derek/gem5
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
2da4a2cdca3a2cd7cea8aaa6038be6527ec90dff
gem5/src/arch/arm/qarma.cc
Daniel R. Carvalho 974a47dfb9 misc: Adopt the gem5 namespace 
Apply the gem5 namespace to the codebase.

Some anonymous namespaces could theoretically be removed,
but since this change's main goal was to keep conflicts
at a minimum, it was decided not to modify much the
general shape of the files.

A few missing comments of the form "// namespace X" that
occurred before the newly added "} // namespace gem5"
have been added for consistency.

std out should not be included in the gem5 namespace, so
they weren't.

ProtoMessage has not been included in the gem5 namespace,
since I'm not familiar with how proto works.

Regarding the SystemC files, although they belong to gem5,
they actually perform integration between gem5 and SystemC;
therefore, it deserved its own separate namespace.

Files that are automatically generated have been included
in the gem5 namespace.

The .isa files currently are limited to a single namespace.
This limitation should be later removed to make it easier
to accomodate a better API.

Regarding the files in util, gem5:: was prepended where
suitable. Notice that this patch was tested as much as
possible given that most of these were already not
previously compiling.

Change-Id: Ia53d404ec79c46edaa98f654e23bc3b0e179fe2d
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/46323
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
Tested-by: kokoro <noreply+kokoro@google.com>
2021-07-01 19:08:24 +00:00

400 lines
11 KiB
C++
Raw Blame History

// -*- mode:c++ -*-
// Copyright (c) 2020 Metempsy Technology Consulting
// All rights reserved
//
// The license below extends only to copyright in the software and shall
// not be construed as granting a license to any other intellectual
// property including but not limited to intellectual property relating
// to a hardware implementation of the functionality of the software
// licensed hereunder. You may use the software subject to the license
// terms below provided that you ensure that this notice is replicated
// unmodified and in its entirety in all distributions of the software,
// modified or unmodified, in source code or in binary form.
//
// 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 copyright holders 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER 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.
#include "arch/arm/qarma.hh"
#include <array>
#include "base/bitfield.hh"
namespace gem5
{
using namespace QARMA;
uint8_t
QARMA::rotCell(uint8_t incell, int amount)
{
uint8_t res = ((incell << amount) | (incell >> (4-amount)))& 0xF;
return res;
}
uint8_t
QARMA::tweakCellInvRot(uint8_t incell)
{
uint8_t outcell = 0x0;
outcell = incell << 1;
uint8_t t = 0x1 & (incell ^ (incell>>3));
outcell |= t;
return outcell & 0xF;
}
uint8_t
QARMA::tweakCellRot(uint8_t incell)
{
uint8_t outcell = 0x0;
outcell = incell >> 1;
uint8_t t = 0x1 & (incell ^ (incell>>1));
outcell |= t<<3;
return outcell & 0xF;
}
BIT64
QARMA::tweakInvShuffle(BIT64 indata)
{
BIT64 outdata = 0x0;
outdata.b0 = tweakCellInvRot(indata.b12);
outdata.b1 = indata.b13;
outdata.b2 = indata.b5;
outdata.b3 = indata.b6;
outdata.b4 = indata.b0;
outdata.b5 = indata.b1;
outdata.b6 = tweakCellInvRot(indata.b2);
outdata.b7 = indata.b3;
outdata.b8 = tweakCellInvRot(indata.b7);
outdata.b9 = tweakCellInvRot(indata.b15);
outdata.b10 = tweakCellInvRot(indata.b14);
outdata.b11 = tweakCellInvRot(indata.b4);
outdata.b12 = indata.b8;
outdata.b13 = indata.b9;
outdata.b14 = indata.b10;
outdata.b15 = tweakCellInvRot(indata.b11);
return outdata;
}
BIT64
QARMA::tweakShuffle(BIT64 indata)
{
BIT64 outdata = 0x0;
outdata.b0 = indata.b4;
outdata.b1 = indata.b5;
outdata.b2 = tweakCellRot(indata.b6);
outdata.b3 = indata.b7;
outdata.b4 = tweakCellRot(indata.b11);
outdata.b5 = indata.b2;
outdata.b6 = indata.b3;
outdata.b7 = tweakCellRot(indata.b8);
outdata.b8 = indata.b12;
outdata.b9 = indata.b13;
outdata.b10 = indata.b14;
outdata.b11 = tweakCellRot(indata.b15);
outdata.b12 = tweakCellRot(indata.b0);
outdata.b13 = indata.b1;
outdata.b14 = tweakCellRot(indata.b10);
outdata.b15 = tweakCellRot(indata.b9);
return outdata;
}
BIT64
QARMA::PACCellInvShuffle(BIT64 indata)
{
BIT64 outdata = 0x0;
outdata.b0 = indata.b3;
outdata.b1 = indata.b6;
outdata.b2 = indata.b12;
outdata.b3 = indata.b9;
outdata.b4 = indata.b14;
outdata.b5 = indata.b11;
outdata.b6 = indata.b1;
outdata.b7 = indata.b4;
outdata.b8 = indata.b8;
outdata.b9 = indata.b13;
outdata.b10 = indata.b7;
outdata.b11 = indata.b2;
outdata.b12 = indata.b5;
outdata.b13 = indata.b0;
outdata.b14 = indata.b10;
outdata.b15 = indata.b15;
return outdata;
}
BIT64
QARMA::PACCellShuffle(BIT64 indata)
{
BIT64 outdata = 0x0;
outdata.b0 = indata.b13;
outdata.b1 = indata.b6;
outdata.b2 = indata.b11;
outdata.b3 = indata.b0;
outdata.b4 = indata.b7;
outdata.b5 = indata.b12;
outdata.b6 = indata.b1;
outdata.b7 = indata.b10;
outdata.b8 = indata.b8;
outdata.b9 = indata.b3;
outdata.b10 = indata.b14;
outdata.b11 = indata.b5;
outdata.b12 = indata.b2;
outdata.b13 = indata.b9;
outdata.b14 = indata.b4;
outdata.b15 = indata.b15;
return outdata;
}
uint64_t
QARMA::PACInvSub(uint64_t tInput)
{
// This is a 4-bit substitution from the PRINCE-family cipher
uint64_t t_output = 0x0;
for (int i=15; i>=0; i--) {
t_output = t_output << 4;
uint8_t b = (tInput >> i*4 ) & 0xF;
switch ( b ) {
case 0x0:
t_output |= 0x5;
break;
case 0x1:
t_output |= 0xe;
break;
case 0x2:
t_output |= 0xd;
break;
case 0x3:
t_output |= 0x8;
break;
case 0x4:
t_output |= 0xa;
break;
case 0x5:
t_output |= 0xb;
break;
case 0x6:
t_output |= 0x1;
break;
case 0x7:
t_output |= 0x9;
break;
case 0x8:
t_output |= 0x2;
break;
case 0x9:
t_output |= 0x6;
break;
case 0xa:
t_output |= 0xf;
break;
case 0xb:
t_output |= 0x0;
break;
case 0xc:
t_output |= 0x4;
break;
case 0xd:
t_output |= 0xc;
break;
case 0xe:
t_output |= 0x7;
break;
case 0xf:
t_output |= 0x3;
break;
default:
//unreachable
break;
}
}
return t_output;
}
uint64_t
QARMA::PACSub(uint64_t tInput){
// This is a 4-bit substitution from the PRINCE-family cipher
uint64_t t_output = 0x0;
for (int i=15; i>=0; i--) {
t_output = t_output << 4;
uint8_t b = (tInput >> i*4 ) & 0xF;
switch ( b ) {
case 0x0:
t_output |= 0xb;
break;
case 0x1:
t_output |= 0x6;
break;
case 0x2:
t_output |= 0x8;
break;
case 0x3:
t_output |= 0xf;
break;
case 0x4:
t_output |= 0xc;
break;
case 0x5:
t_output |= 0x0;
break;
case 0x6:
t_output |= 0x9;
break;
case 0x7:
t_output |= 0xe;
break;
case 0x8:
t_output |= 0x3;
break;
case 0x9:
t_output |= 0x7;
break;
case 0xa:
t_output |= 0x4;
break;
case 0xb:
t_output |= 0x5;
break;
case 0xc:
t_output |= 0xd;
break;
case 0xd:
t_output |= 0x2;
break;
case 0xe:
t_output |= 0x1;
break;
case 0xf:
t_output |= 0xa;
break;
default:
//unreachable
break;
}
}
return t_output;
}
uint64_t
QARMA::PACMult(uint64_t tInput)
{
uint64_t t_output = 0;
for (int i=0;i<=3; i++) {
uint8_t b8 = (tInput >> (4*(i+8))) & 0xF;
uint8_t b4 = (tInput >> (4*(i+4))) & 0xF;
uint8_t b12 = (tInput >> (4*(i+12))) & 0xF;
uint8_t b0 = (tInput >> (4*(i))) & 0xF;
uint64_t t0 = rotCell(b8, 1) ^ rotCell(b4, 2);
t0 = t0 ^ rotCell(b0, 1);
uint64_t t1 = rotCell(b12, 1) ^ rotCell(b4, 1);
t1 = t1 ^ rotCell(b0, 2);
uint64_t t2 = rotCell(b12, 2) ^ rotCell(b8, 1);
t2 = t2 ^ rotCell(b0, 1);
uint64_t t3 = rotCell(b12, 1) ^ rotCell(b8, 2);
t3 = t3 ^ rotCell(b4, 1);
t_output |= (t3 << (4*i));
t_output |= (t2 << (4*(i+4)));
t_output |= (t1 << (4*(i+8)));
t_output |= (t0 << (4*(i+12)));
}
return t_output;
}
BIT64
QARMA::computePAC(BIT64 data, BIT64 modifier, BIT64 key0, BIT64 key1)
{
BIT64 workingval;
BIT64 runningmod;
BIT64 roundkey;
BIT64 modk0;
std::array<BIT64, 5> RC;
RC[0] = (BIT64) 0x0000000000000000;
RC[1] = (BIT64) 0x13198A2E03707344;
RC[2] = (BIT64) 0xA4093822299F31D0;
RC[3] = (BIT64) 0x082EFA98EC4E6C89;
RC[4] = (BIT64) 0x452821E638D01377;
const BIT64 alpha = 0xC0AC29B7C97C50DD;
//modk0 = key0<0>:key0<63:2>:
modk0 = (key0 & 0x1) << 63;
modk0 = modk0 | ((key0 & ~0x3) >> 1);
modk0 = modk0 | ((key0.b15>>3) ^ ((key0.b0 & 0x2)>>1));
runningmod = modifier;
workingval = data^key0;
for (int i=0; i<=4; i++) {
roundkey = key1 ^ runningmod;
workingval = workingval ^ roundkey;
workingval = workingval ^ RC[i];
if (i > 0) {
workingval = PACCellShuffle(workingval);
workingval = PACMult(workingval);
}
workingval = PACSub(workingval);
runningmod = tweakShuffle(runningmod);
}
roundkey = modk0 ^ runningmod;
workingval = workingval ^ roundkey;
workingval = PACCellShuffle(workingval);
workingval = PACMult(workingval);
workingval = PACSub(workingval);
workingval = PACCellShuffle(workingval);
workingval = PACMult(workingval);
workingval = key1 ^ workingval;
workingval = PACCellInvShuffle(workingval);
workingval = PACInvSub(workingval);
workingval = PACMult(workingval);
workingval = PACCellInvShuffle(workingval);
workingval = workingval ^ key0;
workingval = workingval ^ runningmod;
for (int i=0; i<=4; i++) {
workingval = PACInvSub(workingval);
if (i < 4) {
workingval = PACMult(workingval);
workingval = PACCellInvShuffle(workingval);
}
runningmod = tweakInvShuffle(runningmod);
roundkey = key1 ^ runningmod;
workingval = workingval ^ RC[4-i];
workingval = workingval ^ roundkey;
workingval = workingval ^ alpha;
}
workingval = workingval ^ modk0;
return workingval;
}
} // namespace gem5
Reference in New Issue View Git Blame Copy Permalink