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60 lines
2.4 KiB
Markdown
60 lines
2.4 KiB
Markdown
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hdkeychain
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==========
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[](https://travis-ci.org/btcsuite/btcutil)
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[](http://copyfree.org)
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[](http://godoc.org/github.com/btcsuite/btcutil/hdkeychain)
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Package hdkeychain provides an API for bitcoin hierarchical deterministic
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extended keys (BIP0032).
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A comprehensive suite of tests is provided to ensure proper functionality. See
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`test_coverage.txt` for the gocov coverage report. Alternatively, if you are
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running a POSIX OS, you can run the `cov_report.sh` script for a real-time
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report.
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## Feature Overview
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- Full BIP0032 implementation
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- Single type for private and public extended keys
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- Convenient cryptograpically secure seed generation
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- Simple creation of master nodes
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- Support for multi-layer derivation
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- Easy serialization and deserialization for both private and public extended
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keys
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- Support for custom networks by registering them with chaincfg
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- Obtaining the underlying EC pubkeys, EC privkeys, and associated bitcoin
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addresses ties in seamlessly with existing btcec and btcutil types which
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provide powerful tools for working with them to do things like sign
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transations and generate payment scripts
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- Uses the btcec package which is highly optimized for secp256k1
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- Code examples including:
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- Generating a cryptographically secure random seed and deriving a
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master node from it
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- Default HD wallet layout as described by BIP0032
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- Audits use case as described by BIP0032
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- Comprehensive test coverage including the BIP0032 test vectors
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- Benchmarks
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## Installation and Updating
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```bash
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$ go get -u github.com/btcsuite/btcutil/hdkeychain
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```
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## Examples
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* [NewMaster Example](http://godoc.org/github.com/btcsuite/btcutil/hdkeychain#example-NewMaster)
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Demonstrates how to generate a cryptographically random seed then use it to
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create a new master node (extended key).
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* [Default Wallet Layout Example](http://godoc.org/github.com/btcsuite/btcutil/hdkeychain#example-package--DefaultWalletLayout)
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Demonstrates the default hierarchical deterministic wallet layout as described
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in BIP0032.
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* [Audits Use Case Example](http://godoc.org/github.com/btcsuite/btcutil/hdkeychain#example-package--Audits)
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Demonstrates the audits use case in BIP0032.
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## License
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Package hdkeychain is licensed under the [copyfree](http://copyfree.org) ISC
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License.
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