lbcwallet/waddrmgr
Josh Rickmar 497ffc11f0 Modernize the RPC server.
This is a rather monolithic commit that moves the old RPC server to
its own package (rpc/legacyrpc), introduces a new RPC server using
gRPC (rpc/rpcserver), and provides the ability to defer wallet loading
until request at a later time by an RPC (--noinitialload).

The legacy RPC server remains the default for now while the new gRPC
server is not enabled by default.  Enabling the new server requires
setting a listen address (--experimenalrpclisten).  This experimental
flag is used to effectively feature gate the server until it is ready
to use as a default.  Both RPC servers can be run at the same time,
but require binding to different listen addresses.

In theory, with the legacy RPC server now living in its own package it
should become much easier to unit test the handlers.  This will be
useful for any future changes to the package, as compatibility with
Core's wallet is still desired.

Type safety has also been improved in the legacy RPC server.  Multiple
handler types are now used for methods that do and do not require the
RPC client as a dependency.  This can statically help prevent nil
pointer dereferences, and was very useful for catching bugs during
refactoring.

To synchronize the wallet loading process between the main package
(the default) and through the gRPC WalletLoader service (with the
--noinitialload option), as well as increasing the loose coupling of
packages, a new wallet.Loader type has been added.  All creating and
loading of existing wallets is done through a single Loader instance,
and callbacks can be attached to the instance to run after the wallet
has been opened.  This is how the legacy RPC server is associated with
a loaded wallet, even after the wallet is loaded by a gRPC method in a
completely unrelated package.

Documentation for the new RPC server has been added to the
rpc/documentation directory.  The documentation includes a
specification for the new RPC API, addresses how to make changes to
the server implementation, and provides short example clients in
several different languages.

Some of the new RPC methods are not implementated exactly as described
by the specification.  These are considered bugs with the
implementation, not the spec.  Known bugs are commented as such.
2016-01-29 11:18:26 -05:00
..
address.go Relicense to the btcsuite developers. 2015-05-01 12:20:05 -05:00
common_test.go Refactor wallet opening. 2015-05-14 14:33:33 -04:00
cov_report.sh Provide new wallet address manager package. 2014-10-13 16:19:09 -05:00
db.go Update for hdkeychain NewMaster API change. 2015-11-10 12:05:16 -06:00
doc.go Relicense to the btcsuite developers. 2015-05-01 12:20:05 -05:00
error.go Modernize the RPC server. 2016-01-29 11:18:26 -05:00
error_test.go Modernize the RPC server. 2016-01-29 11:18:26 -05:00
internal_test.go Refactor wallet opening. 2015-05-14 14:33:33 -04:00
manager.go Modernize the RPC server. 2016-01-29 11:18:26 -05:00
manager_test.go Update wallet to use ForEach- style functions 2015-05-21 23:35:13 +05:30
README.md Update btcwallet import paths to new location. 2015-01-17 00:25:53 -06:00
sync.go Relicense to the btcsuite developers. 2015-05-01 12:20:05 -05:00
test_coverage.txt Provide new wallet address manager package. 2014-10-13 16:19:09 -05:00

waddrmgr

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

Package waddrmgr provides a secure hierarchical deterministic wallet address manager.

A suite of tests is provided to ensure proper functionality. See test_coverage.txt for the gocov coverage report. Alternatively, if you are running a POSIX OS, you can run the cov_report.sh script for a real-time report. Package waddrmgr is licensed under the liberal ISC license.

Feature Overview

  • BIP0032 hierarchical deterministic keys
  • BIP0043/BIP0044 multi-account hierarchy
  • Strong focus on security:
    • Fully encrypted database including public information such as addresses as well as private information such as private keys and scripts needed to redeem pay-to-script-hash transactions
    • Hardened against memory scraping through the use of actively clearing private material from memory when locked
    • Different crypto keys used for public, private, and script data
    • Ability for different passphrases for public and private data
    • Scrypt-based key derivation
    • NaCl-based secretbox cryptography (XSalsa20 and Poly1305)
  • Scalable design:
    • Multi-tier key design to allow instant password changes regardless of the number of addresses stored
    • Import WIF keys
    • Import pay-to-script-hash scripts for things such as multi-signature transactions
    • Ability to export a watching-only version which does not contain any private key material
    • Programmatically detectable errors, including encapsulation of errors from packages it relies on
    • Address synchronization capabilities
  • Comprehensive test coverage

Documentation

[GoDoc] (http://godoc.org/github.com/btcsuite/btcwallet/waddrmgr)

Full go doc style documentation for the project can be viewed online without installing this package by using the GoDoc site here: http://godoc.org/github.com/btcsuite/btcwallet/waddrmgr

You can also view the documentation locally once the package is installed with the godoc tool by running godoc -http=":6060" and pointing your browser to http://localhost:6060/pkg/github.com/btcsuite/btcwallet/waddrmgr

Installation

$ go get github.com/btcsuite/btcwallet/waddrmgr

Package waddrmgr is licensed under the copyfree ISC License.