HDPrivateKey class

Represents a private key with a chain code that can derive BIP32 keys.

Inheritance

• Object
• HDKey
• HDPrivateKey

Constructors

HDPrivateKey.new({required ECPrivateKey privateKey, required Uint8List chaincode, required int depth, required int index, required int parentFingerprint})

HDPrivateKey.decode(String b58, [int? version])

Creates a HD private key from a base58 encoded representation (b58). May throw InvalidBase58, InvalidBase58Checksum or InvalidHDKey. If version is provided a InvalidHDKeyVersion will be thrown if the version does not match.

factory

HDPrivateKey.fromKeyAndChainCode(ECPrivateKey privateKey, Uint8List chaincode)

Creates a master key from an existing private key and chain code.

HDPrivateKey.fromSeed(Uint8List seed, {String key = "Bitcoin seed"})

Generates a master key from a 16-64 byte seed. The default BIP32 HMAC key can also be changed.

factory

Properties

chaincode → Uint8List

no setter, inherited

depth → int

final, inherited

fingerprint → int

The integer fingerprint of the identifier

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

hdPublicKey → HDPublicKey

no setter

identifier → Uint8List

The identifier hash for this key

no setter, inherited

index → int

final, inherited

parentFingerprint → int

final, inherited

privateKey → ECPrivateKey

final

publicKey → ECPublicKey

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

derive(int index) → HDPrivateKey

Derives a key at index returning the same type of key: either public or private. The index can inlcude the hardenBit to specify that it is hardened.

override

deriveHardened(int index) → HDPrivateKey

Derives a hardened key at index which only applies to private keys. The index must not include the left-bit to specify that it is hardened.

inherited

derivePath(String path) → HDPrivateKey

Derives a child key in a path format akin to "m/15/3'/4" where the optional "m" specifies that this key is a master key and "'" specifies that an index is a hardened key.

override

encode(int version) → String

Encodes the base58 representation of this key using the version prefix.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited