vrev64.8 q9,q9
|
|
#endif
|
|
vmov d4,d3 @ Xh|Xm - 256-bit result
|
|
vmov d3,d0 @ Xm is rotated Xl
|
|
vext.8 q7,q9,q9,#8
|
|
vext.8 q3,q8,q8,#8
|
|
veor q0,q1,q10
|
|
.byte 0x8e,0x8e,0xa8,0xf2 @ pmull q4,q12,q7 @ H·Ii+1
|
|
veor q3,q3,q2 @ accumulate q3 early
|
|
|
|
vext.8 q10,q0,q0,#8 @ 2nd phase of reduction
|
|
.byte 0x26,0x0e,0xa0,0xf2 @ pmull q0,q0,q11
|
|
veor q3,q3,q10
|
|
veor q9,q9,q7 @ Karatsuba pre-processing
|
|
veor q3,q3,q0
|
|
.byte 0x8f,0xce,0xa9,0xf2 @ pmull2 q6,q12,q7
|
|
bhs .Loop_mod2x_v8 @ there was at least 32 more bytes
|
|
|
|
veor q2,q2,q10
|
|
vext.8 q3,q8,q8,#8 @ re-construct q3
|
|
adds r3,r3,#32 @ re-construct r3
|
|
veor q0,q0,q2 @ re-construct q0
|
|
beq .Ldone_v8 @ is r3 zero?
|
|
.Lodd_tail_v8:
|
|
vext.8 q10,q0,q0,#8
|
|
veor q3,q3,q0 @ inp^=Xi
|
|
veor q9,q8,q10 @ q9 is rotated inp^Xi
|
|
|
|
.byte 0x86,0x0e,0xa8,0xf2 @ pmull q0,q12,q3 @ H.lo·Xi.lo
|
|
veor q9,q9,q3 @ Karatsuba pre-processing
|
|
.byte 0x87,0x4e,0xa9,0xf2 @ pmull2 q2,q12,q3 @ H.hi·Xi.hi
|
|
.byte 0xa2,0x2e,0xaa,0xf2 @ pmull q1,q13,q9 @ (H.lo+H.hi)·(Xi.lo+Xi.hi)
|
|
|
|
vext.8 q9,q0,q2,#8 @ Karatsuba post-processing
|
|
veor q10,q0,q2
|
|
veor q1,q1,q9
|
|
veor q1,q1,q10
|
|
.byte 0x26,0x4e,0xe0,0xf2 @ pmull q10,q0,q11 @ 1st phase of reduction
|
|
|
|
vmov d4,d3 @ Xh|Xm - 256-bit result
|
|
vmov d3,d0 @ Xm is rotated Xl
|
|
veor q0,q1,q10
|
|
|
|
vext.8 q10,q0,q0,#8 @ 2nd phase of reduction
|
|
.byte 0x26,0x0e,0xa0,0xf2 @ pmull q0,q0,q11
|
|
veor q10,q10,q2
|
|
veor q0,q0,q10
|
|
|
|
.Ldone_v8:
|
|
#ifndef __ARMEB__
|
|
vrev64.8 q0,q0
|
|
#endif
|
|
vext.8 q0,q0,q0,#8
|
|
vst1.64 {q0},[r0] @ write out Xi
|
|
|
|
vldmia sp!,{d8,d9,d10,d11,d12,d13,d14,d15} @ 32-bit ABI says so
|
|
bx lr
|
|
.size gcm_ghash_v8,.-gcm_ghash_v8
|
|
.byte 71,72,65,83,72,32,102,111,114,32,65,82,77,118,56,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
|
|
.align 2
|
|
.align 2
|
|
#endif
|