spark_rust::signer::traits

Module derivation_path

Source
Expand description

Key derivation path handling for Spark wallet.

This module implements the key derivation scheme for the Spark wallet, following BIP43 conventions with a custom purpose identifier. The scheme is structured as:

  • Identity key: m/8797555’/account’/0’
  • Base signing key: m/8797555’/account’/1’
  • Temporary signing key: m/8797555’/account’/2’

For leaf keys, an additional index is derived from the leaf ID:

  • Leaf key: m/8797555’/account’/1’/hash(leaf_id)’

The purpose value 8797555 is derived as the last 3 bytes of sha256(“spark”) in decimal (863d73).

All indices use hardened derivation (denoted by the apostrophe) for enhanced security. Account indices should start from 0.

§WARNING

Implementing this trait with non-standard derivation paths will make your wallet incompatible with the Spark ecosystem. Only implement this trait if you fully understand the consequences and are intentionally creating a non-standard wallet.

Structs§

SparkDerivationPath
Represents a BIP32 derivation path for wallet keys.

Enums§

SparkKeyType
Key types for Spark wallet.

Traits§

SparkSignerDerivationPath