From 24408329a59bc2679bce4235ca4d58ac33c1dbfb Mon Sep 17 00:00:00 2001 From: Kris Kwiatkowski Date: Mon, 28 Sep 2020 21:03:08 +0100 Subject: [PATCH] Use bits.RotateLeft64 whenever possible --- hash/sha3/keccakf.go | 236 +++++++++++++++++++------------------ hash/sha3/keccakf_amd64.go | 3 +- hash/sha3/keccakf_amd64.s | 2 +- 3 files changed, 121 insertions(+), 120 deletions(-) diff --git a/hash/sha3/keccakf.go b/hash/sha3/keccakf.go index 46d03ed..b816759 100644 --- a/hash/sha3/keccakf.go +++ b/hash/sha3/keccakf.go @@ -2,10 +2,12 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build !amd64 appengine gccgo +// +build !amd64 appengine gccgo noasm package sha3 +import "math/bits" + // rc stores the round constants for use in the ι step. var rc = [24]uint64{ 0x0000000000000001, @@ -51,21 +53,21 @@ func keccakF1600(a *[25]uint64) { bc2 = a[2] ^ a[7] ^ a[12] ^ a[17] ^ a[22] bc3 = a[3] ^ a[8] ^ a[13] ^ a[18] ^ a[23] bc4 = a[4] ^ a[9] ^ a[14] ^ a[19] ^ a[24] - d0 = bc4 ^ (bc1<<1 | bc1>>63) - d1 = bc0 ^ (bc2<<1 | bc2>>63) - d2 = bc1 ^ (bc3<<1 | bc3>>63) - d3 = bc2 ^ (bc4<<1 | bc4>>63) - d4 = bc3 ^ (bc0<<1 | bc0>>63) + d0 = bc4 ^ bits.RotateLeft64(bc1, 1) + d1 = bc0 ^ bits.RotateLeft64(bc2, 1) + d2 = bc1 ^ bits.RotateLeft64(bc3, 1) + d3 = bc2 ^ bits.RotateLeft64(bc4, 1) + d4 = bc3 ^ bits.RotateLeft64(bc0, 1) bc0 = a[0] ^ d0 t = a[6] ^ d1 - bc1 = t<<44 | t>>(64-44) + bc1 = bits.RotateLeft64(t, 44) t = a[12] ^ d2 - bc2 = t<<43 | t>>(64-43) + bc2 = bits.RotateLeft64(t, 43) t = a[18] ^ d3 - bc3 = t<<21 | t>>(64-21) + bc3 = bits.RotateLeft64(t, 21) t = a[24] ^ d4 - bc4 = t<<14 | t>>(64-14) + bc4 = bits.RotateLeft64(t, 14) a[0] = bc0 ^ (bc2 &^ bc1) ^ rc[i] a[6] = bc1 ^ (bc3 &^ bc2) a[12] = bc2 ^ (bc4 &^ bc3) @@ -73,15 +75,15 @@ func keccakF1600(a *[25]uint64) { a[24] = bc4 ^ (bc1 &^ bc0) t = a[10] ^ d0 - bc2 = t<<3 | t>>(64-3) + bc2 = bits.RotateLeft64(t, 3) t = a[16] ^ d1 - bc3 = t<<45 | t>>(64-45) + bc3 = bits.RotateLeft64(t, 45) t = a[22] ^ d2 - bc4 = t<<61 | t>>(64-61) + bc4 = bits.RotateLeft64(t, 61) t = a[3] ^ d3 - bc0 = t<<28 | t>>(64-28) + bc0 = bits.RotateLeft64(t, 28) t = a[9] ^ d4 - bc1 = t<<20 | t>>(64-20) + bc1 = bits.RotateLeft64(t, 20) a[10] = bc0 ^ (bc2 &^ bc1) a[16] = bc1 ^ (bc3 &^ bc2) a[22] = bc2 ^ (bc4 &^ bc3) @@ -89,15 +91,15 @@ func keccakF1600(a *[25]uint64) { a[9] = bc4 ^ (bc1 &^ bc0) t = a[20] ^ d0 - bc4 = t<<18 | t>>(64-18) + bc4 = bits.RotateLeft64(t, 18) t = a[1] ^ d1 - bc0 = t<<1 | t>>(64-1) + bc0 = bits.RotateLeft64(t, 1) t = a[7] ^ d2 - bc1 = t<<6 | t>>(64-6) + bc1 = bits.RotateLeft64(t, 6) t = a[13] ^ d3 - bc2 = t<<25 | t>>(64-25) + bc2 = bits.RotateLeft64(t, 25) t = a[19] ^ d4 - bc3 = t<<8 | t>>(64-8) + bc3 = bits.RotateLeft64(t, 8) a[20] = bc0 ^ (bc2 &^ bc1) a[1] = bc1 ^ (bc3 &^ bc2) a[7] = bc2 ^ (bc4 &^ bc3) @@ -105,15 +107,15 @@ func keccakF1600(a *[25]uint64) { a[19] = bc4 ^ (bc1 &^ bc0) t = a[5] ^ d0 - bc1 = t<<36 | t>>(64-36) + bc1 = bits.RotateLeft64(t, 36) t = a[11] ^ d1 - bc2 = t<<10 | t>>(64-10) + bc2 = bits.RotateLeft64(t, 10) t = a[17] ^ d2 - bc3 = t<<15 | t>>(64-15) + bc3 = bits.RotateLeft64(t, 15) t = a[23] ^ d3 - bc4 = t<<56 | t>>(64-56) + bc4 = bits.RotateLeft64(t, 56) t = a[4] ^ d4 - bc0 = t<<27 | t>>(64-27) + bc0 = bits.RotateLeft64(t, 27) a[5] = bc0 ^ (bc2 &^ bc1) a[11] = bc1 ^ (bc3 &^ bc2) a[17] = bc2 ^ (bc4 &^ bc3) @@ -121,15 +123,15 @@ func keccakF1600(a *[25]uint64) { a[4] = bc4 ^ (bc1 &^ bc0) t = a[15] ^ d0 - bc3 = t<<41 | t>>(64-41) + bc3 = bits.RotateLeft64(t, 41) t = a[21] ^ d1 - bc4 = t<<2 | t>>(64-2) + bc4 = bits.RotateLeft64(t, 2) t = a[2] ^ d2 - bc0 = t<<62 | t>>(64-62) + bc0 = bits.RotateLeft64(t, 62) t = a[8] ^ d3 - bc1 = t<<55 | t>>(64-55) + bc1 = bits.RotateLeft64(t, 55) t = a[14] ^ d4 - bc2 = t<<39 | t>>(64-39) + bc2 = bits.RotateLeft64(t, 39) a[15] = bc0 ^ (bc2 &^ bc1) a[21] = bc1 ^ (bc3 &^ bc2) a[2] = bc2 ^ (bc4 &^ bc3) @@ -142,21 +144,21 @@ func keccakF1600(a *[25]uint64) { bc2 = a[2] ^ a[7] ^ a[12] ^ a[17] ^ a[22] bc3 = a[3] ^ a[8] ^ a[13] ^ a[18] ^ a[23] bc4 = a[4] ^ a[9] ^ a[14] ^ a[19] ^ a[24] - d0 = bc4 ^ (bc1<<1 | bc1>>63) - d1 = bc0 ^ (bc2<<1 | bc2>>63) - d2 = bc1 ^ (bc3<<1 | bc3>>63) - d3 = bc2 ^ (bc4<<1 | bc4>>63) - d4 = bc3 ^ (bc0<<1 | bc0>>63) + d0 = bc4 ^ bits.RotateLeft64(bc1, 1) + d1 = bc0 ^ bits.RotateLeft64(bc2, 1) + d2 = bc1 ^ bits.RotateLeft64(bc3, 1) + d3 = bc2 ^ bits.RotateLeft64(bc4, 1) + d4 = bc3 ^ bits.RotateLeft64(bc0, 1) bc0 = a[0] ^ d0 t = a[16] ^ d1 - bc1 = t<<44 | t>>(64-44) + bc1 = bits.RotateLeft64(t, 44) t = a[7] ^ d2 - bc2 = t<<43 | t>>(64-43) + bc2 = bits.RotateLeft64(t, 43) t = a[23] ^ d3 - bc3 = t<<21 | t>>(64-21) + bc3 = bits.RotateLeft64(t, 21) t = a[14] ^ d4 - bc4 = t<<14 | t>>(64-14) + bc4 = bits.RotateLeft64(t, 14) a[0] = bc0 ^ (bc2 &^ bc1) ^ rc[i+1] a[16] = bc1 ^ (bc3 &^ bc2) a[7] = bc2 ^ (bc4 &^ bc3) @@ -164,15 +166,15 @@ func keccakF1600(a *[25]uint64) { a[14] = bc4 ^ (bc1 &^ bc0) t = a[20] ^ d0 - bc2 = t<<3 | t>>(64-3) + bc2 = bits.RotateLeft64(t, 3) t = a[11] ^ d1 - bc3 = t<<45 | t>>(64-45) + bc3 = bits.RotateLeft64(t, 45) t = a[2] ^ d2 - bc4 = t<<61 | t>>(64-61) + bc4 = bits.RotateLeft64(t, 61) t = a[18] ^ d3 - bc0 = t<<28 | t>>(64-28) + bc0 = bits.RotateLeft64(t, 28) t = a[9] ^ d4 - bc1 = t<<20 | t>>(64-20) + bc1 = bits.RotateLeft64(t, 20) a[20] = bc0 ^ (bc2 &^ bc1) a[11] = bc1 ^ (bc3 &^ bc2) a[2] = bc2 ^ (bc4 &^ bc3) @@ -180,15 +182,15 @@ func keccakF1600(a *[25]uint64) { a[9] = bc4 ^ (bc1 &^ bc0) t = a[15] ^ d0 - bc4 = t<<18 | t>>(64-18) + bc4 = bits.RotateLeft64(t, 18) t = a[6] ^ d1 - bc0 = t<<1 | t>>(64-1) + bc0 = bits.RotateLeft64(t, 1) t = a[22] ^ d2 - bc1 = t<<6 | t>>(64-6) + bc1 = bits.RotateLeft64(t, 6) t = a[13] ^ d3 - bc2 = t<<25 | t>>(64-25) + bc2 = bits.RotateLeft64(t, 25) t = a[4] ^ d4 - bc3 = t<<8 | t>>(64-8) + bc3 = bits.RotateLeft64(t, 8) a[15] = bc0 ^ (bc2 &^ bc1) a[6] = bc1 ^ (bc3 &^ bc2) a[22] = bc2 ^ (bc4 &^ bc3) @@ -196,15 +198,15 @@ func keccakF1600(a *[25]uint64) { a[4] = bc4 ^ (bc1 &^ bc0) t = a[10] ^ d0 - bc1 = t<<36 | t>>(64-36) + bc1 = bits.RotateLeft64(t, 36) t = a[1] ^ d1 - bc2 = t<<10 | t>>(64-10) + bc2 = bits.RotateLeft64(t, 10) t = a[17] ^ d2 - bc3 = t<<15 | t>>(64-15) + bc3 = bits.RotateLeft64(t, 15) t = a[8] ^ d3 - bc4 = t<<56 | t>>(64-56) + bc4 = bits.RotateLeft64(t, 56) t = a[24] ^ d4 - bc0 = t<<27 | t>>(64-27) + bc0 = bits.RotateLeft64(t, 27) a[10] = bc0 ^ (bc2 &^ bc1) a[1] = bc1 ^ (bc3 &^ bc2) a[17] = bc2 ^ (bc4 &^ bc3) @@ -212,15 +214,15 @@ func keccakF1600(a *[25]uint64) { a[24] = bc4 ^ (bc1 &^ bc0) t = a[5] ^ d0 - bc3 = t<<41 | t>>(64-41) + bc3 = bits.RotateLeft64(t, 41) t = a[21] ^ d1 - bc4 = t<<2 | t>>(64-2) + bc4 = bits.RotateLeft64(t, 2) t = a[12] ^ d2 - bc0 = t<<62 | t>>(64-62) + bc0 = bits.RotateLeft64(t, 62) t = a[3] ^ d3 - bc1 = t<<55 | t>>(64-55) + bc1 = bits.RotateLeft64(t, 55) t = a[19] ^ d4 - bc2 = t<<39 | t>>(64-39) + bc2 = bits.RotateLeft64(t, 39) a[5] = bc0 ^ (bc2 &^ bc1) a[21] = bc1 ^ (bc3 &^ bc2) a[12] = bc2 ^ (bc4 &^ bc3) @@ -233,21 +235,21 @@ func keccakF1600(a *[25]uint64) { bc2 = a[2] ^ a[7] ^ a[12] ^ a[17] ^ a[22] bc3 = a[3] ^ a[8] ^ a[13] ^ a[18] ^ a[23] bc4 = a[4] ^ a[9] ^ a[14] ^ a[19] ^ a[24] - d0 = bc4 ^ (bc1<<1 | bc1>>63) - d1 = bc0 ^ (bc2<<1 | bc2>>63) - d2 = bc1 ^ (bc3<<1 | bc3>>63) - d3 = bc2 ^ (bc4<<1 | bc4>>63) - d4 = bc3 ^ (bc0<<1 | bc0>>63) + d0 = bc4 ^ bits.RotateLeft64(bc1, 1) + d1 = bc0 ^ bits.RotateLeft64(bc2, 1) + d2 = bc1 ^ bits.RotateLeft64(bc3, 1) + d3 = bc2 ^ bits.RotateLeft64(bc4, 1) + d4 = bc3 ^ bits.RotateLeft64(bc0, 1) bc0 = a[0] ^ d0 t = a[11] ^ d1 - bc1 = t<<44 | t>>(64-44) + bc1 = bits.RotateLeft64(t, 44) t = a[22] ^ d2 - bc2 = t<<43 | t>>(64-43) + bc2 = bits.RotateLeft64(t, 43) t = a[8] ^ d3 - bc3 = t<<21 | t>>(64-21) + bc3 = bits.RotateLeft64(t, 21) t = a[19] ^ d4 - bc4 = t<<14 | t>>(64-14) + bc4 = bits.RotateLeft64(t, 14) a[0] = bc0 ^ (bc2 &^ bc1) ^ rc[i+2] a[11] = bc1 ^ (bc3 &^ bc2) a[22] = bc2 ^ (bc4 &^ bc3) @@ -255,15 +257,15 @@ func keccakF1600(a *[25]uint64) { a[19] = bc4 ^ (bc1 &^ bc0) t = a[15] ^ d0 - bc2 = t<<3 | t>>(64-3) + bc2 = bits.RotateLeft64(t, 3) t = a[1] ^ d1 - bc3 = t<<45 | t>>(64-45) + bc3 = bits.RotateLeft64(t, 45) t = a[12] ^ d2 - bc4 = t<<61 | t>>(64-61) + bc4 = bits.RotateLeft64(t, 61) t = a[23] ^ d3 - bc0 = t<<28 | t>>(64-28) + bc0 = bits.RotateLeft64(t, 28) t = a[9] ^ d4 - bc1 = t<<20 | t>>(64-20) + bc1 = bits.RotateLeft64(t, 20) a[15] = bc0 ^ (bc2 &^ bc1) a[1] = bc1 ^ (bc3 &^ bc2) a[12] = bc2 ^ (bc4 &^ bc3) @@ -271,15 +273,15 @@ func keccakF1600(a *[25]uint64) { a[9] = bc4 ^ (bc1 &^ bc0) t = a[5] ^ d0 - bc4 = t<<18 | t>>(64-18) + bc4 = bits.RotateLeft64(t, 18) t = a[16] ^ d1 - bc0 = t<<1 | t>>(64-1) + bc0 = bits.RotateLeft64(t, 1) t = a[2] ^ d2 - bc1 = t<<6 | t>>(64-6) + bc1 = bits.RotateLeft64(t, 6) t = a[13] ^ d3 - bc2 = t<<25 | t>>(64-25) + bc2 = bits.RotateLeft64(t, 25) t = a[24] ^ d4 - bc3 = t<<8 | t>>(64-8) + bc3 = bits.RotateLeft64(t, 8) a[5] = bc0 ^ (bc2 &^ bc1) a[16] = bc1 ^ (bc3 &^ bc2) a[2] = bc2 ^ (bc4 &^ bc3) @@ -287,15 +289,15 @@ func keccakF1600(a *[25]uint64) { a[24] = bc4 ^ (bc1 &^ bc0) t = a[20] ^ d0 - bc1 = t<<36 | t>>(64-36) + bc1 = bits.RotateLeft64(t, 36) t = a[6] ^ d1 - bc2 = t<<10 | t>>(64-10) + bc2 = bits.RotateLeft64(t, 10) t = a[17] ^ d2 - bc3 = t<<15 | t>>(64-15) + bc3 = bits.RotateLeft64(t, 15) t = a[3] ^ d3 - bc4 = t<<56 | t>>(64-56) + bc4 = bits.RotateLeft64(t, 56) t = a[14] ^ d4 - bc0 = t<<27 | t>>(64-27) + bc0 = bits.RotateLeft64(t, 27) a[20] = bc0 ^ (bc2 &^ bc1) a[6] = bc1 ^ (bc3 &^ bc2) a[17] = bc2 ^ (bc4 &^ bc3) @@ -303,15 +305,15 @@ func keccakF1600(a *[25]uint64) { a[14] = bc4 ^ (bc1 &^ bc0) t = a[10] ^ d0 - bc3 = t<<41 | t>>(64-41) + bc3 = bits.RotateLeft64(t, 41) t = a[21] ^ d1 - bc4 = t<<2 | t>>(64-2) + bc4 = bits.RotateLeft64(t, 2) t = a[7] ^ d2 - bc0 = t<<62 | t>>(64-62) + bc0 = bits.RotateLeft64(t, 62) t = a[18] ^ d3 - bc1 = t<<55 | t>>(64-55) + bc1 = bits.RotateLeft64(t, 55) t = a[4] ^ d4 - bc2 = t<<39 | t>>(64-39) + bc2 = bits.RotateLeft64(t, 39) a[10] = bc0 ^ (bc2 &^ bc1) a[21] = bc1 ^ (bc3 &^ bc2) a[7] = bc2 ^ (bc4 &^ bc3) @@ -324,21 +326,21 @@ func keccakF1600(a *[25]uint64) { bc2 = a[2] ^ a[7] ^ a[12] ^ a[17] ^ a[22] bc3 = a[3] ^ a[8] ^ a[13] ^ a[18] ^ a[23] bc4 = a[4] ^ a[9] ^ a[14] ^ a[19] ^ a[24] - d0 = bc4 ^ (bc1<<1 | bc1>>63) - d1 = bc0 ^ (bc2<<1 | bc2>>63) - d2 = bc1 ^ (bc3<<1 | bc3>>63) - d3 = bc2 ^ (bc4<<1 | bc4>>63) - d4 = bc3 ^ (bc0<<1 | bc0>>63) + d0 = bc4 ^ bits.RotateLeft64(bc1, 1) + d1 = bc0 ^ bits.RotateLeft64(bc2, 1) + d2 = bc1 ^ bits.RotateLeft64(bc3, 1) + d3 = bc2 ^ bits.RotateLeft64(bc4, 1) + d4 = bc3 ^ bits.RotateLeft64(bc0, 1) bc0 = a[0] ^ d0 t = a[1] ^ d1 - bc1 = t<<44 | t>>(64-44) + bc1 = bits.RotateLeft64(t, 44) t = a[2] ^ d2 - bc2 = t<<43 | t>>(64-43) + bc2 = bits.RotateLeft64(t, 43) t = a[3] ^ d3 - bc3 = t<<21 | t>>(64-21) + bc3 = bits.RotateLeft64(t, 21) t = a[4] ^ d4 - bc4 = t<<14 | t>>(64-14) + bc4 = bits.RotateLeft64(t, 14) a[0] = bc0 ^ (bc2 &^ bc1) ^ rc[i+3] a[1] = bc1 ^ (bc3 &^ bc2) a[2] = bc2 ^ (bc4 &^ bc3) @@ -346,15 +348,15 @@ func keccakF1600(a *[25]uint64) { a[4] = bc4 ^ (bc1 &^ bc0) t = a[5] ^ d0 - bc2 = t<<3 | t>>(64-3) + bc2 = bits.RotateLeft64(t, 3) t = a[6] ^ d1 - bc3 = t<<45 | t>>(64-45) + bc3 = bits.RotateLeft64(t, 45) t = a[7] ^ d2 - bc4 = t<<61 | t>>(64-61) + bc4 = bits.RotateLeft64(t, 61) t = a[8] ^ d3 - bc0 = t<<28 | t>>(64-28) + bc0 = bits.RotateLeft64(t, 28) t = a[9] ^ d4 - bc1 = t<<20 | t>>(64-20) + bc1 = bits.RotateLeft64(t, 20) a[5] = bc0 ^ (bc2 &^ bc1) a[6] = bc1 ^ (bc3 &^ bc2) a[7] = bc2 ^ (bc4 &^ bc3) @@ -362,15 +364,15 @@ func keccakF1600(a *[25]uint64) { a[9] = bc4 ^ (bc1 &^ bc0) t = a[10] ^ d0 - bc4 = t<<18 | t>>(64-18) + bc4 = bits.RotateLeft64(t, 18) t = a[11] ^ d1 - bc0 = t<<1 | t>>(64-1) + bc0 = bits.RotateLeft64(t, 1) t = a[12] ^ d2 - bc1 = t<<6 | t>>(64-6) + bc1 = bits.RotateLeft64(t, 6) t = a[13] ^ d3 - bc2 = t<<25 | t>>(64-25) + bc2 = bits.RotateLeft64(t, 25) t = a[14] ^ d4 - bc3 = t<<8 | t>>(64-8) + bc3 = bits.RotateLeft64(t, 8) a[10] = bc0 ^ (bc2 &^ bc1) a[11] = bc1 ^ (bc3 &^ bc2) a[12] = bc2 ^ (bc4 &^ bc3) @@ -378,15 +380,15 @@ func keccakF1600(a *[25]uint64) { a[14] = bc4 ^ (bc1 &^ bc0) t = a[15] ^ d0 - bc1 = t<<36 | t>>(64-36) + bc1 = bits.RotateLeft64(t, 36) t = a[16] ^ d1 - bc2 = t<<10 | t>>(64-10) + bc2 = bits.RotateLeft64(t, 10) t = a[17] ^ d2 - bc3 = t<<15 | t>>(64-15) + bc3 = bits.RotateLeft64(t, 15) t = a[18] ^ d3 - bc4 = t<<56 | t>>(64-56) + bc4 = bits.RotateLeft64(t, 56) t = a[19] ^ d4 - bc0 = t<<27 | t>>(64-27) + bc0 = bits.RotateLeft64(t, 27) a[15] = bc0 ^ (bc2 &^ bc1) a[16] = bc1 ^ (bc3 &^ bc2) a[17] = bc2 ^ (bc4 &^ bc3) @@ -394,15 +396,15 @@ func keccakF1600(a *[25]uint64) { a[19] = bc4 ^ (bc1 &^ bc0) t = a[20] ^ d0 - bc3 = t<<41 | t>>(64-41) + bc3 = bits.RotateLeft64(t, 41) t = a[21] ^ d1 - bc4 = t<<2 | t>>(64-2) + bc4 = bits.RotateLeft64(t, 2) t = a[22] ^ d2 - bc0 = t<<62 | t>>(64-62) + bc0 = bits.RotateLeft64(t, 62) t = a[23] ^ d3 - bc1 = t<<55 | t>>(64-55) + bc1 = bits.RotateLeft64(t, 55) t = a[24] ^ d4 - bc2 = t<<39 | t>>(64-39) + bc2 = bits.RotateLeft64(t, 39) a[20] = bc0 ^ (bc2 &^ bc1) a[21] = bc1 ^ (bc3 &^ bc2) a[22] = bc2 ^ (bc4 &^ bc3) diff --git a/hash/sha3/keccakf_amd64.go b/hash/sha3/keccakf_amd64.go index 7886795..6be5f46 100644 --- a/hash/sha3/keccakf_amd64.go +++ b/hash/sha3/keccakf_amd64.go @@ -2,12 +2,11 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// +build amd64,!appengine,!gccgo +// +build amd64,!appengine,!gccgo,!noasm package sha3 // This function is implemented in keccakf_amd64.s. //go:noescape - func keccakF1600(a *[25]uint64) diff --git a/hash/sha3/keccakf_amd64.s b/hash/sha3/keccakf_amd64.s index f88533a..8b2bfdd 100644 --- a/hash/sha3/keccakf_amd64.s +++ b/hash/sha3/keccakf_amd64.s @@ -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,!appengine,!gccgo +// +build amd64,!appengine,!gccgo,!noasm // This code was translated into a form compatible with 6a from the public // domain sources at https://github.com/gvanas/KeccakCodePackage