Commit graph

12109 commits

Author SHA1 Message Date
Wladimir J. van der Laan
6516b36731
Merge #12676: Show "bip125-replaceable" flag, when retrieving mempool entries
870bd4c73d Update functional RBF test to check replaceable flag (dexX7)
820d31f95f Add "bip125-replaceable" flag to mempool RPCs (dexX7)

Pull request description:

  This pull request adds a flag "bip125-replaceable" to the mempool RPCs getrawmempool, getmempoolentry, getmempoolancestors and getmempooldescendants, which indicates whether an unconfirmed transaction might be replaced.

  Initially the flag was added to the raw transaction RPCs, but thanks to @conscott, it was moved to the mempool RPCs, which actually have access to the mempool.

  ~~This pull request adds a flag "bip125-replaceable" to the RPCs "getrawtransaction" and "decoderawtransaction", which indicates, whether a transaction signals BIP 125 replaceability.~~

  There was some discussion in #7817, whether showing replaceability in the UI could lead to the false assumption that transactions that don't signal BIP 125 are truely non-replaceable, but given that this PR tackles the raw transaction interface, which is a rather low level tool, I believe having this extra piece of information isn't bad.

Tree-SHA512: 1f5511957af2c20a9a6c79d80a335c3be37a2402dbf829c40cceaa01a24868eab81a9c1cdb0b3d77198fa3bb82799e3540a5c0ce7f35bbac80d73f7133ff7cbc
2018-08-26 00:04:05 +02:00
Wladimir J. van der Laan
6f5372a171
Merge #13961: util: Replace boost::signals2 with std::function
ddddce0e46 util: Replace boost::signals2 with std::function (MarcoFalke)

Pull request description:

  This removes the `#include <boost/signals2/signal.hpp>` from `util.h` (hopefully speeding up the build time and reducing the memory usage further after  #13634)

  The whole translation interface is replaced by a function `G_TRANSLATION_FUN` that is set to nullptr in units that don't need translation. (Thus only set in the gui)

Tree-SHA512: 087c717358bbed8bdb409463e225239d667f1ced381abb10e7cd31a41dcdd2cebe20b43c2ee86f0f8e55d53301f75e963f07421a99a7ff4c0cad2c6a375c5ab1
2018-08-25 21:13:46 +02:00
Wladimir J. van der Laan
021dce935a
Merge #13946: p2p: Clarify control flow in ProcessMessage
fa6c3dea42 p2p: Clarify control flow in ProcessMessage() (MarcoFalke)

Pull request description:

  `ProcessMessage` is effectively a massive switch case construct. In the past there were attempts to clarify the control flow in `ProcessMessage()` by moving each case into a separate static function (see #9608). It was closed because it wasn't clear if moving each case into a function was the right approach.
  Though, we can quasi treat each case as a function by adding a return statement to each case. (Can be seen as a continuation of bugfix #13162)

  This patch does exactly that.

  Also note that this patch is a subset of previous approaches such as #9608 and #10145.

  Review suggestion: `git diff HEAD~ --function-context`

Tree-SHA512: 91f6106840de2f29bb4f10d27bae0616b03a91126e6c6013479e1dd79bee53f22a78902b631fe85517dd5dc0fa7239939b4fefc231851a13c819458559f6c201
2018-08-25 18:18:15 +02:00
Wladimir J. van der Laan
4cef8e0593
Merge #13429: Return the script type from Solver
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
2018-08-25 17:41:00 +02:00
Wladimir J. van der Laan
776fa60c4b
Merge #13631: Add CMerkleTx::IsImmatureCoinBase method
23f4343781 Add CMerkleTx::IsImmatureCoinBase method (Ben Woosley)

Pull request description:

  All but one call to `GetBlocksToMaturity` is testing it relative to 0
  for the purposes of determining whether the coinbase tx is immature.
  In such case, the value greater than 0 implies that the tx is coinbase,
  so there is no need to separately test that status.

  This names the concept for easy singular use.

Tree-SHA512: 4470d07404a0707144f9827b9a94c5c4905f23ee6f9248edc5df599a59d28e21ea0201d8abe5d5d73b39cb05b60c861ea8e04767eef04433e2ee95dcfed653ee
2018-08-25 16:53:21 +02:00
MarcoFalke
ddddce0e46
util: Replace boost::signals2 with std::function 2018-08-24 08:34:38 -04:00
Wladimir J. van der Laan
540bf8aacc
Merge #12559: Avoid locking cs_main in some wallet RPC
00f58f8c48 rpc: Avoid locking cs_main in some wallet RPC (João Barbosa)

Pull request description:

  Avoid locking `cs_main` in the folllowing wallet RPC:
   - `decoderawtransaction`
   - `getnewaddress`
   - `getrawchangeaddress`
   - `setlabel`

Tree-SHA512: 54089766b2a969a17479af6c60e8ce151fac1f8cec268d43c61e679d5d17e76d17e414240c9ca2bfd280165f3a04e24a51310eb283591cd601a7eebc8b2423ea
2018-08-23 19:38:18 +02:00
João Barbosa
00f58f8c48 rpc: Avoid locking cs_main in some wallet RPC 2018-08-23 01:46:59 +01:00
MarcoFalke
fa5099ceb7
p2p: Remove dead code for nVersion=10300 2018-08-22 09:22:04 -04:00
Wladimir J. van der Laan
17d644901b
Merge #13988: Add checks for settxfee reasonableness
317f2cb3f4 test: Check RPC settxfee errors (João Barbosa)
48618daf26 Add checks for settxfee reasonableness (Anthony Towns)

Pull request description:

  When using the `settxfee` RPC, the value is silently ignored if it is less than either than minrelaytxfee or the wallet's mintxfee. This adds an error response if that's going to happen, but still allows "settxfee 0" to deliberately default to the minimum value.

Tree-SHA512: ce685584cf8d6b9ca2cc97196d494220e3892b6a804a458086e04b3a23df281da432ad0a3053106a064c90c541ddb6f6b96a27cf8376d45af1e44449baf88456
2018-08-22 11:10:41 +02:00
Wladimir J. van der Laan
0738b88fe0
Merge #13967: [walletdb] don't report minversion wallet entry as unknown
321159e53e don't report minversion wallet entry as unknown (Gregory Sanders)

Pull request description:

  It is known in WalletBatch::LoadWallet

Tree-SHA512: 82f7e12f48ae7d17317074ce5b5e27c70ba8334b04adbf7cc863f8169cc1aa460b9454571e2698aa00059c8c8f669fe19c0d40c4910dcded260ddca6ce78be9d
2018-08-22 10:02:11 +02:00
Wladimir J. van der Laan
df29abf673
Merge #14006: Add const modifier to HTTPRequest methods
18c49eb887 http: Add const modifier to HTTPRequest methods (João Barbosa)

Pull request description:

Tree-SHA512: 233617425ff3abc7419817a95337056c190640197c6c4d8b1a0810967d960c0968d02967e16ffbc1af1a2b3117fdc98722bf05e270504d59548e6838fa7f5ffb
2018-08-21 17:33:12 +02:00
João Barbosa
f78558f1e3 qt: Use new Qt5 connect syntax 2018-08-21 09:43:54 +01:00
Wladimir J. van der Laan
8aa9badf5e
Merge #13968: [wallet] couple of walletcreatefundedpsbt fixes
faaac5caaa RPCTypeCheck bip32derivs arg in walletcreatefunded (Gregory Sanders)
1f0c4282e9 QA: add basic walletcreatefunded optional arg test (Gregory Sanders)
1f18d7b591 walletcreatefundedpsbt: remove duplicate replaceable arg (Gregory Sanders)
2252ec5008 Allow ConstructTransaction to not throw error with 0-input txn (Gregory Sanders)

Pull request description:

  1) Previously an empty input argument transaction that is marked for replaceability fails to pass the `SignalsOptInRBF` check right before funding it. Explicitly check for that condition before throwing an error.

  2) The rpc call had two separate `replaceable` arguments, each of which being used in mutually exclusive places. I preserved the `options` version to retain compatability with `fundtransaction`.

Tree-SHA512: 26eb0c9e2d38ea51d11f741d61100223253271a084adadeb7e78c6d4e9004636f089e4273c5bf64a41bd7e9ff795317acf30531cb36aeb0d8db9304b3c8270c3
2018-08-21 09:44:26 +02:00
MarcoFalke
4732fa133a
Merge #12818: [qt] TransactionView: highlight replacement tx after fee bump
d795c610d3 [qt] TransactionView: highlight replacement tx after fee bump (Sjors Provoost)

Pull request description:

  Consistent with #12421 which highlights the transaction after send.

  <img width="747" alt="1" src="https://user-images.githubusercontent.com/10217/38036280-a7358ea4-32a6-11e8-8f92-417e9e1e3e8b.png">

  <img width="685" alt="2" src="https://user-images.githubusercontent.com/10217/38036289-aac87040-32a6-11e8-9f94-81745ff6c592.png">

  ~I'm not too proud of the `QTimer::singleShot(10` bit; any suggestions on how to properly wait for the transactions table to become aware of the new transaction?~

  Although I could have called `focusTransaction()` directly from `TransactionView::bumpFee()` I'm using the same signal as the send screen. This should make it easier to move fee bump / transaction replacement functionality around later.

Tree-SHA512: 242055b7c3d32c7b2cf871f5ceda2581221902fd53fa29e0b092713fc16d3191adbe8cbb28417d522dda9febec8cc05e07afe3489cd7caaecd33460c1dde6fbc
2018-08-20 13:26:30 -04:00
Gregory Sanders
faaac5caaa RPCTypeCheck bip32derivs arg in walletcreatefunded 2018-08-20 13:02:20 -04:00
Gregory Sanders
1f18d7b591 walletcreatefundedpsbt: remove duplicate replaceable arg 2018-08-20 13:02:20 -04:00
Wladimir J. van der Laan
2a583406c0
Merge #13248: [gui] Make proxy icon from statusbar clickable
6d5fcad576 [gui] Make proxy icon from statusbar clickable (Cristian Mircea Messel)

Pull request description:

  Clicking on the proxy icon will open settings showing the network tab

  https://github.com/bitcoin/bitcoin/pull/11491#issuecomment-336685303

Tree-SHA512: c3549749296918818694a371326d1a3b1075478918aaee940b5c7119a7e2cb991dcfda78f20d44d6d001157b9b82951f0d5157b17f4f0d1a0a242795efade036
2018-08-20 13:40:11 +02:00
João Barbosa
18c49eb887 http: Add const modifier to HTTPRequest methods 2018-08-20 01:35:55 +01:00
Wladimir J. van der Laan
3c8d1ae153
Merge #13665: [build] Add risc-v support to gitian
c4aecd1d80 Add risc-v 64-bit to gitian (Chun Kuan Lee)
96dda8b058 [depends] Add riscv qt depends support for cross compiling bitcoin-qt (Chun Kuan Lee)

Pull request description:

  Based on ~#13660~ #13710 ,  add gitian tarball for RISC-V

Tree-SHA512: 8db73545a2ea7fe03fa156598479335ea3c79aa3fb9c5cc44b8563094b1deb7c94d29c1dab47fac129dbfa2e3e774301b526474beeeb59c9b0087d3ea087dbd6
2018-08-16 20:33:50 +02:00
Anthony Towns
48618daf26 Add checks for settxfee reasonableness 2018-08-16 12:47:31 +10:00
Wladimir J. van der Laan
b5591ca0b0
Merge #13399: rpc: Add submitheader
fa091b0016 qa: Add tests for submitheader (MarcoFalke)
36b1b63f20 rpc: Expose ProcessNewBlockHeaders (MarcoFalke)

Pull request description:

  This exposes `ProcessNewBlockHeaders` as an rpc called `submitheader`. This can be used to check for invalid block headers and submission of valid block headers via the rpc.

Tree-SHA512: a61e850470f15465f88e450609116df0a98d5d9afadf36b2033d820933d8b6a4012f9f2b3246319c08a0e511bef517f5d808cd0f44ffca91d10895a938004f0b
2018-08-15 17:52:06 +02:00
Wladimir J. van der Laan
ef98e122ca
Merge #13891: [RPC] Remove getinfo deprecation warning
b2f23c4153 [RPC] Remove getinfo deprecation warning (John Newbery)

Pull request description:

  `getinfo` was removed in V0.16. A removal warning message was left in place to tell users that the method had been removed. We can remove that entirely in V0.18.

Tree-SHA512: bf93fbcf57a9be480438dcbdcab2dfd69ce277218b10628776975b093b3ffd2caa1751e0fb4cb0245443c81465693e2b8750e96d3e38632a78bae5ffa04f9212
2018-08-15 17:10:43 +02:00
fanquake
4b3b85c597
refactor: use fs:: over boost::filesystem:: 2018-08-15 21:05:21 +08:00
MarcoFalke
80127f074e
Merge #13974: [trivial] Fix typo in CDiskBlockPos struct's ToString
8bd98a3846 [trivial] Fix typo in CDiskBlockPos struct's ToString (Jon Layton)

Pull request description:

  (Logging)

Tree-SHA512: 5c0334fda15b1d668b251107772ae527e6b5f63d10e6c75330107eec0db7195845fdb9e92781591bcad6720bc8ef5af5a77cccf883170c4dfd2090b8c7ce16bd
2018-08-15 08:01:49 -04:00
MarcoFalke
e393a18b51
Merge #13964: ci: Add Appveyor CI
1f6ff04e59 Use wildcard path in test_bitcoin.vcxproj (Chun Kuan Lee)
90cc69c0c7 ci: Add appveyor.yml to build on MSVC (Chun Kuan Lee)
4d0c7924d2 Make macro compatible with MSVC (Chun Kuan Lee)

Pull request description:

  Introduce Appveyor CI for MSVC. This would require the owner adding appveyor to this repo. Also fix some MSVC incompatible code.

  This `appveyor.yml` file is modified from @sipsorcery and @NicolasDorier 's code in #12613.

  Appveyor CI result: https://ci.appveyor.com/project/ken2812221/bitcoin/build/1.0.151

Tree-SHA512: b5b0f1686a33e54325ea6de81606806a7d9a0f8d4acbb97c9ce598386e8fcb2220def264777609ed2b850ac8c490fd181303ea522c5a70487272d46995f4c52d
2018-08-15 07:55:39 -04:00
Jon Layton
8bd98a3846 [trivial] Fix typo in CDiskBlockPos struct's ToString 2018-08-14 18:03:43 -05:00
Gregory Sanders
2252ec5008 Allow ConstructTransaction to not throw error with 0-input txn 2018-08-14 14:28:29 -04:00
Wladimir J. van der Laan
63f8b0128b
Merge #13917: Additional safety checks in PSBT signer
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
2018-08-14 18:01:02 +02:00
Gregory Sanders
321159e53e don't report minversion wallet entry as unknown 2018-08-14 11:34:27 -04:00
Wladimir J. van der Laan
3e5424faf6
Merge #13960: Fix PSBT deserialization of 0-input transactions
bd19cc78cf Serialize non-witness utxo as a non-witness tx but always deserialize as witness (Andrew Chow)
43811e6338 Fix PSBT deserialization of 0-input transactions (Andrew Chow)

Pull request description:

  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.

  When a transaction is serliazed for the non-witness-utxo, it is always a valid network transaction and thus it should be always be deserialized as a witness transaction and the deserialzation flags are set as such.

  Fixes #13958

Tree-SHA512: 1937b3cb2618534478d4f533541fb9efce3cb5badb5d1964bfe19400f4aacc6c8ecedaf1f20d26b20baf94f81fd07dfb15b3b08089ecbd63aeecbc18c7c48086
2018-08-14 16:52:36 +02:00
Chun Kuan Lee
4d0c7924d2 Make macro compatible with MSVC 2018-08-14 09:19:47 +00:00
Wladimir J. van der Laan
db3cb5c5a6
Merge #13948: trivial: Removes unsed CBloomFilter constructor.
265bd50884 Removes unsed `CBloomFilter` constructor. (251)

Pull request description:

  This pull request removes the `CBloomFilter::CBloomFilter(const unsigned int, const double, const unsigned int)` constructor, which became obsolete with 086ee67.

Tree-SHA512: 46742f178e219661e82609a9bf6b644ebc58ab3efc2d1865c5562980e84f16a5fa286be9813738196ad7a27e639dee926062538eb44cadd67ab87ad5e9a266ba
2018-08-14 10:58:44 +02:00
Carl Dong
16bcc1b823 Remove unused dummy_tx variable from FillPSBT 2018-08-13 18:45:26 -07:00
Andrew Chow
bd19cc78cf Serialize non-witness utxo as a non-witness tx but always deserialize as witness
Strip out the witnesses when serializing the non-witness utxo. However
witness serializations are allowed, so make sure we always deserialize
as witness.
2018-08-13 15:00:06 -07:00
Andrew Chow
43811e6338 Fix PSBT deserialization of 0-input transactions
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.
2018-08-13 14:59:31 -07:00
MarcoFalke
ddc3ec92b0
Merge #13634: ui: Compile boost::signals2 only once
fa5ce27385 ui: Compile boost:signals2 only once (MarcoFalke)

Pull request description:

  ui is one of the modules that poison other modules with `boost/signals2` headers. This moves the include to the cpp file and uses a forward declaration in the header.

  Locally this speeds up the incremental build (building everything that uses the ui module) with gcc by ~5% for me. Gcc uses ~5% less memory.

  Would be nice if someone could verify the numbers roughly.

  I presume the improvements will be more pronounced if the other models would stop exposing the boost header as well.

Tree-SHA512: 078360eba330ddbca4268bd8552927eae242a239e18dfded25ec20be72650a68cd83af7ac160690249b943d33ae35d15df1313f1f60a0c28b9526853aa7d1e40
2018-08-13 15:02:38 -04:00
MarcoFalke
36b1b63f20 rpc: Expose ProcessNewBlockHeaders 2018-08-13 14:27:40 -04:00
Pieter Wuille
8254e9950f Additional sanity checks in SignPSBTInput 2018-08-13 08:21:16 -07:00
Pieter Wuille
c05712cb59 Only wipe wrong UTXO type data if overwritten by wallet 2018-08-13 08:21:16 -07:00
MarcoFalke
f87d0a9d75
Merge #13534: Don't assert(foo()) where foo() has side effects
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
2018-08-13 10:02:50 -04:00
MarcoFalke
3bd25c010c
Merge #13899: build: Enable -Wredundant-decls where available. Remove redundant redeclarations.
d56b73f217 Remove redundant extern (practicalswift)
f04bb1361c Enable -Wredundant-decls (gcc) if available (practicalswift)
a9e90e5002 Remove redundant redeclaration of rescanblockchain(...) in same scope (practicalswift)

Pull request description:

  Remove redundant redeclaration of `rescanblockchain` and enable `-Wredundant-decls` (gcc) where available to avoid accidental redundant redeclarations.

  ```
   CXX      wallet/libbitcoin_wallet_a-rpcwallet.o
  wallet/rpcwallet.cpp:4764:17: warning: redundant redeclaration of ‘UniValue rescanblockchain(const JSONRPCRequest&)’ in same scope [-Wredundant-decls]
   extern UniValue rescanblockchain(const JSONRPCRequest& request);
                   ^~~~~~~~~~~~~~~~
  wallet/rpcwallet.cpp:3929:10: note: previous declaration of ‘UniValue rescanblockchain(const JSONRPCRequest&)’
   UniValue rescanblockchain(const JSONRPCRequest& request)
            ^~~~~~~~~~~~~~~~
  ```

Tree-SHA512: b9af95fa53f494c3f6702e485956b66b042d2ff7578b4a53bf28e91aa844cdcf5d7ac3e2e710948eed566007324e81317304b8eabf2d4ea284cd6acd77f8ffcd
2018-08-13 09:55:35 -04:00
MarcoFalke
f083ec13c3
Merge #13938: refactoring: Cleanup StartRest()
2da54f5a66 Cleanup StartRest() (DesWurstes)

Pull request description:

Tree-SHA512: 7e907315009c0351b7a3347ec13b6727abd12fe722d51cc061cb635ea20f9a550af5f50dc364c4313501b0dfc3696bcfa26a2a5f0170a4b5808624e043085d29
2018-08-13 09:42:50 -04:00
Wladimir J. van der Laan
825fb02ef1 net: Update hardcoded seeds
Pre-0.17 branch hardcoded seeds update.
2018-08-13 13:57:15 +02:00
MarcoFalke
73a09b4458
Merge #13905: docs: fixed bitcoin-cli -help output for help2man
869193f5a6 docs: fixed bitcoin-cli -help output for help2man (Hennadii Stepanov)

Pull request description:

  Currently `bitcon-cli -help` output forces help2man to produce `.TP` and `.IP` commands instead of a single `.IP` command for `-stdinrpcpass`  option.
  Removing an extra space fixes this issue.

  This pull request is rebased from #13879

Tree-SHA512: 1c5b25ed2ef7b7de42bc6210165bdbabe63f045699487f2db4790e0d3176f6493dfd3e8e19f4ddc38b551539465d7b41aea570f20dccbc0609f00fdfee1b5180
2018-08-13 07:33:33 -04:00
MarcoFalke
a9c56b6634
Merge #13918: rpc: Replace median fee rate with feerate percentiles in getblockstats
4b7091a842 Replace median fee rate with feerate percentiles (Marcin Jachymiak)

Pull request description:

  Currently,  the `medianfeerate` statistic is calculated from the feerate of the middle transaction of a list of transactions sorted by feerate.

  This PR instead uses the value of the 50th percentile weight unit in the block, and also calculates the feerate at the 10th, 25th, 75th, and 90th percentiles.  This more accurately corresponds with what is generally meant by median feerate.

Tree-SHA512: 59255e243df90d7afbe69839408c58c9723884b8ab82c66dc24a769e89c6d539db1905374a3f025ff28272fb25a0b90e92d8101103e39a6d9c0d60423a596714
2018-08-13 07:18:25 -04:00
Wladimir J. van der Laan
2115cba9c6
Merge #13666: Always create signatures with Low R values
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
2018-08-13 12:07:20 +02:00
Wladimir J. van der Laan
13d51a2b61
Merge #13808: wallet: shuffle coins before grouping, where warranted
18f690ec2f wallet: shuffle coins before grouping, where warranted (Karl-Johan Alm)

Pull request description:

  Coins are randomly shuffled in coin selection to avoid unintentional privacy leaks regarding the user's coin set. For the case where a user has a lot of coins with the same destination, these will be grouped into groups of 10 *before* the shuffling.

  It is unclear whether this has any implications at all, but this PR plugs the potential issue, if there ever is one, by shuffling the coins before they are grouped.

  Issue brought up in https://github.com/bitcoin/bitcoin/pull/12257#discussion_r204554549

Tree-SHA512: fb50ed4b5fc03ab4853d45b76e1c64476ad5bcd797497179bc37b9262885c974ed6811159fd8e581f1461b6cc6d0a66146f4b70a2777c0f5e818d1322e0edb89
2018-08-13 11:36:39 +02:00
Hennadii Stepanov
869193f5a6 docs: fixed bitcoin-cli -help output for help2man
The `help2man` parses a string containing two spaces between words with an issue:
it gives out `.TP` and `.IP` commands instead of a single `.IP` command.
Removing an extra space fixes this issue.
Currently the `-help` output for the `-stdin` option looks without any issue due to eliminating
of two spaces between words by a `FormatParagraph` call for this particular case.
For consistency and preventing from future regressions extra spaces have been removed from the both lines.
The redundant `strprintf` call has been removed aswell.
2018-08-13 12:12:03 +03:00
Wladimir J. van der Laan
b0d3e9b102
qt: Translations update before 0.17 branch
Make sure that translations are synchronized with transifex before the
branch-off point to minimize the difference and prevent duplicate work.

Tree-SHA512: 41e71eaf14094606fd90011d035c551a635d5a715f865a49841dbe2b54a76b7fbf59a7918f86e5fd80a717e2934a9613fe463391fd01848d0a01e5c4e7e7fef0
2018-08-13 11:00:17 +02:00