f201ba59ff Refactor: Split up CWallet and LegacyScriptPubKeyMan and classes (Andrew Chow)
6702048f91 MOVEONLY: Move key handling code out of wallet to keyman file (Andrew Chow)
ab053ec6d1 Move wallet enums to walletutil.h (Andrew Chow)
Pull request description:
Moves key management functions into a new class LegacyScriptPubKeyMan. First two commits are move-only commits which move stuff out of wallet.{h/cpp} and into newly created scriptpubkeyman.{h/cpp}. Third commit changes several things in CWallet to use LegacyScriptPubKeyMan.
First step in the wallet boxes refactor. Note that LegacyScriptPubKeyMan and ScriptPubKeyMan cannot be used standalone yet and are still very much tied into CWallet with both accessing functions within each other. This PR is to help reduce review burden.
ACKs for top commit:
Sjors:
Code review ACK f201ba5.
promag:
Code review ACK f201ba59ff.
ryanofsky:
Code review ACK f201ba59ff
MarcoFalke:
ACK f201ba59ff
Tree-SHA512: bdc0d8595a06233fe003afcf968a38e0e8cc584a6a89c5bcd05309ac29dca852391802d46763ef81a108d146d0f40c79ea5438e87234ed12b4b8360c9aec94c0
Start moving wallet and ismine code to scriptpubkeyman.h, scriptpubkeyman.cpp
The easiest way to review this commit is to run:
git log -p -n1 --color-moved=dimmed_zebra
And check that everything is a move (other than includes and copyrights comments).
This commit is move-only and doesn't change code or affect behavior.
7d8d3e6a2a Add tests for util/vector.h's Cat and Vector (Pieter Wuille)
e65e61c812 Add some general std::vector utility functions (Pieter Wuille)
Pull request description:
This is another general improvement extracted from #16800 .
Two functions are added are:
* Vector(arg1,arg2,arg3,...) constructs a vector with the specified arguments as elements. The vector's type is derived from the arguments. If some of the arguments are rvalue references, they will be moved into place rather than copied (which can't be achieved using list initialization).
* Cat(vector1,vector2) returns a concatenation of the two vectors, efficiently moving elements when relevant.
Vector generalizes (and replaces) the `Singleton` function in src/descriptor.cpp, and `Cat` replaces the function in bech32.cpp
ACKs for top commit:
laanwj:
ACK 7d8d3e6a2a
MarcoFalke:
ACK 7d8d3e6a2a (enjoyed reading the tests, but did not compile)
Tree-SHA512: 92325f14e90d7e7d9d920421979aec22bb0d730e0291362b4326cccc76f9c2d865bec33a797c5c0201773468c3773cb50ce52c8eee4c1ec1a4d10db5cf2b9d2a
Added are:
* Vector(arg1,arg2,arg3,...) constructs a vector with the specified
arguments as elements. The vector's type is derived from the
arguments. If some of the arguments are rvalue references, they
will be moved into place rather than copied (which can't be achieved
using list initialization).
* Cat(vector1,vector2) returns a concatenation of the two vectors,
efficiently moving elements when relevant.
Vector generalizes (and replaces) the Singleton function in
src/descriptor.cpp, and Cat replaces the Cat function in bech32.cpp
15ac916642 doc: Doxygen-friendly descriptor.h comments (Jon Layton)
Pull request description:
Closes#16942.
- Make `Descriptor` overview subtext of `Interface for parsed descriptor objects.`
- Conform to `@param[in, out] argname: Info` in parameter comments. Present in code: feb162d500/src/net_processing.cpp (L1001)
- Remove redundant argument type, `in` vs `out` mentions
- Removed unnecessary backticks around `IsSolvable()`, since Doxygen builds a link to the known function's docs
- Add backticks to refer to `argname`s
`descriptor.cpp` has more documentation, but Doxygen's output doesn't include anything inside unnamed namespaces for some reason. Tried to access them via searchbar.
Top commit has no ACKs.
Tree-SHA512: 587cc7596de46358a08b0321a7cf08a08785945715dbdce8945d837e1bee0664d1e11b1e47b7be85c4f35262f7ea173fb1f6202efcacc2023e2c6b0bd44133b3
bb36372b8f test: add unit tests for Span-parsing helpers (Sebastian Falbesoner)
5e69aeec3f Add documenting comments to spanparsing.h (Pieter Wuille)
230d43fdbc Abstract out some of the descriptor Span-parsing helpers (Pieter Wuille)
Pull request description:
As suggested here: https://github.com/bitcoin/bitcoin/pull/16800#issuecomment-531605482.
This moves the Span parsing functions out of the descriptor module, making them more easily usable for other parsers (in particular, in preparation for miniscript parsing).
ACKs for top commit:
MarcoFalke:
ACK bb36372b8f
Tree-SHA512: b5c5c11a9bc3f0a1c2c4cfa22755654ecfb8d4b69da0dc1fb9f04e1556dc0f6ffd87ad153600963279ac465d587d7971b53d240ced802d12693682411ac73deb
73aaf4ecf8 Make SignatureExtractorChecker private to its own file (Ben Woosley)
Pull request description:
~If we add a CTxIn constructor to SignatureData, then constructing the
SignatureData directly is no more verbose than calling DataFromTransaction,
and grants the caller additional flexibiliy in how to provide the CTxIn.~
A simple change to enhance encapsulation.
ACKs for top commit:
MarcoFalke:
utACK 73aaf4ecf8
laanwj:
ACK 73aaf4ecf8
Tree-SHA512: f7eafbce22b0e9917a8487e88d1f5a1061f2a0959ae1a097cbd9c8ea0d774edfb807da56813cb5fb26f6ca98499a0604a8ff024c198a7c8dc755164de66d972a
0c62e3aa73 New regression testing for CVE-2018-17144, CVE-2012-2459, and CVE-2010-5137. (lucash-dev)
38bfca6bb2 Added comments referencing multiple CVEs in tests and production code. (lucash-dev)
Pull request description:
This functional test includes two scenarios that test for regressions of vulnerabilities, but they are only briefly described. There are freely available documents explaining in detail the issues, but without explicit mentions, the developer trying to maintain the code needs an additional step of digging in commit history and PR conversations to figure it out.
Added comments to explicitly mention CVE-2018-17144 and CVE-2012-2459, for more complete documentation.
This improves developer experience by making understanding the tests easier.
ACKs for top commit:
laanwj:
ACK 0c62e3aa73, checked the CVE numbers, thanks for adding documentation
Tree-SHA512: 3ee05351745193b8b959e4a25d50f25a693b2d24b0732ed53cf7d5882df40b5dd0f1877bd5c69cffb921d4a7acf9deb3cc1160b96dc730d9b5984151ad06b7c9
Some failure conditions implicitly fail by failing some other check.
But the error messages are more helpful if they say explicitly what
actually caused the failure, so add those as failure conditions and
errors.
2e68ffaf20 [doc] descriptor: explain GetPubKey() usage with cached public key (Sjors Provoost)
2290269759 scripted-diff: rename DescriptorImpl m_script_arg to m_subdescriptor_arg (Sjors Provoost)
Pull request description:
I found the name `m_script_arg` to be confusing while reviewing https://github.com/bitcoin/bitcoin/pull/14646#discussion_r240677238. @sipa let me know if `m_subdescriptor_arg` is completely wrong.
I also added an explanation of why we call `GetPubKey` when we don't ask it for a public key.
ACKs for top commit:
laanwj:
ACK 2e68ffaf20
Tree-SHA512: 06698e9a91cdda93c043a82732793f0ad3cd91daa2513565953e9fa048d5573322fb534e9d0ea9ab736e6366be5921e2b8699c4f4b3693edab48039aaae06f78
93ce4a0b6f Move WatchOnly stuff from SigningProvider to CWallet (Andrew Chow)
8f5b81e6ed Remove CCryptoKeyStore and move all of it's functionality into CWallet (Andrew Chow)
37a79a4fcc Move various SigningProviders to signingprovider.{cpp,h} (Andrew Chow)
16f8096e91 Move KeyOriginInfo to its own header file (Andrew Chow)
d9becff4e1 scripted-diff: rename CBasicKeyStore to FillableSigningProvider (Andrew Chow)
a913e3f2fb Move HaveKey static function from keystore to rpcwallet where it is used (Andrew Chow)
c7797ec655 Remove CKeyStore and squash into CBasicKeyStore (Andrew Chow)
1b699a5083 Add HaveKey and HaveCScript to SigningProvider (Andrew Chow)
Pull request description:
This PR compresses the `CWallet` chain of inheritance from 5 classes to 3 classes. `CBasicKeyStore` is renamed to `FillableSigningProvider` and some parts of it (the watchonly parts) are moved into `CWallet`. `CKeyStore` and `CCrypoKeyStore` are completely removed. `CKeyStore`'s `Have*` functions are moved into `SigningProvider` and the `Add*` moved into `FillableSigningProvider`, thus allowing it to go away entirely. `CCryptoKeyStore`'s functionality is moved into `CWallet`. The new inheritance chain is:
```
SigningProvider -> FillableSigningProvider -> CWallet
```
`SigningProvider` now is the class the provides keys and scripts and indicates whether keys and scripts are present. `FillableSigningProvider` allows keys and scripts to be added to the signing provider via `Add*` functions. `CWallet` handles all of the watchonly stuff (`AddWatchOnly`, `HaveWatchOnly`, `RemoveWatchOnly` which were previously in `CKeyStore`) and key encryption (previously in `CCryptoKeyStore`).
Implements the 2nd [prerequisite](https://github.com/bitcoin-core/bitcoin-devwiki/wiki/Wallet-Class-Structure-Changes#cwallet-subclass-stack) from the wallet restructure.
ACKs for top commit:
Sjors:
re-ACK 93ce4a0; it keeps `EncryptSecret`, `DecryptSecret` and `DecryptKey` in `wallet/crypter.cpp`, but makes them not static. It improves alphabetical includes, reorders some function definitions, fixes commit message, brings back lost code comment.
instagibbs:
utACK 93ce4a0b6f
Tree-SHA512: 393dfd0623ad2dac38395eb89b862424318d6072f0b7083c92a0d207fd032c48b284f5f2cb13bc492f34557de350c5fee925da02e47daf011c5c6930a721b6d3
Moves all of the various SigningProviders out of sign.{cpp,h} and
keystore.{cpp,h}. As such, keystore.{cpp,h} is also removed.
Includes and the Makefile are updated to reflect this. Includes were largely
changed using:
git grep -l "keystore.h" | xargs sed -i -e 's;keystore.h;script/signingprovider.h;g'
e1a55690e6 Delete error-prone CScript constructor (Gregory Sanders)
Pull request description:
The behavior of this constructor is not the expected behavior compared to the other constructors which directly interpret the vector as a CScript, rather than serialize it into a new CScript. It has only four uses in the entire codebase. Delete this constructor and replace its four uses with the more clear serialization construction.
ACKs for top commit:
Empact:
ACK e1a55690e6
sipa:
Concept and code review ACK e1a55690e6, but I'd like to make sure we have tests covering the FindAndDelete usage.
Tree-SHA512: b6721e343c867ca401a80ec87c25939d7f1fc798f3bf7e5feb0ea6f8280eecb6bd65afc8286912c76ff8119ccea50ad7726b1a4137cae70c9d4fed7d960e10d3
26fe9b9909 Add support for descriptors to utxoupdatepsbt (Pieter Wuille)
3135c1a2d2 Abstract out UpdatePSBTOutput from FillPSBT (Pieter Wuille)
fb90ec3c33 Abstract out EvalDescriptorStringOrObject from scantxoutset (Pieter Wuille)
eaf4f88734 Abstract out IsSegWitOutput from utxoupdatepsbt (Pieter Wuille)
Pull request description:
This adds a descriptors argument to the `utxoupdatepsbt` RPC. This means:
* Input and output scripts and keys will be filled in when known.
* P2SH-witness inputs will be filled in from the UTXO set when a descriptor is provided that shows they're spending segwit outputs.
This also moves some (newly) shared code to separate functions: `UpdatePSBTOutput` (an analogue to `SignPSBTInput`), `IsSegWitOutput`, and `EvalDescriptorStringOrObject` (implementing the string or object notation parsing used in `scantxoutset`).
ACKs for top commit:
jnewbery:
utACK 26fe9b9909
laanwj:
utACK 26fe9b9909 (will hold merging until response to promag's comments)
promag:
ACK 26fe9b9, checked refactors and tests look comprehensive. Still missing a release note but can be added later.
Tree-SHA512: 1d833b7351b59d6c5ded6da399ff371a8a2a6ad04c0a8f90e6e46105dc737fa6f2740b1e5340280d59e01f42896c40b720c042f44417e38dfbee6477b894b245
5ebc6b0eb2 bitcoind: update -avoidpartialspends description to account for auto-enable for avoid_reuse wallets (Karl-Johan Alm)
ada258f8c8 doc: release notes for avoid_reuse (Karl-Johan Alm)
27669551da wallet: enable avoid_partial_spends by default if avoid_reuse is set (Karl-Johan Alm)
8f2e208f7c test: add test for avoidreuse feature (Karl-Johan Alm)
0bdfbd34cf wallet/rpc: add 'avoid_reuse' option to RPC commands (Karl-Johan Alm)
f904723e0d wallet/rpc: add setwalletflag RPC and MUTABLE_WALLET_FLAGS (Karl-Johan Alm)
8247a0da3a wallet: enable avoid_reuse feature (Karl-Johan Alm)
eec15662fa wallet: avoid reuse flags (Karl-Johan Alm)
58928098c2 wallet: make IsWalletFlagSet() const (Karl-Johan Alm)
129a5bafd9 wallet: rename g_known_wallet_flags constant to KNOWN_WALLET_FLAGS (Karl-Johan Alm)
Pull request description:
Add a new wallet flag called `avoid_reuse` which, when enabled, will keep track of when a specific destination has been spent from, and will actively "blacklist" any new UTXOs which send to an already-spent-from destination.
This improves privacy, as a payer could otherwise begin tracking a payee's wallet by regularly peppering a known UTXO with dust outputs, which would then be scooped up and used in payments by the payee, allowing the payer to map out (1) the inputs owned by the payee and (2) the destinations to which the payee is making payments.
This replaces #10386 and together with the (now merged) #12257 it addresses #10065 in full. The concerns raised in https://github.com/bitcoin/bitcoin/pull/10386#issuecomment-302361381 are also addressed due to #12257.
~~Note: this builds on top of #15780.~~ (merged)
ACKs for commit 5ebc6b:
jnewbery:
ACK 5ebc6b0eb
laanwj:
Concept and code-review ACK 5ebc6b0eb2
meshcollider:
Code review ACK 5ebc6b0eb2
achow101:
ACK 5ebc6b0eb2 modulo above nits
Tree-SHA512: fdef45826af544cbbb45634ac367852cc467ec87081d86d08b53ca849e588617e9a0a255b7e7bb28692d15332de58d6c3d274ac003355220e4213d7d9070742e
53b7de629d Add test for dumping the private key imported from descriptor (MeshCollider)
2857bc4a64 Extend importmulti descriptor tests (MeshCollider)
81a884bbd0 Import private keys from descriptor with importmulti if provided (MeshCollider)
a4d1bd1a29 Add private key derivation functions to descriptors (MeshCollider)
Pull request description:
~This is based on #14491, review the last 3 commits only.~
Currently, descriptors have an Expand() function which returns public keys and scripts for a specific index of a ranged descriptor. But the private key for a specific index is not given. This allows private keys for specific indices to be derived. This also allows those keys to be imported through the `importmulti` RPC rather than having to provide them separately.
ACKs for commit 53b7de:
achow101:
ACK 53b7de629d
Tree-SHA512: c060bc01358a1adc76d3d470fefc2bdd39c837027f452e9bc4bd2e726097e1ece4af9d5627efd942a5f8819271e15ba54f010b169b50a9435a1f0f40fd1cebf3
This commit adds comments referencing multiple CVEs both in production and test code.
CVEs covered in this commit:
CVE-2010-5137
CVE-2010-5139
CVE-2010-5141
CVE-2012-1909
CVE-2012-2459
CVE-2012-3789
CVE-2018-17144
This is not a pure refactor; additional functionality is added in
IsSegWitOutput which lets it recurse into P2SH when a
SigningProvider is provided that knows about the inner script.
78e407ad0c GetKeyBirthTimes should return key ids, not destinations (Gregory Sanders)
70946e7fee Replace CScriptID and CKeyID in CTxDestination with dedicated types (Gregory Sanders)
Pull request description:
The current usage seems to be an overloading of meanings. `CScriptID` is used in the wallet as a lookup key, as well as a destination, and `CKeyID` likewise. Instead, have all destinations be dedicated types.
New types:
`CScriptID`->`ScriptHash`
`CKeyID`->`PKHash`
ACKs for commit 78e407:
ryanofsky:
utACK 78e407ad0c. Only changes are removing extra CScriptID()s and fixing the test case.
Sjors:
utACK 78e407a
meshcollider:
utACK 78e407ad0c
Tree-SHA512: 437f59fc3afb83a40540da3351507aef5aed44e3a7f15b01ddad6226854edeee762ff0b0ef336fe3654c4cd99a205cef175211de8b639abe1130c8a6313337b9
c9e6e7ed7 wallet: add cachable amounts for caching credit/debit values (Karl-Johan Alm)
Pull request description:
This is a refactoring that will make #13756 a lot cleaner and straight-forward, since it adds another combination to the pile (watch-only * spendable * reused).
It's also a nice change in general.
Tree-SHA512: 6c876d58bbffd5cb85ef632dea4fd6afed163904bbde5efdb307fa119af178ed3cb5df047255da7e9a9136fed876922f1116fce61a3710f308c72275f9b7d18b
fd637be8d2 Add checksums to descriptors.md (Pieter Wuille)
be62903c41 Make descriptor checksums mandatory in deriveaddresses and importmulti (Pieter Wuille)
b52cb63688 Add getdescriptorinfo to compute checksum (Pieter Wuille)
3b40bff988 Descriptor checksum (Pieter Wuille)
Pull request description:
This adds support for a descriptor-specific 8-character checksum.
Descriptors may optionally be suffixed with a `#` plus these 8 checksum characters. Any descriptor that contains a `#` at the end must be followed by a valid checksum. If the `#` is missing entirely, it is valid without checksum.
All RPCs are updated to report descriptors that include the checksum. On input, they are optional except in `deriveaddress` and `importmulti`, which require descriptors which include a checksum.
A new RPC is also added to analyse descriptors (`getdescriptorinfo`), which can be used to compute the checksum for a descriptor without.
Tree-SHA512: a8294b09155eb6c67fbc178b5e2d3fbc0e9bec8b6de57a13f8835550d51c2cb32a428b3c9a188ded42b454d594e9305edbd4797906b755de77a8f33c79165f6b
540729ef4b Implement analyzepsbt RPC and tests (Andrew Chow)
77542cf2a5 Move PSBT UTXO fetching to a separate method (Andrew Chow)
cb40b3abd4 Figure out what is missing during signing (Andrew Chow)
08f749c914 Implement joinpsbts RPC and tests (Andrew Chow)
7344a7b998 Implement utxoupdatepsbt RPC and tests (Andrew Chow)
Pull request description:
This PR adds 3 new utility RPCs for interacting with PSBTs.
`utxoupdatepsbt` updates a PSBT with UTXO information from the node. It only works with witness UTXOs because full transactions (as would be needed for non-witness UTXOs) are not available unless txindex is enabled.
`joinpsbts` joins the inputs from multiple distinct PSBTs into one PSBT. e.g. if PSBT 1 has inputs 1 and 2, and PSBT 2 has inputs 3 and 4, `joinpsbts` would create a new PSBT with inputs 1, 2, 3, and 4.
`analyzepsbt` analyzes a PSBT and determines the current state of it and all of its inputs, and the next step that needs to be done.
Tree-SHA512: 3c1fa302201abca76a8901d0c2be7b4ccbce334d989533c215f8b3e50e22f2f018ce6209544b26789f58f5980a253c0655111e1e20d47d5656e0414c64891a5c
When signing an input, figure out what was requested for but was unable
to be found and store it in a SignatureData.
Return this information in SignPSBTInput.
Store the master key fingerprint and derivation path in the
key metadata. hdKeypath is kept to indicate the seed and for
backwards compatibility, but all key derivation path output
uses the key origin info instead of hdKeypath.
Creates new files util/bip32.h and util/bip32.cpp for containing
BIP 32 stuff.
Moves FormatKeyPath from descriptor.cpp to util/bip32.
Adds a wrapper around it to prepent the 'm' for when just the
BIP 32 style keypath is needed.
Move non-wallet PSBT code to src/psbt.{h,cpp}, and PSBT wallet code to
src/wallet/psbtwallet.{h,cpp}. This commit contains only code movement (and
adjustments to includes and Makefile.am.)
This commit makes the minimal changes necessary to fix compilation once CTransaction(const CMutableTransaction &tx) is made explicit. In each case an explicit call `CTransaction(...)` was added. Shouldn't affect behaviour or performance.
109699dd33 Add release notes (Pieter Wuille)
b65326b562 Add matching descriptors to scantxoutset output + tests (Pieter Wuille)
16203d5df7 Add descriptors to listunspent and getaddressinfo + tests (Pieter Wuille)
9b2a25b13f Add tests for InferDescriptor and Descriptor::IsSolvable (Pieter Wuille)
225bf3e3b0 Add Descriptor::IsSolvable() to distinguish addr/raw from others (Pieter Wuille)
4d78bd93b5 Add support for inferring descriptors from scripts (Pieter Wuille)
Pull request description:
This PR adds functionality to convert a script to a descriptor, given a `SigningProvider` with the relevant information about public keys and redeemscripts/witnessscripts.
The feature is exposed in `listunspent`, `getaddressinfo`, and `scantxoutset` whenever these calls are applied to solvable outputs/addresses.
This is not very useful on its own, though when we add RPCs to import descriptors, or sign PSBTs using descriptors, these strings become a compact and standalone way of conveying everything necessary to sign an output (excluding private keys).
Unit tests and rudimentary RPC tests are included (more relevant tests can be added once RPCs support descriptors).
Fixes#14503.
Tree-SHA512: cb36b84a3e0200375b7e06a98c7e750cfaf95cf5de132cad59f7ec3cbd201f739427de0dc108f515be7aca203652089fbf5f24ed283d4553bddf23a3224ab31f
b81a186056 GetPubKey: make sigdata const (Gregory Sanders)
f7beb95a1f remove redundant KeyOriginInfo access, already done in CreateSig (Gregory Sanders)
Pull request description:
This redundancy is confusing as it looks like pubkeyhashes are special in some way based on where it's called.
Tree-SHA512: a980b7c774c6d69322945227a2b156489fb1991ebf57fe6f26096d5f8047f246a133debc241b05af67810f604b040079add3ab3d30d9e2928095905a2afe17eb
9cc0230cfc Add NODISCARD to all {Decode,Parse}[...](...) functions returning bool. Sort includes. (practicalswift)
579497e77a tests: Explicitly ignore the return value of DecodeBase58(...) (practicalswift)
145fe95ec7 tests: Check return value of ParseParameters(...) (practicalswift)
7c5bc2a523 miner: Default to DEFAULT_BLOCK_MIN_TX_FEE if unable to parse -blockmintxfee (practicalswift)
Pull request description:
Changes in this PR:
* ~~Add linter to make sure the return value of `Parse[...](...)` is checked~~
* Add `__attribute__((warn_unused_result))` to all `{Decode,Parse}[...](...)` functions returning `bool`
* Fix violations
Context:
* #13712: `wallet: Fix non-determinism in ParseHDKeypath(...). Avoid using an uninitialized variable in path calculation.` would have been prevented by this
Tree-SHA512: 41a97899f2d5a26584235fa02b1ebfb4faacd81ea97e927022955a658fa7e15d07a1443b4b7635151a43259a1adf8f2f4de3c1c75d7b5f09f0d5496463a1dae6
4e4de10f69 Throw error if CPubKey is invalid during PSBT keypath serialization (Gregory Sanders)
Pull request description:
Related to https://github.com/bitcoin/bitcoin/pull/14689
We should catch this error before attempting to deserialize it later.
Tree-SHA512: d2f3ea7f363818ac70c81ee988231b2bb50d055b6919f7bff3f27120c85a7048bfa183efae33e23e6b81d684bcb8bb81e5b209abb3acbcaff1d88014f4f1aa93
6b8d86ddb8 Require a public key to be retrieved when signing a P2PKH input (Andrew Chow)
Pull request description:
If we do not have the public key for a P2PKH input, we should not continue to attempt to sign for it.
This fixes a problem where a PSBT with a P2PKH output would include invalid BIP 32 derivation paths that are missing the public key.
Tree-SHA512: 850d5e74c06833da937d5bf0348bd134180be7167b6f9b9cecbf09f75e3543fbad60d0abbc0b9afdfa51ce165aa36168849f24a7c5abf1e75f37ce8f9a13d127
e13fea975d Add regression test for PSBT signing bug #14473 (Glenn Willen)
565500508a Refactor PSBTInput signing to enforce invariant (Glenn Willen)
0f5bda2bd9 Simplify arguments to SignPSBTInput (Glenn Willen)
53e6fffb8f Add bool PSBTInputSigned (Glenn Willen)
65166d4cf8 New PartiallySignedTransaction constructor from CTransction (Glenn Willen)
4f3f5cb4b1 Remove redundant txConst parameter to FillPSBT (Glenn Willen)
fe5d22bc67 More concise conversion of CDataStream to string (Glenn Willen)
Pull request description:
As discussed in the comments on #14473, I think that bug was caused primarily by failure to adhere to the invariant that a PSBTInput always has exactly one of the two utxo fields present -- an invariant that is already enforced by PSBTInput::IsSane, but which we were temporarily suspending during signing.
This refactor repairs the invariant, also fixing the bug. It also simplifies some other code, and removes redundant parameters from some related functions.
fixes#14473
Tree-SHA512: cbad3428175e30f9b7bac3f600668dd1a8f9acde16b915d27a940a2fa6d5149d4fbe236d5808fd590fb20a032274c99e8cac34bef17f79a53fdf69a5948c0fd0
535203075e Avoid using numeric_limits for sequence numbers and lock times (Russell Yanofsky)
bafb921507 Remove duplicated code (Hennadii Stepanov)
e4dc39b3bc Replace platform dependent type with proper const (Hennadii Stepanov)
Pull request description:
Switches to named constants, because numeric_limits calls can be harder to read and less portable.
Change was suggested by jamesob in https://github.com/bitcoin/bitcoin/pull/10973#discussion_r213473620
There are no changes in behavior except on some platforms we don't support (ILP64, IP16L32, I16LP32), where `SignalsOptInRBF` and `MutateTxAddInput` functions would now work correctly.
Tree-SHA512: 3f5c6393c260551f65a0edfba55ef7eb3625232eec8d85b1457f26e144aa0b90c7ef5f44b2fd2f7d9be3c3bcb301030a9f5473c21b3bac566cc59b8c8780737c
Refactor the process of PSBTInput signing to enforce the invariant that
a PSBTInput always has _either_ a witness_utxo or a non_witness_utxo,
never both.
This simplifies the logic of SignPSBTInput slightly, since it no longer
has to deal with the "both" case. When calling it, we now give it, in
order of preference: (1) whichever of the utxo fields was already
present in the PSBT we received, or (2) if neither, the
non_witness_utxo field, which is just a copy of the input transaction,
which we get from the wallet.
SignPSBTInput no longer has to remove one of the two fields; instead, it
will check if we have a witness signature, and if so, it will replace
the non_witness_utxo with the witness_utxo (which is smaller, as it is
just a copy of the output being spent.)
Add PSBTInput::IsSane checks in two more places, which checks for
both utxo fields being present; we will now give an RPC error early on
if we are supplied such a malformed PSBT to fill in.
Also add a check to FillPSBT, to avoid touching any input that is
already signed. (This is now redundant, since we should no longer
potentially harm an already-signed input, but it's harmless.)
fixes#14473
Remove redundant arguments to SignPSBTInput -- since it needs several
bits of the PartiallySignedTransaction, pass in a reference instead of
doing it piecemeal. This saves us having to pass in both a PSBTInput and
its index, as well as having to pass in the CTransaction. Also avoid
redundantly passing the sighash_type, which is contained in the
PSBTInput already.
Switches to named constants, because numeric_limits calls can be harder to read
and less portable.
Change was suggested by James O'Beirne <james.obeirne@gmail.com> in
https://github.com/bitcoin/bitcoin/pull/10973#discussion_r213473620
There are no changes in behavior except on some platforms we don't support
(ILP64, IP16L32, I16LP32), where SignalsOptInRBF() and MutateTxAddInput()
functions would now work correctly.
4fb3388db9 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
862d159d63 Add test for conversion from non-witness to witness UTXO (Pieter Wuille)
f8c1714634 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
893628be01 Drop minor GetSerializeSize template (Ben Woosley)
da74db0940 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
917353c8b0 Make SignPSBTInput operate on a private SignatureData object (Pieter Wuille)
cad5dd2368 Pass HD path data through SignatureData (Pieter Wuille)
03a99586a3 Implement key origin lookup in CWallet (Pieter Wuille)
3b01efa0d1 [MOVEONLY] Move ParseHDKeypath to utilstrencodings (Pieter Wuille)
81e1dd5ce1 Generalize PublicOnlySigningProvider into HidingSigningProvider (Pieter Wuille)
84f1f1bfdf Make SigningProvider expose key origin information (Pieter Wuille)
611ab307fb 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
984d72ec65 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
5df6f089b5 More tests of signer checks (Andrew Chow)
7c8bffdc24 Test that a non-witness script as witness utxo is not signed (Andrew Chow)
8254e9950f Additional sanity checks in SignPSBTInput (Pieter Wuille)
c05712cb59 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
Strip out the witnesses when serializing the non-witness utxo. However
witness serializations are allowed, so make sure we always deserialize
as witness.
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.
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
e306be7429 Use 72 byte dummy signatures when watching only inputs may be used (Andrew Chow)
48b1473c89 Use 71 byte signature for DUMMY_SIGNATURE_CREATOR (Andrew Chow)
18dfea0dd0 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
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.
3fc20632a3 qt: Set BLOCK_CHAIN_SIZE = 220 (DrahtBot)
2b6a2f4a28 Regenerate manpages (DrahtBot)
eb7daf4d60 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
f6b7fc349c Support h instead of ' in hardened descriptor paths (Pieter Wuille)
fddea672eb Add experimental warning to scantxoutset (Jonas Schnelli)
6495849bfd [QA] Extend tests to more combinations (Pieter Wuille)
1af237faef [QA] Add xpub range tests in scantxoutset tests (Jonas Schnelli)
151600bb49 Swap in descriptors support into scantxoutset (Pieter Wuille)
0652c3284f Descriptor tests (Pieter Wuille)
fe8a7dcd78 Output descriptors module (Pieter Wuille)
e54d76044b Add simple FlatSigningProvider (Pieter Wuille)
29943a904a 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
fad231ad41 Fix merging of global unknown data in PSBTs (Andrew Chow)
41df035ee1 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
84547fa6d4 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
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.
5617840392 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
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.
020628e3a4 Tests for PSBT (Andrew Chow)
a4b06fb42e Create wallet RPCs for PSBT (Andrew Chow)
c27fe419ef Create utility RPCs for PSBT (Andrew Chow)
8b5ef27937 SignPSBTInput wrapper function (Andrew Chow)
58a8e28918 Refactor transaction creation and transaction funding logic (Andrew Chow)
e9d86a43ad Methods for interacting with PSBT structs (Andrew Chow)
12bcc64f27 Add pubkeys and whether input was witness to SignatureData (Andrew Chow)
41c607f09b 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
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.
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.
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.
b81560029 Remove CombineSignatures and replace tests (Andrew Chow)
ed94c8b55 Replace CombineSignatures with ProduceSignature (Andrew Chow)
0422beb9b Make SignatureData able to store signatures and scripts (Andrew Chow)
b6edb4f5e Inline Sign1 and SignN (Andrew Chow)
Pull request description:
Currently CombineSignatures is used to create the final scriptSig or an input. However ProduceSignature is capable of doing this itself. Using both CombineSignatures and ProduceSignature results in code duplication which is unnecessary.
To move the scriptSig construction to ProduceSignatures, the SignatureData class contains two maps to hold pubkeys mapped to signatures, and script ids mapped to scripts. DataFromTransaction is extended to be able to extract signatures, their public keys, and scripts from existing ScriptSigs.
The SignaureData are then passed down to SignStep which can use the aforementioned maps to get the signatures, pubkeys, and scripts that it needs, falling back to the actual SigningProvider and SignatureCreator if the data are not available in the SignatureData.
Additionally, Sign1 and SignN have been removed and their functionality inlined into SignStep since Sign1 is really just a wrapper around CreateSig.
Since ProduceSignature can produce the final scriptSig or scriptWitness by using SignatureData which has extracted data from the transaction, CombineSignatures is unnecessary as ProduceSignature is able to replicate all of CombineSignatures' functionality.
This also furthers BIP 174 support and begins moving towards a BIP 174 style backend.
The tests have also been updated to use the new combining methodology.
Tree-SHA512: 78cd58a4ebe37f79229bd5eee2958a0bb45cd7f36d0e993eee13ff685b3665dd76ef2dfd5f47d34678995bb587f5594100ee5f6c09b1c69ee96d3684d470d01e
Instead of using CombineSignatures to create the final scriptSig or
scriptWitness of an input, use ProduceSignature itself.
To allow for ProduceSignature to place signatures, pubkeys, and scripts
that it does not know about, we pass down the SignatureData to SignStep
which pulls out the information that it needs from the SignatureData.
In addition to having the scriptSig and scriptWitness, have SignatureData
also be able to store just the signatures (pubkeys mapped to sigs) and
scripts (script ids mapped to scripts).
Also have DataFromTransaction be able to extract signatures and scripts
from the scriptSig and scriptWitness of an input to put them in SignatureData.
Adds a new SignatureChecker which takes a SignatureData and puts pubkeys
and signatures into it when it successfully verifies a signature.
Adds a new field in SignatureData which stores whether the SignatureData
was complete. This allows us to also update the scriptSig and
scriptWitness to the final one when updating a SignatureData with another
one.
6aa33feadb Drop UpdateTransaction in favor of UpdateInput (Ben Woosley)
Pull request description:
Updating the input explicitly requires the caller to present a mutable
input, which more clearly communicates the effects and intent of the call
(and, often, the enclosing loop).
In most cases, this input is already immediately available and need not be
looked up.
Tree-SHA512: 8c7914a8b7ae975d8ad0e9d760e3c5da65776a5f79d060b8ffb6b3ff7a32235f71ad705f2185b368d9263742d7796bb562395d22b806d90e8502d8c496011e57
fa36aa7965 wallet: Prevent segfault when sending to unspendable witness (MarcoFalke)
Pull request description:
Previously we wouldn't care about the `txnouttype`, but after 4e91820531 we `switch` on the type.
Tree-SHA512: 6b597aba80cb43881671ad7b3a4ad97753864e8005a05c23fdd8ee79953483c08f241b5c392a9b494298eadc5cfba895b0480d916ef4f11d122fd6196f31b84a
6b8b63af14 Generic TransactionSignatureCreator works with both CTransaction and CMutableTransaction (Martin Ankerl)
Pull request description:
Refactored `TransactionSignatureCreator` into a templated `GenericTransactionSignatureCreator` that works with both `CMutableTransaction` and `CTransaction`.
The advantage is that now in `SignSignature`, the `MutableTransactionSignatureCreator` can now operate directly with the `CMutableTransaction` without the need to copy the data into a `CTransaction`.
Running all unit tests brings a very noticable speedup on my machine:
48.4 sec before this change
36.4 sec with this change
--------
12.0 seconds saved
running only `--run_test=transaction_tests/test_big_witness_transaction`:
16.7 sec before this change
5.9 sec with this change
--------
10.8 seconds saved
This relates to my first attempt with the const_cast hack #13202, and to the slow unit test issue #10026.
Also see #13050 which modifies the tests but not the production code (like this PR) to get a speedup.
Tree-SHA512: 2cff0e9699f484f26120a40e431a24c8bc8f9e780fd89cb0ecf20c5be3eab6c43f9c359cde244abd9f3620d06c7c354e3b9dd3da41fa2ca1ac1e09386fea25fb
c814e2e7e8 Remove template matching and pseudo opcodes (Pieter Wuille)
Pull request description:
The current code contains a rather complex script template matching engine, which is only used for 3 particular script types (P2PK, P2PKH, multisig). The first two of these are trivial to match for otherwise, and a specialized matcher for multisig is both more compact and more efficient than a generic one.
The goal is being more flexible, so that for example larger standard multisigs inside SegWit outputs are easier to implement.
As a side-effect, it also gets rid of the pseudo opcodes hack.
Tree-SHA512: 643b409c5c36821519f613a43efd399af0ec99b6131f35cd4024decfb2d483d719e0e921cd088bc9832a7ac797cb4a6b1158b8574c82f7fbebb75f1b31b359df
Templated version so that no copying of CMutableTransaction into a CTransaction is
necessary. This speeds up the test case transaction_tests/test_big_witness_transaction
from 7.9 seconds to 3.1 seconds on my machine.
