org.bitcoinj.crypto

Class HDUtils

java.lang.Object

org.bitcoinj.crypto.HDUtils

public final class HDUtils
extends java.lang.Object

Static utilities used in BIP 32 Hierarchical Deterministic Wallets (HDW).

Constructor Summary

Constructors

Constructor and Description
HDUtils()

Method Summary

Modifier and Type	Method and Description
static com.google.common.collect.ImmutableList<ChildNumber>	append(java.util.List<ChildNumber> path, ChildNumber childNumber) Append a derivation level to an existing path
static com.google.common.collect.ImmutableList<ChildNumber>	concat(java.util.List<ChildNumber> path, java.util.List<ChildNumber> path2) Concatenate two derivation paths
static java.lang.String	formatPath(java.util.List<ChildNumber> path) Convert to a string path, starting with "M/"
static byte[]	hmacSha512(byte[] key, byte[] data)
static java.util.List<ChildNumber>	parsePath(java.lang.String path) The path is a human-friendly representation of the deterministic path.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HDUtils

public HDUtils()

Method Detail

hmacSha512

public static byte[] hmacSha512(byte[] key,
                                byte[] data)

append

public static com.google.common.collect.ImmutableList<ChildNumber> append(java.util.List<ChildNumber> path,
                                                                          ChildNumber childNumber)

Append a derivation level to an existing path

concat

public static com.google.common.collect.ImmutableList<ChildNumber> concat(java.util.List<ChildNumber> path,
                                                                          java.util.List<ChildNumber> path2)

Concatenate two derivation paths

formatPath

public static java.lang.String formatPath(java.util.List<ChildNumber> path)

Convert to a string path, starting with "M/"

parsePath

public static java.util.List<ChildNumber> parsePath(@Nonnull
                                                    java.lang.String path)

The path is a human-friendly representation of the deterministic path. For example: "44H / 0H / 0H / 1 / 1" Where a letter "H" means hardened key. Spaces are ignored.