An alternative full node implementation of LBRY's blockchain written in Go (golang)
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David Hill 2cc85ef428 Reduce fingerprinting.
This change reduces fingerprinting via timestamps in addr messages.
Previously, the last seen time for an address was updated when
certain protocol commands were received.  Now, the last seen time
is set when the peer disconnects if the peer had sent a verack
message and was connected for more than 20 minutes.

This mimics Bitcoin Core commit:
9c2737901b5203f267d21d728019d64b46f1d9f3

Also, add additional sanity checking before updating the peer's
timestamp.  These include:

 - Do not mark a peer as connected if we never received
   a version message.
 - Disconnect a peer for sending a verack before btcd
   sent a version
 - Disconnect a peer for sending multiple verack's
2015-04-14 12:38:41 -04:00
addrmgr Reduce fingerprinting. 2015-04-14 12:38:41 -04:00
blockchain wire: Add new DoubleSha256SH function. 2015-04-06 11:37:43 -05:00
btcec Makes signing deterministic according to RFC6979 and BIP62. Closes #358. 2015-04-02 09:57:52 +02:00
btcjson btcjson: Add a few examples of using the package. 2015-04-03 22:53:03 -05:00
chaincfg Add checkpoint at block height 343185. 2015-02-27 12:34:42 -06:00
cmd btcctl: Support - argument to read from stdin. 2015-03-13 11:15:26 -05:00
database database: Correct test logging found by go vet. 2015-04-09 00:23:40 -05:00
docs Create limited RPC user. 2015-04-13 14:14:52 -04:00
limits Address a few things found by golint. 2015-01-28 09:52:53 -06:00
release Update release script to correct btcctl location. 2015-02-28 03:39:20 -06:00
txscript txscript: sync Bitcoin Core tests. 2015-04-09 12:24:12 -04:00
wire wire: Add new DoubleSha256SH function. 2015-04-06 11:37:43 -05:00
.gitignore Convert .gitignore line endings to unix. 2013-08-07 15:00:20 -05:00
.travis.yml Update Travis to test against golang 1.4.2 2015-02-27 13:28:06 -05:00
blocklogger.go Add support for an optional address-based transaction index. 2015-02-05 14:48:19 -08:00
blockmanager.go Fix race in FetchTransactionStore 2015-04-13 16:34:18 -04:00
btcd.go Add support for an optional address-based transaction index. 2015-02-05 14:48:19 -08:00
chainindexer.go Update golang.org/x/crypto import paths to new location. 2015-03-03 21:10:38 -06:00
CHANGES Prepare for release 0.10.0-beta. 2015-03-01 20:18:11 -06:00
config.go Create limited RPC user. 2015-04-13 14:14:52 -04:00
cpuminer.go Update btcwire path import paths to new location. 2015-02-05 15:16:39 -06:00
deps.txt Add 0.10.0 deps to deps.txt. 2015-02-28 03:08:44 -06:00
discovery.go Add comments to Tor discovery errors. 2015-01-16 10:11:52 -06:00
doc.go Create limited RPC user. 2015-04-13 14:14:52 -04:00
goclean.sh Prepare lint exceptions for upcoming btcjson merge. 2015-02-19 11:22:02 -06:00
LICENSE Updated license date 2014-12-29 20:46:11 +00:00
log.go Add support for an optional address-based transaction index. 2015-02-05 14:48:19 -08:00
mempool.go Fix #303 and #346 and change addrindex sort order 2015-03-23 13:05:54 -04:00
mempoolerror.go Update btcwire path import paths to new location. 2015-02-05 15:16:39 -06:00
mining.go Fix race in FetchTransactionStore 2015-04-13 16:34:18 -04:00
mruinvmap.go Update btcwire path import paths to new location. 2015-02-05 15:16:39 -06:00
mruinvmap_test.go Update btcwire path import paths to new location. 2015-02-05 15:16:39 -06:00
params.go Update btcnet path import paths to new location. 2015-02-05 23:24:53 -06:00
peer.go Reduce fingerprinting. 2015-04-14 12:38:41 -04:00
README.md Improve README readability 2015-02-08 21:40:41 +01:00
rpcserver.go Create limited RPC user. 2015-04-13 14:14:52 -04:00
rpcserverhelp.go Add id and timeoffset to getpeerinfo. 2015-03-09 23:27:53 -04:00
rpcserverhelp_test.go rpcserver: Convert to make use of new btcjson. 2015-02-24 23:46:51 -06:00
rpcwebsocket.go Create limited RPC user. 2015-04-13 14:14:52 -04:00
sample-btcd.conf Create limited RPC user. 2015-04-13 14:14:52 -04:00
server.go addrmgr: Always use a 50% chance between tried and new entries. 2015-04-14 12:28:45 -04:00
service_windows.go Update winsvc import paths to new location. 2015-01-15 16:46:18 -06:00
signal.go Prevent hang on shutdown race. 2014-07-22 08:21:58 -05:00
upgrade.go Fix some typos throughout repo. 2014-09-08 14:54:52 -05:00
upnp.go Fixed DeletePortMapping documentation typo 2015-01-01 21:59:57 +01:00
version.go Prepare for release 0.10.0-beta. 2015-03-01 20:18:11 -06:00

btcd

[Build Status] (https://travis-ci.org/btcsuite/btcd)

btcd is an alternative full node bitcoin implementation written in Go (golang).

This project is currently under active development and is in a Beta state. It is extremely stable and has been in production use for over 6 months as of May 2014, however there are still a couple of major features we want to add before we come out of beta.

It properly downloads, validates, and serves the block chain using the exact rules (including bugs) for block acceptance as Bitcoin Core. We have taken great care to avoid btcd causing a fork to the block chain. It passes all of the 'official' block acceptance tests (https://github.com/TheBlueMatt/test-scripts) as well as all of the JSON test data in the Bitcoin Core code.

It also relays newly mined blocks, maintains a transaction pool, and relays individual transactions that have not yet made it into a block. It ensures all transactions admitted to the pool follow the rules required by the block chain and also includes the same checks which filter transactions based on miner requirements ("standard" transactions) as Bitcoin Core.

One key difference between btcd and Bitcoin Core is that btcd does NOT include wallet functionality and this was a very intentional design decision. See the blog entry here for more details. This means you can't actually make or receive payments directly with btcd. That functionality is provided by the btcwallet and btcgui projects which are both under active development.

Requirements

Go 1.3 or newer.

Installation

Windows - MSI Available

https://github.com/btcsuite/btcd/releases

Linux/BSD/MacOSX/POSIX - Build from Source

  • Install Go according to the installation instructions here: http://golang.org/doc/install

  • Run the following command to obtain btcd, all dependencies, and install it:

$ go get github.com/btcsuite/btcd/...
  • btcd (and utilities) will now be installed in either $GOROOT/bin or $GOPATH/bin depending on your configuration. If you did not already add the bin directory to your system path during Go installation, we recommend you do so now.

Updating

Windows

Install a newer MSI

Linux/BSD/MacOSX/POSIX - Build from Source

  • Run the following command to update btcd, all dependencies, and install it:
$ go get -u -v github.com/btcsuite/btcd/...

Getting Started

btcd has several configuration options avilable to tweak how it runs, but all of the basic operations described in the intro section work with zero configuration.

Windows (Installed from MSI)

Launch btcd from your Start menu.

Linux/BSD/POSIX/Source

$ ./btcd

IRC server

  • irc.conformal.com:6697
  • ssl required
  • channel #btcd

Mailing lists

  • btcd: discussion of btcd and its packages.
  • btcd-commits: readonly mail-out of source code changes.

To subscribe to a given list, send email to list+subscribe@opensource.conformal.com

Issue Tracker

The integrated github issue tracker is used for this project.

Documentation

The documentation is a work-in-progress. It is located in the docs folder.

GPG Verification Key

All official release tags are signed by Conformal so users can ensure the code has not been tampered with and is coming from Conformal. To verify the signature perform the following:

  • Download the public key from the Conformal website at https://opensource.conformal.com/GIT-GPG-KEY-conformal.txt

  • Import the public key into your GPG keyring:

    gpg --import GIT-GPG-KEY-conformal.txt
    
  • Verify the release tag with the following command where TAG_NAME is a placeholder for the specific tag:

    git tag -v TAG_NAME
    

License

btcd is licensed under the copyfree ISC License.