1 files changed, 427 insertions, 0 deletions
diff --git a/src/Crypto/sha512_avx1_x64.asm b/src/Crypto/sha512_avx1_x64.asm
new file mode 100644
index 00000000..06321b5b
--- /dev/null
+++ b/src/Crypto/sha512_avx1_x64.asm
@@ -0,0 +1,427 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; Copyright (c) 2012, 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 the 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 INTEL CORPORATION "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 INTEL CORPORATION 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.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+; Example YASM command lines:
+; Windows:  yasm -f x64 -D WINABI sha512_avx.asm
+; Linux:    yasm -f elf64 sha512_avx.asm
+;
+
+BITS 64
+section .text
+
+; Virtual Registers
+%ifdef WINABI
+	%define msg	rcx ; ARG1
+	%define digest	rdx ; ARG2
+	%define msglen	r8  ; ARG3
+	%define T1	rsi
+	%define T2	rdi
+%else
+	%define msg	rdi ; ARG1
+	%define digest	rsi ; ARG2
+	%define msglen	rdx ; ARG3
+	%define T1	rcx
+	%define T2	r8
+%endif
+%define a_64	r9
+%define b_64	r10
+%define c_64	r11
+%define d_64	r12
+%define e_64	r13
+%define f_64	r14
+%define g_64	r15
+%define h_64	rbx
+%define tmp0	rax
+
+; Local variables (stack frame)
+; Note: frame_size must be an odd multiple of 8 bytes to XMM align RSP
+struc frame
+	.W:       resq 80 ; Message Schedule
+	.WK:      resq  2 ; W[t] + K[t] | W[t+1] + K[t+1]
+
+%ifdef WINABI
+	.XMMSAVE: resdq 4
+	.GPRSAVE: resq  7
+%else
+	.GPRSAVE: resq  5
+%endif
+endstruc
+
+; Useful QWORD "arrays" for simpler memory references
+%define MSG(i)    msg    + 8*(i) ; Input message (arg1)
+%define DIGEST(i) digest + 8*(i) ; Output Digest (arg2)
+%define K_t(i)    K512   + 8*(i) wrt rip ; SHA Constants (static mem)
+%define W_t(i)    rsp + frame.W  + 8*(i) ; Message Schedule (stack frame)
+%define WK_2(i)   rsp + frame.WK + 8*((i) % 2) ; W[t]+K[t] (stack frame)
+; MSG, DIGEST, K_t, W_t are arrays
+; WK_2(t) points to 1 of 2 qwords at frame.WK depdending on t being odd/even
+
+%macro RotateState 0
+	; Rotate symbles a..h right
+	%xdefine	%%TMP h_64
+	%xdefine	h_64 g_64
+	%xdefine	g_64 f_64
+	%xdefine	f_64 e_64
+	%xdefine	e_64 d_64
+	%xdefine	d_64 c_64
+	%xdefine	c_64 b_64
+	%xdefine	b_64 a_64
+	%xdefine	a_64 %%TMP
+%endmacro
+
+%macro RORQ 2
+	; shld is faster than ror on Sandybridge
+	shld	%1, %1, (64 - %2)
+%endmacro
+
+%macro SHA512_Round 1
+%assign %%t   (%1)
+
+	; Compute Round %%t
+	mov	T1,   f_64        ; T1 = f
+	mov	tmp0, e_64        ; tmp = e
+	xor	T1,   g_64        ; T1 = f ^ g
+	RORQ	tmp0, 23 ; 41     ; tmp = e ror 23
+	and	T1,   e_64        ; T1 = (f ^ g) & e
+	xor	tmp0, e_64        ; tmp = (e ror 23) ^ e
+	xor	T1,   g_64        ; T1 = ((f ^ g) & e) ^ g = CH(e,f,g)
+	add	T1,   [WK_2(%%t)] ; W[t] + K[t] from message scheduler
+	RORQ	tmp0, 4 ; 18      ; tmp = ((e ror 23) ^ e) ror 4
+	xor	tmp0, e_64        ; tmp = (((e ror 23) ^ e) ror 4) ^ e
+	mov	T2,   a_64        ; T2 = a
+	add	T1,   h_64        ; T1 = CH(e,f,g) + W[t] + K[t] + h
+	RORQ	tmp0, 14 ; 14     ; tmp = ((((e ror23)^e)ror4)^e)ror14 = S1(e)
+	add	T1,   tmp0        ; T1 = CH(e,f,g) + W[t] + K[t] + S1(e)
+	mov	tmp0, a_64        ; tmp = a
+	xor	T2,   c_64        ; T2 = a ^ c
+	and	tmp0, c_64        ; tmp = a & c
+	and	T2,   b_64        ; T2 = (a ^ c) & b
+	xor	T2,   tmp0        ; T2 = ((a ^ c) & b) ^ (a & c) = Maj(a,b,c)
+	mov	tmp0, a_64        ; tmp = a
+	RORQ	tmp0, 5 ; 39      ; tmp = a ror 5
+	xor	tmp0, a_64        ; tmp = (a ror 5) ^ a
+	add	d_64, T1          ; e(next_state) = d + T1 
+	RORQ	tmp0, 6 ; 34      ; tmp = ((a ror 5) ^ a) ror 6
+	xor	tmp0, a_64        ; tmp = (((a ror 5) ^ a) ror 6) ^ a
+	lea	h_64, [T1 + T2]   ; a(next_state) = T1 + Maj(a,b,c)
+	RORQ	tmp0, 28 ; 28     ; tmp = ((((a ror5)^a)ror6)^a)ror28 = S0(a)
+	add	h_64, tmp0        ; a(next_state) = T1 + Maj(a,b,c) S0(a)
+	RotateState
+%endmacro
+
+%macro SHA512_2Sched_2Round_avx 1
+%assign %%t %1
+	; Compute rounds %%t-2 and %%t-1
+	; Compute message schedule QWORDS %%t and %%t+1
+
+	;   Two rounds are computed based on the values for K[t-2]+W[t-2] and 
+	; K[t-1]+W[t-1] which were previously stored at WK_2 by the message
+	; scheduler.
+	;   The two new schedule QWORDS are stored at [W_t(%%t)] and [W_t(%%t+1)].
+	; They are then added to their respective SHA512 constants at
+	; [K_t(%%t)] and [K_t(%%t+1)] and stored at dqword [WK_2(%%t)]
+	;   For brievity, the comments following vectored instructions only refer to
+	; the first of a pair of QWORDS.
+	; Eg. XMM4=W[t-2] really means XMM4={W[t-2]|W[t-1]}
+	;   The computation of the message schedule and the rounds are tightly
+	; stitched to take advantage of instruction-level parallelism.
+	; For clarity, integer instructions (for the rounds calculation) are indented
+	; by one tab. Vectored instructions (for the message scheduler) are indented
+	; by two tabs.
+
+		vmovdqa	xmm4, [W_t(%%t-2)]   ; XMM4 = W[t-2]
+		vmovdqu	xmm5, [W_t(%%t-15)]  ; XMM5 = W[t-15]
+	mov	T1,   f_64
+		vpsrlq	xmm0, xmm4, 61       ; XMM0 = W[t-2]>>61
+	mov	tmp0, e_64
+		vpsrlq	xmm6, xmm5, 1        ; XMM6 = W[t-15]>>1
+	xor	T1,   g_64
+	RORQ	tmp0, 23 ; 41
+		vpsrlq	xmm1, xmm4, 19       ; XMM1 = W[t-2]>>19
+	and	T1,   e_64
+	xor	tmp0, e_64
+		vpxor	xmm0, xmm1           ; XMM0 = W[t-2]>>61 ^ W[t-2]>>19
+	xor	T1,   g_64
+	add	T1,   [WK_2(%%t)];
+		vpsrlq	xmm7, xmm5, 8        ; XMM7 = W[t-15]>>8
+	RORQ	tmp0, 4 ; 18
+		vpsrlq	xmm2, xmm4, 6        ; XMM2 = W[t-2]>>6
+	xor	tmp0, e_64
+	mov	T2,   a_64
+	add	T1,   h_64
+		vpxor	xmm6, xmm7           ; XMM6 = W[t-15]>>1 ^ W[t-15]>>8
+	RORQ	tmp0, 14 ; 14
+	add	T1,   tmp0
+		vpsrlq	xmm8, xmm5, 7        ; XMM8 = W[t-15]>>7
+	mov 	tmp0, a_64
+	xor	T2,   c_64
+		vpsllq	xmm3, xmm4, (64-61)  ; XMM3 = W[t-2]<<3
+	and	tmp0, c_64
+	and	T2,   b_64
+		vpxor	xmm2, xmm3           ; XMM2 = W[t-2]>>6 ^ W[t-2]<<3
+	xor	T2,   tmp0
+	mov	tmp0, a_64
+		vpsllq	xmm9, xmm5, (64-1)   ; XMM9 = W[t-15]<<63
+	RORQ	tmp0, 5 ; 39
+		vpxor	xmm8, xmm9           ; XMM8 = W[t-15]>>7 ^ W[t-15]<<63
+	xor	tmp0, a_64
+	add	d_64, T1
+	RORQ	tmp0, 6 ; 34
+	xor	tmp0, a_64
+		vpxor	xmm6, xmm8           ; XMM6 = W[t-15]>>1 ^ W[t-15]>>8 ^ W[t-15]>>7 ^ W[t-15]<<63
+	lea	h_64, [T1 + T2]
+	RORQ 	tmp0, 28 ; 28
+		vpsllq	xmm4, (64-19)        ; XMM4 = W[t-2]<<25
+	add	h_64, tmp0
+	RotateState
+		vpxor	xmm0, xmm4           ; XMM0 = W[t-2]>>61 ^ W[t-2]>>19 ^ W[t-2]<<25
+	mov	T1, f_64
+		vpxor	xmm0, xmm2           ; XMM0 = s1(W[t-2])
+	mov	tmp0, e_64
+	xor	T1,   g_64
+		vpaddq	xmm0, [W_t(%%t-16)]  ; XMM0 = s1(W[t-2]) + W[t-16]
+		vmovdqu	xmm1, [W_t(%%t- 7)]  ; XMM1 = W[t-7]
+	RORQ	tmp0, 23 ; 41
+	and	T1,   e_64
+	xor	tmp0, e_64
+	xor	T1,   g_64
+		vpsllq	xmm5, (64-8)         ; XMM5 = W[t-15]<<56
+	add	T1,   [WK_2(%%t+1)]
+		vpxor	xmm6, xmm5           ; XMM6 = s0(W[t-15])
+	RORQ	tmp0, 4 ; 18
+		vpaddq	xmm0, xmm6           ; XMM0 = s1(W[t-2]) + W[t-16] + s0(W[t-15])
+	xor	tmp0, e_64
+		vpaddq	xmm0, xmm1           ; XMM0 = W[t] = s1(W[t-2]) + W[t-7] + s0(W[t-15]) + W[t-16]
+	mov	T2,   a_64
+	add	T1,   h_64
+	RORQ	tmp0, 14 ; 14
+	add	T1,   tmp0
+		vmovdqa	[W_t(%%t)], xmm0      ; Store W[t]
+		vpaddq	xmm0, [K_t(t)]        ; Compute W[t]+K[t]
+		vmovdqa	[WK_2(t)], xmm0       ; Store W[t]+K[t] for next rounds
+	mov	tmp0, a_64
+	xor	T2,   c_64
+	and	tmp0, c_64
+	and	T2,   b_64
+	xor	T2,   tmp0
+	mov	tmp0, a_64
+	RORQ	tmp0, 5 ; 39
+	xor	tmp0, a_64
+	add	d_64, T1
+	RORQ	tmp0, 6 ; 34
+	xor	tmp0, a_64
+	lea	h_64, [T1 + T2]
+	RORQ	tmp0, 28 ; 28
+	add	h_64, tmp0
+	RotateState
+%endmacro
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; void sha512_avx(const void* M, void* D, uint64_t L);
+; Purpose: Updates the SHA512 digest stored at D with the message stored in M.
+; The size of the message pointed to by M must be an integer multiple of SHA512
+;   message blocks.
+; L is the message length in SHA512 blocks
+global sha512_avx:function
+sha512_avx:
+	cmp	msglen, 0
+	je	.nowork
+	
+	; Allocate Stack Space
+	sub	rsp, frame_size
+
+	; Save GPRs
+	mov	[rsp + frame.GPRSAVE + 8 * 0], rbx
+	mov	[rsp + frame.GPRSAVE + 8 * 1], r12
+	mov	[rsp + frame.GPRSAVE + 8 * 2], r13
+	mov	[rsp + frame.GPRSAVE + 8 * 3], r14
+	mov	[rsp + frame.GPRSAVE + 8 * 4], r15
+%ifdef WINABI
+	mov	[rsp + frame.GPRSAVE + 8 * 5], rsi
+	mov	[rsp + frame.GPRSAVE + 8 * 6], rdi
+%endif
+	; Save XMMs
+%ifdef WINABI
+	vmovdqa	[rsp + frame.XMMSAVE + 16 * 0], xmm6
+	vmovdqa	[rsp + frame.XMMSAVE + 16 * 1], xmm7
+	vmovdqa	[rsp + frame.XMMSAVE + 16 * 2], xmm8
+	vmovdqa	[rsp + frame.XMMSAVE + 16 * 3], xmm9
+%endif	
+
+.updateblock:
+
+	; Load state variables
+	mov	a_64, [DIGEST(0)]
+	mov	b_64, [DIGEST(1)]
+	mov	c_64, [DIGEST(2)]
+	mov	d_64, [DIGEST(3)]
+	mov	e_64, [DIGEST(4)]
+	mov	f_64, [DIGEST(5)]
+	mov	g_64, [DIGEST(6)]
+	mov	h_64, [DIGEST(7)]
+
+	%assign t 0
+	%rep 80/2 + 1
+	; (80 rounds) / (2 rounds/iteration) + (1 iteration)
+	; +1 iteration because the scheduler leads hashing by 1 iteration
+		%if t < 2
+			; BSWAP 2 QWORDS
+			vmovdqa	xmm1, [XMM_QWORD_BSWAP wrt rip]
+			vmovdqu	xmm0, [MSG(t)]
+			vpshufb	xmm0, xmm0, xmm1     ; BSWAP
+			vmovdqa	[W_t(t)], xmm0       ; Store Scheduled Pair
+			vpaddq	xmm0, xmm0, [K_t(t)] ; Compute W[t]+K[t]
+			vmovdqa	[WK_2(t)], xmm0      ; Store into WK for rounds
+		%elif t < 16
+			; BSWAP 2 QWORDS, Compute 2 Rounds
+			vmovdqu	xmm0, [MSG(t)]
+			vpshufb	xmm0, xmm0, xmm1     ; BSWAP
+			SHA512_Round t - 2           ; Round t-2
+			vmovdqa	[W_t(t)], xmm0       ; Store Scheduled Pair
+			vpaddq	xmm0, xmm0, [K_t(t)] ; Compute W[t]+K[t]
+			SHA512_Round t - 1           ; Round t-1
+			vmovdqa	[WK_2(t)], xmm0      ; W[t]+K[t] into WK
+		%elif t < 79
+			; Schedule 2 QWORDS; Compute 2 Rounds
+			SHA512_2Sched_2Round_avx t
+		%else
+			; Compute 2 Rounds
+			SHA512_Round t - 2
+			SHA512_Round t - 1
+		%endif
+	%assign t t+2
+	%endrep
+
+	; Update digest
+	add	[DIGEST(0)], a_64
+	add	[DIGEST(1)], b_64
+	add	[DIGEST(2)], c_64
+	add	[DIGEST(3)], d_64
+	add	[DIGEST(4)], e_64
+	add	[DIGEST(5)], f_64
+	add	[DIGEST(6)], g_64
+	add	[DIGEST(7)], h_64
+
+	; Advance to next message block
+	add	msg, 16*8
+	dec	msglen
+	jnz	.updateblock
+
+	; Restore XMMs
+%ifdef WINABI
+	vmovdqa	xmm6, [rsp + frame.XMMSAVE + 16 * 0]
+	vmovdqa	xmm7, [rsp + frame.XMMSAVE + 16 * 1]
+	vmovdqa	xmm8, [rsp + frame.XMMSAVE + 16 * 2]
+	vmovdqa	xmm9, [rsp + frame.XMMSAVE + 16 * 3]
+%endif
+	; Restore GPRs
+	mov	rbx, [rsp + frame.GPRSAVE + 8 * 0]
+	mov	r12, [rsp + frame.GPRSAVE + 8 * 1]
+	mov	r13, [rsp + frame.GPRSAVE + 8 * 2]
+	mov	r14, [rsp + frame.GPRSAVE + 8 * 3]
+	mov	r15, [rsp + frame.GPRSAVE + 8 * 4]
+%ifdef WINABI
+	mov	rsi, [rsp + frame.GPRSAVE + 8 * 5]
+	mov	rdi, [rsp + frame.GPRSAVE + 8 * 6]
+%endif
+	; Restore Stack Pointer
+	add	rsp, frame_size
+
+.nowork:
+	ret
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;; Binary Data
+
+section .data
+
+ALIGN 16
+
+; Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb.
+XMM_QWORD_BSWAP: 
+	ddq 0x08090a0b0c0d0e0f0001020304050607
+
+; K[t] used in SHA512 hashing
+K512:
+	dq 0x428a2f98d728ae22,0x7137449123ef65cd 
+	dq 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
+	dq 0x3956c25bf348b538,0x59f111f1b605d019 
+	dq 0x923f82a4af194f9b,0xab1c5ed5da6d8118
+	dq 0xd807aa98a3030242,0x12835b0145706fbe 
+	dq 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
+	dq 0x72be5d74f27b896f,0x80deb1fe3b1696b1 
+	dq 0x9bdc06a725c71235,0xc19bf174cf692694
+	dq 0xe49b69c19ef14ad2,0xefbe4786384f25e3 
+	dq 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
+	dq 0x2de92c6f592b0275,0x4a7484aa6ea6e483 
+	dq 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
+	dq 0x983e5152ee66dfab,0xa831c66d2db43210 
+	dq 0xb00327c898fb213f,0xbf597fc7beef0ee4
+	dq 0xc6e00bf33da88fc2,0xd5a79147930aa725 
+	dq 0x06ca6351e003826f,0x142929670a0e6e70
+	dq 0x27b70a8546d22ffc,0x2e1b21385c26c926 
+	dq 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
+	dq 0x650a73548baf63de,0x766a0abb3c77b2a8 
+	dq 0x81c2c92e47edaee6,0x92722c851482353b
+	dq 0xa2bfe8a14cf10364,0xa81a664bbc423001 
+	dq 0xc24b8b70d0f89791,0xc76c51a30654be30
+	dq 0xd192e819d6ef5218,0xd69906245565a910 
+	dq 0xf40e35855771202a,0x106aa07032bbd1b8
+	dq 0x19a4c116b8d2d0c8,0x1e376c085141ab53 
+	dq 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
+	dq 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb 
+	dq 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
+	dq 0x748f82ee5defb2fc,0x78a5636f43172f60 
+	dq 0x84c87814a1f0ab72,0x8cc702081a6439ec
+	dq 0x90befffa23631e28,0xa4506cebde82bde9 
+	dq 0xbef9a3f7b2c67915,0xc67178f2e372532b
+	dq 0xca273eceea26619c,0xd186b8c721c0c207 
+	dq 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
+	dq 0x06f067aa72176fba,0x0a637dc5a2c898a6 
+	dq 0x113f9804bef90dae,0x1b710b35131c471b
+	dq 0x28db77f523047d84,0x32caab7b40c72493 
+	dq 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
+	dq 0x4cc5d4becb3e42b6,0x597f299cfc657e2a 
+	dq 0x5fcb6fab3ad6faec,0x6c44198c4a475817
+
+%ifidn __OUTPUT_FORMAT__,elf
+section .note.GNU-stack noalloc noexec nowrite progbits
+%endif
+%ifidn __OUTPUT_FORMAT__,elf32
+section .note.GNU-stack noalloc noexec nowrite progbits
+%endif
+%ifidn __OUTPUT_FORMAT__,elf64
+section .note.GNU-stack noalloc noexec nowrite progbits
+%endif