| 344 | } |
| 345 | |
| 346 | bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreator& creator, const CScript& fromPubKey, SignatureData& sigdata, unsigned int additional_flags) |
| 347 | { |
| 348 | if (sigdata.complete) return true; |
| 349 | |
| 350 | // We will already activate SIGHASH_RANGEPROOF for signing. This means that |
| 351 | // users using the flag before it activates will produce invalid signatures. |
| 352 | unsigned int signFlags = SCRIPT_SIGHASH_RANGEPROOF; |
| 353 | unsigned int verifyFlags = STANDARD_SCRIPT_VERIFY_FLAGS | SCRIPT_SIGHASH_RANGEPROOF | additional_flags; |
| 354 | |
| 355 | std::vector<valtype> result; |
| 356 | TxoutType whichType; |
| 357 | bool solved = SignStep(provider, creator, fromPubKey, result, whichType, SigVersion::BASE, sigdata, signFlags); |
| 358 | bool P2SH = false; |
| 359 | CScript subscript; |
| 360 | |
| 361 | if (solved && whichType == TxoutType::SCRIPTHASH) |
| 362 | { |
| 363 | // Solver returns the subscript that needs to be evaluated; |
| 364 | // the final scriptSig is the signatures from that |
| 365 | // and then the serialized subscript: |
| 366 | subscript = CScript(result[0].begin(), result[0].end()); |
| 367 | sigdata.redeem_script = subscript; |
| 368 | solved = solved && SignStep(provider, creator, subscript, result, whichType, SigVersion::BASE, sigdata, signFlags) && whichType != TxoutType::SCRIPTHASH; |
| 369 | P2SH = true; |
| 370 | } |
| 371 | |
| 372 | if (solved && whichType == TxoutType::WITNESS_V0_KEYHASH) |
| 373 | { |
| 374 | CScript witnessscript; |
| 375 | witnessscript << OP_DUP << OP_HASH160 << ToByteVector(result[0]) << OP_EQUALVERIFY << OP_CHECKSIG; |
| 376 | TxoutType subType; |
| 377 | solved = solved && SignStep(provider, creator, witnessscript, result, subType, SigVersion::WITNESS_V0, sigdata, signFlags); |
| 378 | sigdata.scriptWitness.stack = result; |
| 379 | sigdata.witness = true; |
| 380 | result.clear(); |
| 381 | } |
| 382 | else if (solved && whichType == TxoutType::WITNESS_V0_SCRIPTHASH) |
| 383 | { |
| 384 | CScript witnessscript(result[0].begin(), result[0].end()); |
| 385 | sigdata.witness_script = witnessscript; |
| 386 | TxoutType subType; |
| 387 | solved = solved && SignStep(provider, creator, witnessscript, result, subType, SigVersion::WITNESS_V0, sigdata, signFlags) && subType != TxoutType::SCRIPTHASH && subType != TxoutType::WITNESS_V0_SCRIPTHASH && subType != TxoutType::WITNESS_V0_KEYHASH; |
| 388 | result.push_back(std::vector<unsigned char>(witnessscript.begin(), witnessscript.end())); |
| 389 | sigdata.scriptWitness.stack = result; |
| 390 | sigdata.witness = true; |
| 391 | result.clear(); |
| 392 | } else if (whichType == TxoutType::WITNESS_V1_TAPROOT && !P2SH) { |
| 393 | sigdata.witness = true; |
| 394 | if (solved) { |
| 395 | sigdata.scriptWitness.stack = std::move(result); |
| 396 | } |
| 397 | result.clear(); |
| 398 | } else if (solved && whichType == TxoutType::WITNESS_UNKNOWN) { |
| 399 | sigdata.witness = true; |
| 400 | } |
| 401 | |
| 402 | if (!sigdata.witness) sigdata.scriptWitness.stack.clear(); |
| 403 | if (P2SH) { |