Commit graph

17874 commits

Author SHA1 Message Date
Pieter Wuille
84547fa6d4 Avoid creating a temporary vector for size-prefixed elements 2018-07-19 16:16:37 -07:00
MarcoFalke
aba2e666d7
Merge #13712: wallet: Fix non-determinism in ParseHDKeypath(...). Avoid using an uninitialized variable in path calculation.
27ee53c1ae wallet: Add error handling. Check return value of ParseUInt32(...) in ParseHDKeypath(...). (practicalswift)
7223263899 wallet: Add tests for ParseHDKeypath(...) (practicalswift)

Pull request description:

  Add error handling. Check return value of `ParseUInt32(...)` in `ParseHDKeypath(...)`.

  `ParseUInt32(...)` returns `false` if the entire string could not be parsed or when an overflow or underflow occurred. In such case the uninitialized variable `number` would be used in the calculation of `path` (prior to this commit).

  An example key path triggering this is `m/0/4294967296`:

  ```
    ParseHDKeypath("m/0/4294967296", keypath);
  ```

  `4294967296` is `1` + `0xFFFFFFFF` (`uint32_t` max: `4294967295`).

  Introduced in a4b06fb42e which was merged into `master` 14 hours ago as part of #13557 ("BIP 174 PSBT Serializations and RPCs").

Tree-SHA512: e5ff423f67c18d82c1231bde6343587a453e793c32004d93dc9b61be6d9372b57a6b2c9978d9eb1000d6cc82fd180f2486013f928dca737fb92daad22c16e467
2018-07-19 17:39:59 -04:00
MarcoFalke
f281f8f755
Merge #13074: [trivial] Correct help text for importaddress RPC
2c71edc2fc [wallet] [rpc] Fix importaddress help text (John Newbery)

Pull request description:

  Help text for `importaddress` referred to the first parameter as `script`, when in fact it's `address`. Calling with a script argument fails:

  ```
  → bcli -named importaddress script=2N3qhMpHK8WNo7wv87W9eHMgvGyJU1593Ei
  error code: -8
  error message:
  Unknown named parameter script
  → bcli -named importaddress address=2N3qhMpHK8WNo7wv87W9eHMgvGyJU1593Ei
  # success!
  ```

Tree-SHA512: 24dcb2cbd0a43e25896b1c67fa0386df2453ec04d49a339e10992417b3921ce3df8a6aa5abba7d2237d6188b018948b2a21ea2f04d37120ad36c31c7b7fc9f1c
2018-07-19 17:34:12 -04:00
Mason Simon
b1b8863fd6 docs: Specify preferred Python string formatting technique 2018-07-19 12:27:42 -07:00
practicalswift
27ee53c1ae wallet: Add error handling. Check return value of ParseUInt32(...) in ParseHDKeypath(...). 2018-07-19 21:13:03 +02:00
practicalswift
7223263899 wallet: Add tests for ParseHDKeypath(...) 2018-07-19 21:13:03 +02:00
Chun Kuan Lee
14788fbada [travis] Don't store debug info if --enable-debug is set 2018-07-19 18:49:05 +00:00
MarcoFalke
8c36432791
Merge #13689: depends: disable Werror when building zmq
a4ba2388fe depends: disable Werror for zmqlib release, causes ndk build to break (Lawrence Nahum)

Pull request description:

  This PR ~~backports this libzmq commit 58d13395ec from this merged upstream PR (but unreleased as of today) https://github.com/zeromq/libzmq/pull/3140 as a patch to our zmq 4.2.3 version.~~ passes --disable-Werror when we build zmq.

  For reference see https://github.com/bitcoin/bitcoin/issues/11844#issuecomment-398406988

  ~~This patch~~ A similar patch is already in use in abcore/bitcoin_ndk and needed to build bitcoind for android using NDK or some versions of clang 6+ during cross compilation.

  This patch won't be necessary once zmqlib releases a 4.2.6+ version including the fix and bitcoin core updates to it but it may be good to [have](https://github.com/bitcoin/bitcoin/pull/13689#issuecomment-405644394)

  ~~It also reintroduces autogen.sh as it is necessary for the patch to work, otherwise you'll have aclocal issues (see https://travis-ci.org/greenaddress/bitcoin/jobs/404902106). autogen,sh was removed in master only https://github.com/bitcoin/bitcoin/pull/11986 as non-necessary but otherwise unreleased.~~

  In the likely case https://github.com/bitcoin/bitcoin/pull/13578 is merged first I rebased the patch for the newer zmq version (4.2.5) in https://github.com/greenaddress/bitcoin/tree/zmq-upgrade-mruddy-patched and i can update the PR accordingly or close and open a new one.

Tree-SHA512: ba8780c84b4ac4ead5605c0305827431a85c1c8503b7ed255a552469b22bdb4ca018449282f738794f573f93caed95c14ede7caadb3a3f14989f57cb74501f00
2018-07-19 14:19:23 -04:00
MarcoFalke
e1260a798d
Merge #13715: tests: fixes mininode's P2PConnection sending messages on closing transport
ea5340c9d2 tests: fixes mininode's P2PConnection sending messages on closing transport (marcoagner)

Pull request description:

  Fixes #13579.
  I think one possible solution is to check for [`_transport.is_closing()`](https://docs.python.org/3.4/library/asyncio-protocol.html#asyncio.BaseTransport.is_closing) in the lambda before sending a message (compatible with Python 3.4 too). Let me know if I missed any side effects this introduces.

Tree-SHA512: cab46f81dccfec7b4460fda478a617845564520694449a9e85bf8a5f1e75f35f52cafd7c64966712c3d6c29956344d5a9dbad8851424f061eb3748bc621b900b
2018-07-19 09:07:35 -04:00
marcoagner
ea5340c9d2
tests: fixes mininode's P2PConnection sending messages on closing transport
- checks if  _transport.is_closing() (added in python3.4.4/python3.5.1)
before attempting to send messages on P2PConnection's send_message
method.
2018-07-19 12:24:31 +01:00
Mitchell Cash
95464c7519
doc: Improve command to generate list of authors for release notes
- Remove dependency on sed (sed was overkill when you can just add plain
  text to the git log --format command)
- Sort resulting list of authors alphabetically (case-insensitive)
- Provide an example of how to only generate authors between versions
2018-07-19 16:03:00 +10:00
Mitchell Cash
1c22cc1af1
doc: Update broken links to now point to gitian-build.py 2018-07-19 09:33:05 +10:00
Wladimir J. van der Laan
4a3e8c5aa6
Merge #13500: [wallet] Decouple wallet version from client version
cd3f4aa808 Decouple wallet version from client version (Andrew Chow)

Pull request description:

  Instead of comparing version numbers in the wallet to the client version number, compare them to the latest supported wallet version in the client. This allows for wallet version numbers to be unrelated to the client version number.

Tree-SHA512: 69c3e1f45a40bde01d622d504a803fea32fc14e2e27b14b0729725349d8592d56ebca26fd06f117fd6f5164fb4ce980122751b6370f6e25f1a947dbdf4143ddd
2018-07-18 20:58:54 +02:00
Wladimir J. van der Laan
b654723461
Merge #13557: BIP 174 PSBT Serializations and RPCs
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
2018-07-18 20:25:44 +02:00
Wladimir J. van der Laan
585db54dd1
Merge #13655: bitcoinconsensus: invalid flags error should be set to bitcoinconsensus_err
417b6c1d29 bitcoinconsensus: invalid flags should be set to bitcoinconsensus_error type, add test cases covering bitcoinconsensus error codes (Thomas Kerin)

Pull request description:

  A check was added to the bitcoinconsensus verify_script codepath to ensure that callers only used _exposed_ interpreter flags. I think this error should be written to `bitcoinconsensus_err* err` and not returned by verify_script?

  I modified the check so it indicates the error using *err like the others, and added tests covering the error codes.

Tree-SHA512: 8ab370e56956a7d4740f83475e6078774affd663ac92383a02b85295da550f1b4f7a7a68f32ed5c5bcb39d98e2f15ec0b76de8399887e7763eb7c1e21d131093
2018-07-18 17:19:15 +02:00
Wladimir J. van der Laan
7146672687
Merge #13625: doc: Add release notes for -printtoconsole and -debuglogfile changes
801cb307b5 doc: Add release notes for -printtoconsole and -debuglogfile changes (Samuel B. Atwood)

Pull request description:

  This adds release notes relevant to the changes in #13004 and documented in command line help in #13614.

Tree-SHA512: ff320415afa9be1ace37ebf0a69ee5a7e6d4167465bc41111be062a556da9b8accfc39553fac610e68521c7ab2095126ace4f012a32f5e9f37cbec39cfa74b04
2018-07-18 16:29:51 +02:00
Wladimir J. van der Laan
9d26b690e7
Merge #13687: travis: Check that ~/.bitcoin is never created
fabe28a0cd qa: Temporarily disable test that reads the default datadir location (MarcoFalke)
41a8c8dfaf travis: Check that ~/.bitcoin is never created (MarcoFalke)

Pull request description:

Tree-SHA512: d114db29a18f684d207caa0d7c947b13c945e2dd8b6d7fdeacdf7aa194f8123579d1139331b9d308df69a1132796e805a9ab63580aebde9b719860c0ff4b5652
2018-07-18 15:26:44 +02:00
Ben Woosley
5c613aadd6
lint: Add linter for circular dependencies
Protects against added circular depencies, makes it explicit in the
code when circular dependencies have been removed.

Modeled after EXPECTED_BOOST_INCLUDES in lint-includes.sh
2018-07-18 09:11:26 -04:00
Wladimir J. van der Laan
0d8d6be791
Merge #13672: Modified in_addr6 cast in CConman class to work with msvc
822a2a33a7 Modified in_addr6 cast in CConman class to work with msvc. (Aaron Clauson)

Pull request description:

  Fix to allow net.cpp to compile with MSVC. Without this fix the `(in6_addr)IN6ADDR_ANY_INIT` implicit cast generates a compilation error.

Tree-SHA512: f21c5002401dc93564dcf8d49fbafe7c03ad4182df1616d2ee201e2e172f1d696ca7982fb5b42a3b7d6878c8649823044a858401b4172239fb4b0cc2a38db282
2018-07-18 15:03:27 +02:00
Wladimir J. van der Laan
4c6d1b9973
Merge #13699: contrib: correct version check
066d2973a6 contrib: correct version check (Karl-Johan Alm)

Pull request description:

  [ not(major >= 3 and minor >= 4) ] fails for '4.0':

  ```Python
  >>> major=4
  >>> minor=0
  >>> if not (major >= 3 and minor >= 5):
  ...     print('This example only works with Python 3.5 and greater')
  ...
  This example only works with Python 3.5 and greater
  ```

Tree-SHA512: 41cb8c5dabe0061ead37b0d6447b699c5d5e1a5551a75dd279bb2ec6d6afa51f8b27a48e01195093db7ec37b28ff6445d59646a4a2b6dcee37776afb60eac8dc
2018-07-18 14:51:12 +02:00
Wladimir J. van der Laan
f5d166acf9
Merge #13692: contrib: Clone core repo in gitian-build
fa7f8a7769 contrib: Clone core repo in gitian-build (MarcoFalke)

Pull request description:

  Cloning the core repo is mentioned in https://github.com/bitcoin/bitcoin/blob/master/doc/release-process.md#first-time--new-builders and required later on in the script.

  Also, remove a redundant `-a` option to `git commit` when commiting the signatures.

  Also, install missing commands, which are required later on in the script.

Tree-SHA512: dde422fce27492cc00d2542962c6ceb6d9f1e7dbb64acc978c424a575548b7319de0d27d4270a512774e641ec06e62a3036315819e692bcd1be2fdfd8e5c0cf2
2018-07-18 11:57:14 +02:00
Karl-Johan Alm
066d2973a6
contrib: correct version check
[ not(major >= 3 and minor >= 4) ] fails for '4.0'
2018-07-18 16:46:19 +09:00
practicalswift
3dee4cc509 Remove redundant statement 2018-07-18 09:39:31 +02:00
practicalswift
99be644966 Remove redundant unused variables 2018-07-18 09:39:31 +02:00
practicalswift
66ed242343 Remove redundant forward declaration 2018-07-18 09:39:31 +02:00
Chun Kuan Lee
f447a0a707 Remove program options from build system 2018-07-18 02:48:34 +00:00
Chun Kuan Lee
11588c639e Replace boost program_options 2018-07-18 02:48:25 +00:00
MarcoFalke
fa7f8a7769
contrib: Clone core repo in gitian-build 2018-07-17 15:44:08 -04:00
MarcoFalke
c01ab133d7
Merge #13690: [moveonly] Extract MakeUnique into utilmemory.h
33539cb34b Extract MakeUnique into utilmemory.h (Ben Woosley)

Pull request description:

  And use it to reduce chainparamsbase.cpp's and remove interfaces/handler.cpp's reliance on util.h
  This is a step toward fixing the chainparamsbase -> util circular dependency.

  Confirmed no need for the util.h include via iwyu and visual inspection.
  Extracted from #13639 for easier review.

Tree-SHA512: 61cbf9eafb68c3e3706d21c70aeb0586a85364dad32cc49c2d40e963ac3b2c44424ad1522788a0a6b2a689fd9294ebce4482a392ceb88a94eabe09a84f070ce4
2018-07-17 14:47:26 -04:00
Lawrence Nahum
a4ba2388fe
depends: disable Werror for zmqlib release, causes ndk build to break 2018-07-17 20:22:03 +02:00
MarcoFalke
9cdb19fe67
Merge #13623: Migrate gitian-build.sh to python
78f06e4af7 Migrate gitian-build.sh to python (Chun Kuan Lee)

Pull request description:

  Fixes #13620
  - Rename Mac OSX to MacOS, rename option from 'x' to 'm'
  - Fix a bug from b641f60425/contrib/gitian-build.sh (L338-L342)

Tree-SHA512: ff943055d5feca345bd17b64311374db3937d14d2f21493116fd7ab7b4cb7042480abd6a3d1d7640073b00bc0badb300e8dd32618bf73ba182df417c0633397a
2018-07-17 14:03:05 -04:00
Ben Woosley
33539cb34b
Extract MakeUnique into utilmemory.h
And use it to reduce chainparamsbase's direct reliance on util.h to
only args handling.

utilmemory.h can be replaced with <memory> once we move to C++14.
2018-07-17 13:56:21 -04:00
MarcoFalke
fabe28a0cd
qa: Temporarily disable test that reads the default datadir location 2018-07-17 13:39:06 -04:00
Wladimir J. van der Laan
6fcdb5ebdd
Merge #13638: tests: Use MAX_SCRIPT_ELEMENT_SIZE from script.py
b9f4b211df tests: Use MAX_SCRIPT_ELEMENT_SIZE from script.py (Daniel Kraft)

Pull request description:

  `p2p_segwit.py` and `test_framework/script.py` both define a constant for `MAX_SCRIPT_ELEMENT_SIZE` (=520 bytes), which is redundant.  This change uses the constant defined in the `script.py` module for `p2p_segwit.py`.

Tree-SHA512: 2bc295ff26d9b052d4e05b85c27e748175884d6689a92c19337fc4db8bf439e3abe3edc91af1aaf46d8dc42ed96a85ad17110546d2274a0d9cda3abd6b878a31
2018-07-17 17:53:20 +02:00
Wladimir J. van der Laan
30640f8c2d
Merge #13680: [doc] Remove outdated comment about miner ignoring CPFP
db6eb90094 [doc] Remove outdated comment about mining code ignoring CPFP (James O'Beirne)

Pull request description:

  BlockAssembler chooses transactions on the basis of packages (which incorporate
  unconfirmed ancestors into feerate), so the specified RBF comment about mining
  code ignoring CPFP is out of date.

Tree-SHA512: a4c1e60fee0a8f450526d565951187f869d000febce0eea8a8d2e18bb140c3c1b8602953d9dcab2d1e8d0c4fc8d392c67eb0773d67e52080d48e6b9bf13f9ee2
2018-07-17 17:20:37 +02:00
Wladimir J. van der Laan
4027ec1d70
Merge #13647: Scripts and tools: Fix BIND_NOW check in security-check.py
37d363dd4a Tools: fix BIND_NOW check in security-check.py (Conrado Gouvea)

Pull request description:

  Previously, the BIND_NOW check would work only if it was the first value in FLAGS.

Tree-SHA512: 39cd83f673a6b521803be5585ada516f2db4eede718f0c5aea3377825ed1adcefed5bbb41dd9a5f24a26f7d27116cfc81bde7e26283232593b72768c5ae3d321
2018-07-17 17:14:15 +02:00
Wladimir J. van der Laan
8fceae0d6f
Merge #12196: Add scantxoutset RPC method
be98b2d9a8 [QA] Add scantxoutset test (Jonas Schnelli)
eec7cf7b33 scantxoutset: mention that scanning by address will miss P2PK txouts (Jonas Schnelli)
94d73d32ab scantxoutset: support legacy P2PK script type (Jonas Schnelli)
892de1dfea scantxoutset: add support for scripts (Jonas Schnelli)
78304941f7 Blockchain/RPC: Add scantxoutset method to scan UTXO set (Jonas Schnelli)
9048575511 Add FindScriptPubKey() to search the UTXO set (Jonas Schnelli)

Pull request description:

  Alternative to #9152.

  This takes `<n>` pubkeys and optionally  `<n>` xpubs (together with a definable lookup windows where the default is 0-1000) and looks up common scripts in the UTXO set of all given or derived keys.

  The output will be an array similar to `listunspent`. That array is compatible with `createrawtransaction` as well as with `signrawtransaction`.

  This makes it possible to prepare sweeps and have them signed in a secure (cold) space.

Tree-SHA512: a2b22a117cf6e27febeb97e5d6fe30184926d50c0c7cbc77bb4121f490fed65560c52f8eac67a9720d7bf8f420efa42459768685c7e7cc03722859f51a5e1e3b
2018-07-17 16:03:16 +02:00
MarcoFalke
f8a32a316b
Merge #13682: bench: Remove unused variable
fa39f674ae bench: Remove unused variable (practicalswift)

Pull request description:

  Remove unused variable `vch`.

Tree-SHA512: 624d206d27453ec071d20ca52d7f9e142710ebe7529fc793beb98a61c6a74ad481f4433d14401b7761070746d99e0aa35dd67568a017b18617d6be88de6f3105
2018-07-17 08:55:46 -04:00
MarcoFalke
41a8c8dfaf travis: Check that ~/.bitcoin is never created 2018-07-17 08:10:19 -04:00
MarcoFalke
cbc9b50734
Merge #13663: tests: Avoid read/write to default datadir
fa43a4138b bench_bitcoin: Avoid read/write to default datadir (MarcoFalke)
ea80b81e2e test_bitcoin: Avoid read/write to default datadir (MarcoFalke)

Pull request description:

  tests should never read or write and potentially corrupt the default datadir, so try to avoid it.

Tree-SHA512: ee446ff4bf59da2aed38c2e4758581d6103e9d4c35a118497e9ec21d566ba33d913e160c2d7ba2ea6f937f000343ecea3816154bd87ee47f64f5b0cf9e88f6e0
2018-07-17 08:05:26 -04:00
Wladimir J. van der Laan
75bea0507f
Merge #13604: Add depends 32-bit arm support for bitcoin-qt
4b69984557 Add depends 32-bit arm support for bitcoin-qt (Sebastian Kung)

Pull request description:

  Some hobbyists are used to using the desktop for interfacing with their raspberry pi. This commits adds qt to the arm-linux-gnueabihf target.

Tree-SHA512: cb03387267eb8f68dfd79735c2c01c5a119c406e5578805e60b377934da42d46cb34d35e45c8843979dfb4070859c553d09ae348b468d9731523f33307132fa8
2018-07-17 13:11:40 +02:00
practicalswift
d06330396f wallet: Avoid potential null pointer dereference in CWalletTx::GetAvailableCredit(...) 2018-07-17 10:58:22 +02:00
practicalswift
fa39f674ae bench: Remove unused variable 2018-07-17 10:11:57 +02:00
Andrew Chow
020628e3a4 Tests for PSBT
Added functional tests for PSBT that test the RPCs. Also added all
of the BIP 174 test vectors (except for the updater tests) in the
functional tests.

Added a Unit test for the BIP 174 updater test vector.
2018-07-16 17:05:30 -07:00
Andrew Chow
a4b06fb42e Create wallet RPCs for PSBT
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.
2018-07-16 16:08:24 -07:00
Andrew Chow
c27fe419ef Create utility RPCs for PSBT
decodepsbt takes a PSBT and decodes it to JSON

combinepsbt takes multiple PSBTs for the same tx and combines them.

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.
2018-07-16 16:08:24 -07:00
James O'Beirne
db6eb90094 [doc] Remove outdated comment about mining code ignoring CPFP
BlockAssembler chooses transactions on the basis of packages (which incorporate
unconfirmed ancestors into feerate), so the specified RBF comment about mining
code ignoring CPFP is out of date.
2018-07-16 18:34:28 -04:00
MarcoFalke
0568dcd67d
Merge #13679: Initialize m_next_send_inv_to_incoming
347b4ff825 Initialize m_next_send_inv_to_incoming (Pieter Wuille)

Pull request description:

  This fixes an uninitialized variable introduced in #13298.

Tree-SHA512: 0c6fb164164141036fbbc955475650724bffdb3593c22946f55ac715fa162183bf9377a8390ee9d13f104be22bc417445e2c7fb3d4acf5e6236ac802e50f3e77
2018-07-16 17:30:43 -04:00
Pieter Wuille
347b4ff825 Initialize m_next_send_inv_to_incoming 2018-07-16 14:08:38 -07:00
Pieter Wuille
f8d470e246
Merge #13298: Net: Bucketing INV delays (1 bucket) for incoming connections to hide tx time
d45b344ffd Bucket for inbound when scheduling invs to hide tx time (Gleb)

Pull request description:

  It has been brought up to my attention that current random delays mechanism (originally intended to obfuscate transaction metadata) allows to easily estimate the time a transaction was received by a node.

  It may be done by connecting multiple observer nodes to the same node. Each of those nodes will generate its own schedule of delays. Combined metadata regarding those events from different sources allows an observer to estimate transaction time.

  After this patch a spy won't gain additional information by just creating multiple connections to a target.

Tree-SHA512: c71dae5ff350b614cb40a8e201fd0562d3e03e3e72a5099718cd451f0d84c66d5e52bbaf0d5b4b75137514c8efdedcc6ef4df90142b360153f04ad0721545ab1
2018-07-16 10:37:02 -07:00