mirror of
https://github.com/golang/go
synced 2024-11-12 08:00:22 -07:00
crypto/sha256: block implementation in 386 assembly
Benchmark on Intel(R) Core(TM) i5-2500S CPU @ 2.70GHz (albeit in a VM) benchmark old ns/op new ns/op delta BenchmarkHash8Bytes 1606 699 -56.48% BenchmarkHash1K 21920 7268 -66.84% BenchmarkHash8K 165696 53756 -67.56% benchmark old MB/s new MB/s speedup BenchmarkHash8Bytes 4.98 11.44 2.30x BenchmarkHash1K 46.72 140.88 3.02x BenchmarkHash8K 49.44 152.39 3.08x R=agl, cldorian CC=golang-codereviews https://golang.org/cl/44800044
This commit is contained in:
Joel Sing
Adam Langley
parent
939b3fa39e
commit
232a4e89a4
@ -2,7 +2,7 @@
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build !amd64
|
||||
// +build !386,!amd64
|
||||
|
||||
// SHA256 block step.
|
||||
// In its own file so that a faster assembly or C version
|
||||
|
||||
283
src/pkg/crypto/sha256/sha256block_386.s
Normal file
283
src/pkg/crypto/sha256/sha256block_386.s
Normal file
@ -0,0 +1,283 @@
|
||||
// Copyright 2013 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// SHA256 block routine. See sha256block.go for Go equivalent.
|
||||
//
|
||||
// The algorithm is detailed in FIPS 180-4:
|
||||
//
|
||||
// http://csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf
|
||||
//
|
||||
// Wt = Mt; for 0 <= t <= 15
|
||||
// Wt = SIGMA1(Wt-2) + SIGMA0(Wt-15) + Wt-16; for 16 <= t <= 63
|
||||
//
|
||||
// a = H0
|
||||
// b = H1
|
||||
// c = H2
|
||||
// d = H3
|
||||
// e = H4
|
||||
// f = H5
|
||||
// g = H6
|
||||
// h = H7
|
||||
//
|
||||
// for t = 0 to 63 {
|
||||
// T1 = h + BIGSIGMA1(e) + Ch(e,f,g) + Kt + Wt
|
||||
// T2 = BIGSIGMA0(a) + Maj(a,b,c)
|
||||
// h = g
|
||||
// g = f
|
||||
// f = e
|
||||
// e = d + T1
|
||||
// d = c
|
||||
// c = b
|
||||
// b = a
|
||||
// a = T1 + T2
|
||||
// }
|
||||
//
|
||||
// H0 = a + H0
|
||||
// H1 = b + H1
|
||||
// H2 = c + H2
|
||||
// H3 = d + H3
|
||||
// H4 = e + H4
|
||||
// H5 = f + H5
|
||||
// H6 = g + H6
|
||||
// H7 = h + H7
|
||||
|
||||
// Wt = Mt; for 0 <= t <= 15
|
||||
#define MSGSCHEDULE0(index) \
|
||||
MOVL (index*4)(SI), AX; \
|
||||
BSWAPL AX; \
|
||||
MOVL AX, (index*4)(BP)
|
||||
|
||||
// Wt = SIGMA1(Wt-2) + Wt-7 + SIGMA0(Wt-15) + Wt-16; for 16 <= t <= 63
|
||||
// SIGMA0(x) = ROTR(7,x) XOR ROTR(18,x) XOR SHR(3,x)
|
||||
// SIGMA1(x) = ROTR(17,x) XOR ROTR(19,x) XOR SHR(10,x)
|
||||
#define MSGSCHEDULE1(index) \
|
||||
MOVL ((index-2)*4)(BP), AX; \
|
||||
MOVL AX, CX; \
|
||||
RORL $17, AX; \
|
||||
MOVL CX, DX; \
|
||||
RORL $19, CX; \
|
||||
SHRL $10, DX; \
|
||||
MOVL ((index-15)*4)(BP), BX; \
|
||||
XORL CX, AX; \
|
||||
MOVL BX, CX; \
|
||||
XORL DX, AX; \
|
||||
RORL $7, BX; \
|
||||
MOVL CX, DX; \
|
||||
SHRL $3, DX; \
|
||||
RORL $18, CX; \
|
||||
ADDL ((index-7)*4)(BP), AX; \
|
||||
XORL CX, BX; \
|
||||
XORL DX, BX; \
|
||||
ADDL ((index-16)*4)(BP), BX; \
|
||||
ADDL BX, AX; \
|
||||
MOVL AX, ((index)*4)(BP)
|
||||
|
||||
// Calculate T1 in AX - uses AX, BX, CX and DX registers.
|
||||
// Wt is passed in AX.
|
||||
// T1 = h + BIGSIGMA1(e) + Ch(e, f, g) + Kt + Wt
|
||||
// BIGSIGMA1(x) = ROTR(6,x) XOR ROTR(11,x) XOR ROTR(25,x)
|
||||
// Ch(x, y, z) = (x AND y) XOR (NOT x AND z)
|
||||
#define SHA256T1(const, e, f, g, h) \
|
||||
MOVL (h*4)(DI), BX; \
|
||||
ADDL AX, BX; \
|
||||
MOVL (e*4)(DI), AX; \
|
||||
ADDL $const, BX; \
|
||||
MOVL (e*4)(DI), CX; \
|
||||
RORL $6, AX; \
|
||||
MOVL (e*4)(DI), DX; \
|
||||
RORL $11, CX; \
|
||||
XORL CX, AX; \
|
||||
MOVL (e*4)(DI), CX; \
|
||||
RORL $25, DX; \
|
||||
ANDL (f*4)(DI), CX; \
|
||||
XORL AX, DX; \
|
||||
MOVL (e*4)(DI), AX; \
|
||||
NOTL AX; \
|
||||
ADDL DX, BX; \
|
||||
ANDL (g*4)(DI), AX; \
|
||||
XORL CX, AX; \
|
||||
ADDL BX, AX
|
||||
|
||||
// Calculate T2 in BX - uses AX, BX, CX and DX registers.
|
||||
// T2 = BIGSIGMA0(a) + Maj(a, b, c)
|
||||
// BIGSIGMA0(x) = ROTR(2,x) XOR ROTR(13,x) XOR ROTR(22,x)
|
||||
// Maj(x, y, z) = (x AND y) XOR (x AND z) XOR (y AND z)
|
||||
#define SHA256T2(a, b, c) \
|
||||
MOVL (a*4)(DI), AX; \
|
||||
MOVL (c*4)(DI), BX; \
|
||||
RORL $2, AX; \
|
||||
MOVL (a*4)(DI), DX; \
|
||||
ANDL (b*4)(DI), BX; \
|
||||
RORL $13, DX; \
|
||||
MOVL (a*4)(DI), CX; \
|
||||
ANDL (c*4)(DI), CX; \
|
||||
XORL DX, AX; \
|
||||
XORL CX, BX; \
|
||||
MOVL (a*4)(DI), DX; \
|
||||
MOVL (b*4)(DI), CX; \
|
||||
RORL $22, DX; \
|
||||
ANDL (a*4)(DI), CX; \
|
||||
XORL CX, BX; \
|
||||
XORL DX, AX; \
|
||||
ADDL AX, BX
|
||||
|
||||
// Calculate T1 and T2, then e = d + T1 and a = T1 + T2.
|
||||
// The values for e and a are stored in d and h, ready for rotation.
|
||||
#define SHA256ROUND(index, const, a, b, c, d, e, f, g, h) \
|
||||
SHA256T1(const, e, f, g, h); \
|
||||
MOVL AX, 292(SP); \
|
||||
SHA256T2(a, b, c); \
|
||||
MOVL 292(SP), AX; \
|
||||
ADDL AX, BX; \
|
||||
ADDL AX, (d*4)(DI); \
|
||||
MOVL BX, (h*4)(DI)
|
||||
|
||||
#define SHA256ROUND0(index, const, a, b, c, d, e, f, g, h) \
|
||||
MSGSCHEDULE0(index); \
|
||||
SHA256ROUND(index, const, a, b, c, d, e, f, g, h)
|
||||
|
||||
#define SHA256ROUND1(index, const, a, b, c, d, e, f, g, h) \
|
||||
MSGSCHEDULE1(index); \
|
||||
SHA256ROUND(index, const, a, b, c, d, e, f, g, h)
|
||||
|
||||
TEXT ·block(SB),0,$296-12
|
||||
MOVL p_base+4(FP), SI
|
||||
MOVL p_len+8(FP), DX
|
||||
SHRL $6, DX
|
||||
SHLL $6, DX
|
||||
|
||||
LEAL (SI)(DX*1), DI
|
||||
MOVL DI, 288(SP)
|
||||
CMPL SI, DI
|
||||
JEQ end
|
||||
|
||||
LEAL 256(SP), DI // variables
|
||||
|
||||
MOVL dig+0(FP), BP
|
||||
MOVL (0*4)(BP), AX // a = H0
|
||||
MOVL AX, (0*4)(DI)
|
||||
MOVL (1*4)(BP), BX // b = H1
|
||||
MOVL BX, (1*4)(DI)
|
||||
MOVL (2*4)(BP), CX // c = H2
|
||||
MOVL CX, (2*4)(DI)
|
||||
MOVL (3*4)(BP), DX // d = H3
|
||||
MOVL DX, (3*4)(DI)
|
||||
MOVL (4*4)(BP), AX // e = H4
|
||||
MOVL AX, (4*4)(DI)
|
||||
MOVL (5*4)(BP), BX // f = H5
|
||||
MOVL BX, (5*4)(DI)
|
||||
MOVL (6*4)(BP), CX // g = H6
|
||||
MOVL CX, (6*4)(DI)
|
||||
MOVL (7*4)(BP), DX // h = H7
|
||||
MOVL DX, (7*4)(DI)
|
||||
|
||||
loop:
|
||||
MOVL SP, BP // message schedule
|
||||
|
||||
SHA256ROUND0(0, 0x428a2f98, 0, 1, 2, 3, 4, 5, 6, 7)
|
||||
SHA256ROUND0(1, 0x71374491, 7, 0, 1, 2, 3, 4, 5, 6)
|
||||
SHA256ROUND0(2, 0xb5c0fbcf, 6, 7, 0, 1, 2, 3, 4, 5)
|
||||
SHA256ROUND0(3, 0xe9b5dba5, 5, 6, 7, 0, 1, 2, 3, 4)
|
||||
SHA256ROUND0(4, 0x3956c25b, 4, 5, 6, 7, 0, 1, 2, 3)
|
||||
SHA256ROUND0(5, 0x59f111f1, 3, 4, 5, 6, 7, 0, 1, 2)
|
||||
SHA256ROUND0(6, 0x923f82a4, 2, 3, 4, 5, 6, 7, 0, 1)
|
||||
SHA256ROUND0(7, 0xab1c5ed5, 1, 2, 3, 4, 5, 6, 7, 0)
|
||||
SHA256ROUND0(8, 0xd807aa98, 0, 1, 2, 3, 4, 5, 6, 7)
|
||||
SHA256ROUND0(9, 0x12835b01, 7, 0, 1, 2, 3, 4, 5, 6)
|
||||
SHA256ROUND0(10, 0x243185be, 6, 7, 0, 1, 2, 3, 4, 5)
|
||||
SHA256ROUND0(11, 0x550c7dc3, 5, 6, 7, 0, 1, 2, 3, 4)
|
||||
SHA256ROUND0(12, 0x72be5d74, 4, 5, 6, 7, 0, 1, 2, 3)
|
||||
SHA256ROUND0(13, 0x80deb1fe, 3, 4, 5, 6, 7, 0, 1, 2)
|
||||
SHA256ROUND0(14, 0x9bdc06a7, 2, 3, 4, 5, 6, 7, 0, 1)
|
||||
SHA256ROUND0(15, 0xc19bf174, 1, 2, 3, 4, 5, 6, 7, 0)
|
||||
|
||||
SHA256ROUND1(16, 0xe49b69c1, 0, 1, 2, 3, 4, 5, 6, 7)
|
||||
SHA256ROUND1(17, 0xefbe4786, 7, 0, 1, 2, 3, 4, 5, 6)
|
||||
SHA256ROUND1(18, 0x0fc19dc6, 6, 7, 0, 1, 2, 3, 4, 5)
|
||||
SHA256ROUND1(19, 0x240ca1cc, 5, 6, 7, 0, 1, 2, 3, 4)
|
||||
SHA256ROUND1(20, 0x2de92c6f, 4, 5, 6, 7, 0, 1, 2, 3)
|
||||
SHA256ROUND1(21, 0x4a7484aa, 3, 4, 5, 6, 7, 0, 1, 2)
|
||||
SHA256ROUND1(22, 0x5cb0a9dc, 2, 3, 4, 5, 6, 7, 0, 1)
|
||||
SHA256ROUND1(23, 0x76f988da, 1, 2, 3, 4, 5, 6, 7, 0)
|
||||
SHA256ROUND1(24, 0x983e5152, 0, 1, 2, 3, 4, 5, 6, 7)
|
||||
SHA256ROUND1(25, 0xa831c66d, 7, 0, 1, 2, 3, 4, 5, 6)
|
||||
SHA256ROUND1(26, 0xb00327c8, 6, 7, 0, 1, 2, 3, 4, 5)
|
||||
SHA256ROUND1(27, 0xbf597fc7, 5, 6, 7, 0, 1, 2, 3, 4)
|
||||
SHA256ROUND1(28, 0xc6e00bf3, 4, 5, 6, 7, 0, 1, 2, 3)
|
||||
SHA256ROUND1(29, 0xd5a79147, 3, 4, 5, 6, 7, 0, 1, 2)
|
||||
SHA256ROUND1(30, 0x06ca6351, 2, 3, 4, 5, 6, 7, 0, 1)
|
||||
SHA256ROUND1(31, 0x14292967, 1, 2, 3, 4, 5, 6, 7, 0)
|
||||
SHA256ROUND1(32, 0x27b70a85, 0, 1, 2, 3, 4, 5, 6, 7)
|
||||
SHA256ROUND1(33, 0x2e1b2138, 7, 0, 1, 2, 3, 4, 5, 6)
|
||||
SHA256ROUND1(34, 0x4d2c6dfc, 6, 7, 0, 1, 2, 3, 4, 5)
|
||||
SHA256ROUND1(35, 0x53380d13, 5, 6, 7, 0, 1, 2, 3, 4)
|
||||
SHA256ROUND1(36, 0x650a7354, 4, 5, 6, 7, 0, 1, 2, 3)
|
||||
SHA256ROUND1(37, 0x766a0abb, 3, 4, 5, 6, 7, 0, 1, 2)
|
||||
SHA256ROUND1(38, 0x81c2c92e, 2, 3, 4, 5, 6, 7, 0, 1)
|
||||
SHA256ROUND1(39, 0x92722c85, 1, 2, 3, 4, 5, 6, 7, 0)
|
||||
SHA256ROUND1(40, 0xa2bfe8a1, 0, 1, 2, 3, 4, 5, 6, 7)
|
||||
SHA256ROUND1(41, 0xa81a664b, 7, 0, 1, 2, 3, 4, 5, 6)
|
||||
SHA256ROUND1(42, 0xc24b8b70, 6, 7, 0, 1, 2, 3, 4, 5)
|
||||
SHA256ROUND1(43, 0xc76c51a3, 5, 6, 7, 0, 1, 2, 3, 4)
|
||||
SHA256ROUND1(44, 0xd192e819, 4, 5, 6, 7, 0, 1, 2, 3)
|
||||
SHA256ROUND1(45, 0xd6990624, 3, 4, 5, 6, 7, 0, 1, 2)
|
||||
SHA256ROUND1(46, 0xf40e3585, 2, 3, 4, 5, 6, 7, 0, 1)
|
||||
SHA256ROUND1(47, 0x106aa070, 1, 2, 3, 4, 5, 6, 7, 0)
|
||||
SHA256ROUND1(48, 0x19a4c116, 0, 1, 2, 3, 4, 5, 6, 7)
|
||||
SHA256ROUND1(49, 0x1e376c08, 7, 0, 1, 2, 3, 4, 5, 6)
|
||||
SHA256ROUND1(50, 0x2748774c, 6, 7, 0, 1, 2, 3, 4, 5)
|
||||
SHA256ROUND1(51, 0x34b0bcb5, 5, 6, 7, 0, 1, 2, 3, 4)
|
||||
SHA256ROUND1(52, 0x391c0cb3, 4, 5, 6, 7, 0, 1, 2, 3)
|
||||
SHA256ROUND1(53, 0x4ed8aa4a, 3, 4, 5, 6, 7, 0, 1, 2)
|
||||
SHA256ROUND1(54, 0x5b9cca4f, 2, 3, 4, 5, 6, 7, 0, 1)
|
||||
SHA256ROUND1(55, 0x682e6ff3, 1, 2, 3, 4, 5, 6, 7, 0)
|
||||
SHA256ROUND1(56, 0x748f82ee, 0, 1, 2, 3, 4, 5, 6, 7)
|
||||
SHA256ROUND1(57, 0x78a5636f, 7, 0, 1, 2, 3, 4, 5, 6)
|
||||
SHA256ROUND1(58, 0x84c87814, 6, 7, 0, 1, 2, 3, 4, 5)
|
||||
SHA256ROUND1(59, 0x8cc70208, 5, 6, 7, 0, 1, 2, 3, 4)
|
||||
SHA256ROUND1(60, 0x90befffa, 4, 5, 6, 7, 0, 1, 2, 3)
|
||||
SHA256ROUND1(61, 0xa4506ceb, 3, 4, 5, 6, 7, 0, 1, 2)
|
||||
SHA256ROUND1(62, 0xbef9a3f7, 2, 3, 4, 5, 6, 7, 0, 1)
|
||||
SHA256ROUND1(63, 0xc67178f2, 1, 2, 3, 4, 5, 6, 7, 0)
|
||||
|
||||
MOVL dig+0(FP), BP
|
||||
MOVL (0*4)(BP), AX // H0 = a + H0
|
||||
ADDL (0*4)(DI), AX
|
||||
MOVL AX, (0*4)(DI)
|
||||
MOVL AX, (0*4)(BP)
|
||||
MOVL (1*4)(BP), BX // H1 = b + H1
|
||||
ADDL (1*4)(DI), BX
|
||||
MOVL BX, (1*4)(DI)
|
||||
MOVL BX, (1*4)(BP)
|
||||
MOVL (2*4)(BP), CX // H2 = c + H2
|
||||
ADDL (2*4)(DI), CX
|
||||
MOVL CX, (2*4)(DI)
|
||||
MOVL CX, (2*4)(BP)
|
||||
MOVL (3*4)(BP), DX // H3 = d + H3
|
||||
ADDL (3*4)(DI), DX
|
||||
MOVL DX, (3*4)(DI)
|
||||
MOVL DX, (3*4)(BP)
|
||||
MOVL (4*4)(BP), AX // H4 = e + H4
|
||||
ADDL (4*4)(DI), AX
|
||||
MOVL AX, (4*4)(DI)
|
||||
MOVL AX, (4*4)(BP)
|
||||
MOVL (5*4)(BP), BX // H5 = f + H5
|
||||
ADDL (5*4)(DI), BX
|
||||
MOVL BX, (5*4)(DI)
|
||||
MOVL BX, (5*4)(BP)
|
||||
MOVL (6*4)(BP), CX // H6 = g + H6
|
||||
ADDL (6*4)(DI), CX
|
||||
MOVL CX, (6*4)(DI)
|
||||
MOVL CX, (6*4)(BP)
|
||||
MOVL (7*4)(BP), DX // H7 = h + H7
|
||||
ADDL (7*4)(DI), DX
|
||||
MOVL DX, (7*4)(DI)
|
||||
MOVL DX, (7*4)(BP)
|
||||
|
||||
ADDL $64, SI
|
||||
CMPL SI, 288(SP)
|
||||
JB loop
|
||||
|
||||
end:
|
||||
RET
|
||||
@ -2,7 +2,7 @@
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build amd64
|
||||
// +build 386 amd64
|
||||
|
||||
package sha256
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user