cardano_byron_legacy

Module for Cardano Byron legacy keys derivation.

class CardanoByronLegacyConst

Bases: object

Class container for Cardano Byron legacy constants.

HD_PATH_KEY_PBKDF2_SALT: str = 'address-hashing'
HD_PATH_KEY_PBKDF2_ROUNDS: int = 500
HD_PATH_KEY_PBKDF2_OUT_BYTE_LEN: int = 32
class CardanoByronLegacy(bip32_obj: Bip32Base)

Bases: object

Cardano Byron legacy class. It allows master key generation, children keys derivation and addresses computation like the old Daedalus wallet. Addresses are in the Ddz… format, which contains the encrypted derivation path.

classmethod FromSeed(seed_bytes: bytes) → CardanoByronLegacy

Construct class from seed bytes.

Parameters:

seed_bytes (bytes) – Seed bytes

Returns:

CardanoByronLegacy object

Return type:

CardanoByronLegacy object

m_bip32_obj: Bip32Base
Bip32Object() → Bip32Base

Return the BIP32 object.

Returns:

Bip32Base object

Return type:

Bip32Base object

HdPathKey() → bytes

Get the key used for HD path decryption/encryption.

Returns:

Key bytes

Return type:

bytes

HdPathFromAddress(address: str) → Bip32Path

Get the HD path from an address by decrypting it. The address shall be derived from the current object master key (i.e. self.m_bip32_obj) in order to successfully decrypt the path.

Parameters:

address (str) – Address string

Returns:

Bip32Path object

Return type:

Bip32Path object

Raises:

ValueError – If the address encoding is not valid or the path cannot be decrypted

MasterPrivateKey() → Bip32PrivateKey

Get the master private key.

Returns:

Bip32PrivateKey object

Return type:

Bip32PrivateKey object

MasterPublicKey() → Bip32PublicKey

Get the master public key.

Returns:

Bip32PublicKey object

Return type:

Bip32PublicKey object

GetPrivateKey(first_idx: Union[int, Bip32KeyIndex], second_idx: Union[int, Bip32KeyIndex]) → Bip32PrivateKey

Get the private key with the specified indexes. Derivation path: m/first_idx’/second_idx’ The indexes will be automatically hardened if not (e.g. 0, 1’ -> 0’, 1’).

Parameters:

  • first_idx (int or Bip32KeyIndex object) – First index

  • second_idx (int or Bip32KeyIndex object) – Second index

Returns:

IPrivateKey object

Return type:

IPrivateKey object

Raises:
GetPublicKey(first_idx: Union[int, Bip32KeyIndex], second_idx: Union[int, Bip32KeyIndex]) → Bip32PublicKey

Get the public key with the specified indexes. Derivation path: m/first_idx’/second_idx’ The indexes will be automatically hardened if not (e.g. 0, 1’ -> 0’, 1’).

Parameters:

  • first_idx (int or Bip32KeyIndex object) – First index

  • second_idx (int or Bip32KeyIndex object) – Second index

Returns:

IPublicKey object

Return type:

IPublicKey object

Raises:
GetAddress(first_idx: Union[int, Bip32KeyIndex], second_idx: Union[int, Bip32KeyIndex]) → str

Get the address with the specified indexes. Derivation path: m/first_idx’/second_idx’ The indexes will be automatically hardened if not (e.g. 0, 1’ -> 0’, 1’).

Parameters:

  • first_idx (int or Bip32KeyIndex object) – First index

  • second_idx (int or Bip32KeyIndex object) – Second index

Returns:

Address

Return type:

str

Raises: