~registry/dolphin-emu/triforce

addr ^= (table6[tmp&0x3F]^table4[(tmp>>8)&0x3F]^table2[(tmp>>16)&0x3F]^table0[(tmp>>24)&0x3F]^table7[tmp2&0x3F]^table5[(tmp2>>8)&0x3F]^table3[(tmp2>>16)&0x3F]^table1[(tmp2>>24)&0x3F]);

324

325

tmp = (_rotr(addr,4)^seeds[i++]);

326

tmp2 = (addr^seeds[i++]);

327

val ^= (table6[tmp&0x3F]^table4[(tmp>>8)&0x3F]^table2[(tmp>>16)&0x3F]^table0[(tmp>>24)&0x3F]^table7[tmp2&0x3F]^table5[(tmp2>>8)&0x3F]^table3[(tmp2>>16)&0x3F]^table1[(tmp2>>24)&0x3F]);

328

}

329

unscramble2(&addr,&val);

330

setcode(code,val,addr);

331

}

332

333

bool getbitstring(u32 *ctrl, u32 *out, u8 len)

334

{

335

u32 tmp=(ctrl[0]+(ctrl[1]<<2));

336

337

*out = 0;

338

while (len--)

339

{

340

if (ctrl[2] > 0x1F)

341

{

342

ctrl[2] = 0;

343

ctrl[1]++;

344

tmp = (ctrl[0]+(ctrl[1]<<2));

345

}

346

if (ctrl[1] >= ctrl[3]) return false;

347

*out = ((*out<<1) | ((tmp >> (0x1F-ctrl[2])) & 1));

348

ctrl[2]++;

349

}

350

return true;

351

}

352

353

bool batchdecrypt(u32 *codes, u16 size)

354

{

355

u32 tmp,*ptr=codes;

356

u32 tmparray[4] = { 0 },tmparray2[8] = { 0 };

357

358

// Not required

359

//if (size & 1) return 0;

360

//if (!size) return 0;

361

362

tmp = (size >> 1);

363

while (tmp--)

364

{

365

decryptcode(genseeds,ptr);

366

ptr+=2;

367

}

368

369

tmparray[0] = *codes;

370

tmparray[1] = 0;

371

tmparray[2] = 4; // Skip crc

372

tmparray[3] = size;

373

getbitstring(tmparray,tmparray2+1,11); // Game id

374

getbitstring(tmparray,tmparray2+2,17); // Code id

375

getbitstring(tmparray,tmparray2+3,1); // Master code

376

getbitstring(tmparray,tmparray2+4,1); // Unknown

377

getbitstring(tmparray,tmparray2+5,2); // Region

378

379

// Grab gameid and region from the last decrypted code

380

// Maybe check this against dolphin's GameID? - "code is for wrong game" type msg

381

//gameid = tmparray2[1];

382

//region = tmparray2[5];

383

384

tmp = codes[0];

385

codes[0] &= 0x0FFFFFFF;

386

if ((tmp>>28) != verifycode(codes,size)) return false;

387

388

return true;

389

390

// Unfinished (so says Parasyte :p )

391

}

392

393

int GetVal(const char *flt, char chr)

394

{

395

int ret = (int)(strchr(flt,chr) - flt);

396

switch (ret)

397

{

398

case 32: // 'I'

399

case 33: // 'L'

400

ret = 1;

401

break;

402

case 34: // 'O'

403

ret = 0;

404

break;

405

case 35: // 'S'

406

ret = 5;

407

break;

408

}

409

return ret;

410

}

411

412

int alphatobin(u32 *dst, std::vector<std::string> alpha, int size)

413

{

414

int i,j=0,k;

415

int ret=0,org=(size+1);

416

u32 bin[2];

417

u8 parity;

418

419

while (size)

420

{

421

bin[0]=0;

422

for (i = 0; i < 6; i++)

423

{

424

bin[0] |= (GetVal(filter,alpha[j>>1][i]) << (((5-i)*5)+2));

425

}

426

bin[0] |= (GetVal(filter,alpha[j>>1][6]) >> 3);

427

dst[j++] = bin[0];

428

429

bin[1]=0;

430

for (i = 0; i < 6; i++)

431

{

432

bin[1] |= (GetVal(filter,alpha[j>>1][i+6]) << (((5-i)*5)+4));

433

}

434

bin[1] |= (GetVal(filter,alpha[j>>1][12]) >> 1);

435

dst[j++] = bin[1];

436

437

//verify parity bit

438

k=0;

439

parity=0;

440

for (i = 0; i < 64; i++)

441

{

442

if (i == 32) k++;

443

parity ^= (bin[k] >> (i-(k<<5)));

444

}

445

if ((parity&1) != (GetVal(filter,alpha[(j-2)>>1][12])&1)) ret=(org-size);

446

447

size--;

448

}

449

450

return ret;

451

}

452

453

void DecryptARCode(std::vector<std::string> vCodes, std::vector<AREntry> &ops)

454

{

455

// The almighty buildseeds() function!! without this, the crypto routines are useless

456

buildseeds();

457

458

u32 uCodes[1200];

459

u32 i,ret;

460

461

for(i = 0; i < vCodes.size(); ++i)

462

{

463

transform(vCodes[i].begin(), vCodes[i].end(), vCodes[i].begin(), toupper);

464

//PanicAlert("Encrypted AR Code\n%s", vCodes[i].c_str());

465

}

466

467

if ((ret=alphatobin(uCodes, vCodes, (int)vCodes.size())))

468

{

469

PanicAlertT("Action Replay Code Decryption Error:\nParity Check Failed\n\nCulprit Code:\n%s", vCodes[ret].c_str());

470

batchdecrypt(uCodes, (u16)vCodes.size()<<1);

471

}

472

else if (!batchdecrypt(uCodes, (u16)vCodes.size()<<1))

473

{

474

// Commented out since we just send the code anyways and hope for the best XD

475

//PanicAlert("Action Replay Code Decryption Error:\nCRC Check Failed\n\n"

476

// "First Code in Block(should be verification code):\n%s", vCodes[0].c_str());

477

478

for (i = 0; i < (vCodes.size()<<1); i+=2)

479

{

480

AREntry op;

481

op.cmd_addr = uCodes[i];

482

op.value = uCodes[i+1];

483

ops.push_back(op);

484

//PanicAlert("Decrypted AR Code without verification code:\n%08X %08X", uCodes[i], uCodes[i+1]);

485

}

486

}

487

else

488

{

489

// Skip passing the verification code back

490

for (i = 2; i < (vCodes.size()<<1); i+=2)

491

{

492

AREntry op;

493

op.cmd_addr = uCodes[i];

494

op.value = uCodes[i+1];

495

ops.push_back(op);

496

//PanicAlert("Decrypted AR Code:\n%08X %08X", uCodes[i], uCodes[i+1]);

497

}

498

}

499

}

500

501

} //namespace ActionReplay

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