4f8b4dbcb2
BIP32 keys serialize the depth as a uint8 over the wire. I noticed uint16 was being used and that the depth was being taken modulo 256 during serialization. This seems like a bug, as the behaviour is not described in the BIP, and also introduces incompatibilities which can be hard to make sense of. For example, the parent fingerprint should be 0x00000000 for a key of depth zero, whereas with the existing code if depth=256, then the serialization will set 0 but still set a parent fingerprint. |
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|---|---|---|
| .. | ||
| bench_test.go | ||
| cov_report.sh | ||
| doc.go | ||
| example_test.go | ||
| extendedkey.go | ||
| extendedkey_test.go | ||
| README.md | ||
| test_coverage.txt | ||
hdkeychain
[
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(https://travis-ci.org/btcsuite/btcutil) ![ISC License]
(http://img.shields.io/badge/license-ISC-blue.svg)
[
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(http://godoc.org/github.com/btcsuite/btcutil/hdkeychain)
Package hdkeychain provides an API for bitcoin hierarchical deterministic extended keys (BIP0032).
A comprehensive 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.
Feature Overview
- Full BIP0032 implementation
- Single type for private and public extended keys
- Convenient cryptograpically secure seed generation
- Simple creation of master nodes
- Support for multi-layer derivation
- Easy serialization and deserialization for both private and public extended keys
- Support for custom networks by registering them with chaincfg
- Obtaining the underlying EC pubkeys, EC privkeys, and associated bitcoin addresses ties in seamlessly with existing btcec and btcutil types which provide powerful tools for working with them to do things like sign transations and generate payment scripts
- Uses the btcec package which is highly optimized for secp256k1
- Code examples including:
- Generating a cryptographically secure random seed and deriving a master node from it
- Default HD wallet layout as described by BIP0032
- Audits use case as described by BIP0032
- Comprehensive test coverage including the BIP0032 test vectors
- Benchmarks
Installation and Updating
$ go get -u github.com/btcsuite/btcutil/hdkeychain
Examples
- [NewMaster Example]
(http://godoc.org/github.com/btcsuite/btcutil/hdkeychain#example-NewMaster)
Demonstrates how to generate a cryptographically random seed then use it to create a new master node (extended key). - [Default Wallet Layout Example]
(http://godoc.org/github.com/btcsuite/btcutil/hdkeychain#example-package--DefaultWalletLayout)
Demonstrates the default hierarchical deterministic wallet layout as described in BIP0032. - [Audits Use Case Example]
(http://godoc.org/github.com/btcsuite/btcutil/hdkeychain#example-package--Audits)
Demonstrates the audits use case in BIP0032.
License
Package hdkeychain is licensed under the copyfree ISC License.