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2018-11-01Merge #14377: check that a separator is found for psbt inputs, outputs, and ↵Wladimir J. van der Laan
global map 4fb3388db95f408566e43ebb9736842cfbff0a7d check that a separator is found for psbt inputs, outputs, and global map (Andrew Chow) Pull request description: Currently it doesn't make sure that a separator was found so PSBTs missing a trailing separator would still pass. This fixes that and adds a test case for it. It really only makes sense to check for the separator for the output maps as if an input or global map was missing a separator, the fields following it would be interpreted as belonging to the previous input or global map. However I have added the check for those two anyways to be consistent. Tree-SHA512: 50c0c08e201ba02494b369a4d36ddb73e6634eb5a4e4e201c4ef38fd2dbeea2c642b8a04d50c91615da61ecbfade37309e47431368f4b1064539c42015766b50
2018-11-01Merge #14197: [psbt] Convert non-witness UTXOs to witness if witness sig createdWladimir J. van der Laan
862d159d635c1de219d94e030b186a745fe28eb9 Add test for conversion from non-witness to witness UTXO (Pieter Wuille) f8c1714634445542a16ac01d128d8ad2b2810e19 Convert non-witness UTXOs to witness if witness sig created (Andrew Chow) Pull request description: If a witness signature was created when a non-witness UTXO is used, convert the non-witness UTXO to a witness one. Port of #14196 to master. Tree-SHA512: 2235eeb008ffa48e821628032d689e4a83bff6c29b93fa050ab2ee492b0e67b3a30f29a680d4a0e574e05c3a2f9edf0005e161fbe25b7aef2acd034a2424e2f2
2018-10-20Add key origin support to descriptorsPieter Wuille
2018-10-07Stop requiring imported pubkey to sign non-PKH schemesPieter Wuille
2018-10-03check that a separator is found for psbt inputs, outputs, and global mapAndrew Chow
2018-09-26doxygen: Fix member commentsMarcoFalke
2018-09-22Convert non-witness UTXOs to witness if witness sig createdAndrew Chow
If a witness signature was created when a non-witness UTXO is used, convert the non-witness UTXO to a witness one.
2018-09-11Merge #13558: Drop unused GetType() from CSizeComputerWladimir J. van der Laan
893628be0166b4096b6e52f516e0f65bb63a75a2 Drop minor GetSerializeSize template (Ben Woosley) da74db0940720407fafaf3582bbaf9c81a4d3b4d Drop unused GetType() from CSizeComputer (Ben Woosley) Pull request description: Based on conversation in #13462, it seems the serialization `GetType` has very narrow use/effect. In every case except for `CAddress`, which specifically relates to a network peer's address, not a wallet address etc., the serialized representation of an object is irrespective of its destination / type. This removes the unused `GetType` method from `CSizeComputer` as a step to further narrowing that use. Tree-SHA512: e72b8e9e5160396691e05aeaee3aba5a57935a75bd5005cfcc7fb51c936f3d1728a397f999da5c36696506dd815fafa5c738f3894df8864f25f91f639eba9c3d
2018-09-11Drop minor GetSerializeSize templateBen Woosley
Now that `GetType()` is not propagated, the benefits are not worth the code.
2018-09-11Drop unused GetType() from CSizeComputerBen Woosley
2018-09-06Merge #14096: Add reference documentation for descriptors languageWladimir J. van der Laan
2b5d6f8df24b381d35b75187c97ae0cc9f7c3ed0 Replace duplcate reference with reference to reference doc (Pieter Wuille) 89709db7a2710456011eac9dcd6a60d5e87b97ae Adjust TODO link (Pieter Wuille) 9254ffcf2d910ecb0f9ecbeef6d40a2008a44870 Add descriptor reference documentation (Pieter Wuille) Pull request description: Tree-SHA512: 1ca0d537f9bcbb23266e9a4a02a60013ef8309958fb701f638283887585b5ddea6bc9dab859454ec3a373b1a12a4fd69836e7030417bb2ca43fef26b104c0d65
2018-09-05Replace duplcate reference with reference to reference docPieter Wuille
2018-09-04Fix typos reported by codespellpracticalswift
2018-08-28Merge #13723: PSBT key path cleanupsWladimir J. van der Laan
917353c8b0eff4cd95f9a5f7719f6756bb8338b1 Make SignPSBTInput operate on a private SignatureData object (Pieter Wuille) cad5dd2368109ec398a3b79c8b9e94dfd23f0845 Pass HD path data through SignatureData (Pieter Wuille) 03a99586a398ee38f40c3b72d24c6a2ba4b88579 Implement key origin lookup in CWallet (Pieter Wuille) 3b01efa0d1bf3d23d1b7b7e518849f1fc26314f9 [MOVEONLY] Move ParseHDKeypath to utilstrencodings (Pieter Wuille) 81e1dd5ce1a32114a38691ec6b55e72ab04dbbb1 Generalize PublicOnlySigningProvider into HidingSigningProvider (Pieter Wuille) 84f1f1bfdf900cd28099e428441aa42f9d11a0ed Make SigningProvider expose key origin information (Pieter Wuille) 611ab307fbd8b6f8f7ffc1d569bb86d1f9cb4e92 Introduce KeyOriginInfo for fingerprint + path (Pieter Wuille) Pull request description: This PR adds "key origin" (master fingeprint + key path) information to what is exposed from `SigningProvider`s, allowing this information to be used by the generic PSBT code instead of having the RPC pull it directly from the wallet. This is also a preparation to having PSBT interact with output descriptors, which can then directly expose key origin information for the scripts they generate. Tree-SHA512: c718382ba8ba2d6fc9a32c062bd4cff08b6f39b133838aa03115c39aeca0f654c7cc3ec72d87005bf8306e550824cd8eb9d60f0bd41784a3e22e17b2afcfe833
2018-08-25Merge #13429: Return the script type from SolverWladimir J. van der Laan
984d72ec659361d8c1a6f3c6864e839a807817a7 Return the script type from Solver (Ben Woosley) Pull request description: Because false is synonymous with TX_NONSTANDARD, this conveys the same information and makes the handling explicitly based on script type, simplifying each call site. Prior to this change it was common for the return value to be ignored, or for the return value and TX_NONSTANDARD to be redundantly handled. Tree-SHA512: 31864f856b8cb75f4b782d12678070e8b1cfe9665c6f57cfb25e7ac8bcea8a22f9a78d7c8cf0101c841f2a612400666fb91798bffe88de856e98b873703b0965
2018-08-14Merge #13917: Additional safety checks in PSBT signerWladimir J. van der Laan
5df6f089b53c5b5859e5a3454c026447e4752f82 More tests of signer checks (Andrew Chow) 7c8bffdc24e005c3044a9a80bbc227b2a39b8605 Test that a non-witness script as witness utxo is not signed (Andrew Chow) 8254e9950f67d750c7f5905bfdef526d825965ed Additional sanity checks in SignPSBTInput (Pieter Wuille) c05712cb590c8c76729a71d75a290c67ae9e3c06 Only wipe wrong UTXO type data if overwritten by wallet (Pieter Wuille) Pull request description: The current PSBT signing code can end up producing a non-segwit signature, while only the UTXO being spent is provided in the PSBT (as opposed to the entire transaction being spent). This may be used to trick a user to incorrectly decide a transaction has the semantics he intends to sign. Fix this by refusing to sign if there is any mismatch between the provided data and what is being signed. Tree-SHA512: b55790d79d8166e05513fc4c603a982a33710e79dc3c045060cddac6b48a1be3a28ebf8db63f988b6567b15dd27fd09bbaf48846e323c8635376ac20178956f4
2018-08-13Serialize non-witness utxo as a non-witness tx but always deserialize as witnessAndrew Chow
Strip out the witnesses when serializing the non-witness utxo. However witness serializations are allowed, so make sure we always deserialize as witness.
2018-08-13Fix PSBT deserialization of 0-input transactionsAndrew Chow
0-input transactions can be ambiguously deserialized as being witness transactions. Since the unsigned transaction is never serialized as a witness transaction as it has no witnesses, we should always deserialize it as a non-witness transaction and set the serialization flags as such. Also always serialize the unsigned transaction as a non-witness transaction.
2018-08-13Make SignPSBTInput operate on a private SignatureData objectPieter Wuille
2018-08-13Pass HD path data through SignatureDataPieter Wuille
2018-08-13Generalize PublicOnlySigningProvider into HidingSigningProviderPieter Wuille
2018-08-13Make SigningProvider expose key origin informationPieter Wuille
2018-08-13Introduce KeyOriginInfo for fingerprint + pathPieter Wuille
2018-08-13Additional sanity checks in SignPSBTInputPieter Wuille
2018-08-13Merge #13534: Don't assert(foo()) where foo() has side effectsMarcoFalke
6ad0328f1c Don't assert(foo()) where foo has side effects (practicalswift) Pull request description: Don't `assert(foo())` where `foo` has side effects. From `assert(3)`: > If the macro `NDEBUG` is defined at the moment `<assert.h>` was last included, the macro `assert()` generates no code, and hence does nothing at all. Bitcoin currently cannot be compiled without assertions, but we shouldn't rely on that. Tree-SHA512: 28cff0c6d1c2fb612ca58c9c94142ed01c5cfd0a2fecb8e59cdb6c270374b215d952ed3491d921d84dc1b439fa49da4f0e75e080f6adcbc6b0e08be14e54c170
2018-08-13Merge #13666: Always create signatures with Low R valuesWladimir J. van der Laan
e306be742932d4ea5aca0ea4768e54b2fc3dc6a0 Use 72 byte dummy signatures when watching only inputs may be used (Andrew Chow) 48b1473c898129a99212e2db36c61cf93625ea17 Use 71 byte signature for DUMMY_SIGNATURE_CREATOR (Andrew Chow) 18dfea0dd082af18dfb02981b7ee1cd44d514388 Always create 70 byte signatures with low R values (Andrew Chow) Pull request description: When creating signatures for transactions, always make one which has a 32 byte or smaller R and 32 byte or smaller S value. This results in signatures that are always less than 71 bytes (32 byte R + 32 byte S + 6 bytes DER + 1 byte sighash) with low R values. In most cases, the signature will be 71 bytes. Because R is not mutable in the same way that S is, a low R value can only be found by trying different nonces. RFC 6979 for deterministic nonce generation has the option to specify additional entropy, so we simply use that and add a uin32_t counter which we increment in order to try different nonces. Nonces are sill deterministically generated as the nonce used will the be the first one where the counter results in a nonce that results in a low R value. Because different nonces need to be tried, time to produce a signature does increase. On average, it takes twice as long to make a signature as two signatures need to be created, on average, to find one with a low R. Having a fixed size signature makes size calculations easier and also saves half a byte of transaction size, on average. DUMMY_SIGNATURE_CREATOR has been modified to produce 71 byte dummy signatures instead of 72 byte signatures. Tree-SHA512: 3cd791505126ce92da7c631856a97ba0b59e87d9c132feff6e0eef1dc47768e81fbb38bfbe970371bedf9714b7f61a13a5fe9f30f962c81734092a4d19a4ef33
2018-08-09Use 72 byte dummy signatures when watching only inputs may be usedAndrew Chow
With watching only inputs, we do not know how large the signatures for those inputs will be as their signers may not have implemented 71 byte signatures. Thus we estimate their fees using the 72 byte dummy signature to ensure that we pay enough fees. This only effects fundrawtransaction when includeWatching is true.
2018-08-09Use 71 byte signature for DUMMY_SIGNATURE_CREATORAndrew Chow
Changes DUMMY_SIGNATURE_CREATOR to create 71 byte dummy signatures. Update comments to reflect this change
2018-08-08Merge #13780: 0.17: Pre-branch maintenanceWladimir J. van der Laan
3fc20632a3ad30809356a58d2cf0ea4a4ad4cec3 qt: Set BLOCK_CHAIN_SIZE = 220 (DrahtBot) 2b6a2f4a28792f2fe9dc1be843b1ff1ecae35e8a Regenerate manpages (DrahtBot) eb7daf4d600eeb631427c018a984a77a34aca66e Update copyright headers to 2018 (DrahtBot) Pull request description: Some trivial maintenance to avoid having to do it again after the 0.17 branch off. (The scripts to do this are in `./contrib/`) Tree-SHA512: 16b2af45e0351b1c691c5311d48025dc6828079e98c2aa2e600dc5910ee8aa01858ca6c356538150dc46fe14c8819ed8ec8e4ec9a0f682b9950dd41bc50518fa
2018-08-01Merge #13697: Support output descriptors in scantxoutsetWladimir J. van der Laan
f6b7fc349ccf9cfbeb7e91e19c20e2a2fcc9026f Support h instead of ' in hardened descriptor paths (Pieter Wuille) fddea672eb8f63012f2e9ce04fa477e5d4140750 Add experimental warning to scantxoutset (Jonas Schnelli) 6495849bfd362d6a2f128bac5982fa9e3e2e3396 [QA] Extend tests to more combinations (Pieter Wuille) 1af237faefc316bd708e25d6901ee6f17b706e57 [QA] Add xpub range tests in scantxoutset tests (Jonas Schnelli) 151600bb4972f7bab4ed4a03d1f67c38e081fefe Swap in descriptors support into scantxoutset (Pieter Wuille) 0652c3284fe12941b28624dbbf5e0862c5d0dbc3 Descriptor tests (Pieter Wuille) fe8a7dcd78cfeedc9a7c705e91384f793822912b Output descriptors module (Pieter Wuille) e54d76044b3a2c625e53f2116c5f6a7c40105d5d Add simple FlatSigningProvider (Pieter Wuille) 29943a904a11607787d28b1f4288f500bd076dde Add more methods to Span class (Pieter Wuille) Pull request description: As promised, here is an implementation of my output descriptor concept (https://gist.github.com/sipa/e3d23d498c430bb601c5bca83523fa82) and integration within the `scantxoutset` RPC that was just added through #12196. It changes the RPC to use descriptors for everything; I hope the interface is simple enough to encompass all use cases. It includes support for P2PK, P2PKH, P2WPKH, P2SH, P2WSH, multisig, xpubs, xprvs, and chains of keys - combined in every possible way. Tree-SHA512: 63b54a96e7a72f5b04a8d645b8517d43ecd6a65a41f9f4e593931ce725a8845ab0baa1e9db6a7243190d8ac841f6e7e2f520d98c539312d78f7fd687d2c7b88f
2018-07-30Merge #13554: Remove unused function argumentsWladimir J. van der Laan
bd9d0690dcc62bb6dc01bda38f63fa965003b8b9 Remove unused argument to WitnessSigOps(...) (practicalswift) d1d7cfebd2c22bdec9ed96d8a389c00d7f898ff8 Remove unused argument to DefaultOptions(...) (practicalswift) 05dbb0c042ba647bf83c15f059c41620e2164337 Remove unused argument to ThreadHTTP(...) (practicalswift) Pull request description: Remove unused function arguments. Tree-SHA512: 9933b6d34ff00a32d2f06a2e542d1225bdfb2c960599f01a8ff0427324b3529db49f19ffdbf54059acbbef5ca87f4c3169e97082169022022cd1e3afa7aaa56d
2018-07-27Support h instead of ' in hardened descriptor pathsPieter Wuille
2018-07-27Output descriptors modulePieter Wuille
2018-07-27Add simple FlatSigningProviderPieter Wuille
2018-07-27Update copyright headers to 2018DrahtBot
2018-07-25Merge #13721: Bugfixes for BIP 174 combining and deserializationWladimir J. van der Laan
fad231ad41e12b7047deb64220942ca8cb8357bc Fix merging of global unknown data in PSBTs (Andrew Chow) 41df035ee1694715ee1e0f89b08ac8c73987807b Check that PSBT keys are the correct length (Andrew Chow) Pull request description: This PR fixes a few bugs that were found and adds tests checking for these errors. Specifically: - Single byte keys are checked to actually be one byte. - Unknown global data must be merged when combining two PSBTs. Tree-SHA512: c0e7b4bc607d510cc005aaa7c0813ee58c5467ab7ce4adce485522dfeee92b1af3d29fe89df778b0ea812bb3827e085b30e04d4f4ebcefd8364d809573991332
2018-07-24scripted-diff: Remove trailing whitespacesJoão Barbosa
-BEGIN VERIFY SCRIPT- sed --in-place'' --regexp-extended 's/[[:space:]]+$//g' $(git grep -I --files-with-matches --extended-regexp '[[:space:]]+$' -- src test ':!*.svg' ':!src/crypto/sha256_sse4*' ':!src/leveldb' ':!src/qt/locale' ':!src/secp256k1' ':!src/univalue') -END VERIFY SCRIPT-
2018-07-23Merge #13719: Avoid creating a temporary vector for size-prefixed elementsWladimir J. van der Laan
84547fa6d408bdda1685f6d5972232bb19d97a7d Avoid creating a temporary vector for size-prefixed elements (Pieter Wuille) Pull request description: This is a simple improvement to the PSBT serialization code, avoiding the need for temporary vectors everywhere. Tree-SHA512: 9f7243b7169ec8ba00ffad31af03c016ab84e4f76ebac810167f91f5e8008f3827ad59fbcee0cb2bd2334fc26466eb222404af24e7fb6ec040fd78229ebe0fd1
2018-07-22Return the script type from SolverBen Woosley
Because false is synonymous with TX_NONSTANDARD, this conveys the same information and makes the handling explicitly based on script type, simplifying each call site. Prior to this change it was common for the return value to be ignored, or for the return value and TX_NONSTANDARD to be redundantly handled.
2018-07-22Merge #13633: Drop dead code from StacksWladimir J. van der Laan
5617840392dad8c00c0e4216f1a536daaa9dd4bd Drop dead code from Stacks (Ben Woosley) Pull request description: Stacks is local to this file, and only used in DataFromTransaction, so it's easy to confirm this code is unused. Tree-SHA512: cc680c99f9b31cb56db70f453087d642f83906ce594c07a6bf3e61427cfbee41441495d440b240419ba3386582cf0670c0999b2f51e7fd56b00e0a0f3f618845
2018-07-22Merge #13691: Remove redundant variables, statements and forward declarationsMarcoFalke
3dee4cc509 Remove redundant statement (practicalswift) 99be644966 Remove redundant unused variables (practicalswift) 66ed242343 Remove redundant forward declaration (practicalswift) Pull request description: Remove redundant … * ~access modifiers,~ * forward declarations, * unused variables, * statements, and * ~return types from lambdas.~ Tree-SHA512: 328bb7d9c45398e44ecbee32095b6376879470dfddbc2180e037620d8390d524b51d7fda112fd58a078715e04432b24dd6998a2459f3550aa0498aa68de866d4
2018-07-19Fix merging of global unknown data in PSBTsAndrew Chow
Actually merge the global unknown key-value pairs. Add a test for merging unknown key-value pairs.
2018-07-19Check that PSBT keys are the correct lengthAndrew Chow
Checks that all of the one byte type keys are actually one byte and throw an error if they are not. Add tests for each type to check for this behavior.
2018-07-19Avoid creating a temporary vector for size-prefixed elementsPieter Wuille
2018-07-18Merge #13557: BIP 174 PSBT Serializations and RPCsWladimir J. van der Laan
020628e3a4e88e36647eaf92bac4b3552796ac6a Tests for PSBT (Andrew Chow) a4b06fb42eb0ad94e562ca839391b57e69285136 Create wallet RPCs for PSBT (Andrew Chow) c27fe419efb3b6588c400d764122ffb33375e028 Create utility RPCs for PSBT (Andrew Chow) 8b5ef2793748065727a9a2498805ae5b269dcb4f SignPSBTInput wrapper function (Andrew Chow) 58a8e28918025c28f19ba19cbaa4a72374162942 Refactor transaction creation and transaction funding logic (Andrew Chow) e9d86a43ad8b1ab83b324e9a7a64c43a61337501 Methods for interacting with PSBT structs (Andrew Chow) 12bcc64f277f642ece03c25653e726f2276f0d51 Add pubkeys and whether input was witness to SignatureData (Andrew Chow) 41c607f09badb2c3ed58ff6fb17a8ebbef2cdabd Implement PSBT Structures and un/serialization methods per BIP 174 (Andrew Chow) Pull request description: This Pull Request fully implements the [updated](https://github.com/bitcoin/bips/pull/694) BIP 174 specification. It is based upon #13425 which implements the majority of the signing logic. BIP 174 specifies a binary transaction format which contains the information necessary for a signer to produce signatures for the transaction and holds the signatures for an input while the input does not have a complete set of signatures. This PR contains structs for PSBT, serialization, and deserialzation code. Some changes to `SignatureData` have been made to support detection of UTXO type and storing public keys. *** Many RPCs have been added to handle PSBTs. `walletprocesspsbt` takes a PSBT format transaction, updates the PSBT with any inputs related to this wallet, signs, and finalizes the transaction. There is also an option to not sign and just update. `walletcreatefundedpsbt` creates a PSBT from user provided data in the same form as createrawtransaction. It also funds the transaction and takes an options argument in the same form as `fundrawtransaction`. The resulting PSBT is blank with no input or output data filled in. It is analogous to a combination of `createrawtransaction` and `fundrawtransaction` `decodepsbt` takes a PSBT and decodes it to JSON. It is analogous to `decoderawtransaction` `combinepsbt` takes multiple PSBTs for the same tx and combines them. It is analogous to `combinerawtransaction` `finalizepsbt` takes a PSBT and finalizes the inputs. If all inputs are final, it extracts the network serialized transaction and returns that instead of a PSBT unless instructed otherwise. `createpsbt` is like `createrawtransaction` but for PSBTs instead of raw transactions. `convertpsbt` takes a network serialized transaction and converts it into a psbt. The resulting psbt will lose all signature data and an explicit flag must be set to allow transactions with signature data to be converted. *** This supersedes #12136 Tree-SHA512: 1ac7a79e5bc669933f0a6fcc93ded55263fdde9e8c144a30266b13ef9f62aacf43edd4cbca1ffbe003090b067e9643c9298c79be69d7c1b10231b32acafb6338
2018-07-18Remove redundant unused variablespracticalswift
2018-07-16Create wallet RPCs for PSBTAndrew Chow
walletprocesspsbt takes a PSBT format transaction, updates the PSBT with any inputs related to this wallet, signs, and finalizes the transaction. There is also an option to not sign and just update. walletcreatefundedpsbt creates a PSBT from user provided data in the same form as createrawtransaction. It also funds the transaction and takes an options argument in the same form as fundrawtransaction. The resulting PSBT is blank with no input or output data filled in.
2018-07-13SignPSBTInput wrapper functionAndrew Chow
The SignPSBTInput function takes a PSBTInput, SignatureData, SigningProvider, and other data necessary for signing. It fills the SignatureData with data from the PSBTInput, retrieves the UTXO from the PSBTInput, signs and finalizes the input if possible, and then extracts the results from the SignatureData and puts them back into the PSBTInput.
2018-07-13Methods for interacting with PSBT structsAndrew Chow
Added methods which move data to/from SignaturData objects to PSBTInput and PSBTOutput objects. Added sanity checks for PSBTs as a whole which are done immediately after deserialization. Added Merge methods to merge a PSBT into another one.
2018-07-13Add pubkeys and whether input was witness to SignatureDataAndrew Chow
Stores pubkeys in SignatureData and retrieves them when using GetPubKey(). Stores whether the signatures in a SignatureData are for a witness input.